Volkswagen Golf Service & Repair Manual: Trade names and designations
| Refrigerant R134a is currently available under the following
trade designations: |
 Note
| Other trade designations may be used in other countries. |
| Among the large selection of various refrigerants, only this
one may be used for vehicles. The designations Frigen or Freon
are trade names. They apply also to refrigerants which must not
be used in vehicles. |
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Colour
Like water, the refrigerant is colourless both in the vapour state and the
liquid state. Gases are invisible. Only the boundary layer between gas and
liquid is visible. (Fluid level in indicator tube of charging cylinder for
bubbles in sight glass.) Liquid refrigerant R134a may appear coloured (milky) in
a sight glass. This cloudiness is caused by partially dissolved refrigerant oil
and does not indicate a fault.
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 ...
Other materials:
Safety instructions for using extraction and charging equipment
Before connecting the charging system to the air
conditioning system, make sure that all existing shut-off valves
are closed.
Before the charging equipment is decoupled from the air
conditioning system, ensure that the process has ...
Setting the gloss level of HS clear coats and HS top coats
Issued 04.2013
The gloss level of HS clear coats and HS top coats is set by
mixing them with matting additive -LVM 769 810 A2- for plastic
and metal substrates.
The information on the factors that influence gloss level
...
Removing and installing door handle
Note
Removal and installation are described only for the right
door handle. The right side is similar.
Removing
General information and work instructions for the door handle
ke ...
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Vapour pressure