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:

Evacuating and Charging Valve with Schrader Valve
Special tools and workshop equipment required Torque Wrench 1783 - 2-10Nm -VAG1783- with Torque Wrench 1783 - 1/4" Drive Ratchet -VAS6234-   WARNING There is a dan ...

Compressor Types, Checking Pressures
  Note Check cooling performance. The A/C system is functioning correctly when the air flowing from the instrument panel vents has a temperature of 70C or lower. Setting on Climatronic “LO”. ...

Adapter for Assembling Flushing Circuit
The following table lists the different adapters necessary to connect the service station to the refrigerant circuit, to flush and to bypass the removed receiver/dryer or reservoir and expansion valve (depending on the vehicle). Us ...