Volkswagen Polo Service & Repair Manual: A/C Service and Recycling Units

Pressure Gauge, Tests and Measurements

Indicators on pressure gauge 1 -  Temperature scale for refrigerant R134a CF3–CH2F or CH2F–CF3. 2 -&nb ...

Extraction System Group Classifications

At this time, A/C service units for extracting, cleaning and filling refrigerant for motor vehicle A/C systems are available from various manufacturers. ...

Other materials:

General Information
In order to be able to force moisture and other contaminants out of refrigerant circuit, compressed air and nitrogen (to force moisture out of refrigerant circuit) are to be used. For the most part, blowing through the refrigerant circui ...

Information stored in the control units
First read and observe the introductory information and safety warningsYour vehicle is factory fitted with electronic control units which are responsible for engine and gearbox management. The control units also monitor the function of the exhaust system and the airbags. These electronic con ...

Winter tyres
First read and observe the introductory information and safety warningsIn winter road conditions, winter tyres will considerably improve the car's handling. The design of summer tyres (width, rubber compound, tread pattern) gives less grip on ice and snow. Volkswagen urgently recommends the ...