64 0... Disconnecting a water hose
WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, and 2008 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.
Special tools required: 13 3 010
NOTE:
When removing water hoses which are located in the upper area of the cooling system, disconnecting them prevents a large-scale escape of coolant.
Place special tool 13 3 010 on the coolant hose (1) as depicted. Disconnect water hose (1) by turning nut (2) in direction of arrow.