Does the Morgan Plus 4 fail the MOT on noise, emissions and leaks more than it should?
The Morgan Plus 4 records 2.66 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 5.79 expected for a car of the same age mix: less than expected for its class and age (−3.13, 95% interval −3.53 to −2.73). It ranks 613 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 Morgan Plus 4 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Morgan Plus 4 is “Emissions levels exceed default limits”, recorded 157 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Emissions levels exceed default limits | 157 | 1.13 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 97 | 0.70 |
| Emissions levels exceed the manufacturer's specified limits | 46 | 0.33 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 13,882 (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
Other pages for this model
Morgan Plus 4 by postcode area · Morgan Plus 4 body, chassis and structure failures · Morgan Plus 4 brakes failures · Morgan Plus 4 vehicle identification failures · Morgan Plus 4 lamps, reflectors and electrics failures · Morgan Plus 4 steering failures · Morgan Plus 4 suspension failures · Morgan Plus 4 tyres failures · Morgan Plus 4 visibility failures