Volkswagen Golf Service & Repair Manual: Distribution of the refrigerant circuit components and their influence on
the high-pressure and low-pressure sides
| On the high-pressure side, there are the condenser, the
receiver and the restrictor or expansion valve that acts as the
separation between the high-pressure fluid and low-pressure
fluid sides. |
| High pressure is created because the restrictor or expansion
valve forms a restriction and holds back the refrigerant,
leading to increased pressure and temperature. |
| Excessive pressure results if the circuit is filled with too
much refrigerant or refrigerant oil, or the condenser is dirty,
the radiator fan is defective, there is a blockage in the system
or there is moisture in the refrigerant circuit (causing the
restrictor or expansion valve to ice up). |
| On the low-pressure side, there are the evaporator, the
reservoir, the temperature sensor for the evaporator and the air
conditioner compressor that acts as the separation between the
high-pressure and low-pressure gas sides. |
| A loss of pressure in the system can be due to loss of
refrigerant, restrictor or expansion valve failure (not creating
a restriction), defective air conditioner compressor or an
iced-up evaporator. |
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Caution
Non-authorised tools or materials (e.g. leak
inhibitor additive) may cause damage or adversely
influence t ...
The air conditioner compressor is driven by a V-belt from
the engine.
An electromagnetic clutch is fitted to the air conditioner
compressor. Wh ...
Other materials:
Removing and installing mounting bracket
Special tools and workshop equipment
required
Removing
Note
Removal and installation are only described for the left
door handle bracket. The right side is similar.
...
Checking tyres
As tyre damage can have serious consequences, you and the
driver should regularly check the tyres to identify any problems
at an early stage.
Damaged tyres cannot withstand driving conditions such as
high speed, long distances, sporty dr ...
Noises from shock absorbers
Shock absorbers are often replaced because of noises
(rumbling, etc.) experienced by the customer. Inspections on the
test rig and in the vehicle have shown that in approx. 70 % of
these cases there is no case for complaint. The replacement was
not justi ...
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Refrigerant circuit components
Air conditioning system compressor with magnetic clutch