# Mercedes-Benz S500 MOT reliability: pass rate and common failures | RegFlags

The Mercedes-Benz S500 passes its MOT first time 87% of the time, from 335 MOT tests. See pass rates by year, common failures and typical mileage.

- First-time MOT pass rate: 87%
- MOT tests analysed: 335 (DVSA anonymised MOT data, 2025)
- Most common failure area: Wheels & tyres

## By year of first use and fuel

| Year | Fuel | MOT tests | First-time pass rate |
| --- | --- | --- | --- |
| 2025 | Hybrid | 7 (very few mots) | 100% |
| 2024 | Hybrid | 8 (very few mots) | 88% |
| 2023 | Hybrid | 44 (few mots) | 96% |
| 2022 | Hybrid | 159 | 87% |
| 2022 | Petrol | 1 (very few mots) | 0% |
| 2021 | Hybrid | 95 (few mots) | 85% |
| 2021 | Petrol | 1 (very few mots) | 100% |
| 2019 | Petrol | 1 (very few mots) | 100% |
| 2018 | Petrol | 3 (very few mots) | 67% |
| 2016 | Petrol | 2 (very few mots) | 50% |
| 2014 | Petrol | 2 (very few mots) | 100% |
| 2012 | Petrol | 1 (very few mots) | 100% |
| 2010 | Petrol | 1 (very few mots) | 100% |
| 2009 | Petrol | 1 (very few mots) | 0% |
| 2007 | Petrol | 2 (very few mots) | 100% |
| 2005 | Petrol | 1 (very few mots) | 100% |
| 2004 | Petrol | 1 (very few mots) | 100% |
| 1999 | Petrol | 1 (very few mots) | 100% |
| 1996 | Petrol | 1 (very few mots) | 100% |
| 1995 | Petrol | 2 (very few mots) | 100% |
| 1991 | Petrol | 1 (very few mots) | 100% |

---

Canonical page: https://regflags.co.uk/reliability/mercedes-benz/s500
RegFlags by Steady Circuit Ltd.