
1, 2, 3 ...
115V AC Socket  ................................. 198
4-ETS see ETS/4-ETS                                          
4MATIC
see All-wheel drive (4MATIC)                    
911 Emergency calls  ........................ 161
A
ABS (Antilock Brake System)  
Indicator lamp ................................ 289
Messages in the multifunction
display  ................................... 271, 272
Accessory weight  .............................. 239
Accidents  ........................................... 101
Air bags  ........................................... 37
Emergency calls (Tele Aid)  .............201
Emergency calls (Telephone)  .........161
NECK-PRO active front head
restraints   ........................................ 51
Active Bi-Xenon headlamps
see Headlamps                                         
Additives  
Engine oil  ....................................... 336
Gasoline ......................................... 337
Address change  ................................... 21
Advanced Tire Pressure
Monitoring System (Advanced
TPMS)  ................................................. 224
Messages in the multifunction
display  ........................................... 268
Air bags  ................................................ 37
Emergency call upon deployment  ..201
Front, driver and passenger  .............40
Front passenger front air bag off
indicator lamp (Canada
only)  ........................................ 45, 297
Front passenger front air bag off
indicator lamp (USA only)  ........42, 298
Messages in the multifunction
display  ........................................... 264
OCS (Occupant Classification
System)  ........................................... 42
Safety guidelines  ............................. 39
Side impact  ...................................... 40
Window curtain  ................................ 41
Air conditioning refrigerant and
lubricant  ............................................. 336
Air distribution  .................................. 181
Air pressure see Tire inflation pressure                        
Air pressure (tires)  ............................ 239
Air pump (electric)  ............................ 315
Air recirculation mode  ...................... 183
Air volume  .......................................... 182
Alarm system see Anti-theft systems                              
All-wheel drive (4MATIC)  .................. 171
Alternator  
Messages in the multifunction
display  ........................................... 281
Alternator (Technical data)
see Vehicle specification                          
Anticorrosion/antifreeze  .................. 338
Anti-theft systems  ............................... 63
Anti-theft alarm system  ...................63
Immobilizer  ...................................... 63
Aquaplaning
see Hydroplaning                                      
Armrest, front  
Storage compartments  ..................193
Armrest, rear  
Storage compartment  ....................193
Ashtrays  ............................................. 196
Aspect ratio (tires)  ............................ 239
Audio menu  ........................................ 115
Audio system  ..................................... 125
Adjusting volume  ........................... 133
Audio and telephone operation  ......125
Audio AUX mode ............................ 154
Bluetooth ®
 settings  ....................... 135
CD mode ........................................ 146
Components  .................................. 126
MP3 mode  ..................................... 146
Operating safety  ............................ 126
Radio operation  ............................. 136
Satellite radio  ................................ 140
Switching on and off  ......................132
System settings  ............................. 135
Telephone  ...................................... 155
Auto-dimming rear view mirrors  ........ 84
Automatic central locking  .......... 70, 124
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Front passenger front air bag off
indicator lamp (Canada
only)  ........................................ 45, 297
Front passenger front air bag off
indicator lamp (USA only)  ........42, 298
Infant and child restraint systems .... 54
Introduction  ..................................... 36
ISOFIX (Child seat anchors –
LATCH-type) ..................................... 57
OCS (Occupant Classification
System)  ........................................... 42
Seat belts  .................................. 39, 47
OCS (Occupant Classification
System)  ................................................ 42
Self-test  ........................................... 45
Odometer  ........................................... 113
Oil, oil level see Engine oil                                            
On-board computer
see Control system                                   
One-touch gearshifting  ..................... 107
Operating safety  .................................. 22
Ornamental moldings, cleaning  ....... 254
Overhead control panel  ...................... 32
P
Paintwork, cleaning  .......................... 252
Paintwork code  ................................. 329
Panic alarm  .......................................... 59
Panorama roof with power tilt/
sliding panel  ...................................... 185
Cleaning ......................................... 255
Operation ....................................... 185
Roller sunblinds  ............................. 184
Synchronizing  ................................ 186
Parcel nets  ......................................... 188
Parking  ............................................... 101
Parktronic system  ..........................172
Parking brake  .................................... 102
Messages in the multifunction
display  ........................................... 272
Parking position  
Exterior rear view mirrors  ................85
Transmission position  ....................104
Parktronic system  
Cleaning system sensors  ...............254
Malfunction .................................... 174
Minimum distance  .........................173
Sensor range  ................................. 172
Switching on/off  ........................... 174
System sensors  ............................. 172
Warning indicators  .........................173
Parts service  ...................................... 328
PASS AIR BAG OFF indicator lamp
(Canada only) see Front passenger front air bag
off indicator lamp (Canada only)               
PASS AIR BAG OFF indicator lamp
(USA only) see Front passenger front air bag
off indicator lamp (USA only)                    
Passenger safety
see Occupant safety                                 
Pedals  ................................................. 244
Phone see Telephone                                           
Plastic parts, cleaning  ...................... 256
Power assistance  .............................. 244
Power outlets  .................................... 197
Power seats see Seats                                                  
Power steering  
Messages in the multifunction
display  ........................................... 279
Power tailgate  
Closing  ............................................. 72
Opening  ........................................... 72
Power washer  .................................... 252
Power windows  ................................... 95
Cleaning ......................................... 255
Operation  ......................................... 95
Rear door window, override
switch  .............................................. 58
Synchronizing  .................................. 96
Practical hints  ................................... 260
Problems  
While driving  .................................. 101
With vehicle  ..................................... 22
With wipers  ...................................... 95
Product information  ............................ 19
Production options weight  ............... 240
Program mode selector switch  
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Center console
Lower part 
FunctionPage:Ashtray196Cigarette lighter197;Gear selector lever for
automatic transmission103
=Cup holder195?Front armrest storage
compartments192
AAudio controller129COMAND controller (see
separate operating
instructions)
BProgram mode selector
switch for automatic
transmission106
Upper part FunctionPage:Hazard warning flasher
switch90
;Alarm system indicator
lamp63
=Front passenger front air
bag off indicator lamp, USA
only
42,
298
Front passenger front air
bag off indicator lamp,
Canada only
45,
297
?Electronic Stability
Program (ESP®) switch63
AAudio system125orCOMAND system, see
separate operating
instructions
BSeat heating, front
passenger side81
CParktronic system
deactivation switch174
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Vehicle equipment ..............................36
Occupant safety ..................................36
Panic alarm ..........................................59
Driving safety systems .......................59
Anti-theft systems ..............................63
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The rear door windows can no longer be
operated using the respective switch
located in the rear doors.
You can still operate the rear door windows
using the switches located on the door
control panel of the driver’s door.
XDeactivating: Press override switch :
again.
The rear door windows can be operated
again using the respective switch located
in the rear doors.
For more information on power windows, see
the “Controls in detail” section
(Y page 95).
Panic alarm
XActivating: Press and hold !
button : for at least 1 second.
An audible alarm and flashing exterior
lamps will operate.
XDeactivating: Press ! button : again.
or
XInsert the SmartKey into the starter switch.
or
XPress the KEYLESS-GO start/stop button.
The SmartKey with KEYLESS-GO must be
inside the vehicle.
iUSA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any
interference received, including
interference that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
iCanada only:
This device complies with RSS-210 of
Industry Canada. Operation is subject to
the following two conditions:
1.This device may not cause interference,
and
2. this device must accept any
interference received, including
interference that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
Driving safety systems
Introduction
This section contains information about the
following driving safety systems:
RABS (Antilock Brake System)
RBAS (Brake Assist System)
REBP (Electronic Brake Proportioning)
RESP® (Electronic Stability Program)
iIn winter operation, the maximum
effectiveness of most of the driving
systems described in this section is only
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Adapt your speed and driving to the prevailing
road conditions and to the non-operating
status of the ESP ®
.
!  Avoid spinning of a drive wheel for an
extended period with the ESP ®
 switched
off. This may cause serious damage to the
drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
Switching on the ESP ®XPress ESP
®
 switch  : until the ESP ®
warning lamp  d in the instrument
cluster goes out.
You are now again in normal driving mode
with the ESP ®
 switched on.
ESP ®
 trailer stabilization 
If the trailer you are towing should begin to
sway, the rig can only be stabilized by
immediately applying the brakes hard.
Steering during this maneuver will not help to
stabilize the rig.
The ESP ®
 will assist you in such situations.
The ESP ®
 recognizes when the trailer starts
swaying.It will apply the brakes and limit
engine output and thus allow the vehicle-
trailer combination to stabilize.
The ESP ®
 trailer stabilization is functional at
vehicle speeds above approximately 40 mph
(65 km/h) when the ESP ®
 is switched on.
GWarning!
The system will not be able to assist when the
trailer jackknifes
R if the ESP ®
 has switched off due to a
malfunction
R on wet or icy roads
R on roads with slippery surface
R in sand or gravel
Trailers with a high center of gravity may tip
over before the system recognizes swaying of
the trailer.
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. The
engine can be started by anyone with a valid
SmartKey that is left inside the vehicle.
Activating
XWith SmartKey:  Remove the SmartKey
from the starter switch.XWith KEYLESS-GO:  Turn off the engine and
open the driver’s door.
Deactivating
XSwitch on the ignition.
i Starting the engine will also deactivate
the immobilizer.
In the event that the engine cannot be
started (yet the vehicle’s battery is
charged), the system is not operational.
Contact an authorized Mercedes-Benz
Center or call  1-800-FOR-MERCedes  (in the
USA) or 1-800-387-0100 (in Canada).
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens
R a door
R the tailgate
R the hood
The alarm will stay on even if the activating
element, a door, for example, is closed
immediately.
The alarm system will also be triggered when
R the vehicle is opened with the mechanical
key
R a door is opened from the inside
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To cancel the alarm after it has been
triggered, see “Canceling the alarm”
(Y page 64).
iIf the alarm stays on for more than
30 seconds, the Tele Aid system initiates a
call to the Customer Assistance Center
automatically. The Tele Aid system will
initiate the call provided that
Ryou have subscribed to the Tele Aid
service
Rthe Tele Aid service has been activated
properly
Rthe necessary mobile phone, power
supply and GPS coverage are available
XArming: Lock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash three times and
an acoustic warning sounds three times to
indicate that the vehicle is locked. Indicator
lamp : flashes to indicate that the alarm
system is armed.
iIf the turn signal lamps do not flash three
times and the acoustic warning does not
sound three times, a door or the tailgate
may not be properly closed.
Close the respective element.
XDisarming: Unlock the vehicle with the
SmartKey or with KEYLESS-GO.
The turn signal lamps flash once and an
acoustic warning sounds once to indicate
that the alarm system is disarmed.
iUnless you open a door or the tailgate
within approximately 40 seconds after
unlocking the vehicle:
RThe vehicle will be locked again.
RThe anti-theft alarm system will be
rearmed.
Canceling the alarm
To cancel the alarm, do one of the following:
XInsert the SmartKey into the starter switch.XPress button % or & on the
SmartKey.
In vehicles with KEYLESS-GO:
XGrasp an outside door handle.
The SmartKey must be within 3 ft (1 m) of
the vehicle.
XPress the KEYLESS-GO start/stop button.
The SmartKey must be inside the vehicle.
64Anti-theft systemsSafety and security
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Vehicle equipment
iThis Operator’s Manual describes all
features, standard or optional, potentially
available for your vehicle at the time of
purchase. Please be aware that your
vehicle might not be equipped with all
features described in this manual.
Locking and unlocking
Notes
GObserve Safety notes, see page 53.
When unlocking or locking the vehicle with
the SmartKey an acoustic signal sounds. The
acoustic signal is activated at the factory. If
you wish to deactivate the feature, or adjust
its signal volume, contact an authorized
Mercedes-Benz Center.
When unlocking the vehicle, all turn signal
lamps flash once. An acoustic signal sounds
once, and the locking knobs in the doors
move up. The anti-theft alarm system is
disarmed.
When locking the vehicle, all turn signal lamps
flash three times. An acoustic signal sounds
three times, and the locking knobs in the
doors move down. The anti-theft alarm
system is armed.
All doors and the tailgate must be closed.
If you cannot lock or unlock the vehicle with
the SmartKey, the batteries in the SmartKey
are discharged, the SmartKey is
malfunctioning, or the vehicle battery is
drained.
XCheck the batteries in the SmartKey
(Y page 69) and replace them if
necessary.
XUse the mechanical key to unlock the
driver’s door (Y page 299).
XUse the mechanical key to lock the vehicle
(Y page 299).
XHave the vehicle battery and the vehicle
battery connections checked at an
authorized Mercedes-Benz Center.
If the SmartKey is malfunctioning, contact
Roadside Assistance or an authorized
Mercedes-Benz Center.
SmartKey
Your vehicle comes supplied with two
SmartKeys, each with remote control and a
removable mechanical key.
The SmartKey centrally locks and unlocks
Rthe doors
Rthe tailgate
Rthe fuel filler flap
: &Lock button; FUnlock button for tailgate= %Unlock button
iUSA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must accept any
interference received, including
interference that may cause undesired
operation.
66Locking and unlockingControls in detail
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