11 52 020 Removing and installing or replacing fan coupling (M62): Notes
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Left-hand threads.
Using special tool 11 5 050 brace against pulley and unfasten cap nut from water pump using special tool 11 5 040.
Remove fan wheel with fan coupling from water pump.