2023 Mercedes-Benz C300 Engine Problems
- Complaints
- 2about this part
- Share
- 9%of 22 total for the year
- Median mileage
- 3,900miles
- Trend
- Too newThis model year is less than 4 years old, so a trend is not meaningful yet.
NHTSA recorded 2 complaints about the engine of the 2023 Mercedes-Benz C300, 9% of the 22 complaints for this model year. Where a mileage was given, the median is 3,900 miles.
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.
“The contact owns a 2023 Mercedes-Benz C300. The contact stated while reversing, the check engine warning light illuminated and the vehicle lost motive power, stalled and shutoff. The contact was able to restart the vehicle, but had the vehicle towed to the dealer. The dealer stated that no cause for the failure was found but updated the software. The failure reoccurred. The vehicle was taken back to the dealer and the contact was informed that the water pump needed to be replaced. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 3,900.”
NHTSA complaint #11540331, filed 2023-08, 3,900 miles“The above multiple problems/parts at issue. To include Other/I am not sure. Started at or approximately February 2023. The (Automatic Folding Side View Folding Mirrors before resolution) Malfunctioned 3 separate times before being fixed. During that time the (Cooling System Malfunction Reduced Drive Performance Service Required), displayed 2 separate Unknown Dates on the Dashboard Screen. The MB Dealership Service Diagnostic Check made was not Able to Detect the Trouble and was Never Fixed). …”
NHTSA complaint #11555944, filed 2023-11Related service bulletins
- 11036345Aug 15, 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…
- 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…
- 11030302Mar 27, 2026Complaint -Check engine light illuminated. -Engine runs rough. -Poor shifting or jerking when accelerating. -Fault codes stored related to mixture formation, injector quantity…
- 11029916Mar 9, 2026Complaint Engine vibrations perceived at low rpm. Fault codes for the camshaft position of the intake camshaft (P001100, P001104, P001200) or exhaust camshaft (P001400, P001404…
- 11029134Feb 20, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has decided that on certain model year 2023 C-Class, G-Class and SL vehicles, the engine control unit software may…
- 11028807Feb 14, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control unit software does not correspond to current…
- 11028827Feb 13, 2026Complaint Engine vibrations perceived at low rpm. Fault codes for the camshaft position of the intake camshaft (P001100, P001104, P001200) or exhaust camshaft (P001400, P001404…
- 11028648Feb 7, 2026Mercedes-Benz AG, the manufacturer of Mercedes-Benz vehicles, has determined that on certain subject vehicles, the engine control software might not meet current specifications…
- 11028267Feb 2, 2026Complaint -Check engine light illuminated. -Engine runs rough. -Poor shifting or jerking when accelerating. -Fault codes stored related to mixture formation, injector quantity…
- 11028003Jan 23, 2026Dear Mercedes-Benz Owner: In our continuing efforts to ensure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA…
Engine: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2024 | 2 | 18% |
| 2023 | 2 | 9% |
| 2022 | 2 | 8% |
| 2021 | 8 | 57% |
| 2020 | 8 | 24% |
| 2019 | 17 | 25% |
| 2018 | 34 | 34% |
| 2017 | 77 | 36% |
| 2016 | 94 | 32% |
| 2015 | 127 | 33% |
| 2014 | 2 | 2% |
| 2013 | 8 | 3% |
| 2012 | 5 | 2% |
| 2011 | 10 | 2% |
| 2010 | 13 | 3% |
| 2009 | 16 | 3% |
| 2008 | 31 | 5% |
Other parts of the 2023 Mercedes-Benz C300
10 complaintsBrakes
5 complaintsElectrical system
5 complaintsOther or unknown
4 complaintsTires
2 complaintsFuel system
1 complaintsBody and structure
1 complaintsTransmission and drivetrain
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2023 Mercedes-Benz C300
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