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:

4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing
  Note Do not repair the heated oxygen sensor wires. Repairing may result in malfunctions. Use the faulty sensor as a guide for installing all of the accompanying attachments, cable ties or marking bands. ...

Severely Discharged Batteries
  WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter „Warnings and Safety Precautions“. For a battery to be indicated as †...

Overview - Cigarette Lighter -U1-
  Caution Using force to remove cigarette lighter sockets without illumination can result in damage to the mounting sleeve retainers. The Cigarette Lighter Release Tool -T40148- can o ...