Toyota Previa: emissions & environmental MOT failures
Emissions & environmental was a recorded failure area in 9.0% of Toyota Previa MOT tests in this dataset. It is most prominent on 1997, 2011 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 | 850 | 10.2% |
| 1998 | 755 | 9.8% |
| 2004 | 5,398 | 9.0% |
| 2011 | 265 | 9.8% |
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.