Seat Mii MOT data by year
The Seat Mii appears in 98,494 MOT tests in this dataset across model years 2012–2021. Its most common failure areas are lighting & signalling, brakes and visibility, and its overall pass rate is 86.4%.
98,494
MOT tests analysed
86.4%
Pass rate
13.6%
Fail rate
2012–2021
Years covered
By model year
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 2014 | 17,851 | 86.4% | 13.7% | Lighting & signalling |
| 2015 | 15,461 | 86.4% | 13.6% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 6.5% | 6,379 |
| 2 | Brakes | 4.6% | 4,542 |
| 3 | Visibility | 3.7% | 3,635 |
| 4 | Tyres | 3.4% | 3,363 |
| 5 | Suspension | 2.3% | 2,290 |
| 6 | Body, structure & corrosion | 2.0% | 1,951 |
| 7 | Seat belts & restraints | 1.7% | 1,634 |
| 8 | Emissions & environmental | 1.6% | 1,568 |
Methodology & source. Based on 98,494 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.