2016 Mercedes-Benz C300 fuel/propulsion system problems
57 owner complaints filed with NHTSA name the fuel/propulsion system on the 2016 Mercedes-Benz C300 — 20% of all complaints for this model year.
What owners report
“I’ve been driving my car since September when it was purchased I just got it from dealership 4/9/26 spent over $1100 and have been working like regular full time schedule, I wake up today 4/27/26 trying to work and car is stalling. Not sure what’s going on with these mechanics and technicians. I…”
filed Apr 27, 2026
“fuel lines/ clamps defective causing a fuel leak. vehicle could catch on fire and fumes are extremely strong inside the cabin. issue confirmed by Mercedes dealer, mentioned there is an extended warranty up to 120,000 miles. rejected mine because i was at 120,300 miles. had to pay out of pocket. no…”
filed Jan 29, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Fuel/propulsion System problems in other C300 years
| Year | Reports | Share |
|---|---|---|
| 2015 C300 | 66 | 17% |
| 2014 C300 | 1 | 1% |
| 2013 C300 | 2 | 1% |
| 2012 C300 | 8 | 3% |
| 2011 C300 | 38 | 8% |
| 2010 C300 | 26 | 6% |
| 2009 C300 | 4 | 1% |
| 2008 C300 | 2 | 0% |
Other reported problem areas on the 2016 Mercedes-Benz C300
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.