MOT Risk Index.co.uk

Does the Morris Minor fail the MOT on noise, emissions and leaks more than it should?

The Morris Minor records 0.73 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 7.36 expected for a car of the same age mix: less than expected for its class and age (−6.63, 95% interval −7.05 to −6.21). It ranks 675 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 Morris Minor by registration

What exactly fails on noise, emissions and leaks?

The most frequent DVSA defect wording in this group on the Morris Minor is “Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users”, recorded 75 times in 2019–2024.

Morris Minor: most frequent noise, emissions and leaks defect wordings, 2019–2024 (30+ items each)
DVSA defect wordingItemsPer 100 tests
Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users750.47

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 16,127 (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 Morris Minor gets a noise, emissions and leaks advisory, how often does it fail next time?

1.7% of Morris Minor MOTs with a noise, emissions and leaks advisory were followed by a fail in the same group at the next MOT, typically 12.5 months and 310 miles later (1,249 advisories followed).

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,249 (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

Morris Minor by postcode area · Morris Minor body, chassis and structure failures · Morris Minor brakes failures · Morris Minor vehicle identification failures · Morris Minor lamps, reflectors and electrics failures · Morris Minor seat belts and airbags failures · Morris Minor steering failures · Morris Minor suspension failures · Morris Minor tyres failures · Morris Minor visibility failures