Audi A4 Owners & Service Manuals

Audi A4: 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

 Component Location Overview - Infotainment System

1 - Bracket 2 - Information Electronics Control Module 1 -J794- Connector assignment. Refer to → Wiring diagrams, Troubleshooting & Component locations. Removing an


 Trailer Hitch

Overview - Trailer Hitch 1 -  Information Label On the left side of the body at the rear 2 -  Towing Recognition Control Module -J345- Removing and installing. Refer to → Chapter "Towing Recognition Control Module -J345-, Removing and Installing". 3 -  Tra


Battery General Information To guarantee a long service life, the Battery -A- must be checked, serviced and maintained as described in this manual. The Battery -A- supplies the power to start the engine. The Battery -A- also acts as a power reserve for the entire vehicle electrical system.  

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