Page 23 of 376
23 At a glance
Cockpit
Item
Page
1
Combination switch
Turn signals
46
Windshield wipers
47
High beam
46
2
Headlamp cleaning system
153
3
Cruise control lever
169
4
Instrument cluster
24
5
Lever for voice control sys-
tem*, see separate operat-
ing instructions
Item
Page
6
Starter switch
33
7
Glove box
183
8
Multifunction steering
wheel
26,
116,
203
9
Horn
a
Steering wheel adjustment
stalk
37,
203
b
Exterior lamp switch
46,
104
c
Exterior rear view mirror
adjustment
38
Page 26 of 376
26 At a glanceMultifunction steering wheel
Multifunction steering wheel
Item
Page
1
Multifunction display in
speedometer
115
Operating control sys-
tem:
116
2
Selecting the submenu or
setting the volumeçdown/ to decreaseæup / to increase
3
Telephone*: Press buttoníto take a callìto end a call
Item
Page
4
Menu systems: Press but-
tonèfor next systemÿfor previous system
5
Moving within a menu:
Press buttonjfor next displaykfor previous display
Page 30 of 376
30 At a glanceDoor control panel
Door control panel
Item
Page
1
Switches for opening/clos-
ing power window
164
Switch for rear door win-
dow override
71
2
Seat adjustment
34,
94
3
Door handle
89
4
Memory function (for stor-
ing seat, exterior mirrors
and steering wheel set-
tings)
101
Page 33 of 376

33 Getting started
Unlocking
Starter switch positionsStarter switch0For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch. If necessary, move steering
wheel slightly to allow the locking
mechanism to engage.
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 remove the
SmartKey from the starter switch and lock
the vehicle. Do not leave children unattend-
ed in the vehicle, or with access to an un-
locked vehicle. Unsupervised 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 311).
Get a jump start (
page 313).
To prevent accelerated battery dis-
charge and a possible dead battery, al-
ways remove the SmartKey from the
starter switch when the engine is not in
operation.
Page 34 of 376

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 up-
right position and belts are properly posi-
tioned 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, and lock
your vehicle.
The power seats can also be operated with
the driver’s or front passenger door open.
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Unsupervised 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 the back seats and be seated in
an appropriate infant or child restraint sys-
tem, which is properly secured with the ve-
hicle’s seat belt and top tether strap, or
secured via lower anchors and top tether
strap, fully in accordance with the child seat
manufacturer’s instructions.
Page 35 of 376

35 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
in each front door.
1Head restraint height
2Seat backrest tilt
3Seat fore and aft adjustment
4Seat cushion tilt
5Seat height
Turn the SmartKey in the starter switch
to position1 or2 (
page 33).
or
Open the driver’s or front passenger
door.
Seat fore and aft adjustment
Press the switch forward or back in the
direction of arrow3.
Adjust to a comfortable seating posi-
tion 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 that
there are no items in the footwell or
behind the seats
the cup holder next to the armrest
is removed (
page 185)
the cup holder in the front passen-
ger footwell is folded closed
(page 185)
Otherwise you could damage the seats
and/or cup holders.
The memory function (
page 101) 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 36 of 376

36 Getting startedAdjustingSeat cushion tilt
Press the switch up or down in the di-
rection of arrow4 until your upper
legs are lightly supported.
Seat backrest tilt
Press the switch forward or backward
in the direction of arrow2 until your
arms are slightly angled when holding
the steering wheel.
Seat height
Press the switch up or down in the di-
rection of arrow5.
Make sure you have sufficient head-
room.Head restraint height
Press the switch up or down in the di-
rection of arrow1.
Adjust head restraint to support the back
of the head approximately at eye level.Head restraint tilt
Manually adjust the angle of the head re-
straint.
Push or pull on the upper edge of the
head restraint cushion.
For more information, see “Seats”
(
page 94).
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.
Page 37 of 376

37 Getting started
Adjusting
Steering wheelThe stalk 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 (
page 33).
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 203).
Warning!
G
Do not adjust the steering wheel while driv-
ing. Adjusting the steering wheel while driv-
ing, or driving without the adjustment
locked could cause the driver to lose control
of the vehicle.
When leaving the vehicle, always remove the
SmartKey from the starter switch, 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 101) lets
you store the setting for the steering
wheel together with the setting for the
seat position and the exterior rear view
mirrors.