About the Citroën C6
The Citroën C6 was launched in 2005 as the French manufacturer's flagship model, reviving the large luxury saloon tradition. Available exclusively as a four-door saloon, it featured Citroën's signature hydropneumatic suspension system, delivering exceptional ride comfort. UK models were offered with 2.7-litre V6 HDi diesel and 3.0-litre V6 petrol engines, paired with automatic transmissions.
Standard equipment was generous, including leather upholstery, navigation, automatic climate control, and advanced safety systems. The concave rear window and sleek profile made it instantly recognizable. Production ended in 2012, with relatively few examples reaching the UK market, contributing to its current rarity and collectability.
What Affects the Price of a Used Citroën C6
Mileage significantly impacts pricing, with lower-mileage examples commanding premium prices. The 2.7 HDi diesel variant is more common and generally more affordable than the rarer 3.0-litre petrol version. Model year affects value, with later cars (2009-2012) typically priced higher due to updates and lower mileage.
Condition of the hydropneumatic suspension is critical—cars with full service history demonstrating regular sphere replacement are worth considerably more. Specification level matters, particularly models with features like head-up display, lane departure warning, and full leather. Colour choice influences value, with metallic shades and lighter interiors proving more desirable than dark combinations.
Tips for Buying a Used Citroën C6
Insist on comprehensive service history, particularly evidence of hydraulic system maintenance including sphere replacement and LHM fluid changes. Test the suspension thoroughly—it should rise to full height within 15 seconds of starting, with no sagging overnight. Check all electrical systems, as repairs can be costly on a car with this level of equipment.
Budget for specialist maintenance, as many independent garages lack the diagnostic equipment for hydropneumatic systems. Inspect for oil leaks around the V6 engines and ensure the automatic gearbox shifts smoothly without hesitation. Join C6 owner forums to identify specialists and understand common issues before purchasing. Factor in running costs—the 2.7 HDi offers significantly better fuel economy than the petrol variant.