Audi A4 Owners & Service Manuals

Audi A4: A/C Service Station, Connecting

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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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 Expansion Valve

The expansion valve atomizes the streaming refrigerant and controls the flow quantity so that the vapor is gaseous only at the evaporator outlet, depending on the heat transmission.   Note Be sure to use the correct part number when replacing the expansion valve. Refer to the Parts Catalo

 Mobile Online Services

Overview - Mobile Online Services The mobile online service (1W3) consist of the eCall, connected Gateway, and the Data Bus on Board Diagnostic Interface -J533-. The Data Bus on Board Diagnostic Interface -J533- is installed under the rear bench seat for crash safety. The Data Bus on Board Diagn

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