
Locking/unlocking from inside ........75
SmartKey  ......................................... 70
Central locking/unlocking switch  ..... 75
Certification label  .............................. 332
Children in the vehicle  
Air bags  ........................................... 37
BabySmart™ air bag deactivation
system  ............................................. 46
Child safety locks (rear doors)  .........59
Child seat anchors – LATCH-type
(ISOFIX)  ........................................... 58
Indicator lamp, front passenger
front air bag off (Canada only)  .........46
Indicator lamp, front passenger
front air bag off (USA only)  ..............42
Infant and child restraint systems .... 55
ISOFIX (Child seat anchors –
LATCH-type) ..................................... 58
OCS (Occupant Classification
System)  ........................................... 42
Override switch  ................................ 59
Safety notes ..................................... 54
Tether anchorage points  ..................57
Top tether  ........................................ 57
Child safety
see Children in the vehicle                        
Child seat anchors – LATCH-type
(ISOFIX) see Children in the vehicle                        
Chrome-plated exhaust tip,
cleaning  .............................................. 266
Cigarette lighter  ................................ 209
Clear button  ....................................... 142
Climate control system  
Air conditioning  ............................. 191
Air conditioning refrigerant  ............354
Air distribution  ............................... 194
Air recirculation mode  ...................195
Air volume  ..................................... 194
Automatic mode  ............................ 192
Deactivating system  ......................191
Front defroster  .............................. 194
Maximum cooling MAX COOL  ........195
Temperature  .................................. 192
Clock  ............................................ 29, 132
Cockpit  ................................................. 27
Cold tire inflation pressure  .............. 250
Collapsible wheel chock  ................... 269COMAND system
see separate COMAND system
operating instructions                               
Combination gauge  ............................. 28
Combination switch  ............................ 93
Compass  ............................................ 210
Control system  .................................. 118
Multifunction display  .....................120
Multifunction steering wheel  .........118
Resetting to factory settings  ..........130
Control system menus  ...................... 121
AMG ............................................... 123
Audio  ............................................. 126
Navi  ............................................... 126
Service ........................................... 129
Settings  ......................................... 130
Telephone  ...................................... 128
Trip  ................................................ 121
Control system submenus  
Convenience  .................................. 135
Instrument cluster  .........................131
Lighting  .......................................... 133
Time/Date  ..................................... 132
Vehicle  ........................................... 135
Convenience submenu  
Easy-entry/exit feature .................. 136
Fold-in function for exterior rear
view mirrors  ................................... 136
Coolant  
Anticorrosion/antifreeze  ...............357
Capacities  ...................................... 351
Checking level  ............................... 227
Messages in the multifunction
display  ........................................... 288
Temperature gauge ........................ 117
Warning lamp ................................. 305
Coolant temperature gauge  ............... 28
Corner-illuminating front fog
lamps  .................................................... 94
Cruise control  .................................... 180
Activating ....................................... 181
Canceling  ....................................... 181
Changing the set speed  .................182
Last stored speed  ..........................183
Lever .............................................. 181
Messages in the multifunction
display  ........................................... 2756Index204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 6 

operation of certain systems. They do not
replace the owner’s and/or driver’s
responsibility to maintain the vehicle’s
operating safety. Have all required
maintenance and safety checks performed on
the vehicle. Bring the vehicle to an authorized
Mercedes-Benz Center to address the
malfunction and warning messages.
XPress button = 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:
XPress button : or 9 to select the
messages function.
XPress button a to confirm.
The stored messages will now be displayed
in the order in which they have occurred.
For malfunction and warning messages,
see “Vehicle status messages in the
multifunction display” (Y page 270).
XUse button : or 9 to scroll through
the messages.
If you turn the SmartKey in the starter switch
to position 0 and then back to position 2, all
messages will be deleted from the message
memory.
Settings menu
Introduction
In the Settings menu there are two
functions: The function Factory Setting
(Y page 130), with which you can reset the
settings to the original factory settings and a
collection of submenus (Y page 130) with
which you can make individual settings for
your vehicle.
Resetting to factory settings
You can reset most of the settings of the
submenus to the factory settings.
For safety reasons, the function Daytime 
Running Lamps in the Lights submenu
cannot be reset while driving.
XPress button = or ; to select the
Settings menu.
XPress button : or 9 to select the
Factory Setting function.
XPress button a.
The function Reset All Settings?
appears in the multifunction display.
XPress button : or 9 to select Yes or
No. Select Yes if you want to reset to
factory settings.
XPress button a to confirm.
The confirmation message appears in the
multifunction display.
Submenus in the Settings menu
XPress button = or ; to select the
Settings menu.
130Control systemControls in detail
204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 130       

XPress button a.XPress button : or 9 to select the
Daytime Running Lamps: function.
The current setting Enabled or Disabled
is shown.
XPress button a to change the current
status.
Depending on the previous status, the
Daytime Running Lamps: mode will be
Enabled or Disabled.
With Daytime Running Lamps mode
enabled and the exterior lamp switch at
position $ or c, the low-beam
headlamps are switched on when the engine
is running.
In low ambient light conditions the following
lamps will come on additionally:
RParking lamps
RTail lamps
RLicense plate lamps
RSide marker lamps
For more information on the daytime running
lamp mode, see (Y page 91).
iMake sure the exterior lamp switch is set
to M or c when you switch off the
daytime running lamps while driving at
night.
For safety reasons, resetting all the functions
of all submenus to the factory settings while
driving (Y page 130) will not deactivate the
daytime running lamp mode.
The following message appears in the
multifunction display:
Cannot Be Completely Reset to 
Factory Settings while Driving..
Switching locator lighting on or off 
With the Locator Lighting: function
activated and the exterior lamp switch in
position c
Rthe exterior lamps will come on during
darkness when the vehicle is unlocked with
the SmartKey.
The lamps will go out when the driver’s door
is opened.
If you do not open the driver’s door after
unlocking the vehicle with the SmartKey,
the lamps will go out automatically after
approximately 40 seconds.
Rthe exterior lamps will remain on for
15 seconds during darkness after exiting
the vehicle and closing all doors.
If, after turning off the engine, you do not
open or close a door, the lamps will
automatically go out after 60 seconds.
The following lamps will come on
RParking lamps
RTail lamps
RLicense plate lamps
RSide marker lamps
RFront fog lamps
XPress button = or ; to select the
Settings menu.
XPress button : or 9 to select the
Lights submenu.
XPress button a.XPress button : or 9 to select the
Locator Lighting: function.
The current setting Enabled or Disabled
is shown.
134Control systemControls in detail
204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 134     

deviate from conventional stereo
playback.
SYS menu
System settings menu overview
MenuSystemDisplay (Y page 147)BrightnessDay ModeNight ModeAutomaticActivate Bluetooth®
(Y page 147)
Reset (Y page 147)Language (Y page 148)
Display settings
You can adapt the brightness of the audio
display to the prevailing light conditions.
Setting the display design
Xi Q System Q Display.XSelect Brightness, Day Mode, Night 
Mode or Automatic.
iWhen you select Brightness, a scale
appears on which you can set the
brightness manually.
In the Automatic setting, the audio system
analyzes the automatic vehicle light sensor
and switches between the display designs
automatically.
Bluetooth® settings 
General information about Bluetooth®
Bluetooth® technology is the standard for
short-range wireless technologies, suitable
for transmitting voice and data. It is possible
to connect Bluetooth® devices wirelessly.
Bluetooth® can be used to exchange vCards
or to make calls using a hands-free device.
Bluetooth® technology uses the freely
available ISM (Industrial Scientific Medical)
wave band that works at 2.45 GHz.
Bluetooth® works within a range of up to 33 ft
(10 m).
Activate or deactivate Bluetooth®
Xi Q System Q Activate 
Bluetooth.
You have activated or deactivated
Bluetooth®. A checkmark O appears when
Bluetooth® is activated.
Reset
iYou can reset the audio system back to
its factory settings. In this case, all personal
data (e.g. address book entries, call lists,
paired mobile phones, and presets) are
deleted. We recommend that you reset the
values before selling your vehicle.
Audio system147Controls in detail204_AKB; 5; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T17:54:06+02:00 - Seite 147Z