71 60 100 Removing and installing/replacing control unit for trailer coupling release
WARNING: This page is about a different car, the 2013 BMW 550i GT, 2012 BMW 550i GT, 2011 BMW 550i GT, and 2010 BMW 550i GT. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
Read and comply with notes on protection against electrostatic damage (ESD PROTECTION) .
Necessary preliminary tasks
Unfasten plug connection (1) and disconnect.
Unlock equipment holder (2).
Pull out AHK control unit (3) upwards in direction of arrow.
Installation note:
Make sure control unit AHK (3) is correctly seated.