Does the Audi S5 fail the MOT on noise, emissions and leaks more than it should?
The Audi S5 records 2.89 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 4.29 expected for a car of the same age mix: less than expected for its class and age (−1.40, 95% interval −1.81 to −1.00). It ranks 484 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 Audi S5 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Audi S5 is “Engine MIL illuminated indicating a malfunction”, recorded 132 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Engine MIL illuminated indicating a malfunction | 132 | 1.31 |
| Emissions levels exceed default limits | 51 | 0.51 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 46 | 0.46 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 10,042 (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
Audi S5 in the Netherlands · Audi S5 by postcode area · Audi S5 body, chassis and structure failures · Audi S5 brakes failures · Audi S5 vehicle identification failures · Audi S5 lamps, reflectors and electrics failures · Audi S5 road wheels failures · Audi S5 seat belts and airbags failures · Audi S5 steering failures · Audi S5 suspension failures · Audi S5 tyres failures · Audi S5 visibility failures