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

The Mercedes-Benz S records 3.48 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 6.42 expected for a car of the same age mix: less than expected for its class and age (−2.94, 95% interval −3.68 to −2.19). It ranks 442 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 S by registration

No single lamps, reflectors and electrics defect wording reaches 30 items on the Mercedes-Benz S; the failures are spread across several.