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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 Predictive control

Applies to: vehicles with Audi adaptive cruise control and efficiency assist With predictive control, efficiency assist adapts the set speed in adaptive cruise control (1), fig. 108 based on detected speed limits and the upcoming route. Once the system no longer detects any incidents ahead, adaptive

 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 following is responsible for monitoring the electrical system: Energy Management Control Module -J644- or

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