64 11 273 Replacing water valve for heater (N63)

WARNING:

Risk of burning.

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

NOTE: Clamp off 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 INTAKE SILENCER HOUSING
Remove COOLANT EXPANSION TANK

NOTE: Engine is shown removed for purposes of clarity.

Disconnect plug connection (1).

Release hose clamps (2, 3) and detach coolant hoses.

Installation note:

Do not mix up connections of coolant hoses.

Replace damaged coolant hoses.

Fig 1: Identifying Coolant Hose Clamps And Plug Connection

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note:

To avoid the buildup of noise, make sure that the rubber mounts (1) on the water valve are securely seated in the mounting on the frame side member (2).

Fig 2: Identifying Rubber Mounts And Frame Side Member

Courtesy of BMW OF NORTH AMERICA, INC.

After installation:

FILL AND VENT and check for leaks