MOT statistics · 2023 tests

Porsche Cayman MOT pass rate, common failures and mileage

In 2023, 90.3% of 14,593 MOT tests on the Porsche Cayman ended in a pass, 13.8 points above the 76.5% average for all cars. Comparing like for like at ages 3 to 10, it passed 94.2% against 82.0%.

Pass rate

90.3%

All cars 76.5%

Tests

14,593

Initial MOTs in 2023

Ages 3 to 10

94.2%

All cars 82.0%

Mileage at 10

45k

Median; middle half 33k to 59k

Pass rate and mileage by age

Each row covers the Porsche Cayman MOT tests at that age. Mileage shows the median and the middle half of odometer readings, from the 25th to the 75th percentile.

Age	Pass rate	Mileage
2565 tests	97.0%	9,000 · 5k to 15k
31,002 tests	96.8%	15,000 · 9k to 21k
41,085 tests	95.6%	21,000 · 13k to 29k
51,111 tests	93.9%	25,000 · 17k to 35k
6764 tests	94.5%	27,000 · 17k to 37k
71,192 tests	95.4%	25,000 · 15k to 37k
81,149 tests	93.5%	39,000 · 27k to 51k
91,195 tests	92.7%	43,000 · 29k to 57k
10537 tests	90.7%	45,000 · 33k to 59k
11491 tests	92.1%	47,000 · 33k to 65k
12531 tests	91.0%	55,000 · 39k to 71k
13560 tests	89.5%	63,000 · 45k to 79k
14722 tests	86.4%	67,000 · 47k to 85k
151,192 tests	81.7%	71,000 · 53k to 87k
161,480 tests	81.6%	75,000 · 57k to 93k
171,017 tests	79.8%	77,000 · 59k to 95k

Cayman pass rateAll cars at that ageMiddle half of mileages

Most common MOT failures and advisories

How often each item came up, per 100 MOT tests on the Porsche Cayman. Advisories are things the tester noted that did not fail the car, often wear that will need attention soon. Follow an item to see what it means and how serious it is.

Failures

Side and tail lights

A lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning

1.4in 100 tests

Exhaust emissions

Lambda coefficient outside the default limits or the range specified by the manufacturer

0.9in 100 tests

Tyre tread

Tyre tread depth not in accordance with the requirements

0.9in 100 tests

Headlight aim

The aim of a headlamp is not within limits laid down in the requirements

0.9in 100 tests

Brake pipes

Brake pipe damaged or excessively corroded

0.8in 100 tests

Coil springs

A spring or spring component fractured or seriously weakened

0.8in 100 tests

Wiper blades

Wiper blade missing or obviously not clearing the windscreen

0.6in 100 tests

Warning lights

Engine MIL illuminated indicating a malfunction

0.5in 100 tests

Advisories and minor defects

Brake discs

Brake disc or drum excessively weakened, insecure or fractured

6.7in 100 tests

Brake pipes

Brake pipe damaged or excessively corroded

6.1in 100 tests

Engine oil leaks

Fluid leaking excessively and likely to harm the environment or to pose a safety risk to other road users

1.9in 100 tests

Windscreen

Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view (minor defect)

1.6in 100 tests

Brake pads

A brake lining or pad worn below 1.5mm

1.6in 100 tests

Tyre tread

Tyre tread depth not in accordance with the requirements

1.2in 100 tests

Suspension bushes

A suspension pin, bush or joint excessively worn

1.1in 100 tests

Exhaust

Exhaust system leaking or insecure

0.9in 100 tests

What to check on a used Cayman

The parts that come up most often in Porsche Cayman MOTs, and how to look at them on a viewing.

Brake discs and pads
Ask when the discs and pads were last replaced, and look through the wheel for a raised lip on the edge of the disc.
Brake pipes and hoses
Look underneath at the metal brake pipes for heavy rust, and at the rubber hoses for cracks or bulges.
Oil leaks
Look under the engine and gearbox, and at the ground where the car was parked, for fresh oil.
Wipers, washers and windscreen
Run the wipers and washers, and look for chips or cracks in the windscreen, above all in front of the driver.
Lights
Walk round with every light on, and ask someone to press the brake pedal so you can see both brake lights.

Check a specific Cayman

Fleet averages only go so far. Enter the registration to see that car's own MOT history, mileage record and current condition, free.

Questions

What is the MOT pass rate of the Porsche Cayman?

In 2023, 90.3% of 14,593 initial MOT tests on the Porsche Cayman ended in a pass, against 76.5% for all cars and light vans. At ages 3 to 10, with the same age mix as all cars, it was 94.2% against 82.0%.

What fails most often on a Porsche Cayman MOT?

The most common failures were side and tail lights (1.4 in 100 tests), exhaust emissions (0.9 in 100 tests), tyre tread (0.9 in 100 tests).

What is a normal mileage for a 10-year-old Porsche Cayman?

At 10 years old, the median Porsche Cayman at its MOT had covered 45,000 miles, and the middle half had between 33,000 and 59,000 miles.

What do MOT testers most often advise on a Porsche Cayman?

The most common advisories were brake discs (6.7 in 100 tests), brake pipes (6.1 in 100 tests), engine oil leaks (1.9 in 100 tests).

Other Porsche models

Overall MOT pass rate in 2023. Compare all Porsche models or see every make.

91189.0%Boxster83.9%Cayenne86.4%Macan92.9%Cayman90.3%Panamera87.9%

How these figures are made. We counted every initial MOT test (not retests) of cars and light vans in Great Britain in 2023 from the DVSA anonymised MOT dataset, 33,842,940 tests in all. Pass rate is the share of initial tests that ended in a pass, counting faults fixed during the test. Age is whole years from first registration to the test, so a car having its first MOT a few weeks early counts as 2.

Like-for-like pass rates average each model's pass rate at ages 3 to 10 with the same age mix for every model, so a model is not flattered by a young fleet or penalised by an old one. Models are grouped by the first word of the DVSA model name, and names that cover several models are left out.

Contains public sector information licensed under the Open Government Licence v3.0. RegTail's analysis of the DVSA anonymised MOT dataset, 2023 tests.