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

The Mercedes-Benz Rclass passes its MOT first time 72% of the time, from 1,725 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 72%
- MOT tests analysed: 1,725 (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 |
| --- | --- | --- | --- |
| 2013 | Diesel | 144 | 83% |
| 2013 | Petrol | 3 (very few mots) | 0% |
| 2012 | Diesel | 252 | 71% |
| 2012 | Petrol | 3 (very few mots) | 67% |
| 2011 | Diesel | 320 | 74% |
| 2011 | Petrol | 1 (very few mots) | 100% |
| 2010 | Diesel | 184 | 73% |
| 2010 | Petrol | 4 (very few mots) | 75% |
| 2009 | Diesel | 125 | 66% |
| 2009 | Petrol | 5 (very few mots) | 40% |
| 2008 | Diesel | 212 | 71% |
| 2008 | Petrol | 9 (very few mots) | 78% |
| 2007 | Diesel | 202 | 64% |
| 2007 | Petrol | 43 (few mots) | 84% |
| 2007 | LPG | 1 (very few mots) | 100% |
| 2006 | Diesel | 139 | 73% |
| 2006 | Petrol | 75 (few mots) | 77% |
| 2006 | LPG | 2 (very few mots) | 50% |
| 2005 | Diesel | 1 (very few mots) | 100% |

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