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 ...

The market
The new Citroën C4 is a desirable addition to the compact 5-door hatchback segment - an important class in the UK - which includes competitor models such as the Ford Focus, Vauxhall Astra and ...

Trip distance recorder
System which measures a distance travelled during a day or other period since it was reset to zero by the driver. With the ignition on, press the button until zeros appear. ...