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Refrigerant Circuit Components

Special tools and workshop equipment required 

NOTE:
  • Refrigerant must be extracted before hand using A/C service station VAS 6007A.
  • The previously used service stations can still be used .
  • To prevent the ingress of dampness all components of the refrigerant circuit which have been opened must be sealed with suitable plugs.
  • The color coding of O-rings for the R134a refrigerant circuits has been discontinued. Colored and black O-rings are used.
  • Under certain conditions, fluid reservoir with dryer is no longer to be replaced after each time the refrigerant circuit is opened. In ELSA, see Heating/Ventilation/Air Conditioning; Air Conditioning with R134a Refrigerant. Refer to General Information ;
  • Information for repairing vehicles with air conditioning and working with refrigerant can be found in General Information
  • Information for repairing vehicles with air conditioning and working with refrigerant can be found in General Information
WARNING:

There is a danger of ice-up.

Refrigerant leaks out if refrigerant circuit is not discharged.

Refrigerant must be extracted before opening refrigerant circuit. If refrigerant circuit is not opened within 10 minutes of extraction, pressure may form in refrigerant circuit due to evaporation. Extract refrigerant once more.

Fig 1: Identifying Refrigerant Circuit Components
GWWN87-10473Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. Expansion Valve
  2. Fluid Reservoir with Drier
    NOTE:

    Under certain conditions, fluid reservoir with dryer is no longer to be replaced after each time the refrigerant circuit is opened. Refer to General Information ;

  3. A/C Compressor
    • Denso manufacturer identification: 7SEU17C
    • Pay attention to notes for installing A/C compressor. Refer to A/C COMPRESSOR 
    • Removing and installing, refer to A/C COMPRESSOR 
  4. Condenser
  5. Bracket
  6. High Pressure Sensor -G65-

    Removing and installing, refer to HIGH PRESSURE SENSOR 

  7. Evacuating and Charging Valve
  8. Nut
    • Quantity: 2
    • 2.5 Nm
  9. Retainer