Does the Mazda 5 fail the MOT on noise, emissions and leaks more than it should?
The Mazda 5 records 12.62 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 5.33 expected for a car of the same age mix: more than expected for its class and age (+7.29, 95% interval +7.06 to +7.52). It ranks 15 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 5 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Mazda 5 is “Lambda coefficient outside the default limits or the range specified by the manufacturer”, recorded 3,376 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 3,376 | 3.68 |
| Engine MIL illuminated indicating a malfunction | 2,024 | 2.21 |
| Emissions test unable to be completed | 1,695 | 1.85 |
| Emissions levels exceed default limits | 1,323 | 1.44 |
| An induction or exhaust leak that could affect emissions levels | 1,033 | 1.13 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 91,686 (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 Mazda 5 gets a noise, emissions and leaks advisory, how often does it fail next time?
13.7% of Mazda 5 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 5,798 miles later (3,546 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 3,546 (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
Mazda 5 2005 · Mazda 5 2006 · Mazda 5 2007 · Mazda 5 2008 · Mazda 5 2009 · Mazda 5 2010 · Mazda 5 2011 · Mazda 5 2012 · Mazda 5 2013 · Mazda 5 2014 · Mazda 5 2015 · Mazda 5 in Norway · Mazda 5 in Finland · Mazda 5 in the Netherlands · Mazda 5 by postcode area · Mazda 5 body, chassis and structure failures · Mazda 5 brakes failures · Mazda 5 vehicle identification failures · Mazda 5 lamps, reflectors and electrics failures · Mazda 5 road wheels failures · Mazda 5 seat belts and airbags failures · Mazda 5 steering failures · Mazda 5 suspension failures · Mazda 5 tyres failures · Mazda 5 visibility failures