See also:

Brakes
Braking system Your vehicle’s most important safety feature, the braking system, is provided by brake discs (or discs and drums) and a dual hydraulic circuit. When the engine is running, power as ...

Anti-lock braking system and electronic brake force distribution
Linked systems which improve the stability and manoeuvrability of your vehicle when braking, in particular on poor or slippery surfaces. Activation The anti-lock braking system comes into operat ...

Efficient engineering
Citroën has utilised the latest industrial technologies, along with a 'part by part' focus on reducing the weight and number of components in new C4. For example, the laser welding on the roo ...