See also:

Changing a wheel
Access to the spare wheel Lift the boot floor. Dimension of the spare wheel If your spare wheel is of a different dimension to those on the vehicle (identified by a label), it is essential to u ...

Anti-theft protection
Electronic engine immobiliser The key contains an electronic chip which has a special code. When the ignition is switched on, this code must be recognised in order for starting to be possible. T ...

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 ...