Exhaust & emissionsHigh
1.6 and 2.0 HDi diesel particulate filter blocking on short runs
- Typically appears
- 70,000+ miles
- What to inspect
- Check for a DPF warning light and confirm regen completes on a run
2011–2018 Peugeot 508 · common problems & known faults
A large saloon and estate aimed at company car drivers, so high mileage diesel examples need careful checks on emissions and electrical systems.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2011–2018 Peugeot 508 are 1.6 and 2.0 HDi diesel particulate filter blocking on short runs, Head-up display and multiplex electrical gremlins and Front suspension bush and strut wear from motorway miles. 1 of the documented issues are rated high severity · inspect these first. Full inspection points, onset mileage and what to check are listed below.
Reliability snapshot
Based on the documented faults on this page for the Peugeot 508.
7.0/ 10
- Critical
- 0
- High
- 1
- Medium
- 3
- Low
- 1
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
ElectricalMedium
Head-up display and multiplex electrical gremlins
- Typically appears
- Age-related
- What to inspect
- Check all dash warnings clear and test head-up display if fitted
SuspensionMedium
Front suspension bush and strut wear from motorway miles
- Typically appears
- 80,000+ miles
- What to inspect
- Listen for knocks over bumps and check for uneven tyre wear
TransmissionMedium
Automatic gearbox hesitation on higher mileage cars
- Typically appears
- 90,000+ miles
- What to inspect
- Drive through low speed gear changes and feel for hesitation or clunks
BodyworkLow
Boot lid and door seal water ingress causing damp carpets
- Typically appears
- Age-related
- What to inspect
- Check boot carpet and door sills for dampness or mould smell
Inspecting a Peugeot 508?
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Check this exact carFrequently asked questions
Is the 508 a sensible high-mileage buy?
Yes if it has full service history, as it was built for motorway durability.
What should I check most carefully?
DPF health on diesels that have spent their life on short journeys.
Are electrical faults common?
Some multiplex wiring gremlins occur with age, so test every switch and warning light.
Sources & further reading
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.