Volkswagen Golf Service & Repair Manual: Charging refrigerant circuit using air conditioner service station
WARNING
| High-voltage on high-voltage system. Danger of
electric shock on air conditioner compressor! |
| Models with a high-voltage system: now de-energise
the high-voltage system
→ Electric drive; Rep. gr.93. |
|
| Always follow the procedure described in the user's manual
for your air conditioner service station. |
| Before charging the refrigerant, check the refrigerant oil
quantity
→ Rep. gr.87. |
| The entire refrigerant charging quantity can be introduced
either into the high-pressure or the low-pressure side. |
| Charging the refrigerant circuit |
| – |
Evacuating refrigerant circuit using air conditioner service
station
→ Chapter. |
| – |
Turn handwheel of quick-release coupling adapters outwards
(close). |
| – |
Allow refrigerant to flow into charging hose. |
| – |
Turn handwheel of quick-release coupling adapter inwards (do
not overstress the valve) and charge system with prescribed
quantity of refrigerant. |
| – |
Switch off air conditioner service station. |
 Note
| If the air conditioner compressor was removed, the V-belt
pulley /freewheel must be turned by hand approx. 10 times prior
to initial operation. This does not apply for the electrical air
conditioner compressor. This prevents any damage occurring from
a fluid hammer in the air conditioner compressor when the air
conditioning system is switched on for the first time. If there
is oil in the cylinder of the air conditioner compressor, it
will be forced out by the rotation. |
| – |
Start with engine with air conditioner compressor switched
off (if it is the type with a magnetic clutch). |
| – |
Set air conditioner compressor to lowest possible setting;
select "ECON" mode or "A/C Off" (if version without magnetic
clutch, but with regulating valve). |
| – |
Wait until idling speed has stabilised. |
| – |
Switch air conditioner compressor on and let system run for
at least 2 minutes with engine idling. |
| – |
If necessary, check pressures in refrigerant circuit using
air conditioner service station. |
| – |
Turn out handwheel on quick-release coupling adapter. |
| – |
Detach the charging hose from the refrigerant circuit. |
| – |
Screw on sealing caps again. |
|
Always follow the procedure described in the user's manual
for your air conditioner service station.
The procedure described here is that for a ...
Note
If the air conditioner compressor was removed, the V-belt
pulley /freewheel must be turned by hand approx. 10 times prior
to initial operation. Th ...
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Evacuating refrigerant circuit using air conditioner service station
Bringing air conditioning system into service after charging