Audi A4 (8K_) from MY 2017

WARNING: This page is about a different car, the 2023 Audi SQ8, 2023 Audi RS Q8, and 2023 Audi Q8. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle	Required Adapters for the Connections to A/C Compressor	Adapters Necessary for the Connections to the Reservoir or Receiver/Dryer	Miscellaneous
Audi A4 (8K_) from MY 2017	-- Compressor manufacturer "Denso" 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	Receiver/dryer (different versions)-- No adapter needed, the receiver/dryer remains installed-- Depending on the condenser version, remove the dryer cartridge from the receiver/dryer on the condenser before flushing and then seal the opening again (see note).	Expansion valve removed and the Refrigerant Circuits - Adapter 38:VAS 6338/38 (or a drilled open expansion valve, refer to PRELIMINARY WORK TO CLEAN REFRIGERANT CIRCUIT (FLUSHING WITH REFRIGERANT R1234YF) .) installed.-- The refrigerant line with the inner heat exchanger remains installed or will be installed after installing the adapter.

NOTE:

The receiver/dryer version for the Audi A4 (8K_) from MY 2017 varies based on the condenser manufacturer. Refer to Refrigerant Circuit (vehicle-specific service information) and the Parts Information. The receiver/dryer may be attached to or integrated in the condenser, depending on the version of the condenser. The integrated receiver/dryer has a dryer cartridge that is no longer available as a replacement part. In the event there is a complaint on a vehicle with this condenser, the condenser must be completely replaced. Refer to the Parts Information.

Condensers with an integrated receiver/dryer or dryer cartridge that cannot be replaced separately or is not available as a replacement part, the condenser must be replaced after flushing (with the dryer cartridge installed). Refer to Refrigerant Circuit (vehicle-specific service information) and the Parts Information.

The Audi A4 (type 86_ for China) from MY 2017 currently only offered with refrigerant R134a. If necessary, the refrigerant circuit can also be flushed with refrigerant R1234yf as described for the Audi A4 (8W_) from MY 2017 when using the adapters specified for this vehicle. Refer to Refrigerant Circuit (vehicle-specific service information).