Page 57 of 473

56 Getting started
Parking and locking
Turning off engine
Place the gear selector lever in
positionP.
Turn the SmartKey in the starter switch
to position0.
Remove the SmartKey from the starter
switch.
The immobilizer is activated.
Releasing seat belts
Press the seat belt release button
(
page 43).
Allow the retractor to completely
rewind the seat belt by guiding the
latch plate.
Locking
i
Always set the parking brake in addi-
tion to shifting to positionP.
On slopes, turn the front wheels
towards the road curb.
i
The SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!
M a k e s u r e t h e s e a t b e l t r e t r a c t s f u l l y s o
that the seat belt and/or latch plate
cannot get caught or pinched in the
door or in the seat mechanism. This
can damage the seat belt and impair
the effectiveness of the seat belt,
and/or cause damage to the door
and/or door trim panel. Such damage
is not covered by the Mercedes-Benz
Limited Warranty.
Damaged seat belts must be replaced.
Contact an authorized Mercedes-Benz
Center.
Warning!G
To prevent possible personal injury, always
keep hands and fingers away from the door
openings when closing the doors. Be espe-
cially careful when small children are
around.
Before closing doors, make sure there is no
possibility of someone getting caught in a
door during closing.
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. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 58 of 473
57 Getting started
Parking and locking
Exit the vehicle and close all doors.
After exiting the vehicle, press the lock
button‹ on the SmartKey
(
page 32).
All turn signal lamps flash three
times.
An acoustic signal sounds three
times (if equipped and feature acti-
vated).
For more information, see “Factory
setting” (
page 96).
The locking knobs in the doors
move down.
The anti-theft alarm system* is
armed.For more information, see “Locking and
unlocking” (
page 94).i
With the SmartKey removed and the
driver’s door open, a warning sounds if
the vehicle’s exterior lamps are not
switched off.
The message
Switch off lights ap-
pears in the multifunction display.
Page 59 of 473
Page 60 of 473
59 Safety and Security
Occupant safety
Panic alarm*
Driving safety systems
Anti-theft systems
Page 61 of 473

60 Safety and Security
Occupant safety
In 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.The1 indicator lamp in the instrument
cluster (
page 24) comes on:
for about 4 seconds when you turn the
SmartKey in the starter switch to
position1.
for about 4 seconds when you start the
engine by turning the SmartKey.The1 indicator lamp goes out shortly
after you start the engine. This shows that
the restraint systems are operational.
A malfunction in the system has been
detected if the1 indicator lamp:fails to extinguish after approximately
4 seconds.
does not come on at all.
comes on after the engine was started
or while driving.
For safety reasons, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to
have the system checked.
For more information, see “Practical hints”
(
page 356).i
For information on infants and children
traveling with you in the vehicle and
restraint systems for infants and
children, see “Children in the vehicle”
(
page 72).
i
The1 indicator lamp remains lit if
the SmartKey in the starter switch is
turned to position2 and left there. The
indicator lamp will go out when you
start the engine.
Page 62 of 473

61 Safety and Security
Occupant safety
Air bags
Warning!G
In the event that the1 indicator lamp
comes on during driving or does not come
on at all, the SRS self-check has detected a
malfunction. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have
the system checked; otherwise the SRS may
not be activated when needed in an acci-
dent, which could result in serious or fatal
injury, or it might deploy unexpectedly and
unnecessarily which could also result in
injury.
In addition, improper work on the SRS
creates a risk of rendering the SRS inopera-
tive or causing unintended air bag deploy-
ment. Work on the SRS must therefore only
be performed by qualified technicians. Con-
tact an authorized Mercedes-Benz Center.Warning!G
Air bags are designed to reduce the poten-
tial of injury and fatality in certain frontal
impacts (front air bags), or side impacts
(front side impact air bags, rear side impact
air bags * and head protection window cur-
tain air bags). However, no system available
today can totally eliminate injuries and fatal-
ities.
The activation of the air bags temporarily
releases a small amount of dust from the
air bags. This dust, however, is neither inju-
rious to your health, nor does it indicate a
fire in the vehicle. The dust might cause
some temporary breathing difficulty for peo-
ple with asthma or other breathing trouble.
To avoid this, you may wish to get out of the
vehicle as soon as it is safe to do so. If you
have any breathing difficulty but cannot get
out of the vehicle after the air bag inflates,
then get fresh air by opening a window or
door.
Warning!G
To reduce the risk of injury when the front
air bags inflate, it is very important for the
driver and front passenger to always be in a
properly seated position and to wear your
seat belts.
For maximum protection in the event of a
collision always be in normal seated position
with your back against the backrest. Fasten
your seat belt and make sure that it is prop-
erly positioned on your body.
Since the air bag inflates with considerable
speed and force, a proper seating and hands
on steering wheel position will help to keep
you at a safe distance from the air bag.
Occupants who are unbelted, out of position
or too close to the air bag can be seriously
injured or killed by an air bag as it inflates
with great force in the blink of an eye:
Sit properly belted in a nearly upright
position with your back against the seat
backrest.
Page 63 of 473

62 Safety and Security
Occupant safety
Adjust the driver seat as far as possible
rearward, still permitting proper opera-
tion of vehicle controls. The distance
from the center of the driver’s breast-
bone to the center of the air bag cover
on the steering wheel must be at least
10 in (25 cm) or more. You should be
able to accomplish this by a combina-
tion of adjustments to the seat and
steering wheel. If you have any prob-
lems, please see an authorized
Mercedes-Benz Center.
Do not lean with your head or chest
close to the steering wheel or dash-
board.
Keep hands on the outside of steering
wheel rim. Placing hands and arms in-
side the rim can increase the risk and
potential severity of hand/arm injury
when driver front air bag inflates.
Adjust the front passenger seat as far as
possible rearward from the dashboard
when the seat is occupied.
Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door or the rear
side trim panel where the front side im-
pact air bag and/or the rear side impact
air bag* inflates. This could result in se-
rious injuries or death should the air bag
be triggered. Always sit nearly upright,
properly use the seat belts and appropri-
ate size infant or child restraint system.
Children 12 years old and under must
never ride in the front seat, except in a
Mercedes-Benz authorized
BabySmart
TM compatible child seat,
which operates with the BabySmartTM
system installed in the vehicle to deacti-
vate the passenger front air bag when it
is properly installed. Otherwise they will
be struck by the air bag when it inflates
in a crash. If this happens, serious or fa-
tal injury will result.
Failure to follow these instructions can
result in severe injuries to you or other
occupants.
If you sell your vehicle, it is important that
you make the buyer aware of this safety
information. Be sure to give the buyer this
Operator’s Manual.
Page 64 of 473

63 Safety and Security
Occupant safety
Warning!G
Accident research shows that the safest
place for children in an automobile is in the
rear seat. Should you choose to place a child
12 years old or under in the front passenger
seat of your vehicle, you must properly use
a BabySmart
TM child restraint which will
turn off the passenger front air bag.
BabySmart
TM will not, however, turn off any
side impact air bag (front side impact
air bag and/or rear side impact air bag*).
It should be noted that with respect to both
front side impact air bags and rear side im-
pact air bags* there is a possibility for a side
air bag related injury if occupants, especial-
ly children, are not properly seated or re-
strained when next to a side air bag which
needs to deploy rapidly in a side impact in
order to do its job.
To help avoid the possibility of injury, please
follow these guidelines:
(1) Occupants, especially children, should
never place their bodies or lean their
heads in the area of the door where the
front side impact air bag and/or rear
side impact air bag* inflates. This could
result in serious injuries or death should
the front side impact air bag and/or rear
side impact air bag* be activated.
(2) Always sit nearly upright, properly use
the seat belts and use an appropriately
sized infant or child restraint system for
all children 12 years old or under.
(3) Always wear seat belts properly.
If you believe that, even with the use of
these guidelines, it would be safer for your
rear seat occupants to have both rear door
mounted side air bags* deactivated, then
deactivation can be accomplished upon
your written request to do so at an autho-
rized Mercedes-Benz Center at an additional
cost.Please contact your local authorized
Mercedes-Benz Center or call our Customer
Assistance Center at 1-800-FOR-MERCedes
(1-800-367-6372) for details.
i
Air bags are designed to activate only
in certain frontal impacts (front
air bags) and in side impacts (front side
impact air bags, rear side impact
air bags* and head protection window
curtain air bags) which exceed preset
thresholds.
Only during these types of impacts, if of
sufficient severity to meet the deploy-
ment tresholds, will they provide their
supplemental protection.
The driver and passengers should
always wear their seat belts. Otherwise
it is not possible for air bags to provide
their supplemental protection.