I picked up my X5 from the shop. The coolant expansion tank cracked and needed replacing. Drove it home with the windows down and music off to make sure I didn't hear any weird noises. Rolled up the window when I got home and heard a loud pop. The window only rolled halfway up. I opened the door panel, only to find my window regulator was beyond repair. I drove to Auto Zone and picked up a new one, installed it in less than an hour and went to work. learn to fix it yourself. the dealership is very expensive