17 00 039 Venting cooling system and checking for leaks (N62): Notes
WARNING: This page is about a different car, the 2005 BMW 645Ci and 2004 BMW 645Ci. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Danger of scalding!
Open sealing cap only after engine has cooled down.
No vent plugs on radiator and thermostat housing.
Cooling system is vented while it is filled and during subsequent idle operation.
NOTE:
Before filling, turn on ignition. Set blower to low level. Seat heating controller to maximum temperature. This ensures that the heater valves are fully opened and the auxiliary water pump starts up.
IMPORTANT:
The auxiliary water pump must deliver coolant in order to ensure fully venting!
Installation:
Use only recommended coolant.
Check cooling system for leaks.