2018 MERCEDES-BENZ C-Class Problems & Complaints
Real owner complaints and problems reported to the National Highway Traffic Safety Administration (NHTSA). View common issues by component.
VIN Decoder
119
Complaints Reported
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Complaints by Component
ENGINE
27 complaints
My vehicle only had 31,000 miles and I experienced engine failure. I bought a new engine for 16, 500. 00 dollars. Mercedes Benz did nothing. I almost got in to several accidents because the engine completely stop on the interstate. Almost got hit by several cars. This is unacceptable.
Oct 23, 2025
I need the Crankcase ventilation valve replaced and have heard many complaints about this repair.
Aug 02, 2024
P052E positive crankcase ventilation regularly valve
Jun 23, 2024
Car needs an engine rebuild at 90K miles due to a cracked piston #1, a problem with a car that received regular oil change intervals and proper service should not have
May 27, 2024
Very common problem on all Mercedes - code P052E - second time on this car. Engine light, 2nd time on this car. Car is 2018 and has 45k miles. First time it was at 28037 miles. This is a MAJOR issue costing consumers $1500-$2500 to repair and needs a recall from manufacturer
Apr 23, 2024
+ 22 more complaints for this component
UNKNOWN OR OTHER
16 complaints
Rearview Camera is not displayed when the vehicle is placed in reverse. The display shows a black screen. A Recall Notice has been published for other vehicles of the same year, make, and model. The failure of the Rearview Camera results in safety risks during normal use of the vehicle.
Oct 08, 2025
I was driving around my neighborhood one day with my panoramic sunroof open and at the red light i wanted to close the sunroof (california summer sun is no joke) and it made this really big 'THUMP' noise, thought the sunroof glass cracked. After the big THUMP noise, the sunroof wouldnt close and this is after the light turned green so i am driving slowly because there was rattling noise coming from the sunroof and didnt want the sunroof to fly out from the car. So i had to pull over and try to figure out if its okay to drive with stuck sunroof with it rattling noise. after that i tried to close and open the sunroof and wouldnt move or do anything, it was just stuck. So i turned my hazzards on then drove slowly back home. after about 30 mins playing with sunroof in my garage, hoping that i will close (then at least i can still drive my car without being scared that it will fly out from my car), finally go it to closed but now it doesnt work at all. then i have found out that from 2014 to 2018 pano sunroof is known issue and there were safety recall on some pano sunroof already on this model. i called 6 places and they told me (besides from how many they had already repaired) the holder on the sunroof rail is broken so the whole rail assy needs to be replaced. imagine if i was on a freeway going 65+ and if this would have happend and this HUGE pano sunroof flew out from my car... this is very big safety issue and that probably why 2017 (same pano sunroof) was on a recall.
Jul 07, 2025
Was sold Car Feb,27,2024 from dealership the car violently vibrates at 60mph took it to 3 Repair shops
Jun 25, 2024
Sun roof not opening. Mechanic notified me that this is a known issue, but no recall at this time.
Mar 13, 2024
There are Water intrusion that happened to other Model of Mercedes, my car have the same problem, when i bring it to the Mercedes dealer, they found a lot of water inside the trunk, but they insisted that I had accident, but there no accident that I know of.
Feb 07, 2024
+ 11 more complaints for this component
STEERING
10 complaints
car has less than 34,000 miles on it. One day went to drive and the vehicle wouldn't turn and an error message popped up "power steering malfunction, check owners manual" Had it towed to dealer and they said they couldn't find anything wrong with it. According to the dealer, no sign of wear and tear, no physical damage,
Sep 09, 2024
The contact owns a 2018 Mercedes-Benz C300. While driving at various speeds, the contact could hear an abnormal sound from the transmission. The vehicle was taken to a local independent mechanic where it was diagnosed that the rack and pinion needed to be replaced. The vehicle was not repaired. The vehicle was then taken to a local dealer for diagnosis, but the failure could not be replicated. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 57,000.
Aug 22, 2024
I RECEIVED A LETTER FROM MERCEDES-BENZ USA, LLC IN JANUARY 2019 REGARDING A RECALL INVOLVING A LOCKNUT IN THE STEERING RACK WHICH MIGHT HAVE INTERNAL MATERIAL CRACKS AFFECTING MY MAKE/MODEL/YEAR OF CAR. I HAVE SINCE PERIODICALLY CHECKED THE WEBSITE (WWW.MBUSA.COM/RECALL) FOR A SOLUTION TO REMEDY THIS ISSUE, BUT TO DATE (7/16/19) IT IS STILL LISTED AS AN ON-GOING SAFETY RECALL: "RECALL INCOMPLETE. REMEDY NOT YET AVAILABLE." AS THE RECALL LETTER STATES, "IN CERTAIN DRIVING SITUATIONS INVOLVING LOW-SPEED MANEUVERS, LARGE LATERAL FORCES COULD CAUSE THE LOCKNUT TO BREAK. AS A RESULT, THE STEERING COULD FAIL WHICH WOULD INCREASE THE RISK OF A CRASH." IT IS QUITE DISCONCERTING THAT A RECALL WHICH COULD POTENTIALLY HAVE SAID AFFECT HAS STILL NOT BEEN REMEDIED IN OVER 7 MONTHS.
Jul 16, 2019
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBER: 18V850000 (STEERING). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF SAN DIEGO (4750 KEARNY MESA RD, SAN DIEGO, CA 92111, (858) 295-3136) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *TT *TR
May 30, 2019
TL* THE CONTACT LEASES A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V850000 (STEERING). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE CONTACT CALLED MERCEDES-BENZ OF DAYTONA BEACH AT (386) 675-4677 (LOCATED AT 1188 N TOMOKA FARMS RDM, DAYTONA BEACH, FL 32124) AND WAS INFORMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. *JS
Feb 20, 2019
+ 5 more complaints for this component
STRUCTURE
7 complaints
The contact owns a 2018 Mercedes-Benz C300. The contact stated that while driving approximately 60 MPH, a part of the panoramic roof towards the driver's side detached from the vehicle. The contact pulled over to inspect the vehicle. The part was no longer attached, and the contact had to continue driving. The failure caused additional electrical failures due to water entering the cabin of the vehicle. The contact stated that the sunroof failed to open, and the infotainment center was inoperable. The contact found information on NHTSA Campaign Number: 23V854000 (Structure); however, the VIN was not included. The vehicle was taken to the dealer, who related the failure to the recall; however, the vehicle could not be repaired under the recall because the VIN was not available. The vehicle was not repaired. The manufacturer was informed of the failure and opened a case. The manufacturer confirmed that the VIN was not included in the recall. The manufacturer referred the contact to the NHTSA Hotline to file a complaint. The failure mileage was approximately 109,000.
Aug 19, 2025
The contact owns a 2018 Mercedes-Benz C300. The contact stated that after washing the vehicle, the contact became aware that the adhesive attaching the rear window to the convertible top had started to detach. Upon further inspection, the contact became aware that water had seeped into the vehicle through the crack. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed. The contact was also informed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 49,000.
Jun 04, 2025
Problem a recall was done on certain Mercedes vehicles where the front panel of the roof between the panoramic sunroof and windshield has defects in gluing or bonding agent from the manufacture. I believe my vehicle is showing possible premature bonding agent issues below the surface of panel. Where the manufacture bonding glue is causing interior flaking and cracking and lifting from the stress of the wrong/incorrect specified bonding material not used during the manufacturing process . I am afraid that while driving my vehicle at highway speed has the opportunity / potential for my panel to eventually break off and cause damage of flying panel pieces to harm myself or other vehicles traveling on the road. I believe the wrong bonding material is also causing other issues with the panel and the workmanship material used. My vehicle falls under the year, make, W222 and I am already seeing issues with my panel that by being proactive on my vehicle then reactive. I don’t want to wait for my panel to fly off when early detection and rectification is the safest way/option. My second concern is that there has already been changing dates on this recall information sent out in 2017, 2019 and now 2021. I am worried!!
Sep 12, 2024
The contact owns a 2018 Mercedes-Benz C300. The contact stated while driving at approximately 65 MPH, there was a windy sound coming from the front of the vehicle. The contact then noticed the sound of an impact on the rear driver's side of the vehicle. The contact pulled to the side of the road and noticed that the front roof panel had separated and had struck the rear driver's side of the vehicle above, the wheel. The contact was able to continue driving. The vehicle was taken to an unknown dealer, where it was determined that the failure was related to NHTSA Campaign Number: 23V854000 (Structure) however, the VIN was not included. The dealer informed us that the repair would be an out-of-pocket expense. The insurance company towed the vehicle to an independent mechanic for the repair. The vehicle was being repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was unknown.
May 03, 2024
The contact owns a 2018 Mercedes-Benz C300. The contact stated while attempting to close the sunroof, the sunroof failed to close properly. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V197000 (Structure) but the VIN was not included. The manufacturer was notified of the failure, and a case was opened. The failure mileage was 45,000.
Oct 25, 2023
+ 2 more complaints for this component
ENGINE,FUEL/PROPULSION SYSTEM
5 complaints
The engine light is on with only 35000 miles. Upon using an OBD2 scanner, error code P052e positive crankcase ventilation(PCV) malfunction was detected. It's a problem that I researched and noticed a lot of people having the same issue. I was told that this can cause the car to stall or shut down? This causes serious risk and safety issues to drivers, passengers, and pedestrians. With so many complains about this problem, I believe the manufacturer and dealers should take responsibility before tragedies happen.
Feb 03, 2025
Check engine light came on. Had a diagnostic check and was told that the crankcase ventilation sensor needs to be replaced which will cost $1200.
Jul 26, 2023
The code I received is p052e from the check engine light. This can cause the car to stall out mid way through driving and cause a potential fatal accident. This is a common issue across C300 And GLC benz.
Apr 30, 2023
at 67000 miles the check engine light came on and is was engine code p052e crankcase ventilation regulator valve failure. This failure will cause the ending to exhaust increased contaniments in to the air. This is a know problem by MBUSA and they have changed the part design on new vehicles , this problems comes up right after the cars warranty and they cost to repair is in excess of $2500. For this to be an emission know problem by MBUSA a recall should be issued and this problem corrected under the recall process of the NHTSA ASAP. This has been reported to MBUSA and they have been zero help in this matter. The NHTSA is here to protect our citizens and environment and hopefully you will continue to do so.
Feb 21, 2023
Failed positive crankcase ventilator after 40,000 miles common problem regulating oil consumption to the engine. Causing oil burn, oil leak, inconsistent oil ventilation. Dealer is aware of the problem. Engine light is on with code P052E. Commonly reported problem for this model on the internet.
Feb 21, 2023
ELECTRICAL SYSTEM,COMMUNICATION
5 complaints
The contact owns a 2018 Mercedes-Benz C300. The contact stated that after starting the vehicle, the S.O.S. Not Active message displayed. The contact was concerned that in the event of an emergency, the emergency services function would be inoperable. The vehicle had previously been serviced under NHTSA Campaign Number: 21V058000 (Electrical System, Communication) however, the failure recurred. The dealer was made aware of the failure; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 85,000.
Mar 10, 2023
The contact owns a 2018 Mercedes-Benz C300. The contact stated that the SOS warning light was illuminated. Upon testing the SOS system, the contact stated that the system failed to operate as needed. The contact then received notification of NHTSA Campaign Number: 22V365000 (Electrical System, Communication). The vehicle was taken to the dealer for service, however, the failure persisted. The vehicle was taken back to the dealer on multiple occasion for multiple repairs related to the failure. Recently, the contact was informed that the Hermes control unit was defective. The manufacturer was notified of the failure and the contact was informed that the repair cost was not covered. The vehicle was not repaired. The failure mileage was unknown.
Jul 21, 2022
The contact owns a 2018 Mercedes-Benz C300 4matic. The contact received notification of NHTSA Campaign Number: 21V058000 (Communication, Electrical System) however, the part to do the recall repair was not yet available. The local dealer was contacted and stated that the equipment needed to perform the repair was not available. The manufacturer was contacted and informed the contact that the repair was an over-the-air software update. The vehicle was not yet repaired, nor was there any way to confirm that the software update was completed. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that the START/STOP feature failed to perform as designed. The rear windows failed to raise and lower as needed. The contact took the vehicle to the dealer to be repaired. The exact repairs were unknown. The approximate failure mileage was 49,000.
May 27, 2021
The contact owns a 2018 Mercedes-Benz C43 AMG. The contact received notification of NHTSA Campaign Number: 21V058000 (Communication, Electrical System) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The contact had not experienced a failure. Parts distribution disconnect.
May 24, 2021
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 21V058000 (COMMUNICATION, ELECTRICAL SYSTEM) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT YET AVAILABLE. THE CONTACT STATED THAT MERCEDES-BENZ OF SAN FRANCISCO (LOCATED AT 500 8TH ST, SAN FRANCISCO, CA 94103, (415) 673-2000) EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. ## VIN PASSED ## MERCEDES-BENZ 2018 C300A ##*DT
Apr 23, 2021
TIRES
4 complaints
In August 2024, a Mercedes-Benz dealership in Salisbury, MD installed the wrong type of rear tires on my vehicle. I was not informed they were mismatched or inappropriate for my vehicle. I later drove across the country with my infant child in the backseat, believing the tires were new and safe. On April 17, 2025, a certified tire shop in Texas (Discount Tire) inspected the tires and told me they were not suitable for my car and were already too old to be considered new — despite having been installed just 8 months earlier. They refused to buy them back or reinstall them due to the age and mismatch. Additionally, the dealership had earlier failed to correctly diagnose my ABS system, citing water damage but doing no further inspection. They also missed a major coolant leak and water pump failure, despite charging me for multiple diagnostics. Their negligence in both diagnosis and tire installation directly put me and my child at serious safety risk, especially while traveling long distance at highway speeds.
May 28, 2025
I WAS DRIVING ON HIGHWAY 1, AT ABOUT 45 MPH, ON MY WAY TO WORK IN A LIGHT RAIN. I MAY HAVE JUST TRANSITIONED INTO THE #1 LANE OF TRAFFIC AS I WAS ABOUT 500 FEET FROM THE RED LEFT TURN SIGNAL LIGHT WHERE I MAKE MY NORMAL TURN. I JUST REMEMBER MY CAR SUDDENLY HYDROPLANED ACROSS THE DOUBLE YELLOW LINE INTO THE ONCOMING LANES OF TRAFFIC AND HITTING THE OPPOSITE SHOULDER OF THE ROAD. MY CAR ENDED UP IN A DITCH. LUCKILY IT HAPPENED AT ABOUT 0630 IN THE MORNING AND NO ONE WAS INJURED AS THIS IS A BUSY ROADWAY. THE TOW TRUCK DRIVER NOTICED THAT THE CENTER TREAD AREA OF MY TIRES WAS BALD, BUT THE OUTER TREAD STILL HAD TREAD ON IT. I BOUGHT MY CAR BRAND NEW 14 MONTHS AGO FROM MERCEDES. ONLY MY WIFE AND I HAVE DRIVEN IT. THE CAR ONLY HAS 16,000 MILES AND THE TIRES SHOULD NOT BE IN THIS CONDITION. I BROUGHT IT BACK TO MERCEDES AND THE SERVICE MANAGER SAID THEY SEE THIS A LOT WITH THESE TIRES, WHICH SHOULD ONLY LAST 12,000 MILES! THIS IS ABSOLUTE NONSENSE. AND IT DOES NOT MATCH THE TIRE MANUFACTURERS CLAIM ON THEIR WEBSITE. IN THE MERCEDES SERVICE AREA IS A 3D DISPLAY SHOWING HOW LOW TREAD CAUSES HYDROPLANING! I CONTINUE TO DRIVE THIS SAME STRETCH OF ROAD TO WORK. I NOW NOTICED IT IS ACTUALLY ON A SLIGHT INCLINE, AND THERE IS NO AREA WHERE WATER WOULD POOL, CAUSING ME TO HYDROPLANE. I BELIEVE THERE IS A SERIOUS DEFECT IN THESE TIRES. HAD CIRCUMSTANCES BEEN SLIGHTLY DIFFERENT (CLOSER TO BIG TREES, HAD I BEEN GOING FASTER, HAD THERE BEEN PEDESTRIANS, HAD THERE BEEN OTHER CARS ON THE ROADWAY) THIS COULD HAVE BEEN A FATAL OR VERY SERIOUS INJURY COLLISION. CHP & FIRE ARRIVED ON SCENE, BUT I DID NOT REQUEST A POLICE REPORT. THERE IS A RECORD IN THEIR DISPATCH CALL.
Dec 29, 2019
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C63S EQUIPPED WITH MICHELIN PILOT SPORT TIRES, SIZE: 285/30/ZR19 (NA). THE CONTACT STATED THAT THE FRONT PASSENGER TIRE BLEW OUT WHILE DRIVING 60 MPH. THE CONTACT PULLED THE VEHICLE OVER TO THE SIDE OF THE ROAD WHERE IT WAS TOWED TO MERCEDES-BENZ OF CHANTILLY. THE DEALER STATED THAT THE TIRE WAS NOT COVERED UNDER WARRANTY. THE TIRE WAS REPLACED AT THE CONTACT'S EXPENSE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE FAILURE MILEAGE WAS APPROXIMATELY 16,077 AND THE TIRE FAILURE MILEAGE WAS 15,000. THE DOT NUMBER WAS NOT AVAILABLE.
Oct 16, 2019
2 BLOWOUTS, 1 TIRE SHREDDED, 1 VALVE STEM LEAK. BLOW OUT AT 11, 800 MILES.
Apr 15, 2019
POWER TRAIN
3 complaints
I have a 2018 Mercedes Benz c63 amg which I purchased new in 2018. I have only 61,230 miles yesterday 11/10/2025 it started making a loud noise coming from the right rear. I drove to the Mercedes dealership in Belmont,Ca the technician mechanic told me that the rear differential was bad and need to be replace. Cost $7,000. I don't understand only 61,230 miles why did it go out so soon I always had the maintenance done. My warranty has expired. I did some research and found that there was a recall for 2018 Mercedes Benz c63 amg related to the rear differential. The recall was issued due to potential issues with the rear differential that could lead to a loss power to the rear wheels, increasing the risk of a crash. Owners were advised to contact their local dealerships for repairs or replacements as necessary.
Nov 19, 2025
Error Code P052E Positive Crankcase Ventilation Regulation Valve Performance
Jan 24, 2023
NEW VEHICLE WITH UNDER 1000 TOTAL MILEAGE. INTERNAL PRESSURE CONTROL VALVE IN TRANSMISSION FAILED CAUSING MAJOR DAMAGE TO TRANSMISSION WITH METAL SHAVING FOUND IN TRANSMISSION PAN. TRANSMISSION AND FAULTY VALVE NEEDED TO BE REPLACED UNDER WARRANTY.
Oct 16, 2018
SEAT BELTS
3 complaints
I have noticed the driver seat belt not retracting after usage. Upon looking online I saw a post about a recall. Called local Benz dealership and BenzUSA customer service both said my Vin is not part of the specified recall.
Sep 26, 2025
The contact owns a 2018 Mercedes-Benz C300 4Matic. The contact stated that the front passenger's and driver's side seat belts had failed to retract and return to the stowed position. The contact related the failure to NHTSA Campaign Number: 21V032000 (Seat Belts); however, the VIN was not included. The dealer was notified of the failure and informed the contact that there would be a cost for a diagnostic test. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 59,000.
Jan 23, 2025
Mercedes-Benz C-Class convertibles from the 2017 to 2021 model years are being recalled because the seat belts might not comply with federal Occupant Crash Protection standards. The problem is that the front seat belts might not fully retract to their stowed position because of the geometry of the front seat belt retractor. The dealers are refusing to fix this issue.
Jun 14, 2022
VISIBILITY
3 complaints
The contact owns a 2018 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the rear window glass which was not properly bonded had become loosened. The vehicle was not diagnosed or repaired. The VIN was not included in NHTSA Campaign Number: 18V608000 (VISIBILITY). The manufacturer was not notified of the failure. The failure mileage was 50,000.
Sep 30, 2024
The contact owns a 2018 Mercedes-Benz C300. The contact stated that the rear windshield had detached from the vehicle. The vehicle was taken to the dealer, where it was diagnosed that the windshield bonding had detached and needed to be responded. The vehicle was not repaired. The manufacturer was made aware of the failure but informed the contact that the VIN was not included in NHTSA Campaign Number: 18V608000 (Visibility). The failure mileage was approximately 70,000.
Dec 12, 2023
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE EXTERIOR LEFT REARVIEW MIRRORS FAILED TO PROVIDE THE APPROPRIATE VISIBILITY. OBJECTS APPEARED AS THE MIRROR READS TO BE CLOSER ARE FURTHER AWAY, WHICH IMPACTED THE DRIVER. THE DEALER WAS CONTACTED. THE MANUFACTURER WAS NOTIFIED. THE FAILURE MILEAGE WAS NOT AVAILABLE. IT FAILS EVERYDAY.*BF CONSUMER STAED THE RIGHT SIDE MIRROR SAY OBJECTS MAY BE CLOSER IT'S ALWAYS BEEN TRUE UNTIL 2018- NOW THE MIRROR SHOWS CARS FURTHER AWAY. THE REAR VIEW AND LEFT SIDE MIRROR IS ACCURATE. CONSUMER DOES NOT USE SIDE MIRROR.*JB
Apr 03, 2019
ELECTRICAL SYSTEM,UNKNOWN OR OTHER
3 complaints
According to the dealership, if the car is not started every 3 days, it will shut itself down. The car was towed 6 times, I'm a business woman, my coworkers, friends drives Mercedes Benz, and no one have heard of any such issues. Any cheaper cars, after 2 weeks at the airport, the car starts. Something is wrong with the car, something is draining the car battery if not started every 3/ 4 days. They are taking advantage to the fact, that I'm a female and older. They need to replace the car, fix, or junk their car. Someone needs to take responsibility for the repair of the car.
Sep 06, 2023
The sunroof on the vehicle jams and either stays partially open or won’t close in the rear completely. I finally got it to close but it will not open again. I know multiple mercedes owners who have this issue with the sunroof and if the sunroof will continue to not lock properly this could be a hazard on the highway if the brackets were to break and the glass slides off.
Jan 06, 2022
To Whom It May Concern, I bought this certified preowned Mercedes Benz, and the recall is open. I have taken the car to the dealership, they deny me from service because its an over the air recall. The Mercedes Benz website clearly states on their letter for consumer that the remedy for this recall can be taken care at the dealership free of charge or an over the air update. Its July and I got the car back in February.
Jul 08, 2021
AIR BAGS
3 complaints
TL* TAKATA RECALL. THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 18V850000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF COCONUT CREEK (LOCATED AT 4250 FL-7, COCONUT CREEK, FL 33073, (954)406-1167) WAS CONTACTED AND CONFIRMED THAT THE PART WAS NOT AVAILABLE. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
Aug 19, 2019
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300W. THE CONTACT STATED THAT THE VEHICLE WAS REPAIRED PER NHTSA CAMPAIGN NUMBER: 18V838000 (AIR BAGS) BY MERCEDES-BENZ OF ARCADIA (101 N SANTA ANITA AVE, ARCADIA, CA 91006, (626) 701-8904). HOWEVER, THE AIR BAG WARNING INDICATOR ILLUMINATED AFTER THE REPAIR. THE DEALER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED A SECOND TIME. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 10,000.
Mar 13, 2019
APPARENTLY THERE IS A RECALL SITUATION THAT INCLUDES MY VEHICLE AND MERCEDES BENZ WASN'T ABLE TO SOLVE IT YET. I BOUGHT THE CAR AFTER THE RECALL HAS BEGAN.
Dec 12, 2018
FUEL/PROPULSION SYSTEM
2 complaints
Positive crankcase ventilation assembly replacement. Pollutes the environment.
Feb 01, 2024
This particular model of vehicle has a well-known and documented failure of the PCV valve (Crankcase). This has not been identified by NHTSA to date. This should be considered for a recall due to the high incident rate of the P052E error code (valve failure) as this causes reduced emission control and possible explosions within the engine due to pressure-related issues. My vehicle did not have any warnings prior to the engine light illuminating. After diagnostics, P052E was identified. Dealership told me that it needed to be replaced as it would fail and result in damage.
May 25, 2023
STEERING,AIR BAGS
2 complaints
While driving in a curved onramp connecting from one street to another the vehicle experienced a complete loss of steering ability which resulted in the vehicle continuing to move straight, off the pavement, and into a wall. The vehicle bounced off of the wall and loss of steering ability continued and the vehicle could not be controlled, crossed the road, went over a guardrail, and down an embankment until it came to a stop (approx 100ft). The vehicle engine never turned off until it came to a stop at which point the vehicle was manually turned off. No airbags deployed. There were no warning lights or signals of failing components prior to the loss of steering. An initial review by the body shop states that the vehicle is a total loss. The vehicle has been meticulously dealer maintained since the time of delivery as a new vehicle. The vehicle is pending inspection by Mercedes-Benz and by the insurance representative. The issue appears to be the same as those recalls described by NHTSA campaign number 18V872000 and/or 18V850000. The vehicle was never included in either of those recall campaigns. The vehicle is available for inspection upon request, but Mercedes-Benz is picking up the vehicle to perform its inspection.
Jul 08, 2021
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300W. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 18V850000 (STEERING) AND 18V838000 (AIR BAGS). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF ORANGE PARK (7018 BLANDING BLVD, JACKSONVILLE, FL 32244, (904) 777-5900) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE AND PARTS DISTRIBUTION DISCONNECT, RESPECTIVELY.
Mar 20, 2019
WHEELS
2 complaints
THE VEHICLE HAD A FRONT PASSENGER SIDE CRACKED RIM AND DAMAGED RUN FLAT TIRE.
Apr 21, 2021
I HAVE OWNED THE CAR FOR ABOUT 14 MONTHS AND DRIVEN JUST OVER 10,000 MILES DURING THAT TIME. I HAVE NOW HAD MY FIFTH FLAT OR DAMAGED FRONT TIRE SINCE OWNERSHIP OCCURRING ON BOTH DRIVER SIDE AND PASSENGER SIDE. THE DEALER REPLACES THE TIRE, WITH THE OEM REPLACEMENT, FIRST AT MY COST OF AROUND $400 EACH AND THEN EACH SUBSEQUENT TIME FOR $35 UNDER THE INCLUDED ROAD HAZARD WARRANTY. I HAVE CONTACTED THE DEALER AND MBUSA ABOUT THIS REOCCURING ISSUE WHICH THEY STATE IS NOT UNDER RECALL AND IS AN ISSUE WITH THE TIRE MANUFACTURER. HOWEVER, I FAIL TO SEE HOW THEY ARE NOT RESPONSIBLE BECAUSE THEY CHOSE THE OEM TIRE SUPPLIER. IN EVERY CASE EXCEPT ONE, THE TIRE ISSUE WAS CAUSED BY A RELATIVELY SHALLOW POT HOLE OR PAVEMENT DEFECT. THE ONE EXCEPTION WAS WHEN I CAME IN CONTACT WITH A MORE SUBSTANTIAL POT HOLE AT NIGHT (I DIDN'T SEE IT) AND THE TIRE BLEW OUT COMPLETELY AND I HAD TO ABANDON THE CAR OVERNIGHT UNTIL THE DEALER COULD TOW IT THE NEXT DAY. ONE TIME, THE CAR WAS TRAVELING AT HIGHWAY SPEEDS, BUT OTHER TIMES IT WAS ON BACK ROADS AT SPEEDS OF NO MORE THAN 35-40 MPH. THE TIRES ARE RUN FLAT TIRES AND THE CAR HAS NO SPARE SO I AM RELUCTANT TO DRIVE AT NIGHT AND DEFINITELY CANNOT TAKE ON ANY TRIPS FOR FEAR OF GETTING STRANDED.
Jan 21, 2019
BACK OVER PREVENTION
1 complaint
I recently purchased a 2018 Mercedes C300 and I noticed the rear view camera will not show an image. It mechanically will open and all other cameras are fully functional but the image will not show instead I see a icon of a camera in a red crossed circle. When doing VIN serch on my vehicle I don't see any open recalls. However, I noticed that NHTSA campaign number 22V232000 has recalled this exact issue. Although the report 573 says for it applying to 2019 models but with a production date between 2017 to 2021 vehicles applying. So I believe this recall should also apply to my vehicle.
Mar 10, 2025
FUEL SYSTEM, GASOLINE
1 complaint
The contact owns a 2018 Mercedes-Benz C300. The contact stated that while the vehicle was parked inside the garage, there was a strong fuel odor inside the garage. The contact stated that there was fuel leaking from the vehicle. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 52,300.
Feb 12, 2025
LATCHES/LOCKS/LINKAGES
1 complaint
The contact owns a 2018 Mercedes-Benz AMG C63. The contact stated while attempting to refuel the vehicle, the fuel tank door would not open unless the excessive force was used. The failure occurred on several occasions. The vehicle was taken to a local dealer where it was diagnosed that the fuel tank door failure was a known manufacturing failure. The fuel tank door was replaced by the dealer on several occasions but the failure recurred. The vehicle was temporarily repaired with wiring to prevent the fuel tank door from closing. The manufacturer was made aware of the failure. The failure mileage was approximately 20,000.
Aug 06, 2024
UNKNOWN OR OTHER,ENGINE
1 complaint
The day after I purchased my c300, the engine light popped on. I went back to dealer and they said it was a recall because of a crank case (PCV). I was upset because they never said anything about it. This was April of 2024. Note:(This Dealer was not Ray Catina’s of Edison). I went to Ray Catina’s in Edison for them to inspect car and I have been calling because I was told it was a national recall and it was on back order and should be here in June. It is now almost August and I called on the 23rd of July and received a call from Ray Catena on the 24th for them to tell me that “they were told that the new plan from Mercedes is to bring my car in and they will clear code. That’s what they are told to do.” To me, this is NOT fixing the issue. I am a little aggravated because I bought my car on [XXX] and have NOT been able to feel good because not sure what ramifications will come with me driving my car with this issue. I was told that driving with this engine light on and code that it will not harm my car. They now say Mercedes was told to reset the code and that will resolve issue? I believe this is a band aid not a fix!!! I’m a little upset. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Jul 27, 2024
ELECTRICAL SYSTEM,STRUCTURE,FORWARD COLLISION AVOIDANCE
1 complaint
I am wanting to add information to my original complaint. Tracking#11589822 When I called in the electrical issue to AAA the agent said this is a common problem on these cars. Next, I want to add photos the Mercedes of Fresno service department sent me during the 2nd time my car was taken in to be checked. I honestly don't remember off hand when the collision occurred, I have that paper work somewhere. I will find it and send it in also. I will also get paper work from the auto body place that fixed as much of the wiring that it could. There was also a video on line I will try to find again and send that in.
Jun 02, 2024
STRUCTURE,FORWARD COLLISION AVOIDANCE
1 complaint
While I was driving to work in a heavy rain my abs malfunction light came on in my car. I decided to take it to the Mercedes-Benz dealership in Fresno. They said it was the ABS module that needed to be replaced. After being in the shop for almost 3 weeks they said it was fixed. When I went to pick it up, the moment I turned it on the ABS malfunction light came on again. I was told that it was okay to drive and they would have somebody come check it out at my work the next day. My car went back into the shop for another week and they could not figure out what was wrong with it. They did take pictures and the second time I took it in they noticed a bunch of water underneath the floorboard. By this time, I had lost confidence in them fixing my car the manager basically kicked me off the lot and told me never to go back again. So I continued to drive my car since I was told it was okay first time they fixed it. Short while later, I rear-ended another car. The ABS system did not warn me that I was too close. When I took my car in to get the body work fixed I was also given a name of somebody who would be able to fix the electrical problems and insurance would pay for it. He was able to fix the ABS system but could not find where the short was that controlled the passenger seat and the driver side back seat window and for the needle that tells me if my car is overheating. Nobody could figure out where the water had been coming from. It wasn't until recently when we just had a heavy storm that I noticed water leaking from inside the car through a seam. The running boards on the top of my car were not installed correctly so water seeps in there during rains and then it travels down underneath my floorboards and sits which was the cause of the shorts in my electrical system. My concern is that I don't know how bad other components of the car might be that one of the wires might at any of the wires might short while I'm driving now but unable to download receipts which I have
May 21, 2024
ELECTRICAL SYSTEM,EXTERIOR LIGHTING
1 complaint
The contact owns a 2018 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, there was a message was displayed that there was a light bulb malfunction. The contact stated that the rear turn signal lights and brake lights were not operating properly. Additionally, the contact stated that the fuel door failed to operate properly, and occasionally opened independently while driving. The vehicle was taken to a local dealer, where it was diagnosed and determined that the cause of the electrical issues was water in the spare tire compartment. The vehicle was not repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 52,800.
Jan 11, 2024
ELECTRICAL SYSTEM
1 complaint
Hello My c300 2018 only have 79k and suddenly the engine light on, when I check it show that I need Positive Crankcase ventilation valve replace. it cost $2300. As I know a lot of people who own Merced have the same problem so should have a recall for that Thanks
Aug 24, 2023
VISIBILITY/WIPER,STRUCTURE
1 complaint
Incorrect bonding of the rear window. The rear window bond is failing which is causing the window to detach from the convertible top. The bonding is failing in many different locations, causing not only detachment, but the failure is also causing fine hairline cracks at the points of failure. The dealership refused to correct the defect, informed I would have to pay $3,000.00 to correct the failure of the bonding.
Aug 12, 2023
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM
1 complaint
My c300 2018 only has 50k and suddenly the engine light is on, when I check it shows that I need the Positive Crankcase ventilation valve replaced. it cost $2300. As I know a lot of people who own Mercedes have the same problem. Three mechanics claim it on almost all C, CLA, and GLA models. Please make Mercedes recall it finally.
Jul 23, 2023
STRUCTURE,UNKNOWN OR OTHER
1 complaint
This is 2018 Mercedes Benz - C300 and it seems across this model line up and models from that year it looks like headliner particularly fabric starts to separate from the pillars in the rear. Across google there is bunch of C300 with the same issue in the same spot starting. The Car is only 5 years old and if it would be any other brand I would not be to upset about it. But this is Mercedes and they pride themselves of being a " Luxury " Vehicle where their standards should be much higher. Needles to say we contacted and went to one of the Mercedes Dealership that we got charged $226 for the inspection and Mercedes did not honored to replace the defect nor MBUSA - did not helped either. This is the problem across the model . Be AWARE and take this into consideration when thinking of purchasing this particular model year C300.
Jan 29, 2023
EXTERIOR LIGHTING,WHEELS
1 complaint
Headlight is out and there is no replacement; dealer says they are having significant issues with headlamps. Also, tire safety monitoring system is always on, even though there is a proper air pressure amount.
Aug 08, 2022
POWER TRAIN,ENGINE
1 complaint
Engine light ON with DTC code P052E
Jul 30, 2022
EQUIPMENT
1 complaint
Under hot ambient condition center console touchpad glass crack. There is a service bulletin TSB LI54.21-P-068464 for the issue but MB would not replace the part.
Apr 06, 2022
ENGINE AND ENGINE COOLING
1 complaint
The contact owns a 2018 Mercedes-Benz C300. The contact stated while driving 35 MPH, there was white smoke coming from exhaust. The contact stated that the check engine warning light illuminated. The contact stated that after turning off the vehicle the smoke cleared. The vehicle was towed to dealer but was not diagnosed or repaired. The manufacturer was notified of the failure. The approximate failure mileage was 54,000.
Mar 30, 2022
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM
1 complaint
CYLINDER 1 SPARK PLUGS IS DAMAGED DUE TO PISTON DAMAGE, HOLE IN PISTON. IF EXTRA DAMAGE IS FOUND ON TEAR DOWN, COMPLETE ENGINE REPLACEMENT. This is direct from the repair facilities reports. While driving my 2018 C-300 there was smoking out of tail pipe, a rough vibration, hard to control the vehicle and it was starting to lose power. Not a good situation, had to pull over and have vehicle towed to the dealership. Worst part is this is a vehicle used to transport my 5 children to and from school and activities. My 16 year old also drives this vehicle, had he been driving this with this happening to him, the outcome could have been catastrophic. Vehicle has been inspected by 2 facilities; first was a certified Mercedes Benz repair facility and the second was the service dept. of the Mercedes Benz dealership I have serviced at for over 10 years. Mercedes refuses to cover repair costs or even acknowledge the major vehicle malfunction and safety issue this presents. , which is in my view ridiculous as cracked piston is not something that normally happens as the result of normal wear and tear, especially in a 3 year old luxury car. I have read several blogs on this same issue, Mercedesworld.org with over 400K members, reddit.com, benzworld.org, metrisforum.org, and numerous others. Please review these there are numerous people dealing with this and Mercedes is refusing to acknowledge. In addition, our Mercedes Benz service rep said these pistons were changed out in the 2019 model and newer due to these issues, he said he continues to see this issue with these models and advised Mercedes is well aware.
Jan 04, 2022
STRUCTURE,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE
1 complaint
DATE: APRIL 13, 2021. MODEL: C300 YEAR : 2018 MILAGE: 16,000. TIME: 2.30 P.M. WHETHER: SUNNY. ROAD CONDITION: SMOOTH PROBLEM: WHILE DRIVING ON 405 SOUTH AT SPEED OF APPROX 65 TO 70 MPH FOR NO APPARENT REASON , THE CAR UDDENLY , UNEXPECTEDLY, AND FORCEFULLY SLAMMED ON THE BRAKES ( 65 TO 0 MPH) IN MATTER OF SECONDS, AND LOCKED ITS WHEELS. LEFT ME STOCK ON THE FWY. THE MOST SCARIEST EXPERIENCE AS YOU DON'T KNOW WHAT IS GOING ON OR WHAT IS GOING TO HAPPEN TO . LUCKILY THERE WERE NO VEHICLES IN MY CLOSE PROXIMITY OR WE COULD HAVE DIED ! THE WARNING SIGNS WERE ON " INOPERATIVE BREAK ASSIST SYSTEM" . THE CARS FORCE WAS SO STRONG THAT NOT ONLY JOLTED MY HEAD BACK AND FORTH, IT CAUSED MY COMPUTER TO FLY FROM THE BACK SEAT AND HIT MY HEAD IN THE FRONT SEAT. I HAD TO REPLACE THE VEHICLES SENSORY RADAR ABOUT FOUR MONTHS AGO BACK IN NOV 2020. I SEE THAT MBZ HAS RECALLED ITS 2019 MODELS AND MANY OTHER MODELS ( SOFTWARE GLITCH THAT CAN SLAM THE BREAK UNEXPECTEDLY). WHY RECALL C300 2019 AND NEWER MODELS AND NOT ALL MODELS WITH THIS DEFECTIVE SENSOR SYSTEM.. IT WILL TAKE THEM 30 MINUTES TO REPROGRAM EACH CARS SOFTWARE, YET, ARE NOT DOING IT AND ENDANGERING THE PUBLIC. WHAT HAPPENED TO ME WAS A VERY SCARY INCIDENT AND HOPE THAT YOU CAN GET THEM TO RECALL MY VEHICLE . I AM SCARED TO DRIVE IT AGAIN AS IT COULD HAPPEN AGAIN!
Apr 25, 2021
ELECTRICAL SYSTEM,ENGINE
1 complaint
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. WHILE OPERATING THE VEHICLE, THE CONTACT NOTICED A BURNT CRAYON ODOR INSIDE THE VEHICLE. THE ODOR MADE IT DIFFICULT TO BREATHE INSIDE THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GOLDENS BRIDGE (321 NY-22, GOLDENS BRIDGE, NY 10526), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 14,000.
Sep 23, 2019
TIRES,WHEELS
1 complaint
CONTINENTAL CONTISPORTCONTACT SSR TIRES SIDE WALL RIP/TEAR (MERCEDES BENZ), THIS IS THE FORTH REPLACED TIRES, COMPLAINED SEVERAL TIMES AND FALLS ON DEATHS EARS. MY CONCERN IF A MAJOR CRASH DO TO THE TIRES THEN WHO IS AT FAULT. REPLACING IT SEVERAL TIMES IS NOT THE ANSWER. TAKING THESE TIRES OFF THE ROAD WILL SAVES LIVES. CAR ONLY HAS 6000 MILES ON IT.
Apr 20, 2019
POWER TRAIN,WHEELS,ENGINE
1 complaint
PURCHASED CAR JULY 2018. A/C LEAK IN AUG 2018 AND MARCH 2019; DEALER LOCATE LEAK. FRONT TIRE BLOWOUT WITHIN 6 MONTHS OF PURCHASE (DEC 2018) TRAVELING ON FREEWAY EVENING TIME APPROX 65 MPH; UNKNOWN REASON . SAME SIDE FRONT TIRE BLOW OUT 4 MONTHS LATER (MARCH 2019) DRIVING LATE EVENING ON A MAIN BOULEVARD TRAVELING 25 MPH AND RIGHT FRONT TIRE SHREDDED; HIT MINOR POTHOLE BOTH FRONT TIRES HAD TO BE REPLACED AND THE CAR ALIGNMENT CORRECTED. 1 MONTH LATER (APRIL 2019) RIGHT REAR TIRE LOOSING PSI EVERY 45 MILES; DEALER COULD NOT DETECT LEAK, POSSIBLE VALVE STEM. SAME VISIT DEALER REPLACED TWO REAR LEAKING SHOCK ABSORBERS AND NOTED RIGHT REAR TIRE HAD UNEVEN WEAR /RECOMMEND REPLACEMENT; TIRES HAVE 21,000 MILES. I WILL HAVE TO RETURN THE CAR TO THE DEALER FOR REPAIR. THE TRANSMISSION HAS A VERY HARD SHIFT WHEN I ACCELERATE MORE THAN MODERATE; THE HARD SHIFT CAUSES THE VEHICLE TO PAUSE AND JAR /JERK ABRUPTLY THAT ALMOST SEEMS LIKE YOU HIT SOMETHING. I HAD REPORTED THE ISSUE WITHIN 7 DAYS OF PURCHASE AND I WAS TOLD AMGS HAVE HARD SHIFTS. WHEN I INSISTED THERE WAS AN ISSUE A SECOND TIME IN MARCH 2019; THE ISSUE WAS ADDRESSED AND I WAS TOLD IT WAS THE COMPUTER SOFTWARE THAT REQUIRED AN UPDATE; THE UPDATE TEMPORARILY CORRECTED THE PROBLEM FOR APPROX 1 MONTH. THE VEHICLE HAS BEEN OUT OF SERVICE FOR APPROXIMATELY 13 DAYS SINCE PURCHASED 9 MONTHS AGO IN JULY 2018.
Apr 15, 2019
STEERING,INTERIOR LIGHTING
1 complaint
TL* THE CONTACT OWNS A 2018 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 18V850000 (STEERING) AND 18V906000 (INTERIOR LIGHTING). THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE HOUSE OF IMPORTS (6862 AUTO CENTER DR, BUENA PARK, CA 90621, (714) 627-5553) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOT NOTIFIED. THE CONTACT HAD NOT EXPERIENCED A FAILURE.
Feb 15, 2019
UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE
1 complaint
FORWARD COLLISON SYSTEM ($1700 OPTION) AEB, DOES NOT WORK AS DESCRIBED IN MB LITERATURE OR WEBSITE. IN MY OPINION, THE FORWARD COLLISION AVOIDANCE SYSTEM (AEB) IN MY 7 MO. OLD 2018 MERCEDES C300 SIMPLY DOES NOT WORK. I SPECIAL ORDERED THE CAR WITH THE 997 PKG THAT INCLUDES, DRIVER ASSISTANCE, BAS+, AND DISTRONIC THE MB MANUAL STATES: 'IF ACTIVE BRAKE ASSIST DETECTS THAT THERE IS A RISK OF COLLISION, YOU WILL BE WARNED VISUALLY AND ACOUSTICALLY. IF YOU DO NOT REACT AUTONOMOUS BRAKING CAN BE INITIATED IN CRITICAL SITUATIONS.' AND FURTHER THAT 'AUTONOMOUS BRAKING WORKS AT 4-124MPH FOR MOVING OBJECTS AND 4-31 MPH FOR STATIONARY OBJECTS.'
Dec 24, 2018
SERVICE BRAKES
1 complaint
I BOUGHT A CAR IN APRIL 2018. THE FIRST ACCIDENT OCCURRED ON THE HIGHWAY IN MAY 2018. I WAS DRIVING AT A SPEED OF 75 KM / H. I SAW THE CAR IN FRONT OF ME STEPPING ON THE BRAKES AND I ALSO STEPPED ON THE BRAKES, BUT MY CAR DID NOT SLOW DOWN. MERCEDES-BENZ KOREA CLAIMED THAT THERE WAS NO PROBLEM WITH THE CAR, ALTHOUGH THE CAR COLLIDED WITH THE CAR AS IT WAS. IN JULY 2018, THE SECOND ACCIDENT OCCURRED IN THE UNDERGROUND PARKING LOT OF THE APARTMENT WHERE I LIVE. I STARTED THE CAR, I SAW A CAR IN FRONT OF 60M. AS SOON AS I FOUND THE CAR AND STEPPED ON THE BRAKES, MY CAR SUDDENLY STARTED TO RUN AT HIGH SPEED. I WAS SURPRISED AND BRAKED HARDER. THE HARDER THE BRAKES WERE, THE FASTER THE CAR DROVE. FORTUNATELY, I DID NOT HIT THE CAR THAT WAS ON THE OPPOSITE SIDE, BUT MY CAR WAS PUSHED INTO THE WALL. ON CCTV, YOU CAN SEE THAT I WAS PUSHED INTO THE WALL WITH MY BRAKES ON. IT IS BECAUSE THE BRAKE LIGHT OF MY VEHICLE COMES IN. BY THE WAY, MERCEDES-BENZ KOREA SAYS THAT THERE IS NO PROBLEM WITH MY VEHICLE FOR FIVE MONTHS AND THAT EVERYTHING IS MY FAULT. I HAVE ALSO REPORTED SEVERAL TIMES THAT THERE IS A PROBLEM WITH THE ABS MODULATOR OF A C-CLASS CAR MADE BY MERCEDES-BENZ AT A KOREAN BROADCASTING STATION. MERCEDES-BENZ KOREA TOLD ME THAT WHEN I FIRST HAD A CONVERSATION, THE ABS MODULATOR WAS WORKING AND THAT THE CAR SLIPPED BECAUSE OF IT. I ACCIDENTALLY HIT THE BRAKE PEDAL. MY CAR WAS TURNING ON THE BRAKE LIGHTS ALL THE WAY UP TO 60M STRAIGHT AHEAD (I WAS STILL ON THE BRAKES) AND THE CAR EVENTUALLY HIT THE WALL. WHEN I PROTESTED TO MERCEDES-BENZ KOREA, THEY SAID TO ME, "THE BRAKE LIGHT IS ON, BUT THE BRAKE ASSIST LIGHT IS OFF. YOU DID NOT BRAKE." THEY HAD AN OBVIOUSLY DIFFERENT ANSWER FROM THE BEGINNING. "I RIDE THE CAR AGAIN. HOW WILL YOU BE RESPONSIBLE IF YOU HAVE AN ACCIDENT?" WHEN ASKED THEM, THEY "DO NOT HAVE TO ANSWER ANYTHING THAT HAS NOT HAPPENED YET."
Nov 22, 2018
SEATS,SERVICE BRAKES
1 complaint
I BROUGHT MY VEHICLE TO MERCEDES BENZ FOR A REAR TAIL LIGHT RECALL. WHEN I PICKED UP MY VEHICLE THE BRAKE PEDAL WENT TO THE FLOOR. NOTE: THIS WAS NOT HAPPENING PRIOR TO ME DROPPING THE CAR OFF TO THE DEALER. THE SERVICE MANAGER DROVE MY CAR BACK TO THE MECHANIC. I WAS THEN TOLD THAT, IRONICALLY, THE BRAKE LINE RUSTED (METAL LINE) OUT CAUSING THE BRAKE FLUID TO LEAK OUT. ALSO, PASSENGER FRONT SEAT SENSOR WENT. SEAT WILL NOT MOVE BACK OR FORWARD.
Jun 19, 2018
Frequently Asked Questions
How many problems does the 2018 MERCEDES-BENZ C-Class have?
The 2018 MERCEDES-BENZ C-Class currently has 119 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 2018 MERCEDES-BENZ C-Class?
The most common problems reported for the 2018 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 2018 MERCEDES-BENZ C-Class problem data come from?
All problem and complaint data for the 2018 MERCEDES-BENZ C-Class comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.
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