61 Getting started
Parking and locking
Releasing seat belts
Press the seat belt release button
(page 47).
Allow the retractor to completely re-
wind the seat belt by guiding the latch
plate.
Locking
!Make sure the seat belt retracts fully so
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
Light Truck 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 that there
is no possibility of someone getting caught
in a door during closing.Warning!
G
When leaving the vehicle, always remove the
SmartKey or the SmartKey with
KEYLESS-GO* 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. Unsu-
pervised use of vehicle equipment may
cause an accident and/or serious personal
injury.
iIf you hear a warning signal you have
either
forgotten to turn off the lights be-
fore opening the driver’s door
In addition the message
Turn off
lamps
appears in the multifunction
display.
or
tried to turn off the engine while the
gear selector lever is not inP
In addition the message
Gear se-
lector lever to P
appears in the
multifunction display.
Turn off the lights or place the gear se-
lector lever inP.
62 Getting startedParking and locking
Exit the vehicle and close the doors and
the trunk.
Locking with the SmartKey
Press the lock button‹on the
SmartKey (
page 34).
With the trunk and all doors closed, all
turn signal lamps flash three times. The
locking knobs on the doors move
down. The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 96).Locking with KEYLESS-GO*
1Lock button
Press lock button1 on a door handle
or the lock button on the trunk lid
(page 105).
With the trunk and all doors closed, the
turn signal lamps flash three times. The
locking knobs on the doors move
down. The anti-theft alarm system is
armed.
For more information, see “Locking and
unlocking” (
page 96).
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
64 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
Airbags
Child seats
Child seat recognition
As independent systems, their protective
effects work in conjunction with each oth-
er.The 1 indicator lamp in the instrument
cluster comes on
for about 4 seconds when you turn the
SmartKey in the starter switch to posi-
tion 1 or press the KEYLESS-GO*
start/stop button once. It then goes
out briefly, comes on again and re-
mains lit until you start the engine, turn
the SmartKey to position 2 or press the
KEYLESS-GO start/stop button once
more (
page 37).
for about 4 seconds when you turn the
SmartKey in the starter switch to
position 2 or press the KEYLESS-GO*
start/stop button twice (
page 37).
for about 4 seconds when you start the
engine by turning the SmartKey in the
starter switch or by pressing the
KEYLESS-GO* start/stop button once
with the brake pedal depressed
(page 49).
The 1 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 de-
tected if the 1 indicator lamp
fails to go out after approximately
4 seconds
does not come on at all
comes on after the engine was started
or while driving
For more information, see the “Practical
hints” section (
page 341).
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 76).
65 Safety and Security
Occupant safety
Airbags
Warning!
G
In the event that the 1 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 cre-
ates a risk of rendering the SRS inoperative
or causing unintended airbag deployment.
Work on the SRS must therefore only be per-
formed by qualified technicians. Contact an
authorized Mercedes-Benz Center.
Warning!
G
Airbags are designed to reduce the potential
of injury and fatality in certain frontal im-
pacts (front airbags, driver-side knee bag) or
side impacts (head-thorax airbags). Howev-
er, no system available today can totally
eliminate injuries and fatalities.
The activation of the airbags temporarily re-
leases a small amount of dust from the air-
bags. This dust, however, is neither injurious
to your health, nor does it indicate a fire in
the vehicle. The dust might cause some tem-
porary breathing difficulty for people with
asthma or other breathing trouble. To avoid
this, you may wish to get out of the vehicle
a s so on as it i s s af e to do s o . I f yo u h av e any
breathing difficulty but cannot get out of the
vehicle after the airbag inflates, then get
fresh air by opening a window or door.
Warning!
G
To reduce the risk of injury when the front
airbags inflate, it is very important for the
driver and passenger to always be in a prop-
erly 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 ensure that it is properly
positioned on your body (
page 46).
Since the airbag 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 airbag.
Occupants who are unbelted, out of position
or too close to the airbag can be seriously
injured or killed by an airbag 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.
67 Safety and Security
Occupant safety
Warning!
G
Should you choose to place a child 12 years
old or under in the passenger seat of your
vehicle, you must properly use a
BabySmart
TM child restraint which will turn
off the passenger front airbag (
page 76).
BabySmart
TM will not, however, turn off any
side impact airbag.
It should be noted, however, that there is a
possibility for a head-thorax airbag related
injury if occupants, especially children, are
not properly seated or restrained when next
to a head-thorax airbag which needs to de-
ploy 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
head-thorax airbag inflates. This could
result in serious injuries or death should
the head-thorax airbag 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
passenger seat occupants to have the pas-
senger side head-thorax airbag deactivated,
then deactivation can be accomplished
upon your written election to do so at an au-
thorized Mercedes-Benz Center at an addi-
tional 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.
70 Safety and SecurityOccupant safetyFront airbags
Driver and passenger airbags are de-
ployed:
in the event of certain frontal impacts
if impact exceeds a preset deployment
threshold
independently of the head-thorax air-
bags
The airbags will not deploy in impacts
which do not exceed the system’s deploy-
ment thresholds. You will then be protect-
ed by the fastened seat belts.
The passenger airbag will only be deployed
if:
the passenger seat is occupied
the 7 indicator lamp on the glove
box is not lit (
page 78)
the impact exceeds a preset deploy-
ment threshold1Driver airbag
2Passenger airbag
3Knee bagKnee bag
The knee bag is located on the driver-side
lower instrument panel. It is designed to
operate together with the driver airbag in
certain frontal impacts exceeding a preset
threshold. The knee bag operates best in
conjunction with a properly positioned and
fastened seat belt.
!Do not place objects heavier than
20 lbs (9 kg) on the front passenger
seat. This could cause the front airbag
or the head-thorax airbag on the front
passenger side to deploy in a crash
which exceeds the system’s deploy-
ment threshold.
71 Safety and Security
Occupant safety
Head-thorax airbags
The head-thorax airbags are deployed:
on the impacted side of the vehicle
in impacts exceeding a preset deploy-
ment threshold
independently of the front airbags
The head-thorax airbags are not deployed
in impacts which do not exceed the sys-
tem’s deployment threshold.
The passenger head-thorax airbag will only
deploy if the system senses that the pas-
senger seat is occupied.
1Head-thorax airbag
Seat belts
When the engine is started, the seat belt
telltale< illuminates for a maximum of
6 seconds and a warning chime sounds to
remind you and your passenger to fasten
your seat belts.
If after these 6 seconds, the driver’s or the
passenger’s seat belt (with the passenger
seat occupied) are not fastened with all
doors closed,
and the vehicle speed does not exceed
15 mph (25 km/h), the seat belt
telltale< remains illuminated for as
long as either the driver’s or
passenger’s seat belt is not fastened
and the vehicle speed exceeds
15 mph (25 km/h), the seat belt
telltale< starts flashing and a
warning chime sounds with increasing
intensity until both the driver’s and
passenger’s seat belt are fastened, or
for a maximum of 60 seconds from
the time the vehicle speed exceeded 15 mph (25 km/h) if either
the driver’s or passenger’s seat belt
remains unfastened.
If the driver’s or passenger’s seat belt
remains unfastened after 60 seconds,
the seat belt telltale< stops flash-
ing and the warning chime stops
sounding. The seat belt telltale<
then continues to be illuminated for as
long as either the driver’s or passen-
ger’s seat belt are not fastened.
The seat belt telltale< will only go out
if both the driver’s and the passenger’s
seat belt (with the front passenger seat oc-
cupied) are fastened, or the vehicle is
standing still and a front door is opened.
For more information, see the “Practical
hints” section (
page 340).
72 Safety and SecurityOccupant safetyAlways wear your seat belt. All vehicle
occupants always need to have their seat
belts fastened and wear them properly.
In addition, applicable motor vehicle safety
laws require you to wear seat belts. Even
where this is not the case, we strongly rec-
ommend that all vehicle occupants have
their seat belts fastened and wear them
properly.
For information on fastening seat belts,
see “Fastening the seat belts” (
page 46).
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 76).
Warning!
G
Always fasten your seat belt before driving
off. Always make sure your passengers are
properly restrained, even pregnant women.
Failure to wear and properly fasten and po-
sition your seat belt greatly increases your
risk of injuries and their likely severity in an
accident. You and your passenger should al-
ways wear seat belts.
If you are ever in an accident, your injuries
can be considerably more severe without
your seat belt properly buckled. Without
your seat belt buckled, you are much more
likely to hit the interior of the vehicle or be
ejected from it. You can be seriously injured
or killed.
In the same crash, the possibility of injury or
death is lessened if you are properly wearing
your seat belt. Airbags can only protect as
they are designed if the occupants are prop-
erly wearing their seat belts (
page 65).
Warning!
G
Never ride in a moving vehicle with the seat
backrest in an excessively reclined position
as this can be dangerous. You could slide
under the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. This could cause serious or
even fatal injuries. The seat backrest and
seat belt provide the best restraint when the
wearer is in a nearly upright position and the
belt is properly positioned on the body.
Keep door storage compartments closed
while vehicle is in motion. Failure to do so
may cause the seat belt to catch at the rear
and prevent proper positioning of the seat
belt.