Citroën—C4, C4 Picasso, C5II, C5 (X7) & Dispatch vehicles
What are the defects?
The braking assistance circuit vacuum pump valve in very rare cases may have problems opening.
What are the hazards?
This may occasionally affect braking assistance.
What should consumers do?
Citroën will write to owners of affected vehicles.
Owners are advised to contact their authorised Citroën dealership to arrange for replacement of the vacuum pump valve.