52 24 005 Removing And Installing/Replacing Rear Seat (Normal)
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
Unclip rear seat (1) on left and right.
Feed out belt buckles (2).
If necessary, disconnect plug connection for seat heater.
Remove rear seat (1).
Release screws (1).
Remove cup holder (2) towards front.