Does the Porsche Cayman fail the MOT on lamps, reflectors and electrics more than it should?
The Porsche Cayman records 5.15 lamps, reflectors and electrics failure items per 100 initial MOT tests (2019–2024), against 18.08 expected for a car of the same age mix: less than expected for its class and age (−12.93, 95% interval −13.23 to −12.63). It ranks 656 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 Cayman by registration
What exactly fails on lamps, reflectors and electrics?
The most frequent DVSA defect wording in this group on the Porsche Cayman is “A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning”, recorded 1,072 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 1,072 | 1.37 |
| The aim of a headlamp is not within limits laid down in the requirements | 847 | 1.08 |
| A rear registration plate lamp or light source missing or inoperative in the case of multiple lamps or light sources | 386 | 0.49 |
| Headlamp reflector or lens slightly defective | 242 | 0.31 |
| Stop lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning | 189 | 0.24 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 78,380 (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
Other pages for this model
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