Volkswagen Golf Service & Repair Manual: O-ring
| Use only O-rings that are resistant to refrigerant R134a and
related refrigerant oils. O-rings are no longer colour-coded.
Coloured and black O-rings are used. |
| Check that the O-rings used have the correct internal
diameters. |
| Before installing, moisten O-rings lightly with refrigerant
oil (PAG oil). |
 Note
| When purging components with compressed air and nitrogen,
always collect the gas mixture exiting the component with
suitable exhaust gas extraction equipment (workshop fume
extractor). |
| After completion of repair work screw sealing caps (with
seals) onto valve and service connections. |
| Before operating the air conditioning system. Check the
vehicle-specific charge quantities
→ Rep. gr.87. |
| Do not top up a charged refrigerant circuit; discharge
refrigerant present and recharge system. |
|
Observe instructions specific to the workplace;
→ Volkswagen ServiceNet; Handbooks; Service handbook;
Environmental protection. Refrigerant from air
c ...
After installing a new air conditioner compressor or filling
with fresh refrigerant oil (e.g. after blowing out refrigerant
circuit), turn compressor pulley 10 r ...
Other materials:
Warning lamp
First read and observe the introductory information
and safety warnings
Display
Possible cause
Solution
Bonnet not closed properly
Do not drive
on!
Close bonnet.
Several warning and indicator lamps will light up ...
General notes
Mobile online services are available only in conjunction
with a radio/RNS -RX1-.
For vehicles equipped with a telephone, the telephone
functions are integrated into the emergency call module control
unit and communication unit -J949-.
...
Introduction
This chapter contains information on the following subjects:
→ Attaching the mounts and roof carrier
→ Loading the roof carrier
The roof of the vehicle has been designed for optimum aerodynamic effect. It
is therefore no longer possible to attach conventional roof carrie ...
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Basics for working on refrigerant circuit
Before operating the air conditioning system after recharging with
refrigerant