Volkswagen Golf Service & Repair Manual: Important repair notes on air conditioning
| Air conditioning systems designed for refrigerant R12 must
not be charged with refrigerant R134a until specific conversion
measures have been performed
→ Chapter. |
| The refrigerant oils specifically developed for R134a
refrigerant circuits must never be mixed with the refrigerant
oils specifically developed for R12 refrigerant circuits. |
| Air conditioner service stations which come in contact with
the refrigerant must be used only for the intended refrigerant. |
| Components for R134a refrigerant circuits are identified
with a legend or a green label, or are so designed (e.g. with
different threads), that they cannot be confused with components
for R12 refrigerant circuits. |
| Within the engine compartment, on the bonnet catch striker
plate or in the plenum chamber there is an information plate
which states what refrigerant is used. |
| Different refrigerants must never be mixed together. |
 Note
| When working on the refrigerant circuit please refer to the
information listed under “Safety precautions”
→ Chapter and “Basic procedures for working on
refrigerant circuits”
→ Chapter. |
|
Chlorofluorocarbon (CFC) is no longer used as a refrigerant
in the automotive sector.
R12Converting refrigerant circuits from refrigerant R12 to
...
Other materials:
Cleaning injectors
Special tools and workshop equipment
required
Ultrasonic cleaner -VAS 6418-
Mounting plate for injection modules -VAS 6418/1-
Cleaning fluid
→ Electronic Parts Catalogu ...
Assembly overview - rear brakes
Assembly overview - rear brakes:
Note
Use the brake filling and bleeding equipment -VAS 5234- to
draw off brake fluid from the brake fluid reservoir.
Before removing a brake caliper or disconnecting ...
Assembly overview - rear brake caliper
When carrying out repairs, install all parts supplied in
repair kit.
Use only methylated spirits for cleaning the brake.
New brake calipers are filled with brake fluid and are
pre-bled.
...
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Retrofitting refrigerant circuit from R12 refrigerant to R134a refrigerant