Peugeot 508 Mk2 (2019-present) reliability
Peugeot 508 Mk2 built around 2020: more fails still not passed 3 days later
Peugeot 508 Mk2 models built around 2020 fail an MOT and still haven’t passed 3 days later more often than similar cars the same age. Look closely at the tyres on any car you view.
Looking at a Peugeot 508 Mk2?
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Key figure
3.5% of MOT tests on Peugeot 508 Mk2 models built around 2020 failed and still hadn’t passed 3 days later. For similar cars the same age, it was 1.7%.
Most common issue
The most common MOT issue on Peugeot 508 Mk2 models built around 2020 involves the tyres.
Based on 6,693 tests of 508 models registered 2019+.
About 1 in 10 diesel 508 cars registered in 2022 (9.9%) failed their first MOT.
Based on 132 first MOTs (DVSA MOT results, 2025).
About 1 in 30 508 Mk2 MOTs (3.5%) failed and still hadn't passed 3 days later. That's for cars built around 2020 (5 years old), all fuels combined.
Based on 2,517 tests (DVSA MOT results, 2025). A fail that passed a retest within 3 days, even the same day, isn't counted. Nor is a fail with no later MOT on record.
About 1 in 12 508 Mk2 MOTs (8%) found at least one dangerous defect. These are cars built around 2020 (5 years old).
Based on 2,517 tests (DVSA MOT results, 2025). Dangerous is the most serious grade an MOT gives: a direct risk to road safety.
Mk2 fail rate by age
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs. Highest fail rate at 5 years old.
How the 508 Mk2 compares
At each age below, see how the 508 Mk2 holds up against other cars the same age. The averages combine all fuel types.
Based on 83,292 tests across 9 Peugeot models, built around 2020 (5 years old).
Fail rate is the share of MOT tests that ended in a fail. Retests count as tests. How we count fail rates Build years are worked out from age, so they are approximate. Tests counted are 2025 MOTs.
What to check before viewing
The model's most common MOT issues, turned into things you can ask about or look for.
Independent inspection
High priorityHave an independent specialist inspect the car before you commit.
Brake pads
High priorityAsk when the pads were last replaced and check the warning-light history.
Brake discs
High priorityAsk for the date and mileage of the last disc replacement; visually check for a deep wear lip and rust pitting on each disc.
Tyres
Worth checkingCheck tread depth across the full width on all four; uneven wear suggests alignment or suspension issues.
Suspension bushes and joints
Worth checkingListen for knocks over speed bumps and ask about recent control-arm or anti-roll-bar work.
Vehicle-specific check
Worth checkingCheck the car’s number plate on MOT Wise to see its own MOT history and any recalls for its build years.
Other saloons to compare
Other saloons, with each one's figures taken at the same age as the 508 Mk2.
- 1
Volkswagen Passat
Same body type, tested at the same age
- Fail rate
- 11.1%
- Fail, no pass in 3 days
- 1.4%
- Dangerous
- 4.5%
- Still registered at 10 years
- 83.2%
Lower fail rate: 11.1%, against 17.2% for the Peugeot 508 Mk2, both built around 2020.
10 critical recall campaigns matching this model/build period.
6,717 MOT tests on cars built around 2020
- 2
Mercedes-Benz CLA
Same body type, tested at the same age
- Fail rate
- 13.9%
- Fail, no pass in 3 days
- 2.1%
- Dangerous
- 6.4%
- Still registered at 10 years
- 88.2%
Lower fail rate: 13.9%, against 17.2% for the Peugeot 508 Mk2, both built around 2020.
8 critical recall campaigns matching this model/build period.
8,369 MOT tests on cars built around 2020
- 3
Dacia Logan
Same body type, tested at the same age
- Fail rate
- 19%
- Fail, no pass in 3 days
- 1.9%
- Dangerous
- 4.9%
- Still registered at 10 years
- 85.5%
Fewer fails still not passed 3 days later: 1.9%, against 3.5% for the Peugeot 508 Mk2.
1,517 MOT tests on cars built around 2020
- Fail rate
- = the share of MOT tests that ended in a fail. Retests count as tests.
- Fail, no pass in 3 days
- = the share of MOT tests that failed and still hadn't passed 3 days later. A fail that passed a retest within 3 days, even the same day, isn't counted.
- Dangerous
- = the share of MOT tests where the tester marked a fault as dangerous. It is against the law to drive the car until it is fixed.
- Still registered at 10 years
- = the share of cars still registered (taxed or declared off the road) 10 years after they were first registered.
Recall context
28 recalls in all16 of the 28 508 Mk2 recalls cover cars built in these years.
- 3 Critical
- 13 more
Top concerns
- Peugeot 3008508 PHEV. Traction battery
- Peugeot 3008v2 508v2 traction battery
- Affected vehicles may experience HV battery overheating that may lead to a HV battery thermal runaway and in a worst cas
For the exact car, check GOV.UK's recall checker with the number plate.
How 508 Mk2 cars have aged
How 508 Mk2 cars have aged
How fail rates have changed as these cars got older. Each line follows cars first registered in about the same year across several years of MOT data. Not a prediction for any one car.
Some lines cover only a year or two, so read this as a rough guide.
Mk2 variants compared
508 Mk2 variants built around 2020
The fail rate for each 508 Mk2 variant, grouped by fuel. Each row counts fails per MOT test, the same way as the main fail rate chart.
Diesel
- 50818.3%1,648 tests
Petrol
- 50813.8%400 tests
Most common issues on Peugeot 508 models of this age
This list covers every Peugeot 508 built around 2020, whichever generation it is. We don't have a defect list for the Mk2 on its own.
Most common advisories and fails
In order of the share of MOT tests that recorded each one
- 123.4%Advisory
Tyre worn close to the legal limit or worn on the edge
- 212.2%Advisory
Brake pads wearing thin
- 310.2%Advisory
Brake disc worn, pitted or scored, but not seriously weakened
- 48.3%Advisory
Tyre slightly damaged, cracking or perishing
- 53.9%Advisory
Suspension arm pin or bush worn, but not moving too much
Based on 2,517 tests
Looking at a Peugeot 508 Mk2?
Enter its number plate to see its full MOT history, risk rating and running costs.
Frequently asked questions
Built around 2020 (5 years old), the Peugeot 508 Mk2 (2019-present) fails MOTs noticeably more often than typical for this age. This is based on 2,517 5-year-old MOT tests from DVSA data. Each retest counts as a test.