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:

Vibration, Road Test, Performing Before Balancing
If a vehicle comes to the workshop with the complaint “vibration”, a road test must be performed before balancing the wheels. That way, information about the type of vibration can be obtained. Obser ...

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. ...

Tires, Rolling Noises, General Information
Rolling noise perceived by the human ear is caused by vibrations transmitted from the noise source to the ear via the air. Here we are interested in noises created by certain characteristics of the tires as well as the effects of rolling ...