2011 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.
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514
Complaints Reported
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Complaints by Component
AIR BAGS
248 complaints
The airbags were supposed to have been fixed per recall by carriage house Mercedes in new London ct. my son was in a horrible front in collision and they did not deploy. None of them did. Accident happened 3 days ago insurance will pick up car today. I’d like this noted incase they need evidence
Dec 21, 2023
Takata recall. The contact owns a 2011 Mercedes-Benz C300. The contact received notification of NHTSA Campaign Number: 16V081000 (Air Bags) and 19V010000 (Air Bags). The vehicle was taken to a local dealer for the recall repair; however, the vehicle remained at the dealer awaiting parts for the repair. The manufacturer was contacted and was unable to confirm when the parts would become available. The contact had not experienced a failure. Parts distribution disconnect.
Feb 06, 2023
There was a recall on airbags on this model the C350 2011 and the airbag is now back on
Oct 16, 2022
ABS LIGHT WAS FIXED, BYT LIGHT IS BACK ON
Jan 12, 2021
I JUST PURCHARED THE CAR ON 3/14/2020 FROM CARMAX AND THEIR IS A RECALL ON THE AIR BAGS. IF AIR BAGS COME OUT THIER IS METAL THAT CAN COME THROUGH THEM.
Mar 15, 2020
+ 243 more complaints for this component
FUEL/PROPULSION SYSTEM
38 complaints
On 8/3/2023 we could smell a strong gasoline smell inside and outside our 2011 Mercedes C300. We towed the car to a Mercedes specialty repair shop for inspection. The found that the passenger side fuel pump cover (which is a large cylinder assembly actually) was leaking due to cracked plastic. Gas vapors could be detected outside the car, in the trunk, and in the car as the gas tank is right under the back seat. Our mechanic said he had just fixed another Mercedes with the exact same problem. Apparently this is a well known defect and I understand that Mercedes has an extended warranty for later models. We believe the extended warranty should be extended to our 2011 C300 which has only 55,000 miles.
Sep 07, 2023
Each time I filled my gas tank, there was an overpowering odor of gasoline inside the car and outside on the passenger side. Once the tank would get down below 3/4 of a tank, the odor would dissipate until down to a 1/4 of a tank it would go away completely.
Jul 21, 2023
I suspect a failure in the fuel tank / system seal, which is allowing gas fumes into the cabin. There is a strong smell of gasoline inside the cabin especially after a full tank refill. This issue was also a problem for my 2008 Mercedes Benz E350. It has not been inspected but since my E350 had a similar extended warranty repair, I assume this would be similar. The strong fumes and odor in the cabin is a health risk of breathing the fumes or explosion. There are no warning lamp to indicate this failure. No recalls or extended warranty currently to fix this problem.
Jul 21, 2023
My check engine light came on approximately one month ago. Once tested it indicated a fuel vapor leak. I pulled out of a driveway and a large stream of fuel spilled all over the roadway. Approximately 7 feet in length about 5 inches in width was on the road. I took it to a Mercedes repair shop and they informed me I had a fuel leak and that it was not safe to drive. There was corrosion and rust forming on the tank which seems very odd since the car is garage kept and we don't get much snow in Kentucky. My daughter rides in this car with me and they told me it is very dangerous and needs repaired. If I was to drive over a cigarette we could essentially blow up. I had a second shop look at it and they also informed me I had a fuel leak and would need to replace the fuel tank. I was told there was a recall on some models of Mercedes for this issue but can't seem to find one on my year make and model. Please help with this matter so my daughter and I can remain safe as well as others around us. Seems like we are in a ticking time bomb.
Jun 21, 2023
When fuel tank is greater than approximately 3/4 full there is a strong fuel odor that seems to emanate from the rear passenger side of the vehicle; at lesser fuel quantities the odor is not noticeable. On one occasion I detected what appeared to be fuel dripping from underneath the vehicle. Took vehicle to dealership for troubleshooting and was informed "fuel leaks at the fuel pump" and it was recommended that the fuel pump and fuel sender be replaced. Additionally, the leak apparently damaged the electrical wiring harness to the fuel pump and that also needs to be repaired. There were no warning lamps or messages displayed that alerted me to this problem. Obviously, this is a hazard to safety.
Oct 05, 2022
+ 33 more complaints for this component
SUSPENSION
37 complaints
Subframe rusted resulting in failure of left rear suspension mount causing dangerous loss of control of car under braking.
Nov 05, 2024
Rear tires were down to steel belt after replacing August 1, 2022 and less than 10,000 mile wear. I took the car to a dealership for diagnosis. The rear subframe is completely corroded and failed causing extreme wear on tires and a DANGEROUS DRIVING SCENARIO. I’ve researched and see this is a common problem on these Mercedes cars. Why is there no Mercedes recall or accountability for this common issue?This is a serious issue that could cause serious accidents and bodily harm or death..
Feb 08, 2023
I was teaching my 16 year old son how to drive when he got his learners permit . When we got onto the highway a car cut him off and he had to apply a firm steady brake . When breaking the car swerved from the rear into the other lane , nearly striking another vehicle . This also resulted in a loss of control when applying heavy breaking after I had him pull over and I took control of the vehicle once I was able to get the car to the shop I pulled the rear wheel s off and inspected the brakes , which were found to be in good condition . I looked around the vehicle and noticed where the rear driver side subframe connected to the control arm broke off from a manufacturer defective weld or poor selection of materials . component. Upon inspection both sides are perforated and have lost structural integrity. Many other vehicles of the model type have reported similar issues online. This is a serious safety concern that will happen to 100% of these vehicles. A recall needs to be issued by Mercedes for this immediately. This vehicle has very little rust anywhere except at these connections .
Dec 31, 2022
Tried to get alignment and was told rear sub frame is rotted. Must be replaced. Car is garaged. Serviced at dealer. This shouldnt be happening. Car was involved in accident (mainly passenger doors damaged) which triggered us to need to get new tire which alerted us to alignment cant be completed and told to not drive car it's not safe due to rotted subframe.
Dec 07, 2022
I was driving my 2011 MB C300 40 MPH on a straight suburban road when the light turned red. I applied the brakes and heard a clunk from the rear. Surprisingly, the car swerved with a right turn yaw moment. Normally I enjoy driving my car, but that never happened before. So I tried it again in the next block and it yawed again. That’s not right. My mechanic happened to be just down the road so I pulled in. He told me that the rear subframe had rusted out and the car was unsafe to drive. Furthermore, he would not attempt welding it because the metal is too far gone. A new replacement part is unavailable from the dealership and back ordered from Germany for months. Used part will also be rusty. My car with 77k miles on it is suddenly worthless. Mercedes-Benz “The Best and then Nothing”
Nov 17, 2022
+ 32 more complaints for this component
STRUCTURE
27 complaints
Interior door handle becomes inoperative due to breaking of some internal element. This prevents leaving the vehicle. Of concern is that in case of emergency, the occupant cannot exit the vehicle. If power is affected, the windows cannot be lowered which is the only way to exit using the exterior door handle. This is a well known defect of this series of Mercedes Benz to which the manufacturer has not accepted responsibility.
Jun 11, 2024
So i was using my car daily for go to work and I was on the highway and they happened a accident in front of me so I have to slow down due to the accident i was going 70 miles per hour and when made a hard break my car turn sideways due to the rear subframe was broke and I dint even notice that the part was rotten they i start looking online and I noticed that the majority of those car come with that factory issue.
Apr 30, 2024
Good morning. I previously reported incident [XXX] about a subframe issue w/ my 2011 Mercedes Benz C-300. This morning I received a warranty extension from the originally expired 4 years/50,000 mile to 20 years/unlimited miles. The notice says that repairs must be performed by an authorized Mercedes Benz dealership. I had the auto fixed privately and filed the NHTSA request. I called their CS and was told that I would need to visit a dealership, but to be honest I think that would be fruitless. Can MB be compelled to reimburse me for the cost incurred? Regards, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Apr 14, 2023
Took my 2011 C300 4matic to a local mechanic after I noticed a dramatic pulling sensation to the left after braking. After mechanic's inspection, I was informed that the rear subframe was rotted out and that the vehicle is unsafe to drive. I still have the car available for inspection of the rear subframe. The rear subframe caused the pull to the side under braking, which alone could cause an accident. Since it also connects the suspension to the frame of the car, at any point a critical suspension component could break off from the subframe, likely causing total loss of control of the car and potentially an accident. I also took the car to a Mercedes-Benz dealership where they confirmed that the rear subframe would need to be replaced and that the car was not safe to drive. I contacted Mercedes-Benz corporate, but received no support. I was only informed that they are aware of this issue, but they will not assist in any way since there is no recall issued. I provided them with copies of the quote from the dealership.
Feb 05, 2023
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving at approximately 55 MPH and slowing for traffic, the rear end of the vehicle started to drift to the right. The contact heard an abnormal sound coming from the rear driver’s side of the vehicle. The contact stated no warning light was illuminated. The contact had driven the vehicle to a local dealer, where it was diagnosed and determined that the entire rear subframe needed to be replaced due to extensive corrosion. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 85,000.
Feb 01, 2023
+ 22 more complaints for this component
ELECTRICAL SYSTEM
21 complaints
I researched that the sunroofs on these models are faulty and have caused water/electrical damage under the carpeting and seats of the vehicles. That is what has happened with my 2011 C300 Sport.
Jun 03, 2024
The contact owns a 2011 Mercedes-Benz C300. The contact stated that when starting the vehicle, the ignition was not reading the key, and the steering wheel was locked. The message to remove the key from the ignition was displayed. Additionally, the fuel gauge was inoperable and not reading the fuel level. The vehicle was taken to the dealer where it was diagnosed with a locked steering wheel and the steering wheel lock needed to be replaced. The vehicle was not repaired. The contact was informed that the parts were ordered to complete the repair. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,100.
Mar 13, 2024
Melted taillight socket board.
Jan 16, 2024
Due to apparently deficient sunroof water drain system design, rainwater and condensation entered the passenger compartment under the carpeting, potentially damaging the vehicle's electrical wiring. The vehicle is available for inspection upon request. A dealer has inspected and confirmed the damage. Initial symptoms of the problem were wet carpeting and the sound of water sloshing around under the floor of the passenger compartment.
Jan 09, 2023
ON THURSDAY, FEBRUARY 27, 2020 MY VEHICLE WAS NOT STARTING IN ORDER TO TAKE ME HOME AT 9:40 PM. DUE TO THE FAILURE OF THE ESL IN THE STEERING COLUMN I AM NOW FORCED TO WAIT HERE UNTIL A TOW TRUCK COMES. I DO NOT FEEL SAFE IN THIS LOCATION AND WISH MY VEHICLE WOULD START KNOWING THAT IT HAS THE CORRECT AMOUNT OF VOLTAGE AT THE BATTERY.
Feb 28, 2020
+ 16 more complaints for this component
UNKNOWN OR OTHER
15 complaints
The driver’s side door handle broke and I was unable to leave the car unless it was unlocked and rolled the window down to open it from the outside through the window. If there was a loss of power and you pulled on the latch and it broke you would be delayed in exiting. There are multiple videos on after market parts to repair the plastic pin that breaks. Tesla seems to be recalling their vehicles for a similar problem recently, why not Mercedes for a known problem????
Sep 20, 2025
I was told by 2 different vehicle repair shops that the subframe is broken. I just dropped it off at the Mercedes service shop near me to look at.
Jul 24, 2024
the rear subframe on my car rotted out. Before they called a recall/extended warranty,I paid to have it fixed. Since it is a 2011, I was not about to pay $7,000-$9,000 to get a new one. I made the best decision with the information I had at the time. It broke in June of 2022. I had the car fixed with a used subframe from Atlantic Auto. Once I realized there was FINALLY a recall/Extended warranty, I submitted All necessary paperwork and have been denied. I wrote to Mercedes Benz Corporate office. They contacted the Warwick store. Went back and forth All summer and they have refused to reimburse me the &2,299. that I spent to fix the car. It says the decision is made on a case by case review. They have denied my claim. I have all the correspondence between myself and Mercedes Benz.
Nov 08, 2023
Over the weekend my vehicle driver side interior door handle became inoperable not allowing me to open my door from the inside. The handle flaps back & forth with no connect to the inside of door panel not making be able to get out of my vehicle. I was stuck & had to climb over to passenger side to get out. It only opens from outside . It has been functioning well for the life of me owning the vehicle, never giving me any problem until now, suddenly with no warning that it was breaking. My Mercedes dealer said I need a whole door panel & they have had several calls from other C300 owners where this handle broke also recently. So they are aware & admitted so. This is a recall or factory defect in my eyes. Also I looked online & this is very common because of a plastic not metal part Mercedes uses . Is this not unsafe enough to be recalled? It’s a no brainer! Not bein able to exit your vehicle at all. I was so scared and shocked a car of this class has this safety issue and they do not do a thing to their owners to fix it, its on owner and their pockets. This should be taken care of immediately for free. Are they waiting for someone to have an accident and lose their life to act on replacing this problem?! Again I feel this is a major safety recall that needs to be addressed ASAP. Safety, peace of mind, accessibility to exit/enter your vehicle. If no one can help you from the outside, you have to climb out from passenger side or thru the back of the vehicle. You can open your window too, but what if that jams electrically ….you are stuck. $900 plus labor should not be on me but should be in Mercedes hands to value my life & others lives more than any price as a standard part of their fleet of cars they have driving across USA. High end luxury car w/a faulty door handle that leaves you unable to get out, unbelievable ! Has safety hazard written all over it. I have a video & submitted a pic of my issue. This is my second MB I owned and I never had this danger occur.
Aug 28, 2023
The control arm is currently freely hanging. The reverse subframe rusted out where the control arm connects to it causing severe swaying when braking.
Jan 03, 2023
+ 10 more complaints for this component
EXTERIOR LIGHTING
14 complaints
The contact owns a 2011 Mercedes Benz C300. The contact stated that while operating the vehicle, the rear lights became inoperable and failed to illuminate as needed. The vehicle was taken to the local mechanic who diagnosed that rear lighting wires were burned, causing an electrical failure within the rear light assemblies. The vehicle was not yet repaired. The manufacturer and local dealer were notified of the failure. The contact was informed that the VIN was not included in NHTSA Campaign Number: 14V177000 (EXTERIOR LIGHTING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 100,000.
Dec 04, 2024
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving approximately 40 MPH, the messages to check the rear taillights and rear turn signals were displayed. The contact drove the vehicle to a local dealer who diagnosed the vehicle and determined that the rear taillight bulbs and connectors needed to be replaced. The vehicle was not repaired. The contact informed the dealer that the vehicle had been previously repaired under NHTSA Campaign Number: 14V177000 (Exterior Lighting). The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 85,000.
Aug 12, 2024
We had notifications on our dashboard that rear driver side (left) lights were out while driving car. We thought the light bulbs just had to be replaced. We brought to mechanic to just fix lights & they discovered the light ground wire burned out & caused light holder to be damaged as well where ground wire was. It caused rear driver side tail lights to fail. We had light bulb holder with wires all replaced on 2/23/24. This issue was a recall back in 2014 & seems to be a reoccurring issue with this part of the Mercedez 2011 C class.
Feb 27, 2024
The contact owns a 2011 Mercedes-Benz C300. The contact stated when he started the vehicle, the driver side taillights were inoperable, and the taillight warning light was illuminated. The contact examined the taillights and noticed that the wires were melted, and the taillight assembly had melted as well. The dealer was contacted and stated that the vehicle was serviced under NHTSA Campaign Number: 14V177000 (Exterior Lighting). The contact received no additional assistance. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 90,000.
Jan 24, 2023
The driver side rear tail light wiring melted the tailight housing. This component was already replaced as part of a previous recall, but apparently Mercedes is not properly fixing the issue. They refuse to fix it for free, because they already "addressed" the recall. Looks like they are putting cars back on the street that could catch fire.
Aug 23, 2022
+ 9 more complaints for this component
SUSPENSION,STRUCTURE
13 complaints
The subframe has rusted/fallen off. This is incredibly risky as the car cannot be driven safely and it happened without warning. My mechanic said it is not due to any driving incidents but through rust occurring on Mercedes' subframes, which are flimsy. It has been inspected professionally by a mechanic. There are NO warning lamps. This could kill someone on the highway as while braking the car veered left and right. I had small children in the car we all neck pain from the car veering while stopping on the highway. I have taken good care of my vehicle and have all maintenance current. This is a fault with the material on the subframe. For MB: All the subframes are on backorder and are incredibly expensive to fix. I have a video of the damage from the mechanic if needed.
Nov 03, 2023
Like apparently the majority of this model year C300, the rear subframe is completely disintegrated. This is a known issue but Mercedes has not communicated it nor fixed it. I was told, and as the photos clearly indicate, this very likely could have resulted in a catastrophic or fatal accident as the entire rear is corroded. I have photo and video support as well as the inspection from a mechanic.
Apr 14, 2023
My vehicle has been making very odd noises, the steering wheel keeps looking off center and the car is kicking/fishtailing at times without warning. Our mechanic has looked at the car SEVERAL times and finally discovered that the sub frame is completely rusted out and broken. We were told not to drive the vehicle anymore as it is extremely dangerous. After researching about this issue, we found that a class action lawsuit was filed in February 2023 for corrosion/rusting out of frames in 2010-2022 Mercedes Benz models. According to the information, Mercedes is refusing to cover the cost of the repairs and is not returning calls from customers effected by this issue. This information has been reported and added to the class action lawsuit. It was recommended that we report it here as well.
Mar 21, 2023
My 2011 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.
Jan 25, 2023
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving approximately 60 MPH, the brake pedal was depressed, and the rear end of the vehicle pushed out. The contact looked underneath the vehicle and noticed that the subframe was rusted. The vehicle was taken to an independent mechanic who informed the contact that the control arm had detached. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was contacted but no additional assistance was provided. The failure mileage was approximately 105,000.
Jan 10, 2023
+ 8 more complaints for this component
STEERING
10 complaints
The ESL is going out and is causing the car to not detect the key.
Nov 14, 2024
I haven't had an issue with this yet but have heard others having this issue. Mercedes Benz fitted cheap plastic Electronic Steering Lock (ESL) in these models that are prone to failure. Unexpectedly, this device will fail and will lock out the steering which can happen anytime and can cause a serious accident. The car will have malfunctioning steering when this device fails and should have a recall.
Feb 12, 2022
2008-2011 Mercedes models were manufactured with cheap electronic steering locks that fail often. While I haven’t experienced a failure while driving, the system is and has been extremely problematic and unreliable. It is highly plausible that the system could fail while driving due to the cheap components and unreliable and faulty programming. I urge the NHTSA to look into this and require Mercedes to replace these ESL’s with a safer, more reliable steering component that doesn’t have the potential to suddenly lock or unlock due to a unforeseen failure.
Jul 16, 2021
TL* THE CONTACT OWNS A 2011 MERCEDES BENZ C300. THE CONTACT STATED AFTER HER VEHICLE WAS SERVICED AT (MERCEDES-BENZ OF SHREWSBURY 760 BOSTON TURNPIKE, SHREWSBURY, MA 01545) FOR AIR BAG REPLACEMENT. WHILE ATTEMPTING TO START THE VEHICLE THE ENGINE WOULD NOT START AND THE POWER STEERING CEASED. THE VEHICLE WAS INITIALLY DIAGNOSED WITH A REPLACEMENT BATTERY AND AFTER THE REPLACEMENT THE FAILURE RECURRED. THE VEHICLE WAS TAKEN BACK TO THE DEALER FOR A SECOND DIAGNOSIS WHICH WAS THAT THE STEERING LOCK MODULE WAS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THIS FAILURE. THE FAILURE MILEAGE WAS 71,000.
Jan 23, 2020
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE DID NOT START AND THE STEERING WHEEL SEIZED. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC WHO DETERMINED THAT THE STEERING LOCK MODULE FAILED AND NEEDED REPLACEMENT. THE VEHICLE WAS NOT REPIARED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 103,000.
Nov 25, 2019
+ 5 more complaints for this component
FUEL SYSTEM, GASOLINE
8 complaints
The contact owns a 2011 Mercedes-Benz C300. The contact stated after adding more than 3 gallons of fuel to the vehicle, there was a strong fuel odor inside the cabin of the vehicle. The contact stated that the failure had been recurring and was making him unwell. The vehicle was taken to the dealer, where it was diagnosed and determined that the failure was related to NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). 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 unknown.
Oct 30, 2023
The contact's client owns a 2011 Mercedes-Benz C300. The contact stated that the vehicle's owner had complained of an abnormal fuel odor coming from the vehicle. There was no warning light illuminated. Upon inspecting the vehicle, the contact discovered that fuel was spraying out of the fuel pump onto the exhaust. The contact was able to replace the fuel pump and correct the failure. Upon investigation, the contact discovered NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline) which he linked to the failure. The dealer nor the manufacturer had yet to be notified of the failure. The vehicle had been repaired. The failure mileage was approximately 142,000.
Aug 25, 2022
The contact owns a 2011 Mercedes-Benz C300. The contact stated that after refueling the vehicle and driving a short distance, there was a burning odor coming from inside and outside the vehicle. The traction control warning light was illuminated. The contact had taken the vehicle to a certified mechanic who replaced the fuel cabinet. The burning odor persisted. The contact was informed that the failure was related to NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer was made aware of the failure. The approximate failure mileage 12,800.
Aug 24, 2022
The contact owns a 2011 Mercedes-Benz C350. The contact stated that upon approaching the vehicle, he noticed a strong fuel odor. The contact stated as he entered the vehicle, he could still smell the strong gasoline odor. There was no warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the fuel pump assembly and the fuel filter needed to be replaced. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline). The manufacturer was not notified of the failure. The failure mileage was approximately 52,861.
Aug 17, 2022
The contact owns a 2011 Mercedes-Benz C300. The contact stated he started to smell an abnormal fuel odor and noticed a spot where fuel had leaked onto the garage floor. The contact stated that the check engine warning light was illuminated. The contact stated that while inspecting the vehicle, he noticed both fuel tank covers were cracked. The contact drove another vehicle to the local dealer and made them aware of the failure. The vehicle was not diagnosed or repaired. Upon investigation, the contact associated the failure with NHTSA Campaign Number: 12V557000 (Fuel System, Gasoline) however, the VIN was not included. The manufacturer had been informed of the failure. The failure mileage was approximately 82,000.
Aug 23, 2021
+ 3 more complaints for this component
STEERING,ELECTRICAL SYSTEM
7 complaints
For the 2011 Mercedes Benz C300, the following is a general description of the issue: The component that failed is the "internally faulty" electronic steering column lock control unit which doesn't allow the car to start its ignition. The technician at the Mercedes Benz car dealership noted on the invoice "found the electronic steering lock is internally faulty." Technician provided two specific codes and recommended to replace the steering lock control unit. Yes, this car is available for inspection upon request. Car is not reliable. After running errands, car did not start. I was stranded and could not get back home. Car had to be towed to the Mercedes Benz dealer service center. Yes, problem was reproduced in another Mercedes-Benz C300 car that I own. This other vehicle is a 2010 Mercedes-Benz C300. The failure of the "internally faulty steering lock control unit resulting in a no crank/no start condition" was confirmed on the invoice from the Mercedes Benz dealer service center. The car was not inspected by the manufacturer, police, or insurance representative. The car was inspected by the Mercedes Benz dealer service center. Prior to complete failure, car would occasionally not start. This issue first appeared on or around August 2024. This steering lock failure is a critical issue as I had the same problem with another Mercedes Benz C300 that I own. Both steering lock failures for both cars occurred around the same time period and were separately diagnosed and fixed at different Mercedes Benz dealer service centers.
Sep 21, 2024
I own a 2011 C300. Recently, my car suddenly stopped working while I was attempting to leave somewhere away from my home. It would not crank or turn over/start. So I was completely stranded, and in the extreme Florida heat. There has been no damage or wreck to cause this. There were also no warning lights or symptoms in my car beforehand. My car was towed to a Mercedes Benz dealership in the nearest city. They diagnosed the problem as an electronic steering lock failure. I asked how this happened. I was told that they do not know how it happened. I was also quoted a very expensive repair bill. Upon researching this problem further, I found out that steering lock failure and ignition switch failure is a recurring and common problem that Mercedes Benz already knows about, and many people with my car and similar models have had the same problem over the years. Age of the car at time of failure did not matter, either- it has happened to many cars at different ages and mileage.This is not a normal problem for any car to have, nor is it caused by normal wear and tear. Some people have even had their cars suddenly stop working while they are driving. Many people have also asked why these faulty parts have not been recalled yet. I contacted the company multiple times and did not receive any resolution to the problem. They said that this is my responsibility to repair, and they would not pay to repair this, nor reimburse me. The company's agent did not care at all about the issues, nor take any accountability for them as the manufacturer. Being stranded in the middle of nowhere at any time is dangerous for anyone, especially in certain areas or during intense weather. This entire issue has caused extreme stress for me- interruption in my schedule, lack of transportation, and financial loss. Please hold the Mercedes Benz company accountable for their lack of proper manufacturing and lack of proper repair to their parts that they know are faulty. Thank you.
Jun 13, 2022
CAR PARKED,STEERING COLUMN SEIZED. UNABLE TO START IGNITION OR PUT VEHICLE IN GEAR. *TR
May 20, 2020
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF NORTHLAKE (LOCATED AT 10725 NORTHLAKE AUTO PLAZA, CHARLOTTE, NC 28269, (704) 321-4833) WHERE IT WAS DIAGNOSED THAT THE ELECTRONIC STEERING WAS FAULTY. THE TECHNICIAN REPLACED THE STEERING LOCK. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 87,536.*BF*JB
Oct 08, 2019
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. WHILE ATTEMPTING TO START THE VEHICLE, THE ENGINE WOULD NOT START AND THE POWER STEERING ABILITY SEIZED. THE VEHICLE WAS TOWED TO MERCEDES BENZ OF HONOLULU (818 OKAPI OMANI AVE, HONOLULU, HI) WHERE IT WAS DIAGNOSED THAT THE STEERING LOCK MODULE WAS FAULTY AND NEEDED TO BE REPLACED. THE MODULE WAS REPLACED AND THE FAILURE WAS REMEDIED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 53,000.
Jul 02, 2019
+ 2 more complaints for this component
SUSPENSION,UNKNOWN OR OTHER
5 complaints
I just purchased a 2011 Mercedes C300. I was told that for the past 2-3 years the vehicle would constantly bald out the rear 2 tires and would need replaced every 3 months. As I was driving the vehicle I noticed that the rear tires would make weird noises as if it was hutting something. Upon further investigation the rear sub frame is rotted, which based on research appears to be a very common problem with these vehicles. The rear sub frame is rotted in which caused the lower control arms to completely rot off of the frame posing as a serious safety issue for me when driving with my children and a safety issues for others when I drive on the road. On top of that due to the lower control arms completely rotting off the frame it caused the control arms to hit the gas tank which could catch the car on fire. Mercedes has refused to issue this as a recall in due part to their negligence. Customers cannot afford to pay $5000 for a rotted subframe due to negligence from Mercedes. Please research how many vehicles have had rotted subframes for this vehicle. In Germany they will repair the rotted subframe free of charge. Mercedes needs to be held accountable for risking peoples lives.
Oct 05, 2024
Recently I was driving and heard a knocking/creaking noise in the left rear. When braking I felt as though I was going to lose control of the vehicle...vehicle appeared to fishtail and pull to the left. I first noticed it on [XXX] when I was driving on the highway in excess of 60 MPH. On [XXX] I brought it to my mechanic (Genesee Auto Repair, 40 Liberty Street, Salem, NH (603)898-1899) and my mechanic informed me that the left rear subframe had rotted out and told me that I should not be driving the car. There were no warning lamps or messages indicating there was a problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Apr 09, 2024
I have a 2011 Mercedes C300 that I purchased as a Certified Vehicle - this car was purchased at The Mercedes Dealer in Kansas City. I believe I purchased it around 2013 - I have recently found out that the rear sub frame is completely rusted out. I have had the car repaired at my auto shop - Not a MB dealership, as there was not a dealership that was able to see the car in any reasonable amount of time and the car was not safe to drive. The only way I found out about this rusted out subframe was due to the control arm breaking off - This car was very dangerous to drive and in essence, it is probably a good thing that the control arm broke as this could have resulted in a loss of steering on the vehicle and a very dangerous accident! I have been reading online and speaking with MULTIPLE people who have had the same situation with this rear subframe. This is CLEARLY an issue with MB and clearly an issue that they have been made aware of. When I called the NMB service department they were a month out to just look at the car - and the part is on back order I was told - which CLEARLY indicates a lot of these rear sub frames are being replaced. I am attaching various articles / forums online that I just, at a glance, composed a list of. There are a TON of stories of these sub frames rusting out for various models. Seems to be tied mostly to the C300 vehicles. I am attaching pictures of this rusted out subframe and an invoice that I paid to have the car repaired for this issue. The ironic thing is when I was at this auto shop, there was another C300 sitting out front that had just had the same rusted out subframe replaced. Mercedes has a recall in Canada for this SAME issue and other countries have acknowledged this is a major safety issue. A rear subframe should not rust out and leave the driver with no way to steer the car. Mercedes has refused to acknowledge this is an issue in the US.
Oct 26, 2022
I have a 2011 C300 Sport that I purchased end of the lease (3yr.). The car was never driven in the winter for 4 seasons and most recently just the last 3 winters. Complete frame rot on the rear driver's side. Rot was noticed by my mechanic at the last oil change. He said he is replacing three rear frames for customers as soon as he can get parts. Parts are limited and only in Germany. I want it repaired with genuine parts. If the frame separates while the vehicle is at highway speeds, operator control can be compromised. The brake line which attaches to the frame has ruptured in many cases from what I have read. I called MB customer service and there is no recall at this time. I called the local dealer and they have been replacing quite a few frames with the same issue. This is a dangerous failure and if I remeber correctly about 8-10 years ago Toyota recalled trucks and SUVs for frame replacement.
May 11, 2022
The rear suspension subframe rotted. The car has 140,000 miles and is kept in a garage. There was no warning regarding the damage. I nearly lost control of my car on a highway, it was I reported this to Mercedes to see if there was a recall. There was no recall on the part, Mercedes did not take responsibility for repairs. I paid to have the car repaired. There were no warning lamps that alerted me to the problem. The car was towed to a Mercedes dealer and I opened a claim with Mercedes.
Feb 17, 2022
POWER TRAIN
4 complaints
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving approximately 25 MPH, the vehicle stopped in the middle of the roadway. The contact stated that the tire pressure and check engine warning lights were illuminated. The vehicle was towed to the independent mechanic and diagnosed with transmission failure. The transmission was rebuilt. The contact then had the vehicle towed to another mechanic, who diagnosed a failure with the rear axle. The rear axle was replaced. The manufacturer was notified of the failure. The approximate failure mileage was 1,000.
Apr 28, 2022
WHEN IN MOTION A GRINDING NOISE CAN BE HEARD, WHICH WAS LATER IDENTIFIED AS A TRANSMISSION BEARING. VEHICLE HAS APPROXIMATELY 69,000 MILES. THE VEHICLE HAS BEEN REGULARLY SERVICED BY A MERCEDES DEALER IN MOST CASES, WHICH INCLUDED A SCHEDULED TRANSMISSION SERVICE THAT WAS CONDUCTED BY MERCEDES.
Feb 26, 2016
WHEN COMING TO A STOP OR LETTING OFF THE ACCELERATOR PEDAL IT FEELS AS IF THE VEHICLE WAS REAR ENDED BY ANOTHER VEHICLE. I SUSPECT IT'S EITHER COMING FROM THE DRIVE SHAFT OR TRANSMISSION. I HAVE TAKEN THE VEHICLE TO THE DEALERSHIP A NUMBER OF TIMES BUT CAN NOT DUPLICATE AFTER IT HAPPENED GOING ON A TEST DRIVE WITH A TECHNICIAN. *TR
Aug 19, 2014
AT ONLY 5000 CLUTCH AND FLYWHEEL "EXPLODED" ACCORDING TO DIAGNOSTIC AT PRINCETON DEALERSHIP. QEC CENTER IN JACKSONVILLE PROMISED TO PROVIDE RESULTS OF ANALYSIS TO DETERMINE CAUSE. ON 7/10/2013 I LEARNED UPON INQUIRY THAT QEC ADVISED PRINCETON DEALERSHIP TO DISPOSE OF PARTS WITHOUT GIVING ME THE OPPORTUNITY TO KEEP THOSE PARTS. I WISH TO KNOW WHY THIS HAPPENED; HOW COMMON IS THIS OCCURRENCE; AND WHAT IS MY RECOURSE IF THIS HAPPENS AGAIN. *TR
Jul 12, 2013
SERVICE BRAKES
3 complaints
Car was Off and parked when brake line failed. Further inspection was able to identify that brake pipes was slowly corroded thought entire lower part of the brake system causing critical failure of brakes. Extreme safety issue due to the material of metal/coating and position of brake pipping. If operator was not observant, operator/driver would not have any braking and could cause harm.
Oct 25, 2025
Rear brake line rusted through land leaked all the break fluid rendering the vehicle unsafe to drive due to the complete failure of the breaking system. The location of the break line corrosion is above the rear differential and next to a retainer clip.
Jul 24, 2024
The brake lines have corroded in multiple places causing brake fluid to leak, potentially creating a safety risk had the problem not been immediately observed and corrected. An independent service center confirmed the problem and replaced all the brake lines and hoses. There were no warning lamps or signals. A puddle of brake fluid under the car was the first indication of a problem.
May 21, 2024
STEERING,ELECTRICAL SYSTEM,UNKNOWN OR OTHER
3 complaints
The ESL or electronic steering lock is a very common issue with this year and model at around the 70k mile mark. You cannot start the car once this goes out and it’s over $2k to fix
May 02, 2025
WE ARE A SMALL FAMILY OWNED CAR LOT THAT HAS BEEN IN BUSINESS SINCE 2005. WE SOLD A 2011 MERCEDES C300 TO A NICE YOUNG COUPLE LAST WEEK. AFTER ONLY HAVING IT LESS THAN 24 HOURS, THE CUSTOMER CALLED STATING THE VEHICLE WILL NOT START. SAID WENT TO START THE VEHICLE IN THE MORNING AND THE STEERING WHEEL WAS LOCKED AND CAR WOULD NOT START. THE LIGHTS & RADIO TURNED ON BUT IT HAD A MESSAGE ON DASH TO REMOVE KEY FROM IGNITION. WE HAD TO CALL A TOW COMPANY TO TOW IT TO THE MECHANIC AND PUT THEM IN A LOANER CAR. LATER THAT DAY I STARTED DOING SOME RESEARCH AND REALIZED MANY MANY OTHERS ARE HAVING THIS SAME EXACT ISSUE AND IT IS COSTING THEM $1600-$1800 TO HAVE THE ESL & EIS REPLACED. IT IS INSANE HOW MANY OF THE SAME ISSUE HAVE BEEN RECOGNIZED AND REPORTED YET THERE IS NO ACTIVE RECALL ON THIS VERY DANGEROUS, EXPENSIVE ISSUE WITH ON A CAR THAT MANY PEOPLE CAN ONLY DREAM ABOUT HAVING! I WILL ATTACH THE LINK ALSO THAT I FOUND THE OTHERS HAVING THE SAME ISSUE. HTTP://WWW.CARPROBLEMZOO.COM/MERCEDESBENZ/C300/STEERING-COLUMN-PROBLEMS.PHP
Nov 14, 2017
"TAKATA RECALL" I HAVE A MERCEDES BENZ C300 2011 A PROBLEM OCCURRED WHERE YOU TURN THE KEY AND IT DOES NOT RECOGNIZE AND STEERING WHEEL LOCK.EVERYTHING ELSE WORKED LIKE LIGHTS,RADIO,BATTERY. I WAS DRIVING ONE MOMENT STOPPED AND PARKED FOR LESS THAN 5 MINUTES AND NOTHING HAPPENED. I'VE DONE SOME RESEARCH AND IT LOOKS LIKE THERE'S QUITE A FEW OTHER OWNERS HAVING THE SAME PROBLEM. YOU CAN CHECK ON THIS LINK HTTP://WWW.CARPROBLEMZOO.COM/MERCEDESBENZ/C300/STEERING-FAILED-PROBLEMS.PHP I BELIEVE THIS SHOULD BE A RECALL AND NEEDS TO GET FIXED.
Feb 19, 2016
SERVICE BRAKES, HYDRAULIC
3 complaints
The contact owns a 2011 Mercedes-Benz C300. The contact stated that while driving at an undisclosed speed, the brake pedal was depressed and almost went all the way to the floorboard, and the vehicle failed to stop as needed, requiring an increased effort to bring the vehicle to a complete stop. No warning lights were illuminated. The vehicle was taken to the dealer but was not yet diagnosed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.
Aug 29, 2024
TL* THE CONTACT OWNS A 2011 MERCEDES BENZ C300. THE CONTACT STATED THAT WHILE ENTERING A PARKING SPACE, THE BRAKES FAILED AND THE VEHICLE WENT OVER A CURB AND SLIGHTLY CRASHED INTO THE FRONT OF A BUILDING. THERE WAS NO DAMAGE TO THE VEHICLE BECAUSE THE VEHICLE WAS MOVING AT SUCH A SLOW RATE OF SPEED. THE CONTACT STATED THAT THE VEHICLE DID NOT ACCELERATE BUT CONTINUED ROLLING AND WOULD NOT STOP. THE DEALER INSPECTED THE VEHICLE AND DETERMINED THERE WAS NOTHING WRONG WITH THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 4,100.
Jan 24, 2012
BRAKE PEDAL IS NOTCHY OR STICKS DURING THE INITIAL PORTION OF PEDAL TRAVEL. INCONSISTENT BRAKE FEEL AT EACH STOP LEADS TO OVER OR UNDER BRAKING, DEPENDING ON WHETHER OR NOT THE PEDAL STICKS. IT HAS BEEN DIAGNOSED BY MERCEDES AS AN INTERNALLY LEAKING BRAKE BOOSTER, BUT THEY WON'T REPLACE IT, SAYING THE PART FALLS WITHIN SPECS. THIS CAR IS A 2011 C300W4. THIS MODEL IS NOT LISTED IN YOUR PULL DOWN MENU (I ENTERED E CLASS TO COMPLETE THE FORM). *KB
Jul 05, 2011
AIR BAGS,UNKNOWN OR OTHER
3 complaints
I was in a collision and the airbags did not deploy. There was a recall on airbags for the Mercedes C300 within the year my vehicle was made, however, the recall did not include my VIN. Also, the sunroof drain is faulty, which was also recalled on other Mercedes C300s within the same production year, again not my VIN, but upon inspection by a certified dealership, it appears to be the same issue as other recalled vehicles.
Apr 12, 2024
TAKATA RECALL MY DEALERSHIP (LOKEY MERCEDES CLEARWATER FL) SAYS TO EACH OF MY INQUIRIES "PARTS UNAVAILABLE, NO FURTHER INFORMATION" . MERCEDES BENZ THEMSELVES SAY SAME THING PLUS "DRIVE YOUR CAR, THIS RECALL IS A SAFETY PRECAUTION". I DON'T FEEL LIKE A SOLUTION IS IN SIGHT. ALTHOUGH THE TAKATA AIRBAG HAS NOT YET MALFUNCTIONED, I AM DRIVING A POTENTIALLY DANGEROUS CAR. PLEASE HELP.
Nov 28, 2017
I WAS CONTACTED YEARS AGO ABOUT THIS AND NO ONE HAS THE REPLACEMENT YET. I ONLY HAVE ONE VEHICLE, SO I WILL NEED A LOANER TOO.
Nov 03, 2017
ELECTRICAL SYSTEM,EXTERIOR LIGHTING
3 complaints
The right rear tail light housing harness melted due to an electrical issue. Wire tends to heat up too much. This caused my right rear tail light, right break light and right side turn signal not to function.
Apr 02, 2024
Rear taillight ground wire melting. Dealer said that this recall was performed previously, so now I had to pay for the repair parts. NHTSA CAMPAIGN NUMBER: 14V177000
Feb 18, 2022
The rear tail light housing harness melted due to an electrical issue. This caused my rear tail light & break lights not to function.
Jul 20, 2021
STEERING,SUSPENSION,STRUCTURE
3 complaints
Non operating. No tags . No plates.
Feb 13, 2024
Rear sub frame and suspension welds have cracks and are broken a loose which when having to put on brakes suddenly cause car to servely pull and twist which can cause a bad accident or worse.
Jan 20, 2023
REAR SUSPENSION CONTROL ARM RUSTS OFF OF THE SUBFRAME. NO OTHER RUST ON THE CAR. DURING BRAKING THE CAR STEERS HARD TO THE RIGHT ALMOST CAUSING AN ACCIDENT
Jul 22, 2020
SEATS
2 complaints
While I was driving, my seat back suddenly started reclining backward. I could not make the seat stop or go forward with pushing the power seat button control. It kept reclining back, pushing into the back seat and would not stop until there was no power left. Had my child been in the seat behind me, instead of behind the passenger seat, her legs would have been crushed. I took it to a vehicle repair shop and they were able to manually put the seat back to an upright position. I have not let my child ride in the back seat after that incident yet. I just dropped the car off to the Mercedes service department near me.
Jul 24, 2024
WHEN I BOUGHT MY CAR MY PASSENGER SEAT WAS RIPPED IN THE SEAM. I TOOK MY CAR TO MERCEDES DEALERSHIP AND THEY CONTACTED MERCEDES TO SEE IF THIS WOULD BE COVERED AND MERCEDES SAID NO'I HAD TO OF CLEANED MY SEATS WITH CLEANER TO WEAR OUT THE LEATHER. I FOR 1. HAD JUST BOUGHT THE CAR AND IT WAS A ONE OWNER BEFORE ME (LEASE) AND 2. I NEVER CLEAN MY SEATS WITH ANY CLEANER AND THE R.I.P. WAS RIGHT ON THE SEAM, SO THIS TO ME WAS A DEFECT IN THE SEAT FROM THE GET GO WITH MERCEDES. THE DEALERSHIP TOOK PHOTOS SO THOSE SHOULD BE ON FILE. THIS WAS DENIED AND I HAD TO PAY OUT OF MY OWN POCKET. SECONDLY, THE SAME THING HAPPENED TO THE DRIVER SEAT'THE EXACT SAME RIP. I HAD TO PAY TO HAVE THIS FIXED OUT OF MY OWN POCKET AS WELL. I FIND IT HARD TO BELIEVE TWO SEATS WITHIN 6 MONTHS OR SO RIP IN THE SEAMS AND MERCEDES DOESN'T THINK IT'S A DEFECT ON THEIR PART. I'VE OWNED SEVERAL MERCEDES AND THIS HAS NEVER HAPPENED BEFORE LET ALONG IT HAS NEVER HAPPENED TO ME WITH ANY OF MY CARS. I WOULD LIKE FOR YOU TO LOOK INTO THIS BECAUSE I WAS NOT ABLE TO GET THE MERCEDES MANUFACTURED SEATS PUT BACK IN BECAUSE THEY WERE SO EXPENSIVE. I THINK MERCEDES SHOULD PAY FOR MY SEATS TO BE REPLACED.
Jan 01, 2018
ELECTRICAL SYSTEM,ENGINE
2 complaints
Went to work and came out and the vehicle says to remove key from ignition. Was stuck in the middle of the night in freezing temperatures and had no way to get anywhere. It’s a common problem that Mercedes knows about and is charging thousands of dollars to repair because it can only be done through them.
Feb 01, 2022
THE CAR WILL NOT START, NO POWER, NO LIGHTS, NO RADIO, NO RESPONSE AFTER INSERTING THE KEY. I TRIED BOTH KEYS AND SAME ISSUE EXISTS WITH BOTH KEYS. THE ELECTRICAL IGNITION SWITCH NEEDS TO BE REPLACED.
Jan 08, 2018
AIR BAGS,SEATS
2 complaints
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. WHILE THE VEHICLE WAS PARKED, THE HEADREST AIR BAGS BURST ON THEIR OWN WITHOUT WARNING. THE CONTACT STATED THAT AN UNKNOWN WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL. THE VEHICLE WAS TAKEN TO W.I. SIMONSON MERCEDES-BENZ (LOCATED AT 1626 WILSHIRE BLVD, SANTA MONICA, CA 90403, (855) 677-2690), BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 110,352.
Jul 22, 2019
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. WHILE DRIVING, THE PASSENGER SIDE HEADREST AIR BAG DEPLOYED WITHOUT WARNING OR IMPACT. THERE WERE NO INJURIES. THE AIR BAG INDICATOR ILLUMINATED AFTER THE AIR BAG DEPLOYED. THE VEHICLE WAS DRIVEN TO AN INDEPENDENT MECHANIC, BUT THE CAUSE OF THE FAILURE COULD NOT BE DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER AND DEALER WERE NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.
Jul 09, 2019
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,AIR BAGS
2 complaints
"TAKATA RECALL" I CONTACTED THE THE AUTHORIZED MERCEDES-BENZ DEALER HAS FAILED TO REMEDY THIS SAFETY RECALL IN A TIMELY MANNER, I HAVE CONTINUOUSLY REACHED OUT FOR YEAR AND HALF AND THE MERCEDES-BENZ DEALER CONTINUOUS TO STATED THAT THE AIR BAGS ARE ON BACK ORDER.
Mar 19, 2019
THERE HAS BEEN A RECALL ON MY AIRBAGS FOR 2 YEARS. THIS IS TOO LONG TO WAIT FOR A SOLUTION TO BE DONE WHEN I AM BEING TOLD THAT THESE AIRBAGS IF DEPLOYED CAN KILL ME OR MY PASSENGERS (WHICH ARE MY CHILDREN) I HAVE BEEN WAITING FOR A REMEDY BUT JUST KEEP GETTING TOLD THAT THERE IS ONE COMING. 2 YEARS IS LONG ENOUGH TO FIGURE IT OUT. THE SAFETY OF MY CHILDREN IS NOT SOMETHING TO MESS WITH! PLEASE MAKE THEM FIX THIS PROBLEM OR BUY THE DANG CAR BACK! THERE IS ALSO A PROBLEM WITH THE TAIL LIGHT SENSOR AND LIGHT ITSELF, IT KEEPS SAYING TO CHECK IT AND IT DIMS BUT IT'S NOT IN NEED OF REPLACEMENT.
Aug 07, 2018
AIR BAGS,ENGINE
2 complaints
TAKATA INFLATORS THE FIRST RECALL WAS FEBRUARY 2016 FOR THE DRIVER SIDE AIRBAG A REASONABLE AMOUNT OF TIME IS PAST THE PARTS WERE PROMISED IN SEPTEMBER 2018 AND NO DELIVERY. NOW A NEW RECALL OF JANUARY 2019 FOR THE PASSENGER SIDE AIRBAG INFLATOR HAS BEEN ISSUED I'M TOLD BY MERCEDES-BENZ USA THAT THE PARTS WILL BE AVAILABLE SEPTEMBER 2019 . THIS IS AN UNREASONABLE AMOUNT OF TIME GIVEN THE THREE YEARS OF THE PREVIOUS RECALL NOT BEING REMEDIED. ALSO I'M TOLD BY THE DEALERSHIP THAT THE MOTOR MOUNTS ARE COLLAPSED I CAN'T HELP BUT THINK THAT THIS IS A DEFECT ALSO SUBJECT TO RECALL.
Feb 15, 2019
TL* TAKATA RECALL. THE CONTACT OWNS A 2011 MERCEDES-BENZ C300W. THE CONTACT STATED THAT THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBERS: 16V363000 (AIR BAGS) AND 16V081000 (AIR BAGS). THE CONTACT ALSO STATED THAT THE VEHICLE FAILED TO START. THE CONTACT ATTEMPTED TO JUMPSTART THE VEHICLE, BUT WAS UNSUCCESSFUL. IN ADDITION, THE AIR BAG INDICATOR ILLUMINATED. THE DEALER AND MANUFACTURER WERE NOT CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 47,000.
Feb 13, 2019
AIR BAGS,SEAT BELTS
2 complaints
MY 2011 C-300 HAS TWO RECALLS PENDING FOR BOTH AIR BAGS (DRIVER AND PASSENGER). I HAVE BEEN COMPLAINING TO MBUSA FOR OVER 2 YEARS TO HAVE THEM REPLACED. TO THIS DAY 11/06/2017 MBUSA HAD MADE NO ATTEMPT TO CONTACT ME OR PROVIDE A SOLUTION. THE REAR SEAT-BELTS LOCKUP ON PASSENGERS AND RATCHET DOWN CONSISTENTLY WITH LITTLE MOVEMENT THEREBY REQUIRING THE PASSENGERS TO UNFASTEN THEIR BELTS AND RIDE WITHOUT THE SEAT BELT BEING FASTENED. I PURCHASED THE VEHICLE NEW AND BOTH PROBLEMS HAVE BEEN EXISTING FROM THE PURCHASE DATE MARCH 2011
Nov 06, 2017
TAKATA RECALL
Nov 05, 2017
STEERING,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM
1 complaint
The electronic steering wheel lock went out causing the car to not start. Upon checking the Internet to see if anyone else was having this problem I found that it was a problem many Mercedes Benz owners have had and it's an expensive one. It's not just with my particular model and it's not limited to older models of the brand either.
Aug 25, 2025
STEERING,UNKNOWN OR OTHER
1 complaint
I drove vehicle to Publix with no problems. When i tried to start vehicle, key turns but car does not start. There is no cranking sound. I called a mechanic friend and after extensive diagnosis he determined it was the ESL Module which controls the steering. Fortunately i was not driving the vehicle when the ESL Module failed. There is a recall on Mercedes Benz c300 from 2012-2017 for the ESL Module problems but the 2011 is not included. It should be recalled since it is a safety hazard and it appears others have had similar problems according to comments on Google. I have a handicapped wife i take care of and having issues with the steering can cause accidents and injuries. There were no messages or symptoms of the problem prior to the failure. There needs to be a recall or further inspection done on the 2011 Mercedes Benz c300. Car will be towed to a Mercedes Benz dealership for Diagnostics.
Jun 12, 2025
STRUCTURE,UNKNOWN OR OTHER
1 complaint
Rear subframe , so I went in for an alignment and was quickly notified and denied service due to my rear sub frame being broken. Car is reported to be unsafe by the tire company.no lights etc. My family and I could of seriously been hurt. I can retrieve a statement from dun tire in auburn and from mercedes. They are charging me 641.00 and I'm without a vehicle for 2wks
Nov 11, 2024
AIR BAGS,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM
1 complaint
1.What component or system failed or malfunctioned, and is it available for inspection upon request? The fuel system failure is a highly critical safety concern, and my life is at risk. It causes malfunctions with the vehicle, for example, the OBD-based emissions test has flagged a lot of (codes P219A, P0300, P0304, P0410, P0305, P0303, P0171, P0301) 5 of the cylinder misfire codes with the check engine light on, as well affecting other parts in the vehicle function properly, acceleration issues, car stalling as though it’s going to shut off. This is a serious matter and Mercedes-Benz is failing to prioritize customer safety, over cost especially when known faults in the vehicle can lead to potentially life-threatening incidents such as fuel leaks and fire hazards. Yes, the vehicle is available for further inspection upon request immediately each day my life is at risk. 2.How was your safety or the safety of others put at risk? My safety and other's safety are put at risk every time I get out on the road to drive my car it's putting me and other' live in serious danger (especially with the extreme increase in car accidents in the local Nashville, TN area). Despite the vehicle now being 3,000 miles over the 150,000-mile extended warranty threshold. I recently purchased the car on [XXX] and was not made aware of Mercedes Benz having any extended warranty coverage for the faulty fuel system that Mercedes-Benz had placed on this model. I can only assume the previous owner the car was reposed from was also unaware of this as well. I believe Mercedes-Benz should still cover the cost of this repair. The fuel system failure is a critical safety concern, and Mercedes-Benz should prioritize customer safety, especially knowing there were faults of poor quality that they discovered with their vehicles and can lead to potentially life-threatening incidents such as fuel leaks and fire hazards. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Oct 23, 2024
STEERING,UNKNOWN OR OTHER,ENGINE
1 complaint
The car is not starting. no dashboard no lights no window function no seat function no radio. nothing. Ignition lights are not turning on and the car is dead. Car batteries were newly replaced but understand this could be EIS and Steering lock issues which is common in Mercedes Benz models. Why is Manufacturer not compensating / correcting for common errors on his Models?
Jun 10, 2024
SERVICE BRAKES, HYDRAULIC,ELECTRONIC STABILITY CONTROL (ESC)
1 complaint
The contact owns a 2011 Mercedes-Benz C300. The contact stated while driving at an undisclosed speed, he became aware that the brakes were not functioning properly. The contact had to pump the brake pedal to bring the vehicle to a complete stop. The cruise control, ABS, and traction control warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic; however, the vehicle was diagnosed with a failure with the electronic stabilizing program control unit. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 84,000.
May 24, 2024
ELECTRICAL SYSTEM,UNKNOWN OR OTHER
1 complaint
my ESL (electronic steering lock. ) has went out when I did research this something that always happened please fix
May 10, 2024
ELECTRICAL SYSTEM,AIR BAGS,UNKNOWN OR OTHER
1 complaint
The sam box (electrical system fuze panel) located under the hood is in a spot where if the lid isn't on correctly water will drain from the windshield right into the sam box and cause the vehicles electrical system to deploy the steering wheel airbag. That's at least what happened to me. It was raining out that day and I guess I went over a bump that caused the lid of the sam to get out of place. I drove home and the car seat for a few hours. I went out upon unlocking the door as soon as I pulled the handle to open the driver side door the steering wheel airbag blew and the vehicle is now in srs mode. The dealership had told me that it's a design flaw but wants me to pay for the diagnostic. No lights were on and I did not file a police report.
Feb 21, 2024
SUSPENSION,STRUCTURE,UNKNOWN OR OTHER
1 complaint
2011 C300 4matic Sport I'm very concerned about the front subframe after going over the invoice and everything that was replaced on the rear subframe due to a recall Mercedes issued. But wait doesn't the whole subframe have severe rust corrosion all throughout yes it does per mechanic/technician. I'm having steering issues while driving the vehicle when applying the breaks the vehicle pulls very hard to the left the whole car swerves to the left very dangerously. After getting it checked out the mechanic/ technician pointed out that the control arm snapped from the Front subframe due to severe corrosion. I'm not understanding how the recall was only for the rear subframe only. The whole entire subframe is severely rusted. Front subframe which may experience premature wear of the front axel carrier and a fracture risk, potentially resulting in sudden loss of steering control. After internal endurance testing determined the front axle carrier supplied for certain Mercedes SUV’s and cars may weaken prematurely. An investigation revealed the root cause of the problem was due to a manufacturing defect in which the parts did not receive proper corrosion protection. My front subframe did not receive the proper corrosion protection. It's available for inspection. It's currently still at the dealership due to being unsafe to drive. I'm having steering issues while driving the vehicle when applying the breaks the vehicle pulls very hard to the left the whole car swerves to the left very dangerously. The problem has been reproduced or confirmed by a dealer or independent service center. The vehicle or component has Not been inspected by the manufacturer, police, insurance representatives. Only Dealer and independent service center did the inspection. No warning indicators no other symptoms, this issue took place around February - March of 2023. When I received the letter about the subframe recall I was excited thinking the issue would be fixed. But No it's unsafe
Aug 22, 2023
UNKNOWN OR OTHER,ENGINE,FUEL/PROPULSION SYSTEM
1 complaint
There is a crack in the flange causing a fuel leak in my C300 2011 Mercedes-Benz built March 2011. A strong gas smell fills the car. This situation is extremely dangerous and should be included in the recall that was approved for vehicles C300 manufactured from April 2011-July 2011. Please include my vehicle in this recall. There is only a one month difference.
Jul 21, 2023
ENGINE
1 complaint
The contact owns a 2011 Mercedes C300. The contact stated that while driving approximately 15 MPH the check engine began flashing and the vehicle stalled. The contact attempted to restart the vehicle and smoke was observed emanating from the front driver's tire. The contact stated that the fire exploded from the engine compartment. Additionally, the contact stated that she was locked in the vehicle by the driver's seatbelt, but was able to get out of the vehicle. The fire department extinguished the fire and a report was taken. There were no injuries sustained. The vehicle was towed to a salvage lot. The contact was not sure if the vehicle restarted. The manufacturer was not notified of the failure. The failure mileage was approximately 120,000.
May 15, 2023
STRUCTURE,VISIBILITY
1 complaint
The contact owned a 2011 Mercedes-Benz C300. The contact stated that upon entering the vehicle, he noticed that the inside of the vehicle was flooded with water. The contact then stated that he noticed that water had leaked from the sunroof and entered the cabin of the vehicle. The contact stated that several unknown warning lights were intermittently illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the wiring harness was severely damaged and could not be repaired. The dealer was not notified of the failure. The vehicle was not repaired. The vehicle was deemed a total loss by the insurance company. The manufacturer was notified of the failure and the contact was provided a case number. The failure mileage was 82,242.
Mar 28, 2023
STEERING,SUSPENSION,ELECTRICAL SYSTEM
1 complaint
Car slow down and stop and cannot start in traffic….
Mar 27, 2023
STEERING,AIR BAGS
1 complaint
Hi, I dropped off my car with Mercedes-Benz Dealership in Egg Harbor Twp, NJ back on Dec 21, 2022 and still waiting on recall to be fixed and while I'm without ever since that. Please look into this recall.
Feb 17, 2023
STEERING,POWER TRAIN,ENGINE
1 complaint
Electronic steering locks are failing in these cars at an alarming rate. When it fails, the car will be stranded or if driving the car will completely lock the steering and take away control from the driver. This is a safety issue that Mercedes should be recalling and fixing because it will take people's lives away. Mercedes is aware of this issue but is failing to recall it and considering it as non-safety. When manufacturing the Electronic Steering lock, Mercedes used cheap parts that are prone to failure. This issue affected many years and models of their cars but only recalled a few cars. Once failure occurs, the car will not start and it will be required to tow it to a dealership where repairs over $2000 will be needed to fix this SAFETY issue.
Feb 01, 2023
SUSPENSION,POWER TRAIN,SERVICE BRAKES
1 complaint
The subframe and the brake lines are very faulty in this car when it comes to its design. The subframe and brake lines rust easily and are cheaply made for this car. My car break down while driving making it hard to have pressure on the brakes. My incident was around the school area. There were no accidents or collisions Involved. It could happen to adults and children. The dealer never confirmed this problem before selling it to me. Another manufacturer told me about this problem. The car showed warning signs like the braking system and brake fluid. The brake fuel was leaking. The problem appeared when I started the car.
Nov 27, 2022
STRUCTURE,SUSPENSION
1 complaint
Rusted left rear ear of rear subframe.
Oct 19, 2022
STEERING,STRUCTURE,SERVICE BRAKES
1 complaint
08/15/2022 (date statement was wrote not date of incident) While driving into work at 50 miles an hour, traffic started to slow. While applying brake heard loud pop and vehicle rear end lounged right making steering difficult, I immediately released the brake and control came back I then gently applied the brake again to slow vehicle and felt slight clump from rear. This was very disconcerting my vehicle never had performed in that manner which made me feel very uncomfortable continuing driving, I had mechanic look at vehicle and was told the rear subframe had rusted and the rear left control arm broke away from frame??? My vehicle is very well maintain and just a little over 11 years old. Feeling belittled I began investing Mercedes’ forums and found this has been an issue with some of not all models and nothing has been done to correct this defect. I contacted Mercedes’ Benz and the service department knew exactly what it was and stated the is no recall on these failing subframe due to rust. This is a very serious safety issue due to the fact of loosing control of the vehicle when this component fails possibly causing serious injury or even death. To put insult to injury Mercedes has no plan to replace it and it’s left to the consumer to replace this non maintenance item. Looking into forums about this issue these subframes have failed at almost every odometer mileages, particularly the w204 chassis 2008-2014. A safety recall should be advised to the consumers whom own such vehicles!! Safety First!!!!!!!!! Respectfully, [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Aug 15, 2022
STEERING,WHEELS,SERVICE BRAKES
1 complaint
The rear subframe is rusted and broken, alignment is out, and steering wheel is off centered. Given the history of this model car, it has been under recall in multiple countries outside the United States. This is a common and very dangerous issue that needs to be addressed in the United States because if you call any auto shop or Mercedes they all say it is a common problem with 2008-2014 C-class models. When you look up this issue with this car it has multiple threads saying that the rear subframe has rusted and broke when it is not supposed to.
Jul 07, 2022
STEERING,SERVICE BRAKES
1 complaint
My 2011, 300C has 116,000 miles. Driving the car I notices that when I applied brakes car swayed to the left. Concerned I brought vehicle to MB in Paramus, NJ. Was told that rear sub-frame was rusted and dislodged along with the brake lines, also rusted. Car was serviced every 10k miles as recommended by dealer and just now these issues were identified. I recently also was told that the fuel tank was also rusted out and needed to be replaced. These issued were a danger to me and my family and could have resulted in potential deaths. MB does not have any recalls for these problems but I believe NHTSA should initiate a recall as many others have had these problems. A google search has identifies a large number of people having these same problems. Below are 2 videos of the problem. https://app.mykaarma.com/service-cart/mpi/BfGpB6lKrWaYxN3TKQFzqa2MgCzxYgihmma6Ker7cFE/check/Your_CAR_CHECK_ID/media/0/view/1 https://api.mykaarma.com/video-walkaround/details?inspection_uuid=629e0e431dd41d3dfba54fd1&fileType=video No warnings messages or previous symptoms occurred and even though car was serviced every 10k miles, dealer Neve identified any of the concerns. How can that be when brake lines are rusted. Dealer refuses to take any responsibility and MB Germany has yet to respond to my various emails. Please review as these issues have life and death implications and a Recall should be initiated by NHTSA.
Jun 06, 2022
POWER TRAIN,STRUCTURE
1 complaint
On July 1, my daugther who is driving the car since about 8 months noticed a strange noise coming from the rear of the car. Since I was in Europe at that time I could not give her any assistance. On July 16 we both took a drive to Rhode Island to visit a college. I was the one driving, and I could also hear the noise coming from the rear. On the highway there was a back-up developing and I had to hit the brakes a littler harder. In doing so. the car was very unstable and it look like if the rear was going to overtake the front of the car. I was very scary even for myself who is a long time experience driver. After returning home I took the car to a mechanic and have him look at it. The resulting diagnosis revealed that the subframe was completely rusted out and was about to get disconnected from the under carriage of the car at any moment. The mechanic had a hard time to find a replacement part, and was finally able to locate an OEM subframe in California, the only one in the US. The price for the part alone was $1,500. I had no choice other than to have the car repaired at the mechanic since it was at that time undrivable. The total repair was almost $3,200. I took 2 pictures of the replaced subframe (see attached). The car is a 2011 MB C300-4-matic with just 100,800 miles on it. The was purchased used, with about 12,000 miles, in Febr. 2012 from Mercedes Benz of Westford, MA, which had used the car as a loaner/company car. The car was well maintained, used up until 2020 by my daughter's mother. She then bought herself another, newer C300 (2017 model) and decided to gift her older car to the daughter instead of trading it in. We thought, we knew a lot about the car and considered it a low risk transfer for a new, still learning driver. I will also file a formal complaint with Mercedes Benz if I have figured out the correct contact point. The internet shows, other people have experienced similar situations. And eventually, see also your ID-# 10504684 and 11023618.
Aug 03, 2021
VEHICLE SPEED CONTROL
1 complaint
2011 MERCEDES BENZ C300. CONSUMER WRITES IN REGARDS TO UNINTENDED ACCELERATION. *LD THE CONSUMER STATED THE VEHICLE ACCLERATED OVER A CEMENT PARKING BARRIER AND INTO A TREE. THE DEALER WAS NOTIFIED.*JS
Oct 02, 2020
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,ELECTRONIC STABILITY CONTROL (ESC)
1 complaint
IT WAS MY IPHONE THAT GOT HACKED FIRST, THERE WERE THESE HEAT LASERS STARTED TO TARGET ME, ONE DAY I WAS SLEEPING IN MY CAR, THE CAR WAS PARKED IN A PARKING GARAGE, THE CAR WAS TURNED OFF AND ALL OF A SUDDEN THE CAR JUST STARTED DEFROSTING. YES, MY DEFROSTS CAME ON AND MY WINDOWS BEGIN TO FOG UP. NEXT, I STARTED TO NOTICE THOSE SAME "HEAT LASERS" THAT WERE TARGETING ME FROM MY IPHONE ARE CONSTANT ON MY HEAD AND STOMACH WHILE I'M DRIVING MY CAR. ALSO, A SYMBOL STARTED TO APPEAR ON MY DASHBOARD, LATER DISCOVER IT WAS THE "AUXILIARY BATTERY" ., THEN MY LIGHTS ARE ALWAYS FLICKING, AND WHEN I HAVE THE HEAT OR AIR CONDITION ON, THEY ARE NOT AS COLD OR HOT, THE TEMP WAS BEING TAMPERED WITH, AS IF THE CAR WAS ADJUSTING THE CONTROLS. NOW, A GREEN LIGHT SYMBOL IS CONSTANTLY APPEARING ON MY DASHBOARD, SO THE HACKERS WERE USING MY "AUXILIARY BATTERY" , NOW THEY ARE USING THE "LIGHTS" ON MY CAR TO TARGET ME NOW. YES, THIS HACKER, HACKED AND IS ATTACKING ME WITH SOME TYPE OF LASER WHILE DRIVING MY CAR. THIS HAPPENED FEBUARY 11, 2020 WHEN MY CAR BEGIN TO DEFROST ON ITS OWN. NOW, IM IN THIS NIGHTMARE, AT THE HANDS OF A HACKER TARGETING ME, WITH SOME "HEAT LASERS" I FILED A COMPLAINT WITH THE FBI (INTERNET CRIME COMPLAINT CENTER) BECAUSE OF THE HEAT LASERS, I'VE BEEN EXPERIENCING WHILE DRIVING. I HAVE BEEN TO THE DOCTOR ON SEVERAL OCCASION DUE TO THE 'HEAT LASER TARGETING MY BODY/ORGANS., ON 04/17/2020.
Apr 27, 2020
UNKNOWN OR OTHER,FUEL/PROPULSION SYSTEM
1 complaint
VEHICLE CONTINUOUSLY EMITTING GAS VAPORS INSIDE VEHICLE AND LEAKING GAS INSIDE BEHIND AND/OR UNDERNEATH BACK DRIVER SIDE SEAT. VIN (XXXX) REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Mar 01, 2020
STEERING,ENGINE
1 complaint
THE ESL STEERING LOCK MALFUNCTIONED. THIS CAUSES THE CAR NOT TO START. I HAD THE AIRBAGS REPLACED DUE TO RECALL ABOUT 3 WEEK SALES EARLIER. THE CAR WAS WORKING PROPERLY THE DAY BEFORE AND THE NEXT MORNING THE CAR WON'T START AND A MESSAGE COMES UP ABOUT REMOVING THE KEY.
Dec 20, 2019
ELECTRICAL SYSTEM,UNKNOWN OR OTHER,ENGINE
1 complaint
MY CAR SOUND LIKE THE POWER STEERING HAS GONE IT'S VERY LOUD. ALSO SECONDARY AIR FLOW JUST REPLACED AND NOW IT'S GOING TO NEED ANOTHER ONE AT 2000 A POP. FINALLY THE ELECTRICS IS VERY WEIRD. LIGHTS WILL GO OUT THEN COME BACK ON. MY DAY TIME RUNNING LIGHTS STAY ON DAY AND NIGHT NO MATTER WHERE I TURN THE LIGHT SWITCH. THE DAY TIME RUNNING LIGHT IS ON EVEN WHEN I TURN ON HIGH BEAMS. NO MATTER IF IT'S MOVING OR NOT ALL THESE THINGS ARE HAPPENING.
Nov 28, 2019
AIR BAGS,ELECTRONIC STABILITY CONTROL (ESC)
1 complaint
THE RINGS USED TO DETERMINE WHEEL SPEED FOR THE STABILITY SYSTEM FAIL, THIS HAS HAPPENED TWICE TO MY CAR AND CAN RESULT IN THE BRAKES BEING APPLIED WITHOUT WARNING. ALSO TAKATA AIR BAGS HAVE NOT BEEN REPLACED IN THE THREE YEARS AFTER THE RECALL.
Mar 08, 2019
ELECTRICAL SYSTEM,AIR BAGS,ENGINE
1 complaint
1. TAKATA RECALL: THIS RECALL OF A DANGEROUS SITUATION HAS BEEN GOING ON FOR ABOUT TWO YEARS NOW IS UNACCEPTABLE AND HAZARDOUS TO EM AND MY FAMILY. 2. LAW SUIT: GREG SUDDRETH AND PAUL DENTON V. MERCEDES-BENZ USA, LLC. ON 10/30/17, I HAD TO PAY 3445.13 FOR A REPAIR MY BALANCE SHAFTS GEARS, WHICH WE'RE DEEMED DEFECTIVE IN ALL M272 ENGINES WHICH IS IN MY C300. HOWEVER, IN THE ABOVE MENTIONED LAW SUIT, THIS PROBLEM WAS SUPPOSED TO HAVE BEEN CORRECTED. WHEN I BROUGHT THIS TO THE ATTENTION TO THE MERCEDES-BENZ OF MODESTO TECHNICIANS, THEY SAID I MISSED THE CUT-OFF DATE BY ONE YEAR. THEY ACKNOWLEDGED I HAD THE SAME PROBLEM AND CHECKED TO SEE IF I QUALIFIED FOR A FREE REPAIR, BUT LATER CLAIMED, THE ISSUE WITH THE DEFECTIVE BALANCE SHAFTS GEARS HAD BEEN ADDRESSED. HOW CAN THAT BE WHEN I INCURRED THE SAME PROBLEM. THE REPAIR SHOULD HAVE BEEN REPAIRED UNDER WARRANTY. I EVENTUALLY HAD TO HAVE THE CAR REPAIRED AT MERCEDES OF PLEASANTON BECAUSE MODESTO DIDN'T HAVE ANY OPEN APPOINTMENTS. THANK YOU FOR YOUR ATTENTION IN THIS MATTER. 3. FAULTY ELECTRONIC STEARING LOCK: ENGINE WON'T TURN ON AND STEEARING WHEEL IS LOCKED. SEVERAL PEOPLE HAVE HAD THIS SAME PROBLEM. MERCEDES CLAIM NOT A SAFETY ISSUE, BUT WHEN YOUR DAUGHTER GETS STUCK AT MIDNIGHT AT AN AMUSEMENT PARK ON HIGH SCHOOL SENIOR NIGHT...THAT'S A SAFETY ISSUE. THANK YOU FOR YOUR ATTENTION IN THIS MATTER.
Jan 15, 2019
POWER TRAIN,AIR BAGS
1 complaint
MY CAR HAS TWO RECALLS FOR THE AIRBAGS WHICH MEANS MY CAR CAN NOT BE TRADED IN BECAUSE IT'S NOT RESALEABLE. THESE RECALLS ARE NOT MINORITY'S AND WE RISK SERIOUS INJURY OR POSSIBLE DEATH BECAUSE MERCEDES CAN FIX THE PROBLEM. REASSURANING KNOWING IF YOU'RE EVER IN AN ACCIDENT YOUR AIRBAGS MAY DISTINCTION DURING IMPACT OR BE THE REASON YOU DIE. I'M STUCK WITH THIS CAR UNTIL THE REMEDIES ARE AVAILABLE, BUT I'M ALSO STUCK WITH RISKING MY LIFE. I STARTED HAVING TRANSMISSION PROBLEMS WITH HESITATING TO SPEED UP FROM A STOP OR SLOWER SPEED. THE DEALERSHIP SAID IT WAS MY INTAKE MANIFOLD FLAP THAT NEEDED TO BE REPLACED. OF COURSE THAT WASN'T THE PROBLEM AND IT'S GETTING WORSE. I HAD IT LOOKED AT AGAIN TO BE TOLD NOTHING WAS WRONG AND NO CODES WERE DISPLAYED DURING THE DIAGNOSTIC CHECK. MEANWHILE MY CAR GETS WORSE BY THE WEEK AND MY TRANSMISSION FEELS LIKE SOMETHING IS CLEARLY WRONG. FOR THE THIRD TIME I HAD IT CHECKED AND THIS TIME HAD A TECHNICIAN RIDE WITH ME. HE NOTED THE HESITATING FEELING WHILE DRIVING AND VALIDATED MY CONCERNS. HE SAID HE PERSONALLY BELIEVES MY TRANSMISSION IS MALFUNCTIONING BUT MERCEDES IS COVERING THEIR TAILS. HE SUGGESTED I TAKE IT TO A PRIVATE MECHANIC WHO SPECIALIZES IN MERCEDES UNLESS I WANT TO PAY $9,000 TO MERCEDES TO BE TOLD A RANGE OF THINGS NEED TO BE FIXED AND THE PROBLEM NEVER BE SOLVED. ABSOLUTE RIP OFF AND I'LL NEVER BUY MERCEDES AGAIN.
Sep 27, 2018
POWER TRAIN,UNKNOWN OR OTHER
1 complaint
I WASN'T DRIVING DOWN THE HIGHWAY AT 60 MPH AND THE CAR WENT INTO NEUTRAL BY ITSELF AND STAYED THERE IN THE MIDDLE OF THE ROAD. THE CAR WOULDN'T MOVE AT ALL AND HAD TO PULL OVER TO THE HARD SHOULDER AND RESTART THE ENGINE. THIS HAPPENED TO ME 4 TIMES IN TOTAL. I SCANNED IT AND THEY SAID IT'S THE SPEED SENSOR INSIDE THE CONDUCTOR PLATE WHICH ENTIRELY NEEDS TO BE REPLACED AND REPROGRAMMED BY MERCEDES. THIS IS A SAFETY ISSUE BECAUSE A CAR GOING INTO NEUTRAL IN THE MIDDLE OF THE HIGHWAY IS DANGEROUS TO OTHER DRIVERS WHICH CAN CAUSE AN ACCIDENT THAT CAN TAKE YOUR LIFE. MANY OTHER CARS WITH THE 722.6G TRANSMISSION HAS IT AND MERCEDES KNOWS ABOUT IT. BY THE WAY, THE VEHICLE WASN'T IN MOTION WHILE ALL THESE INCIDENTS OCCURRED.
Aug 09, 2018
STEERING,POWER TRAIN,AIR BAGS
1 complaint
NO NO FIX
Nov 06, 2017
ELECTRICAL SYSTEM,AIR BAGS
1 complaint
TL* TAKATA RECALL. THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. THE CONTACT STATED THAT THE VEHICLE FAILED TO START WHEN THE KEY WAS TURNED OVER IN THE IGNITION. THE DEALER (CARLTON MOTORCARS, 2446 LAURENS RD, GREENVILLE, SC 29607, (864) 213-8000) DIAGNOSED THAT THE ELECTRONIC EMISSIONS SWITCH NEEDED TO BE REPLACED. IN ADDITION, THE VEHICLE WAS INCLUDED IN NHTSA CAMPAIGN NUMBERS: 16V081000 (AIR BAGS) AND 16V363000 (AIR BAGS). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE CONTACT WAS TO CHECK TO DETERMINE WHEN A DEALER COULD SCHEDULE THE RECALL REPAIRS THE APPROXIMATE FAILURE MILEAGE WAS 78,000. VIN TOOL CONFIRMS PARTS NOT AVAILABLE. UPDATED 08/22/17*LJ *CN
May 30, 2017
TIRES
1 complaint
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. THE VEHICLE WAS EQUIPPED WITH CAPITOL SPORT UHP (NA) TIRES, SIZE 245/40RI7 (NA), MODEL: F40247034. WHILE OPERATING THE VEHICLE, THE TIRE PRESSURE MONITORING SYSTEM SENSOR REMAINED ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE FAILURE WAS CAUSED BY MULTIBLE CRACKS LOCATED ON THE OUTER WALL OF THE FRONT PASSENGER AND DRIVER SIDE TIRES THAT ALLOWED AIR TO LEAK OUT. THE FAILURES WERE NOT REMEDIED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURES. THE VIN AND VEHICLE FAILURE MILEAGE WERE UNKNOWN. THE TIRE FAILURE MILEAGE WAS 18,000.
Apr 26, 2017
EXTERIOR LIGHTING,AIR BAGS
1 complaint
TL* TAKATA RECALL. THE CONTACT OWNS A 2011 MERCEDES-BENZ C300. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V177000 (EXTERIOR LIGHTING). THE DEALER INDICATED THAT THEY WERE ABLE TO SCHEDULE THE REPAIR APPOINTMENT. THE CONTACT ALSO RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 16V081000 (AIR BAGS) AND 16V363000 (AIR BAGS), BUT THE DEALER AND MANUFACTURER HAD BEEN UNABLE TO DETERMINE WHEN THE PARTS WOULD BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.
Aug 15, 2016
STEERING,STRUCTURE,UNKNOWN OR OTHER
1 complaint
THIS IS A WELL DOCUMENTED ACCIDENT AS IT INVOLVED A POLICE CHASE OF A FELON WHO RAN A RED LIGHT AT APPROXIMATELY 50 MPH. MY CAR WAS HIT ON THE LEFT FRONT SIDE AND IS DEEMED TOTALED. NO AIR BAGS DEPLOYED IN MY VEHICLE AND I REQUIRED EMERGENCY TRANSPORT TO THE LOCAL HOSPITAL EMERGENCY ROOM. THIS ALSO INVOLVED A POLICE SHOOTING INCIDENT WITH THE DEATH OF THE OTHER DRIVER. THE VEHICLE IS PENDING TOWING TO A SALVAGE YARD.THE PRIMARY CONCERN IS A QUESTION OF DEFECTIVE AIR BAG DEPLOYMENT AND FUTURE POTENTIAL INJURY TO OTHERS.
Sep 09, 2015
AIR BAGS,VEHICLE SPEED CONTROL,SERVICE BRAKES
1 complaint
TL* THE CONTACT OWNED A 2011 MERCEDES BENZ C300. WHILE AT A STOP, THE ACCELERATOR PEDAL WAS APPLIED AND THE VEHICLE VIOLENTLY ACCELERATED TO 30 MPH. THE BRAKE PEDAL WAS DEPRESSED, BUT FAILED TO RESPOND CAUSING THE CONTACT TO CRASH INTO THE REAR END OF ANOTHER VEHICLE. THE STEERING WHEEL AND THE STEERING COLUMN AIR BAGS DEPLOYED. AS A RESULT, THE CONTACT SUSTAINED KNEE AND BACK INJURIES THAT REQUIRED MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 10,000.
Sep 08, 2015
ENGINE AND ENGINE COOLING
1 complaint
I BOUGHT THIS CAR NEW IN 2011. AFTER A COUPLE OF MONTHS, STARTED NOTICING A ROTTEN EGG ODOR COMING FROM MY CAR. THE SMELL SEEMS TO COME FROM UNDERNEATH THE CAR. USUALLY OCCURS WHEN I'M GOING 45MPH OR MORE GOING UP A HILL ON A HIGHWAY. TOOK IT TO THE DEALER TO CHECK, SO THEY TOOK THE CAR FOR A TEST DRIVE AND SAID THEY FOUND NO ODORS WHICH I DON'T UNDERSTAND WHY? THEY SAID IT MIGHT BE THE TYPE OF FUEL I USE FOR THE CAR MAY AFFECT IT, BUT I USE PREMIUM GAS ONLY FROM CHEVRON. MERCEDES REALLY NEED TO LOOK INTO THIS, BECAUSE THE SMELL IS HORRIBLE! I'VE BEEN DEALING WITH THIS SMELL FOR ALMOST THREE YRS. NOW. *TR
Jul 04, 2014
Frequently Asked Questions
How many problems does the 2011 MERCEDES-BENZ C-Class have?
The 2011 MERCEDES-BENZ C-Class currently has 514 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 2011 MERCEDES-BENZ C-Class?
The most common problems reported for the 2011 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 2011 MERCEDES-BENZ C-Class problem data come from?
All problem and complaint data for the 2011 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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