51 24 ... Removing And Installing/Replacing BOWDEN Cable For Rear Lid Lock (From 03/2005)
WARNING: This page is about a different car, the 2008 BMW Alpina and 2007 BMW Alpina. However, it is still accessible from the selected car via links, so may be relevant.
Operation is described in:
Removing and installing/replacing lock element (lock cylinder) for rear lid . See 51 24 050 REMOVING AND INSTALLING/REPLACING LOCK ELEMENT (LOCK CYLINDER) FOR REAR LID (FROM 03/2005) .