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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 Door Arrester, Removing and Installing

Removing - Tape off the B-pillar in the door arrester area using adhesive tape, so that the paint will not be damaged. - Move the door window into the "closed" position. - Remove the rear door trim panel. Refer to → Body Interior; Rep. Gr.70; Rear Door Trim Panels;

 Quick-Release Connections on Refrigerant Lines

  WARNING The quick-release coupling connectors may be unlocked and opened only if the refrigerant circuit is empty.   Note This illustration shows the quick-coupling connection with a refrigerant pipe with an inner heat exchanger that is installed in the Audi A4 from MY 2008 and

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