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:
Units
Once the "Units" menu has been selected,
you can change the units of the
following parameters:
- temperature (°C or °F),
- fuel consumption (l/100 km, mpg or
km/l).
Once the fuel consu ...
The market
The new Citroën C4 is a desirable addition to the compact 5-door hatchback
segment - an important class in the UK - which includes competitor models such
as the Ford Focus, Vauxhall Astra and ...
Warning lamps
Lighting and signalling lamps
See "Visibility".
LH direction indicator
RH direction indicator
The direction indicator lamps all operate simultaneously when the hazard warning
is on ...






