# Mercedes-Benz 312 MOT reliability: pass rate and common failures | RegFlags

The Mercedes-Benz 312 passes its MOT first time 61% of the time, from 151 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 61%
- MOT tests analysed: 151 (DVSA anonymised MOT data, 2025)
- Most common failure area: Lights & electrics

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2000 | Diesel | 5 (very few mots) | 20% |
| 1999 | Diesel | 34 (few mots) | 62% |
| 1998 | Diesel | 29 (few mots) | 66% |
| 1997 | Diesel | 30 (few mots) | 67% |
| 1996 | Diesel | 44 (few mots) | 59% |
| 1995 | Diesel | 9 (very few mots) | 56% |

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