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 ...

Putting the wheel back in place
Put the wheel back in its housing. Unscrew the yellow central bolt by a few turns then put it in place in the centre of the wheel. Tighten fully until the central bolt clicks to retain th ...

Interior quality
Quality and sophistication are evident throughout the new Citroën C4's cabin, with full attention paid to the flush assembly and feel of the materials used. The dashboard and fascia have been ...