2017 Mercedes-Benz C300 engine problems
79 complaints about engine have been filed for the 2017 Mercedes-Benz C300, which is 28% of all its NHTSA complaints. It is the most reported problem area for this model year.
At a glance
- Complaints
- 79 28% of this year's complaints
- Typical mileage
- 42,000 miles 10 complaints with mileage
- Crashes and fires
- 0 and 1
- Injuries and deaths
- 0 and 0
Source: NHTSA owner complaints
When engine problems show up
View the numbers
| Mileage | Complaints |
|---|---|
| 0k to 20k miles | 1 |
| 20k to 40k miles | 4 |
| 40k to 60k miles | 3 |
| 60k to 80k miles | 1 |
| 80k to 100k miles | 1 |
| 100k to 120k miles | 0 |
| 120k to 140k miles | 0 |
| 140k to 160k miles | 0 |
| 160k to 180k miles | 0 |
| 180k to 200k miles | 0 |
| 200k+ miles | 0 |
What the data shows
Of the 10 engine complaints that report mileage, the median is about 42,000 miles, and 80% were reported before 60,000 miles.
These complaints mention 1 fire.
What owners wrote
The contact owns a 2017 Mercedes-Benz C300. While driving at approximately 15 mph, the contact observed smoke emanating from under the hood. The vehicle was driven to her work location and parked. Upon exiting the vehicle and opening the hood, she observed orange flames coming from the engine compartment. A parking attendant extinguished the fire, and a police and/or fire report was filed. The vehicle was towed to a dealer and diagnosed with a fuel line leak that caused the engine harness to come apart.
The contact owns a 2017 Mercedes-Benz C300. The contact stated that while at a stop light the vehicle stalled. There were no warning lights illuminated. The vehicle was taken to the local dealer where it was diagnosed and determined that the battery cable needed to be replaced. The vehicle was repaired but the failure recurred. The vehicle was taken back to the local dealer where it was diagnosed that an update to the powertrain software was needed, and the transmission pump needed to be replaced.
Other problems reported for the 2017 Mercedes-Benz C300
- Fuel system 33 complaints
- Electrical system 31 complaints
- Body & structure 24 complaints
- Seat belts 22 complaints
- Air bags 16 complaints