2010 Mercedes-Benz C300 engine problems

Filed Feb 12, 2026 · Airbags, Electrical · 97,000 miles · MD

The contact owns a 2010 Mercedes-Benz C300. The contact stated that the battery and alternator were being drained. The check engine warning light was illuminated. Additionally, the front air bag sensor message and a fog light message were displayed. The vehicle was towed to an unknown local dealer; however, the dealer was unable to determine the cause of the failure. The contact then reached out to Mercedes-Benz of Tysons Corner Service and Parts, located at 8545 Leesburg Pike, Vienna, VA 22182, and was informed about a diagnostic test to determine the cause of the failure. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 97,000. The VIN was not available.

Filed Mar 20, 2021 · Airbags, Engine · 171,500 miles · CA

Aug 12, 2020 took c300 to fletcher jones motorcars of fremont. I paid for them to do an oil & filter change after they did perform recall 2018120017 ~ 18p9193104 cause: recall 2019120027. Paid $204.65 that day. 01/21/21- after driving, w my significant other, at city speed limit to fedex which is 1 mile from my house on same street, and back, my sig other couldn't put back the seat and the airbag lights were on. I had to drive to work next day, unsafe...pressed up against steering wheel because I'm 6 feet. Somehow that went away. 03/09/21- I took in the car, by tow truck, back same place fletcher jones and had a bee service per manufacturers specifications service dealt on my car they performed be service with brake fluid flush numerous other stuff I'm also reported to them a misfiring because I did hook up an obd2 but during their road test they just noted a strong vibration from the driveline they ran a quick test found no fault but noted collapsed backslash worn motor and transmission mounts and recommend replacement they also noted voltage related faults however the alternator and battery would pass their tests and they released my car to me after charging me $576.97. Today, 03/19/21- had to tow my car again from approximately three blocks away because it just turned off on me with a message brake SRS edt, and something about it failing. Now...im stuck because mercedes screwed me!

Filed Dec 13, 2020 · Electrical, Engine · 155,500 miles · NH

Security system disables ignition due to a failure of the esl (steering lock). Nothing is wrong with the car it just won't start.

Filed Oct 26, 2020 · Engine, Transmission · 140,000 miles · MO

Tl* the contact owns a 2010 mercedes-benz c300. The contact stated that the vehicle stalled at start-up and while driving at various speeds. The battery failure warning light illuminated on the instrument panel. The vehicle was not taken to an independent mechanic nor a dealer to be diagnosed nor repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 140,000.

Filed Dec 8, 2017 · Engine, Fuel system · 70,000 miles · MS

Tl* the contact owns a 2010 mercedes-benz c300. While driving, the engine warning indicator illuminated and a fuel odor entered the vehicle. The vehicle was taken to mercedes-benz of south mississippi (11619 bobby eleuterius blvd, d'iberville, ms 39540), but the failure could not be duplicated. Days later, the failure persisted. The vehicle was taken back to mercedes-benz of south mississippi, but the cause of the failure could not be diagnosed. The vehicle was not repaired. The vehicle was taken to an independent mechanic where they informed the contact that there was liquid gas formed on top of the fuel pump and a seal needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 70,000.

Filed Nov 7, 2016 · Driver assistance, Engine · 50,000 miles · TX

The check engine light comes on dealing with the catalytic converter/fuel system. The sensors are off causing the emission of too much gas. The car runs out of gas fast and does not drive well to get good gas miles per tank. The car's exterior lights also go out fast. This should not happen with a top of the line mercedes car.

Filed Jul 20, 2016 · Electrical, Engine · 110,025 miles · NJ

Car wont start, replaced battery, common issue with c300 told by the dealership it would cost $1332 for steering lock to start 5.0 includes if needed to cut out lock pin

Filed Jul 20, 2016 · Engine · FL

I was told that my car has a recall for the camshaft adjustment solenoid. I took my car into mercedes to be repaired and they told me that the recall was closed and they could not repair my vehicle. I am worried about this issue causing more damage to my engine and I am concerned for my safety while operating my vehicle. I encounter problems with my vehicle while driving.

Filed May 5, 2016 · Acceleration, Engine · 63,000 miles · FL · crash

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.

Filed Aug 19, 2015 · Engine, Steering · 68,000 miles · GA

I have 2010 mercedes benz c300, my car would not start with my key even though the battery checked okay. This is a very common failure among c300 models (2008 to 2013). So meaning cars are vulnerable to this failure around 5 year mark. Manufacturer should issue a recall on these parts, as they have a very bad reliability.