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:

Beru Wheel Electronics Tire Pressure Monitoring Sensor, Removing and Installing
Overview, Beru System   WARNING If tire sealant was used, then the wheel electronics on that particular wheel must be replaced.   WA ...

Refrigerant Circuit Pressures and Temperatures
  WARNING When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure vessel regulations. The pressures and temperatures in ...

Composite Wheels
Composite wheels consist of various parts. The primary components are rims and wheel discs. These components are fastened to each other with special screws and a special procedure. This ensures the wheel's function, proper seal, safety a ...