VW Polo manuals

Volkswagen Polo Service & Repair Manual: A/C System Operation

The temperature in the passenger compartment depends on the amount of heat radiated through the windows and conducted by the metal parts of the body. In hot weather it is possible to achieve a more comfortable temperature for the passengers by pumping off some of the heat.
As heat spreads into cooler areas, the passenger compartment is equipped with a unit for generating low temperatures. In the unit, refrigerant is constantly evaporated. The heat required for this is extracted from the air flowing through the evaporator.
After absorbing heat, the refrigerant is pumped off through the compressor. The action of the A/C compressor increases the heat content and temperature of the refrigerant. Its temperature is then substantially higher than that of the surrounding air.
The warm refrigerant flows to the condenser. There, the refrigerant dissipates its heat through the condenser to the surrounding air due to the temperature difference between the refrigerant and air.
The refrigerant thus acts as a heat transfer medium. As it is to be reused, the refrigerant is returned to the evaporator.
For this reason all air conditioning systems are based on the refrigerant circulation principle. There are however differences in the combination of aggregates.
   
Comfort
Being comfortable while driving leads to better concentration and safe driving. Air conditioning makes drivers and passengers more comfortable when temperatures or hu ...

Safety Precautions
General Safety Precautions As per VBG 20, German industrial liability insurance association. Follow th ...

Other materials:

Commercially Available Tools and Materials
  Note This list outlines the testers, tools and materials required for expert refrigerant circuit repair work.   Caution Non-approved tools or materials such as leak sealing additiv ...

Hitching and connecting the trailer
First read and observe the introductory information and safety warnings Emergency breakaway cable Always fasten the trailer's emergency breakaway cable properly to the towing vehicle. Leave enough slack in the emergency breakaway cable so that the vehicle can still drive around corners. How ...

Securing mounts, roof bars or load carrying system
Fig. 90 Securing points for mounts or roof bars (both sides) A: for 2-door vehicles without roof railing. B: for 4-door vehicles without roof railing. C: for vehicles with roof railing First read and observe the introductory information and safety warnings Mounts or roof bars serve as the b ...

© 2016-2019 Copyright www.vwpolo.net