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:

One-Part Anti-Corrosion Primer
Definition: One-Part Anti-Corrosion Primer -LLS MAX 003 M2-, reddish brown Edition 03/2013 Product Description The One-Part Anti-Corrosion Primer -LLS MAX 003 M2- is a ...

Aqua Premium System, Touch-Up System for Two Layer Colors
Edition 04/2013 Product Description/Objective To achieve an optically flawless color shade transition in the blended area or adjacent parts, for example fender/door. Application Instructions ...

Introduction
This chapter contains information on the following subjects:  → Warning lamp and coolant temperature display  → Coolant specification  → Checking the coolant level and refilling coolant Never carry out any work on the engine coolant system if you are not familiar with t ...

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