Leaderboard

I would check the handbook to see which fuse it could be but it may be a problem with the blower speed control resistor module - located front left footwell, behind the right plastic panel, behind the blower to the right of the coolant pipes - from pictures in the French RTA manual for the C4. You may also need to remove the dash panel above the footwell to help access. Says to disconnect the battery, remove the panels, remove the module wiring connector and unbolt the module, rotate anti clockwise and remove the unit. Refitting, an arrow on the module points to the top. Also have a look on the c4owners.org forum.