62 Safety and SecurityOccupant safetyIn this section you will learn the most im-
portant facts about the restraint systems
of the vehicle.
The restraint systems are:
Seat belts
Emergency tensioning device
Air bags
Child seats
Child seat recognition
Lower anchors and tethers for children
(LATCH)
As independent systems, their protective
effects work in conjunction with each
other.The 1 indicator lamp in the instrument
cluster comes on
for about 4 seconds when you turn the
SmartKey in the starter switch to
position1 or press the KEYLESS-GO*
start/stop button (
page 35) once. It
then goes out briefly, comes on again
and remains lit until you start the en-
gine.
for about 4 seconds when you start the
engine by turning the SmartKey or
pressing the KEYLESS-GO* start/stop
button.The restraint systems are fully operational
if the 1 indicator lamp is not lit when
the engine is running.
A malfunction in the system has been de-
tected if the 1 indicator lamp:
fails to extinguish after approximately
4 seconds
does not come on at all
comes on after the engine was started
comes on while driving
For safety reasons, we strongly recom-
mend that you visit an authorized
Mercedes-Benz Center immediately to
have the system checked.
For more information, see “Practical hints”
(
page 335).
iFor information on infants and children
traveling with you in the vehicle and re-
straint systems for infants and chil-
dren, see “Children in the vehicle”
(page 72).
iThe 1 indicator lamp remains lit if
the SmartKey is turned to position2
and left there or the KEYLESS-GO*
start/stop button is pressed twice. The
indicator lamp will go out when you
start the engine.
74 Safety and SecurityOccupant safetyBabySmart
TM air bag deactivation
system
The 58 indicator lamp is located on
the lower part of the center console.
158 indicator lampSpecial BabySmart
TM compatible child
seats, designed for use with the
Mercedes-Benz system and available at
any authorized Mercedes-Benz Center are
required for use with the BabySmart
TM
air bag deactivation system. With the spe-
cial child seat properly installed, the pas-
senger front air bag will not deploy.
The 58 indicator lamp1 located
on the lower part of the front center con-
sole will be illuminated, except with the
SmartKey removed or in starter switch
position0.Self-test BabySmart
TM without special
child seat installed
After turning the SmartKey in the starter
switch to position1 or2 or pressing the
KEYLESS-GO* start/stop button
(
page 35) once or twice, the 58
indicator lamp comes on for approximately
6 seconds and then goes out.
If the 58 indicator lamp should not
come on or is continuously lit, the system
is not functioning. You must see an autho-
rized Mercedes-Benz Center before seat-
ing any child on the front passenger seat.
For more information, see “Practical hints”
(page 336).
Do not leave children unattended in the ve-
hicle; even if the children are secured in a
child restraint system. Unsupervised chil-
dren in a child restraint system may use ve-
hicle equipment and cause an accident
and/or serious personal injury.
iThe system does not deactivate the
side impact air bag and the emergency
tensioning device.
79 Safety and Security
Panic alarm
Panic alarm
An audible alarm and blinking exterior
lamps will operate for approximately
21/2minutes.
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 starter switch.
or
Press the KEYLESS-GO* start/stop
button (
page 35).
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 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.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 interfer-
ence, and
(2) this device must accept any inter-
ference received, including interfer-
ence that may cause undesired
operation of the device.
Any unauthorized modification to this
device could void the user’s authority
to operate the equipment.
83 Safety and Security
Driving safety systems
For more information, see “Practical hints”
(page 332).Switching off the ESP
®
To improve the vehicle’s traction, switch
off the ESP
® in driving situations where it
would be advantageous to have the drive
wheels spin and thus cut into surfaces for
better grip such as:
when driving with snow chains
in deep snow
in sand or gravel
Warning!
G
The ESP
® cannot prevent the natural laws of
physics from acting on the vehicle, nor can
it increase the traction afforded. The ESP
®
cannot prevent accidents, including those
resulting from excessive speed in turns, or
hydroplaning. Only a safe, attentive, and
skillful driver can prevent accidents. The ca-
pabilities of an ESP
® equipped vehicle must
never be exploited in a reckless or danger-
ous manner which could jeopardize the us-
er’s safety or the safety of others.
iDistronic* is switched off when the
ESP
® engages.
iThe ESP
® will only function properly if
you use wheels of the recommended
tire size (page 410).
!Because of the ESP’s
® automatic oper-
ation, the engine and ignition must be
shut off (SmartKey in starter switch
position0 or1 or KEYLESS-GO*
start/stop button in position0 or1)
when
the parking brake is being tested on
a brake test dynamometer
the vehicle is being towed with the
front/rear axle raised
Active braking action through the ESP
®
may otherwise seriously damage the
brake system.
Warning!
G
The ESP
® should not be switched off during
normal driving other than in the circum-
stances described below. Disabling of the
system will reduce vehicle stability in stan-
dard driving maneuvers.
iDistronic* cannot be activated when
the ESP
® has been switched off.
85 Safety and Security
Anti-theft systems
Anti-theft systems
Immobilizer
The immobilizer prevents unauthorized
persons from starting your vehicle.
Activating
With the SmartKey
Remove the SmartKey from the starter
switch.
The immobilizer is activated.
With KEYLESS-GO*
Turn off the engine by means of the
KEYLESS-GO start/stop button
(page 35).
Open the driver’s door.
The immobilizer is activated.Deactivating
With the SmartKey
Insert the SmartKey in the starter
switch.
The immobilizer is deactivated.
With KEYLESS-GO*
Start the engine by means of the
KEYLESS-GO start/stop button
(page 35).
The immobilizer is deactivated.
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 activating
element (a door, for example) is immedi-
ately closed.
The alarm system will also be triggered
when
someone attempts to raise the vehicle
the vehicle is opened using the
mechanical key
someone opens a door from the inside
someone opens the trunk with the
emergency release button
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).
87 Safety and Security
Anti-theft systems
Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press the Œ or ‹ button on the
SmartKey.
The alarm is canceled.
With KEYLESS-GO*
Grasp 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 but-
ton (
page 35).
The SmartKey with KEYLESS- GO must
be inside the vehicle.
The alarm is canceled.
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.Arming tow-away alarm
Lock your vehicle with the SmartKey or
KEYLESS-GO*.
The tow-away alarm is automatically
armed after about 30 seconds.
Disarming tow-away alarm
To prevent triggering the tow-away alarm,
switch off the tow-away alarm feature be-
fore towing the vehicle, or when parking on
a surface subject to movement, such as a
ferry or auto train.
iThe tow-away protection alarm is trig-
gered, for example, if the vehicle is lift-
ed on one side.
If the alarm stays on for more than
30 seconds, a call to the Response
Center is initiated automatically by the
Tele Aid system (
page 241) provided
Tele Aid service was subscribed to and
properly activated, and that necessary
cellular service and GPS coverage are
available.
88 Safety and SecurityAnti-theft systemsThe button is located on the upper part of
the front center console.
1Indicator lamp
2Tow-away alarm off button
Switch off the ignition and remove the
SmartKey from the starter switch.
Press button2.
Indicator lamp1 in the button comes
on briefly.
Exit and lock your vehicle with the
SmartKey or (vehicles with
KEYLESS-GO*) with the lock button an
each outside door handle or trunk lid.
The tow-away alarm remains disarmed
until you lock your vehicle again.
Canceling the alarm
To cancel the alarm:
With the SmartKey
Insert the SmartKey in the starter
switch.
or
Press the Œ or ‹ button on the
SmartKey.
The alarm is canceled.With KEYLESS-GO*
Grasp 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 but-
ton (
page 35).
The SmartKey with KEYLESS-GO must
be inside the vehicle.
The alarm is canceled.
iYou cannot disarm the tow-away alarm
if the ignition is switched on.
96 Controls in detailLocking and unlockingImportant notes on using KEYLESS-GO
You can also use the SmartKey with
KEYLESS-GO like a normal
SmartKey (
page 90).
You can combine KEYLESS-GO func-
tions with normal SmartKey functions
(e.g. unlocking with KEYLESS-GO and
locking with the ‹button).
Always carry the SmartKey with
KEYLESS-GO with you.
Never store the SmartKey with
KEYLESS-GO together with:
Electronic items such as a cellular
phone or another SmartKey with
KEYLESS-GO
Metallic objects such as coins or
metal foil
Doing so could impair the function of
the KEYLESS-GO system.
To lock or unlock the vehicle, the
SmartKey with KEYLESS-GO must be
located outside the vehicle within ap-
proximately 3 ft. (1 m) of a door or the
trunk lid.
In order to start the engine with the
SmartKey with KEYLESS-GO:
The SmartKey with KEYLESS-GO
must be located in the vehicle.
All doors must be closed.
The brake pedal must be firmly de-
pressed. Do not depress the accel-
erator.
If you have started the engine with the
KEYLESS-GO start/stop button
(page 35), you can only turn it off
again with this button, even if you have
put the SmartKey in the starter switch
in the meantime.
This does not apply if, after starting, the
gear selector lever is still in positionP
and the SmartKey is then inserted in
the starter switch. The SmartKey will
then have priority over the
KEYLESS-GO function and the vehicle’s
electrical system will operate accord-
ing to the position of the SmartKey in
the starter switch, even stopping the
engine.
If the SmartKey with KEYLESS-GO is
positioned farther away from the vehi-
cle, the system may no longer recog-
nize the SmartKey with KEYLESS-GO.
The vehicle then cannot be locked or
the engine started via the KEYLESS-GO
system.