Heater And A/C Unit, Removing And Installing: Removing

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Coolant Reservoir Cap

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WARNING:

There is a risk of scalding from hot steam and coolant.

The cooling system is under pressure when the engine is warm.
To reduce the pressure, cover the coolant reservoir cap with cloths and then open it carefully.

-- Open the coolant reservoir cap -arrow-.

-- Discharge the refrigerant circuit. Refer to Refrigerant Circuit (Refrigerant R134a Servicing, Refrigerant Circuit, Working with A/C Service Station) or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .

-- Disconnect the refrigerant line with inner heat exchanger from the expansion valve. Refer to REFRIGERANT LINES WITH INNER HEAT EXCHANGER, REMOVING AND INSTALLING .

-- Mark the installation position of the coolant hoses -1 and 4-.

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NOTE:

The heater core is designed for a specific coolant flow direction. Therefore, coolant hoses must be connected on the correct sides.

-- Clamp off the coolant hoses using the Hose Clamps - Up To 25mm :3094 .

-- Lift the clamps -2 and 3- and remove the coolant hoses from the heater core for the heater.

-- Slide a short hose -A- onto the upper connection.

Fig 2: Identifying Hose, Container And Heater Core

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-- Insert the compressed air gun into the end of the hose.

-- Hold a container -B- under the lower connection -C- and carefully blow the coolant out of the heater core using the compressed air gun.

-- Seal the open lines and connections with clean plugs from the Engine Bung Set :VAS6122 .

-- Remove the instrument panel central tube. Refer to INSTRUMENT PANEL CROSSMEMBER .

-- Disconnect the connector -3- from the fresh air blower -1-.

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-- Cover the carpet under the heater and A/C unit with absorbent paper.

-- Remove the airbag control module. Refer to OVERVIEW - AIRBAG CONTROL MODULE .

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WARNING:

Danger of the airbag control module malfunctioning due to corrosion on the connector.

Cover or seal the airbag control module connector after disconnecting to prevent moisture from entering.

-- Remove the condensation water drain -2- from the heater and A/C unit -1-.

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-- Remove the heater and A/C unit -1- from the brackets.

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-- Free up the line channel -3-.

-- Free up the wiring harness -2- at the mounts -4- -arrows-.

-- Remove the heater and A/C unit to the right.