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:
Front brakes
The type of brake system installed in the vehicle is
indicated among other things by the corresponding PR number on
the vehicle data sticker.
The vehicle data sticker can be found in the spare wheel
well and in the service schedule.
...
Removing and installing turn signal bulb
Note
Removal and installation are described for the left side.
Removal and installation on the right side are carried out in
the same way.
Removing
–
Remove tail light cluster on body
& ...
Nuts and bolts
Loosen and tighten bolts and securing nuts for covers and
housings diagonally.
Avoid canting particularly sensitive parts such as comtrol
motor with control unit. Loosen and tighten them diagonally in
stages.
...
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