Page 166 of 509

165 Controls in detail
Control system
Press ( or & to select the 
Service menu.
If conditions have occurred causing status 
messages to be recorded, the number of 
messages appears in the multifunction 
display:
1Number of messages
Press % or $ to select the mes-
sage.
Press # to confirm.
The stored messages will now be 
displayed in the order in which they 
have occurred.
Use % or $ to scroll through the 
messages.Checking tire inflation pressure
For information about checking tire infla-
tion pressure (
page 339).
Activating Run Flat Indicator 
(Canada only)
For information about activating Run Flat 
Indicator (
page 342).
Calling up the maintenance service 
indicator display
For information about calling up the main-
tenance service indicator display 
(
page 362).
Settings menu
In the 
Settings menu there are two 
functions:
The function Reset to factory 
settings
, with which you can reset all 
the settings to the original factory 
settings.
A collection of submenus with which 
you can make individual settings for 
your vehicle.
iSee the “Practical hints” section for mal-
function and warning messages (
page 387).
iIf you turn the SmartKey in the starter 
switch to position0 and then back to position2, 
all messages will be deleted from the message 
memory. 
         
        
        
     
        
        Page 167 of 509

166 Controls in detail
Control system
Resetting all settings
You can reset most of the functions of the 
submenus to the factory settings.
Press ( or & to select the 
Settings menu.
Press % or $ to select the 
Factory settings function.
Press #.
The menu 
Reset to factory settings 
No/Yes
 appears in the multifunction 
display.
Press % or $ to select Yes or No. 
Select 
Yes if you want to reset to facto-
ry settings.
Press # to confirm.
The confirmation message appears in 
the multifunction display.
The functions of the submenus will re-
set to factory settings.
Submenus in the Settings menu
Press ( or & to select the Set-
tings
 menu.
Press % or $ to select a sub-
menu.The submenus are arranged by hierarchy. 
Scroll down with%, scroll up 
with$.
With the selection marker on the desired 
submenu, use the# to access the indi-
vidual functions within that submenu. 
Once within the submenu, you can use 
the$ to move to the next function or 
the% to move to the previous function 
within that submenu.
The table below shows what settings can 
be changed within the various submenus. 
Detailed instructions on making individual 
settings can be found on the following 
pages.
iFor safety reasons, the following function 
are not reset while driving:
the Headlamp mode function in the Light-
ing
 submenu 
         
        
        
     
        
        Page 169 of 509

168 Controls in detail
Control system
Instrument cluster submenu
Access the 
Instr. Cluster submenu via 
the 
Settings menu. Use the Instr. Clus-
ter
 submenu to change the instrument 
cluster display settings. 
The following functions are available:
Select speedometer display mode
Press % or $ to select the 
Instr. Cluster submenu.
Press #.
Press % or $ to select Display 
Unit Speed-/odometer
 function.The selection marker is on the current 
setting.
Press % or $ to set speedome-
ter unit to
km ormiles.
Press # to confirm the setting.
The selected display unit is valid for:
Odometer and trip odometer
Trip computer
Digital speedometer in the trip menu
Cruise controlSelect language
Selecting the language for the multifunc-
tion display is only possible with the Audio 
system (
page 193) or with COMAND*.
Vehicles with COMAND*: Refer to sepa-
rate operating instructions.
The language select in the Audio system or 
COMAND* is also used for the displays 
and messages in the multifunction display.
Available languages:
German
English
Spanish
French
Italian
FunctionPage
Select speedometer display 
mode168
Switch the additional speedome-
ter on or off (vehicles with manu-
al transmission)169
Permanent display (vehicles with 
automatic transmission*)169 
         
        
        
     
        
        Page 170 of 509

169 Controls in detail
Control system
Showing or hiding additional 
speedometer (vehicles with manual 
transmission)
You can have an additional digital speed-
ometer shown on the multifunction dis-
play. The speed is shown in the unit of 
kilometers/hour (USA) or miles/hour 
(Canada).
Press % or $ to select the 
Instr. Cluster submenu.
Press #.
Press % or $ to select the Addi-
tional Speedometer
 function.
Press #.
The current setting is shown.
Press # again if you would like to 
change the current status.Depending on the previous status, the 
additional speedometer will be 
switched 
On orOff.
Permanent display (vehicles with auto-
matic transmission*)
You can use the 
Permanent Display func-
tion to choose to display either the outside 
temperature or the speed in kilometers 
(USA) or miles (Canada) permanently.
Press % or $ to select the 
Instr. Cluster submenu.
Press #.
Press % or $ to select the Per-
manent Display
 function.
Press #.
The current setting 
Outside tempera-
ture
 orSpeedometer (km/h) 
(USA)/
Speedometer (miles) (Canada) 
is shown.
Press # again if you would like to 
change the current status.
Depending on the previous status, the 
Permanent Display will be switched 
between 
Outside temperature or 
Speedometer (km/h) (USA)/Speedome-
ter (miles)
 (Canada).
The selected display is then shown 
continuously in the lower display. 
         
        
        
     
        
        Page 171 of 509

170 Controls in detail
Control system
Time/date submenu
Access the 
Time/date submenu via the 
Settings menu. Use the Time/Date 
submenu to change the instrument cluster 
display settings.
The following functions are available:Set the time
This function is not available if your vehicle 
is equipped with the COMAND* system 
and navigation module*.
Press % or $ to select the 
Instr. Cluster submenu.
Press #.
Press % or $ to select the 
Time/date function.
Press #.
Press % or $ to select the Time 
function.
Press #.
The current time appears in the multi-
function display.
To set a new time press # again.
Press button ( or & to select 
the setting you wish to change: hours 
or minutes.
Press button % or $ to change 
the setting which is highlighted.
Press # to store the entry.
Set the date
This function is not available if your vehicle 
is equipped with the COMAND* system 
and navigation module*.
Press % or $ to select the 
Instr. Cluster submenu.
Press #.
Press % or $ to select the 
Time/date function.
Press #.
FunctionPage
Set the time (hours)170
Set the time (minutes)170
Set the date (month)170
Set the date (day)170
Set the date (year)170
iVehicles with COMAND*:
For information on setting the time, refer to the 
separate COMAND operating instructions.
iVehicles with COMAND*:
For information on setting the date, refer to the 
separate COMAND operating instructions. 
         
        
        
     
        
        Page 172 of 509

171 Controls in detail
Control system
Press % or $ to select the date 
function.
Press #.
The current date appears in the multi-
function display.
To set a new date press # again.
Press button ( or & to select 
the setting you wish to change: month, 
day or minutes.
Press button % or $ to change 
the setting which is highlighted.
Press # to store the entry.Lighting submenu
Access the 
Lights submenu via the 
Settings menu. Use the Lights submenu 
to change the lamp and lighting settings on 
your vehicle.
The following functions are available:Setting daytime running lamp mode 
(USA only)
Press % or $ to select the 
Lights submenu.
Press #.
Press % or $ to select the Day-
time Running Lamps
 feature.
Press #.
The current setting 
Enabled 
or
Disabled is shown.
Press # again if you would like to 
change the current status.
FunctionPage
Setting daytime running lamp 
mode (USA only)171
Setting locator lighting172
Setting interior lighting delayed 
shut-off173
iThis function is not available in countries 
where the daytime running lamp mode is manda-
tory and therefore in a constant mode.
 
         
        
        
     
        
        Page 173 of 509

172 Controls in detail
Control system
Depending on the previous status, the 
daytime running lamps feature will be 
Enabled orDisabled.
With 
Daytime Running Lamps mode En-
abled
 selected and the exterior lamp 
switch at position M or *, the low 
beam headlamps are switched on when 
the engine is running.
In low ambient light conditions the follow-
ing lamps will switch on additionally:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
also illuminates the instrument cluster.
For more information on the daytime run-
ning lamp mode (
page 110).Setting locator lighting
Press % or $ to select the 
Lights submenu.
Press #.
Press % or $ to select the Sur-
round Lighting
 feature.
Press #.
The current setting 
Enabled 
or
Disabled is shown.
Press # again if you would like to 
change the current status.
Depending on the previous status, the 
locator lighting feature will be 
Enabled 
or
Disabled.
With the locator lighting feature activated 
and the exterior lamp switch in 
positionU, the following lamps will 
switch on during darkness when the vehi-
cle is unlocked with the SmartKey:
Parking lamps
Tail lamps
License plate lamps
Side marker lamps
Front fog lamps
also illuminates the instrument cluster.
iIf you turn the exterior lamp switch to anoth-
er position, the corresponding lamp(s) will 
switch on.
iMake sure the light switch is set toB 
or* when you switch off the daytime running 
lamps while driving at night.
iFor safety reasons, resetting the Lights 
submenu to factory settings (
page 165) while 
driving will not deactivate the daytime running 
lamp mode.
The following message appears in the 
multifunction display:
Lighting - Cannot be completely reset 
to factory settings while driving.
 
         
        
        
     
        
        Page 182 of 509

181 Controls in detail
Audio system
Display
The currently selected mode and the asso-
ciated menus are shown on the audio dis-
play. The audio display is divided into 
several areas.
For example, radio selected
1Menu bar
2Main area
3Status lineThe status line3 displays the time and 
the current settings for radio and 
telephone mode.
You can request the required function 
using the menu bar1. 
The selection is made using the audio con-
troller.Mobile phone readiness is indicated by 
additional information being shown in the 
status line:
In the main menu TEL: Name of the 
Bluetooth® device (calls made and re-
ceived via the Bluetooth® interface).
Mobile phone network signal 
strengthI. This information will 
only be shown with suitable tele-
phones.
Receiver symbol 4 ö
In this example, the audio main function is 
set to the radio mode and the main 
area2 is active.
iThe layout of the menus may vary depending 
on your vehicle’s equipment. This manual shows 
the menus for a fully equipped vehicle.