Passat Syncro Wagon V6-2.8L (ATQ) (2000)
Housing Assembly HVAC: Service and Repair
Heater and A/C Unit - Removing and Installing
CAUTION!
Before beginning repairs on the electrical system:
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Obtain the anti-theft radio security code
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Switch off all electrical consumers
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Switch ignition off and remove ignition key
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Disconnect negative (-) battery terminal
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When disconnecting and reconnecting battery terminals, observe all applicable Notes and torque specifications, as well as instructions on
performing OBD program and electrical system function checks.
Notes
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Observe all A/C refrigerant system safety measures.
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Service refrigerant system using Kent More ACR 4 or equivalent.
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During servicing, all couplings, fittings and related fasteners must be torqued to specifications.
Removing
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Discharge refrigerant system. See: Service and Repair
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Drain engine coolant. See: Engine, Cooling and Exhaust/Cooling System/Service and Repair
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Remove instrument panel. See: Body and Frame/Interior Moulding / Trim/Instrument Panel/Dash Board/Service and Repair
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Remove coolant hoses at heater core.
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Note Installation orientation of coolant hoses -A- (inlet and outlet) in engine compartment.
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Clamp off both coolant hoses to heater core using 3094 hose clamps (or equivalent).
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Release both coolant hose clamps using suitable pliers and pull hoses off from heater core inlet and outlet.
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Seal off inlet and outlet at heater core to prevent coolant from escaping.
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Remove refrigerant lines at evaporator.
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Remove screw -3- (15 Nm).
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Gently rock flange with refrigerant lines -2- up and down until they release from evaporator.
CAUTION!Immediately plug open connections on A/C components and lines to prevent dirt and moisture contamination
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Always replace both O-rings -1-.