86 10 ... Disassembly Of Jockey Wheel Or Jockey Wheel Mount
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.
Turn clamping lever (1) in direction of arrow and release clamping connection. Open clamping bracket (2) and remove jockey wheel (3). Release screws on mount (4) and remove screws.
Installation:
Tightening Torque. Refer to TRAILERS - TIGHTENING TORQUES - ALPINA .