Audi A4: Switches and Sensors on Refrigerant Circuit and Connections
Audi A4 (B9) 2016-2025 Service Manual / Heating, Ventilation & Air Conditioning / Refrigerant Circuit General Information / Switches and Sensors on Refrigerant Circuit and Connections
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A/C Refrigerant High Pressure Switch -F23-
Note
Switch pressures, removing and installing switches as well
as switch arrangement and version. Refer to vehicle specific
refrigerant circuit
→ Heating, Ventilation and Air Condit
A/C Pressure Switch -F129-
Note
Switch pressures, removing and installing switches as well
as switch arrangement and version. Refer to vehicle specific
refrigerant circuit
→ Heating, Ventilation and Air Condit
A/C Pressure/Temperature Sensor
There are different versions of this sensor with different
functions and with different names. For exact name, allocation
and notes doe the respective function, refer to
→ Heating, Ventilatio
SEE MORE:
Cylinder Block, Belt Pulley Side
Overview - Cylinder Block, Belt Pulley Side
All components are described under:
→ Servicing - 4-Cylinder 2.0L 4V TFSI Engine; Rep. Gr.13; Cylinder Block Belt
Pulley Side; Overview - Cylinder Block Belt Pulley Side.
Ribbed Belt, Removing and Installing
All procedures are described
Flushing Circuit Block Diagrams
Note
The arrows in the following illustrations show the direction
of refrigerant flow during flushing (refrigerant flows in
opposite direction of flow when Air Conditioning (A/C) system is
in operation while flushing, therefore the high pressure side of
the A/C service system is connec
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