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:

Roll-back function for the electric windows
First read and observe the introductory information and safety warnings The roll-back function for the electric windows can reduce the risk of injuries when the windows are closing . If the one-touch closing function for a window does not work because it is stiff or is being obstructed, the w ...

Electronic immobilizer
First read and observe the introductory information and safety warnings The immobilizer helps to prevent the engine from being started and driven with an unauthorised vehicle key. There is a chip in the key. It automatically deactivates the immobilizer when the vehicle key is inserted into ...

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 refrigerant. The refrigerant employed is tetrafluoroethane R134a, which bo ...