Dont really know how best to describe this. I have a Clio MTV. On the dials for where you want the air to blow (feet, face, windscreen etc), there is a picture at the top where you can see a car and theres an arrow on the outside going over the windscreen (you with me so far?). What does this do?
I have put the power on full (4) and can hear the air blow out but as soon as I change it to the other function, it goes silent.
I obviously never had a handbook with the car and havent a clue what it does. You probably dont even have a clue what Im talking about!