Mercedes-Benz B-Class MOT data by year
The Mercedes-Benz B-Class appears in 429,942 MOT tests in this dataset across model years 1991–2025. Its most common failure areas are lighting & signalling, suspension and tyres, and its overall pass rate is 81.8%.
429,942
MOT tests analysed
81.8%
Pass rate
18.2%
Fail rate
1991–2025
Years covered
By model year
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2005 | 3,546 | 73.0% | 27.0% | Lighting & signalling |
| 2006 | 16,266 | 72.6% | 27.4% | Lighting & signalling |
| 2007 | 20,165 | 73.0% | 27.0% | Lighting & signalling |
| 2008 | 25,457 | 72.7% | 27.3% | Suspension |
| 2009 | 30,409 | 74.3% | 25.7% | Lighting & signalling |
| 2010 | 31,153 | 75.1% | 24.9% | Lighting & signalling |
| 2011 | 23,983 | 75.4% | 24.6% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 8.2% | 35,439 |
| 2 | Suspension | 6.7% | 28,910 |
| 3 | Tyres | 5.6% | 24,086 |
| 4 | Brakes | 5.0% | 21,412 |
| 5 | Visibility | 3.2% | 13,857 |
| 6 | Body, structure & corrosion | 2.5% | 10,592 |
| 7 | Emissions & environmental | 2.4% | 10,246 |
| 8 | Seat belts & restraints | 1.2% | 4,974 |
Methodology & source. Based on 429,942 MOT tests. Dataset: DVSA MOT testing data (2021,2022,2023,2024,2025). Data last updated 2026-07-01. Figures reflect MOT-testable defects only — read the methodology for how these are calculated and what they don't measure.