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:
Changing a blown fuse
Fig. 232 Blown fuse: A: flat blade fuse,
B: JCASE® fuse
Fig. 233 Remove or insert fuse with plastic
pliers: A. flat blade fuse, B. JCASE® fuse
First read and observe the introductory information
and safety warningsPreparation
Switch off the ignition, the lights and all electrical co ...
Safety precautions when working on high-voltage system
Danger to life due to high voltage
The high-voltage system is under high voltage. There is a risk of
severe or fatal injury due to electric shock.
–
Persons with life-preserving or other electronic medical devices in
or on their body must not perf ...
Searching for leaks in refrigerant circuits using leak detector -V.A.G 1796
Note
Small leaks can be detected with, for example, an electronic
leak detector.
–
Evacuate refrigerant circuit using an air conditioner
service station
→ Chapter.
Note
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Expansion valve
Pipes and hoses in refrigerant circuit