Page 28 of 400
28 At a glanceDoor control panel
Door control panel
Item
Page
1
Door handle
87
2
Memory function* (for 
storing seat, exterior 
mirror and steering wheel 
settings)
97
3
Seat adjustment
32, 90
4
Switches for 
opening/closing front door 
windows
196
5
Switch for rear door 
window override
72
6
Switches for 
opening/closing rear door 
windows
196 
     
        
        Page 31 of 400

31 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 in the 
starter switch, the battery may not be 
sufficiently charged.
Check the battery and charge it if 
necessary (
page 324)
Get a jump start (
page 327).
To prevent accelerated battery 
discharge and a possible dead battery, 
always remove the SmartKey from the 
starter switch when the engine is not in 
operation. 
     
        
        Page 32 of 400

32 Getting startedAdjusting
AdjustingSeats
The seats can be adjusted either manually 
or electrically, depending on the vehicle’s 
equipment.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.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 serious 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
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 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.
1BabySmart
TM is a trademark of Siemens 
Automotive Corp. 
     
        
        Page 33 of 400

33 Getting started
Adjusting
Manual seat adjustment
1Seat fore and aft adjustment
2Seat cushion tilt
3Seat backrest tilt
4Seat heightSeat fore and aft adjustment
Lift handle1.
Slide seat to the desired position.
Allow handle1 to reengage. 
Check for proper engagement before 
driving.
Adjust seat to a comfortable seating 
position that still allows you to reach the 
accelerator/brake pedal safely. The posi-
tion should be as far rearward as possible, 
consistent with ability to properly operate 
controls.Seat cushion tilt
Turn handwheel2 forward or back-
ward until your upper legs are lightly 
supported
Seat backrest tilt
Press switch3 in direction of arrow 
until your arms are slightly angled 
when holding the steering wheel.
Seat height
Press switch4 in direction of arrow 
until your legs are lightly supported.
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 seat. Otherwise you could 
damage the seat. 
     
        
        Page 35 of 400

35 Getting started
Adjusting
Power seat* adjustment
The seat adjustment switches are located 
in each front door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat fore and aft adjustment
5Seat backrest tilt
Turn the SmartKey in the starter switch 
to position1 or2 (
page 31).
or
Open the driver’s or front passenger 
door.Seat fore and aft adjustment
Press switch forward or backward in 
direction of arrow4.
Adjust seat to a comfortable seating 
position that still allows you to reach the 
accelerator/brake pedal safely. The posi-
tion should be as far rearward as possible, 
consistent with ability to properly operate 
controls.Seat cushion tilt
Press switch up or down in direction of 
arrow3 until your upper legs are 
lightly supported.
Seat backrest tilt
Press switch forward or backward in 
direction of arrow5 until your arms 
are slightly angled when holding the 
steering wheel.
Seat height
Press switch up or down in direction of 
arrow2.
Head restraint height
Press switch up or down in direction of 
arrow1.
iWhen moving the seat, be sure that 
there are no items in the footwell or 
behind the seat. Otherwise you could 
damage the seat.
The memory function* (
page 97) lets 
you store the setting for the seat posi-
tion together with the settings for the 
steering wheel and exterior rear view 
mirrors. 
     
        
        Page 36 of 400

36 Getting startedAdjusting
Head restraint tilt
Manually adjust the angle of the head 
restraint.
Push or pull on the lower edge of the 
head restraint cushion.
For more information, see “Seats” 
(
page 90).
Steering wheel
Warning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraint so that the head 
restraint 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 accident or similar situation.
Do not drive the vehicle without the seat 
head restraints. Head restraints are 
intended to help reduce injuries during an 
accident.
Warning!
G
Do not adjust the steering wheel while 
driving. Adjusting the steering wheel while 
driving, 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 electrical 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 equipment may cause an accident 
and/or serious personal injury. 
     
        
        Page 39 of 400

39 Getting started
Adjusting
The buttons are located above the exterior 
lamp switch.
1Driver’s side exterior rear view mirror 
button
2Adjustment button
3Passenger-side exterior rear view 
mirror button
Make sure the ignition is switched on.
All lamps in the instrument cluster 
come on.
Press button1 for the left mirror or 
button3 for the right mirror.
Push adjustment button2 up, down, 
left, or right according to the desired 
setting.
For more information, see “Activating exte-
rior rear view mirror parking position” 
(
page 147).
!If an exterior rear view mirror was 
forcibly 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 positioned and you can adjust 
the mirror normally.
iThe memory function* (
page 97) lets 
you store the setting for the exterior 
rear view mirrors together with the set-
tings for the steering wheel and seat 
position.
iAt low ambient temperatures, the 
mirrors will be heated automatically. 
     
        
        Page 42 of 400

42 Getting startedDriving
If necessary, tighten the lap portion to 
a snug fit by pulling shoulder portion 
up.
Seat belt height adjustment
Adjust seat belt so that shoulder portion is 
located as close as possible to the middle 
of your shoulder (it should not touch the 
neck).
Front seats
4Button for belt outlet height adjust-
ment
Press button4 and slide belt outlet 
upward or downward.Rear outer seats
5Button for belt outlet height adjust-
ment
Press button5 and slide belt outlet 
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). For this purpose, you can adjust 
the height of the belt outlet.
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 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.