Page 32 of 474
30 At a glanceCenter consoleLower part
Item
Page
1
Parking assist (Parktronic 
system)* deactivation 
switch
223
2
Active Body Control (ABC) 
switch
220
3
Tow-away alarm switch
90
4
Hardtop open/close con-
trol with buttons for roll bar
196
73
5
Exterior rear view mirror 
adjustment
43
Item
Page
6
Vehicle level control switch
221
7
ESP control switch
83
8
Thumbwheel for setting 
distance for Distronic*
216
9
Distance warning func-
tion* on/off switch
216
a
Program mode selector 
switch for automatic trans-
mission
175
b
Gear selector lever for 
automatic transmission
170 
     
        
        Page 36 of 474

34 Getting startedThe “Getting started” section provides an 
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners 
should pay special attention to the infor-
mation given here. 
If you are already familiar with the basic 
functions described here, the “Controls in 
detail” section will provide you with further 
information. The corresponding page refer-
ences are located at the end of each seg-
ment.Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŠUnlock button for trunk lid
3ŒUnlock button
4ÂPanic button
Press unlock button  Œ on the 
SmartKey.
All turn signal lamps flash once. The 
locking knobs in the doors move up. 
The anti-theft alarm system is dis-
armed.
The SBC brake system is activated.
Enter the vehicle and insert the 
SmartKey in the starter switch.
For more information, see “SmartKey” 
(
page 94).Warning!
G
When leaving the vehicle, always remove the 
SmartKey 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. Unsuper-
vised use of vehicle equipment may cause 
an accident and/or serious personal injury.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. 
     
        
        Page 37 of 474

35 Getting started
Unlocking
Unlocking with KEYLESS-GO*
If your vehicle is equipped with the 
KEYLESS-GO function, your vehicle checks 
whether the SmartKey with KEYLESS-GO is 
valid when you grasp the door handle. If 
your SmartKey with KEYLESS-GO is valid, 
the doors will unlock and you can open 
them.
The function of the SmartKey overrules the 
KEYLESS-GO function.
Grasp the door handle.
The turn signal lamps flash once. The 
locking knobs on the doors move up. 
The anti-theft alarm system is dis-
armed.
The SBC brake system is activated.If the SmartKey with KEYLESS-GO is inside 
the vehicle, pressing the KEYLESS-GO 
start/stop button on the gear selector le-
ver corresponds to turning the SmartKey 
to the various starter switch positions 
(
page 37).
For more information, see “SmartKey with 
KEYLESS-GO*” (
page 98).
Warning!
G
When leaving the vehicle, always take the 
SmartKey with KEYLESS-GO* with you, and 
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an 
unlocked vehicle. Unsupervised use of vehi-
cle equipment may cause an accident 
and/or serious personal injury.
iTo unlock the vehicle, the SmartKey 
with KEYLESS-GO must be outside the 
vehicle, no further than approx. 3 feet 
(1 meter) away from the door. iIf the vehicle has been parked for more 
than 72 hours, you must pull the out-
side door handle in order to activate 
the KEYLESS-GO function.
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. 
     
        
        Page 38 of 474

36 Getting startedUnlockingStarter switch positions SmartKey
Starter switch0For removing SmartKey
1Power supply to some electrical con-
sumers, such as seat adjustment
2Ignition (power supply for all electrical 
consumers) and driving position
All lamps (except high beam headlamp 
indicator lamp and turn signal indicator 
lamps unless activated) in the instru-
ment cluster come on. If a lamp in the 
instrument cluster fails to come on 
when the ignition is switched on, have 
it checked and replaced if necessary.If a lamp in the instrument cluster re-
mains on after starting the engine or 
comes on while driving, refer to “Lamps 
in the instrument cluster” 
(
page 324).
3Starting position
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.
iWhen you switch on the ignition, the in-
dicator 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 
systems are 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.iThe SmartKey can only be removed 
from the starter switch with the gear 
selector lever in position P. 
     
        
        Page 40 of 474

38 Getting startedUnlockingIgnition (or Position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power to all electrical 
consumers. All lamps (except high 
beam headlamp indicator lamp and 
turn signal indicator lamps unless acti-
vated) in the instrument cluster come 
on.
For more information, see “SmartKey with 
KEYLESS-GO*” (
page 98).
For information on starting the engine us-
ing the KEYLESS-GO start/stop button, 
see “Starting with KEYLESS-GO*” 
(
page 49).
iIf you now press the KEYLESS-GO 
start/stop button once, the power sup-
ply is again switched off.
iWhen you switch on the ignition, the in-
dicator 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 
systems are 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. 
     
        
        Page 41 of 474

39 Getting started
Adjusting
Adjusting
Seats
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 
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. That could cause serious or 
fatal injuries. The seat backrest 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 45).
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 or the SmartKey with 
KEYLESS-GO* from the starter switch, take 
it with you, and lock the vehicle.
Even with the SmartKey or the SmartKey 
with KEYLESS-GO* removed from the start-
er switch or the SmartKey with 
KEYLESS-GO* removed from the vehicle, 
the power seats can be operated when the 
respective 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 42 of 474

40 Getting startedAdjusting
Seat adjustment
The seat adjustment switch is located in 
the door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat cushion depth
5Seat fore and aft adjustment
6Backrest tilt
Switch on the ignition (
page 36).
or
Open the respective door.Seat fore and aft adjustment 
Press the switch forward or backward 
in direction of arrow 5.
Adjust seat to 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.
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 airbag when it in-
flates in a crash. If this happens, serious or 
fatal injury will result.
Infants and small children must be seated in 
an appropriate infant or child restraint sys-
tem, which is properly secured with the ve-
hicle’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 be-
hind the seats. Otherwise you could 
damage the seats. 
The memory function (
page 120) lets 
you store the setting for the seat posi-
tion together with the settings for the 
steering wheel and the exterior rear 
view mirrors. 
     
        
        Page 43 of 474

41 Getting started
Adjusting
Seat height
Press the switch up or down in direc-
tion of arrow2.
Seat cushion tilt
Press the switch up or down in 
direction of arrow3 until your upper 
legs are lightly supported.
Seat cushion depth
Press the switch forward or backward 
in direction of arrow4 until your legs 
are supported comfortably.
Seat backrest tilt
Press the switch forward or backward 
in direction of arrow6 until your arms 
are slightly angled when holding the 
steering wheel.Head restraint height
Press the switch up or down in direc-
tion of arrow1.Head restraint tilt
Manually adjust the angle of the head re-
straint. 
Push or pull on the lower edge of the 
head restraint cushion.
For more information on seats, see “Seats” 
(
page 113).
Warning!
G
For your protection, drive only with properly 
positioned head restraints.
Adjust head restraint so that the center of 
the head restraint supports the back of the 
head at eye level. This will reduce the poten-
tial 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 intend-
ed to help reduce injuries during an acci-
dent.