51 42 040 Removing and Installing/Replacing Trim For Ashtray On Rear Left or Right Door Trim Panel
WARNING: This page is about a different car, the 2005 BMW 760i. However, it is still accessible from the selected car via links, so may be relevant.
Operation is identical to:
Replacing rocker switch for side window operation. See 61 31 116 REPLACING ROCKER SWITCH FOR SIDE WINDOW OPERATION (REAR)