Does the Rover Mini fail the MOT on noise, emissions and leaks more than it should?
The Rover Mini records 17.29 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 8.34 expected for a car of the same age mix: more than expected for its class and age (+8.95, 95% interval +8.64 to +9.25). It ranks 10 of 678 models on noise, emissions and leaks (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on noise, emissions and leaks · check a Rover Mini by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Rover Mini is “Emissions levels exceed default limits”, recorded 6,468 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Emissions levels exceed default limits | 6,468 | 8.91 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 1,947 | 2.68 |
| Emissions levels exceed the manufacturer's specified limits | 1,756 | 2.42 |
| Emissions test unable to be completed | 1,196 | 1.65 |
| Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users | 337 | 0.46 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 72,564 (initial tests) · Method: failure items (major and minor) grouped by DVSA's defect tree; wordings with 30+ items · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
If a Rover Mini gets a noise, emissions and leaks advisory, how often does it fail next time?
13.3% of Rover Mini MOTs with a noise, emissions and leaks advisory were followed by a fail in the same group at the next MOT, typically 12.2 months and 469 miles later (5,963 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 5,963 (advisories followed) · Method: the same vehicles followed to their next ordinary MOT · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
Other pages for this model
Rover Mini 1998 · Rover Mini 1999 · Rover Mini 2000 · Rover Mini 2001 · Rover Mini by postcode area · Rover Mini body, chassis and structure failures · Rover Mini brakes failures · Rover Mini vehicle identification failures · Rover Mini lamps, reflectors and electrics failures · Rover Mini road wheels failures · Rover Mini seat belts and airbags failures · Rover Mini steering failures · Rover Mini suspension failures · Rover Mini tyres failures · Rover Mini visibility failures