Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

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really awful
Crashes / Fires:
3 / 0
Injuries / Deaths:
2 / 0
Average Mileage:
26,844 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2010 Mercedes-Benz C300 engine problems

engine problem

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2010 Mercedes-Benz C300 Owner Comments

problem #4

Apr 142016


  • 63,000 miles


After backing out of handicap parking space and moving forward at a slow speed my vehicle was rear-ended, at which point the vehicle forcefully accelerated forward independently without warning and crashed into another parked vehicle (forcefully moving this vehicle approximately three feet) the vehicle continued to speed through the handicap parking lot as I continued to brake without results of stopping. This vehicle ran through a stop sign and into the front entrance road of the va hospital.( this road has heavy traffic and pedestrian usage) the only way to stop my vehicle was to jump the curb and run into a tree. I feel very fortunate that my vehicle was the only thing damaged. This could have been a devastating event if disabled wheelchair persons or pedestrians had been in the path of this occurrence. I am reporting this to say that this has happened to other C300 2010 Mercedes Benz and needs to be investigated as a serious safety issue. This could cause deaths. I have a witness to my brake lights going on and off as I tried to stop this car.

- Keystone Heights, FL, USA

problem #3

Jun 172014


  • 31,935 miles
The contact owns a 2010 Mercedes Benz C300. While driving approximately 20 mph, the vehicle accelerated independently without warning. The vehicle failed to slow down and crashed into a curb. As a result, the two rear seat passengers sustained minor lacerations. A police report was filed and no medical attention was required. The vehicle was towed to the dealer where the front end body damages were repaired. The manufacturer was notified of the failure. The approximate failure mileage was 31,935. The VIN was unavailable.

- Jonestown , PA, USA

problem #2

Jul 182011

C300 6-cyl

  • 6,664 miles
On July 18, 2011, I was waiting in a line of traffic for a signal light to change, and as the vehicle in front of me began to move, I took my foot off the brake and my 2010 Mercedes Benz C300 lurched forward and rearended the vehicle in front of me. The forward motion was very forceful and the impact was heavy. This was unintentional acceleration, as I had not depressed to accelerator and while I am deemed at fault I feel this movement is definitely related to another incident in this vehicle reported on May 21, 2011. Please refer to ODI # 10403924. Mercedes Benz Corp says there is nothing wrong with this vehicle. I would like an investigation to this problem, since there is evidence others have reported the same problem.

- Corona, CA, USA

problem #1

May 202011


  • 5,777 miles
I was entering the Ontario South bound on ramp to the I 15 freeway, in my 2010 C300 Mercedes Benz, when the engine surged to 6000 rpms and I let up on the gas, coasted, and when I applied the accelerator, it surged again. This happened 3 times, and each time I coasted until I could get off the freeway at the next off ramp. I then applied normal pressure to continue and the car proceeded in a normal manner, so I drove to a shopping center and started to pull into a parking space when the engine accelerated again to 6000rpms, and I flew over a planter area, removing my foot from the accelerator and missing a tree and a pole. I came to a stop by making a hard left turn and braking so I wouldn't hit the wall of the building. There was damage to my tires and wheels and the dealer, after having the car in the shop for over a week, says there is nothing wrong with it. This vehicle has 5700 miles on it, and is under warranty, but the company would not honor warranty by saying they couldn't find anything wrong. My insurance had to pay for damage caused by the unintended acceleration of this vehicle. I am now afraid to drive this car, because I have fear this will reoccur, and someone may be seriously hurt.

- Corona, CA, USA

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