VW Polo manuals

Volkswagen Polo Service & Repair 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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Other materials:

Important Information when Working with the A/C Service Station
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...

Battery Charger -VAS5903- Maintenance Charging
  Note If the battery is discharged by an electrical consumer during maintenance charging, the Battery Charger -VAS5903- automatically supplies the appropriate charge. Maintenance charging can be performed without time ...

Run-Flat System PAX, Examining Support Ring
As with the tire, the supporting ring is generally not replaced after driving with flat tire.     Replace the support ring if the following damages have occurred: Blowouts or mis ...

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