Audi A4: Customer information
Audi A4 (B9) 2016-2025 Owner's Manual / Customer information
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Transmitted information
Data collection
Applies to: vehicles with data collection
Depending on the country, Audi may collect data
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and product optimization, public safety, provis
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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 engine. The
Battery -A- also acts as a power reserve for the entire vehicle
electrical system.
Visual Inspection
WARNING
Risk of injury. Follow all warning messages and
safety precautions. Refer to
→ Chapter "Warnings and Safety Precautions".
Before any extensive measurements are taken, visually
inspect the exterior of the battery, the connections, and the
secure installation of the Battery
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