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MOT fail rates

Peugeot 508 MOT fail rate by age

How often the Peugeot 508 fails its MOT at each age, compared with all cars of the same age, and what it fails on. From 73,755 DVSA MOT tests taken 2022 to 2025.

MOT data updated

At 11 years, the most tested age

MOT fail rate at age 11 (n=11,607)33.8%
All cars at 11 years (n=8,087,514)33.3%
Median mileage at test110,600
All cars, median mileage81,778

167 of 298 model groups with enough tests fail less often at 11 years.

What stands out

  • At 3 years the Peugeot 508 fails 18.1% of MOTs (5,945 tests), 6.0 points above the 12.1% for all cars that age. At 14 years it fails 37.2% (2,262 tests), 3.1 points below the 40.3% average.
  • The gap is widest at 3 years: 6.0 points above all cars.
  • Its most common structural or mechanical fail item at 11 years: Coil spring broken, at 6 per 100 MOTs.

MOT fail rate by age

3 years 14 years 44.3%

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

Peugeot 508: 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 years18.1%5,94512.1%+6.0 pts28,783 miles
4 years19.4%5,80113.4%+6.0 pts38,075 miles
5 years17.1%4,92515.3%+1.7 pts46,374 miles
6 years20.4%4,32517.8%+2.6 pts54,248 miles
7 years21.9%3,01520.6%+1.2 pts67,897 miles
8 years24.9%4,07023.8%+1.1 pts78,613 miles
9 years28.9%6,69827.1%+1.7 pts93,175 miles
10 years32.3%9,92330.3%+2.0 pts103,647 miles
11 years33.8%11,60733.3%+0.5 pts110,600 miles
12 years35.7%9,32436.0%−0.3 pts116,526 miles
13 years35.9%5,86038.3%−2.4 pts121,791 miles
14 years37.2%2,26240.3%−3.1 pts125,307 miles

Most common fail items at 11 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 Major6
Driveshaft CV boot split Major2.7
Anti-roll bar link worn Major2.1

Out of 11,607 MOTs. A test with two faults counts twice.

Wear and upkeep

Fail itemPer 100 MOTs
Tyre tread below 1.6 mm Dangerous6.3
Registration plate lamp(s): inoperative in the case of a single lamp or all lamps Major3.6
Brake pads under 1.5 mm Dangerous3.5
Headlamp aim: projected beam image is obviously incorrect Major3.1
Tyre with cords exposed Dangerous2.9
Dipped headlight not working Major2.5
Washers: provides insufficient washer liquid Major2.2

Out of 11,607 MOTs. A test with two faults counts twice.

Other models at 11 years

ModelMOT fail rateTests (n)All cars
Peugeot 20838.4%75,88133.3%
Peugeot 10729.1%55,88833.3%
Peugeot 20744.0%44,37633.3%

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
201114 years in 202537.1%2,26040.3%
201213 years in 202536.4%3,22738.3%
201312 years in 202536.0%2,66636.0%
201411 years in 202531.2%1,32033.3%
20159 years in 202427.0%1,06927.1%
20196 years in 202520.9%2,45617.8%
20205 years in 202517.3%1,58215.3%
20214 years in 202517.1%1,23613.4%

More on the Peugeot 508

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 Peugeot 508?

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.

See an example report Browse the car tools

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