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 ...

Deactivation
In exceptional conditions (starting a vehicle which is bogged down, stuck in snow, on soft ground...), it may be advisable to deactivate the ASR and ESP systems, so that the wheels can move freel ...