Does the Alfa Romeo 147 fail the MOT on noise, emissions and leaks more than it should?
The Alfa Romeo 147 records 7.35 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 7.80 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) (−0.45, 95% interval −0.82 to −0.08). It ranks 360 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 Alfa Romeo 147 by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Alfa Romeo 147 is “Engine MIL illuminated indicating a malfunction”, recorded 465 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Engine MIL illuminated indicating a malfunction | 465 | 2.11 |
| Smoke opacity levels exceed the manufacturer's specified limit | 229 | 1.04 |
| Emissions test unable to be completed | 200 | 0.91 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 155 | 0.70 |
| Emissions levels exceed default limits | 137 | 0.62 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 22,070 (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 Alfa Romeo 147 gets a noise, emissions and leaks advisory, how often does it fail next time?
7.6% of Alfa Romeo 147 MOTs with a noise, emissions and leaks advisory were followed by a fail in the same group at the next MOT, typically 12.2 months and 3,533 miles later (1,571 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,571 (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
Alfa Romeo 147 2002 · Alfa Romeo 147 2003 · Alfa Romeo 147 2004 · Alfa Romeo 147 2005 · Alfa Romeo 147 2006 · Alfa Romeo 147 2007 · Alfa Romeo 147 2008 · Alfa Romeo 147 2009 · Alfa Romeo 147 in the Netherlands · Alfa Romeo 147 by postcode area · Alfa Romeo 147 body, chassis and structure failures · Alfa Romeo 147 brakes failures · Alfa Romeo 147 vehicle identification failures · Alfa Romeo 147 lamps, reflectors and electrics failures · Alfa Romeo 147 road wheels failures · Alfa Romeo 147 seat belts and airbags failures · Alfa Romeo 147 steering failures · Alfa Romeo 147 suspension failures · Alfa Romeo 147 tyres failures · Alfa Romeo 147 visibility failures