Subaru Impreza: emissions & environmental MOT failures
Emissions & environmental was a recorded failure area in 7.6% of Subaru Impreza MOT tests in this dataset. It is most prominent on 2000, 2004 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 |
|---|---|---|
| 1997 | 1,514 | 7.3% |
| 2000 | 5,515 | 7.8% |
| 2004 | 10,831 | 7.6% |
| 2005 | 13,624 | 7.6% |
| 2009 | 4,724 | 7.6% |
| 2010 | 4,909 | 7.0% |
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.