Does the Mercedes-Benz Viano fail the MOT on vehicle identification more than it should?

The Mercedes-Benz Viano records 0.62 vehicle identification failure items per 100 initial MOT tests (2019–2024), against 0.46 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) (+0.16, 95% interval +0.07 to +0.24). It ranks 170 of 636 models on vehicle identification (1 = most failures above expected).

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

What exactly fails on vehicle identification?

The most frequent DVSA defect wording in this group on the Mercedes-Benz Viano is “Number plate does not conform to the specified requirements”, recorded 118 times in 2019–2024.

Mercedes-Benz Viano: most frequent vehicle identification defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
Number plate does not conform to the specified requirements	118	0.36
Number plate inscription missing or illegible	47	0.14

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 32,805 (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 Viano fail the MOT on vehicle identification more than it should?

What exactly fails on vehicle identification?

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