61 31 192 Replacing Knob For Controller
WARNING: This page is about a different car, the 2007 BMW 550i and 2006 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.
Detach knob for controller (1) in direction of arrow.
Installation:
Fit knob for controller (1) so that guides (2) are seated in mountings (3).
Press knob for controller (1) in middle until it engages.