Volkswagen Polo Service & Repair Manual: A/C Technology Basic Principles

Additional Information Sources

Technical Service Handbook outlining action to be taken to rectify current problems. For the repair manual for model-specific repair work. Refe ...

Physical Principles

The four known states of water also apply to air conditioning system refrigerants. 1 -  gaseous (invisible) 2&n ...

Other materials:

Refrigerant Circuit, Converting R12 to R134a and Servicing
  Note The laws and regulations listed below are applicable in Germany. Different or additional laws and regulations may apply in other countries. Addresses in other countries can be obtained from the relevant au ...

Pressure and Boiling Point
The boiling point given in tables for a liquid is always referenced to an atmospheric pressure of 1 bar (14.5 psi). If the pressure acting on a fluid changes, its boiling point also changes. For example, water boils at a lower temperatur ...

12 V Socket
12 V Socket , Removing and Installing   Caution Using force to remove cigarette lighter sockets without illumination can result in damage to the mounting sleeve retainers. The Cigare ...