# Auto Trail Mercedes-Benz MOT reliability: pass rate and common failures | RegFlags

The Auto Trail Mercedes-Benz passed its MOT first time 83% of the time, but from only 66 MOT tests, so treat it as a rough guide. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 83%
- MOT tests analysed: 66 (DVSA anonymised MOT data, 2025)
- Most common failure area: Lights & electrics

These figures come from 66 MOT tests. That's a fairly small number of cars, so they may not be typical of these cars as a whole.

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2007 | Diesel | 1 (very few mots) | 100% |
| 2006 | Diesel | 10 (very few mots) | 80% |
| 2005 | Diesel | 6 (very few mots) | 100% |
| 2004 | Diesel | 9 (very few mots) | 78% |
| 2003 | Diesel | 16 (very few mots) | 88% |
| 2002 | Diesel | 16 (very few mots) | 88% |
| 2001 | Diesel | 8 (very few mots) | 63% |

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