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:

Vehicle Electrical System, General Repair Information
  Caution Follow the procedure in the repair manual when disconnecting and connecting the battery.   WARNING Some tools are supplied wit ...

Introduction
This chapter contains information on the following subjects:  → Positive and earth jump lead connection points  → How to start the engine using jump leads If the engine fails to start because the vehicle battery is flat, the flat battery can be connected to the battery of anothe ...

Important Information when Working with the A/C Service Station
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the A/C service station and do not extract the refrigerant. ...