2011 Mercedes-Benz C300 Brakes Problems

“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).”

“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. …”

“Rear brakes backing plates rotted prematurely despite garage kept and well maintained status. While driving, noticed loud scraping and grinding noises from the rear left wheel. Took to mechanic and he found severe rust, with deep corrosion and flaking rotted . He said I was lucky because this was very close to causing the entire brake assembly to fail, which would lead to serious braking problems or locked out wheel and loss of control on a highway which would have put me and others at risk. …”

“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. …”

“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. …”