VW Polo manuals

Volkswagen Polo Service & Repair Manual: A/C Programmer -J127

This programmer switches the refrigerant flow direction through the second evaporator if the temperature on the cooling fins on the second evaporator lowers to the freezing point for water (icing protection).
 

A/C Programmer -J127

Electrical Components Not on Refrigerant Circuit
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Coolant Fan Control Module -J293
  Note There are different construction styles.     This control module switches on and off the A/C clutch ...

Other materials:

Test Requirements
Radiator and condenser are clean (clean if necessary). The ribbed belt for the A/C compressor and alternator tensioned correctly. All air ducts, covers and seals are OK and installed correctly. ...

Wear Spots
Wear spots are caused by a hard stop with locked wheels whereby the rubber compound is abraded from the contact patch. When the tires slide across the road surface, frictional heat is generated which reduces the abrasion resistance on the ...

Refrigerant Circuit Component Arrangement
  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 ...

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