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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Starter >> Charging System (Battery, Starter And Generator) & Cruise Control (2 Of 2) >> 27 Starter, Generator And Cruise Control >> Battery >> General Information

General Information

To guarantee a long service life, the Battery -A- must be checked, serviced and maintained as described in this service information.

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.

NOTE:

Refer to Self Study Program.

WARNING:

Risk of injury. Follow all warning messages and Safety Precautions. WARNINGS AND SAFETY PRECAUTIONS 

CAUTION:

In order to prevent damage to the Battery -A- or vehicle, observe the battery type information. Refer to BATTERY TYPES .