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:
Is the smell coming from evaporator or the heat exchanger?
Fishy smell
–
Due to leak in engine's cooling system or in heat exchanger
of heater and air conditioner unit.
Note
If the fishy smell is weaker when the temperature is set to
“cold” or st ...
Radar sensor
Fig. 174 In the front bumper: radar sensor
First read and observe the introductory information
and safety warnings A radar sensor is fitted to the front bumper to monitor
the traffic situation . Vehicles travelling ahead can thus be detected up to a
distance of approximately 120 m.
T ...
Removing and installing driver side footwell cover
Special tools and workshop equipment
required
Torque wrench -V.A.G 1783
Removing
–
Remove bolt -3-.
–
Pull driver sid ...
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Basics for working on refrigerant circuit
Before operating the air conditioning system after recharging with
refrigerant