Does the Mercedes-Benz G-Class fail the MOT on brakes more than it should?
The Mercedes-Benz G-Class records 5.45 brakes failure items per 100 initial MOT tests (2019–2024), against 8.14 expected for a car of the same age mix: less than expected for its class and age (−2.69, 95% interval −3.44 to −1.94). It ranks 490 of 712 models on brakes (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on brakes · check a Mercedes-Benz G-Class by registration
What exactly fails on brakes?
The most frequent DVSA defect wording in this group on the Mercedes-Benz G-Class is “a brake lining or pad worn below 1.5mm”, recorded 53 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| a brake lining or pad worn below 1.5mm | 53 | 0.95 |
| Brake pipe damaged or excessively corroded | 41 | 0.73 |
| Parking brake efficiency below minimum requirement | 35 | 0.63 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 5,580 (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
Other pages for this model
Mercedes-Benz G-Class by postcode area · Mercedes-Benz G-Class body, chassis and structure failures · Mercedes-Benz G-Class vehicle identification failures · Mercedes-Benz G-Class lamps, reflectors and electrics failures · Mercedes-Benz G-Class noise, emissions and leaks failures · Mercedes-Benz G-Class seat belts and airbags failures · Mercedes-Benz G-Class steering failures · Mercedes-Benz G-Class suspension failures · Mercedes-Benz G-Class tyres failures · Mercedes-Benz G-Class visibility failures