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Peugeot 508 reliability

B · Good

MOT pass rates and common problems from 143,516 MOT tests of cars first registered 2011–2021.

72.0%pass first time
+2.3 ptsvs typical car
Beats 62%of cars
143,516MOT tests

Verdict

The Peugeot 508 passes its MOT first time on 72.0% of tests, 2.3 points higher than a typical car of the same age and mileage (69.7%). That puts it ahead of 62% of cars on UK roads once age and mileage are taken into account.

By year of first registration, the 2011 508 does best (beats 72% of cars) and the 2013 worst (beats 61%).

Of its engines, the 2.0 Diesel does best (beats 63%) and the 1.6 Diesel worst (beats 63%).

Better than average on suspension, emissions & leaks, steering.

Watch these weak spots

Number plate lights1.5×as often as a typical car
Indicator side repeaters1.8×as often as a typical car

MOT pass rate by age

First-time pass rate at each MOT by the car’s age in years.

50%60%70%80%90%345678910111213141582%80%73%71%67%64%63%
Peugeot 508Typical car, same age & mileage

Best and worst years

By year of first registration, ranked against all cars on UK roads after adjusting for age and mileage. Green = better than half of cars.

2011
Beats 72%
2012
Beats 65%
2013
Beats 61%
2014
Beats 63%
2015
Beats 62%
2016
Beats 50%
2017
Beats 52%
2018
Beats 69%
2019
Beats 20%
2020
Beats 16%
2021
Beats 17%

Engines

All years, most common first. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

EngineYearsTestsPass rateRankGrade
2.0 Diesel2011–201971,44271.7%Beats 63%B
1.6 Diesel2011–201646,65069.5%Beats 63%B
1.5 Diesel2019–20207,82478.5%Beats 16%E
2.2 Diesel2011–20146,28775.5%Beats 87%A
1.6 Petrol2019–20193,67182.2%Beats 18%E
2.0 Diesel hybrid2012–20133,37569.7%Beats 64%B
1.6 Hybrid2020–20213,12581.6%Beats 21%D
1.2 Petrol2021–20211,14281.2%Beats 13%E

Where it fails

Each area compared with a typical car of the same age and mileage, in points of pass rate. Tap or hover an area to see what to check.

Exhaust: 2.0% of tests fail on emissions & leaks, against 2.7% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Suspension: 7.1% of tests fail on suspension, against 9.0% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Lights: 11.1% of tests fail on lights & electrics, against 12.5% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Tyres: 7.6% of tests fail on tyres, against 7.3% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Brakes: 6.1% of tests fail on brakes, against 6.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Lights: 11.1% of tests fail on lights & electrics, against 12.5% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+1.5 ptsTyres: 7.6% of tests fail on tyres, against 7.3% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres−0.3 ptsBrakes: 6.1% of tests fail on brakes, against 6.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes+0.7 ptsSuspension: 7.1% of tests fail on suspension, against 9.0% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+2.0 ptsExhaust: 2.0% of tests fail on emissions & leaks, against 2.7% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+0.7 ptsSuspension: 7.1% of tests fail on suspension, against 9.0% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Brakes: 6.1% of tests fail on brakes, against 6.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Tyres: 7.6% of tests fail on tyres, against 7.3% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Lights: 11.1% of tests fail on lights & electrics, against 12.5% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Exhaust: 2.0% of tests fail on emissions & leaks, against 2.7% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Lights: 11.1% of tests fail on lights & electrics, against 12.5% for a typical car of the same age and mileage. Walk round the car with every light on, including brake, fog and number plate lights.Lights+1.5 ptsTyres: 7.6% of tests fail on tyres, against 7.3% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.Tyres−0.3 ptsBrakes: 6.1% of tests fail on brakes, against 6.8% for a typical car of the same age and mileage. Brake firmly on the test drive: the car should stop straight with no pulsing or grinding.Brakes+0.7 ptsSuspension: 7.1% of tests fail on suspension, against 9.0% for a typical car of the same age and mileage. Listen for knocks over speed bumps and push each corner down: it should settle at once.Suspension+2.0 ptsExhaust: 2.0% of tests fail on emissions & leaks, against 2.7% for a typical car of the same age and mileage. Listen for a blowing exhaust at start-up and look underneath for oil or fluid leaks.Exhaust+0.7 pts
Better than typicalTypicalWorse than typical
Tyres: 7.6% of tests fail on tyres, against 7.3% for a typical car of the same age and mileage. Check the tread on every tyre, including the inner edge, and look for cuts or bulges.

Every MOT area

Share of tests failing on each area, against a typical car of the same age and mileage (black line).

Lights & electrics
11.1% vs 12.5%
Tyres
7.6% vs 7.3%
Suspension
7.1% vs 9.0%
Brakes
6.1% vs 6.8%
Visibility
4.3% vs 4.7%
Body & structure
2.3% vs 2.8%
Emissions & leaks
2.0% vs 2.7%
Steering
0.7% vs 1.9%
Wheels
0.5% vs 0.5%
Seat belts & airbags
0.5% vs 0.8%

Buying one or MOT due? Check these

  • Number plate lights 1.5× typical
    Walk around with the lights on: bulb failures are the easiest MOT fails to avoid.
  • Tyre tread depth
    Check every tyre, including the inner edge, has at least 3 mm of tread. Uneven wear can point to alignment or suspension problems.
  • Headlight aim
    Park facing a wall at night: both dipped beams should sit level and dip to the left.
  • Tyre damage & cracking
    Look for cuts, bulges and cracking on both sidewalls of every tyre.
  • Coil springs
    Look behind each wheel for a snapped coil (often the bottom one) and listen for clunks over bumps.
  • Brake pads
    Ask when the pads were last replaced and look for a brake-wear warning on the dash.

Pass rate by mileage

First-time pass rate by mileage at the test.

50%60%70%80%90%100%10k20k30k40k50k60k70k80k90k100k110k120k130k140k150k89%83%79%73%69%66%65%63%
Peugeot 508Typical car

Most common MOT failures

ItemThis carTypicalvs typical
Tyre tread depth4.0%3.2%1.2×
Headlight aim3.7%3.3%1.1×
Tyre damage & cracking3.6%3.8%0.9×
Coil springs3.5%2.7%1.3×
Brake pads3.1%2.5%1.2×
Number plate lights2.9%1.9%1.5×
Windscreen washers2.3%2.2%1.1×
Headlight bulbs & units2.1%2.2%1.0×
Windscreen wipers1.8%2.1%0.9×
Drive shaft (CV) joints1.6%1.3%1.2×

Specific defects found

Tester wording for the most frequent failure items, per 1,000 tests.

Defectper 1,000
Tyre tread depth not in accordance with the requirements39.7
The aim of a headlamp is not within limits laid down in the requirements37.0
A spring or spring component fractured or seriously weakened34.7
A brake lining or pad worn below 1.5mm29.8
A suspension pin, bush or joint excessively worn27.4
A rear registration plate lamp or light source missing or inoperative in the case of a single lamp or all lamps25.5
Windscreen washers not working or not providing sufficient fluid to clear the windscreen23.0
A headlamp or light source missing, inoperative or more than ½ not functioning in the case of LED19.0
Check another car

Pick a make and model to see its MOT pass rate, best and worst years and weak spots.

Every year and engine

Tap a year to see its engines. Grades compare each car with cars of the same age and mileage (A = best 20% of cars on UK roads, E = worst 20%), so an older or higher-mileage car can grade above one with a higher pass rate.

2021 Peugeot 5082 engines81.5% passE
EngineTestsPass rateRankGrade
1.2 Petrol1,14281.2%Beats 13%E
1.6 Hybrid1,00481.8%Beats 23%D
2020 Peugeot 5082 engines79.9% passE
EngineTestsPass rateRankGrade
1.5 Diesel2,90578.8%Beats 14%E
1.6 Hybrid2,12181.6%Beats 20%D
2019 Peugeot 5083 engines80.2% passD
EngineTestsPass rateRankGrade
1.5 Diesel4,91978.3%Beats 17%E
1.6 Petrol3,67182.2%Beats 18%E
2.0 Diesel3,28281.0%Beats 27%D
2018 Peugeot 5081 engine85.0% passB
EngineTestsPass rateRankGrade
2.0 Diesel1,62685.0%Beats 69%B
2017 Peugeot 5081 engine80.4% passC
EngineTestsPass rateRankGrade
2.0 Diesel2,26280.4%Beats 52%C
2016 Peugeot 5082 engines77.6% passC
EngineTestsPass rateRankGrade
2.0 Diesel4,50277.0%Beats 42%C
1.6 Diesel2,91178.7%Beats 60%B
2015 Peugeot 5082 engines77.0% passB
EngineTestsPass rateRankGrade
2.0 Diesel5,75676.6%Beats 59%C
1.6 Diesel3,05877.8%Beats 66%B
2014 Peugeot 5083 engines74.4% passB
EngineTestsPass rateRankGrade
2.0 Diesel6,67275.7%Beats 69%B
1.6 Diesel4,84372.0%Beats 53%C
2.2 Diesel1,34576.7%Beats 72%B
2013 Peugeot 5084 engines69.9% passB
EngineTestsPass rateRankGrade
2.0 Diesel14,46869.9%Beats 61%B
1.6 Diesel9,58168.8%Beats 59%C
2.0 Diesel hybrid2,20070.2%Beats 62%B
2.2 Diesel1,49676.1%Beats 84%A
2012 Peugeot 5084 engines67.9% passB
EngineTestsPass rateRankGrade
2.0 Diesel19,37467.6%Beats 64%B
1.6 Diesel13,95067.4%Beats 63%B
2.2 Diesel1,79874.5%Beats 89%A
2.0 Diesel hybrid1,17568.6%Beats 67%B
2011 Peugeot 5083 engines68.1% passB
EngineTestsPass rateRankGrade
2.0 Diesel13,50068.0%Beats 72%B
1.6 Diesel12,30767.3%Beats 69%B
2.2 Diesel1,64875.1%Beats 94%A

FAQ

What is the Peugeot 508 MOT pass rate?

72.0% of MOT tests on the Peugeot 508 were passed first time, based on 143,516 tests between 2018 and 2026 of cars first registered 2011–2021. A typical car of the same age and mileage passes 69.7% of the time.

Is the Peugeot 508 reliable?

On MOT results it rates B (good): it passes first time more often than a typical car of the same age and mileage and does better than 62% of cars on UK roads. MOT results cover safety and emissions items, not every kind of breakdown.

Which Peugeot 508 year is best?

Among years with enough data, the 2011 508 does best for its age and mileage: it beats 72% of cars on UK roads. The 2013 does worst: it beats 61%.

Which Peugeot 508 engine is best?

Across all years, the 2.0 Diesel does best: it beats 63% of cars on UK roads. The 1.6 Diesel does worst: it beats 63%.

What are the most common MOT failures on the Peugeot 508?

The most common failure items are tyre tread depth, headlight aim, tyre damage & cracking. Compared with similar cars, number plate lights comes up 1.5× as often.

How we calculate this. We use official MOT results for cars tested in Great Britain from 2018 to 2026. Each car is compared with typical cars of the same age and mileage, so old and new cars are judged fairly; “pts” are percentage points above or below them. Differences also reflect how cars are used and maintained, not only how they are built.