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.
This electronic engine immobiliser locks the engine management system a few minutes after the ignition is switched off and prevents starting of the engine by anyone who does not have the key.

In the event of a malfunction, you are informed by lighting of this warning lamp, an audible signal and a message on the multifunction screen.
In this case, your vehicle does not start; contact a CITROËN dealer as soon as possible.
See also:
Overview
With attractive, sculpted lines; impressive build quality; and an array of
original upmarket features and functions, the new Citroën C4 is a perfect
balance of confidence-inspiring styling an ...
Anti-tamper function
The system detects the putting out of
service of its components.
The alarm is triggered if anyone tries
to put the wires of the siren, the central
control or the battery out of service.
Do not ma ...
Battery
Removal
If the vehicle is fitted with an alarm, this should be deactivated before disconnecting
the battery. Disconnect the battery leads, negative lead first.
Refitting
Ensure that the battery i ...






