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:
Diesel particulate filter
First read and observe the introductory information
and safety warnings The diesel particulate filter filters out soot particles
in the exhaust gas. The soot particles are collected in the filter and burnt off.
To assist in this combustion process, Volkswagen recommends that you avoid making ...
Checking fuel pressure, engine code CWVA
Special tools and workshop equipment required
Removal wedge -3409-
Pressure tester -VAS 6550-
Connector cable -VAS 6550/3-3-
Connector cable -VAS 6550/3-4-
Vehicle diagnostic tester
...
Assembly overview - towing bracket
Note
Minor differences will be encountered on removal and
installation, depending on version.
The specified torques refer only to factory-installed towing
brackets.
Request torque spe ...
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