64 12 577 Replacing Changeover Valve For Independent/Auxiliary Heating

64 12 577 Replacing Changeover Valve For Independent/auxiliary Heating







WARNING:
Risk of scalding.
Only perform the following repair work on an engine that has cooled down.
Follow notes for repair work on cooling system.







Necessary preliminary work:
- Completely remove the independent heater.







IMPORTANT:
Risk of damage.
Observe marked coolant flow direction.

NOTE:
Mark position of coolant hoses prior to dismantling.
Release spring clamps (1) and detach coolant hoses.







Unfasten connector connection (1) and disconnect.
Unfasten screws (2).
Remove changeover valve for independent/auxiliary heating (3).







After installation:
Top up coolant and vent cooling system.