Page 4 of 400

ContentsSafety and Security........................... 55
Occupant safety................................... 56
Airbags ........................................... 57
Seat belts ....................................... 62
Children in the vehicle .................... 65
Blocking of rear door window
operation ........................................ 72
Panic alarm* ........................................ 73
Activating ....................................... 73
Deactivating ................................... 73
Driving safety systems ......................... 74
ABS ................................................ 74
BAS ................................................ 75
ESP ................................................. 76
Four wheel electronic traction
system (4MATIC) with the ESP ....... 79
Anti-theft systems................................ 80
Immobilizer..................................... 80
Anti-theft alarm system* ................ 80
Tow-away alarm* ........................... 81
Controls in detail............................... 83
Locking and unlocking ......................... 84
SmartKey ....................................... 84
Opening the doors from
the inside ....................................... 87
Opening the tailgate ....................... 87
Closing the tailgate ........................ 88
Automatic central locking .............. 88
Locking and unlocking from
the inside ....................................... 89
Seats ................................................... 90
Easy-entry/exit feature* ................ 90
Removing and installing front seat
head restraints ............................... 91
Rear seat head restraints ............... 92
Multicontour seat* ......................... 95
Heated seats* ................................ 95
Memory function* ............................... 97
Storing positions into memory ....... 98
Recalling positions from memory ... 98
Storing exterior rear view mirror
parking position ............................. 99Lighting ............................................. 100
Exterior lamp switch .................... 100
Combination switch ..................... 103
Hazard warning flasher ................ 104
Interior lighting ............................ 105
Door entry lamps ......................... 106
Instrument cluster ............................. 107
Instrument cluster illumination .... 107
Coolant temperature display........ 108
Trip odometer .............................. 109
Tachometer .................................. 109
Outside temperature indicator ..... 109
Control system .................................. 111
Multifunction display.................... 111
Multifunction steering wheel........ 112
Menus .......................................... 114
Standard display menu ................ 116
AUDIO menu ................................ 116
NAVI* menu ................................. 119
Malfunction memory menu .......... 120
Settings menu .............................. 121
Trip computer menu..................... 134
TEL menu* ................................... 136
Page 25 of 400
25 At a glance
Center console
Center console
Upper part
Item
Page
1
Seat heater*, driver’s side
95
2
Rear window
wiper/washer
49
3
ESP control switch
78
4
Hazard warning flasher
switch – switching on/off
104
5
Central locking switch
89
6
Anti-theft alarm system
indicator lamp
80
Tow-away alarm switch
81
Item
Page
7
Seat heater*, passenger
side
95
8
PASS. AIRBAG OFF
indicator lamp
68,
279
9
Audio system,
or
169
COMAND* (see separate
operating instructions)
a
Climate control
150
Automatic climate control*
158
Rear window defroster
149
Page 30 of 400
30 Getting startedUnlocking
The “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section will provide you with further
information. The corresponding page
references are located at the end of each
segment.
Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŒUnlock button
3ÂPanic button* (
page 73)
Press unlock buttonŒ on the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
Get in the vehicle and insert the
SmartKey in the starter switch.
For more information, see “Locking and
unlocking” (
page 84).
iCanada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button*3.
Page 55 of 400
55 Safety and Security
Occupant safety
Panic alarm*
Driving safety systems
Anti-theft systems
Page 73 of 400
73 Safety and Security
Panic alarm*
Panic alarm*
An audible alarm and flashing exterior
lamps will operate for approximately
21/2minutes.
1Â button
Activating
Press and hold button1 for at least
one second.
Deactivating
Press button1 again.
or
Insert SmartKey in starter switch.
iCanada only:
Only vehicles equipped with an
anti-theft alarm system* have
SmartKeys with integrated panic
button1.
iFor operation in the USA 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 inter-
ference received, including interfer-
ence that may cause undesired
operation.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.
Page 80 of 400

80 Safety and SecurityAnti-theft systems
Anti-theft systemsImmobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
Removing the SmartKey from the
starter switch activates the
immobilizer.
Deactivating
Inserting the SmartKey in the starter
switch deactivates the immobilizer.
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
activating element (a door, for example) is
immediately closed.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
opening the vehicle with the
mechanical keyArming the alarm system
The alarm system is armed after locking
the vehicle with the SmartKey. The turn
signal lamps flash three times to indicate
that the alarm system is activated. A red
indicator lamp in the switch for the
tow-away alarm (
page 81) begins to
flash after approx. ten seconds after
arming the alarm system.
iIn case 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).
iIf the alarm stays on for more than
20 seconds, an emergency call is
initiated automatically by the Tele Aid
system* (
page 222) provided
Tele Aid service was subscribed to and
properly activated, and that necessary
cellular service and GPS coverage are
available.
Page 81 of 400

81 Safety and Security
Anti-theft systems
Disarming the alarm system
The alarm system is disarmed when you
unlock your vehicle with the SmartKey. The
turn signal lamps flash once to indicate
that the alarm system is deactivated.
Canceling the alarm
To cancel the alarm:
Insert the SmartKey in the starter
switch.
or
Press theŒ or‹ button on the
SmartKey.
Tow-away alarm*
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
iIf the turn signal lamps do not flash
three times, one of the following
elements may not be properly closed:
a door
the tailgate
Close the respective element and lock
the vehicle again.
iThe alarm system will rearm automati-
cally after approximately 40 seconds if
no door or the tailgate lid was opened.
iThe tow-away protection alarm is
triggered, for example, if the vehicle is
lifted on one side.
If the alarm stays on for more than
20 seconds, an emergency call is
initiated automatically by the Tele Aid
system* (
page 222) provided
Tele Aid service was subscribed to and
properly activated, and that necessary
cellular service and GPS coverage are
available.
Page 82 of 400
82 Safety and SecurityAnti-theft systemsArming tow-away alarm
When you lock your vehicle, the tow-away
alarm is automatically armed after about
30 seconds.
When you unlock your vehicle, the
tow-away protection disarms
automatically.
Disarming tow-away alarm
To prevent triggering the tow-away alarm,
switch off the tow-away alarm feature
before towing the vehicle, or when parking
on a surface subject to movement, such as
a ferry or auto train.The switch is located on the center
console.
1Tow-away alarm off switch
2Indicator lamp
Switch off the ignition and remove the
SmartKey.
Press upper switch position1.
Indicator lamp2 in switch comes on
briefly.
Exit and lock your vehicle with the
SmartKey.
The tow-away alarm remains disarmed
until you lock your vehicle again.
Canceling the alarm
To cancel the alarm:
Insert the SmartKey in the starter
switch.
or
Press theŒ or‹ button on the
SmartKey.
iYou cannot disarm the tow-away alarm
while the ignition is switched on.