2011 MERCEDES-BENZ C300 Complaints

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.

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.

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.

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.

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).

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.

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.

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.

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..

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.