Does the Rover 45 fail the MOT on noise, emissions and leaks more than it should?
The Rover 45 records 8.01 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 9.59 expected for a car of the same age mix: less than expected for its class and age (−1.58, 95% interval −1.95 to −1.20). It ranks 500 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 45 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Rover 45 is “Engine MIL illuminated indicating a malfunction”, recorded 505 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Engine MIL illuminated indicating a malfunction | 505 | 1.93 |
| Emissions test unable to be completed | 443 | 1.69 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 407 | 1.55 |
| Emissions levels exceed default limits | 201 | 0.77 |
| An induction or exhaust leak that could affect emissions levels | 199 | 0.76 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 26,183 (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 45 gets a noise, emissions and leaks advisory, how often does it fail next time?
8.1% of Rover 45 MOTs with a noise, emissions and leaks advisory were followed by a fail in the same group at the next MOT, typically 12 months and 3,067 miles later (1,675 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,675 (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 45 2000 · Rover 45 2001 · Rover 45 2002 · Rover 45 2003 · Rover 45 2004 · Rover 45 2005 · Rover 45 by postcode area · Rover 45 body, chassis and structure failures · Rover 45 brakes failures · Rover 45 vehicle identification failures · Rover 45 lamps, reflectors and electrics failures · Rover 45 road wheels failures · Rover 45 seat belts and airbags failures · Rover 45 steering failures · Rover 45 suspension failures · Rover 45 tyres failures · Rover 45 visibility failures