64 12 577 Replacing changeover valve for independent/auxiliary heater

WARNING: This page is about a different car, the 2013 BMW X5 M, 2012 BMW X5 M, 2011 BMW X5 M, and 2010 BMW X5 M. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of scalding!
Only perform the following tasks on an engine that has cooled down.
FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM .

NOTE: Disconnect coolant hoses from changeover valve for independent/auxiliary heater.

Necessary preliminary tasks:

REMOVE FRONT LEFT WHEEL ARCH TRIM

IMPORTANT: Risk of damage!
Observe coolant throughflow direction, mark coolant hoses before removing.

NOTE: If necessary, catch escaping coolant.

Fig 1: Identifying Independent/Auxiliary Heater, Plug Connection, Spring Clamp And Nuts

Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connection (1).

Release spring clamps (2) and detach coolant hoses.

Release nuts (3) and remove changeover valve for independent/auxiliary heater (4).

After installation:

Vent cooling system and check for water leaks