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:

4-Pin Heated Oxygen Sensor (HO2S), Removing and Installing
  Note Do not repair the heated oxygen sensor wires. Repairing may result in malfunctions. Use the faulty sensor as a guide for installing all of the accompanying attachments, cable ties or marking bands. ...

How to start the engine using jump leads
Fig. 191 How to connect the jump leads when starting vehicles without start/stop system: discharged battery Ⓐ and battery providing assistance Ⓑ Fig. 192 How to connect the jump leads when starting vehicles with start/stop system: discharged battery Ⓐ and battery providing assistance ...

The dangers of assuming an incorrect sitting position
First read and observe the introductory information and safety warnings If the seat belts are not worn or are worn incorrectly, the risk of severe or fatal injuries increases. Seat belts can only provide optimal protection if the seat belt routing is correct. Assuming an incorrect sitting pos ...