Rover Mini: emissions & environmental MOT failures
Emissions & environmental was a recorded failure area in 9.6% of Rover Mini MOT tests in this dataset. It is most prominent on 1987, 1988 cars.
More common on older diesels (DPF/EGR) — can be expensive; check for warning lights and smoke. Typical repair cost: £100–£600 (rough UK ballpark, not a quote).
Emissions & environmental failures by year
| Model year | Tests | Fail rate |
|---|---|---|
| 1987 | 628 | 11.6% |
| 1988 | 819 | 12.0% |
| 1990 | 6,011 | 9.9% |
| 1991 | 5,769 | 9.5% |
| 1992 | 5,002 | 11.0% |
| 1994 | 5,399 | 11.0% |
| 1997 | 4,046 | 9.1% |
| 1998 | 5,253 | 8.6% |
| 1999 | 4,578 | 8.0% |
Methodology & source. 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.