64 11 207 Replacing heater core
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WARNING:
Follow instructions for working on cooling system! Refer to 17 00 ... FOLLOW INSTRUCTIONS FOR WORKING ON COOLING SYSTEM
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Necessary Preliminary Tasks:
- Draining coolant. Refer to 17 00 005 DRAINING AND ADDING COOLANT .
- Remove battery compartment (R50), refer to 61 21 100 REMOVING AND INSTALLING/REPLACING BATTERY CONTAINER , or remove air filter housing (R53 / R50 diesel).
- Remove left storage compartment or panel for pedal assembly. Refer to 51 16 392 REMOVING AND INSTALLING/REPLACING STORAGE COMPARTMENT IN INSTRUMENT PANEL TRIM (DRIVER'S SIDE) .
Release spring clamps (2) and detach coolant hoses (1).
IMPORTANT:
Carefully blow through aluminum twin pipe to remove remaining coolant from heat exchanger for heating system.
Installation:
Vent cooling system and check for leaks. Refer to 17 00 009 CHECKING COOLING SYSTEM FOR LEAKS (W10) and/or 17 00 039 BLEEDING COOLING SYSTEM AND CHECKING FOR WATER LEAKS
Release screws (1).
Remove cover (2).
Release screws (1).
Release clamps (2).
Remove heater (3).
Installation:
Make sure heater (3) is correctly seated.
Replace sealing rings.
Coat new sealing rings with antiseize agent.
Make sure sealing rings and clamps (2) are correctly seated.