2017 Mercedes-Benz C 300 power train problems
12 owner complaints filed with NHTSA name the power train on the 2017 Mercedes-Benz C 300 — 6% of all complaints for this model year.
What owners report
“Car check engine light came on with only 62,000 miles. Diagnosed as code P052E, the issue is the positive crankcase ventilation valve being faulty. Regular oil changes and maintenance was done. I see multiple complaints with this issue, why is this not recalled? It is very expensive to have fixed.”
filed Jul 10, 2024
“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…”
filed Mar 29, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Single throttle lift-off clunking noise from the side shaft when moving off (audible at the outboard end). The noise is heard once in each instance when changing direction of travel. Note: Sound file in attachment Cause…
LI35.30-P-058566 · Service Bulletin/Repair Instructions · issued Jul 14, 2026
Power Train problems in other C 300 years
| Year | Reports | Share |
|---|---|---|
| 2023 C 300 | 1 | 5% |
| 2020 C 300 | 3 | 9% |
| 2019 C 300 | 3 | 5% |
| 2018 C 300 | 2 | 2% |
Other reported problem areas on the 2017 Mercedes-Benz C 300
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.