Practical  advice

Citroen C4 / Citroen C4 Owner's Manual / Practical  advice

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Good ventilation
To obtain the best from the system, we advise: ...

Reactivation
These systems are reactivated automatically each time the ignition is switched back on or from 30 mph (50 km/h). Press the "ESP OFF" button again to reactivate them manually. ...

RDS sytem
Using the RDS (radio data system) function on FM The majority of FM radio stations use the RDS system. The radio in your vehicle has this system. The RDS system enables these stations to transmit n ...