Does the Seat Arona fail the MOT on lamps, reflectors and electrics more than it should?

The Seat Arona records 1.21 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 2.77 expected for a car of the same age mix: less than expected for its class and age (−1.56, 95% interval −1.65 to −1.47). It ranks 377 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 Seat Arona by registration

What exactly fails on lamps, reflectors and electrics?

The most frequent DVSA defect wording in this group on the Seat Arona is “The aim of a headlamp is not within limits laid down in the requirements”, recorded 375 times in 2019–2024.

Seat Arona: 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	375	0.28
An obligatory rear fog lamp missing, or a front or rear fog lamp inoperative or in the case of a multiple light source more than 1/2 not functioning	163	0.12
A lens defective which has no effect on emitted light	127	0.10
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED	110	0.08
Reflector defective or damaged by up to 50% of the reflecting surface	106	0.08

Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 132,980 (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 Seat Arona fail the MOT on lamps, reflectors and electrics more than it should?

What exactly fails on lamps, reflectors and electrics?

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