In 2025, 29,009 Porsche Cayenne cars had a regular MOT in Great Britain. 85% passed first time, compared with 72% for all cars of the same ages, which makes the Cayenne better than average. Adjusted for age, it ranks 7 of the 217 most-tested car models.
That comparison matters: older cars fail more often, so a raw pass rate flatters models that are mostly young. We compare each model against every car on the road at the same age.
Pass rate by age
At 3 years old, 94% of Cayennes passed first time (all cars that age: 88%). By 20 years, that figure is 72% (all cars: 58%). It beats the average car at every age with enough data, from 3 to 20 years.
Porsche Cayenne All cars of that age
| Age | Tests | Cayenne passed first time | All cars | Typical mileage |
|---|---|---|---|---|
| 3 years | 856 | 94% | 88% | 26,465 |
| 4 years | 1,445 | 94% | 87% | 34,016 |
| 5 years | 2,079 | 91% | 86% | 41,799 |
| 6 years | 3,094 | 91% | 84% | 46,768 |
| 7 years | 1,824 | 89% | 81% | 59,253 |
| 8 years | 1,763 | 87% | 78% | 71,022 |
| 9 years | 2,776 | 86% | 75% | 78,211 |
| 10 years | 2,321 | 85% | 72% | 85,442 |
| 11 years | 1,855 | 85% | 69% | 93,634 |
| 12 years | 2,133 | 83% | 66% | 101,987 |
| 13 years | 1,747 | 84% | 63% | 108,057 |
| 14 years | 1,072 | 81% | 61% | 115,555 |
| 15 years | 810 | 82% | 59% | 118,122 |
| 16 years | 773 | 74% | 58% | 121,104 |
| 17 years | 540 | 76% | 57% | 110,372 |
| 18 years | 623 | 74% | 57% | 114,869 |
| 19 years | 784 | 73% | 57% | 120,411 |
| 20 years | 1,129 | 72% | 58% | 123,701 |
What fails most on a Porsche Cayenne
The area that lets the Cayenne down most, relative to other cars, is plates and VIN: 0.9% of tests failed on it, 24.4 times the rate for the average car. It does comparatively well on body and structure and suspension.
Share of Cayenne tests failing on this area Average car
The six most common failure items
| Failure item | Area | Share of tests |
|---|---|---|
| A tyre seriously damaged | Tyres | 2.9% |
| A spring or spring component fractured or seriously weakened | Suspension | 2.8% |
| The aim of a headlamp is not within limits laid down in the requirements | Lights and electrics | 2.4% |
| Tyre tread depth not in accordance with the requirements | Tyres | 2.0% |
| Engine MIL illuminated indicating a malfunction | Emissions and leaks | 1.5% |
| A tyre cords visible or damaged | Tyres | 1.2% |
What to check when buying a used Cayenne
Based on where the Cayenne fails more often than other cars, these are the checks worth making before you buy:
- Plates and VIN: Check the number plates are legal and the VIN matches the V5C logbook. More
- Tyres: Check tread across the whole width (uneven wear hints at alignment or suspension faults), and look for cuts, bulges and mismatched brands. Repair guide
- Emissions and leaks: Look for oil and coolant leaks underneath, listen for exhaust blows on a cold start, and watch for smoke when revving. Repair guide
Then check the individual car: its own MOT history will show whether it follows the pattern. A car with repeated advisories in the same weak area is more likely to fail its next test.
Check a specific Cayenne
Enter the registration to see its full MOT history, mileage record and reliability score, compared with these figures.
Check a CayenneFrequently asked questions
What is the MOT pass rate for a Porsche Cayenne?
In 2025, 85% of Porsche Cayenne cars passed their MOT first time, across 29,009 tests. Cars of the same ages averaged 72%.
What do Porsche Cayenne cars most often fail their MOT on?
The most common failure items were: a tyre seriously damaged (2.9% of tests); a spring or spring component fractured or seriously weakened (2.8% of tests); the aim of a headlamp is not within limits laid down in the requirements (2.4% of tests).
Other Porsche models
Porsche 911 (88%), Porsche Boxster (83%). All Porsche models
Source: DVSA anonymised MOT tests and results, 2025 (class 4 normal tests; first-time pass means passed with no faults fixed at the test). Contains public sector information licensed under the Open Government Licence v3.0.