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
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Electronic Stabilization
Control
Description
Electronic Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and
improves driving stability. ESC detects critical situations,
such as if the vehicle is oversteering or
understeering, or if the wheels are spinning.
The brakes are applied or the motor t
Battery Charger -VAS5903- Support Mode
General Information
The support mode provides the vehicle electrical system with
voltage when the Battery -A- is removed or disconnected.
For more information. Refer to the Battery Charger -VAS5903-
Operating Instructions.
The support mode is used for the following situations:
Vehicle electrical
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