2006 Porsche Cayman MOT pass rate, common failures & what to check
In 2025, 79.3% of Porsche Caymans first used in 2006 passed their MOT first time, against 57.0% for all cars first used in 2006. Across 4,426 Cayman first tests from 2023 to 2025, the most common failure areas were lamps and electrical equipment, noise, emissions and leaks and brakes.
This page analyses first MOT tests for Porsche Caymans first used in 2006 (all trims grouped): 2021 to 2025 for the pass-rate trend, and 2023 to 2025 for the failure and advisory analysis — plus what is worth checking before you buy one.
Data: DVSA anonymised MOT tests to December 2025 · Calculated by SortedCars · Updated October 2026
How the 2006 Porsche Cayman MOT pass rate has changed
Share of first tests passed in each year, Caymans first used in 2006 against all cars first used in 2006 (any make or fuel; not adjusted for mileage, fuel or use). In 2025 the Cayman figure was 22.3 points higher.
View this chart as a table
| Test year | 2006 Cayman | All cars first used 2006 | Cayman first tests |
|---|---|---|---|
| 2021 | 78.5% | 55.5% | 1,561 |
| 2022 | 77.6% | 56.0% | 1,564 |
| 2023 | 77.4% | 56.2% | 1,519 |
| 2024 | 78.2% | 56.1% | 1,470 |
| 2025 | 79.3% | 57.0% | 1,437 |
Common 2006 Porsche Cayman MOT failures
Share of the 961 failed first tests (2023–2025) with at least one failure in each area. A test can fail in more than one area, so the shares add up to more than 100%.
Most common failure items
| DVSA failure item | Share of failed first tests | Tests |
|---|---|---|
| Position lamp: not working | 20.5% | 197 |
| Catalyst emissions: Lambda reading after 2nd fast idle outside specified limits | 16.2% | 156 |
| Rigid brake pipes: excessively corroded | 9.8% | 94 |
| Coil spring: fractured or broken | 8.8% | 85 |
| Headlamp aim: too high | 7.9% | 76 |
Item names are DVSA’s own wording. 2023–2025 combined.
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Typical repair costs for common MOT failures
Typical UK garage prices for the job, not for a Cayman in particular, and not a quote.
| Failure item | Typical job | Typical UK price | Usual range |
|---|---|---|---|
| Coil spring: fractured or broken | Coil spring replacement | £248 | £175–£400 |
From published UK repair-cost guides, checked September 2026. Only jobs with a published typical price are shown.
What to check on a 2006 Porsche Cayman before buying
The three areas where failed first tests most often had a fault, 2023–2025.
- Lamps and electrics. Ask someone to watch while you work the brake lights, indicators, sidelights, dipped and main beam, and the number-plate lamps.
- Engine and emissions. Worth checking that the engine warning light goes out after starting, looking for oil leaks under the car, and noticing any smoke from the exhaust.
- Brakes. Worth looking at the discs and pads through the wheel spokes for scoring and a worn lip, and noticing on the test drive whether the car pulls to one side or the pedal feels long.
Common 2006 Porsche Cayman MOT advisories
Advisories are points the tester noted that did not fail the car. Most common on 2006 Caymans, as a share of all 4,426 first tests, 2023–2025.
| DVSA advisory item | Share of first tests | Tests |
|---|---|---|
| Rigid brake pipes: corroded, covered in grease or other material | 15.5% | 685 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 12.9% | 570 |
| Tread depth: worn close to legal limit/worn on edge | 9.1% | 402 |
| Tyre condition: slightly damaged/cracking or perishing | 6.6% | 294 |
| Play in steering rack inner joint(s) | 6.3% | 279 |
Questions about the 2006 Porsche Cayman MOT
What is the MOT pass rate of a 2006 Porsche Cayman?
In 2025, 79.3% of Caymans first used in 2006 passed their MOT first time, against 57.0% for all cars first used in 2006. A car fixed during the test counts as a fail.
What does a 2006 Cayman most often fail its MOT on?
Lamps and electrical equipment (in 43.1% of failed first tests, 2023–2025), noise, emissions and leaks (26.7%) and brakes (25.1%). The single most common item was “Position lamp: not working” (20.5%).
How often does a 2006 Porsche Cayman fail its MOT?
In 2025, 20.7% of first tests on Caymans first used in 2006 did not pass first time: 18.2% failed, and a further 2.5% had a fault fixed during the test (counted as a fail here). Across 2023–2025, 961 of 4,426 first tests did not pass first time.
What are the most common 2006 Porsche Cayman MOT advisories?
“Rigid brake pipes: corroded, covered in grease or other material” (on 15.5% of first tests, 2023–2025), “Brake discs: worn, pitted or scored, but not seriously weakened” (12.9%), “Tread depth: worn close to legal limit/worn on edge” (9.1%), “Tyre condition: slightly damaged/cracking or perishing” (6.6%) and “Play in steering rack inner joint(s)” (6.3%).
Is a 2006 Porsche Cayman reliable?
An MOT pass rate shows what failed at the test, not how reliable a car is. For this group of cars the first-time pass rate went from 78.5% in 2021 to 79.3% in 2025. For one particular car, its own MOT history matters more than the average.
Other cars first used in 2006
The most-tested cars from the same year. Each page uses the same method.
2006 Ford Fiesta MOT statistics · 2006 Volkswagen Golf MOT statistics · 2006 Ford Focus MOT statistics · 2006 Vauxhall Astra MOT statistics · 2006 MINI Hatch MOT statistics
Checking a specific 2006 Cayman?
The numbers above cover every Cayman first used in 2006 and tested in Great Britain. Our free check shows the actual MOT history, mileage record and tax status of the one you are looking at.
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