Hello Betty, you are experiencing exactly the same issue as I have. My gripe is that in rainy weather the mirrors should clear when switched on . Audi are trying to be too clever here and , in my opinion, this is dangerous as it leads to poor vision . My car actually cleared the mirrors on one day last week when the outside temperature was 1 deg. I am booked in to Stirling Audi in mid November so let’s see if they actually fit an older controller which will negate the temperature setting which looks like being a problem. I will keep you informed when they fit the new controller. They haven’t admitted anything so I’m only guessing that this is the plan to sort me out!