Does the Mercedes-Benz GLC fail the MOT on steering more than it should?

The Mercedes-Benz GLC records 0.04 steering failure items per 100 initial MOT tests (2019–2024), against 0.55 expected for a car of the same age mix: less than expected for its class and age (−0.51, 95% interval −0.54 to −0.48). It ranks 290 of 640 models on steering (1 = most failures above expected).

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

What exactly fails on steering?

The most frequent DVSA defect wording in this group on the Mercedes-Benz GLC is “A steering ball joint with excessive wear or free play”, recorded 36 times in 2019–2024.

Mercedes-Benz GLC: most frequent steering defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
A steering ball joint with excessive wear or free play	36	0.01

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 299,023 (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 GLC fail the MOT on steering more than it should?

What exactly fails on steering?

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