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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 Locking Mechanism Trim, Removing and Installing

Special tools and workshop equipment required Trim Removal Wedge -3409- Removing - Unlock the rear seat backrest. - Make sure the button -2- (indicator) is in the "up" position. - Push the tabs in the direction of -arrows- on both sides of the trim using a -3409-. - Remove t

 A/C Compressor Regulator Valve -N280-, Removing and Installing

  Note Certain functions on the A/C Compressor Regulator Valve -N280- (for example, a stuck valve or a disruption in the coil) can lead to a complaint regarding the A/C compressor (A/C system doesn't cool, the evaporator ices over, etc.). If the cause is with the A/C Compressor Regulator

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