61 31 208 Removing and Installing/Replacing Switch For Front Lumbar Support
WARNING: This page is about a different car, the 2010 BMW 650i, 2009 BMW 650i, 2008 BMW 650i, 2007 BMW 650i, and 2006 BMW 650i. However, it is still accessible from the selected car via links, so may be relevant.
This operation is described in:
"Removing and installing/replacing outer cover on front seat (sport/electric) ". See 52 16 040 REMOVING AND INSTALLING/REPLACING OUTER COVER ON FRONT LEFT OR RIGHT SEAT (SPORTS/ELECTRIC)