If you buy a new mode switch, it will turn the AC on when set to demist.
It was an alteration on later cars. As far as I can see, on the switch
we have in stock, it's just a jump-wire across two of the three pins on
the back of the switch.
My Xantia turns the AC on when set to demist whether I like it or not!
Martin
jchapelhow wrote:
List.
Is there any way of adapting the DMC ventilation control system so
that the air-conditioner can be turned on manually? On my modern car
I often use it to help demist the windscreen.