64 11 273 Replacing water valve for heater (vehicles with N54 or N55 engine)

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2015 BMW Alpina B7L xDrive, 2015 BMW Alpina B7 xDrive, 2015 BMW 750i xDrive, 2015 BMW 750Li xDrive, and 2015 BMW 740Li xDrive. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Risk of burning!

Only perform the following repair work on an engine that has cooled down.

NOTE: Disconnect COOLANT HOSES on water valve.

Recycling:

Coolant emerges when coolant lines are detached. Have a suitable collecting vessel ready.

Catch and dispose of escaping coolant.

Observe country-specific waste disposal regulations.

Necessary preliminary tasks:

Remove REAR LEFT CHARGE-AIR DUCT

NOTE: Picture shows engine removed for purposes of clarity

Release hose clamps (1) and detach coolant hoses.

Disconnect plug connection (2).

Pull water valve (3) upwards out of holders.

Installation note:

Do not mix up connections of coolant hoses.

Replace damaged coolant hoses!

Fig 1: Identifying Hose Clamps, Plug Connection And Water Valve

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

Make sure rubber mount (1) and guide lug (2) are securely seated in holders (3) on wheel arch body.

Fig 2: Identifying Holders, Guide Lug And Rubber Mount

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and vent COOLING SYSTEM and check for water leaks.