Audi A4: Communication
Audi A4 (B9) 2016-2026 Service Manual / Electrical System / Communication
- Infotainment System
- Sound System
- Antenna Systems
- Telephone System
- Navigation System
- Rearview Camera System
- Multifunction Steering Wheel
- Connection for External Multimedia Devices
- Rear Seat Entertainment System (RSE)
- Peripheral Camera
- Mobile Online Services
READ NEXT:
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
SEE MORE:
Electrically Driven A/C Compressor, Rinsing (Remove Refrigerant Oil)
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.
- Individuals with electronic/medical life- and health sustaining
machines in or on their person canno
Software update
Introduction
Applies to: vehicles with software update
You can update your vehicle's software.
The functions depend on the country and vehicle
equipment:
Update through the online system update
Map material update for the navigation system
Have the software update performed by an authorized
Aud
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