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:

Single Wire Seals, Installing
  Note Single wire seals prevent the penetration of water and dirt into the contact housing. They are installed, for example, in the engine compartment and must be reinstalled after a repair. Single wire seal is crimpe ...

Battery, Testing using Midtronics Battery Tester -MCR340VKT
Requirements   WARNING Read and follow the Safety Precautions when working with batteries. Refer to → Chapter „Warnings and Safety Precautions“. ...

Restrictor
  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 ...