Volkswagen Polo Service & Repair Manual: Refrigerant Circuit Design

Pressure Relief Valve

  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the sys ...

Refrigerant Circuit with Expansion Valve and Evaporator

1 -  Evaporator 2 -  Expansion Valve 3 -  Valve for extracting, filling and measuring ...

Other materials:

Repair Instructions for the Underbody and Stone Chip Protection
  Note The underbody and stone chip protection structure must be restored back to its original layer strength and appearance during a repair. Water drain holes must remain free. All threade ...

Extraction and Charging System Safety Regulations
Make sure the shut-off valves are closed before connecting the charging system to the air conditioning system. Make sure the process is finished before disconnecting the charging system from the A/C system. This prevents any refrig ...

Improvised Tools
  Note This list outlines the testers, tools and materials required for expert refrigerant circuit repair work.   Caution Non-approved tools or materials such as leak sealing additiv ...