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

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WARNING: Risk of burning!
Repair work on the cooling system may only be carried out when it 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 leaks.