52 13 420 Replacing left or right support for front seat back-rest (normal / manual)
WARNING: This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, and 2001 BMW 525i. However, it is still accessible from the selected car via links, so may be relevant.
This operation is described in section on:
Replacing backrest cover for left or right front seat,
refer to 52 13 405 REPLACING BACKREST COVER FOR FRONT SEAT (NORMAL/MANUAL), LEFT OR RIGHT .