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:
Hot air blower, 220 V / 50 Hz -VAS 1978/14-
Caution
When shrink-fitting, take care not to damage any
other wiring, plastic parts or insulating material with
the hot air blower.
Observe the operating instructions of the hot ai ...
Removing and installing battery, vehicles without high-voltage system
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Torque wrench -V.A.G 1783-
...
Cleaning Cameras and Sensors
To ensure the various Autopilot components can provide
information that is as accurate as possible, keep them
clean and free of obstructions, condensation, or damage
(see Cleaning).
Condensation can form inside the camera enclosures,
especially if you park your vehicle outside in cold or wet
c ...
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Retrofitting refrigerant circuit from R12 refrigerant to R134a refrigerant