Page 34 of 521
33 At a glance
Overhead control panel
Overhead control panel
CLK coupe
ItemPage
1Rear interior lighting on/off
(CLK coupe)137
2Power tilt/sliding sunroof*
(CLK coupe)256
3Right reading lamp on/off137
4Interior lighting control136
5Interior rear view mirror47,
185
6Garage door opener*301
7Hands-free microphone for
Tele Aid (emergency call
system) and telephone*292
8Left reading lamp on/off137
9Tele Aid (emergency call
system) button295
Page 35 of 521
34 At a glance
Door control panel
ItemPage
1Inside door handle109
2Seat adjustment42,
120
3Memory function (for stor-
ing seat, exterior mirror and
steering wheel settings)127
4Switches for opening/clos-
ing front door windows250
5Rear window override
switch88
6Switches for opening/clos-
ing rear windows250
7Remote trunk opening
switch111
Remote trunk
opening/closing* switch111
Page 37 of 521
36 Getting started
The “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
references are located at the end of each
segment.
Unlocking
Unlocking with the SmartKey
SmartKey with remote control
1‹Lock button
2ŠOpening button for trunk
3ŒUnlock button
4ÂPanic button (
page 89)
Press unlock button Œ on the
SmartKey.
All turn signal lamps flash once.
An acoustic signal sounds once.
For more information, see “Factory
setting” (
page 106).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Enter the vehicle and insert the
SmartKey in the starter switch.
Page 38 of 521

37 Getting started
Unlocking
For more information, see “SmartKey”
(
page 100).
Unlocking with KEYLESS-GO*
With the KEYLESS-GO function, you can
lock and unlock the vehicle without using
the remote control buttons on the
SmartKey and start the engine without in-
serting the SmartKey in the starter switch.Pull an outside door handle.
All turn signal lamps flash once.
An acoustic signal sounds once.
For more information, see “Factory
setting” (
page 106).
The locking knobs in the doors
move up.
The anti-theft alarm system is dis-
armed.
Enter the vehicle.
For more information, see “SmartKey with
KEYLESS-GO*” (
page 103).
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. A child’s
unsupervised access to a vehicle could
result in 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.
iTo unlock the vehicle, the SmartKey with
KEYLESS-GO must be outside the vehicle, no fur-
ther than approximately 3 feet (1 meter) away
from the door to be opened.
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. A child’s unsupervised
access to a vehicle could result in an acci-
dent 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 39 of 521

38 Getting started
Unlocking
Starter switch positions
SmartKey
Starter switch
0For removing SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1Power supply for some electrical
consumers, such as seat adjustment
2Ignition (power supply for all electrical
consumers) and driving position
All lamps (except low beam headlamp
indicator lamp, high beam headlamp in-
dicator 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 instrument cluster” (
page 378).
3Starting position
Warning!G
When leaving the vehicle, always remove the
SmartKey or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle. Do not leave children unat-
tended in the vehicle, or with access to an
unlocked vehicle. A child’s unsupervised
access to a vehicle could result in an
accident and/or serious personal injury.
iWhen you switch on the ignition, the
indicator and warning lamps (except low beam
headlamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) in the instrument cluster come
on. The indicator and warning lamps (except low
beam headlamp indicator lamp, high beam head-
lamp indicator lamp, and turn signal indicator
lamps if activated) will go out when the engine is
running. This indicates that the respective sys-
tems are operational.
iThe SmartKey can only be removed from the
starter switch with the gear selector lever in
positionP.
iIf the SmartKey is left in starter switch
position0 for an extended period of time, it can
no longer be turned in the switch. In this case,
the steering is locked. To unlock, remove
SmartKey from starter switch and reinsert.
Page 40 of 521

39 Getting started
Unlocking
For more information, see “SmartKey”
(
page 100).
For information on starting the engine us-
ing the SmartKey, see “Starting with the
SmartKey” (
page 52).SmartKey with KEYLESS-GO*
Pressing the KEYLESS-GO start/stop but-
ton on the gear selector lever corresponds
to turning the SmartKey to the various
starter positions.
If you firmly depress the brake pedal dur-
ing pressing the KEYLESS-GO start/stop
button, the engine starts automatically.
You can also use the SmartKey with
KEYLESS-GO like a normal SmartKey.
KEYLESS-GO start/stop button
1USA only
2Canada only
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.
!If the SmartKey cannot be turned in the
starter switch, the battery may not be sufficient-
ly charged.
Check the battery and charge it if necessary
(
page 464).
Get a jump start (page 467).
To prevent accelerated battery discharge or a
completely discharged battery, always remove
the SmartKey from the starter switch when the
engine is not in operation.
iThe function of the SmartKey overrules the
KEYLESS-GO function.
Page 41 of 521

40 Getting started
Unlocking
Position 0
Before you press the KEYLESS-GO
start/stop button, the vehicle’s on-board
electronics have status0 (as with
SmartKey removed).
Position 1
Press the KEYLESS-GO start/stop
button once.
This supplies power for some electrical
consumers, such as seat adjustment.Ignition (or position 2)
Press the KEYLESS-GO start/stop but-
ton twice.
This supplies power for all electrical
consumers. All the lamps (except low
beam headlamp indicator lamp, high
beam headlamp indicator lamp, and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. If a lamp in the instrument cluster
fails to come on when the ignition is
switched on, have it checked and re-
placed if necessary. If a lamp in the in-
strument cluster remains on after
starting the engine or comes on while
driving, refer to “Lamps in instrument
cluster” (
page 378).For more information, see “SmartKey with
KEYLESS-GO*” (
page 103).
For information on starting the engine
using the KEYLESS-GO start/stop button,
see “Starting with KEYLESS-GO*”
(
page 52).
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 supply is
again switched off.
iWhen you switch on the ignition, the indica-
tor and warning lamps (except low beam head-
lamp indicator lamp, high beam headlamp
indicator lamp, and turn signal indicator lamps
unless activated) in the instrument cluster come
on. The indicator and warning lamps (except low
beam headlamp indicator lamp, high beam head-
lamp indicator lamp, and turn signal indicator
lamps if activated) will go out when the engine is
running. This indicates that the respective sys-
tems are operational.
Page 43 of 521

42 Getting started
Adjusting
Seat adjustment
The seat adjustment switches are located
on the respective door.
1Head restraint height
2Seat height
3Seat cushion tilt
4Seat fore and aft adjustment
5Backrest tilt
Switch on the ignition (page 38).
or
Open the respective door.Seat fore and aft adjustment
Press switch forward or backward in
the direction of arrow4.
Seat height
Press switch up or down in the direc-
tion of arrow2.
Seat cushion tilt
Press switch up or down in the direc-
tion of arrow3 until your upper legs
are lightly supported.
Warning!G
According to accident statistics, children
are safer when properly restrained in the
rear seating positions than in the front seat-
ing position. Thus, we strongly recommend
that children be placed in the rear seats
whenever possible. Regardless of seating
position, children 12 years old and under
must be seated and properly secured in an
appropriate infant, or toddler restraint, or
booster seat recommended for the size and
weight of the child. For additional
information, see “Children in the vehicle”
(
page 83).
A child’s risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle
and/or the child is not properly secured in
the child restraint.
iThe memory function (page 127) lets you
store the settings for the seat position together
with the settings for the steering wheel and the
exterior rear view mirrors.
!When moving the seats, make sure there are
no items in the footwell or behind the seats; oth-
erwise you could damage the seats.