63 99 465 Replacing bulb in left or right door mirror
WARNING: This page is about a different car, the 2003 BMW X5 and 2002 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Remove housing from door mirror, and replace bulb. Refer to 51 16 040 REMOVING AND INSTALLING/REPLACING HOUSING FROM DOOR MIRROR .