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:

Indicator lamp
First read and observe the introductory information and safety warnings  Lit up Possible cause Cruise control system (CCS) is controlling the speed. Several warning and indicator lamps will light up briefly as a functional check whe ...

Flushing Circuit Block Diagrams
  Note The arrows in the following illustrations show the direction of refrigerant flow while flushing. During flushing, refrigerant flows in the opposite direction than during A/C system operation, therefore the high pressure side of A/C se ...

Inspecting Tires
Because tire damage can have serious consequences, the technician and the driver should regularly check the tires, as it is the best form of early problem recognition. Pre-damaged tires cannot withstand driving situations like high vehic ...