Does the Mazda RX-7 fail the MOT on noise, emissions and leaks more than it should?
The Mazda RX-7 records 14.02 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 7.95 expected for a car of the same age mix: more than expected for its class and age (+6.07, 95% interval +4.86 to +7.29). It ranks 22 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 Mazda RX-7 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Mazda RX-7 is “Emissions levels exceed default limits”, recorded 249 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Emissions levels exceed default limits | 249 | 6.83 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 100 | 2.74 |
| Emissions levels exceed the manufacturer's specified limits | 65 | 1.78 |
| Emissions test unable to be completed | 41 | 1.13 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 3,644 (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
Mazda RX-7 by postcode area · Mazda RX-7 body, chassis and structure failures · Mazda RX-7 brakes failures · Mazda RX-7 vehicle identification failures · Mazda RX-7 lamps, reflectors and electrics failures · Mazda RX-7 seat belts and airbags failures · Mazda RX-7 steering failures · Mazda RX-7 suspension failures · Mazda RX-7 tyres failures · Mazda RX-7 visibility failures