Does the Mercedes-Benz 190 fail the MOT on lamps, reflectors and electrics more than it should?

The Mercedes-Benz 190 records 21.13 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 29.37 expected for a car of the same age mix: less than expected for its class and age (−8.24, 95% interval −9.16 to −7.33). It ranks 587 of 729 models on lamps, reflectors and electrics (1 = most failures above expected).

Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on lamps, reflectors and electrics · check a Mercedes-Benz 190 by registration

What exactly fails on lamps, reflectors and electrics?

The most frequent DVSA defect wording in this group on the Mercedes-Benz 190 is “The aim of a headlamp is not within limits laid down in the requirements”, recorded 380 times in 2019–2024.

Mercedes-Benz 190: most frequent lamps, reflectors and electrics defect wordings, 2019–2024 (30+ items each)
DVSA defect wording	Items	Per 100 tests
The aim of a headlamp is not within limits laid down in the requirements	380	2.83
A battery insecure but not likely to fall from carrier	360	2.68
A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning	309	2.30
A direction indicator lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning	301	2.24
A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources	208	1.55

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 13,451 (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 190 fail the MOT on lamps, reflectors and electrics more than it should?

What exactly fails on lamps, reflectors and electrics?

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