Frequently-asked questions

Citroen C4 / Citroen C4 Owner's Manual / Audio / Frequently-asked questions

The table below provides answers to the questions that are asked the most frequently.

 

 

 

 

 

 

 

    See also:

    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 ...

    Recommendations for ventilation and air conditioning
    In order for these systems to be fully effective, follow the operation and maintenance guidelines below: To obtain an even air distribution, take care not to obstruct the exterior air intake ...

    Operating fault
    In the event of a fault with the brightness sensor, the lighting come on, this warning lamp is displayed on the instrument panel and/or a message appears on the multifunction screen, accompanied ...