# Smart ForFour MOT reliability: pass rate and common failures | RegFlags

The Smart ForFour passes its MOT first time 56% of the time, from 976 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 56%
- MOT tests analysed: 976 (DVSA anonymised MOT data, 2025)
- Most common failure area: Lights & electrics
- Licensed in Great Britain: 23,403 (2026 Q2)

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2016 | Petrol | 1 (very few mots) | 100% |
| 2008 | Petrol | 7 (very few mots) | 43% |
| 2007 | Petrol | 49 (few mots) | 61% |
| 2006 | Petrol | 439 | 55% |
| 2006 | Diesel | 21 (few mots) | 62% |
| 2005 | Petrol | 322 | 60% |
| 2005 | Diesel | 27 (few mots) | 70% |
| 2004 | Petrol | 89 (few mots) | 47% |
| 2004 | Diesel | 21 (few mots) | 33% |

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