Replacing the heater valve for the heating and air-conditioning unit (S63) (X6 M)

Repair work on the cooling system may only be carried out when it has cooled down.

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 work: 

• Remove INTAKE SILENCER HOUSING .
• Remove COOLANT EXPANSION TANK .

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.

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Make sure that the rubber mounts (1) on the heater valve are securely seated in the bracket on the side member (2) to prevent a development of noise.

Courtesy of BMW OF NORTH AMERICA, INC.

After installation: 

• Vent and fill COOLING SYSTEM WITH VACUUM FILLING UNIT and check for leaks