66 20 508 Removing and installing/replacing control unit (Park Distance Control)
WARNING: This page is about a different car, the 2013 BMW Z4, 2012 BMW Z4, 2011 BMW Z4, 2010 BMW Z4, and 2009 BMW Z4. However, it is still accessible from the selected car via links, so may be relevant.
Necessary preliminary tasks:
Unlock plug connections (1) and disconnect.
Lift out control unit (2).
Replacement:
Carry out vehicle programming/encoding using scan tool.