P Porsche Boxster MOT Pass Rate & Official DVSA Failure Statistics

Porsche Boxster MOT History and Failure Rates vs UK National Average

The Porsche Boxster passed on its first attempt in 85.3%, and its overall record sits +5.8 percentage points above the national average for all cars. These figures come from every recorded DVSA MOT test for the Porsche Boxster in the 2023–2025 data: 99,894 tests across 23 model years (2000–2022). A test still carries exactly one pass or fail verdict.

Figures are computed from every recorded DVSA test for this model in the 2023–2025 data.

Most Common Porsche Boxster MOT Problems by Failure Category

Every MOT failure a tester records belongs to one inspection section of the DVSA manual. For the Porsche Boxster, the Lamps, reflectors and electrical equipment section leads the record — the breakdown below shows where the recorded failures cluster, then the exact strings behind the three biggest sections.

Shares are over the Porsche Boxster's recorded defect strings, merged across its year pages.

Top Recorded Porsche Boxster DVSA MOT Test Statistics & Defect Descriptions

The descriptions below are the exact DVSA failure strings testers recorded most often for the Porsche Boxster, each with how many of the model's 99,894 tests it was noted on.

• "Catalyst emissions Lambda reading after 2nd fast idle outside specified limits" (Rectified) — noted on about 2,370 Porsche Boxster tests, 2.4% of the model's MOT record.
• "Windscreen damaged but not adversely affecting driver's view" (Minor) — noted on about 2,207 Porsche Boxster tests, 2.2% of the model's MOT record.
• "Coil spring fractured or broken" (Major) — noted on about 1,561 Porsche Boxster tests, 1.6% of the model's MOT record.
• "Registration plate lamp(s) inoperative in the case of multiple lamps or light sources" (Minor) — noted on about 1,498 Porsche Boxster tests, 1.5% of the model's MOT record.
• "Rigid brake pipes excessively corroded" (Major) — noted on about 1,309 Porsche Boxster tests, 1.3% of the model's MOT record.
• "Headlamp lens slightly defective" (Minor) — noted on about 1,082 Porsche Boxster tests, 1.1% of the model's MOT record.

Best and Worst Porsche Boxster Model Years by Pass Rate

The strongest Porsche Boxster model year on record is 2022 (97.2% across 253 tests), and the weakest is 2002 (80.3%). The gap between them is 16.9 points. Years with fewer than 50 recorded tests are excluded, so these are the years with enough MOT history to mean something.

Newest model year first. Only years with at least 50 recorded tests are listed.

Pre-MOT Inspection Checklist for Porsche Boxster Owners

These checks follow this Porsche Boxster's own most-recorded failure strings, starting with what a tester is most likely to flag on a Porsche Boxster.

• the exhaust and emissions — “catalyst emissions Lambda reading after 2nd fast idle outside specified limits”

  Listen for a blow at idle and have someone rev it gently. Then look at the tailpipe smoke: blue is oil, white when warm is coolant, black is over-fuelling. Any of those and the emissions test is the least of it.

• the windscreen — “windscreen damaged”

  Check the driver’s side of the screen within the swept area for chips and cracks; anything larger than 10mm in the driver’s central view is a fail. Most chips can be resin-repaired for far less than a new screen.

• the coil springs — “coil spring fractured or broken”

  Look up inside each wheel arch with a torch, all the way round the spring. A snapped spring usually breaks at the very bottom coil, where a quick glance will not reach.

Derived from the DVSA failure strings testers recorded for the Porsche Boxster. A check that finds nothing means the item is likely fine, not that the test is guaranteed.

Where the Porsche Boxster is most common

Across every Boxster model year on record (2000–2022): 46,760 Porsche Boxster cars tested in a recordable postcode area, across 99,884 tests. Guildford (GU) has the most, with 1,283 cars tested there. Cars are counted by the postcode area of the MOT station, so this is where they were tested, not necessarily where their owners live.

The twenty areas with the most Porsche Boxster cars in the record, sorted by car count — sort the columns for a different question. Cars tested at a station whose postcode area could not be resolved are counted in the model's total but in no area, so the shares add up to slightly under 100% even across every area, and an area's cars are a subset of the model's. Pass rate is blank below 30 tests in an area, where a percentage is noise rather than a finding. How this model's pass rate varies by postcode →

Frequently Asked Questions: Porsche Boxster MOT & Reliability