Audi A4 Owners & Service Manuals

Audi A4: Electrical Equipment General Information

Audi A4 (B9) 2016-2025 Service Manual / Electrical System / Electrical Equipment General Information

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 Battery, Starter, Generator, Cruise Control

 Battery

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 eng

 Test Sequence

Battery, Checking, Vehicles with Battery Monitoring Control Module J367 or Energy Management Control Module J644 and Data Bus On Board Diagnostic Interface J533 In certain model series the followi

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 System settings

Introduction General settings are described in this chapter. You can find specific settings in the chapters about those settings. The available settings depend on the vehicle equipment. Date and time Applies to: MMI: Select on the home screen: SETTINGS > General > Date & time. Possibl

 Finishing

Reinstall any covers on the wheel bolts that were removed. Store the vehicle tool kit in its designated place. If the removed wheel does not fit in the spare wheel well, store it securely in the luggage compartment. Check the tire pressure on the installed wheel as soon as possible. Corre

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