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:

Battery Charger -VAS5900- Maintenance Charging
  Note If the battery is discharged by an electrical consumer during maintenance charging, the Battery Charger -VAS5900- automatically supplies the appropriate charge. Maintenance charging can be performed without time ...

Technical Requirements
Factory-Installed Trailer Hitch If the vehicle was already delivered from the factory with a trailer hitch, all of the technical and legal requirements for towing a trailer have already been taken into account. Note that a »13-pin« trailer ...

Coolant specification
First read and observe the introductory information and safety warningsThe cooling system is filled at the factory with a mixture of specially prepared water and at least 40% coolant additive G 13 (TL-VW 774 J). The coolant additive is dyed purple. This mixture of water and coolant additive ...