Page 156 of 457
155 Controls in detail
Control system
Selecting audio search function
Use of the audio search function to select
a radio station (
page 141) will enable
you to start a frequency scan (
Frequency)
or select a radio station stored in memory
(
Memory).
Move the selection marker with
buttonæ orç to the
Vehicle
submenu.
Press buttonj ork repeatedly
until the message
Audio search
appears in the multifunction display.The selection marker is on the current
setting.Press buttonæ orç to select
Frequency
or Memory.Setting automatic locking
Use this function to activate or deactivate
the automatic central locking. With the
automatic central locking system
activated, the vehicle is centrally locked at
vehicle speeds of approximately 9 mph
(15 km/h).
Move the selection marker with
buttonæ orç to the
Vehicle
submenu.
Press buttonj ork repeatedly
until the message
Automatic door
lock
appears in the multifunction
display.
Page 231 of 457

230 Controls in detail
Useful features
System self-check
Initially, after switching on the ignition,
malfunctions are detected and indicated
(the indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than 10 seconds or do not come on). The
message
Tele Aid inoperative appears
in the multifunction display.Emergency calls
An emergency call is initiated auto-
matically following an accident in which
the emergency tensioning devices (ETDs)
or air bags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
interior rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See (
page 231) for
instructions on initiating an emergency call
manually.
Once the emergency call is in progress, the
indicator lamp on the SOS button will
begin to flash. The message
Connecting
call
appears in the multifunction display.
When the connection is established, the
message
Call connected appears in the
multifunction display. All information
relevant to the emergency, such as the
location of the vehicle (determined by the
GPS satellite location system), vehicle
model, identification number and color are
generated.
iWhen a Tele Aid call has been initiated,
the COMAND system audio is muted and the
selected mode (radio, CD etc.) pauses.
The optional cellular phone (if installed) inserted
in cradle switches off. If you must use this
phone, we recommend that you use it only with
the vehicle at a standstill in a safe location.
Remove the phone from the cradle and place the
call. The navigation system (if engaged) will con-
tinue to run. The display in the instrument cluster
is available for use, and spoken commands are
only available by pressing the RPT button on the
COMAND system. A pop-up window will appear
in the COMAND system display to indicate that a
Tele Aid call is in progress. After the Tele Aid call
has ended, the optional cellular phone inserted
in the cradle switches on again. A PIN entry
might be necessary.
Warning!G
If the indicator lamps on the SOS button, on
the Roadside Assistance button, and/or on
the Information button remain illuminated
continuously in red and/or the message
Tele Aid inoperative is displayed in the
multifunction display after the system
self-check, a malfunction in the system has
been detected.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. Have the system checked at the
nearest Mercedes-Benz Light Truck Center
as soon as possible.
Page 433 of 457

432 Index
Air pressure 304
Air pressure see Tire inflation pressure
Air recirculation mode 188
Activating 188
Deactivating 189
Air vents, Rear
Climate control 191
Air volume
Adjusting 186
Alarm
Audible 87, 96
Canceling 97, 98
Visual 96
Alarm system
Anti-theft 96
Anticorrosion/antifreeze 428
Anti-theft alarm system
Arming 97
Canceling alarm 97
Disarming 97
Anti-theft systems 96
Anti-theft alarm system 96
Tow-away alarm 98
Aquaplaning see HydroplaningArmrest
Storage box in front of 217
Storage compartments below 216
Telephone* tray below 216
Ashtrays 220
In center console 220
In rear passenger compartment 221
Aspect ratio 304
At the gas station 264
ATF (automatic transmission fluid) 273
Audio menu 141
Selecting radio station 141
Audio search function 155
Auto-dimming for rear view mirror 177
Automatic central locking
Activating/deactivating (control
system) 155
Automatic headlamp mode 118
Automatic locking when driving 106
Automatic operation
Interior lighting control 125Automatic transmission 162
Accelerator position 166
Emergency operation (Limp Home
Mode) 169
Fluid level 273
Gear ranges 167
Gear selector lever 162
Gear selector lever position 163, 164
Gear shifting malfunctions 169
Kickdown 166
One-touch gearshifting 168
Shifting procedure 163
Transmission fluid 273
B
BabySmart
TM
Air bag deactivation system 81
Compatible child seats 81
Self-test 82
Backup lamp
Message in display 357
Backup lamps
Bulbs 378
Replacing bulbs 386
Bar 304
BAS 88, 90
Page 436 of 457

435 Index
Cockpit 24
Cold tire inflation pressure 304
COMAND see separate operating
instructions
Combination switch 25, 122
High beam flasher 57, 122
High beam headlamps 122
Turn signals 57
Windshield wipers 58
Control and operation of radio
transmitters 261
Control system 133
Audio menu 141
Convenience submenu 156
Display digital speedometer 140
Display outside temperature 140
Functions 135, 137, 139
Instrument cluster submenu 149
Lighting submenu 151
Menus 136, 137, 139
Multifunction display 133
Multifunction steering wheel 134
NAVI menu 144
Satellite radio (USA only) 142
Selecting radio system 141
Settings menu 146Standard display menu 140
Submenus 135, 137, 139
TEL menu 159
Trip computer menu 157
Vehicle status message memory
menu 144
Vehicle submenu 154
Convenience feature 194
Convenience submenu 156
Activating easy-entry/exit
feature 156
Coolant 274, 427
Adding 275
Anticorrosion/antifreeze
quantity 428
Capacities 422
Checking level 274
Messages in display 347–350
Temperature 263
Temperature gauge 131
Coolant level
Checking 266, 274
Coolant temperature gauge 27
Corner-illuminating front fog lamps 122
Crossing obstacles 258Cruise control 197
Canceling 198
Driving downhill 198
Driving uphill 198
Fine adjustment 199
Message in display 350
Setting current speed 198
Setting speed 199
Cruise control lever 198
Cup holders 219
In front passenger footwell 220
In rear passenger footwell 220
Next to armrest 219
Curb weight 304
Page 443 of 457

442 Index
Loss of Service and Warranty Information
Booklet 411
Low beam headlamps
Messages in display 356
Replacing bulbs 378
LOW RANGE - ABS 90
Lowering
Vehicle 394
Lubricants
Technical data 422
M
Main dimensions 420
Maintenance 311
Maintenance service
Basic service (Service A) 311
Calling up the maintenance service
indicator display 313
Extended service (Service B) 311
Overdue 313
Types 313
When due 311
Maintenance service indicator
Calling up 313
Clearing 313
Maintenance service indicator display
Calling up 313Maintenance service indicator
message 311
Clearing 312
Malfunction
Displaying 145
Rear Parking Assist 203
Manual headlamp mode 118
Manual operation
Interior lighting control 126
Manual operations
Fuel filler flap 372
Locking the vehicle 371
Tilt/sliding sunroof 374
Unlocking gear selector lever 373
Unlocking the driver’s door 370
Unlocking the tailgate 371
Maximum load rating 305
Maximum loaded vehicle weight 305
Maximum tire inflation pressure 305
Mechanical key 370
Removing 370Memory function 114
Recalling positions from
memory 115
Storing exterior rear view mirror
parking position 116
Storing key dependent settings 115
Menus 135
Audio 141
In control system 136, 137, 139
NAVI 144
Standard display 140
Submenus 135
TEL 159
Trip computer 157
Vehicle status message memory 144
Messages in the multifunction
display 338
Symbol messages 344–365
Text messages 340–343
Middle tunnel
Fuse box in 407
Miles/kilometers in speedometer
Setting 149