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
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Operating
Fig. 4 Driver information system display
Fig. 5 Left side of multifunction steering wheel
Information is organized within various tabs (1) in
the instrument cluster. The tab contents are displayed
in the central area (2).
Requirement: the ignition must be switched on.
Selecting a tab
Press the
Control Module/Digital Sound System Amplifier, Removing and Installing
Special tools and workshop equipment required
Fiber-Optic Repair Set - Connector Protective Caps
-VAS6223/9-.
The Digital Sound System Control Module -J525--1-
is located behind the left luggage compartment side trim panel.
Note
If replacing the control module, select the "Replace contr
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