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:

Pressure Relief Valve
  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 ...

Trailer Socket
Connect the trailer socket to the vehicle electrical system of the vehicle pulling the trailer according to the manufacturer instructions. Refer to the applicable wiring diagrams or manufacturer installation instructions when installing ...

Tire Wear, Center
This wear pattern is found on drive wheels on high-powered vehicles that often drive long stretches at high speed. At high speeds, the centrifugal force increases the tire diameter at the center of the tread more than at the shoulders of ...