The Front Information Display Control Head -J685- (Display) is located in the center of the instrument panel.
- Turn off the ignition and all electrical consumers and remove the ignition key.
WARNING
Danger of unintended engine ignition.
Turn off the ignition and remove the ignition key from the vehicle interior for all work performed on the high voltage vehicle.
Removing
- Remove the MMI screen cover. Refer to → Body Interior; Rep. Gr.70; Instrument Panel; MMI Screen Cover, Removing and Installing.
- Remove the bolts -arrows- from the Front Information Display Control Head -J685--1-.
- Lift the Front Information Display Control Head -J685--1- out of the instrument panel -2- and disconnect the connector on the back.
Installing
- Install in reverse order of removal.
Tightening specifications and installation instructions can be found in the Component Location Overview. Refer to → Chapter "Component Location Overview - Radio".
Information Electronics Control Module 1 -J794-, Removing and Installing
The Information Electronics Control Module 1 -J794- is located inside the instrument panel.
Special tools and workshop equipment required
- If replacing the control module, select the "Replace Control Module" function on the Vehicle Diagnostic Tester.
Use Vehicle Diagnostic Tester.
- Activate the parking brake.
- Turn off the ignition and all electrical consumers and remove the ignition key.
WARNING
Danger of unintended engine ignition
Turn off the ignition and remove the ignition key from the vehicle interior for all work performed on the high voltage vehicle.
Removing
- Insert the two clips from the Radio Removal Tool -T10057- into the slots on the Information Electronics Control Module 1 -J794- until they engage. Points on the grip eyelets of tool face outward.
- Remove the Information Electronics Control Module 1 -J794- from the installation frame.
- Remove the Radio Removal Tool -T10057- by pushing the locking tabs on Information Electronics Control Module 1 -J794-.
- Disconnect all the connectors on the Information Electronics Control Module 1 -J794-.
- Insert the Fiber-Optic Repair Set - Connector Protective Caps -VAS6223/9--1- onto the MOST Bus connector -2-.
Installing
- Connect all connectors.
- Slide the Information Electronics Control Module 1 -J794- into the installation frame until it engages.
Tightening specifications and installation instructions can be found in the Component Location Overview. Refer to → Chapter "Component Location Overview - Infotainment System".
Multimedia System Control Head -E380-, Removing and Installing
Special tools and workshop equipment required
- Activate the parking brake.
Removing
Vehicles with automatic transmission:
- Move the selector lever all the way to the rear.
All vehicles:
- Turn off the ignition and all electrical consumers and remove the ignition key.
WARNING
Danger of unintended engine ignition.
Turn off the ignition and remove the ignition key from the vehicle interior for all work performed on the high voltage vehicle.
The Multimedia Control Head -E380- is fastened -1- with springs in the center console -arrows-.
- Remove the A/C display control head. Refer to → Heating, Ventilation and Air Conditioning; Rep. Gr.87; Display and Control Head; Display and Control Head, Removing and Installing and fold up the grommet -2- upward on the gearshift lever.
- Unlock the springs -arrows- using the Trim Removal Wedge -3409- and lift the Multimedia System Control Head -E380--3- upward and out of the center console.
Be careful of the short wires to the Multimedia System Control Head -E380-, the Electromechanical Parking Brake Button -E538- and the Access/Start Authorization Button -E408-.
- Disconnect the connectors on the rear side of the Multimedia System Control Head -E380-.
Remove the Electromechanical Parking Brake Button -E538- and Access/Start Authorization Button -E408-. Refer to → Electrical Equipment; Rep. Gr.96; Controls; Overview - Center Console Controls.
Installing
- Install in reverse order of removal.
Tightening specifications and installation instructions can be found in the Component Location Overview. Refer to → Chapter "Component Location Overview - Infotainment System".