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MOT fail rates

Porsche Cayenne MOT fail rate by age

How often the Porsche Cayenne fails its MOT at each age, compared with all cars of the same age, and what it fails on. From 118,942 DVSA MOT tests taken 2022 to 2025.

MOT data updated

At 6 years, the most tested age

MOT fail rate at age 6 (n=9,863)11.3%
All cars at 6 years (n=10,382,720)17.8%
Median mileage at test49,897
All cars, median mileage44,951

37 of 340 model groups with enough tests fail less often at 6 years.

What stands out

  • At 3 years the Porsche Cayenne fails 6.4% of MOTs (9,665 tests), 5.6 points below the 12.1% for all cars that age. At 21 years it fails 27.8% (1,473 tests), 14.3 points below the 42.1% average.
  • The gap is widest at 13 years: 20.4 points below all cars.
  • Its most common structural or mechanical fail item at 6 years: Coil spring broken, at 1.3 per 100 MOTs.

MOT fail rate by age

3 years 21 years 47.6%

Solid line: this model. Dashed line: all cars at the same age.

Porsche Cayenne: share of MOT tests that failed, by age, against all cars. Ages with fewer than 1,000 tests are not shown.
AgeMOT fail rateTests (n)All carsDifferenceMedian mileage
3 years6.4%9,66512.1%−5.6 pts23,957 miles
4 years6.8%9,18813.4%−6.6 pts31,357 miles
5 years9.3%9,28915.3%−6.0 pts40,304 miles
6 years11.3%9,86317.8%−6.5 pts49,897 miles
7 years12.8%8,94820.6%−7.8 pts60,298 miles
8 years13.6%8,93823.8%−10.2 pts69,234 miles
9 years14.6%9,33027.1%−12.5 pts77,323 miles
10 years16.0%8,48030.3%−14.3 pts85,392 miles
11 years17.1%7,33633.3%−16.2 pts93,216 miles
12 years17.6%6,38736.0%−18.4 pts99,705 miles
13 years17.9%5,00438.3%−20.4 pts105,866 miles
14 years21.1%3,61840.3%−19.1 pts108,945 miles
15 years21.8%3,10541.6%−19.8 pts110,036 miles
16 years25.7%3,15642.6%−16.9 pts110,542 miles
17 years26.9%3,81343.1%−16.2 pts114,085 miles
18 years27.0%4,40043.3%−16.3 pts118,153 miles
19 years27.3%4,02843.2%−15.9 pts120,391 miles
20 years28.4%2,92142.8%−14.4 pts121,940 miles
21 years27.8%1,47342.1%−14.3 pts124,409 miles

Most common fail items at 6 years

Split into structural or mechanical items and wear items. Wear items (tyres, brake pads, wipers, bulbs) say more about upkeep than about the design.

Structural and mechanical

Fail itemPer 100 MOTs
Coil spring broken Major1.3
Malfunction indicator lamp: inoperative or indicates a malfunction Major0.4

Out of 9,863 MOTs. A test with two faults counts twice.

Wear and upkeep

Fail itemPer 100 MOTs
Tyre condition: has a cut in excess of the requirements deep enough to reach the ply or cords Major2.2
Tyre with cords exposed Dangerous1.4
Tyre tread below 1.6 mm Dangerous1.3
Wipers not clearing screen Major1.1
Registration plates: does not conform to the specified requirements Major0.9
Brake pads under 1.5 mm Dangerous0.9
Tyre condition: has a bulge, caused by separation or partial failure of its structure Dangerous0.8
Headlight aimed too high Major0.6

Out of 9,863 MOTs. A test with two faults counts twice.

Other models at 6 years

ModelMOT fail rateTests (n)All cars
Porsche Macan7.8%18,32117.8%
Porsche 9115.4%8,22817.8%
Porsche Boxster6.0%4,28317.8%

MOT fail rate by first-use year

Each year has its own page: the fail rate for cars first used that year at each MOT from 2022 to 2025 with at least 1,000 tests, the most common faults at that age, and the car tax and ULEZ rules for that year.

First-use year data updated .

Latest MOT age with at least 1,000 tests for each first-use year.
First usedAge at testMOT fail rateTests (n)All cars
200420 years in 202429.7%1,11242.8%
200520 years in 202527.9%1,19242.8%
201114 years in 202519.5%1,20440.3%
201213 years in 202516.2%1,92238.3%
201312 years in 202516.5%2,16436.0%
201411 years in 202515.2%1,86433.3%
201510 years in 202514.6%2,34230.3%
20169 years in 202514.4%2,79827.1%
20178 years in 202512.6%1,77823.8%
20187 years in 202511.2%1,84020.6%
20196 years in 20258.6%3,23417.8%
20205 years in 20258.8%2,36615.3%
20214 years in 20256.3%1,58313.4%

More on the Porsche Cayenne

Read this with care. A fail rate is not a measure of build quality. How far cars are driven, how they are used and how well owners maintain them all change it, and wear items such as tyres and brake pads are common fails. Compare a model only with cars of the same age. Methodology and limits.

Looking at one Porsche Cayenne?

These are figures for the model, not for one car. The VetTheCar Buying Report looks at a single car: its MOT tests, defects, advisories and mileage readings.

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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 22 September 2026.

Not affiliated with or endorsed by DVSA. How we calculate these figures · Data sources