Volkswagen Polo Service & Repair Manual: Refrigerant R134a

Refrigerant R134a Vapor Pressure Table

The vapor pressure table for every refrigerant is published in literature for refrigeration system engineers. This table makes it possible to determine the vapor pres ...

Refrigerant R134a Physical Data

Vehicle air conditioning systems make use of the vaporization and condensation process. In this case, one works with a substance which boils easily, designated as ref ...

Other materials:

Connecting Service Station
  Turn off the ignition. –  Connect the A/C service station to the power supply. –  Connect quick-release coupling adapter to charging hoses of service station (handwheels not screwed in/ha ...

Coolant Fan Control Module -J293
  Note Available in different construction styles, some installed on coolant fan -arrows-.     This control module switches on and off the A/C clutch and therefore the A/C compressor. It switche ...

Protecting
  Caution Missing protection leads to the electrical system damage.   Note All threaded connections must be tightened to the specified torque. ...