Audi A4 Owners & Service Manuals

Audi A4: Communication

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 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

 Component Location Overview - Infotainment System

1 - Bracket 2 - Information Electronics Control Module 1 -J794- Connector assignment. Refer to → Wiring diagrams, Troubleshooting & Component locations. Removing an

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 Door B-Pillar Trim, Removing and Installing

B-Pillar Door Trim, Removing and Installing, Front Removing - Move the door window into the "open" position. - Remove the window frame trim panel. Refer to → Body Interior; Rep. Gr.70; Front Door Trim Panels; Window Frame Trim Panel, Removing and Installing. - Remove

 Expansion Valve

The expansion valve atomizes the streaming refrigerant and controls the flow quantity so that the vapor is gaseous only at the evaporator outlet, depending on the heat transmission.   Note Be sure to use the correct part number when replacing the expansion valve. Refer to the Parts Catalo

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