Citroën C3 Aircross
Modern 1.5-litre diesel from the Stellantis era with SCR cat and DPF. Economical and clean, a good replacement for the 1.6 HDi. Belt-driven timing.
Economical crossover diesel
102 hp BlueHDi in the C3 Aircross — well suited for commuters, very economical in everyday use.
Engine Weaknesses 6
The DV5-100 was initially shipped with a 7 mm wide timing chain that stretches prematurely and can snap under short-trip use and fuel dilution of the oil. Stellantis recalled over 141,700 vehicles and upgraded to a stronger 8 mm chain.
Symptoms: Clattering rattle on cold start (chain tensioner), sudden engine stall, engine warning light, no restart
The Bosch high-pressure fuel pump on the DV5-100 can seize due to a design fault. Metal particles then contaminate the entire fuel circuit; injectors and fuel tank must be completely replaced. Damage often occurs below 50,000 km.
Symptoms: Hesitation and stumbling under load, engine misfires, no or difficult restart, engine warning light
The DV5-100 shares the PSA-wide AdBlue tank problem: the integrated level sensor fails and the tank cannot be repaired individually. In winter the urea solution crystallises and additionally blocks pump and lines.
Symptoms: AdBlue warning message, countdown to starter lockout, implausible range display
During DPF regeneration, post-injection fuel is sprayed in; some passes the cylinder walls into the engine oil. With frequent short trips the oil dilutes heavily, the oil level appears to rise. Bearing and turbo damage may follow. Stellantis offers extended goodwill coverage of 10 years/240,000 km.
Symptoms: Significantly rising oil level (oil smells of diesel), frequent DPF regeneration cycles, knocking noises after long urban driving, increased oil consumption.
The DV5-100 regenerates every 40–70 km in heavy urban use, far more often than normal. This noticeably increases fuel consumption, and fuel dilution of the oil significantly accelerates wear of the timing chain and bearings.
Symptoms: Sharply elevated fuel consumption, rising oil level, frequent brief smoke from exhaust, DPF warning message
The PSA AdBlue pump weakness also affects the DV5: the pump PCB corrodes, urea crystallises in the system and blocks the injector or tank. P20EE or P20E8 is the most common fault code. Repair costs up to €2,000.
Symptoms: Exhaust aftertreatment warning light, countdown to engine lockout, abnormal ammonia smell from the exhaust, fault codes P20E8/P20EE, vehicle will not start after reaching the limit.
Vehicle Weaknesses 4
Axle springs and dampers show up to twelve times the average rejection rate at the first MOT on the C3 Aircross. This is the most striking weak point of the vehicle.
Brake disc wear is unusually high already at the first MOT. Frequent stop-start use or sporty driving makes the problem considerably worse.
All build years show above-average rates of misadjusted headlights and defective front and rear lights and indicators at the MOT. The fault rate for tail lights is three times higher than average.
Older C3 Aircross models show exhaust system rust that causes increasing MOT problems with age. Underfloor oil loss is also flagged by MOT testers more frequently.
