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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1274 (General, Technical Data (Refrigerant R134A Servicing)) >> 00 General, Technical Data >> Refrigerant Circuit, Removing Contaminants >> Refrigerant Circuit, Flushing With R134A Refrigerant >> Flushing Circuit Block Diagrams >> Refrigerant Circuit With RESTRICTOR And Reservoir

Refrigerant Circuit With RESTRICTOR And Reservoir

WARNING: This page is about a different car, the 2014 Volkswagen Touareg, 2013 Volkswagen Touareg, 2012 Volkswagen Touareg, and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

On vehicles with restrictor and reservoir, the restrictor and reservoir are removed. Restrictor refrigerant pipes are reassembled. The refrigerant pipe to the removed reservoir are connected with each other via two adapters and the Refrigerant Circuits Adapter Set 2 - Adapter 31:VAS6338/31  (from the Refrigerant Circuits Adapter Set 1:VAS6338/1  ).

GWWA87-10135Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.
  1. A/C Service Station
    • With a electronics and a program for flushing for example Robinair A/C Service Unit: ROB134APF 
    • If an A/C Service Station without a flushing program is used, the procedure must be performed manually (evacuate, flush three times with at least 4 kg refrigerant for each and extract the refrigerant again, evacuate).
  2. Refrigerant Hose for A/C Service Station
    • From the high pressure side of the A/C Service Station (mostly red colored) to the low pressure side connection of the A/C compressor on refrigerant circuit (larger diameter).
  3. Adapter for Connecting Low Pressure Side to Refrigerant Circuit
  4. Low Pressure Side Connection on Refrigerant Circuit
  5. Connection to Reservoir
  6. Adapter for Bridging the Removed Reservoir
  7. Refrigerant Charge Hose
  8. Adapter for Bridging the Removed Reservoir
  9. Connection to Reservoir
  10. Evaporator
  11. Component Location of Restrictor
    • Restrictor is removed.
    • Remove restrictor. Refer to Heating, Ventilation & Air Conditioning.
  12. Bolts in Refrigerant Line
    • Bolt together again after removing restrictor. Refer to Heating, Ventilation & Air Conditioning.
  13. Condenser
  14. High Pressure Side Connection on Refrigerant Circuit
  15. Adapter to Connection for High Pressure Side on Refrigerant Circuit
  16. Charge Hose for Refrigerant Circuit Flushing Device
    • From connection to the high pressure side of the A/C compressor on the refrigerant circuit (smaller diameter) to input of Refrigerant Circuit Flushing Device:VAS6336/1  or Air Conditioning Flush Tool:VAS6337/1A  .
  17. Refrigerant Circuit Flushing Device
    • There are different versions and different design, for example Refrigerant Circuit Flushing Device:VAS6336/1  or Air Conditioning Flush Tool:VAS6337/1  .
    • With filter, viewing glass, safety valve, heater, refrigerant reservoir, etc. (depending on version).
      NOTE:

      Depending on the design of the A/C Service Station and the flushing device for the refrigerant circuits, a connection for a service coupling for the refrigerant circuits can be installed on the output and may also be installed on the input of the flushing device. If on the output of the flushing device a service connection with valve is installed this valve must be completely opened when the service coupling is connected. A valve that is not completely opened creates a constriction.

      -- If on the input of the flushing device a connection for a service coupling is present, modify the input so that the refrigerant hose which comes from the vehicle can be directly connected.

      NOTE:

      A service coupling and a valve in the flushing device input makes a constriction which impairs the refrigerant flow from the vehicle in the flushing device.

  18. Refrigerant Hose for A/C Service Station
    • From the low pressure side of the A/C Service Station (mostly blue colored) to the output of the refrigerant circuit flushing device.
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