Mercedes MOT failure rates by model
Mercedes cars fail 24.7% of MOT tests. Here is every Mercedes model ranked by failure rate, and the item each loses most tests to.
What is the MOT failure rate for Mercedes cars?
Across 318,573 MOT tests in the DVSA record, 24.7% of Mercedes cars fail. That is 1.0 points below the 25.7% national average across all cars. The Mercedes models below are ranked worst to best by failure rate, each with the failure area it loses most tests to.
| Model | Failure rate | Tests | Top failure area |
|---|---|---|---|
| Mercedes 307 | 39.7% | 1,423 | Lamps & electrical |
| Mercedes 308 | 37.8% | 1,115 | Brakes |
| Mercedes 208d | 37.7% | 3,934 | Lamps & electrical |
| Mercedes 207d | 34.7% | 1,195 | Lamps & electrical |
| Mercedes 709d | 34.3% | 1,245 | Brakes |
| Mercedes Ml270 | 34.2% | 1,176 | , |
| Mercedes 609d | 33.0% | 1,036 | Brakes |
| Mercedes A140 | 31.3% | 2,753 | Lamps & electrical |
| Mercedes E230 | 31.0% | 1,337 | Lamps & electrical |
| Mercedes Sprinter | 30.2% | 10,509 | Lamps & electrical |
| Mercedes E270 | 29.8% | 2,034 | , |
| Mercedes C200 | 29.4% | 6,689 | , |
| Mercedes Smart | 29.3% | 1,742 | Lamps & electrical |
| Mercedes Vito | 29.2% | 4,805 | Lamps & electrical |
| Mercedes C320 | 28.9% | 1,445 | , |
| Mercedes C220 | 28.8% | 18,680 | Other |
| Mercedes E320 | 28.4% | 6,357 | , |
| Mercedes Clk220 | 28.4% | 1,731 | , |
| Mercedes S320 | 27.9% | 2,649 | , |
| Mercedes C270 | 27.8% | 1,015 | , |
| Mercedes E280 | 27.7% | 3,009 | , |
| Mercedes E220 | 27.6% | 4,069 | , |
| Mercedes Slc | 27.5% | 1,283 | Lamps & electrical |
| Mercedes A170 | 26.6% | 1,896 | Lamps & electrical |
| Mercedes Cls | 26.3% | 3,246 | Suspension |
| Mercedes A-Class | 26.1% | 3,104 | Lamps & electrical |
| Mercedes C-Class | 26.1% | 2,109 | Suspension |
| Mercedes Camper | 25.6% | 10,292 | Lamps & electrical |
| Mercedes Not | 25.6% | 1,589 | , |
| Mercedes S-Class | 25.1% | 1,067 | Lamps & electrical |
| Mercedes Motorcaravan | 25.0% | 1,798 | Lamps & electrical |
| Mercedes Campervan | 25.0% | 1,216 | Brakes |
| Mercedes C250 | 24.9% | 3,494 | Suspension |
| Mercedes Coupe | 24.9% | 1,492 | Lamps & electrical |
| Mercedes C180 | 24.8% | 5,726 | Exhaust & emissions |
| Mercedes 320 | 24.8% | 1,743 | Suspension |
| Mercedes 814d | 24.8% | 1,332 | Brakes |
| Mercedes Motor | 24.6% | 13,180 | Lamps & electrical |
| Mercedes Clk | 24.0% | 3,355 | Lamps & electrical |
| Mercedes Hymer | 23.9% | 9,594 | Lamps & electrical |
| Mercedes B180 | 23.9% | 2,908 | Suspension |
| Mercedes A160 | 23.7% | 7,478 | Lamps & electrical |
| Mercedes. | 23.5% | 1,562 | Lamps & electrical |
| Mercedes Mercedes | 23.5% | 1,298 | Lamps & electrical |
| Mercedes Motorhome | 23.4% | 15,312 | Lamps & electrical |
| Mercedes 814 | 23.4% | 3,567 | Lamps & electrical |
| Mercedes A150 | 22.7% | 3,106 | Lamps & electrical |
| Mercedes Hearse | 22.6% | 1,469 | Suspension |
| Mercedes Ml350 | 22.5% | 1,351 | Lamps & electrical |
| Mercedes E-Class | 22.3% | 1,855 | Suspension |
| Mercedes 614d | 22.0% | 1,617 | Brakes |
| Mercedes Ml | 21.9% | 15,441 | Lamps & electrical |
| Mercedes G-Class | 21.7% | 3,078 | Lamps & electrical |
| Mercedes Ml300 | 21.7% | 1,011 | Lamps & electrical |
| Mercedes A180 | 21.5% | 2,599 | Other |
| Mercedes Unknown | 20.6% | 13,116 | Lamps & electrical |
| Mercedes Minibus | 20.6% | 1,204 | Brakes |
| Mercedes Slk | 18.7% | 5,960 | Lamps & electrical |
| Mercedes 316 | 18.0% | 1,035 | Lamps & electrical |
| Mercedes Atego | 17.4% | 6,053 | Lamps & electrical |
| Mercedes Rapido | 16.5% | 1,872 | Lamps & electrical |
| Mercedes Limousine | 16.1% | 1,276 | Suspension |
| Mercedes Sl | 14.5% | 1,091 | Suspension |
| Mercedes Ambulance | 14.4% | 3,067 | Brakes |
| Mercedes Axor | 13.8% | 2,101 | Lamps & electrical |
| Mercedes Actros | 11.7% | 1,239 | Other |
Which Mercedes fails its MOT most, and which least?
The Mercedes 307 has the highest failure rate at 39.7%, and the Mercedes Actros the lowest at 11.7%. A higher rate reflects how old and how hard a model tends to be used as much as how it was built, so the oldest models in the range usually sit near the top.
Compare another make
Failure rates for other makes with a large MOT sample.
| Make |
|---|
| Morris MOT failure rates |
| Lotus MOT failure rates |
| Smart MOT failure rates |
| Ssangyong MOT failure rates |
| Aston Martin MOT failure rates |
| Abarth MOT failure rates |
Sources: DVSA MOT History API: MOT test results and defect data ยท DVSA MOT testing data for Great Britain