OK. I only seem to get hot air coming out of my dash top vents? I'm not really sure how the whole heating thing works - I can't seem to get hot air out of the vents immediate to me? Any ideas - do I need to fiddle with my flaps then?
I don't think you can! As I understand it, each set of vents is dedicated in a fiendishly complex way. Heated air at the top, external air in the middle, and air-conditioner below.