61 31 198 Replace controller chrome ring
WARNING: This page does not describe the selected car, but rather 21 other vehicles, including the 2017 BMW 550i GT xDrive, 2017 BMW 535i GT xDrive, 2017 BMW 535i GT, 2016 BMW 550i GT xDrive, and 2016 BMW 535i GT xDrive. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required:
Lever out "OPTION", "BACK", "MENU" buttons with special tool 00 9 340 .
Lever out chrome ring (1) from latch mechanisms with special tool 00 9 340 and remove upwards.
Installation note:
Retaining lugs on controller must not be damaged.
Check function of the controller.