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:

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 A/C service station and do not extract the refrigerant. ...

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 ...

Wheel Mounting, Position of Anti-Theft Wheel Bolts on Steel Wheels
  Caution It is absolutely necessary to maintain the position of the anti-theft wheels bolts to the tire valve on steel wheels.     The an ...