2020 Mercedes-Benz AMG C43 Engine Problems
- Complaints
- 1about this part
- Share
- 8%of 12 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine of the 2020 Mercedes-Benz AMG C43, 8% of the 12 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“CEL with multiple cylinder misfires. Oil leak on top side of engine bank 2 in valley of injectors. Multiple codes for turbo charger faults and also clogged catalytic converters. Dealer confirmed and manufacturer denied federal emissions warranty on vehicle. Due to a modification that plays no role in the power train.”
NHTSA complaint #11497171, filed 2022-12Related service bulletins
- 11035238Jul 24, 2026Mercedes-Benz AG (“MBAG”), the manufacturer of Mercedes-Benz, has determined that on certain MY 2019-2021 C-Class, G-Class, GLC, GT, S-Class (205, 463, 253, 190 & 222 platforms)…
- 11034064Jun 19, 2026Dear Mercedes-Benz USA Dealers, The part numbers listed in the chart below should no longer be installed, and any existing stock must be returned to your facing PDC. The deadline…
- 11012807Jan 9, 2025Complaint Customer states that the CEL is lit in the instrument cluster Cause Debris in the coolant system Remedy Please refer to the specific repair instructions for the vehicle…
- 10176663May 19, 2020Check engine indicator light active and fault code P261029/P02FF85/P02FF02 stored in engine control unit
Engine: other model years
Other parts of the 2020 Mercedes-Benz AMG C43
4 complaintsBack-over prevention (rear camera)
2 complaintsOther or unknown
2 complaintsElectrical system
1 complaintsFuel system
1 complaintsSteering
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsWheels
1 complaints
← All problems reported for the 2020 Mercedes-Benz AMG C43
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology