Volkswagen Golf Service & Repair Manual: Water content
Only very small amounts of water are soluble in liquid
refrigerant. On the other hand, refrigerant vapour and water
vapour mix in any proportion. |
Any water present in the refrigerant circuit will be carried
along as droplets. The dessicant, dessicant bag or dessicant
cartridge in the receiver or reservoir are capable of holding
approx. 7 grams of water before they are full and cannot absorb
any more water. If there is further water in the circuit, it
will flow to the expansion valve jet or to the restrictor and
becomes ice. |
The air conditioning system will stop cooling. |
Water destroys the air conditioner because at high pressures
and temperatures it combines with other impurities to form
acids. |
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Refrigerant is non-flammable. On the contrary, it has a
fire-inhibiting or fire-extinguishing effect. Refrigerant
decomposes when exposed to flames or incandescent surfaces. UV
light can also decompose refrigerants (UV is emitted by electric
arc welding). Products of this decomposition are poisonous and
must not be inhaled. However, these chemicals irritate the
mucous membranes, giving adequate warning of their presence. |
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In its pure state, refrigerant R134a is chemically stable
and does not attack iron or aluminium.
However, impurities such as chlorine compounds in th ...
There must be space both for liquid and vapour in a
container. As the temperature rises, the liquid expands. The
space occupied by the vapour becomes smaller. Eventua ...
Other materials:
Cleaning windows and exterior mirrors
First read and observe the introductory information
and safety warnings Cleaning windows and exterior mirrors
Moisten the windows and exterior mirrors with commercially available, alcohol-based
glass cleaner.
Dry the glass surfaces with a clean chamois leather or a lint-free cloth. Chamois ...
Assembly overview - dash panel insert
1 -
Electrical connector
For dash panel insert
2 -
Dash panel insert -KX2-
With control unit in dash panel insert -J285-.
Dash panel insert must be renewed if warning lamp LED or
illumination ...
Removing and installing oil spray jets
Special tools and workshop equipment
required
Socket -T10545-
Removing
–
Remove noise insulation
→ General body repairs, exterior; Rep. gr.66.
...
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