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:
Locking and unlocking the vehicle from the inside
Fig. 29 In the driver door: central locking
button
First read and observe the introductory information
and safety warnings
Press the
button :
Unlocks
the vehicle.
Locks the
vehicle.
The central locking b ...
Electronic immobilizer
First read and observe the introductory information
and safety warnings The immobilizer helps to prevent the engine from being
started and driven with an unauthorised vehicle key.
There is a chip in the key. It automatically deactivates the immobilizer when
the vehicle key is inserted into ...
Comfort
A basic requirement for concentrated and safe driving is the
feeling of comfort in the passenger compartment. Especially when
it is hot and humid, comfort can be attained only through the
use of air conditioning. Of course, open windows, an open
sunroof ...
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Expansion valve
Pipes and hoses in refrigerant circuit