Audi A4: A/C Service Station, Connecting
Audi A4 (B9) 2016-2026 Service Manual / Heating, Ventilation & Air Conditioning / A/C Service Station, Connecting
- General Information
- Service Station, Connecting with Connections on Low- and High Pressure Side of Refrigerant Circuit
- Service Station, Connecting with No Connection on Low- and High Pressure Side of Refrigerant Circuit
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General Information
Vehicles with a High Voltage System (Hybrid Vehicles)
Extremely Dangerous Due to High-Voltage
The high-voltage system is under high-voltage. Death or serious
bodily injury by electric shock.
- I
Service Station, Connecting with Connections on Low- and High Pressure Side
of Refrigerant Circuit
Servicing Station, Connecting for Measuring and Testing
- Turn off the ignition.
- Connect the service station to the power supply.
- Connect the quick-release coupling adapter to the c
Service Station, Connecting with No Connection on Low- and High Pressure
Side of Refrigerant Circuit
General Information
On the following vehicles, no service connection is provided
for the service station on the low-pressure side of the
refrigerant circuit; adapters must be used to connect the
se
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Refrigerant Circuit Pressures and Temperatures
General Information
Caution
When performing work on refrigerant circuit, observe
all generally applicable safety precautions and pressure
container regulations.
The pressures and temperatures in the refrigerant circuit
depend on the current operating conditions (such as engine RPM,
cool
A/C Compressor Regulator Valve -N280-, Removing and Installing
Note
Certain functions on the A/C Compressor Regulator Valve
-N280- (for example, a stuck valve or a disruption in the coil)
can lead to a complaint regarding the A/C compressor (A/C system
doesn't cool, the evaporator ices over, etc.). If the cause is
with the A/C Compressor Regulator
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