There are 2 stored owner reports matching the engine leading-label group for the 2011 Mercedes-Benz C-Class in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 2 of 2 matching reports.
Open the full vehicle complaint log (all categories)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.
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
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Aug 31, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.