Buying Report · £14.99
Tools

Common problems by part

Porsche Cayman body and structure problems

DVSA MOT tests 2022–2025 · 4,566 MOT tests · Updated

At 16 years, 1.3 in 100 MOT tests of the Porsche Cayman failed on body and structure, against 7.6 for all class 4 vehicles the same age (all test years; 4,566 MOT tests) [1].

Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.

  • Against all class 4 vehicles the same age: about average for all class 4 vehicles the same age (all test years), 60 MOT tests with a fail
  • By age: seen at 16 ages from 3 to 19 years, 55,366 MOT tests
  • Most common fail: Exhaust system: has a major leak of exhaust gases, 0.7 per 100 MOT tests

Figures are for the model as a whole, not for one car.

What the MOT tests show

What we know

1.3 fails per 100 MOT tests at 16 years, against 7.6 for all class 4 vehicles tested at 16 (all test years). That is about average.

Why it matters

A body and structure fail stops the car passing until it is fixed; the most common one is rated major by DVSA.

What to check

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

Porsche Cayman body and structure fails by age

Porsche Cayman body and structure fails per 100 MOT tests by ageSolid line: the Porsche Cayman. Dashed line: all cars the same age. The table below lists every value.053 years: 0.0 per 100 (all cars 0.3), 3,462 MOT tests34 years: 0.1 per 100 (all cars 0.3), 3,925 MOT tests6 years: 0.0 per 100 (all cars 0.8), 4,231 MOT tests67 years: 0.1 per 100 (all cars 1.3), 4,211 MOT tests8 years: 0.0 per 100 (all cars 1.8), 4,257 MOT tests89 years: 0.1 per 100 (all cars 2.3), 4,356 MOT tests10 years: 0.1 per 100 (all cars 2.9), 3,701 MOT tests1011 years: 0.2 per 100 (all cars 3.5), 3,156 MOT tests12 years: 0.3 per 100 (all cars 4.3), 2,493 MOT tests1213 years: 0.4 per 100 (all cars 5.0), 2,133 MOT tests14 years: 0.4 per 100 (all cars 5.9), 2,650 MOT tests1415 years: 1.1 per 100 (all cars 6.7), 3,578 MOT tests16 years: 1.3 per 100 (all cars 7.6), 4,566 MOT tests1617 years: 1.6 per 100 (all cars 8.3), 3,980 MOT tests18 years: 1.5 per 100 (all cars 8.7), 3,053 MOT tests1819 years: 1.2 per 100 (all cars 9.0), 1,614 MOT tests
Fails per 100 MOT tests by age, all first-use years pooled. Porsche Cayman All class 4 vehicles the same age Shaded: over 18 years, survivors only.
AgeMOT testsFails per 100All class 4 vehicles the same age
33,4620.00.3
43,9250.10.3
64,2310.00.8
74,2110.11.3
84,2570.01.8
94,3560.12.3
103,7010.12.9
113,1560.23.5
122,4930.34.3
132,1330.45.0
142,6500.45.9
153,5781.16.7
164,5661.37.6
173,9801.68.3
183,0531.58.7
19*1,6141.29.0

All first-use years of the Porsche Cayman pooled at each age, against all class 4 vehicles at that age over all 2022–2025 test years. * Only survivors are still tested at this age.

What fails in the body and structure at 16 years

Fails

Advisories (not fails)

Replace leaking exhaust section cost

Buying a Porsche Cayman? Check that exact car before the viewing.

Buying Report £14.99 incl. VAT · one car · no subscription · Not a mechanical inspection.

  • Model risks for this year and fuel
  • What similar cars did at their next MOT
  • Repairs ahead
  • Viewing checklist

See a sample report

How to check on a test drive

Look under the sills, jacking points and rear subframe for rot, bubbling or fresh underseal over a repair, and check every door, bonnet and boot shuts properly.

The most common advisory here in MOT records: Exhaust system: has a minor leak of exhaust gases.

Check one Porsche Cayman, not the average

The figures here describe Porsche Cayman cars as a group. These free tools answer for one car. Each line says what the tool reads.

Other Porsche Cayman problems

Body and structure on rival models

Questions people ask

Does the Porsche Cayman have more body and structure problems than other cars?

1.3 in 100 MOT tests at 16 years, against 7.6 for all class 4 vehicles the same age: about average by our test (all test years; 4,566 MOT tests).

How common are Porsche Cayman body and structure problems?

1.3 in 100 MOT tests at 16 years failed on body and structure, against 7.6 for all class 4 vehicles the same age (all test years; 4,566 MOT tests).

What is the most common Porsche Cayman body and structure fail?

0.7 in 100 MOT tests at 16 years: Exhaust system: has a major leak of exhaust gases (33 MOT tests with it).

Sources

  1. Driver and Vehicle Standards Agency, Anonymised MOT tests and results, 2022 to 2025. DVSA MOT data, Open Government Licence v3.0, 59,394 MOT tests. Accessed 7 Oct 2026.

Parts: against all class 4 vehicles at the same age, all 2022–2025 test years pooled, not adjusted for mileage. Breakdowns and non-MOT faults are not in this data. How we compare