Volkswagen Polo Service & Repair Manual: A/C Service and Recycling Units

Pressure Gauge, Tests and Measurements

Indicators on pressure gauge 1 -  Temperature scale for refrigerant R134a CF3–CH2F or CH2F–CF3. 2 -&nb ...

Extraction System Group Classifications

At this time, A/C service units for extracting, cleaning and filling refrigerant for motor vehicle A/C systems are available from various manufacturers. ...

Other materials:

Test after driving for 10 minutes
First read and observe the introductory information and safety warnings Reconnect the tyre filler hose and check the tyre pressure on the tyre pressure display ⑥. 1.3 bar (19 psi / 130 kPA) and lower: Do not drive on! The tyre cannot be sealed adequately with the breakdown set. ...

Refrigerant Circuit, Flushing
  Note For vehicles in which no adapters fit on to the refrigerant pipes, for example, a blower pistol with rubber mouthpiece is to be used to blow through individual components. Special care must be taken not to damage the connections (crus ...

A/C Evaporator Temperature Switch -E33
Function: The A/C Evaporator Temperature Switch -E33- determines the temperature between the evaporator cooling fans. It prevents the possibility of ice building up between the evaporator cooling fans because the current entry to the con ...