Changing the air filter on Citroën C6 - 2.2HDi 173

First, open the engine hood using the lever located to the left of the pedals when you open the driver's door.

Le filtre à air is located at the front of the engine, here surrounded in red.

4 screws hold the air filter cover, take your tournevis to unscrew them.

Info: you won't risk losing the screws, they stay in place once completely unscrewed.

Once the four screws are completely unscrewed (but still in place) lift the cover upwards to clear access to the air filter.

Remove the air filter completely by lifting it from the sides.

Clean the bottom of the air filter housing to remove any insects or other dirt.

Compare the old and le nouveau filtre à air

Place the new air filter in the same direction as the old one.

Reinstall the air filter cover as originally. The four holes must be aligned in order to successfully screw in the screw.

Tighten the four screws fully.