Volkswagen Polo Service & Repair Manual: A/C Technology Basic Principles

Additional Information Sources

Technical Service Handbook outlining action to be taken to rectify current problems. For the repair manual for model-specific repair work. Refe ...

Physical Principles

The four known states of water also apply to air conditioning system refrigerants. 1 -  gaseous (invisible) 2&n ...

Other materials:

Checking with Expansion Valve and Receiver/Dryer, with Internally Regulated A/C Compressor
  Note Connecting service station. Refer to → Chapter „Connecting Service Station“. Observe test requirements. Refer to → Chapter „Pressures, Checking“. –  ...

Coolant Fan Control Module -J293
  Note There are different construction styles.     This control module switches on and off the A/C clutch and therefore the A/C compressor. It switches the coolant fan and calculates the pressu ...

Charging, replacing, disconnecting and connecting the vehicle battery
First read and observe the introductory information and safety warningsCharging the battery The vehicle battery should be charged by a qualified workshop, as the technology used in factory-fitted batteries requires voltage-limited charging . Volkswagen recommends using a Volkswagen dealership ...