Volkswagen Polo Service & Repair Manual: Special Tools

Replacing Reservoir, No Contaminants, No Loss of Refrigerant

  Discharge the refrigerant circuit. –  Replace the restrictor depending on the vehicle. –  Rem ...

Commercially Available Tools and Materials

  Note This list outlines the testers, tools and materials required for expert refrigerant circuit repair work.   ...

Other materials:

Visual Inspection
  WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to → Chapter „Warnings and Safety Precautions“. Prior to performing any measurement ...

Leaks or Internal Damage, for Example Noises or No Output
  Note For vehicles with an electrically-driven A/C compressor, de-energize the high voltage system before removing the A/C compressor. Refer to → Electrical System Hybrid; Rep. Gr.93. –  Dischar ...

Refrigerant Circuit Pressures and Temperatures
  WARNING When performing work on refrigerant circuit, observe all generally applicable safety precautions and pressure vessel regulations. The pressures and temperatures in ...