VW Polo manuals

Volkswagen Polo Service & Repair Manual: Water Content

Only very small amounts of water are soluble in liquid refrigerant. On the other hand, refrigerant vapor and water vapor mix in any ratio.
Only a small drop of water may get into the refrigerant circuit. The dryer, dryer bag or dryer cartridge contained in the reservoir can absorb approximately 7 grams of water. They are then saturated and cannot absorb any more water. If water is still present in the refrigerant circuit, it flows up to the expansion valve nozzle or restrictor and becomes ice.
The air conditioning system stops cooling.
Water destroys the air conditioner as it combines with other impurities at high pressures and temperatures to form acids.
   

Combustibility

Refrigerant is non-flammable. It actually has a fire resistant or fire extinguishing effect. Refrigerant decomposes when exposed to flames or red-hot surfaces. UV light (occurring for example during electric welding) also causes refrigerant decomposition. The resultant decomposition products are toxic and are not to be inhaled. However, irritation of the mucous membranes provides an adequate and timely warning.

Commercial Names and Designations
Refrigerant R134a is currently available under the following trade names: H-FKW 134a SUVA 134a ...

Charge Factor
A vessel must have space for vapor as well as liquid. As the temperature rises, the liquid expands. The space filled with vapor decreases. At a certain point, there w ...

Other materials:

Ignition lock
Fig. 107 Positions of the vehicle key in the ignition lock First read and observe the introductory information and safety warnings The steering lock can be activated when there is no vehicle key in the ignition lock. Vehicle key positions   Ignition switched off. The vehicle key ca ...

Battery Test, Performing using Battery Tester -VAS6161
Special tools and workshop equipment required Battery Tester -VAS6161-   WARNING Risk of injury. Follow all Warnings and Safety Precautions. Refer to →& ...

Unlocking the tailgate manually
Fig. 158 In the luggage compartment: manual release for the tailgate First read and observe the introductory information and safety warnings If necessary, fold the backrest of the rear bench seat forwards . Remove items of luggage so that you can reach the tailgate from the insid ...

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