ContentsSafety and Security........................... 61
Occupant safety................................... 62
Air bags .......................................... 63
Seat belts ....................................... 69
Active head restraints .................... 73
Roll bars ......................................... 74
Children in the vehicle .................... 75
Blocking of rear side
window operation ........................... 85
Panic alarm .......................................... 86
Activating ....................................... 86
Deactivating ................................... 86
Driving safety systems ......................... 87
ABS ................................................ 87
BAS ................................................ 88
ESP
®.............................................. 89
Anti-theft systems................................ 92
Immobilizer..................................... 92
Anti-theft alarm system .................. 92
Tow-away alarm ............................. 94
Controls in detail............................... 95
Locking and unlocking ......................... 96
SmartKey ....................................... 96
SmartKey with KEYLESS-GO* ...... 100
Opening the doors
from the inside ............................. 107
Opening the trunk ........................ 108
Closing the trunk.......................... 110
Trunk emergency release ............. 115
Valet locking ................................ 116
Automatic central locking ............ 117
Locking and unlocking
from the inside ............................. 118
Seats ................................................. 119
Front seat active head restraints . 119
Rear seat head restraints ............. 119
Multicontour seat* ....................... 121
Seat heating* ............................... 122
Seat ventilation* .......................... 123
Memory function ............................... 124
Storing positions into memory ..... 125
Recalling positions from memory . 125
Storing exterior rear view
mirror parking position................. 126Lighting ............................................. 127
Exterior lamp switch .................... 127
Combination switch ..................... 131
Corner-illuminating front
fog lamps* (CLK with
Bi-Xenon* headlamps)................. 132
Hazard warning flasher ................ 133
Interior lighting ............................ 134
Door entry lamps ......................... 135
Trunk lamp ................................... 135
Instrument cluster ............................. 136
Instrument cluster illumination .... 136
Coolant temperature indicator ..... 137
Trip odometer .............................. 137
Tachometer.................................. 138
Outside temperature indicator ..... 138
Control system .................................. 139
Multifunction display.................... 140
Multifunction steering wheel........ 140
Menus .......................................... 142
Standard display menu ................ 144
AUDIO menu ................................ 145
NAV* menu .................................. 146
Vehicle status
message memory menu ............... 146
Settings menu.............................. 148
30 At a glanceDoor control panel
Item
Page
1
Door handle
107
2
Seat adjustment
38,
119
3
Memory function (for stor-
ing seat, exterior mirror and
steering wheel settings)
124
4
Switches for opening/clos-
ing front door windows
249
5
Rear window override
switch
85
6
Switches for opening/clos-
ing rear windows
249
7
Remote trunk opening
switch
109
Remote trunk
opening/closing* switch
109
38 Getting startedAdjustingSeat 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 34).
or
Open the respective 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 position should be as far to the rear
as possible, consistent with ability to
properly operate controls.Seat height
Press switch up or down in direction of
arrow2.
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.
Head restraint height
Press switch up or down in direction of
arrow1.
iThe memory function (
page 124) lets
you store the settings for the seat posi-
tion together with the settings for the
steering wheel and the exterior rear
view mirrors.
!When moving the seat, make sure
there are no items in the footwell or be-
hind the seats. Otherwise you could
damage the seats.
iAdjust the head restraint in such a way
that it is as close to the head as
possible.
41 Getting started
Adjusting
Steering wheel Steering wheel adjustment
The stalk for steering wheel adjustment is
located on the lower left of steering
column.
1Adjusting steering column, in or out
2Adjusting steering column, up or down
Switch on the ignition (
page 34).
or
Open the driver’s door.Adjusting steering column in or out
Move stalk forward or back in direction
of arrow 1 until a comfortable steer-
ing wheel position is reached with your
arms slightly bent at the elbow.
Adjusting steering column up or down
Move stalk up or down in direction of
arrow 2.
Make sure your legs can move freely
and all the displays (including malfunc-
tion and indicator lamps) on the
instrument cluster are clearly visible.
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 or SmartKey with KEYLESS-GO*
from the starter switch, take it with you, and
lock the vehicle.
Even with the SmartKey or SmartKey with
KEYLESS-GO* removed from the starter
switch, or the SmartKey with KEYLESS-GO*
removed from the vehicle, the steering
wheel adjustment feature can be operated
when the driver’s door is open. Therefore,
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.
iThe memory function (
page 124) lets
you store settings for the steering
wheel together with the settings for the
exterior rear view mirrors and the seat
position.
44 Getting startedAdjustingThe buttons are located above the exterior
lamp switch.
1Adjustment button
2Passenger-side exterior rear view
mirror button
3Driver’s side exterior rear view mirror
button
Switch on the ignition (
page 34).
Press button3 for the driver’s side
exterior rear view mirror or button2
for the passenger-side exterior rear
view mirror.
Push adjustment button1 up, down,
left, or right, according to the desired
setting.
For more information, see “Rear view mir-
rors” (
page 181).
!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 124) 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
exterior rear view mirrors will be
heated automatically.
95 Controls in detail
Locking and unlocking
Seats
Memory function
Lighting
Instrument cluster
Control system
Automatic transmission
Good visibility
Climate control (CLK 350)
Automatic climate control (CLK 500/CLK 55 AMG)
Audio system
Power windows
Soft top
Driving systems
Loading
Useful features
124 Controls in detailMemory functionPrior to operating the vehicle, the driver
should check and adjust the seat height,
seat position fore and aft, and seat back-
rest angle if necessary, to ensure adequate
control, reach and comfort. The head
restraint should also be adjusted for
proper height. See also the section on
air bags (
page 63) for proper seat
positioning.
In addition, adjust the steering wheel to
ensure adequate control, reach, operation
and comfort. Both the interior and exterior
rear view mirrors should be adjusted for
adequate rear vision.
Fasten seat belts. Infants and small chil-
dren should be seated in a properly se-
cured restraint system that complies with
U.S. Federal Motor Vehicle Safety
Standards 213 and 225 and
Canadian Motor Vehicle Safety Standards
213 and 210.2.The following settings are stored when
using the buttons on the driver’s door:
Driver’s seat, backrest and head
restraint position
Steering wheel position
Exterior rear view mirror position
The following settings are stored when
using the buttons on the passenger door:
Front passenger seat, backrest and
head restraint positionThe memory button and memory position
switch are located on the door.
1Memory button
2Memory position switch
Switch on the ignition (
page 34).
or
Open the respective door and insert
the SmartKey in the starter switch.
Warning!
G
Do not activate the memory function while
driving. Activating the memory function
while driving could cause the driver to lose
control of the vehicle.
125 Controls in detail
Memory function
Storing positions into memory
Adjust the seats, steering wheel and
exterior rear view mirrors to the
desired position (
page 37).
Turn memory position switch2 to the
desired memory position.
Press memory button1.
Release memory button1 and press
memory position switch2 within
three seconds.
All settings are stored to the selected
position.
Recalling positions from memory
Turn memory position switch2 to the
desired memory position.
Press and hold memory position
switch2 until the seat, steering wheel
and exterior rear view mirrors have
completely moved to the stored
positions.!Do not operate the seats using the
memory button if the seat backrest is
in an excessively reclined position.
Doing so could cause damage to front
or rear seats.
First move the seat backrest to an
upright position.
iReleasing the memory position switch
stops movement to the stored
positions immediately.