6411273 Replacing water valve for heater

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WARNING: Danger of scalding! Work on the cooling system should only be carried out when the engine has cooled down.
Follow 1700... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM (N51) or 17 00 ... INSTRUCTIONS FOR WORKING ON COOLING SYSTEM (N52)

NOTE: Disconnect coolant hoses on water valve.

Recycling

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

Catch and dispose of emerging coolant.

Observe country-specific waste-disposal regulations.

Necessary preliminary tasks

Release oil reservoir from bracket and place to one side

Disconnect plug connection (1).

Release hose clamps (2) and remove hoses.

Remove water valve (3) from mounting (4).

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

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

To avoid the buildup of noise, make sure that the rubber mounts on the water valve are securely seated in the mounting (2) on the frame side member.

Fig 2: Identifying Frame Side Member Mounting

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

Fill and ventcooling system. See 1700039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N51) or 17 00 039 VENTING COOLING SYSTEM AND CHECKING FOR WATER LEAKS (N52) .