2021 Porsche Cayenne · 1,394 MOT tests
2021 Porsche Cayenne reliability
2021 Porsche Cayennes fail 4.6% of first MOT tests, 61% fewer MOT fails than the average car its age and mileage, ranking 2 of 19 Cayenne years (1,394 DVSA tests, 2022 to 2024).
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- first-time fail rate (all Porsche Cayennes: 13.8%)
- 4.6%
- first-time fail rate (all Porsche Cayennes: 13.8%)
- fails than cars of the same age and mileage
- 61% fewer
- fails than cars of the same age and mileage
- typical miles at its MOT, aged about 3
- 26,913
- typical miles at its MOT, aged about 3
- MOT tests, 2022 to 2024
- 1,394
- MOT tests, 2022 to 2024
Year on year
2021 against the years either side
- 2020 cars: 63% fewer MOT fails than the average car its age (the 2021 car does worse)
- Strong point: tyres, 24% fewer fails than comparable cars.
- Plates: a 2021 car carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
Common problems
What fails on a 2021 Porsche Cayenne
Fail rate by area
- Tyres3.3%
- Windscreen, wipers and mirrors0.8%
- Number plates and VIN0.7%
- Wheels0.1%
- Suspension0.1%
- Brakes0.1%
- Lights and electrics0.1%
Average for cars of the same age and mileage
Top failures
Tyre cut reaching ply or cords 0.79%
A cut reaching the ply or cords weakens the tyre and can cause a burst, so it must be replaced.
Tyre bulge from structural failure 0.5%
A bulge means the tyre's structure has failed and it could burst suddenly, so it must be replaced at once.
Tyre tread below 1.6mm 0.43%
Tread below 1.6mm is illegal and reduces grip in wet conditions, so the tyre must be replaced.
Number plate does not meet standards 0.22%
The plate does not meet legal specifications, so it must be replaced with a compliant one before the car is driven.
Wiper blade not clearing windscreen 0.14%
Wipers that do not clear the windscreen reduce visibility in rain, which is a safety risk, so replace them.
Size/type: of different sizes are fitted on the same axle. 0.07%
Common advisories
Tyre worn close to legal limit (4.59%) · Tyre has a shallow cut (1.29%) · Tyre slightly damaged or cracking (1.15%) · Nail in tyre, monitor (1%) · Brake pads wearing thin (1%) · Child seat limits belt inspection (0.93%)
Other years
Every Porsche Cayenne year
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Source: DVSA anonymised MOT results, 2022 to 2024, class 4 normal tests.
Is a 2021 Porsche Cayenne reliable?
2021 Porsche Cayennes fail 4.6% of first MOT tests, 61% fewer MOT fails than the average car its age and mileage, ranking 2 of 19 Cayenne years (1,394 DVSA tests, 2022 to 2024).
What fails on a 2021 Porsche Cayenne MOT?
Most often tyre cut reaching ply or cords (0.79% of tests), tyre bulge from structural failure (0.5% of tests), tyre tread below 1.6mm (0.43% of tests).
How many miles should a 2021 Porsche Cayenne have done?
At its MOT aged about 3, a typical 2021 Porsche Cayenne shows 26,913 miles. Much higher or lower is worth asking about.
What plate is a 2021 car?
A car first registered in 2021 carries a 70 plate (January–February 2021), or a 21 plate (March–August 2021), or a 71 plate (September–December 2021).
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