See also:

Diesel particulate filter system
Complementary to the catalytic converter, this filter makes an active contribution to the preservation of air quality by the retaining of the unburnt pollutant particles. Black exhaust fumes are t ...

Interior features
Scented air freshener The scented air freshener diffuses the selected fragrance throughout the passenger compartment from its location in the ventilation system. Automatic air conditioning Aft ...

Comfort & convenient technology
The new Citroën C4 is designed for business-class travel with intuitive, intelligent technology enabling owners to tailor the new C4's environment and ambience to their own preferences. For e ...