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:

Flat Spots, Correcting
Flat spots cannot be removed from tires with workshop equipment. Such flat spots can be "driven out" only by driving the car until the tires are warm. We do not recommend the following method during ...

AGM Battery
Maintenance-Free Battery with Specific Electrolyte without a Visual Indicator Lead-acid battery, where the electrolyte is fixed in an absorbent glass mat (AGM). The battery is closed and equipped with breather valves. ...

A/C Refrigerant Low Pressure Switch -F73
  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. Refer to → Rep. Gr.87.     ...