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:

Safety Precautions
General Safety Precautions As per VBG 20, German industrial liability insurance association. Follow the instructions for the workplace. They should be displayed in the workplace. ...

Stopping the engine
First read and observe the introductory information and safety warnings  The steps should only be carried out in the specified order. 1. The vehicle must be completely stationary  . 2. Press the brake pedal. Keep ...

Current Draw Test
  WARNING Batteries that have a light yellow visual indicator do not have to be tested or charged. Jump starting must not be used! There is a risk of explosion during testing, ...