Peugeot 508 MOT Failure Rate & Common Faults
We analysed 18,679 MOT tests on the Peugeot 508 carried out in 2023. 30% failed at the first attempt, which is roughly in line with the 29% average across all cars in the same data. Put another way, about 7 in 10 508s passed first time.
Results cover cars first registered from 2011 to 2021. Compared with other cars of the same age, 2011 models did best (64% passed, +1.2 points against the average for 12-year-old cars), while 2020 models fared worst (80%, −7.7 points). Tested cars had covered 90,528 miles on average, against 73,145 across all cars.
The most common reason for failure was lights and electrics, found on 10.1% of tests (roughly in line with the 11.3% seen across all cars). The single most frequent fault was "fractured or broken", on 4.5% of tests.
- MOT tests analysed
- 18,679
- First-time pass rate
- 70%
- All cars: 71%
- Versus all cars
- −1.0 points
- Average mileage at test
- 90,528
- All cars: 73,145
Checking a particular 508?
See its own MOT history, advisories and mileage for free.
508 MOT pass rate by year
Older cars fail more often, so each year is compared with all cars of the same age. Bars above the dashed line did better than average for their age.
| First registered | Tests | Pass rate | All cars, same age | Difference | Avg mileage |
|---|---|---|---|---|---|
| 2021 | 72 | 88% | 91% | −3.3 points | 25,999 |
| 2020 | 1,594 | 80% | 88% | −7.7 points | 33,852 |
| 2019 | 2,483 | 79% | 86% | −7.2 points | 38,768 |
| 2018 | 396 | 82% | 84% | −1.9 points | 46,353 |
| 2017 | 476 | 77% | 82% | −4.6 points | 66,645 |
| 2016 | 962 | 77% | 79% | −1.3 points | 76,961 |
| 2015 | 1,105 | 76% | 75% | +0.5 points | 87,296 |
| 2014 | 1,492 | 71% | 72% | −0.9 points | 97,259 |
| 2013 | 3,112 | 66% | 68% | −2.7 points | 109,352 |
| 2012 | 3,999 | 64% | 66% | −1.2 points | 118,188 |
| 2011 | 2,982 | 64% | 63% | +1.2 points | 120,721 |
Why the Peugeot 508 fails its MOT
The share of tests with at least one failure in each area, compared with all cars.
| Failure area | 508 | All cars |
|---|---|---|
| Lights and electrics | 10.1% | 11.3% |
| Suspension | 8.6% | 8.9% |
| Tyres | 8.0% | 6.3% |
| Brakes | 6.1% | 6.8% |
| Visibility | 6.0% | 4.8% |
| Body and structure | 2.9% | 3.5% |
| Noise, emissions and leaks | 2.3% | 3.1% |
| Steering | 0.7% | 1.8% |
| Seatbelts and airbags | 0.5% | 1.0% |
| Road Wheels | 0.5% | 0.4% |
Top 10 specific failure reasons
- 1fractured or broken4.5%
- 2tread depth below requirements of 1.6mm4.0%
- 3less than 1.5 mm thick3.0%
- 4does not clear the windscreen effectively2.7%
- 5not working2.5%
- 6inoperative in the case of a single lamp or all lamps2.3%
- 7ball joint excessively worn2.1%
- 8constant velocity boot split or insecure, no longer prevents the ingress of dirt2.0%
- 9provides insufficient washer liquid2.0%
- 10projected beam image is obviously incorrect1.9%
Common 508 MOT advisories
Advisories don't cause a fail, but they show what's wearing out. On a used 508, check whether these have been dealt with. Read our guide to MOT advisories.
| Advisory | Area | Share of tests |
|---|---|---|
| tread depth below requirements of 1.6mm | Tyres | 19.6% |
| less than 1.5 mm thick | Brakes | 11.7% |
| in such a condition that it is seriously weakened | Brakes | 11.5% |
| ball joint excessively worn | Suspension | 6.6% |
| leaking excessively from engine | Noise, emissions and leaks | 5.0% |
| has a tear, caused by separation or partial failure of its structure | Tyres | 4.8% |
| pin or bush excessively worn | Suspension | 4.5% |
| significantly and obviously worn | Brakes | 3.0% |
| tread pattern not visible over the whole tread area when minimum depth required is 1.0mm | Tyres | 2.9% |
| incorrect colour | Lights and electrics | 2.3% |
Tips to help your 508 pass
Based on where 508s most often fail. For a full list, use our pre-MOT checklist.
Lights and electrics · 10.1% of 508 tests
Walk round every light
With a helper, check headlights on dipped and main beam, sidelights, brake lights, indicators, the rear fog light and the number plate lamp. Replace blown bulbs in pairs and make sure no lenses are cracked.
Brakes · 6.1% of 508 tests
Don't ignore brake warning signs
Grinding, squealing, a soft pedal or the car pulling to one side under braking are all worth investigating before the MOT. Check whether the last test noted worn pads or discs; if so, they may now be below the limit.
Compare with other models
Is the 508 ULEZ compliant? See the Peugeot 508 ULEZ check, or view all Peugeot models.
Other Peugeot models
Models with similar pass rates
About this data
Based on 18,679 first MOT tests of the Peugeot 508 carried out in 2023.
Source: DVSA anonymised MOT test data (contains public sector information licensed under the Open Government Licence v3.0). First attempts on cars only; “pass rate” means passing first time. Averages cover all 32,735,164 cars tested (71% passed), and years with under 50 tests are hidden.
Learn more about how our data works.
Frequently asked questions
Answers from 18,679 first MOT tests of the Peugeot 508.
What is the Peugeot 508 MOT failure rate?
In our data, 30% of 18,679 first MOT attempts on the Peugeot 508 ended in a fail, compared with 29% for all cars.
What is the most common reason a Peugeot 508 fails its MOT?
The most common failure areas were lights and electrics (10.1% of tests), suspension (8.6% of tests), tyres (8.0% of tests).
Which 508 year has the best MOT pass rate?
Allowing for age, 2011 cars performed best: 64% passed first time, +1.2 points against the average for 12-year-old cars. The weakest was 2020, at 80% (−7.7 points).
How many miles had a typical Peugeot 508 covered at its MOT?
The average was 90,528 miles, against 73,145 for all cars tested. 2021 cars averaged 25,999 miles and 2011 cars 120,721.
What is the most common MOT advisory on the Peugeot 508?
"tread depth below requirements of 1.6mm" was recorded on 19.6% of tests, in the tyres area. 8.0% of 508s failed in that area too.
How can I check a specific 508's MOT history?
Enter its registration in our free MOT check. Across the 18,679 508s in our data, first-time pass rates ranged from 64% to 88% by year, so one car's own record says more than the average.
Related guides
- MOT · 6 min readPre-MOT checklist: 20 things to check yourself before the testTwenty quick checks, grouped by area, that you can do on your driveway in under half an hour. No tools beyond a coin and a helper needed for most.Read the guide
- MOT · 6 min readThe most common reasons cars fail their MOT (and how to avoid them)Lights alone failed 11.3% of cars at their 2023 MOT, more than any other area. The common failure areas, ranked, and the driveway checks that prevent them.Read the guide
- MOT · 4 min readTyre tread depth and the MOT: the legal limit and how to check6.3% of cars failed their 2023 MOT on tyres. The 1.6mm legal limit, what testers look for beyond tread, and a one-minute check with a 20p coin.Read the guide
Check any 508's MOT history
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