Volkswagen Polo Service & Repair Manual: A/C Compressor, Replacing

Refrigerant Still in Circuit

Discharge the refrigerant circuit. –  Remove malfunctioning component, flush with compressed air, collect escaping refrigerant oil. ...

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 &# ...

Other materials:

Refrigerant Circuit with A/C Service Station, Draining
  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. ...

Special Tools
Special tools and workshop equipment required Suction Feed Spray Gun -VAG1538- Stone Chip Tester -VAS5102A- Paint Thickness Test -VAS5278- Paint Thickness T ...

Charging Systems not Requiring a Permit
At this time, A/C service units for extracting, cleaning and filling refrigerant for motor vehicle A/C systems are available from various manufacturers. Charging systems not requiring a permit are ones used for transferring compressed ga ...