See also:

Warning lamps
1. With the ignition on, the orange and red warning lamps come on. 2. With the engine running, these warning lamps should switch off. If a warning lamp remains on, refer to the page concerned. ...

Overview
With attractive, sculpted lines; impressive build quality; and an array of original upmarket features and functions, the new Citroën C4 is a perfect balance of confidence-inspiring styling an ...

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 ...