64 11 274 Replacing water valve for heater

WARNING: This page is about a different car, the 2010 BMW 550i, 2009 BMW 550i, and 2008 BMW 550i. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Danger of scalding!
Only perform this work after engine has cooled down.

Necessary preliminary tasks:

Disconnect coolant hoses from water hose for heater.

NOTE: When removing water hoses which are located in the upper area of the cooling system, disconnecting them using Special Tool 13 3 010 prevents a large-scale escape of coolant.

Unfasten plug connection (1) and disconnect.

Release spring clamps (2) and detach coolant hoses.

Pull out water valve for heater (3) towards top.

Installation:

Fill and vent cooling system. See 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR LEAKS (N62, N62TU) .

Fig 1: Identifying Water Valve For Heater

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Make sure water valve (1) is correctly seated in grommets (2) and rubber mount (3).

If necessary, replace grommets (2) and rubber mount (3).

Fig 2: Identifying Water Valve, Grommets And Rubber Mount

Courtesy of BMW OF NORTH AMERICA, INC.