Ford Sierra MOT data by year
The Ford Sierra appears in 13,084 MOT tests in this dataset across model years 1981–2021. Its most common failure areas are lighting & signalling, suspension and emissions & environmental, and its overall pass rate is 88.3%.
13,084
MOT tests analysed
88.3%
Pass rate
11.7%
Fail rate
1981–2021
Years covered
By model year
| Year | Tests | Pass rate | Fail rate | Most common failure |
|---|---|---|---|---|
| 1988 | 1,107 | 87.7% | 12.3% | Lighting & signalling |
Most common failures (all years)
| # | Category | % of tests affected | Tests |
|---|---|---|---|
| 1 | Lighting & signalling | 6.0% | 789 |
| 2 | Suspension | 4.3% | 561 |
| 3 | Emissions & environmental | 3.7% | 487 |
| 4 | Brakes | 3.6% | 470 |
| 5 | Body, structure & corrosion | 3.5% | 451 |
| 6 | Visibility | 2.3% | 306 |
| 7 | Steering | 1.5% | 197 |
| 8 | Seat belts & restraints | 1.1% | 151 |
Methodology & source. Based on 13,084 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.