2023 Mercedes-Benz C-Class: petrol or diesel?
Petrol, diesel and hybrid versions go wrong in different ways, so each has its own figures from the MOTs these cars had during 2023–2025. Pick the one you’re looking at: the fuel is on the logbook and in the car’s MOT history.
Petrol versions had too few MOTs for figures of their own, or weren’t sold.
Known faults on every 2023 Mercedes-Benz C-Class
Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.
- All engines
Fuel pump recall
Some 2022-23 cars were recalled because the fuel pump impeller can deform.
At the viewing: Run the free DVSA recall check on the reg.
- All engines
Poor reliability record
In What Car?'s survey, 43% of these C-Classes had a fault, with problems in the air con, engine, fuel system, gearbox and electrics. Many left the car undriveable.
At the viewing: Check every warning light goes out, and test the air con and all the electrics.
Looking at a Mercedes-Benz C-Class?
Check the actual car: its own MOT history, mileage and what to ask the seller. Free, no sign-up.
Other years
Every year of the Mercedes-Benz C-Class compared
| Year | MOT tests | Most flagged |
|---|---|---|
| 2026 | – | Too new for MOT data |
| 2025 | – | Too new for MOT data |
| 2024 | – | Too new for MOT data |
| 2022 | 4,795 | Tyres 26% |
| 2021 | 11,663 | Tyres 27% |
| 2020 | 30,441 | Tyres 29% |
| 2019 | 73,990 | Tyres 29% |
| 2018 | 84,961 | Tyres 30% |
| 2017 | 118,916 | Tyres 30% |
| 2016 | 110,990 | Tyres 30% |
| 2015 | 103,655 | Tyres 30% |
| 2014 | 77,294 | Tyres 31% |
| 2013 | 72,996 | Brakes 31% |
| 2012 | 81,468 | Brakes 39% |
| 2011 | 60,864 | Brakes 39% |
| 2010 | 42,612 | Brakes 39% |
| 2009 | 41,744 | Brakes 41% |
| 2008 | 44,156 | Suspension 42% |
| 2007 | 39,195 | Suspension 48% |
| 2006 | 31,275 | Suspension 55% |
| 2005 | 27,259 | Suspension 57% |
| 2004 | 20,438 | Suspension 57% |
| 2003 | 14,253 | Suspension 53% |
| 2002 | 7,932 | Suspension 48% |
| 2001 | 4,263 | Suspension 47% |
| 2000 | 1,993 | Suspension 41% |
| 1999 | 2,498 | Suspension 36% |
| 1998 | 2,759 | Suspension 38% |
| 1997 | 2,187 | Suspension 44% |
| 1996 | 1,272 | Suspension 37% |
| 1995 | 970 | Brakes 33% |
| 1994 | 779 | Suspension 37% |
| 1993 | – | Too few tests |