Page 28 of 442
28 At a glanceDoor control panel
Door control panel
Item
Page
1
Door handle
97
2
Seat adjustment
35
3
Memory function (for stor-
ing seat, exterior mirror
and steering wheel set-
tings)
116
4
Exterior rear view mirror
adjustment
38
5
Switches for opening/
closing front and rear side
windows, rear window
override switch
197
6
Remote trunk lid release
switch, Trunk lid open-
ing/closing system*
99
Page 31 of 442
31 Getting started
Unlocking
Starter switch positionsStarter switch0For removing SmartKey
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
3Starting position
Warning!
G
When leaving the vehicle, always take the
SmartKey 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.iThe SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!If the SmartKey cannot be turned, the
battery may not be sufficiently
charged.
Check the battery and charge it
if necessary (
page 287).
Get a jump start (
page 378).
To prevent accelerated battery dis-
charge or a completely discharged bat-
tery, always remove the SmartKey from
the starter switch when the engine is
not in operation.
Page 33 of 442

33 Getting started
Unlocking
1KEYLESS-GO start/stop button
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status 0 (as with Smart-
Key removed).The SmartKey with KEYLESS-GO must be
located in the vehicle.
Make sure the gear selector lever is set
toP.
Do not depress the brake pedal.
Position 1
Press the KEYLESS-GO start/stop but-
ton once.
This supplies power to some electrical
consumers, such as seat adjustment.Ignition (or position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power to all electrical
consumers. All the lights in the instru-
ment cluster come on.
More information can be found in the
“Controls in detail” section (
page 91).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO”
(
page 44).
iIf you now press the KEYLESS-GO
start/stop button
once again, the ignition (position2)
is switched on.
twice, the power supply is again
switched off.
iIf you now press the KEYLESS-GO
start/stop button once, the power sup-
ply is again switched off.
Page 34 of 442

34 Getting startedAdjusting
AdjustingSeatsWarning!
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.Warning!
G
Do not adjust the driver’s 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 reclined. Sitting in an excessively re-
clined position 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 abdomen or neck. That could cause se-
rious or fatal injuries. The seat back and seat
belts provide the best restraint when the
wearer is in an 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 40).
Never place hands under the seat or near
any moving parts while a seat is being ad-
justed.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you, and
lock your vehicle.
The power seats can also be operated with
the driver’s or passenger door open. 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.
Warning!
G
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 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 airbag when it in-
flates in a crash. If this happens, serious or
fatal injury will result.
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing positions. Infants and small children
must ride in back seats and be seated in an
appropriate infant or child restraint system,
which is properly secured with the vehicle's
seat belt and top tether strap, or secured via
lower anchors and top tether strap, fully in
accordance with the child seat manufactur-
er’s instructions.
Page 35 of 442

35 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
on the front doors.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat fore and aft adjustment
5Backrest tilt
Turn the SmartKey in the starter switch
to position1 or2 (
page 31)
or
Press the KEYLESS GO* start/stop
button once or twice (
page 33).
or
Open the driver’s or passenger door.Seat fore and aft adjustment
Press the switch forward or backward
in the direction of arrow4.
Adjust a comfortable seating position
that still allows you to reach the
accelerator / brake pedal safely. The
position should be as far to the rear as
possible, consistent with ability to
properly operate controls.
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.
iWhen moving the seat, be sure there
are no items in the footwell or behind
the seats. Otherwise you could damage
the seats.
The memory function (
page 116) lets
you store the setting for the seat posi-
tion together with the setting for the
steering wheel and the exterior rear
view mirrors.
Page 37 of 442

37 Getting started
Adjusting
Steering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is
located on the steering column (lower left).
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Turn the SmartKey in the starter switch
to position1 or2.
or
Press the KEYLESS GO* start/stop
button once or twice.
or
Open the driver’s door.Adjusting steering column in or out
Move stalk forward or back in the direc-
tion of arrow1 until a comfortable
steering wheel position is reached with
your arms slightly bent at the elbow.
Adjusting steering column up or down
Move stalk up or down in the direction
of arrow2.
Make sure your legs can move freely
and that all the displays (incl. malfunc-
tion and indicator lamps) on the instru-
ment cluster are clearly visible.
For more information, see “Heated steer-
ing wheel*”(
page 248).
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing could cause the driver to lose control of
the vehicle.
When leaving the vehicle, always remove the
SmartKey from the starter switch, take the
SmartKey with KEYLESS-GO* with you and
lock your vehicle.
The steering wheel adjustment feature can
also be operated with the driver’s door
open. 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.
iThe memory function (
page 116) lets
you store the setting for the seat posi-
tion together with the setting for the
steering wheel and the exterior rear
view mirrors.
Page 39 of 442
39 Getting started
Adjusting
Make sure the ignition is switched on.
All the lamps in the instrument cluster
come on.
Press button3 for the left mirror or
button1 for the right mirror.
Push adjustment button2 up, down,
left or right according to the setting de-
sired.
For more information, see “Activating exte-
rior rear view mirror parking position”
(
page 169).!If an exterior rear view mirror was forc-
ibly pushed forward (hit from the rear)
or forcibly pushed rearward (hit from
the front), reposition it by applying firm
pressure until it snaps into place. The
mirror housing is now properly posi-
tioned and you can adjust the mirror
normally.iThe memory function (
page 116) lets
you store the setting for the seat posi-
tion together with the setting for the
steering wheel and the exterior rear
view mirrors.
At low ambient temperatures, the mir-
rors will be heated automatically.
Page 42 of 442

42 Getting startedDriving
Pull the seat belt smoothly from the
seat belt outlet.
Place the belt over your shoulder.
Push latch plate2 into buckle3 until
it clicks.
If necessary, tighten the lap portion to
a snug fit by pulling shoulder portion
up.
Belt outlet height adjustment
1Release button
Press release button1 and move the
seat belt height adjuster upward or
downward.Proper use of seat belts
Do not twist the belt when fastening.
Adjust seat belt so that the shoulder
portion is located as close as possible
to the middle of the shoulder (it should
not touch the neck or pass under the
arm).
Position the lap belt as low as possible
on your hips (over hip joint) and not
across the abdomen.
Place the seat backrest in a nearly up-
right position.
Never use a seat belt for more than one
person at a time.
Do not fasten a seat belt around a per-
son and another object at the same
time.
Check your seat belt during travel to
ensure that it is properly positioned.
Ensure that the seat belt is always fit-
ted snugly. You should avoid wearing
bulky clothing, such as winter coats,
when traveling in the vehicle.