See also:

Scented air freshener
System permitting the diffusion of a fragrance in the passenger compartment in accordance with your requirements, by means of the adjustment dial and the various fragrance cartridges available. ...

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. ...

Trims
The new Citroën C4 is available in three trim levels - VTR, VTR+ and Exclusive. The entry-level VTR comes generously equipped, including six airbags, ESP, Hill Start Assist, manual air cond ...