Page 36 of 464

36 Getting startedUnlocking
For information on starting the engine, see
(page 47).
iWhen you switch on ignition, the indi-
cator and warning lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. This indicates that the respective
system is operational. The indicator
and warning lamps (except high beam
headlamp indicator lamp and turn sig-
nal indicator lamps if activated) should
go out when the engine is running.iVehicles with automatic transmission*:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!If the SmartKey cannot be turned in the
starter switch, the vehicle battery may
not be sufficiently charged.
Check the vehicle battery and
charge it if necessary (
page 396).
Get a jump start (
page 399).
To prevent accelerated vehicle battery
discharge or a completely discharged
vehicle battery, always remove the
SmartKey from the starter switch when
the engine is not in operation.
Page 37 of 464

37 Getting started
Adjusting
Adjusting
Seats
The seats can be adjusted either manually
or electrically, depending on the vehicle’s
equipment.
For more information on seats, see “Seats”
(page 99).Warning!
G
All seat, head restraint, steering wheel, and
rear view mirror adjustments, as well as fas-
tening of seat belts, must be done before
the vehicle is put into motion.iThe memory function* (
page 103)
lets you store the setting for power
seats*, steering wheel adjustment
(electrical)*, and exterior rear view mir-
rors.
Warning!
G
Do not adjust the driver seat while driving.
Adjusting the seat while driving could cause
the driver to lose control of the vehicle.
Never ride in a moving vehicle with the seat
back in an excessively reclined position as
this can be dangerous. You could slide un-
der the seat belt in a collision. If you slide
under it, the belt would apply force at the ab-
domen or neck. That could cause serious or
fatal injuries. The seat back and seat belts
provide the best restraint when the wearer
is in a nearly upright position and belts are
properly positioned on the body. Your seat
must be adjusted so that you can correctly
fasten your seat belt (
page 44).
Never place hands under the seat or near
moving parts while the seat is being
adjusted.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle.
Even with the SmartKey removed from the
starter switch, the power seats* can be op-
erated when the respective door is open.
Therefore, do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equip-
ment may cause an accident and/or serious
personal injury.
Page 38 of 464

38 Getting startedAdjusting
Manual seat adjustment
1Seat fore and aft adjustment
2Seat height
3Backrest tiltSeat fore and aft adjustment
Pull handle1.
Slide the seat to the desired position.
Adjust seat to a comfortable seating
position that allows you to reach the
accelerator/ brake pedal safely. The
position should be as far rearward as
possible, consistent with ability to
properly operate controls.
Allow handle1 to reengage with an
audible click.
Check for proper engagement before
driving.
Warning!
G
Children 12 years old and under must never
ride in this vehicle, except in a
Mercedes-Benz authorized BabySmart
TM1
compatible child seat, which operates with
the BabySmart
TM system installed in the ve-
hicle to deactivate 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 fatal injury will result.
Infants and small children must be seated in
an appropriate BabySmart
TM compatible in-
fant or child restraint system, which is prop-
erly secured with the vehicle’s seat belt,
fully in accordance with the child seat
manufacturer’s instructions.
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and
the child is not properly secured in the child
restraint.
1BabySmart
TM is a trademark of Siemens
Automotive Corp.
!When moving the seats, make sure
there are no items in the footwell or
behind the seats. Otherwise you could
damage the seats.
Page 40 of 464

40 Getting startedAdjustingSeat cushion tilt
Press the horizontal switch up or down
in direction of arrow4 until your up-
per legs are lightly supported.
Head restraint height
Head restraint
Adjust the height of head restraints
manually by pulling them upwards or
pushing them downwards.
Steering wheel
Warning!
G
For your protection, drive only with properly
positioned head restraints.
Adjust head restraint so that the head re-
straint supports the back of the head at eye
level. This will reduce the potential for injury
to the head and neck in the event of an ac-
cident or similar situation.
Do not drive the vehicle without the seat
head restraints. Head restraints are intend-
ed to help reduce injuries during an acci-
dent.
iAdjust the head restraint in such a way
that it is as close to the head as
possible.
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing, or driving without the steering wheel
adjustment feature locked could cause the
driver to lose control of the vehicle.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle.
Even with the SmartKey removed from the
starter switch, the electrical steering wheel
adjustment feature* can be operated when
the driver’s door is open. Therefore, 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.
Page 41 of 464

41 Getting started
Adjusting
Steering wheel adjustment, manual
1Adjustment handle
To unlock the steering column, pull
handle1 out to its stop limit.
Move the steering wheel to the desired
position.
Push handle1 back to its original po-
sition to relock the steering column.
When you hear an audible click, the
steering column is again fixed into
place.
Make sure the steering column is se-
curely locked by trying to move the
steering wheel up and down, in and out
before driving off.Steering wheel adjustment, electrical*
The lever for the electrical steering wheel
adjustment is located on the steering col-
umn (lower left).
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on the ignition (
page 35).
or
Open the driver’s door.
!Do not drive the vehicle until you have
properly locked the steering column.Warning!
G
Only adjust the steering wheel with the vehi-
cle at a standstill and make sure the steer-
ing column is securely locked in place
before driving off.
Driving without the steering column locked
may cause an unexpected steering wheel
movement which could cause the driver to
lose control of the vehicle. Make sure the
steering column is securely locked by trying
to move it up and down, and in and out be-
fore driving off.
Page 42 of 464

42 Getting startedAdjustingAdjusting steering column in or out
Move the lever in direction of
arrows1 until a comfortable steering
wheel position is reached with your
arms slightly bent at the elbow.
Adjusting steering column up or down
Move the lever in direction of
arrows2.
Make sure your legs can move freely
and all the displays (including malfunc-
tion and indicator lamps) on the instru-
ment cluster are clearly visible.
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have a
good view of the road and traffic condi-
tions.
Interior rear view mirror
Adjust the interior rear view mirror
manually.
For more information, see “Rear view mir-
rors” (
page 167).
iThe memory function* (
page 103)
lets you store the settings for the steer-
ing wheel together with the settings for
the exterior rear view mirrors and the
driver’s seat position.
Warning!
G
In the case of an accident, liquid electrolyte
may escape the mirror housing if the mirror
glass breaks.
Electrolyte has an irritating effect. Do not al-
low the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.
!Electrolyte drops coming into contact
with the vehicle paint finish can only be
completely removed while in their
liquid state and by applying plenty of
water.
Page 43 of 464

43 Getting started
Adjusting
Exterior rear view mirrorThe switches are located on the lower part
of the center console.
1Driver’s side exterior rear view mirror
2Adjustment switch
3Passenger-side exterior rear view
mirror
Switch on the ignition (
page 35).
Press switch1 or3 to select the
respective exterior rear view mirror.
Press adjustment switch2 forward,
rearward, left, or right according to the
desired setting.For more information, see “Storing exterior
rear view mirror parking position (parking
aid)” (
page 105).
Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
terior rear view mirror or glance over your
shoulder before changing lanes. !If an exterior rear view mirror housing
is forcibly pushed forward (hit from the
rear) or rearward (hit from the front),
reposition it by applying firm pressure
until it snaps into place. The exterior
rear view mirror housing is now proper-
ly positioned and you can adjust the
mirror normally.
iAt low ambient temperatures, the exte-
rior rear view mirrors will be heated au-
tomatically.iThe memory function (
page 103) lets
you store the settings for the exterior
rear view mirrors together with the set-
tings for the steering wheel and the
driver’s seat position.
!Before driving the vehicle through an
automatic car wash, fold the exterior
mirrors in. Otherwise they may get
damaged.
Page 44 of 464

44 Getting startedDriving
Fastening the seat belts
Warning!
G
Do not lay objects in the driver’s footwell. Be
careful that floor mats or carpets in the driv-
er’s footwell have sufficient clearance for
the pedals.
During sudden driving or braking maneuvers
the objects could get caught between the
pedals. You could then no longer brake or
accelerate.
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 wearing your
seat belt. The air bags can only provide the
protection they were designed to afford if
the occupants are using their seat belts
(page 62).