# Ford Sierra MOT reliability: pass rate and common failures | RegFlags

The Ford Sierra passes its MOT first time 88% of the time, from 2,592 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 88%
- MOT tests analysed: 2,592 (DVSA anonymised MOT data, 2025)
- Most common failure area: Lights & electrics
- Licensed in Great Britain: 2,234 (2026 Q2)

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2009 | Petrol | 1 (very few mots) | 100% |
| 2006 | Petrol | 1 (very few mots) | 100% |
| 2003 | Petrol | 1 (very few mots) | 100% |
| 2001 | Petrol | 1 (very few mots) | 100% |
| 1999 | Petrol | 1 (very few mots) | 100% |
| 1998 | Petrol | 1 (very few mots) | 100% |
| 1997 | Petrol | 1 (very few mots) | 100% |
| 1996 | Petrol | 2 (very few mots) | 100% |
| 1995 | Petrol | 1 (very few mots) | 100% |
| 1993 | Petrol | 96 (few mots) | 81% |
| 1993 | Diesel | 1 (very few mots) | 100% |
| 1993 | LPG | 1 (very few mots) | 100% |
| 1992 | Petrol | 317 | 84% |
| 1992 | Diesel | 11 (very few mots) | 73% |
| 1991 | Petrol | 334 | 88% |
| 1991 | Diesel | 9 (very few mots) | 89% |
| 1990 | Petrol | 404 | 87% |
| 1990 | Diesel | 5 (very few mots) | 80% |
| 1989 | Petrol | 405 | 89% |
| 1989 | Diesel | 1 (very few mots) | 0% |
| 1988 | Petrol | 261 | 92% |
| 1988 | Diesel | 8 (very few mots) | 50% |
| 1987 | Petrol | 355 | 92% |
| 1987 | Diesel | 3 (very few mots) | 67% |
| 1986 | Petrol | 220 | 93% |
| 1985 | Petrol | 32 (few mots) | 94% |
| 1985 | Diesel | 1 (very few mots) | 100% |
| 1984 | Petrol | 72 (few mots) | 88% |
| 1984 | Diesel | 1 (very few mots) | 100% |
| 1983 | Petrol | 43 (few mots) | 77% |
| 1982 | Petrol | 2 (very few mots) | 100% |

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