2023 Peugeot 308: common problems and what to check
What gets flagged at MOT on 2023 Peugeot 308s, from 200 tests in 2025, plus known faults and what to look at before you buy one.
Small sample: only 200 of these were MOT tested in 2025, so treat the percentages as rough. The known faults below don't depend on it.
What gets flagged at MOT
The share of 2023 Peugeot 308 MOT tests where testers flagged each area, as a fail or an advisory. Rough prices are typical independent-garage costs.
- Tyres12% of testsRough price £70–£150
At the viewing: Check the tread on all four tyres, including the inside edges, and look for cracks or bulges.
- Brakes7% of testsRough price £150–£350
At the viewing: Look for a lip on the disc edges and feel for judder or pulling when braking firmly from about 40mph.
- Lights and electrics6% of testsRough price £10–£80
At the viewing: Ask a friend to check every light, including brake lights and indicators, while you operate them.
- Wipers, windscreen and mirrors4% of testsRough price £15–£250
At the viewing: Check for chips in the driver's view, and test the wipers and washers.
- Seats and seatbelts1% of testsRough price £80–£250
At the viewing: Pull each seatbelt sharply. It should lock, and retract cleanly.
- Exhaust and emissions1% of testsRough price £100–£1,200
At the viewing: Look for black soot in the tailpipe, listen for blowing from the exhaust and check for engine or DPF warning lights.
Known faults
Reported by owners, mechanics and buying guides for this model and age. Check which engine the car has, as some apply to one engine only.
- Timing belt that runs in oil (PureTech petrol)1.0 and 1.2 PureTech petrol
The 1.0 and 1.2 PureTech petrol engines use a timing belt that runs in the engine oil (a “wet belt”). It can break down early and shed rubber that blocks the oil supply, which can wreck the engine. Some also burn too much oil. Stellantis now covers earlier engines for belt and oil-burning problems for up to 10 years or 112,000 miles, as long as the car has been serviced on schedule.
At the viewing: Ask for a full service history showing the right oil, and when the belt was last checked or changed. Check the oil level on the dipstick, and that no oil-pressure or engine warning light stays on.
Source: Parkers: Stellantis wet belt compensation, and the cars at risk, Stellantis: compensation policy for earlier PureTech 1.0 and 1.2 engines (7 May 2025)
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Other years
| Year | MOT tests | Most flagged |
|---|---|---|
| 2022 | 3,854 | Tyres 28% |
| 2021 | 1,637 | Tyres 23% |
| 2020 | 3,814 | Tyres 28% |
| 2019 | 7,145 | Tyres 31% |
| 2018 | 8,421 | Tyres 31% |
| 2017 | 9,083 | Tyres 33% |
| 2016 | 14,317 | Tyres 33% |
| 2015 | 13,636 | Tyres 35% |
| 2014 | 11,636 | Tyres 37% |
| 2013 | 9,743 | Suspension 38% |
| 2012 | 9,174 | Suspension 39% |
| 2011 | 8,384 | Suspension 42% |
| 2010 | 10,204 | Suspension 41% |
| 2009 | 8,785 | Suspension 45% |
| 2008 | 5,807 | Suspension 47% |
| 2007 | 588 | Suspension 54% |
Where this comes from: the DVSA's anonymised results for every MOT test in Great Britain in 2025, counting tests of 2023 Peugeot 308s registered in 2023. "Flagged" includes advisories, so it isn't the same as a fail rate. How we score