Please help, my 2001 735i has just developed a problem, the nearside front door will not unlock or open either with the door handle inside or out, or with the key or using the remote. In addition, on that door only, the electric windows have stopped working, the wing mirror will not adjust nor does it dip when reversing. However the light under the door as seen from the inside still works. All other doors are working as normal. All fuses seem to be intact too.
Any advice would be greatly appreciated.