Page 24 of 514
23 At a glance
Cockpit
Item
Page
1
Steering wheel gearshift
buttons
CLK 500
CLK 55 AMG
175
176
2
Combination switch
Turn signals
Windshield wipers
High beam
53
53
52
3
Cruise control lever
265
4
Multifunction steering
wheel
26,
140
5
Instrument cluster
24,
136
6
Lever for voice control
system*, see separate
operating instructions
7
Starter switch
34
8
Front Parktronic* warning
indicator (Canada only)
269
Item
Page
9
Overhead control panel
29
a
Glove box
278
b
Cup holder
283
c
Center console
27, 28
d
Hood lock release
321
e
Horn
f
Steering wheel adjustment
stalk
41
g
Parking brake pedal
50
h
Door control panel
30
j
Parking brake release
50
k
Exterior lamp switch
52,
127
l
Exterior rear view mirror ad-
justment
43
m
Headlamp washer switch*
181
Page 27 of 514
26 At a glanceMultifunction steering wheel
Item
Page
1
Multifunction display
140
Operating control system
140
2
Selecting the submenu or
setting the volume:
Press buttonæup / to increaseçdown / to decrease
3
Telephone*:
Press buttonsto take a call
to dial a call
164
164
tto end a call
to reject an incoming
call
164
Item
Page
4
Menu systems:
Press buttonèfor next menuÿfor previous menu
5
Moving within a menu:
Press buttonjfor next displaykfor previous display
Page 31 of 514
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
Page 38 of 514

37 Getting started
Adjusting
Adjusting
SeatsWarning!
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 in an excessively reclined position as
this can be dangerous. You could slide un-
der 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 back 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
adjusted.
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.
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 power seats
can be operated when the respective door is
open. Therefore, 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.
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 75).
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.
Page 39 of 514

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.
Page 42 of 514

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.
Page 43 of 514

42 Getting startedAdjustingEasy-entry/exit feature
This feature allows for easier entry into and
exit from the vehicle. When entering and
exiting the vehicle, the steering wheel is in
its uppermost position.
The easy-entry/exit feature can be
activated or deactivated in the Convenience
submenu of the control
system (
page 160).With the easy-entry/exit feature activated,
the steering wheel will return to its last set
position when you:
close the driver’s door with the ignition
switched on,
or
insert the SmartKey into the starter
switch or press the KEYLESS-GO*
start/stop button (
page 35) once
with the driver’s door closed.With the easy-entry/exit feature activated,
the steering wheel tilts upwards when you:
remove the SmartKey from the starter
switch,
or
open the driver’s door with the
SmartKey in starter switch position0
or1 or the KEYLESS-GO* start/stop
button (
page 35) in position1.
Warning!
G
You must make sure that no one can be-
come trapped or injured by the moving
steering wheel when the easy-entry / exit
feature is activated.
To stop steering wheel movement, do one of
the following:
Move the steering column stalk
(page 41).
Press the memory position switch
(page 124).
Do not leave children unattended in the ve-
hicle, or with access to an unlocked vehicle.
Children could open the driver's door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
iThe last set steering wheel position is
stored when
the ignition is switched off.
the position is stored in memory
(page 125).
Page 44 of 514

43 Getting started
Adjusting
Mirrors
Adjust the interior and exterior rear view
mirrors before driving so that you have a
good view of the road and traffic condi-
tions.Interior rear view mirror
Manually adjust the interior rear view
mirror.
For more information, see “Rear view mir-
rors” (
page 181).
Exterior rear view mirrors
iIf the current position for the steering
wheel is in the uppermost tilt position,
the steering wheel will no longer be
able to move upward when the
easy-entry/exit feature is activated.
Repositioning of the steering wheel:
will be halted briefly when you start
the vehicle.
will stop if you start the vehicle and
set off immediately.
Warning!
G
Let the system complete the adjustment
procedure before setting the vehicle in
motion. All steering wheel adjustment must
be completed before setting the vehicle in
motion. Driving off with the steering wheel
still adjusting could cause the driver to lose
control of the vehicle.
Warning!
G
In case of an accident, liquid electrolyte may
escape the mirror housing if the mirror glass
breaks.
Electrolyte has an irritating effect. Do not al-
low the liquid to come into contact with
eyes, skin, clothing, or respiratory system.
In case it does, immediately flush affected
area with water, and seek medical help if
necessary.!Electrolyte drops coming into contact
with the vehicle paint finish can only be
completely removed while in their
liquid state and by applying plenty of
water.
Warning!
G
Exercise care when using the passen-
ger-side exterior rear view mirror. The mirror
surface is convex (outwardly curved surface
for a wider field of view). Objects in mirror
are closer than they appear. Check your in-
terior rear view mirror or glance over your
shoulder before changing lanes.