Does the Jeep Wrangler fail the MOT on noise, emissions and leaks more than it should?
The Jeep Wrangler records 3.62 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 4.79 expected for a car of the same age mix: less than expected for its class and age (−1.17, 95% interval −1.40 to −0.93). It ranks 466 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 Jeep Wrangler by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Jeep Wrangler is “Engine MIL illuminated indicating a malfunction”, recorded 381 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Engine MIL illuminated indicating a malfunction | 381 | 1.12 |
| Emissions levels exceed default limits | 271 | 0.79 |
| Lambda coefficient outside the default limits or the range specified by the manufacturer | 183 | 0.54 |
| Emissions test unable to be completed | 132 | 0.39 |
| Emissions levels exceed the manufacturer's specified limits | 95 | 0.28 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 34,138 (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 Jeep Wrangler gets a noise, emissions and leaks advisory, how often does it fail next time?
4.5% of Jeep Wrangler 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 2,229 miles later (1,503 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,503 (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
Jeep Wrangler 2011 · Jeep Wrangler 2012 · Jeep Wrangler 2013 · Jeep Wrangler 2014 · Jeep Wrangler 2015 · Jeep Wrangler 2016 · Jeep Wrangler 2017 · Jeep Wrangler 2018 · Jeep Wrangler 2019 · Jeep Wrangler 2020 · Jeep Wrangler in Norway · Jeep Wrangler in the Netherlands · Jeep Wrangler by postcode area · Jeep Wrangler body, chassis and structure failures · Jeep Wrangler brakes failures · Jeep Wrangler vehicle identification failures · Jeep Wrangler lamps, reflectors and electrics failures · Jeep Wrangler road wheels failures · Jeep Wrangler seat belts and airbags failures · Jeep Wrangler steering failures · Jeep Wrangler suspension failures · Jeep Wrangler tyres failures · Jeep Wrangler visibility failures