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:

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 ...

Exterior Lights, Switches
HID Headlamp Usage and Safety Precautions Special tools and workshop equipment required Protective Eyewear Gloves –  Note the following if working with HID headlamps: ...

O-Ring
  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 ...