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:
Displays
Fig. 178 In the instrument cluster display:
examples of recognised speed limits or overtaking restrictions with accompanying
additional signs
First read and observe the introductory information
and safety warnings
Traffic sign recognition texts
Cause and solut ...
Pedals
Fig. 132 Pedals in vehicles with a manual
gearbox: ① accelerator, ② brake pedal, ③ clutch pedal
Fig. 133 Pedals in vehicles with an automatic
gearbox: ① accelerator, ② brake pedal
First read and observe the introductory information
and safety warnings The operation and freedom ...
Repair paintwork system for matt-finished vehicles
Issue 04.13
The repair paintwork system for matt-finished vehicles is
outlined below. Area of use: larger areas/full painting
operations
Application
Metal substrate
...
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Expansion valve
Pipes and hoses in refrigerant circuit