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Audi A1 from MY 2017

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Vehicle Required Adapters for the Connections to A/C Compressor Adapters Necessary for the Connections to the Reservoir or Receiver/Dryer Miscellaneous
Audi A1 (8X_) from MY 2017 -- Compressor manufacturer "Denso","Sanden" or "Delphi/Mahle"
  • Low pressure side Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS 6338/12  connected with the A/C Service Station and the Refrigerant Circuits Adapter Set - Adapter 48:VAS 6338/48 
  • High pressure side Refrigerant Circuits Adapter Set 1 - Adapter 3:VAS 6338/3  or Refrigerant Circuits Adapter Set 1 - Adapter 2:VAS 6338/2  (depending on the version of the A/C compressor and its refrigerant line).
Different versions-- Version 1 (the receiver/dryer is integrated on the condenser): the adapter is not needed, the desiccant bag is removed from the receiver/dryer on the condenser and opening is closed again for flushing.-- Version 2 (receiver/dryer attached to the condenser): the adapter is not needed, the receiver/dryer remains installed (it will be replaced after flushing) The expansion valve is removed and the Refrigerant Circuits Adapter Set 1 - Adapter 34:VAS 6338/34  or Refrigerant Circuits Adapter Set 1 - Adapter 39:VAS 6338/39  (see the note below) is installed (or the removed expansion valve is drilled for flushing and installed again). Refer to PRELIMINARY WORK TO CLEAN REFRIGERANT CIRCUIT (FLUSHING WITH REFRIGERANT R1234YF) .
NOTE:

The receiver/dryer may be attached to or integrated in the condenser on the Audi A1 / S1, depending on the version of the condenser. A dryer cartridge is installed in the integrated receiver/dryer and can be replaced separately. An attached receiver/dryer (introduction TBD) must be replaced after the flushing. Refer to the Parts Information and Refrigerant Circuit (vehicle-specific service information).

There are different versions of the A/C unit (different heater core and sears different expansion valve etc.) depending on time period of production and from the VIN number on Audi A1 / S1. Refer to the Parts Information. Vehicles with the type keys "8X1" and "8XA" in the VIN have an expansion valve installed, where both refrigerant lines are attached at the top. This is where the Refrigerant Circuits Adapter Set 1 - Adapter 34:VAS 6338/34  fits. For vehicles with the model codes "8XF" and "8XK" in the VIN number, an expansion valve is installed, on which both refrigerant pipes are attached at the bottom. The Refrigerant Circuits Adapter Set 1 - Adapter 39:VAS 6338/39  fits here. Refer to EXPANSION VALVE, REMOVING AND INSTALLING (vehicle-specific service information).