Engine complaints and recalls from NHTSA
Summary
The 2018 Mercedes-Benz C-Class has 34 NHTSA engine complaints and 0 engine-related recalls.
34
Complaints
0
Recalls
0
Injuries Reported
Data source: National Highway Traffic Safety Administration (NHTSA) · Last updated April 9, 2026
| Date ↓ | Component | Summary |
|---|---|---|
| Jan 7, 2026 | ENGINE | Check engine light comes on, Error Code P052E, after a lot of research, this is a known defective pa... |
| May 29, 2025 | ENGINE | My vehicle only had 31,000 miles and I experienced engine failure. I bought a new engine for 16, 500... |
| Jan 29, 2025 | ENGINE,FUEL/PROPULSION SYSTEM | The engine light is on with only 35000 miles. Upon using an OBD2 scanner, error code P052e positive ... |
| Aug 2, 2024 | ENGINE | I need the Crankcase ventilation valve replaced and have heard many complaints about this repair. |
| Jun 23, 2024 | ENGINE | P052E positive crankcase ventilation regularly valve |
| May 17, 2024 | ENGINE | Car needs an engine rebuild at 90K miles due to a cracked piston #1, a problem with a car that recei... |
| Apr 23, 2024 | ENGINE | Very common problem on all Mercedes - code P052E - second time on this car. Engine light, 2nd time ... |
| Mar 23, 2024 | ENGINE | The Valve for crankcase ventilation has a malfunction. The actuator is blocked. |
| Mar 16, 2024 | ENGINE | Error code P052E Positive crankcase ventilation regulator valve performance |
| Feb 20, 2024 | ENGINE | I have 33,000 miles on the vehicle and the check engine light came on. The code P052e came up Posit... |
| Feb 1, 2024 | ENGINE | CODE'S P052W-71 & P060A-00 THESE'S CODES HAS BEEN AN ISSUE WITH MERCEDES BENZ FOR QUITE SOME TIME N... |
| Jan 28, 2024 | ENGINE | Check engine light code is positive crankcase ventilation regulator valve |
| Jan 27, 2024 | ENGINE | An Engine Code P052E (positive crankcase ventilation regulatory valve) appeared and the vehicle only... |
| Oct 20, 2023 | ENGINE | My car was diagnosed with positive crankcase ventilation regulator valve performance failure. This s... |
| Oct 17, 2023 | ENGINE | Check engine light appeared.I took it to Mercedes and they said the crankshaft was faulty. I had to ... |
| Oct 4, 2023 | ENGINE | Engine code: P052e - the widest spread engine issue on Mercedes which fails emissions testing. Crank... |
| Sep 14, 2023 | ENGINE | Engine light came on, checked with diagnostic machine shows a crank shaft issue. I have maintained t... |
| Aug 21, 2023 | ENGINE | Positive crank case valve failure. Check engine light on. Mechanic started this was extremely comm... |
| Jul 26, 2023 | ENGINE | The check engine light has been coming on to indicate replacement of vent valve assembly According t... |
| Jul 26, 2023 | ENGINE,FUEL/PROPULSION SYSTEM | Check engine light came on. Had a diagnostic check and was told that the crankcase ventilation senso... |