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:

Contaminants Removed from Refrigerant Circuit
The reservoir/receiver/dryer or dryer bag/cartridge should not be replaced under the following conditions. After an accident when there is no damage on the reservoir/receiver/dryer. The repair was done quickl ...

Foreign Object Damage
Driving over hard, pointed objects like nails, screws and the like can pierce the tire. This always leads to tire damage.     Damage from Imbedded Foreign Bodies Frequ ...

Receiver/Dryer
  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 ...