Volkswagen Golf Service & Repair Manual: Effects on metal
In its pure state, refrigerant R134a is chemically stable
and does not attack iron or aluminium. |
However, impurities such as chlorine compounds in the
refrigerant do attack certain metals and plastics. This can lead
to blockages, leaks and deposits on the air conditioner
compressor piston. |
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Critical temperature and critical
pressure |
Up to a gas pressure of 39.5 bar positive pressure
(corresponding to a temperature of 101°C) the refrigerant R134a
remains chemically stable; however, above this temperature the
refrigerant decomposes (see Combustibility). |
|
In an enclosed container that is not completely full,
refrigerant evaporates as vapour at the surface in a quantity
sufficient to form an equilibrium between vapour a ...
Only very small amounts of water are soluble in liquid
refrigerant. On the other hand, refrigerant vapour and water
vapour mix in any proportion.
...
Other materials:
Assembly overview - long noise insulation
Note
The removal and installation procedures may have to be modified
slightly depending on engine fitted.
1 -
Short noise insulation
Removing
–
Remove bolts -2-,
-3- and -4-.
–
Pull out ...
Vapour pressure
In an enclosed container that is not completely full,
refrigerant evaporates as vapour at the surface in a quantity
sufficient to form an equilibrium between vapour and liquid.
This equilibrium develops under pressure and is often called
vapour pressure. ...
Automatic brake intervention
First read and observe the introductory information
and safety warnings The park assist system helps the driver by braking automatically.
The automatic braking does not replace the driver's responsibility for the accelerator,
brake and clutch .
A parking manoeuvre will be interrupte ...
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