Audi A4 Owners & Service Manuals

Audi A4: Battery, Starter, Generator, Cruise Control

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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 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

 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, visuall

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 Mobile Online Services

Overview - Mobile Online Services The mobile online service (1W3) consist of the eCall, connected Gateway, and the Data Bus on Board Diagnostic Interface -J533-. The Data Bus on Board Diagnostic Interface -J533- is installed under the rear bench seat for crash safety. The Data Bus on Board Diagn

 Introduction

Applies to: vehicles with telephone You can operate various telephone functions easily through the MMI in your vehicle. Depending on the country and the vehicle equipment, the following options may be available: Connecting a cell phone with Bluetooth Using two telephones Using the Audi phone bo

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