Hi everyone, can anybody give me some advice with a problem I have with my 350Z? Since the cold weather my driver side window kept getting stuck and now it wont open. I also have a problem with the mirrors, they still open and close, they still adjust but they no longer move when I reverse. All these problems started with the freezing cold weather this year, I did pop the car in to Nissan and they said the window needs a new motor at a cost of £365.00!!!! Can they be sure this is the problem without taking the door apart and looking at the motor/electrics? Thanks