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Home >> Audi >> 2018 >> S4 Premium Plus >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> Solar Ventilation >> AIR CONDITIONING [R134a Servicing] (REFRIGERANT CIRCUIT) >> 87 Air Conditioning >> Refrigerant Circuit >> Refrigerant Circuit, Cleaning (Flushing) With Refrigerant R134A >> Adapter For Assembling Flushing Circuit >> AUDI 80, AUDI 90, AUDI Coupe, AUDI Cabriolet And AUDI A4

AUDI 80, AUDI 90, AUDI Coupe, AUDI Cabriolet And AUDI A4

Vehicle Required adapters for the connections to A/C compressor Adapters necessary for the connections to the reservoir or receiver/dryer Miscellaneous
Audi 80 (8A_/8C_), Audi Coupe (8B_), Audi Cabriolet (8G_) through MY 2002 Audi A4 (8D_) from MY 1995  -- Compressor manufacturer "Zexel / Valeo" (threaded connections)
  • Low pressure side A/C Adapter Set - Adapter 8:VAG 1785/8 
  • High pressure side A/C Adapter Set - Adapter 7:VAS1785/7 
Reservoir with different connection versions
  • Version "1"
-- Threaded connection at input Refrigerant Circuits Adapter Set 1 - Adapter 9:VAS6338/9  .-- Threaded connection at output A/C Adapter Set - Adapter 8:VAG 1785/8 
- Restrictor removed, connections reconnected
  -- Compressor manufacturer "Denso" (block connections with radial and axial sealing)
  • Low pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS6338/12 
  • High pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 2:VAS6338/2 
  • Version "2"
-- Threaded connection at input Refrigerant Circuits Adapter Set 1 - Adapter 9:VAS6338/9  .-- Block connection with axial sealing at output Refrigerant Circuits Adapter Set 1 - Adapter 10:VAS6338/10  .
 
Audi A4 (8E_) from MY 2001 Audi A4 Cabriolet (8H_) from MY 2003  -- Compressor manufacturer "Denso" (block connections with radial and axial sealing)
  • Low pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS6338/12 
  • High pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 2:VAS6338/2 
Reservoir with different connection versions
  • Version "1"
-- Block connections with axial sealing at input and output
  • Refrigerant Circuits Adapter Set 1 - Adapter 10:VAS6338/10  (necessary two times)
- Restrictor removed, connections reconnected
  -- Compressor manufacturer "Denso" (block connections with radial seal). Refer to A/C COMPRESSOR / REFRIGERANT CIRCUIT / REFRIGERANT CIRCUIT [R1234yf] (vehicle-specific repair information).
  • Low pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS6338/12 
  • High pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 3:VAS6338/3 
  • Version "2"
-- Block connections with radial sealing at input and output
  • Refrigerant Circuits Adapter Set 1 - Adapter 8:VAS6338/8  (necessary two times)
 
Audi A4 (8K_) from MY 2008  -- Compressor manufacturer "Denso"
  • Low pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS6338/12 
  • High pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 3:VAS6338/3 
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 Refrigerant Circuits Adapter Set 1 - Adapter 36:VAS6338/36  installed (or drilled expansion valve, for example 8K0 820 679 A installed). Refer to REFRIGERANT CIRCUIT, CLEANING (FLUSHING) WITH REFRIGERANT R134A .-- The refrigerant line with the inner heat exchanger remains installed or will be installed after installing the adapter.
Audi A4 (8W_) from MY 2016 Audi A4 (86_) from MY 2017  -- Compressor manufacturer: "Denso" or "Sanden"
  • Low pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 12:VAS6338/12 
  • High pressure side: Refrigerant Circuits Adapter Set 1 - Adapter 3:VAS6338/3 
-- No adapter required, dryer is removed from receiver/dryer on condenser and the opening is sealed. The expansion valve is removed and Refrigerant Circuits Adapter Set 1 - Adapter 44:VAS6338/44  is installed (or an old expansion valve is drilled on and installed as an adapter. Refer to REFRIGERANT CIRCUIT, CLEANING (FLUSHING) WITH REFRIGERANT R134A  and the parts information.
NOTE:

Depending on the condenser manufacturer, the receiver/dryer version for the Audi A4 (8K_) from MY 2008 varies. Refer to OVERVIEW - REFRIGERANT CIRCUIT COMPONENTS - CONDENSER / REFRIGERANT CIRCUIT / REFRIGERANT CIRCUIT [R1234yf] (vehicle-specific repair 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 CONDENSER, REMOVING AND INSTALLING / RECEIVER/DRYER OR ACCUMULATOR AND RESTRICTOR, REPLACING AFTER CLEANING REFRIGERANT CIRCUIT / REFRIGERANT CIRCUIT / REFRIGERANT CIRCUIT [R1234yf] (vehicle-specific repair information) and the parts information.