Adapter For Assembling The Flushing Circuits, TOUAREG From My 2015

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

	Required adapters for the connections to A/C compressor	Required adapters for connections to receiver/dryer / to second evaporator	Miscellaneous
Refrigerant Circuit, Cleaning: Vehicle with one evaporator	Low pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS 6338/12 connected to the A/C Service Station and the Refrigerant Circuit Adapter Set - Adapter:VAS 6338/48 High pressure side: Rinsing Adapter:VAS 6338/3A	Different versions:-- No adapter necessary, the receiver/dryer remains installed (or is integrated in the condenser).-- Remove the dryer cartridge before flushing out of the receiver/dryer on the condenser and reseal the opening refer to the notes).	Expansion valve: Refrigerant Circuits Adapter Set 1 - Adapter 17:VAS 6338/17 or Refrigerant Circuits Adapter Set 2 - Adapter 33:VAS 6338/33
Refrigerant Circuit, Cleaning: Additionally for vehicles with two evaporators		To flush the circuit with the evaporator in the front A/C unit Rinsing Adapter:VAS 6338/11A and Rinsing Adapter:VAS 6338/5A (to seal the refrigerant circuit to the second evaporator)	Expansion valve to the evaporator in the front A/C unit removed and Refrigerant Circuits Adapter Set 1 - Adapter 17:VAS 6338/17A or Adapter for Expansion Valve:VAS 6338/33 .
		To flush the second evaporator and corresponding lines Rinsing Adapter:VAS 6338/3A and Rinsing Adapter:VAS 6338/4A	Expansion valve is removed from the refrigerant lines to the evaporator in the rear A/C unit and install Adapter for Expansion Valve:VAS 6338/33A .
Clean the A/C compressor: Electrically-Driven A/C Compressor	Adapter:VAS 6338/40 and Adapter:VAS 6338/41

On vehicles with two evaporators, the refrigerant circuit with the evaporator in the front of the A/C unit is flushed first. The refrigerant circuit to the second evaporator (in the rear A/C unit) must be blocked off so that the refrigerant flows in the specified direction during the flushing procedure. This is done by installing the refrigerant lines to the second evaporator with Rinsing Adapter:VAS 6338/11A and Rinsing Adapter:VAS 6338/5A (closed adapter). After the refrigerant circuit with the evaporator is flushed, install both adapters Rinsing Adapter:VAS 6338/3A and Rinsing Adapter:VAS 6338/4A and flush the refrigerant circuit with the evaporator in the rear of the A/C unit.
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.