Page 5 of 539

ContentsSafety and Security...........................  65
Occupant safety...................................  66
Air bags ..........................................  67
Seat belts .......................................  73
Preventive occupant safety* 
(PRE-SAFE)
®...................................  77
Children in the vehicle ....................  78
Blocking of rear door
window operation ...........................  89
Panic alarm ..........................................  91
Activating .......................................  92
Deactivating ...................................  92
Driving safety systems .........................  93
ABS ................................................  93
BAS ................................................  95
ESP
®..............................................  95
EBP.................................................  98
4-ETS ..............................................  98
Anti-theft systems..............................  100
Immobilizer...................................  100
Anti-theft alarm system ................  100
Tow-away alarm ...........................  102
Controls in detail.............................  105
Locking and unlocking .......................  106
SmartKey .....................................  106
SmartKey with KEYLESS-GO* ......  110
Opening the doors
from the inside .............................  117
Opening the tailgate .....................  118
Closing the tailgate ......................  120
Automatic central locking ............  125
Locking and unlocking
from the inside .............................  126
Seats .................................................  128
Easy-entry/exit feature
(Vehicles with
memory function*) .......................  128
Lumbar support............................  130
Rear seat head restraints .............  130
Multicontour seat* .......................  132
Seat heating* ...............................  133Memory function* .............................  135
Storing positions in memory ........  136
Recalling positions
from memory ...............................  136
Storing exterior rear
view mirror parking position ........  137
Lighting .............................................  138
Exterior lamp switch ....................  138
Combination switch .....................  142
Corner-illuminating
front fog lamps*...........................  143
Hazard warning flasher ................  144
Interior lighting ............................  145
Door entry lamps .........................  147
Instrument cluster .............................  148
Instrument cluster illumination ....  148
Trip odometer ..............................  149
Tachometer ..................................  149
Outside temperature indicator .....  149 
     
        
        Page 101 of 539

100 Safety and SecurityAnti-theft systemsImmobilizer
The immobilizer prevents unauthorized 
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter 
switch.
With KEYLESS-GO*
Press the start/stop button on the 
starter switch once.
The engine is turned off.
Open the driver’s door.Deactivating
With the SmartKey
Turn the SmartKey in the starter switch 
to position2 (
page 34).
With KEYLESS-GO*
Switch on the ignition (
page 34).
Anti-theft alarm system
Once the alarm system has been armed, a 
visual and audible alarm is triggered when 
someone opens
a door
the tailgate
the hood
The alarm will stay on, even if the activat-
ing element (a door, for example) is imme-
diately closed.
The alarm system will also be triggered 
when someone attempts to raise the vehi-
cle, see “Tow-away alarm” (
page 102).
iStarting the engine will also deactivate 
the immobilizer.
In case the engine cannot be started 
(yet the vehicle’s battery is charged), 
the system is not operational. Contact 
an authorized Mercedes-Benz Light 
Truck Center or call
1-800-FOR-MERCedes (in the USA), or 
1-800-387-0100 (in Canada).
iIf the alarm stays on for more than 
30 seconds, a call to the Response 
Center is initiated automatically by the 
Tele Aid* system (
page 280) provid-
ed Tele Aid service was subscribed to 
and properly activated, and that neces-
sary cellular service and GPS coverage 
are available. 
     
        
        Page 509 of 539

508 IndexAir bags 67
Children 68
Front 71
Passenger 71
Safety guidelines 70
Side impact 72
Window curtain 72
Air conditioning
Turning off 211
Turning on 211
Air conditioning refrigerant 495
Air distribution
Adjusting 207, 222
Air pressure 365, 501
Air pressure see Tire inflation pressure
Air recirculation mode 209, 223
Activating 209, 224
Deactivating 210, 225
Air suspension package* 249
Air suspension* 501Air volume
Adjusting 207, 208, 222
Alarm
Audible 91, 102
Canceling 102
Visual 100
Alarm system
Anti-theft 100
Alignment bolt (vehicle tool kit) 501
Anticorrosion/antifreeze 499
Antilock brake system (ABS) 501
Anti-theft alarm system
Arming 101
Canceling alarm 102
Disarming 101
Anti-theft systems
Anti-theft alarm system 100
Immobilizer 100
Tow-away alarm 102
Aquaplaning see HydroplaningArmrest
Storage compartment in front of 272
Storage compartments 272
Armrest in rear seat bench 275
Ashtray*
Front center console 275
Aspect ratio 365
ATF (automatic transmission fluid) 332
Attaching a trailer 316
AUDIO menu 157
Selecting radio station 157
Selecting satellite radio*
station (USA only) 157
Audio system
CD mode 158
Auto-dimming rear view mirror* 195
Auto-dimming*
Rear view mirror 195
Automatic central locking
Activating/deactivating
(control system) 172 
     
        
        Page 514 of 539

513 Index
Cup holder 274
Cleaning 379
In front seat armrest 274
In rear center console 274
Reinstalling 275
Removing 275
Curb weight 365
Customer Assistance Center (CAC) 501
D
Daytime running lamp mode 140
Setting 167, 168
Deactivating
Air conditioning 211
Air conditioning (cooling) 226
Air recirculation mode 210, 225
Alarm 101
Anti-theft alarm system 101
Automatic climate control* 
(3-zone) 220
Central locking (control system) 172
Climate control 206
climate control system 206
Cruise control 240Defrost 209, 223
Engine 62
ESP
®
97
Hazard warning flasher 145
Headlamps 62
Immobilizer 100
Interior lighting delayed 
switch-off 170
Rear passenger compartment
ventilation and climate control 228
Rear window defroster 201
Rear window wiper 58
Residual heat 212, 227
Seat heating* 134
Tow-away alarm 102
Deep water see Standing water
Defogging
Windshield 208, 222
Defrosting 208, 223
Delayed switch-off
Interior lighting 170
Department of Transportation see DOT
Dialing
A number (telephone*) 180Difficulties
While driving see Problems
while driving
Digital speedometer 156
Direction of rotation (tires) 338
Discharged battery
Jump starting 470
Disconnecting
Vehicle battery 464
Display
Selecting 165
Displays
Digital speedometer 156
Maintenance service indicator 371
Messages 329
Selecting 165
Showing messages 160
Distance to empty (range)
Calling up 177
Door control panel 30
Door entry lamps 147
Door handle 30
Door unlock
With Tele Aid* 288