MOT fail rates by first-use year
2017 Porsche Cayenne MOT fail rate and common faults
How Porsche Cayenne cars first used in 2017 did at their MOTs from 2022 to 2025, against all cars of the same age. From 7,296 DVSA MOT tests of these cars. First use is usually the date the car was first registered.
MOT data updated
At 8 years, tested in 2025
What stands out
- In 2025, at 8 years old, Porsche Cayenne cars first used in 2017 failed 12.6% of MOTs (1,778 tests), 11.2 points below the 23.8% for all cars that age.
- From 2022 to 2025, as these cars went from 5 to 8 years old, the fail rate moved from 12.2% to 12.6%.
- Porsche Cayenne cars first used a year earlier, in 2016, failed 14.5% at the same age of 8 years (2,804 tests, in 2024).
- The most common fail item that is not a wear item, for the Porsche Cayenne at 8 years, is coil spring broken, at 2.3 per 100 MOTs (all cars: 2.1).
MOT fail rate by test year
| Test year | Age | MOT fail rate | Tests (n) | All cars | Difference |
|---|---|---|---|---|---|
| 2022 | 5 years | 12.2% | 1,840 | 15.3% | −3.1 pts |
| 2023 | 6 years | 13.0% | 1,833 | 17.8% | −4.8 pts |
| 2024 | 7 years | 12.7% | 1,845 | 20.6% | −8.0 pts |
| 2025 | 8 years | 12.6% | 1,778 | 23.8% | −11.2 pts |
Most common faults at 8 years
These figures cover all Porsche Cayenne MOTs at 8 years: cars first used 2014 to 2017, tested 2022 to 2025 (n=8,938). The list uses every first-use year so it has enough tests. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.
MOT fail items
| Fail item | Per 100 MOTs | All cars |
|---|---|---|
| Coil spring broken | 2.3 | 2.1 |
| Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords Wear | 1.5 | 1.3 |
| Wipers not clearing screen Wear | 1.2 | 1.7 |
| Tyre tread below 1.6 mm Wear | 1.2 | 2.3 |
| Tyre with cords exposed Wear | 1.1 | 1.2 |
| Engine warning lamp at the petrol emissions check: not working or showing a fault | 0.9 | 0.7 |
| Engine warning lamp at the diesel emissions check: not working or showing a fault | 0.9 | 0.6 |
| Dipped headlight not working Wear | 0.8 | 1.2 |
| Headlight aimed too high Wear | 0.7 | 0.7 |
| Tyre condition: has a bulge, caused by separation or partial failure of its structure Wear | 0.7 | 0.5 |
Per 100 of the MOTs above (n=8,938). A test with two items counts once for each.
Advisories
| Advisory | Per 100 MOTs | All cars |
|---|---|---|
| Tyre tread close to the legal limit or worn on the edge Wear | 12.3 | 15.7 |
| Brake pads wearing thin Wear | 10.7 | 8.6 |
| Tyre condition: slightly damaged/cracking or perishing Wear | 3.0 | 8.6 |
| Tyre condition: has a cut but not deep enough to reach the ply or cords Wear | 2.7 | 1.4 |
| Brake discs: worn, pitted or scored, but not seriously weakened | 2.6 | 8.6 |
| Non-component advisories: Child Seat fitted not allowing full inspection of adult belt | 2.5 | 2.3 |
| Brake discs: worn, but not excessively | 2.3 | 2.7 |
| Non-component advisories: Nail in tyre | 2.3 | 1.9 |
| Windscreen: damaged but not adversely affecting driver's view | 2.1 | 2.1 |
| Tyre tread close to the legal limit, under the 1.0 mm rule Wear | 2.0 | 2.1 |
Per 100 of the MOTs above (n=8,938). A test with two items counts once for each.
Fuel type at 8 years
These figures cover all Porsche Cayenne MOTs at 8 years: cars first used 2014 to 2017, tested 2022 to 2025 (n=8,938). Each fuel is set against all cars of the same fuel and age. Fuels with fewer than 1,000 tests are not shown.
| Fuel | Share of tests | MOT fail rate | Tests (n) | All cars, same fuel | Median mileage |
|---|---|---|---|---|---|
| Diesel | 75.6% | 13.7% | 6,758 | 25.1% | 70,762 miles |
| Hybrid | 12.9% | 15.3% | 1,156 | 17.2% | 70,605 miles |
| Petrol | 11.4% | 10.8% | 1,023 | 22.8% | 57,762 miles |
Fail rate by mileage at 8 years
These figures cover all Porsche Cayenne MOTs at 8 years: cars first used 2014 to 2017, tested 2022 to 2025 (n=8,938). At 8 years, Porsche Cayenne cars at 90,000 to 120,000 miles failed more often (17.3%, n=1,469) than those at 30,000 to 60,000 miles (12.1%, n=2,713). Bands with fewer than 1,000 tests are not shown.
| Mileage at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|
| 30,000 to 60,000 miles | 12.1% | 2,713 | 21.0% |
| 60,000 to 90,000 miles | 13.8% | 4,013 | 26.6% |
| 90,000 to 120,000 miles | 17.3% | 1,469 | 30.2% |
Car tax rules for a 2017 car
- Cars first registered from 1 March 2001 to 31 March 2017 are taxed by CO2 emissions band, from band A (the lowest emissions) to band M. The band is set by the CO2 figure on the V5C logbook.
- Cars first registered from 1 April 2017 pay a first-year rate set by CO2 emissions, then the standard rate each year. A petrol, diesel or hybrid car with a list price over £40,000 also pays the expensive car supplement for five years, from the second tax payment.
- A car first used in 2017 can fall under either rule, so the registration date on the logbook decides.
These are the rules, not the amount for a specific car. Car tax check
ULEZ and clean air zones
- Petrol cars first registered from 2006 usually meet Euro 4, the petrol standard for the London ULEZ, so they usually do not pay the daily charge.
- Diesel cars first registered from September 2015 usually meet Euro 6, the diesel standard for the London ULEZ, so they usually do not pay the daily charge.
- Hybrids follow the Euro standard of their petrol or diesel engine.
- The clean air zones in Birmingham and Bristol use the same Euro 4 petrol and Euro 6 diesel standards. The low emission zones in Scotland use them too, but enforce them with fines, not a daily charge.
The Euro standard of the car decides, not the year alone. ULEZ checker
Other years of the Porsche Cayenne
Other Porsche models first used in 2017
| Model | Age at test | MOT fail rate | Tests (n) | All cars |
|---|---|---|---|---|
| Porsche Macan (2017) | 8 years in 2025 | 9.6% | 5,435 | 23.8% |
| Porsche 911 (2017) | 8 years in 2025 | 6.5% | 1,903 | 23.8% |
More on the Porsche Cayenne
Found one you might buy? Vet the specific car.
These figures describe 2017 Porsche Cayenne cars as a group, not any one car. The VetTheCar Buying Report looks at the car you are buying: its MOT history, what similar cars did next, and what to ask the seller.
Source
Contains public sector information licensed under the Open Government Licence v3.0. Source: DVSA anonymised MOT test data, class 4 normal MOT tests, 2022 to 2025. MOT data updated 28 September 2026.
Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources
Car tax and clean air zone rules are summarised from GOV.UK and Transport for London guidance. They are general rules and are not drawn from the MOT data.