Preliminary Work For Flushing Refrigerant Circuit

WARNING: This page is about a different car, the 2023 Volkswagen Arteon. However, it is still accessible from the selected car via links, so may be relevant.

Special tools and workshop equipment required

A/C Service Station with flushing device
Refrigerant Circuits Adapter Set 1:VAS 6338/1

If a vehicle-specific description is available for cleaning the refrigerant circuit, then refer to Refrigerant Circuit .
Pay attention to the main wiring diagram for cleaning, which is vehicle-specific and depending on vehicle equipment. Refer to MAIN WIRING DIAGRAM FOR CLEANING THE REFRIGERANT CIRCUIT .

Preliminary Work

-- Remove the A/C compressor. Refer to A/C COMPRESSOR, REMOVING AND INSTALLING .

Vehicles with reservoir/receiver/dryer

-- Remove the reservoir/receiver/dryer. Refer to Refrigerant Circuit .

-- Connect the refrigerant lines to the reservoir/receiver/dryer. Refer to ADAPTER FOR ASSEMBLING FLUSHING CIRCUIT .

Vehicles with Desiccant Bag/Dryer Cartridge

-- Remove the desiccant bag/dryer cartridge and the screen if equipped. Close the receiver/dryer again. Refer to .

Vehicles with expansion valve

-- Remove the expansion valve and replace with the adapter. Refer to EXPANSION VALVE, REMOVING AND INSTALLING and ADAPTER FOR ASSEMBLING FLUSHING CIRCUIT .

Vehicle with two evaporators

-- Disconnect the second evaporator from the refrigerant circuit of the first evaporator and flush in a separate work procedure. Refer to ADAPTER FOR ASSEMBLING FLUSHING CIRCUIT and Refrigerant Circuit .

Vehicles with high-voltage system (without additional A/C system functions)

-- Install further adapters to flush the refrigerant circuit. Refer to ADAPTER FOR ASSEMBLING FLUSHING CIRCUIT .