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:

Checking with Expansion Valve and Receiver/Dryer, with Internally Regulated A/C Compressor
  Note Connecting service station. Refer to → Chapter „Connecting Service Station“. Observe test requirements. Refer to → Chapter „Pressures, Checking“. –  ...

Ultrasound A/C Cleaner -VAS6189B
The Ultrasonic HVAC Cleaning System -VAS6189A- is placed in the front passenger footwell and sprays Aero-Clean. Aero-Clean neutralizes microbes and bacteria inside the heater and A/C unit. The unit comes with Operating Instructions. ...

Checklist
To ensure your own safety and that of your passengers, observe the following actions in the specified order : Stop the vehicle at a safe distance away from moving traffic and on a suitable surface . Switch on the hazard warning lights using the button . Apply the handbrake ...