Volkswagen Polo Service & Repair Manual: Refrigerant Circuit, Removing Contaminants

Refrigerant Circuit, Tracing Leaks, with Leak Detection System -VAS6196- or Leak Detection Kit -VAS6201A- or Succeeding Model

  Note This repair manual describes different methods for detecting leaks in the refrigerant circuit. These methods have been tested and result in ...

Refrigerant Circuit, Flushing with Compressed Air and Nitrogen

...

Other materials:

Discharge Refrigerant Circuit with 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. ...

Water Content
Only very small amounts of water are soluble in liquid refrigerant. On the other hand, refrigerant vapor and water vapor mix in any ratio. Only a small drop of water may get into the refrigerant circuit. The dryer, dryer bag or dryer car ...

Indicator lamp in the vehicle key
Fig. 20 Indicator lamp in the vehicle key First read and observe the introductory information and safety warnings If a button on the vehicle key is pressed briefly, the indicator lamp (arrow) flashes once. The lamp will flash several times if the button is pressed and held, e.g. convenien ...