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:

Heel and Toe Wear
Heel-and-toe wear is step-like wear of individual tread blocks, due to which an increased rolling noise can develop. The heel-and-toe wear is caused by the uneven distortion of the tread blocks in the contact patch. Heel-and-toe wear appears in more extr ...

Antenna Wires, Repairing
Aerial Cable Repair Set -VAS6720 Special tools and workshop equipment required Repair Set, Aerial Cable -VAS6720- Checking the Antenna Wire. Refer to Replacing the Tool Head. Refer to ...

Empty Refrigerant Circuit
–  Remove malfunctioning component. –  Remove the A/C compressor. –  Remove oil drain plug from A/C compressor.   Note To speed up refrigerant oil drai ...

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