How many problems does the 2012 MERCEDES-BENZ C-Class have?

The 2012 MERCEDES-BENZ C-Class currently has 582 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.

What are the most common problems with 2012 MERCEDES-BENZ C-Class?

The most common problems reported for the 2012 MERCEDES-BENZ C-Class are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.

Where does this 2012 MERCEDES-BENZ C-Class problem data come from?

All problem and complaint data for the 2012 MERCEDES-BENZ C-Class comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.

2012 MERCEDES-BENZ C-Class Problems

AIR BAGS

297 complaints

I was driving normally last week when the driver's head restraint system (known by Mercedes as Neck Pro) unexpectedly and without warning blew at my head. The noise was very loud, and the headrest slammed against my head. Luckily, I was driving approximately 20-25 miles per hour, daytime, on a residential street without too many other vehicles. I was able to pull over to investigate what happened and ensure I wasn't injured and did not collide with any objects in the road. If this had happened on the highway at highway speeds with a less attentive driver, I could see this potentially resulting in a major collision. The road was fat, no bumps, weather was clear. There is no reason why this happened. From what I can tell, the system looks like it failed (plastic clips broke off) and the system did not intentionally deploy. It has not been repaired and is available for inspection. I have not taken it to the dealership for review. The vehicle is in perfect condition with no warnings. It very recently passed Maryland state inspection.

Jul 14, 2025

The contact owns a 2012 Mercedes-Benz C250. The contact stated that she noticed that the air bag warning light was illuminated. The dealer was contacted because the vehicle had been serviced under NHTSA Campaign Number: 21V638000 (Air Bags) and the dealer stated that the seat belt was malfunctioning. The vehicle was not repaired. The manufacturer was contacted, and a case was filed. The failure mileage was 78,000.

Feb 09, 2023

The contact owns a 2012 Mercedes-Benz C300. The contact stated that the driver’s side air bag warning light was illuminated. The contact took the vehicle to a certified mechanic who cleared the code. The failure recurred. The vehicle was not diagnosed nor repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 93,541.

May 28, 2021

PLEASE ALLOW THIS TO SERVE AS A LIMITED NOTICE TO I) MERCEDES-BENZ AG, II) MBUSA AND III) DAIMLER AG OF A NEW TAKATA AIRBAG INFLATOR RUPTURE FOR TREAD COMPLIANCE PURPOSES. THE SUBJECT VEHICLE IS A 2012 MERCEDES-BENZ C250W,VIN#: ***************** (THE 'VEHICLE'). I HAVE THE PRIVILEGE OF REPRESENTING TWO INDIVIDUALS WHO WERE SEVERELY INJURED ON 11/7/2020 WHEN THE PASSENGER-SIDE TAKATA AIRBAG INSTALLED IN THE VEHICLE IMPROPERLY RUPTURED DURING A CRASH EVENT DEPLOYMENT. THE VEHICLE WAS IN MOTION AT THE TIME OF THE RUPTURE. DUE TO THE VIOLENT EXPLOSION OF THE INFLATOR MODULE, THE INFLATOR'S IGNITER CAPS AND HOUSING BLEW APART AND STRUCK THE PASSENGER, A YOUNG FEMALE, IN THE FACE AND HEAD WITH LETHAL VELOCITY. THE INCIDENT OCCURRED IN PINELLAS COUNTY, FLORIDA. THE YOUNG FEMALE PASSENGER HAS BEEN HOSPITALIZED FOR 2 WEEKS WITH SEVERE INJURIES AND MULTIPLE SURGICAL PROCEDURES. HER CURRENT INJURIES INCLUDE BUT ARE NOT LIMITED TO, LOSS OF VISION IN HER LEFT EYE, COGNITIVE TRAUMA, FACIAL PARALYSIS AND DIMINISHED HEARING CAPACITY IN BOTH EARS: AS SHOWN BELOW, THE PASSENGER-SIDE AIRBAG MODULE BLEW APART (AS WE HAVE SEEN IN MULTIPLE PASSENGER-SIDE TAKATA BAGS)'DUE TO THE LARGE AMOUNT OF AMMONIUM NITRATE PROPELLANT USED IN THIS MODEL FOR DEPLOYMENT. THE BELOW IMAGES SHOW PIECES OF THE INFLATOR MODULE POST-EXPLOSION, INCLUDING THE INFLATOR MESH, HOUSING AND IGNITER CAPS FROM STAGE 2 SEPARATION. ## VIN PASSED ## 2012 MERCEDES-BENZ C250W ##*DT*DT*JB *TR

Nov 22, 2020

Crash: 1

Injuries: 2

MY MERCEDES HAS A RECALL FOR THE TAKATA AIR BAGS. I DO NOT LIVE IN CLOSE PROXIMITY TO A MERCEDES DEALERSHIP. I HAVE SPOKEN TO THE DEALERSHIP IN ORANGE PARK, FL WHICH IS AROUND 85 MILES AWAY. I HAVE, ALSO, SPOKEN TO MERCEDES CUSTOMER CARE. NEITHER WILL ASSIST IN HAVING MY CAR PICKED UP AND TAKEN TO THE DEALERSHIP OR ARE THEY OFFERING ANY ASSISTANCE IN REMOVING A BARRIER TO HAVE THE AIR BAG REPLACED. I UNDERSTAND THIS IS AN IMPORTANT RECALL BUT HOW DO I COMPLY AND MITIGATE RISK OF INJURY IF MERCEDES IS NOT WILLING TO HELP CAR OWNERS WHO LIVE IN RURAL AREAS? PLEASE ADVISE.

Nov 11, 2020

+ 292 more complaints for this component

ENGINE

50 complaints

The contact owns a 2012 Mercedes-Benz C250. The contact stated that while driving at an undisclosed speed, there was an abnormal rattling sound coming from the vehicle with the check engine warning light illuminated. The contact drove the vehicle to the shoulder of the road. The contact stated that the rattling sound continued, and the vehicle shuddered abnormally. The vehicle was towed to the residence. The independent mechanic provided mobile service and diagnosed the vehicle with cam shaft timing chain adjuster failure. The contact was informed that the cam shaft timing chain adjuster needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline and report the failure. The failure mileage was approximately 150,000.

Aug 18, 2025

MY VEHICLE, HAS THE ENGINE MAKING NOISE ,WHEN STARTING,, THE LIFTERS RATTLE...I WAS TOLD TO CHECK WITH MERCEDES BENZ FOR RECALL INFO...HOWEVER, THE COMPANY STATES,THIS VEHICLE IS NOT INCLUDED....IT HAS 52,000 ORIGINAL MILES, AND HAS BEEN MAINTAINED...I BELIEVE, THIS PROBLEM SHOULD BE COVERED BY THE MANUFACTURER...PLEASE ADVISE.....I HAVE HAD THE MB DEALER DO A DIAGNOSIS..THEY CONFIRM THE LIFTERS ARE DISFUNCTIONING....

Dec 07, 2024

What component or system failed or malfunctioned, and is it available for inspection upon request? As I started my car from a cold start and even when starting the engine, the car was creating this tractor like sound. No system has failed but I read the camshaft adjuster and tensioner pulley has come out of site, which can ruin the engine. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, it was audible by the dealer but I was told that it would be a normal issue on a cold start. Now they will charge $200 for a service diagnosis. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Mercedes Benz gave an extended warranty on the program for extension of 10 years but the problem has been happening for multiple people and it has been happening again that this warrants a recall over a poorly designed part that can destroy the car’s engine. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No such codes or messages. Which is why this is so scary. This incident has been happening for the past 8 months or so and besides a letter about a warranty no such information.

May 14, 2024

Faulty camshaft adjusters creating timing chain to stretch and tensioners to fail , causing excessive wear to the crankshaft and wear of the teeth resulting in catastrophic damage and complete engine failure ( I have not replaced this timing chain or camshaft adjuster yet but i can hear the timing chain rattling from the defective parts from manufacturer. )

Oct 13, 2022

AUTO IS LESS THAN 100K MILES EXCELLENT CONDITION HAD THE TURBO GASKET GO BAD ON THE AUTO. OIL LEAKING IN THE MAIN ENGINE COMPARTMENT AND ON GROUND DUE TO THE GASKET ISSUE. COULD CAUSE DAMAGE TO ENGINE AND TURBO. GASKET SHOULD NOT HAVE GONE BAD. WHILE AT THE MECHANICS SAME ISSUE WITH THE SAME EXACT MODEL OF MERCEDES, NOT SURE THE YEAR BUT IDENTICAL BODY STYLE. REPAIRS WERE COMPLETED ON 06/07/22 COST THROUGH MECHANIC $465.00 ANY TIME DUE TO PASSING OR EXCELARTION THE ENGINE WOULD MISS OUT AND LOSE POWER FOR THE PASSING OR ESCELARTION.

Jun 08, 2022

+ 45 more complaints for this component

SUSPENSION

39 complaints

Rear subframe crossmember rotting, needs replacement. It seems to be a common problem with this vehicle and the assumption by most professional is that it a faulty part supplied by a third party to Mercedes. The rest of the cars undercarriage is pristine, making me wonder why just this one part would rust out.

Jul 16, 2025

Took the car in for an oil change and asked them to look at the brakes and rear as there was a strange noise. Vehicle was inspected and found the entire subframe is rotted. Was advised this is a common problem with Mercedes and there were some recalls. Unfortunately no open recall on this vehicle and it is now not driveable as this is a safety risk. Car has been driven 60 miles/day for the past 3 months and could have had serious consequences.

Jan 29, 2025

The contact owns a 2012 Mercedes Benz C300. The contact stated that while driving at various speeds, the vehicle would shake without warning. The vehicle was taken to an independent mechanic for a tire rotation; while there, the mechanic discovered severe corrosion on the vehicle's subframe and the contact was advised to no longer drive the vehicle. The manufacturer was notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 160,000. The VIN was not available.

Jan 10, 2025

Subframe rusted and broke. It is available for inspection. Burlington Mercedes inspected the vehicle and told me it was not safe to drive. Mercedes-Benz USA is aware of the problem. They issued a letter extending the warranty covering only the subframe to twenty years and unlimited miles. Burlington Mercedes refused to do the subframe replacement without installing all new arms, which are currently not damaged. The cost to install all new arms is $2826.54. Mercedes-Benz USA is offering a warranty extension that their dealerships refuse to honor. This needs to be turned into a recall instead of a warranty extension. This subframe issue is dangerous. It affects Mercedes vehicles dating back to 2005 and encompasses many of their models including: SLK- Class, CLS-Class, SL-Class C-Class Sedan/Coupe, GLK-Class E-Class Sedan/Wagon, E-Class Coupe/Cabrio

May 14, 2024

the rear subframe broke while in motion and caused the car to drift and bounce while i was cornering the traction control and stability control intervened and i also counter steered once back in straight line i braked and the car tilted on the side, we lifted the car in a mechanic shop and found a rotten subframe one side broke the other was almost giving up.

Feb 01, 2024

+ 34 more complaints for this component

STRUCTURE

32 complaints

We are having issues when braking. The backend of the car wiggles when braking hard. Shop advised that the subframe on the passenger side completely broke away and on the driver side it is very rotted. They advised this is a safety issue since the broken side could pierce the gas tank. I googled this and found that there was a warranty extension for the same year and make car (document MC-10233796-0001) Spoke to the service department and they advised this did not apply to our VIN. I called the corporate number on the warranty extension letter and they advised the same. My complaint is that several other Mercedes models and makes have this issues and are covered. Why isn't ours? Based on images I found online it looks to be the exact failure mode. My son was supposed to drive the car 4.5 hours on the 4th and could have gotten into an accident or been stranded. I also read that in Germany they are fixing all vehicles with this issue.

Jul 08, 2024

car has a rear subframe damage from corrosion

Feb 27, 2024

The contact owns a 2012 Mercedes-Benz C300. The contact stated that the front driver's side interior door handle was fractured. The contact was unable to open the door from inside the vehicle. An independent mechanic inspected the vehicle and referred the contact to the manufacturer for assistance. The dealer was not notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 95,000.

Dec 21, 2023

Rear subframe is corroded, rusted through, and cracking.

Aug 28, 2023

Recently we had he brakes replaced and new tires put on to prepare for a trip out to Minnesota in a couple of weeks. My son felt like the car wasn’t driving correctly and took it to the shop and upon being put on the lift the service department called and said the rear subframe rusted out and was broken and the gas tank was scratched do to the subframe rubbing against it. When he called Mercedes they told him there was an extended warranty put on these cars which I never received a letter concerning this issue. *The car is waiting to be towed to Mercedes, they would not give us back the keys, it was too dangerous to drive. *my son unknowing drove this car on the highway putting himself and others in danger for who knows how long. If he did not take it in for a check before driving himself and his father to Minnesota they could have been killed. Perhaps a fire due to the gas tank damage. *confirmed by independent repair shop but will be seen when the car is towed to Mercedes. *there was no warning to the dangerous situation my family was placed in. The cars should have been recalled. We were told by Mercedes they were fixing the problem as it arises, luckily no one was injured or killed when this problem arose!

Jun 24, 2023

+ 27 more complaints for this component

UNKNOWN OR OTHER

19 complaints

The electronic steering lock failed resulting in my car being completely disabled. My safety was not at risk in this particular instance. I was left stranded in a parking lot at night. The component was not inspected by the manufacturer or dealer. The manufacturer/dealer did not inform anyone that this problem will happen to every car with this compensation. This component failed without warning/symptoms/messages. It will fail on all Mercedes Benz cars from 2008-2016. The problem has not been confirmed or communicated by the dealer. Other Mercedes benz owners have encountered this problem resulting in their cars being disabled and leaving them stranded.

Jul 24, 2025

Took my 2012 Mercedes c300 to my mechanic and the Rear Sub frame is rusting out.

Feb 19, 2024

I started hearing noises about a week ago while driving. Last night while driving home in the evening traffic, I braked and car violently jerked and veered to the right almost hitting the car in the front. I took the car to a shop this morning and they found that the rear subframe had collapsed due to rust and advised the car was extremely dangerous to drive.

Oct 06, 2023

I was driving on the highway and came to a sudden stop and the car fishtailed putting our safety and the safety of others at risk. I brought my car to a mechanic and I changed my tires. When I went for a wheel alignment the mechanic found that the K bar subframe was corroded and cracked. There was no warning prior to the failure. I had no idea there was a problem because the K bar is behind the snow flap and was hidden.

Jul 16, 2023

Dear Sir/Madam, I am writing to file a formal complaint against the Fletcher Jones Mercedes-Benz franchise located in Ontario, California and Mercedes-Benz USA , specifically addressing the issue of the dealership closing the recalls and not honoring the warranty recall on my 2012 Mercedes C250, even though I have received multiple automotive part recall notices for my vehicle. Please see the attached files for more details.

Jun 24, 2023

+ 14 more complaints for this component

SUSPENSION,STRUCTURE

13 complaints

Mercedes of Danbury replaced the rear sub frame CODE 3441 47, since my mechanic (Newtown Auto Repair) told me that the Front subframe is in real bad shape, rotten/rusted, that it is dangerous to drive the car in this condition since the wheel and steering components are part and attached to it, the car would be out of control and all over the road any of these components fail and pull / brake away from the rusted out Sub Frame. When I brought the car in was under the impression that Mercedes Benz would replace front and back Sub Frames. But now they informed me of only recall on rear subframe, rear subframe will let go wheels will collapse, front controls the car and failing could kill people and total the car. frames.

Nov 24, 2025

The contact owns a 2012 Mercedes-Benz C300. The contact stated while driving at an undisclosed speed, he heard an abnormal sound coming from the rear of the vehicle, prompting him to pull to the shoulder of the roadway. After a visual inspection, the contact observed that both trailing arms had become detached. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who determined that extensive frame corrosion had caused both trailing arms to detach. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 143,000.

May 07, 2024

The subframe assembly on my car is defective, as I learned today from my mechanic. This issue is known for my model of car and widely reported online. The mechanic says they have seen this issue before. I heard a strange noise while driving so I took the car to the shop after 60 days of enduring the sound. The shop immediately deemed the car unfit for driving and unsafe. In their words, if I had hit one bad pothole, the wheels could have come off the back of my car, and my gas tank could have been punctured, leading to a potentially catastrophic accident. I am lucky to have gotten this defective part identified before being injured, and others need to be protected from this outcome before a serious injury occurs. As of now this has only been inspected by the shop doing the fix. People online have indicated that Mercedes will not fix the problem free of charge - and in fact they charge a premium to other places to replace this faulty subframe. There were zero warning indicators of this dangerous issue - the car drove completely normally aside from an infrequent knocking sound that would occur every 5-10 minutes under normal city driving conditions.

Mar 03, 2023

Sub Frame broke from rust. Mercedes Benz has acknowledged the issue in Europe and repaired/replaced the part at no charge. Numerous problems and complaints can be found on line indicating that we, the car owner must and can complain to Mercedes for partial or complete support on the repair. But they do not acknowledge the problem in the US.

Dec 28, 2022

The contact owns a 2012 Mercedes-Benz C300. The contact stated that upon taking his vehicle to a dealer for maintenance repairs; he was provided an estimate for the repair of corrosion to the rear subframe of the vehicle. Upon investigation, the contact discovered that the failure could lead to a potential braking system failure. The manufacturer was notified of the failure and informed him that there were no recalls on the vehicle. The vehicle was not repaired. The failure mileage was approximately 97,000.

Oct 31, 2022

+ 8 more complaints for this component

FUEL/PROPULSION SYSTEM

13 complaints

During hard acceleration the high-pressure fuel pump fails. I've never had to replace this part on any other car that I have owned. When I research the part for this car, I reviewed many forums and articles complaining about the failure of the high-pressure fuel pump on the Mercedes c250 sport or similar chassis. The vehicle performs normally until there is hard acceleration; then the engine light comes on. This causes the car to lose acceleration power and slows the car down significant and can be dangerous especially if driving on a freeway or highway. The failure of the part has been reported to occur as early as 30k miles.

Jul 10, 2024

While trying to pass big rig on freeway my car went into lymph mode and stalled causing the car behind me to brake and almost caused an accident. My engine light came on & after getting it checked out I retrieve the following code P0002. After doing some research it appears this is an ongoing issue with this year and model of car.

Jul 27, 2023

Car is leaking gas very dangers . I contact Mercedes dealer regarding the recall on this type of Mercedes i have and they said only vehicles manufactured from April 18, 2011, through July 12, 2011. Mine was before or after , and they refuse to give me the exactly date for my car manufacturer. Car I use for Uber , and i don’t have any other income . If someone just through away a cigarette in parking lot might cause a big problem in the building and others cars in parking

Oct 23, 2022

My Mercedes 2012 C 300 is leaking gas which may lead to fire ( the fuel filter flange when operated in high temperatures

Oct 11, 2022

My car smell like a gas leak. I had went to a car shop to have the car to looked at. The mechanic had told me that the fuel filter flange is leaking gas.

Jul 15, 2022

+ 8 more complaints for this component

ELECTRICAL SYSTEM

9 complaints

I was replacing rear tail light bulb. Now I'm getting an error message on instrument cluster. I tried to fix the issue but couldn't do to the fact the wiring harness has melted. Mercedes Benz had a recall back in 2013 saying this is a safety issue. No recall for our car.

May 16, 2025

The contact owns a 2012 Mercedes-Benz C250. The contact stated while the vehicle was parked, the anti-lock theft prevention feature failed to function as intended. The contact stated that the steering wheel was seized, and the vehicle failed to start. The vehicle was towed to the residence. The contact was informed by the tow truck driver that the failure was due to the electronic lockout system. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 143,000.

Dec 30, 2024

Vehicle will not start, possible ESL/EIS failure.

Apr 30, 2024

The contact owns a 2014 Mercedes-Benz C250. The contact stated while driving 70 MPH, there was an abnormal frequency sound coming from the speakers followed by a popping sound. The contact then began to smell a burning electrical wiring odor with white smoke coming from the middle dashboard speaker. The contact immediately pulled over and turned off the vehicle. There was no warning light illuminated. Due to the failure, the contact called her father who towed the vehicle to her home where it remained in her possession. The contact reached out to the manufacturer by email and was informed that there were no recalls on the VIN. The contact was then referred to the NHTSA for further assistance. The vehicle was not repaired. The failure mileage was approximately 305,000.

Feb 22, 2023

Electronic Steering Lock (ESL) fails and your key fob nor your keyless go button will function, rendering your car unable to start...! Usually it's the cheap toy motor that engages the moving tab that locks and unlocks the column and communicates to the ignition to start the car... You get only a message to "remove your key" and the dash lights will not come on nor can you start the vehicle... Mercedes is aware of this, as there are thousands of complaints on this ESL issue... Mercedes needs to issue a recall and do away with this faulty ESL module...!!!! Oh by the way, they charge $1500+++ to fix it...

Dec 13, 2021

+ 4 more complaints for this component

SERVICE BRAKES

9 complaints

Brake line corrosion

Jul 25, 2024

on 6/20/23 I was driving this vehicle on the 5 freeway north bound exit 102 in Washington. i found myself travelling at 60mph just moving over to the middle lane of traffic. i needed to slow the vehicle a little and pushing down on brakes I found there was no reaction from the braking system. Making a quick decision I moved over to the emergency lane where I came to a stop. There were no warning signs of the issue. I had the vehicle towed to my Mercedes Benz dealership where I had the car service the day before on 6/19/23 where nothing was noted on this problem. After inspection from the technician at the dealership it was found that the brake vacuum pump was no longer working. Which technician said had caused the issue and he had never experienced this issue before. i am bringing this to your attention due to it could have caused a fatal accident to with me and other people on the freeway.

Jun 22, 2023

Brakes failed to deploy, randomly, during recent trip; VERY DANGEROUS; pressed brakes, would NOT engage and car kept moving and would not stop; pushed car into P (Park) to stop moving; just completed a 225 mi trip from Chicago to Detroit Metro area traveling at speeds between 65-70 mph with no issue, all service on vehicle is and has been conducted via Mercedes authorized dealers, had vehicle in for service on morning of trip for overview and safety check prior to leaving and no known issues; after coming off freeway engaged brakes upon pulling into neighborhood and vehicle brakes failed completely-stopped engaging; NO NOTIFICATION; NO INDICATOR LIGHTS OR READ OUT OF ISSUES related to brakes was indicated on dashboard; had we been on the freeway at the time of incident coming off an exit ramp at high speed we would have suffered a grave result, brakes failed completely. THIS IS A DANGER and UNACCEPTABLE for this manufacturer; vehicle has been towed to dealership, is not drivable, and is currently being assessed. This has been widely reported on other sites, regarding this specific vehicle, Mercedes C250, my model year is 2012; I researched this issue, yesterday, to determine what could possibly have gone wrong as vehicle was not leaking fluids and NO indication of issues during recent diagnostics and safety check two days prior. Not having sufficient braking capability with NO warning or indication is DANGEROUS, a liability to manufacturer and should be investigated immediately. Thank you.

Jul 19, 2021

AT ABOUT 40,000 MILES THE PARKING BRAKE BEGAN STICKING AND WAS DIFFICULT TO RELEASE. THIS WAS REPLACED UNDER WARRANTY. IT BEGAN HAPPENING AGAIN . I SPOKE TO THE MERCEDES USA AND THEY SAID I WOULD HAVE O PAY TO REPLACE IT. I BELIEVE THIS PART IS DEFECTIVE.

Dec 21, 2020

I WAS DRIVING ON THE HIGHWAY AT ABOUT 60MPH IN THE LEFT HAND LANE. I WAS ABOUT 7 CAR LENGTHS FROM THE CAR IN FRONT OF ME AS I HAD JUST MOVED INTO THAT LANE TO MOVE TO THE RAMP TO MOVE OFF THE HIGHWAY. THE VEHICLE IN FRONT OF ME BRAKED, AND WAS GOING AT A LOWER SPEED. I TRIED TO SLOW DOWN AND MY CAR DID NOT SLOW. I PRESSED MY BRAKE TO THE FLOOR AND MY CAR STILL WOULD NOT STOP. I WAS ABLE TO PULL TO THE SHOULDER AND THE CAR FINALLY CAME TO A STOP CLOSE TO THE RAMP, I THOUGHT IT WAS AN ISOLATED INCIDENT EXCEPT I SAW ON A WEBSITE, OTHERS HAD THE SAME PROBLEM.

Nov 04, 2018

+ 4 more complaints for this component

ENGINE,FUEL/PROPULSION SYSTEM

5 complaints

The contact owns a 2012 Mercedes-Benz. The contact stated while driving at an undisclosed speed, the Check Engine and High Pressure Fuel Pump warning lights was illuminated. The failure occurred on several different occasions. The vehicle was taken back to the residence. The contact did research and was made aware of an unknown NHTSA Campaign Number however, the VIN was not included. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

Apr 04, 2025

WHEN ACCELERATING TO PASS ON HIGHWAY CAR SUDDENLY GOES INTO LIMP MODE AND LOSSES POWER THIS IS DANGEROUS AT 70 PLUS MILES PER HOUR, ECM CODE READS P0002 HIGH PRESSURE FUEL REGULATOR FAILURE, CHECK ENGINE LIGHT WILL STAY ON UNTIL CAR HAS BEEN SHUT OFF FOR LONGER THAN TEN MINUTES OR IF YOU HAVE A SCANNER YOU CAN ERASE CODE AND DRIVE THE CAR NORMAL, NO PASSING. THIS HAS ALSO HAPPEN PULLING OUT FROM A STOP LIGHT CAR HAS BUCKLE WITH IMMEDIATE POWER LOSS AND WILL ONLY CREAK UP IN LIMP MODE JUST ENOUGH TO GET YOU HOME. I AM A WELL SEASON MECHANIC WITH OVER 20 YEARS EXPERIENCE AND THIS IS ABSOLUTELY DANGEROUS. PLEASE DON'T WAIT UNTIL SOMEONE GETS HURT OR KILLED BY THIS WHICH IS A KNOWN ISSUE GOING BACK BEFORE 2012. THIS HAPPENED 3 TIMES THIS AST WEEK AND TODAY.

Mar 01, 2021

COLD ENGINE VEHICLE JERKING I TOOK IT TO MERCEDES OF FORT MYERS FL AND THEY TOLD ME THAT THEY COULDN'T FIND THE PROBLEM AND I TOOK IT TO SO MANY OTHER PLACES AND STILL CAN'T FIND IT I'M JUST WONDERING IF IT COULD BE A RECALL

Sep 12, 2020

MY CAR HAS A STRONG ODER OF GAS. IS IT SAFE TO EVEN DRIVE TO A SHOP? HAVE THERE BEEN OTHER COMPLAINTS SIMILAR TO MINE?

Dec 17, 2017

WHILE MY CAR WAS RUNNING IN MY DRIVEWAY PRIOR TO DRIVING, THE ENGINE CAUGHT FIRE, TOTALING THE VEHICLE. THERE ARE NO OPEN RECALLS ON THIS SPECIFIC CAR, BUT WAS TOLD BY THE FIRE INVESTIGATOR THAT IT WAS EITHER ELECTRICAL OR FUEL PUMP RELATED. *TR

Feb 23, 2015

Fire: 1

ELECTRICAL SYSTEM,EXTERIOR LIGHTING

4 complaints

The taillights in my 2012 c300 was starting to go out intermittently. At first the notification came on for the brake light but the brake light kept working. Afterwards the rest of the taillights and the sidemarker light went out as well. I went to go take a look and the grounding wire was oxidated and corroded. A known issue in which there was a recall made for the 2008-2011 version of the w204 but this did not apply to the 2012 w204. As of last week my entire rear drivers side light is out which is a safety hazard especially at night. The hazard lights dont work in case of an emergency on one side, the brake lights are out to notify the driver behind me take I need to stop which can lead to a rear end collision, as well as the left turn signal not working leading to drivers not knowing that I will be turning left or needing to merge left as needed. All of this is a known safety hazard to Mercedes but no recall has been submitted yet.

Nov 03, 2025

TL* THE CONTACT OWNS A 2012 MERCEDES BENZ C300. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, A BURNING TYPE ODOR WAS PRESENT INSIDE THE VEHICLE. WHILING INSPECTING THE VEHICLE IT WAS DISCOVERED THAT REAR DRIVER AND PASSENGER SIDE TAIL LIGHT PLUGS HAD MELTED. ALSO, AFTER TURNING THE FRONT DRIVER SEAT HEATER ON A BURNING ODOR WAS PRESENT AND THE SEAT FELT EXTREMELY HOTTER THE NORMAL. THE CAUSE OF THE FAILURES WERE NOT DETERMINED. THE MANUFACTURER AND LOCAL DEALER WERE NOT YET NOTIFIED OF THE FAILURES. THE FAILURE MILEAGE WAS 70,000. ## VIN PASSED ## MERCEDES-BENZ 2012 C300 ##

Apr 26, 2021

Fire: 1

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. THE CONTACT STATED THAT THE TAIL LIGHTS FAILED TO ILLUMINATE, INCLUDING THE TURN SIGNALS AND BRAKE LIGHTS. THE CONTACT ATTEMPTED TO REPLACE THE TAIL LIGHT BULBS HIMSELF AND FOUND THAT THE TAIL LAMP ASSEMBLY HAD PARTIALLY MELTED. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ EURO MOTOR CARS (7020 ARLINGTON ROAD, BETHESDA, MD 20814, 301-986-8800) WHERE THE TAIL LAMP HOLDERS AND REAR WIRING AND BULBS WERE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS CONTACTED AND STATED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 14V177000 (EXTERIOR LIGHTING). THE MANUFACTURER PROVIDED PARTIAL REIMBURSEMENT FOR THE REPAIR. THE APPROXIMATE FAILURE MILEAGE WAS 85,000. *BF CONSUMER STATED IT SHOULD BE COVERED AS THE C250 IS THE SAME CAR AS THE C300 INCLUDED IN THIS RECALL. THE DIFFERENCE IS THE ENGINE SIZE AND YEAR (2012 VS 2011).*JB

Jul 29, 2019

2012 MERCEDES BENZ C300 - REAR TAIL LIGHT TAIL LIGHT FAILURE, FOUND BURN MARKS IN THE VEHICLE BULB ASSEMBLY (BULB PANEL) AND BURNED WIRES IT HAS A COMPLETE LOSS OF TAIL LIGHT LAMPS FUNCTION.

Nov 27, 2018

SUSPENSION,SERVICE BRAKES

4 complaints

The subframe has developed extensive rust and corrosion, which I believe is a result of faulty manufacturing. This corrosion has severely compromised the structural integrity of the subframe, posing a serious safety risk. The corrosion appears to be inherent to the materials or design used in the manufacturing process, leading to the rapid deterioration of the subframe. There are also no warning lights or failure indicators for this issue. As a result, the subframe is at risk of collapsing, which could cause catastrophic failure of the vehicle's suspension and steering systems. This situation creates an immediate danger to both the occupants of the vehicle and others on the road.

Sep 01, 2024

While I was driving my 2012 MB C300 4Matic Sport Sedan in Nov', 2023 with history of regular maintenance, noticed a pretty load knocking noise, shudder and drifting to left a bit when it brakes from the driver's rear side especially on the highways. I took it to our local mechanic who was horrified to report that the sub frame was broken and completely rotten out too specifically rust issue with the rear suspension-rear subframe. He gets other German Cars like BMW & Audi even older and more miles in Chicago but none have rusted so much as these MB C-Class cars. Knowing the Dealers wont accept it a manufacturing defect, he was planning to repair it (no chance of wielding that thin metal sheet as the likelihood of breaking it is high). I was surprised to see 2010 Chevy Impala having a much more robust under the cover protection and no rusting with 115k miles. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Feb 22, 2024

I found out about the Mercedes Subframe failure issue after having problems on the road, that could have killed me, and being warned not to drive anymore by an authorized repair shop because my vehicle was not safe for me to drive. This has caused many other issues with my cars mechanics due to this defect from the Mercedes factory.

May 16, 2023

From the mechanics notes: Four-wheel alignment could not be completed. Attempts to align the rear axle were unsuccessful due to flexing/movement in the rear suspension. A brief road test revealed occasional suspension “clunking” coming from the rear of the vehicle. Close examination of every suspension component mount revealed heavy cracking on the passenger side lower drag link subframe mount (see emailed image). The driver’s side low drag link mount location is also starting to show signs of overstress and rust/flaking. This is a known design defect that has been the subject of a manufacturer’s recall in Canada. Given the substantial safety impact of this design defect/failure, it is expected that a US recall will be forthcoming. Proper repair of this failure involves removing the entire rear axle/subframe assembly and either rebuilding/re enforcing the subframe or replacing it with a new unit and transferring all the suspension components to the new subframe. A current check of subframe availability is showing NLA (no longer available) status from Mercedes wholesale dealers – likely due to recent high demand and inability to satisfy that demand. This supply issue may also be playing a role in Mercedes’ failure to address this high level safety issue with a US based recall campaign. The manufacturer may be ramping up production of this component to address anticipated need – waiting to announce a recall when it has sufficient parts on hand to execute the campaign. It is strongly recommended that you file an NHTSA complaint for this issue and limit driving until the problem is rectified either independently or under the auspices of a recall campaign. The passenger side rear drag link has not yet completely separated from the subframe but is likely to do so soon which can result in an accident or loss of control as this critical suspension link is responsible for maintaining steering direction of the right rear wheel.

Mar 24, 2022

AIR BAGS,UNKNOWN OR OTHER

4 complaints

CPSC: I RECEIVED A NOTICE FROM MERCEDES THAT MY CAR MAY SERIOUSLY INJURE OR KILL ME BUT THEY CANT FIX IT YET. I ASKED FOR LOANER CAR UNTIL THEY COULD GET IT FIXED AND THEY SAID "WELL ITS REALLY NOT UNSAFE THEY JUST HAD TO SEND THE LETTER FOR LEGAL REASONS. *DT *JS

Feb 21, 2018

I HAVE GRANDCHILDREN FREQUENTLY IN MY CAR AND HAVE BEEN ANIOUS FOR MORE THAN A YEAR WITHOUT A REMEDY OR REPAIR TO CORRECT THE PROBLEM FROM STRESS AND WORRY OF INJURY/DEATH TO MYSELF OR FAMILY OR FRIENDS. WILL YOU PROVIDE ME WITH A SAFE VEHIICLE TO DRIVE/TRANSPORT UNTIL REPAIR IS DONE.

Jan 11, 2018

I HAVE CONTACTED THE MERCEDES BENZ DEALERSHIP TWICE SINCE THE AIRBAG RECALL. I WAS TOLD BOTH TIMES THAT THEY DO NOT HAVE THE PARTS TO REPLACE MY RECALLED AIRBAGS. MY SAFETY IS IN DANGER UNTIL THE PARTS ARE MADE AVAILABLE. THAT IS MY COMPLAINT.

Dec 24, 2017

TAKATA RECALL, NO REPAIR ON 2012 C250 MERCEDES AND NO ESTIMATE ON WHEN THEY WILL HAVE PARTS TO REPAIR. ISN'T IT DANGEROUS TO DRIVE THIS CAR WITH A PASSENGER IN FRONT SEAT? WHAT IS MY RECOURSE? ALSO ENGINE LIGHTS COMES ON AND SENSORS HAVE BEEN CHANGED AND MECHANIC DOES NOT KNOW WHAT ACTUAL PROBLEM IS/ COULD THIS JUST BE A BAD FUSE?

May 15, 2017

EXTERIOR LIGHTING

3 complaints

The contact owns a 2012 Mercedes-Benz C300. The contact stated that while the vehicle was parked, the passenger’s side rear taillight was inoperable. The vehicle was taken to a local dealer but was not diagnosed or repaired since the VIN nor the model year was not included in NHTSA Campaign Number: 14V177000 (Exterior Lighting). The manufacturer was not made aware of the failure. The failure mileage was approximately 180,000.

Jun 28, 2024

The contact owns a 2012 Mercedes-Benz C300. The contact stated while driving 35 MPH, he smelled a rubber burning odor. A message indicating that the turn signal was inoperable was displayed. The contact stated that he pulled to the side of the road and inspected the vehicle. The contact noticed that there was smoke coming from the rear passenger's side taillight. The contact stated that he opened the taillight panel and noticed that the interior and the bolt had melted. The contact was able to continue driving. The contact related the failure to Mercedes-Benz Campaign Number: 2014050001; however, the dealer informed the contact that the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in the campaign. The failure mileage was approximately 30,000.

Sep 14, 2023

RECEIVED MESSAGE TO CHECK LEFT TAIL LIGHT, BRAKE LIGHT, BACK UP LIGHT AND TURN SIGNAL. I PURCHASED NEW BULBS TO REPLACE. WHEN I PULLED OUT THE BULB CARRIER, I NOTICED THAT THE AREA NEAR THE WIRING HAD MELTED AND THERE WAS DISCOLORATION. I CAN'T EVEN REMOVE THE PLUG HOUSING FROM THE CARRIER BECAUSE OF THE DAMAGE. I NOTICED THAT THERE WAS A RECALL IN OLDER MODELS FOR THE SAME EXACT ISSUE.

May 09, 2017

SERVICE BRAKES, HYDRAULIC,STRUCTURE

3 complaints

The contact owns a 2012 Mercedes-Benz C300. The contact stated that the vehicle was making a loud bang sound towards the rear of the vehicle while driving over bumps in the roadway. The contact took the vehicle to the dealer and was informed that the rear subframe and the rear brake line were severely rusted. The subframe was replaced under an extended warranty coverage; however, the brake line was not covered under the extended warranty. The brake line was not replaced. The manufacturer was made aware of the failure. The approximate failure mileage was 110,000.

Jul 19, 2023

The contact owns a 2012 Mercedes-Benz C300. The contact stated that while his wife was driving at an undisclosed speed, she heard an abnormal sound coming from the rear of the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed that the subframe wheel assembly needed to be replaced. No warning lights were illuminated. The vehicle was repaired; however, the contact stated that he received an unknown manufacturer’s recall for the subframe assembly which it was then taken to the dealer, and the contact was informed by the technician that the rear brake line was leaking and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that the VIN was not included in a recall. The failure mileage was approximately 120,000.

May 08, 2023

The contact owns a 2012 Mercedes-Benz C300. The contact stated that the vehicle was taken to the dealer for an airbag inspection. During the inspection, the dealer informed the contact that the rear subframe was corroded. The vehicle was diagnosed and the contact was informed that the brake lines and rear subframe needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 120,000.

Aug 05, 2022

STEERING

3 complaints

The esl/eis failed. Turned car off and after coming back to try and turn it on, it didn't work. Steering wheel was locked and car wouldn't engage with key. After checking with mechanics and checking online, I discovered that it is a frequent issue that happens with no warning whatsoever. Which is quite worrisome to think the Steering wheel could lock at anytime without notice. My car is a 2012 Mercedes c250 coupe.

Sep 07, 2022

The contact owns a 2012 Mercedes-Benz C300. The contact stated that the vehicle was unable to start-up as needed. The vehicle was towed to the dealer where it was diagnosed with a faulty steering column sensor that needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 104,692.

Sep 01, 2022

THE STEERING WHEEL ,HAS ALUMINUM PLATING OR COVERING, THAT WAS PEELING OFF AND CUT MY FINGER AS I WAS DRIVING, THIS HAPPENED LAST YEAR AND WAS STILL UNDER WARRANTY, AND DEALER REPLACED, THIS IS HAPPENING AGAIN, AND THE DEALER HAS AGREED TO REPLACE EVEN THOUGH THE WARRANTY HAS EXPIRED. I THOUGHT YOU GUYS SHOULD KNOW. *TR

Jan 12, 2015

Injuries: 1

STEERING,ELECTRICAL SYSTEM

3 complaints

While driving, engine stopped, could not steer.. Looks like a defective Electronic Ignition Switch or steering lock! It seems to be a common problem on these cars!!! The car would not start. After 8 attempts, I was able to start car but was afraid to drive it. Could have been a disaster.

Jan 24, 2022

MY VEHICLE AND MANY OTHER MERCEDES BENZ MODELS SUFFER A FAILED ELECTRONIC IGNITION SWITCH AND ELECTRONIC STEERING LOCK. THIS IS A KNOWN DEFECT AMONGST MANY MODELS/YEARS OF MERCEDES BENZ VEHICLES AND ONLY A DEALER CAN REPAIR. THE COST OF REPAIR IS $1,900. THE CAUSES THE VEHICLES TO BE UNABLE TO START, AND VERY CLEARLY, A MANUFACTURER DEFECT.

Aug 29, 2020

THERE'S BEEN SEVERAL COMPLAINTS ON THE ELECTRONIC STEERING LOCK (ESL) GOING BAD. I EXPERIENCED THIS DANGER EXACT FAILURE. THE CAR JUST HIT 80,000 MILES AND THIS FAILURE HAPPENED. WHEN THERE ESL LOCKS, YOU CANNOT TURN ON THE CAR TO DO ANYTHING. I HAPPENED TO BE OUT OF TOWN AND I HAD TO GET MY CAR TOWED HOME WHICH COSTED ME OVER $400 AND DIVER THE STEERING WAS LOCKED THEY HAD TO USE SPECIAL DOLLIES TO TOW MY CAR. THE DEALERSHIP WAS GOING TO CHARGE ME $2200 TO DO THE REPAIR WHICH IS UNHEARD OF AND IT'S RIDICULOUS. THE VEHICLE WAS PARKED AND STATIONARITY. PUT THE KEY IN THE IGNITION AND NOTHING HAPPENS. I THOUGHT THE ISSUE WAS WITH THE IGNITION BUT IT'S THE STEERING LOCK SINCE IT WILL NOT UNLOCK. THE ISSUE APPEARS TO BE WITH THE MOTOR INSIDE OF THE UNIT FAILING.

Dec 14, 2019

ELECTRICAL SYSTEM,AIR BAGS

3 complaints

3 signal Signal light comes one saying abs, another SRS MALFUNCTION, also crushed control inoperable. Car will come one as normal next day car comes on no lights not 1 button work turn signals didn’t work then my car fan came on in the engines the also the when they the electric isn’t working i have to manually shift the gear

Dec 16, 2021

UPON STARTING THE VEHICLE I RECEIVE AIRBAG WARNINGS. ONE FOR THE DRIVER SIDE AND ANOTHER ONE FOR THE PASSENGER SIDE. I CAN CLICK ON "OK" TO CLEAR THEM OUT BUT WITH THE AIRBAG RECALL AND NO RESOLUTION I AM FEARFUL OF A MALFUNCTION. I HAD MY CAR TO THE MERCEDES DEALER TWO TIMES AND WAS TOLD THEY WOULD NEED TO INVESTIGATE IT, AT MY EXPENSE, WHICH COULD BE ANYWHERE BETWEEN $500-$4500 DEPENDING ON WHAT THEY FIND. WITH A SAFETY ISSUE AT RISK I THINK THE RESPONSIBILITY IS ON MERCEDES TO INVESTIGATE AND CORRECT THIS AT NO EXPENSE TO ME. I WILL HAVE TO SELL THE CAR AND LOSE MONEY OVER IT. I KEEP WAITING FOR THE AIRBAGS IN RECALL TO COME IN AND HAVE BEEN LIVING WITH IT LIKE THIS FOR OVER A YEAR BUT I AM SEEING NO END IN SIGHT TO THE RECALL BEING RESOLVED ANYTIME SOON.

Nov 21, 2019

MY AIRBAGS GO ON AND OFF ON THERE OWN. MY ELECTRICAL SYSTEM IS ALWAYS MESSED UP. MY LIGHTING GOES ON AND OFF, THE ELECTRICAL HAS CAUSED THE VEHICLE TO SOMETIMES JSUT SHUT OFF COMPLEYTELY AND NOT TUREN ON FOR DAYS. I HAVE HAD TIMES I HAD TO GET MY VEHICLE TOWED.

Oct 19, 2017

FUEL SYSTEM, GASOLINE

2 complaints

The contact owns a 2012 Mercedes-Benz C300. The contact stated the fuel tank was emitting a fuel odor. The contact stated that the fuel odor was extremely strong and could be smelled inside the residence while the vehicle was parked in the garage. There were no warning lights illuminated. The vehicle was taken to a Certified Mechanic, who diagnosed that the leak was coming from the top of the fuel tank; however, the mechanic was unable to specify the cause. The vehicle was towed to the dealer, but the vehicle was not diagnosed. The vehicle was not repaired. The contact became aware of NHTSA Campaign Number: 12V557000 ( Fuel System, Gasoline) online; however, the VIN was not included. The manufacturer was informed of the failure and informed the contact that the VIN was not under recall. The failure mileage was approximately 98,000.

Oct 28, 2025

The contact owns a 2012 Mercedes-Benz C350. The contact stated while the vehicle was parked, the contact noticed a strong smell of fuel around the exterior of the vehicle. In addition, the contact stated that while driving the vehicle, the fuel odor was extremely strong, and the contact could not wind the windows down. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was 53,000.

Oct 01, 2024

STRUCTURE,UNKNOWN OR OTHER

2 complaints

Rear subframe rotted out and broke due to corrosion. Rear crossmember is broken and needs replaced. My safety as well as the safely of other was put at risk. Loss of control at high speed could have been deadly. Luckily, I wasn’t going very fast at the time of incident or else who knows what would have happened to me or bystanders. Independent service center inspected and confirmed that incident was due to corrosion in the rear. They informed me of the extended warranty (20 years, unlimited miles) on 2008-2015 C300 models for this particular issue as my safety and the safety of others was put at risk. There were some symptoms leading up to the incident. At the time of braking the car would become unstable and feel skittish in the rear. It felt as if the rear was sliding to one side. The vehicle would also make some metal clinking noises at sharper turns. The symptoms had been more frequent in the prior 2-3 months of incident. The vehicle has been inspected and diagnosed by one shop and is currently getting a second opinion from another independent service center.

Aug 20, 2025

Vehicle was in for state inspection at an authorized inspection station. It failed inspection due to severely rusted and deteriorated rear K-Frame which had to be replaced to pass inspection. This is a major defect I feel caused by manufacture negligence. There were no warnings, messages or any signals indicating a problem. This issue could have severely caused an injury or even death had it not been detected by the mechanic inspector. Mechanic stated to me that he had replaced several of the rear K-Frames in the last year on this make and model.

Mar 14, 2022

SEATS

2 complaints

Active headrest on front passenger seat forcefully deployed without any collision or impact occurring. It happened during a gradual stop at red light. Bits of broken plastic were found on the passenger seat after deployment. Cannot re-set the headrest because of broken parts. No one was in the seat at the time but now concerned that the same thing will happen to driver's headrest.

Sep 30, 2024

I BROUGHT MY 2012 MERCEDES C250 NEW AND I THOUGHT I WAS BUYING A QUALITY CAR. HOWEVER, I NOTICED LAST YEAR THE DRIVER SEAT, PASSENGER SEAT AND ONE OF BACKSEAT SEAT COVER ARE RIPPED. I DRIVE MY CAR EVERYDAY TO WORK AND MY DAUGHTER TO SCHOOL ON A CITY STREET. MY DAUGHTER WEIGHS ABOUT 98 POUNDS AND I WEIGHT UNDER 170 POUNDS AND NO ONE SITS IN THE BACKSEAT. I AM SO DISAPPOINTED WITH MERCEDES BENZ COMPANY. I WILL BE GRATEFUL IF MERCEDES BENZ COMPANY WILL REPLACE MY SEAT COVERS PLEASE STAND BY YOUR NAME AS A QUALITY COMPANY. .

Mar 14, 2017

SUSPENSION,POWER TRAIN

2 complaints

vehicle sub-frame is cracked rusted corroded.

Feb 19, 2024

My car’s left side rear subframe is cracked due to corrosion. I started hearing a weird noise a week ago, and my car suddenly veered to the left side when I pressed the brake. I almost crashed my car because the car moved to the left of the yellow line on the road. I searched about this issue on Google and found that many C-Class owners (W204 generation) are experiencing the same issue due to the design flaws/defects by Mercedes-Benz. Now I have to pay up to $10,000 for the repair that is due to a defective part. In other countries like the UK and South Korea, this issue is covered by Mercedes-Benz, but in the United States, it is not covered. The repair is done at owner’s expense. I fear driving now because my car steers to the left when I press the brake. The rear subframe must be recalled since this issue is now common to all C-Class models produced in 2008-2014, and if car accidents occur, many people can be killed. I almost crashed my car due to my rotten subframe. Please help.

Feb 25, 2023

SUSPENSION,UNKNOWN OR OTHER

2 complaints

My rear subframe has corroded and has snapped, which is a major safety issue as while driving when I come to a stop the rear end of the car swags sideways. It do not stop straight.

Oct 21, 2023

2012 Mercedes Benz C300 4-Matic; Failure of rear subframe, significant crack of an important support member; very limited minor corrosion of the other parts of the frame, seems to be a manufacturing quality defect in a very specific part. Vehicle has been inspected by a highly qualified independent mechanic and by the closest manufacture's dealer in Massachusetts. Car cannot be driven because it is unsafe to do so. Both the dealer's service department and the independent repair shop have advised and confirmed this. Limited research online seems to indicate that this problem is well known by Mercedes Benz, and the manufacturer has issued recalls in other countries and has taken some responsibility for this defect. However, in the USA, Mercedes Benz has not issued a recall, to the best of my knowledge. It certainly seems that they should have done so. It is highly likely that many owners with this problem lack the knowledge or experience needed to report this problem to the appropriate authorities. I happen to have an above average knowledge regarding automobiles. I first became aware of this problem in Nov., 2021. The vehicle is available for inspection by your department if you deem appropriate.

Aug 05, 2022

SUSPENSION,STRUCTURE,UNKNOWN OR OTHER

2 complaints

Cradle and subframe are completely rusted out. This a widely common issue with these cars and am reading it across several forums. Other c300 owners say they have had the exact same issue and request for the MB dealership to fix it. Instead they are given a quote of nearly $10,000 to fix it. MB is responsible for this.

Jan 16, 2023

Rare Subframe breaking off parts are not available for at least 6 months. I have kids and mechanics advise me to keep it off the road. My only means of transportation

Oct 10, 2022

VISIBILITY

2 complaints

The contact owns a 2012 Mercedes-Benz C350. The contact stated while driving at an undisclosed speed, the sunroof glass shattered and landed on the sunroof cover. There was no impact on the sunroof that could have caused the sunroof to shatter. The contact and his daughter did not sustain any injuries. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 75,000.

Jul 01, 2022

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. WHILE DRIVING APPROXIMATELY 65 MPH, A SUDDEN LOUD, BOOMING SOUND WAS HEARD AS THE SUN ROOF EXPLODED. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF WACO (1625 N VALLEY MILLS DR, WACO, TX), BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 35,000.

Dec 31, 2018

POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM

2 complaints

I HAVE BEEN HAVING ISSUES WITH MY VEHICLE SINCE I PURCHASED IT. STARTING WITH ME NOT HAVING ENOUGH POWER FROM A START, IN AN ATTEMPT TO GAIN ENOUGH POWER TO DRIVE AT A SAFE SPEED FROM THE START, AS IF THE VEHICLE LAGS & NO MATTER THE GASOLINE OR SERVICE, THE PROBLEM NEVER CORRECTS. WHEN I'M TRYING TO GAIN SPEED TO MAINTAIN WITH THE FLOW OF TRAFFIC SAFELY THE VEHICLE LAGS NOTABLY BEFORE GAINING SPEED. I'M NOW HAVING TO REPLACE THE ENGINE BC THE OIL COOLANT HOSE BURST WHILE I WAS DRIVING ON THE HIGHWAY WITH MY CHILD IN THE CAR. MY CHECK ENGINE LIGHT ACTIVATED BUT THE ONLY NOTICE DISPLAYED ON THE DASH WAS THE ENGINE COOLANT WHEN IT WAS LOW. WHEN THE HOSE BURST WHILE I WAS DRIVING ABOUT 60MPH I HEARD A POP SOUND UNDER THE HOOD, SAW SMOKE COMING FROM THE EXHAUST, THEN A CLANKING NOISE UNDER THE HOOD THAT GOT LOUDER & LOUDER UNTIL I WAS ABLE TO PULL OFF OF THE HIGHWAY, & THEN I NOTICED A VERY LARGE AMOUNT OF OIL ON THE GROUND THAT LEFT A TRAIL ALONG THE GROUND FROM MY VEHICLE. THAT WAS VERY DANGEROUS AS MY VEHICLE LOST POWER DURING THAT INCIDENT. I'M TOLD BY THE MECHANIC, THE ENGINE HAS TO BE REPLACED. THIS HAPPENED WITHOUT A WARNING. THE MERCEDES BENZ IS SUPPOSED TO BE A SAFE & RELIABLE LUXURY VEHICLE & NOT A NIGHTMARE TO HAVE FOR THE OWNER.

Dec 30, 2020

I BOUGHT THE CERTIFIED CAR AT 50K AND AT 70K MILES, RIGHT AFTER THE WARRANTY ENDED - CHECK ENGINE LIGHT CAME ON AND THE DEALERSHIP SAID IT WILL COST $8K DUE TO CAMSHAFTS TO REPAIR!! THEY EVEN SUGGESTED THAT I SHOULD CONSIDER TRADING THE CAR IN! KEEP IN MIND I STILL OWE $28K SO THAT OPTION IS OUT! SINCE THEN THE CHECK ENGINE LIGHT STILL ON EVEN AFTER I GOT IT REPAIRED AT A LOCAL/AFFORDABLE MECHANIC AND IT'S ABOUT 110K MILEAGE AND THE ENGINE IS RATTLING AS IT RUNS. THIS IS MY 3RD BENZ AND THE FIRST 2 FAILED DUE TO THE TRANSMISSION FAILURE. I JUST CAN'T BELIEVE THESE GERMAN CARS CAUSE SO MANY PROBLEMS AND SO COSTLY TO REPAIR. WHAT HAPPEN TO YOU PAY FOR WHAT YOU GET!!! TODAY, WHILE I WAS DRIVING THE CAR JUST SLOWLY STOP AND THE ENGINE CUT OFF! AAA CAME TO CHECK AND IT'S NOT THE BATTERY SO WILL NEED TO GET TOWED. STILL OWE $10K LEFT- I DON'T KNOW WHAT TO DO! NO OTHER CAR TO DRIVE .

Dec 11, 2018

UNKNOWN OR OTHER,ENGINE

2 complaints

CHECK ENGINE LIGHT IS ON AND UPON QUICK ACCELERATION THE CAR MISFIRES AND BEGINS TO SHAKE. ALSO HAVING WATER COME THROUGH TOP FRAME WHEN IT RAINS

Jan 12, 2020

WHILE DRIVING ON I-5 NORTH COMING FROM LA JOLLA, MY VEHICLE STOPPED ACCELERATING, AND SUDDENLY STOPS IN THE MIDDLE OF A BUSY FREEWAY. I TURNED OFF THE ENGINE, THEN RESTARTED AFTER FIVE SECOND. AFTER RESTARTING MY VEHICLE IT STARTED RUNNING AGAIN. THIS HAS HAPPENED THREE TIMES ALREADY, AND HAVE BROUGHT MY VEHICLE TO THE SERVICE CENTER (ON EACH OCCASION). SERVICE REPORT INDICATE TRANSMISSION ERROR. AT TIMES, THE "SLIPPERY ROAD" SIGN ON MY DASHBOARD WOULD BLINK EVEN THOUGH THE WEATHER IS HOT OR HAS NOT RAIN FOR AGES.

Sep 04, 2015

AIR BAGS,STRUCTURE

2 complaints

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V017000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED PLAZA MOTORS (LOCATED AT 11654 OLIVE BLVD, CREVE CORE, MO 63141, 314-485-4926) AND WAS INFORMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS NOT MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE.*MP CONSUMER STATED WHILE DRIVING IN A SNOW COVER ROAD, HEARD A LOUD NOISE AND REALIZED CAR HIT THE CURVE TAKING DOWN THE PASSENGER BUMPER.*JB

Nov 22, 2019

Crash: 1

TAKATA RECALL WAS MADE ON THIS CAR IN JANUARY 2017 AND NO REMEDY HAS BEEN RELEASED OVER TWO YEARS LATER. ALSO, THE PAINT ON THE WHOLE CAR BUBBLED BEING A DEFECT FROM MERCEDES.

Feb 08, 2019

STEERING,VEHICLE SPEED CONTROL,SERVICE BRAKES

1 complaint

-The steering wheel and brake locked up and became unusable while driving at approximately 75mph. Cruise control was enabled for a few miles (maybe 2) and disabled after. Around 5 minutes after disabling, the car began to surge between acceleration and deceleration drastically on its own. All of the dashboard lights that come on when the key is initially inserted came on at once while engine was on/running and the car was in drive. After finally being able to reach a safe enough spot, I put the car in park and turned the engine off. I sat for a few minutes to try and turn the engine/car back on and the car would not crank, but the overhead lights, radio, and dash lights were functioning. -This was an extremely dangerous experience. The car began to decelerate rapidly in heavy freeway traffic. At that speed, with many semi-trucks traveling nearby, this sudden loss of speed created an extremely dangerous situation. My vehicle instantly became a slow moving obstacle in the lane. Only by luck and quick reaction was a serious or fatal collision avoided. The car would not start back up so I was sitting at the edge of the highway as many cars flew by just inches away from my car. -I am away at college in a rural city. Accessibility is limited as well as support because of lack of resources. -The car was towed to a mechanic who does not specialize in German cars and stated they did not have the proper tools to "get into the car" because the motor is "locked up" and the car wouldn't crank. -The vehicle will be towed to the nearest dealership (50mi away) who stated they won't be able to look at it for a few weeks from date of arrival. Research indicates this may be linked to a known issue with Electronic Steering Lock (ESL) / Electronic Ignition Switch (EIS) failure in Mercedes vehicles, which can electronically disable the engine and steering. This could've easily been fatal for me and still poses an alarming threat if not addressed.

Sep 15, 2025

SERVICE BRAKES, HYDRAULIC

1 complaint

The contact owns a 2012 Mercedes-Benz C250. The contact stated while driving 35-40 MPH and depressing the brake pedal, the brake pedal was significantly stiff, and the vehicle failed to respond as needed. The contact stated that upon standing on the brake pedal, the vehicle responded as needed. The contact stated that the failure recurred while driving 65 MPH. The vehicle was taken to the dealer, where the vacuum pump was replaced; however, the failure recurred. The vehicle was taken to Mercedes-Benz of Beaumont (1865 I-10 S, Beaumont, TX 77701), where it was test-driven, and the dealer became aware that the brake pedal was extremely firm. The dealer diagnosed the vehicle and determined that the vacuum pump needed to be replaced. The part was replaced; however, the failure persisted. The contact stated that the failure increased, causing the contact to engage the parking brake to stop the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 96,826.

Jul 01, 2025

POWER TRAIN,AIR BAGS,ENGINE

1 complaint

The model/year Mercedes-Benz are well known for experiencing this/these particular issues. My research has shown that these year/make/model vehicles are experiencing the same type of mechanical failures nationwide. The issues all relatively begin around 75,000 miles. I've only had my car 3 years putting 30000 on it hardly driven/cared for **Issue Found:** Oil was leaking onto the ignition coil and spark plug of cylinder 3. **Source of Leak:** Valve cover gasket failure. **Recommended Repairs:** - Replace the valve cover gasket (to halt the oil leak). - Replace spark plugs and ignition coil (which were contaminated/damaged by oil). **Relevance to Warranty:** The valve cover gasket is only covered if it fails as a result of an internally lubricated engine part causing damage. Ignition coils and spark plugs are maintenance items and are not covered by warranty plans. **Required Repairs (Identified Mechanical Issues)** - **Coolant Pipe Leak – $850** **Issue:** Coolant leaking from a pipe on the side of the cylinder head. **Relevance to Warranty:** Typically not covered unless it pertains to a failure in a covered system such as the water pump or cylinder head due to an internal breakdown. This is likely classified as an external plumbing component, which is not included. - **Oil Feed Line Leak – $600** **Issue:** Oil leaking from the side of the engine, traced back to the oil feed line. **Relevance to Warranty:** This is not typically covered unless the oil feed line is part of the oil pump system and has failed due to an internal issue (usually regarded as an external line). **Other Items Found (Worsening Issues)** - **Timing Chain Rattle / Cam Adjuster Noise – $6,000** -**Issue:** Rattling sound during startup. **Diagnosis:** Noise emanating from the timing chain and camshaft adjusters. **Relevance to Warranty:** This is covered under Secure Plus, as both the timing chain and camshaft adjusters are recognized as internally lubricated par

Jun 12, 2025

ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE

1 complaint

1. The car radio, blue-tooth, speakers, sound, car remote sound. Happened after a battery change by AAA - unsure if it's related. CUstomer service tried to resolve it - radio turns on, but nothing else works. 2. Doors won't unlock outside or inside - except passenegers side is open. 3. Accelerator acting strange - won't pick speed after 30, then 60 4. there was an air bag recal of this car a while ago.

Jan 27, 2025

STEERING,POWER TRAIN,SERVICE BRAKES

1 complaint

Lost of drive power and the vehicle steering wheel locked on my mercedes from a damaged malfunctioning steering lock actuator module due to mechanical issues within the steering column such as bad steering wheel assembly, faulty steering lock module or issue with the wiring or other electrical components and the mercedes dealer is the only one who solves this issue no other mechanic in general. My safety was at risk due to I lost power and lost of front brakes due to bad sway bar assembly or components could of caused and accident when this happened on November 12, 2024 the problem dealership found during vehicle inspection was code 25464 they told me recommend to replace electric lock module and repair estimate was $2,829.78 and before I approved the the amount I told Mr Ivan Velasco service advisor that after they replace the module that if my vehicle was going to be working again and that if I was just going to make 1 payment of $2,829.78 then I would approved it so I did. Weeks later I got an email asking for more money they wanted another payment for $600 saying it needed a sensor that has something to do with the transmission because after replacing the new module the vehicle did not start up there was no type of communications nothing at all and I responded that I was not going to pay $600 more just cause they don't know what their doing because they promise me the car was going to work after they replace the module now that it did not want to crank up they found another issue that's their fault on not doing there job the right way and for telling lies yes their was flashing blue or red icon on my dashboard that look like a car and a lock would go on and off and it displayed a message saying The theft protection is activated. I want to know if I can get this issue approved and to be considered a recall can you please help I'm so frustrating and mad that they want more money when it's already so expensive please help I would of appreciate it thank you.

Jan 27, 2025

STEERING,LANE DEPARTURE

1 complaint

I got stranded in the middle of the street my vehicle does not crank steering lock so I had my vehicle towed into the Mercedes dealership the one in Figueroa st Monday November 18 2024 at around 03:24pm and this is what they told me. Needs immediate attention custom recommendation ELECTRIC STEERING LOCK During vehicle inspection found electric steering lock has malfunction code 25464 recommend to replace electric steering lock first and perform re-check. Repair total estimate: $2,829.78 I definitely can't afford to pay that amount please help with this issue

Nov 18, 2024

STEERING,SUSPENSION,WHEELS

1 complaint

My 2012 c300 has a rotted rear subframe making the car not able to be driven. It has major ,life threatening, costly damage and this issue already has a recall all over the world but not in the United States. If I can get the assistance to pay this repair, it will be gladly appreciated.

Jul 16, 2024

ELECTRICAL SYSTEM,VISIBILITY

1 complaint

The contact owns a 2012 Mercedes-Benz C300. The contact stated that after opening the sunroof and then attempting to close the sunroof, the sunroof failed to fully close. The contact had to open and close the sunroof several times before the sunroof closed. Additionally, the contact stated that there was water entering the vehicle from the sunroof which caused electrical failures. The contact stated that the vehicle was drivable, but the "Anti-Theft" warning light illuminated. The contact stated that several other warning lights were later illuminated, and the vehicle would not start. The contact had the vehicle towed to a dealer who diagnosed the vehicle and determined that water had damaged the driver’s side electrical wiring harness. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 169,000.

Jun 14, 2024

SUSPENSION,STRUCTURE,SERVICE BRAKES

1 complaint

Took my car for a doorknob repair and was told the whole subframe is rotted. They told me not to drive the car on the highway. The car brakes very hard to the right and always goes right while making cranking noises. Car feels very unsafe. I paid a lot of money for this and own a 2012 c300 4matic.

Jun 04, 2024

STRUCTURE,SERVICE BRAKES

1 complaint

This is a low mileage car with odometer reading of 25668 (less than 2000 miles per year), used sparingly and always parked in the garage. On 05/07/2024 I noticed brake fluid flowing from the left rear side of the car; on examination this seemed to come from the flexible hose that connects the brake fluid line to the brake caliper. I called my Mercedes-Benz (MB) dealer and arranged for further inspection and service. The technician identified that the brake fluid lines to the rear were both totally corroded and in need of immediate replacement. Since the lines were embedded behind the subframe it necissated lowering the subframe to access. Other parts were also severely corroded and required replacement. (see attached PDF of Invoice) The total cost of the repair was $4,592.93. The dealership applied a discount of $150.00 to this for an amount due of $4,442.93. As an engineer, I believe the material used for the brake fluid lines were unsuitable and furthermore were unprotected for the harsh environment experienced under the car, and I believe MB with all their experience in automobiles manufacturing over the years clearly should have known and forseen this fact; I do believe that MB is responsible for this premature failure of the brake lines of my car aven driven only 25,666 miles to date. I am therefore requesting NHTSA to require MB to reimburse me for the unnecessary expense of the costly repairs. It is only fortunate that this failure was identified in my garage and not on the highway. Please advise me of your resolution. Thank you.

May 18, 2024

ELECTRICAL SYSTEM,AIR BAGS,ENGINE

1 complaint

1) cranshaft and camshaft position sensors, timing problems and it has to be replaced this is a common damage in Mercedes Benz 2012 c250. 2) this put in risk my life because it can brake the engine in a highway and the car could be off.

Oct 18, 2023

SUSPENSION,WHEELS,UNKNOWN OR OTHER

1 complaint

Rear driver side wheel was making a clicking noise leading us to believe there was an issue with the strut and/or shock. Due to the nature and severity of the noise, we took the vehicle to our mechanic ASAP. Upon inspection, mechanic identified that the sub-frame had completely rusted through which could lead to other catastrophic issues making vehicle no longer safe to drive unless repaired. Due to the age of the vehicle being 11 years old, the cost to repair was almost the value of the vehicle basically making this a complete loss. I understand that Mercedes Benz has extended the warranty to 20 years for this issue for other models identifying that it is a design/parts defect but not the C300 although I have found that this is also an issue for this model.

Sep 23, 2023

FUEL SYSTEM, GASOLINE,SERVICE BRAKES

1 complaint

The contact owns a 2012 Mercedes-Benz C300. The contact stated while driving at various speeds, extra brake travel time was needed to stop the vehicle. There was no warning light illuminated. The contact had taken the vehicle to an independent mechanic where the vehicle was purchased, and he was informed that the failure was caused by the new brake pads placed on the vehicle. The contact eventually took the vehicle to a dealer and was informed that the fuel tank and brake lines were corroded; and the contact was provided an estimate for the repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 96,000.

Apr 20, 2023

SUSPENSION,POWER TRAIN,SERVICE BRAKES

1 complaint

The left rear weld of the subframe on my 2012 C300 4matic has rotted through and appears to be a manufacture's part defect. I found out about this issue from a brake inspection and told it is a safety concern, which Mercedes Benzes is aware of but has no recalls for the defect.

Mar 26, 2023

ELECTRICAL SYSTEM,UNKNOWN OR OTHER

1 complaint

Popping sounds and smoke from center dash and right rear speaker. Center speaker magnet extremely hot to the touch.

Mar 23, 2023

UNKNOWN OR OTHER,VISIBILITY/WIPER

1 complaint

It is a wide-spread issue and commonly known issue that when the car battery is replaced in Mercedes-Benz vehicles, the climate control stops working, as well as the blower. The safety issues: •Car battery needed to be replaced during non-daylight hours during the winter. •Climate control stopped working immediately upon battery replacement, and issues with blower arose. •I drove home in the dark, during winter, without the ability to defrost my windows. A quick Google search for this issue will uncover an abundance of consumer complaints and common themes regarding this issue.

Mar 14, 2023

ENGINE,STRUCTURE

1 complaint

The contact owns a 2012 Mercedes-Benz C250. The contact stated while starting the vehicle, the vehicle started very rough with a rattling sound coming from the vehicle. The check engine warning light illuminated. The vehicle was not diagnosed. On another occasion, while opening the front driver’s side door, the door handle fractured. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was 90,000.

Mar 13, 2023

FUEL SYSTEM, GASOLINE,FUEL SYSTEM, DIESEL

1 complaint

The contact owns a 2012 Mercedes-Benz C300. The contact stated that while parked, the vehicle failed to start. The vehicle was towed to the dealer where it was diagnosed as having water intrusion. The vehicle was not repaired. The contact referenced the failure to NHTSA Campaign Number: 22V955000 (Fuel System, Gasoline, Fuel System, Diesel). The manufacturer was made aware of the failure. The failure mileage was approximately 109,000.

Jan 20, 2023

STEERING,SUSPENSION

1 complaint

Rear Sub Frame Assembly failure. It is available for inspection upon request. Vehicle rear end begins to wobble at speeds above 40 mph. The issue causes steering to become more complicated and the vehicle veers sharply while braking. This issue makes all C Class vehicles with this Sub Frame Assembly extremely unsafe, especially at highway speeds. Vehicle has been inspected by the authorized Mercedes Benz dealership in Indianapolis, IN. Service Advisor stated it's "amazing" that there hasn't been a recall issued yet. Based on this body style there have been roughly 320,000 of these C-Class vehicles sold. If the NHTSA truly cares about safety, they will launch an investigation into this matter. There are no warning lamps or messages that appear prior to this failure.

Dec 01, 2022

STRUCTURE,SUSPENSION

1 complaint

The contact owns a 2012 Mercedes-Benz C300. The contact stated while driving 35 MPH, the contact heard an unusual noise coming from the rear of the vehicle. The vehicle was taken to the dealer, and the mechanic stated that the rear subframe was rusted and the passenger’s side rear control arm was detached from the subframe. The vehicle was repaired. The manufacturer was contacted and stated there was no recall for the failure. No other assistance was offered. The failure mileage was 43,960.

Nov 07, 2022

STEERING,SUSPENSION,STRUCTURE

1 complaint

Dealer states that the rear subframe has rusted and degraded to the point of requiring full replacement. The car is 10 years old with 98,000 miles on the odometer. This is premature degradation of an essential component.

Sep 01, 2022

STRUCTURE,POWER TRAIN

1 complaint

The contact owns a 2012 Mercedes-Benz C300. The contact stated that while the vehicle was receiving a routine maintenance, she was informed that the rear sub frame was rusted and had two holes. The vehicle was diagnosed that there was a transmission leak and the rear sub frame needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure but no additional assistance was provided. The failure mileage was approximately 88,000.

May 10, 2022

STEERING,SUSPENSION,UNKNOWN OR OTHER

1 complaint

I drove over an object on the highway and noticed my car veering left and wobbly when turning. A week after, it is squealing like a load of piglets in my trunk whenever I go over a bump, then my battery light came on and I took it to the shop and contacted my insurance, who denied my claim saying it was 'wear and tear'.

Apr 07, 2022

VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM,FUEL SYSTEM, GASOLINE

1 complaint

2012 C250 has a known defect with high pressure fuel pump. I personally have had an intermittent issue where vehicle will unpredictably stop working under heavy throttle and enter limp mode as the computer throws a fault code. This results in loss of power after the code making vehicle unpredictable and dangerous in passing situations. It leaves you stranded in the passing lane with oncoming traffic with a vehicle that will not accelerate. I have submitted a request multiple times with Mercedes benz corporate who has declined my submission. This issue has been ongoing since 2016. They have offered an extended warranty on the vehicle 10 years and 120,000 miles as they know there is a defect. It is dangerous and needs to be covered for all of the affected vehicles.

Jan 20, 2022

VEHICLE SPEED CONTROL,ENGINE,FUEL/PROPULSION SYSTEM

1 complaint

When accelerating to pass a vehicle the check engine light comes on and there is loss power. When this happens there is a huge potential of a crash. The car has to be shut off to try and reset this. When you are on the frwy this puts life at danger. The code is a p002 and if you research it Mercedes is aware of this and is most likely a defective high pressure fuel pump problem that needs replacing but there have been no recalls. I have looked it up on you tube and has been on ongoing issue with no recalls as of yet. I am taking my car to dealer on 11/15/2021 for this issue which they will charge me for even though its a safety issue

Nov 13, 2021

SUSPENSION,SERVICE BRAKES,FUEL/PROPULSION SYSTEM

1 complaint

The rear drivers side had a loud chunking/clanking noise while driving and the vehicle was unable to control and break when in motion. Driving was impossible as the breaking component was a total failure and car could not be controlled while traveling down 45-50mph zone. I reduced my speed to 20-25 mph by letting off on the gas to get better control of the car if breaking would need to be suddenly made. I relied on the shoulder to pull off if any sudden breaking was needed. The car was immediately take to be reviewed by a specialized Mercedes benz mechanic and further inspection proved that the rear subframe on the driver’s (left) side was corroded and broken. The connecting arms are rusted, corroded and rendered the car inoperative. I notified my insurance company as well as car manufacturers corporate office. I researched this issue further and discovered that this reoccurring issue with this make and model. There are a pheletera of recounting of this same issue on various message boards to validate the same issues and callouts I found. The car was taken to the dealership that it was purchased and further inspection showed that the left side subframe/ subframe arms were corroded with rust and broken. The brake lines and fuel tank were equally rusted and corroded. The service manager confirmed that this is defect of the car but it had been part of a recall. I had the car towed for 2nd opinion to another dealership service department to access the car and this callout further validated the corrosion and rust was wide spread and has rendered the car inoperable unless these damages were fixed.

Oct 06, 2021

TIRES

1 complaint

TIRE BRAND: SUMITOMO TIRE LINE: HTR A/S P02 TIRE SIZE: 225/40R18 92W COMPONENT: BUBBLE IN TREAD AREA, NOT SIDEWALL DOT NUMBER: LM6R2916 AND LM6R2416 TWO FRONT TIRES WERE PUCHASED NEW FROM AMAZON.COM IN MAY OF 2017 AND WERE IMMEDIATELY INSTALLED AND PUT INTO SEVICE. THERE WERE APPROXIAMATELY 30K MILES ON THE TIRES. THE FIRST FRONT TIRE FAILED IN JULY OF 2020 (LM6R2916) AND THE SECOND FRONT TIRE FAILED IN APRIL OF 2021 (LM6R2416). NO SPECIFIC EVENTS LED TO THE FAILURE OF EACH TIRE AND OCRRUED DURING NORMAL DRIVING. THE FIRST TIRE STARTED MAKING A WEIRD WOBBLING NOISE AT HIGHWAY SPEEDS. INSPECTION REAVEALED ON LARGE BUBBLE ON THE INNER PORTION OF THE TREAD. THE SECOND TIRE FAILURE OCCURRED AFTER STRANGE NOISES AS IF A ROCK WAS STUCK IN THE TIRE. INSPECTION REVEALED A SMALL BUBBLE FORMING ON THE INNER TREAD. ALL FOUR TIRES WERE REPLACED. A WARRANTY CLAIMED WAS ATTEMPTED WITH SUMITOMO. THEY REFUSED TO HONOR A WARRANTY AND TOLD ME THE VENDOR WOULD TAKE CARE OF THE WARRANTY CLAIM. AMAZON.COM REFUNDED THE PURCHASE PRICE.

Apr 20, 2021

STEERING,SUSPENSION,FUEL/PROPULSION SYSTEM

1 complaint

THE REAR SUBFRAME HAS CORRODED AROUND THE AREAS WHERE THE TRAILING ARM AND CONTROL ARM MEET THE SUBFRAME ON BOTH SIDES OF THE VEHICLE, AND HAS DISINTEGRATED AROUND THE DRIVERS SIDE REAR TRAILING ARM CAUSING IT TO HAVE DETACHED, ALONG WITH A PIECE OF THE SUBFRAME. THE METAL OF THE SUBFRAME IS DISTORTED AROUND THE AREA OF THE BREAK. THE DETACHED TRAILING ARM AND PIECE OF SUBFRAME ARE NOW MAKING CONTACT WITH THE FUEL TANK AS WELL. THE FUEL TANK COULD HAVE EASILY RUPTURED AND IGNITED WHEN THIS CAR WAS STILL IN OPERATION, AS THIS CAR WAS DRIVEN FOR SEVERAL DAYS BEFORE THE MANUFACTURING DEFECT WAS DISCOVERED. THE FAILURE HAPPENED WHEN COMING TO A GENTLE STOP FROM 20-30 MILES PER HOUR ON A STRAIGHT ROAD. THERE WAS A LOUD SNAPPING NOISE FROM THE DRIVERS SIDE REAR. THIS CAR HAD 92,000 MILES AT TIME OF THE STRUCTURAL FAILURE AND HAS BEEN REGULARLY SERVICED, EXCLUSIVELY AT MERCEDES-BENZ. MERCEDES-BENZ USA CUSTOMER SERVICE IS UNABLE TO OFFER ANY ASSISTANCE. THIS EXACT ISSUE HAS LED TO A RECALL OF THE SAME MODEL IN CANADA, AND THERE ARE COUNTLESS NHTSA REPORTS DESCRIBING SIMILAR STRUCTURAL FAILURES. MERCEDES-BENZ USA IS AWARE OF THIS ISSUE AND IS ALSO AWARE THAT THERE IS A RECALL IN CANADA, BUT HAS MADE IT CLEAR THAT GOODWILL WILL NOT BE EXTENDED.

Sep 02, 2020

ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM

1 complaint

THE STEERING WHEEL LOCKED COULD NOT START THE CAR. CAR WAS DRIVEN THEN TURNED OFF, WHEN YOU RETURN TO THE VEHICLE, IT WILL NOT TURN ON.EVERYTHING WAS UNRESPONSIVE,WHICH WONT TURN ON ENGINE. HAD TO TOW TO DEALERSHIP IT COST ME 1800.00. SO THEY SAID THE ELECTRICAL FOR CAR WAS BAD. THEN MY FUEL TANK LEAKED, THE COMPONETS TO THE FUEL TANK ALL WERE BAD, AND L COULD SMELL THE GAS IN MY CAR AND GARAGE. COST ME 805.00 TO REPAIR. LUCKY IT DID NOT BLOW UP

Jun 18, 2019

POWER TRAIN

1 complaint

TL* THE CONTACT OWNS A 2012 MERCEDES BENZ C300. THE CONTACT STATED THAT WHEN THE VEHICLE WAS STARTED AND THE ACCELERATOR PEDAL WAS DEPRESSED, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT MENTIONED THAT THE FAILURE OCCURRED PERIODICALLY. THE VEHICLE WAS TAKING TO AN INDEPENDENT MECHANIC WHERE THE FAILURE COULD NOT BE DETERMINED. MERCEDES-BENZ OF ALEXANDRIA (200 S PICKETT ST, ALEXANDRIA, VA 22304 (703) 341-2100) AND MERCEDES-BENZ OF ANNAPOLIS (324 6TH ST, ANNAPOLIS, MD 21403 (888) 261-7620) WERE CONTACTED AND INFORMED THE CONTACT TO BRING THE VEHICLE IN FOR A DIAGNOSTIC TEST. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR A DIAGNOSTIC TEST OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 135,000.

May 09, 2019

VISIBILITY,STRUCTURE

1 complaint

TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ C250. WHILE DRIVING APPROXIMATELY 65 MPH, A SUDDEN LOUD BOOMING NOISE WAS HEARD. THE CONTACT NOTICED THAT THE SUN ROOF EXPLODED. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF WACO (1625 N VALLEY MILLS DR, WACO, TX), BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 35,000. *BF CONSUMER STATED IT WOULD COST $8,000 TO REPAIR. VIN IS NOT VALID.*JB

Apr 01, 2019

STRUCTURE,ENGINE

1 complaint

CAM SHAFT ADJUSTERS WENT OUT AND HAD TO BE REPAIRED FOR NORMAL USE AND DRIVERS SIDE DOOR HANDLE BROKE ON THE INSIDE AND NEEDS TO BE REPLACED DUE TO REGULAR USE.

Oct 13, 2018

STEERING,ELECTRICAL SYSTEM,ENGINE

1 complaint

STEERING WHEEL LOCK AFTER VEHICLE IS SHUT DOWN. WHEN YOU RETURN TO THE VEHICLE INSERT THE KEY THE INSTRUMENT CLUSTER, SPEEDO, STEERING WHEEL IS UNRESPONSIVE WHICH WILL NOT ALLOW YOU TO TURN THE ENGINE. THIS SHOULD BE A RECALL IT'S A ELECTRONIC STEERING LOCK THAT FAILS ON SEVERAL MERCEDES BENZ CAUSING THE OWNER TO TOW THE VEHICLE TO THE DEALERSHIP FOR A 2,000 DOLLAR REPAIR. IT HAPPENS SEVERAL TIMES BEFORE IT COMPLETELY FAILS.

Sep 05, 2018

AIR BAGS,ENGINE

1 complaint

TAKATA RECALL...ENGINE MAKING A LOUD RATTLE WHEN STARTED.

Sep 02, 2018

AIR BAGS,SEATS,FUEL/PROPULSION SYSTEM

1 complaint

AIRBAG RECALL NOTICE MARCH 2017, STILL NO RESOLUTION. SEATS ADVERTISED AS LEATHER, NOT LEATHER INTERMITTENT GAS SMELL FILLS CABIN OF VEHICLE CAUSING RESPIRATORY ISSUES

Jun 21, 2018

ELECTRICAL SYSTEM,WHEELS,SERVICE BRAKES

1 complaint

MY VEHICLE WAS DAMAGED BY K AND H AUTO. THE ELECTRICAL UNIT IS MALFUNCTIONING, THE LIGHT IS BROKEN ON THE RIGHT SIDE, AND THE ROTORS AND BRAKES HAVE BEEN RUSTED, PLEASE HAVE SOMEONE ATTEND TO THIS MATTER. THANKS, AND HAVE A VERY BLESSED DAY. ANOTHER COMPANY BY THE NAME OF ANS TOWING, TOWED MY VEHICLE WITHOUT CARE AND I AM NOW HAVING ACCELERATION ISSUES WITH MY VEHICLE. THE VEHICLE WAS DRAGGED THROUGH WATER ON OCTOBER 17-18, 2018.

Feb 01, 2018

Fire: 1

AIR BAGS,ELECTRONIC STABILITY CONTROL (ESC),SERVICE BRAKES

1 complaint

TAKATA RECALL, NOT ACTION TAKEN IN A EFICCIENT TIME BRAKES 2017 ELEC STABILITY CONTROL 2013 AND 2017

Nov 26, 2017

ELECTRONIC STABILITY CONTROL (ESC)

1 complaint

SENSOR FOR SIDE VIEW MIRRORS CONTINUE TO MALFUNCTION PROVIDING INACCURATE INFORMATION AND LOCKING ON (LIGHT) AND NOT SHOWING WHEN NEEDED

Aug 17, 2017

SEAT BELTS

1 complaint

WHENEVER A PASSENGER IS SEATED IN THE REAR SEAT (EITHER SIDE) AND THE CAR IS BRAKED OR EXPERIENCES A BUMP IN THE ROAD, THE SEAT BELT LOCKS AND STARTS TO TIGHTEN THEREAFTER WITH A RATCHETING SOUND EACH TIME THE PASSENGER MOVES EVEN A LITTLE BIT. THIS TIGHTENING CONTINUES UNTIL THE PASSENGER STARTS SUFFOCATING FROM THE PRESSURE. WHEN THIS HAPPENS, THE ONLY OPTION IS FOR THE PASSENGER TO UNBUCKLE THE SEAT BELT AND START OVER. BUT THEN THE PROCESS REPEATS ITSELF. MY FAMILY MEMBERS NOW EITHER REFUSE TO RIDE IN THE BACK SEAT OR THEY DO NOT BUCKLE THE SEATBELT AND HOLD IT IN THEIR HAND INSTEAD. OBVIOUSLY THIS IS A SAFETY ISSUE THAT COULD RESULT IN SERIOUS INJURY IN CASE OF AN ACCIDENT. I HAVE TAKEN THE CAR TO 2 DIFFERENT DEALERS ON 4 OCCASIONS BUT EACH TIME THEY HAVE TOLD ME THAT THE SEAT BELTS ARE WORKING AS DESIGNED. I HAVE ASKED OWNERS OF 2 OTHER MERCEDES CARS OF SIMILAR MAKE AND MODEL AND THEY HAVE ASSURED ME THAT THIS PROBLEM DOES NOT HAPPEN IN THEIR CARS. I HAVE ESCALATED THIS ISSUE TO MERCEDES DIRECTLY BUT THEY HAVE REDIRECTED ME TO ONE OF THE DEALERS AND NOW I CAN'T EVEN GET THEM OR THE DEALER TO RESPOND TO MY EMAILS.

May 29, 2017

POWER TRAIN,ENGINE

1 complaint

GRADUALLY AS THE CAR IS ACCELERATING IT MAKES A TERRIBLE GRINDING NOISE AND SHAKES ALSO JERKS WHEN CHANGING GEARS, CONFIRMED IT IS A FAILED TRANSMISSION, THE CAR HAS HAD ALL THE APPROPRIATE MAINTENANCE JUST NOT AT A MB DEALER AND THERE IS A SERVICE BULLETIN ON THE TRANSMISSION JUST NOT OFFICIAL RECALL AND MERCEDES IS CLAIMING NO RESPONSIBILITY AS IT WAS NOT SERVICED AT MB DEALER SINCE 2014. CLEARLY THE SERVICE ANNOUNCEMENT IS RECOGNITION OF A PROBLEM

Feb 15, 2017

FUEL SYSTEM, GASOLINE,POWER TRAIN,ENGINE

1 complaint

THE CEL CAME ON AND THE ENGINE WAS HAVING A ROUGH START . I TOOK IT TO THE REPAIR SHOP AND AFTER USING THE STAR DIAGNOSTIC SYSTEM THE DIAGNOSES WAS CAMSHAFT ADJUSTERS IN FAILURE. THE REMEDY REPLACE THE CAMSHAFT ADJUSTERS. COST $3500.00. *TR

Jan 19, 2017

AIR BAGS,SEAT BELTS

1 complaint

TL* THE CONTACT OWNED A 2012 MERCEDES-BENZ C300. WHILE DRIVING AT AN UNKNOWN SPEED, THE CONTACT'S VEHICLE REAR ENDED ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY AND THE SEAT BELT PRETENSION DID NOT FUNCTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED AND TOWED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THERE WAS ONE INJURY THAT REQUIRED MEDICAL ATTENTION. THE CONTACT SUSTAINED SHORT TERM MEMORY LOSS, A SEIZURE, AND LIVER DAMAGE. THE CONTACT HAD TO REMAIN HOSPITALIZED FOR FIVE DAYS. THE FAILURE MILEAGE WAS 66,000.

May 19, 2016

Crash: 1

Injuries: 1

ELECTRONIC STABILITY CONTROL (ESC),FUEL/PROPULSION SYSTEM

1 complaint

CAR SHOWED SIGNS WELL BEFORE VEHICLE STARTED SHOWING CODES. WHEN I WOULD START IT UP THE VEHICLE SOUNDED LIKE A ROCKET SHIP WAS ABOUT TO TAKE OFF AND SHORTLY AFTER THE NOISE WOULD GO AWAY. WITH NO CODES MERCEDES TRIED REPLACING THE SOME AC PARTS BUT IT DIDN'T HELP. I JUST ASSUMED THE NOISE WAS HARMLESS IF MERCEDES SAYS NOTHING'S WRONG THAN IT MUST BE OKAY. THEN ONE DAY I WENT TO TURN THE CAR ON AND IT HESITATED MAKING ALL KINDS OF NOISE BUT ALWAYS STARTED AFTER HOLDING THE KEY IN THE ON POSITION AND PUSHING FORWARD. CAR SEEMS TO WORK WELL ONCE STARTED BUT I AM USING MORE GAS WHICH MIGHT BE RELATED.THE CHECK ENGINE LIGHT CAME ON AFTERWARDS AND WOULD TURN ITSELF OFF. AFTER BRINGING IT TO MERCEDES THEY STATE I NEED A NEW INTAKE VARIABLE CAMSHAFT ADJUSTOR AND IT'S A GOOD IDEA TO REPLACE THE EXHAUST AS WELL SINCE THERE'S NO CHARGE FOR ADDITIONAL LABOR SINCE THE EXHAUST ADJUSTOR IS GOING TO BE ACCESSIBLE. MY CAR IS AT 68,000 MILES AND WELL KEPT THIS IS A MECHANICAL ISSUE WITH MERCEDES IN MULTIPLE MODELS AND YEARS.

Sep 30, 2015

VEHICLE SPEED CONTROL

1 complaint

TL* THE CONTACT OWNS A 2012 MERCEDES BENZ C300. WHILE STOPPED AT A RED LIGHT WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE ACCELERATED EXTREMELY FAST INTO AN INTERSECTION. AS A RESULT, THE CONTACT'S VEHICLE WAS STRUCK BY ANOTHER VEHICLE ON THE FRONT DRIVER'S SIDE DOOR. THE CONTACT SUFFERED A BROKEN CLAVICLE, A BRUISED ANKLE, CHEST, AND BACK. MEDICAL ATTENTION WAS RECEIVED. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO THE POLICE IMPOUND LOT. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000. UPDATED 7/1/15*CN

Apr 30, 2015

Crash: 1

Injuries: 1

TIRES,WHEELS

1 complaint

I HAVE A MERCEDES BENZ C300 WITH 16,300 MILES ON IT. THE VEHICLE CAME WITH CONTINENTAL, CONTIPRO, 225/45 R17 91H TIRES ON IT TWO TIRES ON THE LEFT SIDE OF THE CAR HAVE DEVELOPED BUBBLES ON THEM AND WILL HAVE TO BE REPLACED. THE TIRES ON THE RIGHT SIDE WILL HAVE TO BE INSPECTED SINCE THEY MAY HAVE BUBBLES ON THE INSIDE. I HAVE JUST READ MANY COMPLAINS ABOUT THESE TIRES AND FEEL THEY ARE DANGEROUS AND SHOULD BE RECALLED. *TR

Mar 20, 2014

ENGINE AND ENGINE COOLING,FUEL SYSTEM, GASOLINE

1 complaint

ON MULTIPLE OCCURRENCES THE VEHICLE HAS STARTED TO MISFIRE AT RANDOM TIMES AND SPEEDS RANGING FROM 45-70 MPH RESULTING IN "LIMP MODE" OR A STALLING CONDITION. THE CHECK ENGINE LIGHT COMES ON, BUT WILL NOT BE ON WHEN THE VEHICLE IS RESTARTED. THE DEALERSHIP ON NO OCCASION HAS BEEN ABLE TO DUPLICATE MY CONCERN ALTHOUGH OTHERS HAVE BEEN IN THE CAR TO WITNESS. I FEEL VERY UNSAFE DRIVING THE VEHICLE AS WHEN IT STALLS ON THE HIGHWAY, I LOSE STEERING AND BRAKES AS WELL. *TR

Nov 11, 2013

VISIBILITY/WIPER

1 complaint

TL* THE CONTACT OWNS A 2012 MERCEDES BENZ C300. THE CONTACT STATED THAT THE WINDSHIELD WIPERS FAILED. THE VEHICLE WAS TAKEN FOR REPAIR AND THE BLADES WERE REPLACED HOWEVER THE CONTACT WIPERS WERE STILL FAILING. THE VEHICLE WAS NOT INSPECTED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE INCIDENT. THE APPROXIMATE FAILURE MILEAGE WAS 7,000.

Sep 16, 2013

ENGINE AND ENGINE COOLING,POWER TRAIN

1 complaint

THIS WAS NOT AN ACCIDENT, IT IS, IN MY OPINION, A POSSIBLE SAFETY PROBLEM WITH THE VEHICLE - TURBO LAG; THROTTLE LAG; TRANSMISSION LAG. I ALMOST HAD TWO ACCIDENTS DUE TO THE LAG PROBLEMS, AND HAVE ATTACHED A MORE DETAILED ANALYSIS FOR YOUR REVIEW. TURBO LAG: THIS IS THE TIME IT TAKES FOR THE CAR TO GO FROM ITS NATURALLY ASPIRATED POWER TO THE FULL POWER OF THE CAR AT FULL BOOST/ PEAK BOOST IS REACHED RELATIVELY LOW IN THE REVERSE RANGE, BUT IT IS NOT INSTANTANEOUS POWER LIKE A NATURALLY ASPIRATED ENGINE. THROTTLE LAG: THE DRIVE BY WIRE SYSTEM HAS A BIT OF LAG. UNDER CERTAIN CONDITIONS, I MEASURED IT AT .2 OF A SECOND OR SO. WHATEVER THE VALUE, THERE IS ALWAYS LAG THERE, AND WE ARE VERY SENSITIVE TO IT. HOWEVER, DRIVING INS MODE VS E MODE DOES MAKE SOMEWHAT OF A DIFFERENCE. NONETHELESS, THE CAR ALWAYS STARTS OUT IN E MODE WHEN I GET IN AND START THE CAR. WE DIDN'T PURCHASE THE CAR TO ALWAYS DRIVE IN S MODE. TRANSMISSION LAG: THIS I NOTICE SIGNIFICANTLY AND IT IS, IN MY OPINION, PROBABLY THE MOST ANNOYING TO ME. YOU'LL NOTICE THIS WHEN STOMPING THE PEDAL TO THE FLOOR AND THEN DOING THE WAIT... WAIT... WAIT.. DOWNSHIFT. EVEN IF THIS ENGINE WAS RUNNING ONLY ON ITS NATURALLY ASPIRATED FOUR CYLINDERS, THE TRANSMISSION SHOULD RESPOND IMMEDIATELY TO A SURE FOOTED STOMP TO THE FLOOR WITH THE QUICKNESS, AS DOES MY FOUR CYLINDER RAV-4. HOWEVER, THE MB C-250 DOES NOT! IN MY OPINION, YOU CAN RESET THE TCU ALL YOU WANT, THE DELAY WILL REMAIN.

Oct 19, 2012

EXTERIOR LIGHTING,ELECTRICAL SYSTEM

1 complaint

TL* THE CONTACT OWNS A 2012 MERCEDES BENZ C250. WHILE DRIVING, THE TURN SIGNAL WAS ACTIVATED WHEN A WARNING INDICATOR LIGHT SLIGHTLY ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR INSPECTION, WHERE THE CONTACT WAS ADVISED THAT THE DIMNESS OF THE TURN SIGNAL WAS COMMON FOR THE MODEL YEAR VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE FAILURE MILEAGE WAS 320. UPDATED 07/25/12*LJ THE CONSUMER STATED THE PROBLEM WAS WITH THE TURN SIGNAL CONTROL LIGHT. IT WAS HARDLY VISIBLE IN THE DAY LIGHT AND IN THE SUN. THE SERVICE DEPT STATED THE NEW MODEL HAS A NEW ELECTRONIC DASH WHICH COMES IN ONE NEW CIRCUIT PANEL . UPDATED 07/25/12

May 04, 2012

2012 MERCEDES-BENZ C-Class Problems & Complaints

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