Audi A4 (B9) 2016-2026 Owner's Manual
Owners Manual for fith generation Audi A4 (also known as Typ B9). Here you can find important information about your car, various tips and suggestions, and and critical warnings of your vehicle. In this manual is available detailed guide about your built-in Navigation System, Audi connect, Radio, Telephone, Instrument cluster and etc... In Maintenance and Care chapter you can find essential tips for looking after your vehicle.
In this manual, Audi provides important information,
tips, suggestions, and warnings for using
your vehicle. "Audi" refers to AUDI AG, the respective
importer in a country, as well as joint
ventures.
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Retrofitting Radio Systems
General Information
Before installing radios and telephone systems (radio
systems), disconnect the negative terminal of the Battery -A-.
Refer to
→Electrical Equipment; Rep. Gr.27.
Use the applicable wiring diagrams. Refer to
→ Wiring diagrams, Troubleshoo
Switching the compass on and off
Applies to: vehicles with digital compass
Fig. 55 Rearview mirror: digital compass is switched on
To turn the compass on or off, press the button
(1) until the compass display in the mirror turns
on or off.
The digital compass only works when the ignition
is tu