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:

O-Ring
  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system. Only use tools and materials approved by the manufactu ...

Adapter for Assembling Flushing Circuit
The following table lists the different adapters necessary to connect the service station to the refrigerant circuit, to flush and to bypass the removed receiver/dryer or reservoir and expansion valve (depending on the vehicle). Us ...

Introduction
The purpose of this Repair Manual is to provide foremen and mechanics with the basic knowledge needed to ensure expert working.   Note Expert knowledge is achieved by one who has taken part successfully in instructiona ...