Volkswagen Golf Service & Repair Manual: Pressures and temperatures in the refrigerant circuit
WARNING
| When working on the refrigerant circuit, observe
generally applicable safety rules and the Regulations
for Pressure Tanks. |
|
| The pressures and temperatures in the refrigerant circuit
depend on the momentary operating conditions (e.g. engine speed,
speed 1, 2, or 3 of radiator fan, engine temperature, whether
air conditioner compressor is on or off) as well as
environmental influences (e.g. ambient temperature, humidity,
required cooling output). |
| In vehicles with air conditioner compressor regulating valve
-N280-, the pressure on the low-pressure side is varied by
activating the valve. |
| Therefore, the values given in the following tables may only
be considered as guidelines. They occur at an engine speed of
1,500 to 2,000 rpm and an ambient temperature of 20°C after
about 20 minutes. |
| The locations of connections provided for pressure
measurements can be found in the vehicle-specific coolant
circuits. |
| At 20°C and with the engine stopped, the refrigerant circuit
will adjust itself to a pressure of 4.7 bar positive pressure
→ Chapter. |
|
|
|
Function:
The evaporator output temperature sender -G263- or
evaporator temperature sensor -G308- reads the temperature
downstream from the eva ...
A- low-pressure side of the refrigerant circuit.
B- high-pressure side of the refrigerant circuit.
...
Other materials:
Removing and installing glove compartment opener
Special tools and workshop equipment
required
Torque wrench -V.A.G 1783-
Removing
–
Open glove compartment.
–
Unscrew bolt ...
Installing engine
Procedure
Engine/gearbox assembly secured to engine support T10497.
Note
Renew bolts that are tightened with specified tightening
angle.
Renew self-locking nuts and bolts ...
Removing and installing door lock
Special tools and workshop equipment
required
Torque wrench -V.A.G 1331-
Note
Removal and installation are described only for the ...
© 2016-2026 Copyright www.vwgolf.org
Evaporator output temperature sender -G263- or evaporator temperature sensor
-G308
Refrigerant circuit with expansion valve