Audi A4 Owners & Service Manuals

Audi A4: Electrical System

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 Communication

 Infotainment System

 Overview - Infotainment System

Overview - Infotainment System, MMI Radio Plus, 18E Information Electronics Control Module 1 -J794- with integrated CD player/SD card reader in the glove compartment Multimedia System Control Head

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 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

 Underbody Trim Panels, Removing and Installing

Underbody Trim Panel, Removing and Installing, Front Removing - Remove the nuts -arrows-. - Remove the front underbody trim panel -2- from the center underbody trim panel -1-. Installing Install in reverse order of removal. Tightening Specifications Refer to → Chapter "Overview

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