See also:

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 ...

Engine oil level indicator
System which informs the driver whether the engine oil level is correct or not. This information is indicated for a few seconds when the ignition is switched on, after the service information. ...

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 ...