# Alfa Romeo 166 MOT reliability: pass rate and common failures | RegFlags

The Alfa Romeo 166 passes its MOT first time 53% of the time, from 173 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 53%
- MOT tests analysed: 173 (DVSA anonymised MOT data, 2025)
- Most common failure area: Lights & electrics
- Licensed in Great Britain: 114 (2026 Q2)

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2008 | Petrol | 3 (very few mots) | 67% |
| 2007 | Petrol | 2 (very few mots) | 50% |
| 2006 | Petrol | 1 (very few mots) | 100% |
| 2005 | Petrol | 35 (few mots) | 51% |
| 2004 | Petrol | 29 (few mots) | 55% |
| 2003 | Petrol | 13 (very few mots) | 54% |
| 2002 | Petrol | 19 (very few mots) | 58% |
| 2001 | Petrol | 26 (few mots) | 58% |
| 2000 | Petrol | 25 (few mots) | 40% |
| 2000 | Diesel | 1 (very few mots) | 100% |
| 2000 | LPG | 1 (very few mots) | 0% |
| 1999 | Petrol | 16 (very few mots) | 63% |
| 1998 | Petrol | 2 (very few mots) | 0% |

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