Instrument cluster (IC), operating information - GF54.30-P-0002-05QO

Illustrated on model 209.4

Fig 1: Identifying Instrument Cluster (IC) Components - Illustrated On Model 209.4

Multifunction steering wheel (MFL) controls

Fig 2: Identifying Multifunction Steering Wheel (MFL) Controls Buttons

This document covers the following points:

Operating the multifunction display (A1p13)
Call display of different systems
Browse within a system
Individual settings
Change setting
Recall the factory settings
Calling up stored warning messages
Acknowledging warning messages in the multifunction display (A1p13)
Set brightness of lighting

Operating the multifunction display (A1p13)

If the instrument cluster (A1) is activated by opening the driver door, for instance, the main screen of the base system (trip and total mileage, outside temperature) always appears on the multifunction display (A1p13).

Calling up display of different systems

Function requirement is "Circuit 15R ON".

If the system selection button (S110s3) of the multifunction steering wheel is pressed, the multifunction display (A1p13) switches over to the basic display of the next system. Once the driver has scrolled through all systems the main screen of the base function appears again.

System selection via multifunction steering wheel using the system selection button (S110s3)

Fig 3: System Selection Via Multifunction Steering Wheel Using System Selection Button (S110S3)

Function of scroll forward/back pushbutton (S110s1) using the base function as an example

Fig 4: Function Diagram Of Scroll Forward/Back Pushbutton (S110S1) Using Base Function

The illustration above shows the possible systems arranged in a circle. When the system selection button (S110s3) is pressed, the display always goes to the next system.

You can jump to another system from any screen by pressing the system selection button (S110s3).

With the exception of the trip computer, the basic display of this system then appears. If a change is made from the system in front to the trip computer system, the display screen is always called up which was last shown for the trip computer.

Scrolling within a system

Function requirement is "Circuit 15R ON".

In addition to the main screen, most systems also feature other screens.

The scroll forward/back button (S110s1) is used to scroll within a system.

The display jumps one screen further each time the driver presses the scroll forward/back pushbutton (S110s1) ( ↑). The display scrolls either forwards or backwards depending on which portion of the scroll forward/back pushbutton (S110s1) the driver presses (↑, ↓).

Only systems and functions with which the vehicle is equipped are displayed. If a system is not present, it is not displayed (go toped) when the system selection button (S110s3) is pressed.

Overview and sequence for the "Settings" menu item

Fig 5: Overview Diagram And Sequence For "Settings" Menu Item

Selection of menu items in the menu item "Settings"

Press the system selection button (S110s3) until the menu "Settings... reset: press reset button for 3 seconds" appears in the multifunction display (A1p13). go to the "Settings" menu via the scroll forward/back button (S110s1) ( ↑).

Press the + and -, specific function setting and volume control button (S111s1) to select the menu item required.

Individual setting

Function requirement is "Circuit 15R ON".

The "Settings" function allows the driver to change various presets. The driver has the option of carrying out various presettings via the "Settings" function. With the instrument cluster (A1) the time can be set in hours and minutes on vehicles except code (352) COMAND operating and display system.

The changeover of display mode of time from 12 h to 24 h takes place automatically.

Temperature display

The changeover of the display unit temperature display degrees Celsius (°C) or degrees Fahrenheit (°F) depending on the national version takes place via the respective variant coding of the instrument cluster (A1) via the EIS [EZS] control unit (N73). The instrument cluster (A1) also sends a message for the air conditioning on the class B (interior) controller area network bus (CAN-B).

The driver can no longer switch the outside temperature indicator (A1p4) between degrees Celsius and degrees Fahrenheit.

Speedometer

You can switch the tachometer between miles and kilometers per hour. This changeover also affects the display of the trip computer system integrated in the instrument cluster (A1). In addition the instrument cluster (A1) places a message on the Class C (engine compartment) controller area network bus (CAN-C).

The following settings are also possible:

Automatic door locking (ON or OFF)
Speed limit for winter tires "160 km/h to 240 km/h" or "OFF
Driving lamps "manual", "driving lamps" or "automatic driving lamps"
Function of ambient illumination
Headlamp switch-off delay "ON" or "OFF"; status "ON" corresponds to a time span of t = 15 seconds
Interior light OFF delay time "ON"or "OFF"; status "ON" corresponds to a time span of t = 10 seconds
Station search (frequency/memory)
Cut-in time of stationary heater (STH), with code (228) stationary heater
Activate entry assist (only steering wheel adjustment "ON"or "OFF"), with code (275) memory package (driver seat, steering column, mirrors), with code (275) Memory package (driver seat, mirrors) or with code (275) Electrically adjustable driver seat, steering column and outside mirrors with memory
Parking assist mirror adjustment "ON" or "OFF"

The "automatic heater booster" is activated automatically on vehicles with diesel engine.

Text/language

The language in which the texts appear in the instrument cluster (A1) can be selected here.

The instrument cluster (A1) also places a corresponding message on CAN-B. The language in which the texts appear in the instrument cluster (A1) can be selected here.

Overview and sequence of settings for the "Instrument cluster" menu item

Fig 6: Overview And Sequence Of Settings For "Instrument Cluster" Menu Item

Change setting in "Instrument Cluster" menu item

Press the system selection button (S110s3) until the "Settings" function appears in the multifunction display (A1p13), go to the corresponding menu item using the scroll forward/back button (S110s1) (↑).

Press the button + and -, setting of specific functions and volume control (S111s1) towards (+) or (-) until the desired value is active in the multifunction display (A1p13).

Press the forward/back button (S110s1) ( ↑ ) until the setting of the display to be changed appears in the multifunction display (A1p13). Press the button + and -, setting of specific functions and volume control (S111s1) towards (+) or (-), until the desired value is active in the multifunction display (A1p13). The respective activated value is valid immediately.

Overview and sequence of settings in the menu item "Lighting"

Fig 7: Overview Diagram And Sequence Of Settings In Menu Item "Lighting"

Change setting in "Illumination" menu item

Press system selection button (S110s3) until the "Settings" function appears in the multifunction display (A1p13), go to the corresponding menu item using the scroll forward/back button (S110s1) ( ↑). Press pushbutton + and, setting specific functions and volume control (S111s1) towards (+) or (-) until the desired "Lighting" menu item is active in the multifunction display (A1p13).

Press the forward/back button (S110s1) ( ↑) until the setting of the display to be changed appears in the multifunction display (A1p13). Press the button + and -, setting of specific functions and volume control (S111s1) towards (+) or (-), until the desired value is active in the multifunction display (A1p13). The respective activated value is valid immediately.

Overview and sequence of adjustments in "Vehicle" menu item

Fig 8: Overview Diagram And Sequence Of Adjustments In "Vehicle" Menu Item

Change setting in "Vehicle" menu item

Press pushbutton + and -, setting specific functions and volume control (S111s1) towards (+) or (-) until the desired "Vehicle" menu item is active in the multifunction display (A1p13), Press the scroll forward/back pushbutton (S110s1) (↑) until the display of the setting to be changed appears in the multifunction display (A1p13).

Press the button + and -, setting of specific functions and volume control (S111s1) towards (+) or (-), until the desired value is active in the multifunction display (A1p13). The respective activated value is valid immediately.

Overview and sequence of settings in the "Comfort" menu item

Fig 9: Overview Diagram And Sequence Of Settings In "Comfort" Menu Item

Change setting in "Comfort" menu item

Press pushbutton + and -, setting specific functions and volume control (S111s1) towards (+) or (-) until the desired "Comfort" menu item is active in the multifunction display (A1p13), Press the scroll forward/back button (S110s1) ( ↑) until the display of the setting to be changed appears in the multifunction display (A1p13).

The settings can be selected independent of the vehicle speed.

Recall the manufacturer default settings

All the settings are erased and the manufacturer default settings are reproduced by the reset described in the following:

Press the system selection button (S110s3) until the "SETTINGS" function appears in the multifunction display (A1p13).
Operate the instrument illumination rheostat and reset button (A1r1) for at least 3 seconds.
"RESET SETTINGS, CONFIRMATION WITH RESET BUTTON" appears in the multifunction display (A1p13)
Operate the instrument illumination rheostat and reset button (A1r1) once more within 5 seconds, all the settings are now reset to the manufacturer default setting.
"RESET TO MANUFACTURER DEFAULT SETTINGS" appears in the multifunction display (A1p13)

If the instrument lighting dimmer and reset button (A1r1) is not operated within this period of 5 seconds, the display switches back to the basic display. The settings are not then reset.

If a reset is performed while driving, the setting menu "Driving lights on" in the "Lights" menu and the setting menu "Speed limit (winter tires) in the "Vehicle" menu are not reset for safety reasons.

The message "NOT ALL SETTINGS RESET TO DEFAULTS WHILE DRIVING" appears.

Calling up stored warning messages

When the instrument cluster (A1) is active, you can scroll through the stored warning messages:

Press the system selection button (S110s3) until the "warning messages" display appears in the multifunction display (A1p13).
Using the button + and -, setting of specific functions and volume control (S111s1) scroll through the warning messages. The warning messages are displayed in the order in which they were acknowledged.

Acknowledgment of warning messages.

These warning messages are divided into 3 categories according to their priority.

Warning messages in categories 2 and 3 in the multifunction display (A1p13) can be acknowledged by pressing the instrument illumination rheostat and reset button (A1r1) as well as with the system selection button (S110s3) of the multifunction steering wheel and then stored in the fault memory.

The warning message "Check windshield washer fluid level" is displayed after each driving cycle, it cannot be acknowledged. Acknowledgment takes place automatically after a certain time span

Warning messages of category 1 (highest priority) cannot be acknowledged. Indicator or warning lamps that light up in parallel cannot be acknowledged.

Certain warning messages are also accompanied by a chime. A warning message is "Close trunk lid" for example. Such warning messages are not stored in the fault memory.

Set brightness of lighting

The brightness of illumination of the instrument cluster (A1) and the switch and controls illumination can be adapted to individual requirements with the instrument illumination rheostat (A1r1):

Brightness is increased by turning to the right.
Brightness is reduced by turning to the left.

Workshop level of instrument cluster (A1)

Basic prerequisite is "Circuit 15R ON".

The following steps are necessary in order to reach the workshop level in the multifunction display (A1p13):

Adjust standard display (basic condition with current total mileage and trip odometer and outside temperature)
Press the instrument illumination rheostat and reset button (A1r1) for approx. 20 to 30 seconds, as of 1.6.03 3 times within approx. 2.5 seconds until a beep is audible

Via the scroll forward/back button (S110s1) on the multifunction steering wheel MFL it is possible to change between the individual sub-items:

On-board electrical system voltage display
Chassis number
Instrument cluster data
Dynamometer test mode

Switch on dynamometer test mode

With the dynamometer test mode the wheel speeds of the driven axle are reflected in the non-driven axle. This is necessary on the brake test stand so that no fault is entered in the ESP and BAS control unit (N47-5).

With the dynamometer test mode the wheel speeds of the driven axle are reflected in the non-driven axle.

Adjust workshop level in the multifunction display (A1p13)
Press scroll forward/back button (S110s1) once towards (↑), until the "Dynamometer test" display appears
Switch on the roller test mode using the + and -button, adjustment of specific functions and volume control (S111s1).

The dynamometer test mode remains active, even if "Circuit 15R ON" has been switched off in the meantime, until it is switched off with the button + and -, setting of specific functions and volume control (S111s1).