2021 Peugeot 508 MOT pass rate: 84.0% (1,542 tests)
Is the 2021 508 getting worse?
Pass rate of 2021-registered cars across recent test years:
| Test year | Pass rate | |
|---|---|---|
| 2024 | 83.0% -7.6 vs same-age |
|
| 2025 | 85.0% -5.2 vs same-age |
The raw rate normally falls as cars age. The “vs same-age” figure compares this cohort with all UK cars registered in the same year, so normal ageing is not mistaken for a bad model year.
What fails on a 2021 508
| # | System | Defects recorded | Share |
|---|---|---|---|
| 1 | Visibility | 150 | 34.6% |
| 2 | Tyres | 136 | 31.3% |
| 3 | Brakes | 89 | 20.5% |
| 4 | Lamps, reflectors and electrical equipment | 19 | 4.4% |
| 5 | Suspension | 16 | 3.7% |
| 6 | Noise, emissions and leaks | 8 | 1.8% |
All 508 years compared
| Registration year | Tests | Pass rate | Vs same-age | Median mileage |
|---|---|---|---|---|
| 2011 | 7,794 | 70.6% | +1.4 pts | 120,692 |
| 2012 | 10,743 | 70.4% | -0.8 pts | 117,731 |
| 2013 | 8,604 | 70.8% | -2.5 pts | 110,066 |
| 2014 | 4,202 | 74.5% | -1.3 pts | 95,539 |
| 2015 | 3,124 | 77.7% | -1.1 pts | 89,107 |
| 2016 | 2,761 | 79.0% | -2.3 pts | 76,358 |
| 2019 | 7,268 | 83.4% | -4.9 pts | 43,637 |
| 2020 | 3,140 | 83.1% | -6.8 pts | 43,566 |
| 2021 (this page) | 1,542 | 84.0% | -6.4 pts | 38,267 |
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FAQs
Is a 2021 Peugeot 508 reliable?
2021-registered examples passed 84.0% of their MOT tests (1,542 tests, 2023–2025), -6.4 points versus all UK cars registered in the same year. At roughly 5 years old with a median 38,267 miles, condition now varies car by car — always check the individual MOT history.
What mileage is too high for a 2021 508?
The median tested example shows 38,267 miles. Anything far beyond that isn't automatically bad — a motorway-mile car with consistent service records often beats a low-mileage school-run car — but price accordingly and scrutinise the mileage trail for gaps or drops.
Source: DVSA Anonymised MOT tests and results, 2023–2025 extracts (96 million Class 4 initial tests; retests excluded). Only vehicles old enough for a routine first MOT are included. Age-adjusted figures compare the model-year cohort with all vehicles of the same registration year tested in the same calendar year. Contains public sector information licensed under OGL v3.0.