VW Polo manuals

Volkswagen Polo Service & Repair Manual: A/C Service Station, Working with

Refrigerant Circuit
A/C System Repair Information An A/C system made for refrigerant R12 must not be filled with refrigerant R134a without making modifications to the refrigerant circui ...

Important Information when Working with the A/C Service Station
  Caution If it is suspected that chemicals were added to the refrigerant circuit to seal leaks, do not connect the ...

Other materials:

Engine oil specification
First read and observe the introductory information and safety warningsThe engine oil used must correspond exactly to specifications. The correct engine oil is important for the function and service life of the engine. A special high quality multigrade oil has been filled at the factory and t ...

Charge Factor
A vessel must have space for vapor as well as liquid. As the temperature rises, the liquid expands. The space filled with vapor decreases. At a certain point, there will only be liquid in the vessel. Beyond this, even a slight increase in temperature cau ...

Refrigerant Still in Circuit
Discharge the refrigerant circuit. –  Remove malfunctioning component, flush with compressed air, collect escaping refrigerant oil. –  The new component is to be filled with the amount of refrig ...

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