my drivers side window that is. it was a balmy 52 degrees today so i opened the window.
the dealer where i purchased could not see me before monday, but fortunately the other dealer nearby said 'come on in". i arrived there with the left side of my face chilled but hopeful.
turns out the switch was bad. but here is where the story gets good.
the dealer did not have a replacement switch in stock. so my SA talks to the SM and they remove a switch from a new vehicle on the lot. 1.5 hours and i am again motoring in the warmth and dry comfort of my vehicle.
mucho props to Leith BMW.