Bentley Volkswagen.Golf.Jetta.R32.Official.Factory.Repair.Manual.1999-2005

Pressures, checking on vehicles
Página 5 de 33
+45 C 10.5
Note:
- Temperature of refrigerant circuit
components should be equal to
ambient temperature.
- Pressure will deviate from values
in table if individual components of
refrigerant circuit are warmer or
colder.
- At absolute pressure, 0 bar
corresponds to absolute vacuum.
Normal ambient pressure (positive
pressure) equals 1 bar absolute
pressure. 0 pressure corresponds
to an absolute pressure of one bar
on most pressure gauges
(indicated by -1 bar below 0).
- On vehicles with High Pressure
Sensor G65 for which measured
pressure is displayed in measured
value block, pressure measured
should coincide with values in
table.
Repair Manual, Heating & Air
Conditioning, Repair Group 87 ,
Pressure in refrigerant circuit
lower than indicated in table.
Not enough refrigerant in
refrigerant circuit.
- Determine whether refrigerant
circuit is leaking 00-4,
Refrigerant circuit, tracing leaks
using leak detector V.A.G 1796 .
- Check pressure relief valve.
If pressure relief valve has
responded:
- Check actuation of radiator fans.
- Check for constricted refrigerant
pipe and hose cross-sections
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13/2/2005