Volkswagen Golf Service & Repair Manual: O-ring
| These O-rings seal the joints between the individual
components of the refrigerant circuit. |
| Use only seals that are resistant to refrigerant R134a and
its associated refrigerant oils. This is assured by using
genuine replacement parts. |
| Check that diameters -a- and
-b- are correct. |
| Before fitting a seal, coat it lightly with refrigerant oil. |
 Note
| The colour coding of O-rings for R134a refrigerant circuits
has been discontinued. Coloured and black O-rings are used. |
|
|
|
The expansion valve atomises incoming refrigerant and
regulates the flow so that, depending on the heat transport, the
vapour does not become a gas until it reaches t ...
The mixture of refrigerant oil and refrigerant R134a attacks
certain metals (e.g. copper) and alloys and dissolves certain
hose materials. Therefore, always use genui ...
Other materials:
Checking holding 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
...
Removing and installing hinges
Special tools and workshop equipment
required
Note
Removal and installation are described for the right
hinge only. Removal and installation of the left hinge are
similar.
...
Wiring harness repair set -VAS 1978A-
The new wiring harness repair set -VAS 1978A- allows optimal
repair quality to be achieved in the area of vehicle electrics.
Using the new pliers, repairs to connectors and wiring open
circuits can be carried out. To do this, complete repair wire
section ...
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Expansion valve
Pipes and hoses in refrigerant circuit