Porsche Cayman MOT pass rate: 90.6% (14,165 tests, 2025)

The Porsche Cayman passed 90.6% of its 14,165 MOT tests in 2025 — 13.1 points above the UK average of 77.5%. The median tested example was 11 years old with 44,652 miles on the clock.

90.6%Pass rate (2025)

14,165MOT tests analysed

44,652 miMedian mileage at test

11 yrsMedian age at test

How the Cayman compares

Porsche Cayman

90.6%

UK average (all Class 4 vehicles)

77.5% across 33.1 million tests

Porsche average (all models)

89.5%

What fails most on the Porsche Cayman

Across failed and rectified tests in 2025, these vehicle systems produced the most defects on the Cayman:

#	System	Defects recorded	Share
1	Brakes	564	21.6%
2	Lamps, reflectors and electrical equipment	555	21.3%
3	Tyres	530	20.3%
4	Suspension	350	13.4%
5	Noise, emissions and leaks	292	11.2%
6	Visibility	168	6.4%

Pre-MOT checklist for Cayman owners

Based on the failure profile above, ten minutes with a torch before your test removes the most likely fail items:

Feel for a spongy pedal or pulling to one side; check pad wear through the wheel spokes if visible
Walk round with all lights on: one blown bulb is the most avoidable fail there is
Check tread with the 20p test and inspect sidewalls for cracking — tyres close to the limit are the country’s most common advisory
Bounce each corner and listen for clonks over speed bumps — suspension is this model’s (and the UK’s) top failure system
A blowing exhaust or visible smoke will fail; warm the engine fully before the test

Check the engine before the tester does

A stored fault code with the engine light on is an automatic Major defect. Scan and clear resolved faults before booking.

Topdon OBD2 scannersTopdon diagnostic scanners with full-system readouts
XTOOL diagnostic toolsXTOOL code readers for petrol and diesel cars
Autel UK testersAutel professional-grade diagnostic testers

Cayman pass rate by registration year

Registration year	Tests	Pass rate	Vs same-age	Median mileage
2006	4,245	81.7%	+17.2 pts	77,220
2007	4,063	83.6%	+18.4 pts	75,866
2008	2,558	82.6%	+17.5 pts	70,832
2009	1,922	89.5%	+23.1 pts	64,800
2010	1,567	88.8%	+21.5 pts	62,492
2011	1,505	90.3%	+21.2 pts	51,630
2013	2,452	91.8%	+18.5 pts	47,378
2014	3,532	92.8%	+17.0 pts	43,456
2015	3,247	94.6%	+15.9 pts	33,375
2016	2,912	94.7%	+13.4 pts	26,817
2017	2,624	94.4%	+10.4 pts	30,330
2018	3,525	94.5%	+8.1 pts	26,542
2019	2,983	94.9%	+6.5 pts	21,774

Check a specific Cayman before you buy

Pass rates describe the model; they can’t tell you about the one car you’re looking at. Run its plate through our free MOT history check to see its personal record of failures, advisories and mileage readings.

Other Porsche models

91190.2% pass rate · 45,808 tests Macan92.3% pass rate · 34,235 tests Boxster85.1% pass rate · 31,898 tests Cayenne87.5% pass rate · 28,929 tests Panamera89.7% pass rate · 6,631 tests Taycan 4S 93KWH91.8% pass rate · 3,101 tests 94481.9% pass rate · 2,105 tests Taycan 4X291.8% pass rate · 1,704 tests

FAQs

What is the MOT pass rate for a Porsche Cayman?

In 2025, 90.6% of 14,165 first MOT tests on the Porsche Cayman were passes (UK average: 77.5%). Data: DVSA anonymised MOT results.

What does the Cayman fail its MOT on most?

The biggest defect group is brakes (21.6% of its recorded defects), followed by lamps, reflectors and electrical equipment.

Is the Porsche Cayman reliable?

MOT pass rate is one lens on durability: at 90.6% it performs above the national average at a median age of 11 years and 44,652 miles. Always check the individual car's history too.

Source: DVSA Anonymised MOT tests and results, 2025 extract (Class 4 initial tests only; retests excluded). Contains public sector information licensed under the Open Government Licence v3.0. Figures rounded to one decimal place.