Does the Porsche Cayenne fail the MOT on lamps, reflectors and electrics more than it should?
The Porsche Cayenne records 9.67 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 16.22 expected for a car of the same age mix: less than expected for its class and age (−6.55, 95% interval −6.75 to −6.35). It ranks 556 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 Porsche Cayenne by registration
What exactly fails on lamps, reflectors and electrics?
The most frequent DVSA defect wording in this group on the Porsche Cayenne is “A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources”, recorded 3,364 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources | 3,364 | 2.14 |
| The aim of a headlamp is not within limits laid down in the requirements | 2,954 | 1.88 |
| A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED | 1,255 | 0.80 |
| Headlamp reflector or lens slightly defective | 1,135 | 0.72 |
| A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 1,039 | 0.66 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 157,425 (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
If a Porsche Cayenne gets a lamps, reflectors and electrics advisory, how often does it fail next time?
25.3% of Porsche Cayenne MOTs with a lamps, reflectors and electrics advisory were followed by a fail in the same group at the next MOT, typically 12.1 months and 4,478 miles later (892 advisories followed).
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 892 (advisories followed) · Method: the same vehicles followed to their next ordinary MOT · Updated: 30 Sep 2026 · Release: dvsa-2024-v2 · CSV
Other pages for this model
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