Does the Mercedes-Benz GLS fail the MOT on visibility more than it should?

The Mercedes-Benz GLS records 3.59 visibility failure items per 100 initial MOT tests (2019–2024), against 5.15 expected for a car of the same age mix: less than expected for its class and age (−1.56, 95% interval −1.98 to −1.14). It ranks 497 of 746 models on visibility (1 = most failures above expected).

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

What exactly fails on visibility?

The most frequent DVSA defect wording in this group on the Mercedes-Benz GLS is “Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view”, recorded 265 times in 2019–2024.

Mercedes-Benz GLS: most frequent visibility defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view	265	2.38
Wiper blade defective	53	0.48

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 11,153 (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

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Does the Mercedes-Benz GLS fail the MOT on visibility more than it should?

What exactly fails on visibility?

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Other pages for this model