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:

Tread depth and wear indicators
Fig. 147 Tyre tread: wear indicators First read and observe the introductory information and safety warningsTread depth Difficult driving situations demand the deepest possible tread depth for the tyres and the same tread depth for the tyres on the front and rear axles. This applies in pa ...

Overview - Cigarette Lighter -U1-
  Caution Using force to remove cigarette lighter sockets without illumination can result in damage to the mounting sleeve retainers. The Cigarette Lighter Release Tool -T40148- can o ...

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 ...