Volkswagen Polo Service & Repair Manual: Electrical Components Not on Refrigerant Circuit

A/C Compressor Regulator Valve -N280

  Note For switching pressures, removing and installing switches and switch arrangement and version, see vehicle-specific refrigerant circuit. ...

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 fr ...

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 ...

Additional Information Sources
Technical Service Handbook outlining action to be taken to rectify current problems. For the repair manual for model-specific repair work. Refer to → Heating, Ventilation and Air Conditioning; Rep. Gr.87. ...

Release Tool Set -VAS1978/35
The Release Tool Set -VAS1978/35- is used to release the various primary and secondary locking mechanisms on VW-group vehicles. The set consists of 26 different tools which can be used to professionally release or assemble e.g. round connector systems, f ...