KNOWN FAULTS · DS

DS DS 3 1.6 THP common problems.

2010–2019 · Petrol

Sources are not verified in real time and no entry confirms that your car is affected.

2 known faults with sources

1.6 THP chain and tensionerValve timing

Engine / equipment: 1.6 THP / VTi (EP6, PSA-BMW “Prince” engine): Peugeot 207/208/308/3008/5008/508/RCZ, Citroën C4/C5/C4 Picasso, DS 3/4/5
Period mentioned: Approx. 2007–2018
Symptoms: Metallic rattle for several seconds after a cold start; engine light for timing deviation.
Possible cause described: The chain stretches and the tensioner is soft. Later units have a revised chain and tensioner, which reduce but do not eliminate the fault.
Check for the garage: Listen to a cold start and check whether the chain was replaced with the revised parts.
Cost cited in the source: Approx. €800–1,500 (converted from dollars)A rough figure from the original database, not an up-to-date quote.

Applies if: Only if fitted with the automatic gearbox described in the record.

AL4 / DP0 automatic gearbox pressure regulationAutomatic gearbox

Engine / equipment: PSA/Renault AL4 (DP0) four-speed automatic in Peugeot 206, 207, 307, 308, 406 and 407, Citroën C3, C4, C5, Xsara and Xsara Picasso, and DS3
Period mentioned: Approx. 2000–2015
Symptoms: The “Sport” and “Snow” lights flash together or “Gearbox fault” appears; very harsh shifts before the gearbox goes into limp mode in 3rd (only 3rd and reverse). It often happens when cold or after a few minutes' driving and clears after restarting the engine.
Possible cause described: The control unit sees a difference between calculated and actual pressure. The most cited cause is the pressure regulation solenoid (EPDE), though internal leaks or the pressure sensor are also possible. With badly degraded fluid, the fluid wear counter also triggers limp mode. Some owners replace the solenoid without fixing it.
Check for the garage: Read the codes with PSA-compatible equipment (Diagbox/Lexia) and log line pressure while driving, especially when cold. Check fluid level and condition and, if changed, use the specified fluid and reset the wear counter. Also check the lever position switch.
Cost cited in the source: No verifiable estimate in the sources; the solenoid is a replacement part and, according to a forum, it can be changed without removing the gearbox.A rough figure from the original database, not an up-to-date quote.