Audi A4 Owners & Service Manuals

Audi A4: Electrical System

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 Communication

 Infotainment System

 Overview - Infotainment System

Overview - Infotainment System, MMI Radio Plus, 18E Information Electronics Control Module 1 -J794- with integrated CD player/SD card reader in the glove compartment Multimedia System Control Head

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 Setting the central locking system

You can adjust the central locking system to your preferences. The settings depend on the vehicle equipment. Applies to MMI: Select on the home screen: VEHICLE > Settings & Service > Central locking. Door unlocking you select All, all doors and the luggage compartment lid will be un

 Connections for Quick-Release Coupling on Refrigerant Circuit

General Information Only valves and connections that are resistant to refrigerant R134a and refrigerant oil must be installed. Different connections (outer diameter) for high pressure and low pressure side. Discharge the refrigerant circuit before removing valves or valve inserts. Always scr

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