Mercedes MOT pass rate
15,373 MOT tests in 2024. Overall pass rate: 76.9%
Mercedes has a 76.9% MOT pass rate based on 15,373 real DVSA test records from 2024. That is 1.4 percentage points below the UK average of 78.3%. It ranks 59 out of 85 makes.
The strongest model is the Ml 250 at 85.7%, while the Motor Home is lowest at 72.7%.
The single most common reason a Mercedes fails its MOT is the aim of a headlamp is not within limits laid down in the requirements, which accounted for 430 failures.
Most common Mercedes MOT failures
| Reason | Count |
|---|---|
| the aim of a headlamp is not within limits laid down in the requirements | 430 |
| a lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 361 |
| a suspension pin, bush or joint excessively worn | 359 |
| brake pipe damaged or excessively corroded | 281 |
| steering rack gaiter or ball joint dust cover missing or no longer prevents the ingress of dirt etc | 248 |
| parking brake efficiency below minimum requirement | 237 |
| windscreen washers not working or not providing sufficient fluid to clear the windscreen | 206 |
| a direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 201 |
| a spring or spring component fractured or seriously weakened | 198 |
| wiper blade missing or obviously not clearing the windscreen | 184 |
How Mercedes compares
Mercedes pass rate76.9%
UK average78.3%
Black line = UK average (78.3%). Based on 57.7 million MOT tests.
All Mercedes models
| Model | Tests | Pass rate |
|---|---|---|
| Unclassified | 4,629 | 77.5% |
| Ml 250 | 1,152 | 85.7% |
| Motorhome | 968 | 75.2% |
| Hymer | 539 | 75.7% |
| Camper | 436 | 78.4% |
| Motor Home | 421 | 72.7% |
| A160 | 373 | 76.1% |
| Motor Caravan | 343 | 76.1% |