Activate cockpit central display, function - GF54.30-P-2200SX

MODEL 221.0 /1, 216.3 up to Model Year 8

System status

The man-machine interface (MMI) has the following 3 system states:

"HU ON" (head unit ON)
"HU USER OFF" (head unit user OFF)
"SCREEN OFF"

Toggling between system status "HU ON" and "HU USER OFF"

By pressing the "ON" button (A40/9s6) of the front central operating unit (A40/9) a changeover is made between the system status "HU ON" and "HU user OFF".

Toggling the system status changes the range of functions and displays in the COMAND display (A40/8).

System status "HU ON"

The main functions (audio, video, telephone, etc.) are available and are displayed in the COMAND display. Some functions remain unavailable irrespective of the terminal status. These functions are grayed out in the COMAND display.

System status "HU USER OFF"

The main functions have been deactivated using the "ON" button on the front central operating unit or by removing the transmitter key (A8/1) "Tml. 15C OFF". The COMAND controller unit (A40/3) continues to be active. The screen of the COMAND display is black. However the climate functions line is displayed depending on the circuit status. The functions not available in the climate functions line are grayed out in the COMAND display.

System status "SCREEN OFF"

The background illumination of the COMAND display is switched off. The main functions are available, but no information is displayed. This status is activated by selecting the following option via the menu:

Activate "Vehicle" in the submenu line
Activate the "System settings" submenu in the "Vehicle" menu
Activate the "Display" submenu in the "System settings" menu
Activate the "Display OFF" function in the "Display" menu

Display in COMAND display with different system states and terminal states

If the transmitter key is removed ("Tml. 15C OFF"), the COMAND display remains inactive in both the state "HU USER OFF" and "HU ON".

The COMAND display can, however, be switched on by pressing the "ON" button on the front central operating unit even if the "Tml. 15C OFF" state exists. It switches off again after 30 minutes if the status does not change to "Tml. 15R ON" beforehand.

Shown on model 221 up to 31.8.06

Further behavior of COMAND display

System status is "HU ON" and terminal status is "Tml. 15C ON"; the currently selected function is displayed and executed.

The screen is completely black with system status "HU USER OFF" and terminal status "Tml. 15C ON"

Fig 1: Identifying Screen Display - System And Terminal Status (HU ON, 15C ON)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 up to 31.8.06

System status is "HU ON" and terminal status is "Tml. 15R ON"; the currently selected function is displayed and executed.

Fig 2: Identifying Screen Display - System And Terminal Status (HU ON, 15R ON)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 up to 31.8.06

System status is "HU USER OFF" and terminal status is "Tml. 15R ON".

Fig 3: Identifying Screen Display - System And Terminal Status (HU USER OFF, 15R ON)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 up to 31.8.06

System status is "HU ON" and terminal status is "Tml. 15 ON"; the currently selected function is displayed and executed.

Fig 4: Identifying Screen Display - System And Terminal Status (HU ON, 15 ON)

Courtesy of MERCEDES-BENZ USA

Shown on model 221 up to 31.8.06

System status is "HU USER OFF" and terminal status is "Tml. 15 ON".

Fig 5: Identifying Screen Display - System And Terminal Status (HU USER OFF, 15 ON)

Courtesy of MERCEDES-BENZ USA

MMI system start

The MMI system is run up if the status changes to "Tml. 15C ON" or the "ON" button on the front central operating unit is pressed.

If the status changes to "Tml. 15R ON" or the "ON" button on the front central operating unit is pressed, the corporate identity screen is displayed first followed by the disclaimer screen. The application which was called up via the COMAND display before the system was last switched off is then started.

Shown on model 221 up to 31.8.06

Corporate identity screen

The corporate identity screen is displayed in the COMAND display first each time the system is started.

Fig 6: Identifying Screen Display - Corporate Identity Screen

Courtesy of MERCEDES-BENZ USA

Shown on model 221 up to 31.8.06

Disclaimer screen

The disclaimer screen is displayed in the COMAND display following the corporate identity screen each time the system is started.

Fig 7: Identifying Screen Display - Disclaimer Screen

Courtesy of MERCEDES-BENZ USA

COMAND display, component description	GF54.30-P-6100SX
Front central operating unit, component description	GF54.21-P-4500SX