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:

Test Requirements
Radiator and condenser are clean (clean if necessary). The ribbed belt for the A/C compressor and alternator tensioned correctly. All air ducts, covers and seals are OK and installed correctly. ...

Vehicle Diagnostic Tester, Connecting, Golf MY 1998 through 2003
  Apply the parking brake. –  In vehicles with automatic transmission, move the selector lever to the “P” or “N” position. –  In vehicles with manual transmissions, move the shift l ...

Threaded Connections, Repairing
Special tools and workshop equipment required Torque Wrench 1331 5-50Nm -VAG1331-   Note Do not use rust remover, contact spray or grease because the lack of friction will cause the torque to be ...