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Peugeot Trouble Codes and Known Issues
Peugeot (Stellantis, formerly PSA Group) uses TU and EC gasoline engines, the 1.6 THP turbo (developed with BMW) and HDi diesels. The AL4 automatic transmission, the same unit as Renault's DP0, was the most common for years in the 206, 207 and 307.
Most searched models: 206, 207, 208, 2008, 301, 308, 3008, 408, 5008 and Partner.
Common problems on Peugeot vehicles
- Timing chain, tensioner and carbon buildup on the 1.6 THP.
- AL4 automatic transmission: pressure solenoids and harsh shifts.
- EGR valve and fuel pressure on HDi diesels.
- Plastic thermostat housing.
- Ignition coils on 1.6 16v engines.
Tips for diagnosing a Peugeot
- On the 1.6 THP, change the oil at the recommended interval and check the level between changes: it burns oil easily.
- Many Peugeots need the factory scan tool (or a compatible one) to access every module.
Do you have several codes at once? Use the free multi-code diagnosis for Peugeot: it sorts the codes by priority and shows these make-specific notes. Below are the codes with documented quirks on Peugeot vehicles.
Make notes are a guide based on well-known common failures. Always confirm with the manufacturer's documentation for your engine and model year.
Codes with notes for Peugeot
11 codes