Does the Peugeot 508 fail the MOT on noise, emissions and leaks more than it should?
The Peugeot 508 records 1.89 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 2.32 expected for a car of the same age mix: about as expected for its class and age (the difference is within its interval or under 0.5 items per 100 tests) (−0.43, 95% interval −0.52 to −0.34). It ranks 354 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 Peugeot 508 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Peugeot 508 is “Engine MIL illuminated indicating a malfunction”, recorded 762 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Engine MIL illuminated indicating a malfunction | 762 | 0.73 |
| Smoke opacity levels exceed the manufacturer's specified limit | 640 | 0.61 |
| Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users | 150 | 0.14 |
| Emissions test unable to be completed | 116 | 0.11 |
| Smoke opacity levels exceed default limit | 98 | 0.09 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 104,376 (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 Peugeot 508 gets a noise, emissions and leaks advisory, how often does it fail next time?
4.3% of Peugeot 508 MOTs with a noise, emissions and leaks advisory were followed by a fail in the same group at the next MOT, typically 12.1 months and 8,644 miles later (3,391 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 3,391 (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
Peugeot 508 2011 · Peugeot 508 2012 · Peugeot 508 2013 · Peugeot 508 2014 · Peugeot 508 2015 · Peugeot 508 2016 · Peugeot 508 2017 · Peugeot 508 2018 · Peugeot 508 2019 · Peugeot 508 2020 · Peugeot 508 in Norway · Peugeot 508 in Finland · Peugeot 508 in the Netherlands · Peugeot 508 by postcode area · Peugeot 508 body, chassis and structure failures · Peugeot 508 brakes failures · Peugeot 508 vehicle identification failures · Peugeot 508 lamps, reflectors and electrics failures · Peugeot 508 road wheels failures · Peugeot 508 seat belts and airbags failures · Peugeot 508 steering failures · Peugeot 508 suspension failures · Peugeot 508 tyres failures · Peugeot 508 visibility failures