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. |
|
|
|
| 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:
Removing and installing C-pillar trim, saloon
Note
Removal and installation are described for the left
vehicle side. Follow same instructions for the right side as
appropriate.
Special tools and workshop equipment
required
...
Removing and installing crash bar
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331
Removing
–
Remove knee airbag with igniter
...
Wheel cover
Fig. 220 Removing the wheel covers
First read and observe the introductory information
and safety warningsRemoving the wheel covers
Take the box spanner and wire hook from the vehicle toolkit.
Insert the wire hook into one of the holes in the wheel cover.
Push the box spanner thr ...
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Vapour pressure
Water content