Does the Mercedes-Benz GL fail the MOT on noise, emissions and leaks more than it should?
The Mercedes-Benz GL records 2.57 noise, emissions and leaks failure items per 100 initial MOT tests (2019–2024), against 3.71 expected for a car of the same age mix: less than expected for its class and age (−1.14, 95% interval −1.40 to −0.88). It ranks 462 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 Mercedes-Benz GL by registration
What exactly fails on noise, emissions and leaks?
The most frequent DVSA defect wording in this group on the Mercedes-Benz GL is “Engine MIL illuminated indicating a malfunction”, recorded 274 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Engine MIL illuminated indicating a malfunction | 274 | 1.34 |
| Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users | 72 | 0.35 |
| Smoke opacity levels exceed the manufacturer's specified limit | 67 | 0.33 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 20,497 (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 Mercedes-Benz GL gets a noise, emissions and leaks advisory, how often does it fail next time?
5.7% of Mercedes-Benz GL 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 5,823 miles later (1,155 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 1,155 (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
Mercedes-Benz GL 2006 · Mercedes-Benz GL 2007 · Mercedes-Benz GL 2008 · Mercedes-Benz GL 2009 · Mercedes-Benz GL 2010 · Mercedes-Benz GL 2011 · Mercedes-Benz GL 2012 · Mercedes-Benz GL 2013 · Mercedes-Benz GL 2014 · Mercedes-Benz GL 2015 · Mercedes-Benz GL 2016 · Mercedes-Benz GL in Norway · Mercedes-Benz GL in Finland · Mercedes-Benz GL in the Netherlands · Mercedes-Benz GL by postcode area · Mercedes-Benz GL body, chassis and structure failures · Mercedes-Benz GL brakes failures · Mercedes-Benz GL vehicle identification failures · Mercedes-Benz GL lamps, reflectors and electrics failures · Mercedes-Benz GL road wheels failures · Mercedes-Benz GL seat belts and airbags failures · Mercedes-Benz GL steering failures · Mercedes-Benz GL suspension failures · Mercedes-Benz GL tyres failures · Mercedes-Benz GL visibility failures