Citroën C4 (Mk2)
The second C4 is a comfortable and underrated family hatch, but it sits in the era where PSA powertrains and semi-automated gearboxes need careful selection. The best buys are straightforward manuals with honest histories; the worst are neglected THP petrols or clumsy ETG diesels.
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Common Faults & Reliability
These are the most common documented problems for the Citroën C4 (Mk2), sorted by their typical impact and frequency.
1.2 PureTech "Wet Belt" Degradation
high severityLater models with the 1.2 PureTech engine are subject to wet-belt degradation. Debris can block the oil pickup, leading to vacuum pump failure and a loss of braking assistance (Recall R/2020/331).
1.6 THP timing-chain stretch and carbon build-up
high severityThe turbo petrol shares the usual Prince-engine faults: cold-start chain rattle, cam timing issues and carboned-up intake valves that can make a tidy C4 expensive very quickly.
EGS / ETG gearbox hesitation and clutch wear
medium severityThe automated manual gearbox is slow by design, but excessive jerking, slipping or failure to select gears usually means actuator or clutch trouble rather than just old-school calibration.
Browse by Production Year
Select a specific year to view detailed registration directory lookup and annual MOT history reports for the Citroën C4 (Mk2).