ContentsSafety and Security........................... 67
Occupant safety................................... 68
Air bags .......................................... 70
Occupant Classification System
(USA only) ...................................... 75
BabySmart
TM air bag deactivation
system (Canada only) ..................... 81
Seat belts ....................................... 82
Preventive occupant safety
(PRE-SAFE®) ................................... 86
Active head restraints .................... 87
Children in the vehicle .................... 88
Blocking of rear door window
operation ........................................ 95
Panic alarm .......................................... 96
Activating ....................................... 96
Deactivating ................................... 96
Driving safety systems ......................... 97
ABS ................................................ 97
BAS ................................................ 99
Adaptive Brake ............................... 99
EBP............................................... 100
ESP
®............................................. 100
Four wheel electronic traction
system (4MATIC) with the ESP
®... 105Anti-theft systems ............................. 106
Immobilizer .................................. 106
Anti-theft alarm system................ 106
Controls in detail............................. 109
Locking and unlocking ....................... 110
SmartKey ..................................... 110
SmartKey with KEYLESS-GO* ...... 113
Checking batteries in the
SmartKey or SmartKey with
KEYLESS-GO* .............................. 119
Loss of the SmartKey or
SmartKey with KEYLESS-GO* ...... 119
Opening the doors from the
inside ........................................... 119
Opening the trunk ........................ 120
Closing the trunk.......................... 122
Trunk emergency release ............. 125
Valet locking ................................ 126
Automatic central locking ............ 127
Locking and unlocking from the
inside ........................................... 127 Seats ................................................ 129
Front seat active head restraints . 129
Rear seat head restraints ............. 129
Lumbar support ........................... 131
Multicontour seat*....................... 131
Seat heating*............................... 132
Seat ventilation* .......................... 133
Memory function ............................... 134
Storing positions into memory ..... 135
Recalling positions from memory. 135
Storing exterior rear view mirror
parking position ........................... 136
Lighting ............................................. 137
Exterior lamp switch .................... 137
Combination switch ..................... 141
Corner-illuminating front fog
lamps* ......................................... 142
Hazard warning flasher ................ 144
Interior lighting in the front .......... 145
Interior lighting in the rear ........... 146
Door entry lamps ......................... 147
Trunk lamps ................................. 147
36 Getting startedThe “Getting started” section provides an
overview of the vehicle’s most basic
functions. First-time Mercedes-Benz own-
ers should pay special attention to the in-
formation 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 refer-
ences are located at the end of each seg-
ment.Unlocking
Unlocking with the SmartKeySmartKey with remote control 1‹Lock button
2ŠOpening button for trunk
3ŒUnlock button
4ÂPanic button (
page 96)
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Get in the vehicle and insert the
SmartKey in the starter switch.
For more information, see “SmartKey”
(
page 110).Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. A child’s un-
supervised access to a vehicle could result
in an accident and/or serious personal inju-
ry.
37 Getting started
Unlocking
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.
Pull an outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Get in the vehicle.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 113).
Starter switch positions
Warning!
G
When leaving the vehicle, always take the
SmartKey with KEYLESS-GO with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.i
To unlock the vehicle, the SmartKey with
KEYLESS-GO must be outside the vehicle, no fur-
ther than approximately 3 feet (1 meter) away
from the door.
Warning!
G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
65 Getting started
Parking and locking
Exit the vehicle and close all doors and
the trunk.
Locking with the SmartKey
After exiting the vehicle, press lock
button‹ on the SmartKey
(page 36).
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
For more information, see the “Controls in
detail” section (
page 110).Locking with KEYLESS-GO*
1Lock button
After exiting the vehicle, press lock
button1 on an outside door handle.
All turn signal lamps flash three
times.
An acoustic signal sounds three
times.
The locking knobs in the doors
move down.
The anti-theft alarm system is
armed.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 113).
i
If you hear a warning signal you have forgot-
ten to switch off the headlamps before opening
the driver’s door.
In addition the message
Switch off lights
appears in the multifunction display.
Switch off the headlamps.
67 Safety and Security
Occupant safety
Panic alarm
Driving safety systems
Anti-theft systems
96 Safety and SecurityPanic alarmAn audible alarm and flashing exterior
lamps will operate briefly.
1Â button
Activating
Press and hold button1 for at least
1 second.
Deactivating
Press button1 again.
or
Insert the SmartKey or the SmartKey
with KEYLESS-GO* in the starter
switch.
or
Press the KEYLESS-GO* start/stop
button.
The SmartKey with KEYLESS-GO* must
be inside the vehicle.
i
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 interfer-
ence, and
(2) this device must accept any interference re-
ceived, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
i
Canada 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 re-
ceived, 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.
106 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*
Turn off the engine by means of the
start/stop button on the gear selector
lever.
Open the driver’s door.Deactivating
With the SmartKey
Switch on the ignition (
page 38).
With KEYLESS-GO*
Start the engine by means of the
start/stop button on the gear selector
lever.
Anti-theft alarm system
Once the alarm system has been armed, a
visual and audible alarm is triggered when
someone opens:
a door
the trunk
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
the vehicle is opened using the
mechanical key
someone opens a door from the inside
i
In 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).
i
If the alarm stays on for more than
30 seconds, a call to the Response Center is ini-
tiated automatically by the Tele Aid system*
(
page 294) provided Tele Aid service was sub-
scribed to and properly activated, and that nec-
essary cellular service and GPS coverage are
available.
107 Safety and Security
Anti-theft systems
Arming the alarm system
The indicator lamp located in the central
locking switch in the center console.
1Indicator lamp
Lock the vehicle with the SmartKey or
KEYLESS-GO*.
The turn signal lamps flash three times
to indicate that the alarm system is
armed. The indicator lamp1 begins to
flash after approximately 30 seconds
after arming the alarm system.Disarming the alarm system
Unlock the vehicle with the SmartKey
or KEYLESS-GO*.
The turn signal lamps flash once to
indicate that the alarm system is
disarmed.Canceling the alarm
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press button Œ or ‹ on the
SmartKey.
With KEYLESS-GO*
Pull an outside door handle.
The SmartKey with KEYLESS-GO must
be within 3 ft (1 m) of the vehicle.
or
Press the KEYLESS-GO* start/stop
button (
page 39).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
i
If the turn signal lamps do not flash three
times, one of the following elements may not be
properly closed:
a door
the trunk
Close the respective element and lock the vehi-
cle again.
i
The alarm system will rearm automatically
after approximately 40 seconds if neither a door
nor the trunk was opened.