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:

Searching for Refrigerant Circuit Leaks with Compressed Air or Nitrogen
  Note This repair manual describes different methods for detecting leaks in the refrigerant circuit. These methods have been tested and result in success when used correctly. If when searching for compressed air / Nit ...

Run-Flat Tire, Retrofitting/Conditions for use of Run-Flat Tires
  Caution Using run-flat tires on vehicles is permitted only if the run-flat tire is supplied with the vehicle either as standard equipment or as an option. Because pressure ...

Battery with Visual Indicator, Standard
This is a maintenance-free battery with liquid electrolyte (wet battery).   WARNING Do not check or charge batteries that have a visual indicator that is bright yellow. Jump starting must ...