KNOWN FAULTS · Citroën

Known faults for the Citroën C3 (II).

2009–2016 · Petrol / Diesel

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

5 known faults with sources

Engines: 1.0 / 1.2 PureTech (desde 2012) (Petrol)

Oil-bath timing belt degradationTiming / lubrication

Engine / equipment: 1.0 / 1.2 PureTech (EB2) in the Peugeot 208/2008/308/3008/5008, Citroën C3/C4/C5 Aircross, DS 3, Opel Corsa/Crossland/Grandland
Period mentioned: 2012 – approx. 2022
Symptoms: Oil pressure warning, hard brake pedal or reduced assistance, oil consumption, blue smoke, squeal at the front of the engine, turbo whistles or loses power.
Possible cause described: The timing belt runs in oil and degrades (especially with short trips and fuel dilution). Debris clogs the oil pump strainer, the brake vacuum pump filter, the turbo oil feed and the variable valve timing solenoids. Stellantis announced compensation for affected owners in 2025.
Check for the garage: Measure the belt through the oil filler opening with the manufacturer's tool. Confirm whether the vacuum pump campaign was done.
Cost cited in the source: Vacuum pump: €500–800; belt with oil system cleaning: considerably moreA rough figure from the original database, not an up-to-date quote.

Engines: 1.0 / 1.2 PureTech (desde 2012) (Petrol) · 1.4 / 1.6 VTi (Petrol) · 1.4 HDi (Diesel) · 1.6 HDi / e-HDi (Diesel) · 1.6 BlueHDi (Diesel)

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.

Engines: 1.4 / 1.6 VTi (Petrol)

1.4/1.6 VTi chain and ValvetronicTiming / Valvetronic

Engine / equipment: Naturally aspirated 1.4 and 1.6 VTi from the Prince family (EP3/EP6C), including the MINI One and Cooper 1.4/1.6 (N12/N16)
Period mentioned: 2006–2017
Symptoms: Chain rattle on cold starts, unstable idle, stalling and an engine light with variable valve timing codes (P1030, P1062, P101A, P1025).
Possible cause described: The chain stretches and the tensioner fails early, often before 100,000 km. A stretched chain throws the timing out and makes the Valvetronic learning fail, which gets mistaken for a Valvetronic fault.
Check for the garage: Listen to a cold start and check the timing and chain condition before replacing Valvetronic parts or repeating adaptations.
Cost cited in the source: Tensioner and chain: approx. €750–1,700 (converted from dollars)A rough figure from the original database, not an up-to-date quote.

Mileage cited in the database: up to 100,000 km. This is not a maintenance interval and does not predict a failure.

Engines: 1.6 HDi / e-HDi (Diesel)

Turbo oil starvation from injector carbonTurbo / injection

Engine / equipment: 1.6 HDi DV6 (Peugeot 207/308/3008/Partner, Citroën C3/C4/Berlingo; same engine as the Ford 1.6 TDCi)
Period mentioned: Approx. 2004–2015
Symptoms: Loud turbo whistle, power loss, blue or black smoke, oil that gets dirty very quickly. Before the failure, often a puffing or ticking from the cylinder head and an exhaust smell from an injector.
Possible cause described: The injector clamp bolts work loose, the gas leak forms carbon that gets into the oil and clogs the mesh filter in the banjo bolt feeding the turbo. The turbo is starved of oil. Replacing only the turbo does not fix it.
Check for the garage: Check injector bolt torque and carbon at their base, the turbo banjo bolt and the sump strainer.
Cost cited in the source: Turbo + full oil system cleaning: approx. €900–2,000 (estimate)A rough figure from the original database, not an up-to-date quote.

Engines: 1.6 BlueHDi (Diesel)

AdBlue system failure (start countdown)Exhaust and emissions (AdBlue)

Engine / equipment: 1.5 / 1.6 / 2.0 BlueHDi with AdBlue (Peugeot, Citroën, DS, Opel)
Period mentioned: Approx. 2014 onwards
Symptoms: Emission system fault message and a “starting impossible in X km” countdown, AdBlue/UREA warning and engine light.
Possible cause described: Failure of the AdBlue tank pump module (circuit board, pressure sensor or heater) or of the AdBlue injector. The engine does not stop while driving, but once the countdown reaches zero it will not restart.
Check for the garage: Diagnose with Diagbox or equivalent: AdBlue pressure, flow test and tank temperature.
Cost cited in the source: Complete module or tank: approx. €600–1,500 (estimate)A rough figure from the original database, not an up-to-date quote.