EngineCritical
1.2 PureTech wet belt failure on petrol models
- Typically appears
- 60,000+ miles or 6 years
- What to inspect
- Check belt history and oil condition
2014–2025 Peugeot 308 · common problems & known faults
A mainstream family hatch and estate. Diesel versions dominate used stock, so emissions hardware leads the check.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed August 2026
Quick answer
The most commonly reported faults on the 2014–2025 Peugeot 308 are 1.2 PureTech wet belt failure on petrol models, BlueHDi DPF and AdBlue injector faults and Infotainment, air conditioning control and sensor faults. Of the documented issues, 1 rated critical and 1 rated high · these are the ones worth inspecting 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 308.
5.9/ 10
- Critical
- 1
- High
- 1
- Medium
- 2
- Low
- 0
Guidance only · reflects reported patterns, not a specific car's condition.
Known faults to check
ExhaustHigh
BlueHDi DPF and AdBlue injector faults
- Typically appears
- 70,000+ miles
- What to inspect
- Check AdBlue level warnings and forced regen history
ElectricalMedium
Infotainment, air conditioning control and sensor faults
- Typically appears
- Age-related
- What to inspect
- Test climate, screen and all sensors
TransmissionMedium
EAT6 and EAT8 automatic hesitation
- Typically appears
- 70,000+ miles
- What to inspect
- Drive from cold in slow traffic
Inspecting a Peugeot 308?
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Check this exact carFrequently asked questions
Is the SW estate worth stocking?
Yes. It is one of the biggest boots in the class and sells well to families and taxi buyers.
What is the top risk on petrol cars?
The wet belt, without exception. Everything else is secondary.
Do AdBlue faults stop cars?
Yes. A failed AdBlue system will eventually prevent the car starting, so never ignore the warning.
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.