Volkswagen Golf Service & Repair Manual: Air conditioning system compressor with magnetic clutch
| The air conditioner compressor is driven by a V-belt from
the engine. |
| An electromagnetic clutch is fitted to the air conditioner
compressor. When the air conditioning system is switched on, it
transmits the mechanical drive between the V-belt pulley and the
air conditioner compressor drive shaft. |
| A fusible link is incorporated in the air conditioner
compressor V-belt pulley. In the event of stiffness in the air
conditioner compressor, it trips the electromagnetic clutch and
protects the V-belt drive from overload. |
| The air conditioner compressor draws refrigerant gas from
the evaporator, compresses it and sends it to the condenser. |
 Note
| The air conditioner compressor contains refrigerant oil,
which can be mixed with R134a refrigerant at any temperature. |
| The maker's nameplate states the refrigerant for which the
air conditioner compressor is suitable. A valve regulates the
pressure on the low-pressure side within the specified range
(regulation characteristic). |
| So that the air conditioner compressor suffers no damage
when the refrigerant circuit is empty, the magnetic clutch is
disconnected and the regulating valve for the air conditioner
compressor -N280- is no longer activated (the air conditioner
compressor idles with the engine). |
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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 ...
The air conditioner compressor is driven by a V-belt from
the engine.
A shear link is incorporated in the air conditioner
compressor V-belt pul ...
Other materials:
Undercoated areas
Note
Undercoating (stone-chipping protection) applied during repair work
must be identical in appearance and thickness to the original
undercoating.
Water drainage holes must remain clear.
All threaded studs and welded nuts with metric ...
Removing and installing rear tunnel cross-piece
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Removing
–
Loosen rear underbody panel and press downwards slightly
...
Component protection
First read and observe the introductory information
and safety warnings Some electronic components and control units are fitted
with component protection as standard, e.g the radio or navigation system.
Component protection was developed as a protective mechanism in order to:
Prevent any ...
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Distribution of the refrigerant circuit components and their influence on
the high-pressure and low-pressure sides
Air conditioner compressor without magnetic clutch