VW Touran manuals

Volkswagen Touran Service Manual: Leaks or Internal Damage, for Example Noises or No Output

  Note
For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor. Refer to → Electrical System Hybrid; Rep. Gr.93.
  Discharge the refrigerant circuit.
  Remove the A/C compressor.
  Note
In the case of internal damage (on A/C compressor), flush refrigerant circuit with refrigerant R134a. Refer to → Chapter "Refrigerant Circuit, Flushing (Cleaning) with Refrigerant R134a".
If a different A/C compressor is installed with a different refrigerant oil, the refrigerant circuit is to be flushed with refrigerant R134a. Refer to → Chapter "Refrigerant Circuit, Flushing (Cleaning) with Refrigerant R134a".
  Replace receiver/dryer/dryer cartridge and expansion valve or reservoir and restrictor.
  If a leak is present, check the expansion valve for debris or corrosion and replace if necessary.
  Assemble, evacuate and charge the refrigerant circuit.
   
    Flushing Not Necessary
      Note For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor. Refer to &# ...

    Receiver/Dryer or Reservoir and Restrictor, Replacing
    ...

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