2011 Citroën C6 problems
Outside the engine, 4 documented faults affect 2011 cars, such as jerking and hydraulic block faults in the Citroën C6 six-speed automatic gearbox.

2011 Citroën C6 score: acceptable reliability
Calculated using only 4 documented faults and their sources: the most serious and frequent faults weigh more. How it is calculated
- EngineNot analysed
- Gearbox7.91 fault
- Suspension8.11 fault and ITV (technical inspection)
- Brakes8.71 fault and ITV (technical inspection)
- Tyres and wheels10.0No documented faults
- Steering8.4Technical inspection (ITV) only: 0.6 times the defects normal for its age
- Electrical system8.61 fault
- Headlights and lights7.3Technical inspection (ITV) only: 1.1 times the defects normal for its age
- Electronics and infotainment10.0No documented faults
- Climate control10.0No documented faults
- Bodywork and interior7.9Technical inspection (ITV) only: 0.8 times the defects normal for its age
- Airbags and safety10.0No documented faults
What changes compared with the 2010 Citroën C6
- Score: 6.5 → 7.0
- No longer sold: TDV6 / SDV6 and 2.2 HDi
- No longer affected by: crankshaft breakage and spinning main bearing shells (TDV6 / SDV6), broken oil pump housing and timing belt jumping on the 2.7 (TDV6 / SDV6), turbo faults, somewhat more frequent on the sequential twin-turbo versions (2.2 HDi) and piezo injector wear and failure (2.2 HDi) and 1 more
Faults outside the engine in the 2011 Citroën C6
- High severityFrequency: OccasionalGearbox and clutchJerking and hydraulic block faults in the Citroën C6 six-speed automatic gearboxAccording to fiches-auto.fr, 23 of 151 C6 owner reports cite six-speed automatic gearbox faults: jerking, hesitation when changing gear and locking in P; one case puts the hydraulic block at around €2,200.
- Medium severityFrequency: OccasionalSuspensionHydractive suspension faults on the Citroën C6: leaks, height sensors and spheresAccording to the fiches-auto.fr owner reports, 16 of 151 C6 owners cite Hydractive suspension problems: leaks, faulty height sensors, incorrect ride height and excessive firmness; repairs of around €350 to €1,090 depending on the case.
- Medium severityFrequency: OccasionalElectrical systemAlternator failure and battery problems on the Citroën C6According to fiches-auto.fr, 12 of 151 C6 owner reports cite alternator failures, with repairs of around €600 to €800, and another 6 talk about battery problems.
- Low severityFrequency: RareBrakesABS sensor failure on the Citroën C6According to fiches-auto.fr, 9 of 151 C6 owner reports cite ABS sensor failures, with repairs of around €400 per case.
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Frequently asked questions
Is the 2011 Citroën C6 reliable?
Outside the engine, 4 documented faults affect 2011 cars, such as jerking and hydraulic block faults in the Citroën C6 six-speed automatic gearbox.
Is the 2011 Citroën C6 better than the 2010?
Our score goes from 6.5 in 2010 to 7.0 in 2011. No longer affected by: crankshaft breakage and spinning main bearing shells (TDV6 / SDV6), broken oil pump housing and timing belt jumping on the 2.7 (TDV6 / SDV6) and turbo faults, somewhat more frequent on the sequential twin-turbo versions (2.2 HDi).
What is the best year for the Citroën C6?
According to our score, the best are 2012 and 2011 (7.0/10). The year with the worst score is 2005 (6.3/10). Each year's score counts only the engines sold that year and the faults that affect those cars.
What faults does the 2011 Citroën C6 have?
The most important ones documented for 2011 cars are: jerking and hydraulic block faults in the Citroën C6 six-speed automatic gearbox (gearbox and clutch, high severity), hydractive suspension faults on the Citroën C6: leaks, height sensors and spheres (suspension, medium severity), alternator failure and battery problems on the Citroën C6 (electrical system, medium severity) and aBS sensor failure on the Citroën C6 (brakes, low severity).
Own a 2011 Citroën C6? Tell us what faults you have had and at how many kilometres. Report your fault.