Does the Mercedes-Benz GLA fail the MOT on road wheels more than it should?

The Mercedes-Benz GLA records 0.22 road wheels failure items per 100 initial MOT tests (2019–2024), against 0.24 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) (−0.02, 95% interval −0.03 to +0.00). It ranks 223 of 516 models on road wheels (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on road wheels · check a Mercedes-Benz GLA by registration

What exactly fails on road wheels?

The most frequent DVSA defect wording in this group on the Mercedes-Benz GLA is “A wheel with a loose or missing wheel nut, bolt or stud”, recorded 686 times in 2019–2024.

Mercedes-Benz GLA: most frequent road wheels defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
A wheel with a loose or missing wheel nut, bolt or stud	686	0.19
Any fracture or welding defect on a wheel	58	0.02
A wheel with more than one loose or missing wheel nut, bolt or stud	36	0.01

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 353,008 (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

Does the Mercedes-Benz GLA fail the MOT on road wheels more than it should?

What exactly fails on road wheels?

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