Does the Porsche Boxster fail the MOT on visibility more than it should?
The Porsche Boxster records 5.07 visibility failure items per 100 initial MOT tests (2019–2024), against 10.78 expected for a car of the same age mix: less than expected for its class and age (−5.71, 95% interval −5.86 to −5.57). It ranks 709 of 746 models on visibility (1 = most failures above expected).
Data release dvsa-2024-v2 (24 Sep 2026) · page updated 30 Sep 2026 · all models on visibility · check a Porsche Boxster by registration
What exactly fails on visibility?
The most frequent DVSA defect wording in this group on the Porsche Boxster is “Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view”, recorded 4,002 times in 2019–2024.
| DVSA defect wording | Items | Per 100 tests |
|---|---|---|
| Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view | 4,002 | 2.06 |
| Wiper blade missing or obviously not clearing the windscreen | 2,163 | 1.11 |
| Windscreen washers not working or not providing sufficient fluid to clear the windscreen | 1,649 | 0.85 |
| Wiper blade defective | 1,308 | 0.67 |
| Wiper not operating or missing | 231 | 0.12 |
Source: DVSA MOT bulk data (OGL v3.0) · Window: 2019–2024 · n = 194,725 (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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