Porsche Cayman MOT failures and reliability
In 2023 the Porsche Cayman took 14,097 MOT tests in Britain and passed 89% of them first time, above the national average of 71% for all cars. The figures below come from the DVSA's record of every test, so they show what testers actually found on these cars rather than what owners report.
- MOT tests in 2023
- 14,097
- First-time pass rate
- 89%
- All cars
- 71%
What the Cayman fails on
Share of tests with at least one failure in each area, against the figure for all cars.
- Lights and electrics3.8% (all cars 11.3%)
- Tyres2.8% (all cars 6.4%)
- Brakes2.3% (all cars 6.8%)
- Suspension1.8% (all cars 9.0%)
- Exhaust and emissions1.7% (all cars 3.1%)
- Visibility1.3% (all cars 4.8%)
- Steering0.6% (all cars 1.8%)
- Number plates and VIN0.5% (all cars 0.4%)
Most common failure items
Share of tests on which each item was recorded.
- Position lamp: not working 1.5%
- Tread depth: tread depth below requirements of 1.6mm 1.1%
- Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits 1.0%
- Rigid brake pipes: excessively corroded 0.9%
- Headlamp aim: too high 0.9%
- Coil spring: fractured or broken 0.8%
- Tyres, condition: has a cut in excess of the requirements deep enough to reach the ply or cords 0.7%
- Wipers: does not clear the windscreen effectively 0.7%
Most common advisories
- Tread depth: worn close to legal limit/worn on edge 9.2%
- Brake discs: worn, pitted or scored, but not seriously weakened 7.0%
- Rigid brake pipes: corroded, covered in grease or other material 6.7%
- Tyres, condition: slightly damaged/cracking or perishing 5.8%
- Non-component advisories: Play in steering rack inner joint(s) 1.9%
- Engine oil leaks: leak, but not excessive 1.9%
- Non-component advisories: Nail in tyre 1.8%
- Brake pads: wearing thin 1.7%
Pass rate by year of registration
Older cars fail more often whatever the model, so compare a car with others of the same age.
| First registered | Tests | Pass rate |
|---|---|---|
| 2006 | 1,519 | 77% |
| 2007 | 1,439 | 79% |
| 2008 | 897 | 79% |
| 2009 | 662 | 89% |
| 2010 | 534 | 89% |
| 2011 | 537 | 90% |
| 2012 | 345 | 91% |
| 2013 | 1,050 | 91% |
| 2014 | 1,203 | 92% |
| 2015 | 1,125 | 94% |
| 2016 | 985 | 94% |
| 2017 | 884 | 95% |
| 2018 | 1,209 | 94% |
| 2019 | 1,058 | 96% |
| 2020 | 464 | 96% |
Typical mileage by age
Average odometer reading at the MOT, by the car's age in years at the test.
| Age at test | Average mileage |
|---|---|
| 3 years | 13,330 miles |
| 4 years | 19,246 miles |
| 5 years | 24,023 miles |
| 6 years | 28,295 miles |
| 7 years | 26,953 miles |
| 8 years | 33,227 miles |
| 9 years | 42,115 miles |
| 10 years | 46,366 miles |
| 11 years | 47,111 miles |
| 12 years | 53,250 miles |
| 13 years | 62,602 miles |
| 14 years | 64,084 miles |
| 15 years | 70,196 miles |
| 16 years | 74,428 miles |
| 17 years | 76,787 miles |
| 18 years | 79,643 miles |
Check a particular Cayman
Model figures tell you what to look out for. To see one car's own MOT history, mileage and tax, enter its registration.
Other Porsche models
- Porsche 911
- Porsche Boxster
- Porsche Cayenne
- Porsche Macan
- Porsche Panamera
- Porsche 944
- Porsche Taycan 4S 93KWH
Source: Department for Transport, Anonymised MOT tests and results, 2023, cars and light vans, normal tests only. Pass rates are first-time passes; a pass after repair at the test station counts as a fail. Contains public sector information licensed under the Open Government Licence v3.0.