Page 123 of 521

122 Controls in detail
Seats
Placing rear head restraints upright
Pull the rear head restraint forward un-
til it locks into position.
Head restraint tilt
Two different head restraint angle
positions are available.
Press the release button (page 121)
and tilt the head restraint to the
desired position.
Removing and installing rear seats
head restraints
1Release button
Removing rear seat head restraints
Fold back head restraint (page 121).
Pull head restraint to its highest
position.
Push release button1 and pull out
head restraint.
Installing rear head restraints
Insert head restraint and push it down
until it engages.
Push release button1 and adjust
head restraint to desired position.
Warning!G
Make sure the head restraints engage when
placing them upright. Otherwise their pro-
tective function cannot be assured.
iAdjust the head restraint in such a way that
it is as close to the head as possible.
Warning!G
For your protection, drive only with properly
positioned head restraints.
Adjust the head restraint so that it is as
close to the head as possible and the center
of the head restraint supports the back of
the head at eye level. This will reduce the po-
tential 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
accident.
Do not interchange head restraints from
front and rear seat.
Page 124 of 521

123 Controls in detail
Seats
Rear seat head restraints
(CLK cabriolet)
Raising rear head restraints
1Rear seat head restraint
Pull head restraint1 to its highest
position.
Lowering rear head restraints with
switch in the center console
1Rear head restraint lowering switch
Switch on the ignition (page 38).
Push the rear head restraints lowering
switch1.
The rear head restraints are lowered.
Warning!G
For safety reasons, always drive with the
rear head restraints in the raised position
when the rear seats are occupied.
Keep the area around head restraints clear
of articles (e.g. clothing) to not obstruct the
lowering/raising operation of the head
restraints.
iThe rear head restraints cannot be lowered
using the switch1 when the roll bars have been
released. The roll bars need to be lowered before
the rear head restraints can be operated again
using switch1.
If the roll bars have released and the soft top
is closed, contact an authorized
Mercedes-Benz Center to have the roll bars
lowered. Do not attempt to lower the roll
bars manually with the soft top closed. Low-
ering the roll bars manually with the soft top
closed may impair the function of the roll
bars.
If the roll bars have released and the soft top
is open, you can lower the roll bars manually
(
page 431) or contact an authorized
Mercedes-Benz Center to have the roll bars
lowered.
Page 128 of 521

127 Controls in detail
Memory function
Memory function
Prior 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 65) 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.With the memory function you can store up
to three different configuration.
Each stored position on the driver’s side
includes the following settings:
Seat position
Steering wheel position
Exterior rear view mirror position
Multicontour seat*: previously saved
settingEach stored position on the passenger side
includes the following setting:
Seat position
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.
Page 129 of 521

128 Controls in detail
Memory function
The memory button and memory position
switch are located on the door.
1Memory button
2Memory position switch
Switch on the ignition (page 40).
or
Open the respective door and insert
the SmartKey in the starter switch.
Storing positions into memory
Adjust the seats, steering wheel and
exterior rear view mirrors to the
desired position (
page 42).
Turn memory position switch2 to the
desired memory position.
Press memory button1.
Release memory button1 and press
memory position switch2 within
3 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 re-
clined 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.
Page 214 of 521

213 Controls in detail
Audio system
Audio system
Audio and telephone*, operation
These instructions are intended to help
you become familiar with your
Mercedes-Benz audio system. They con-
tain useful tips and a detailed description
of the user functions.Operating safetySound system*
Your vehicle is equipped with a sound sys-
tem. The subwoofer in the CLK cabriolet is
located between the rear seats.
Warning!G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a
standstill and operate the system only when
road and traffic conditions permit. Always
pay full attention to traffic conditions first
before operating system controls while
driving.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car is
covering a distance of 44 feet
(approximately 14 m) every second.
Warning!G
Any alterations made to electronic
components can cause malfunctions.
The radio, amplifier, CD changer*, satellite
radio*, and telephone* are interconnected.
When one of the components is not opera-
tional or has not been removed/replaced
properly, the function of other components
may be impaired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
at an authorized Mercedes-Benz Center.
!Make sure no objects fall into the openings
of the subwoofer between the rear seats.
If necessary, contact an authorized
Mercedes-Benz Center to remove any objects
which may have fallen into the openings.
Page 257 of 521

256 Controls in detail
Power tilt/sliding sunroof* (Coupe)
Opening and closing the power
tilt/sliding sunroof
The tilt/sliding sunroof can be opened and
closed electrically. The switch for the
tilt/sliding sunroof is on the overhead
control panel.
Sunroof switch
1Push up to raise sunroof at rear
2Pull down to lower sunroof at rear
3Push forward to slide sunroof closed
4Push back to slide sunroof openWith the sunroof closed or tilted open, a
screen can be slid into the roof opening to
guard against sun rays. When sliding the
sunroof open, the screen will also retract.
Screen
Warning!G
When closing the tilt/sliding sunroof, make
sure there is no danger of anyone being
harmed by the closing procedure.
The opening/closing procedure of the
tilt/sliding sunroof can be immediately
halted by releasing the switch or, if the
switch was moved past the resistance point
and released, by moving the switch in any
direction.
The tilt/sliding sunroof is made out of glass.
In the event of an accident, the glass may
shatter. This may result in an opening in the
roof.
In a vehicle rollover, occupants not wearing
their seat belts or not wearing them properly
may be thrown out of the opening. Such an
opening also presents a potential for injury
for occupants wearing their seat belts
properly as entire body parts or portions of
them may protrude from the passenger
compartment.
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 ac-
cess to a vehicle could result in an accident
and/or serious personal injury.
Page 265 of 521

264 Controls in detail
Soft top (Cabriolet)
Make sure all side windows and the
soft top are properly closed before leaving
the vehicle.Luggage cover
The luggage cover is located in the trunk.
1Luggage cover
Open the trunk
Latch luggage cover
Pull luggage cover1 out in direction
of arrow until it engages in place.Folding back luggage cover
Press luggage cover1 in direction of
rear seat.
Warning!G
If the soft top does not completely open or
close, a warning sounds and the soft top
switch flashes. In the multifunction display
you will see K, and the message
Open/Close Top Completely appears.
After about 15 seconds the roof hydraulics
lose pressure.
Properly lock the soft top (
page 262) be-
fore continuing to drive.
!To prevent damage to the soft top or lug-
gage/cargo when lowering the roof:
load trunk only to the height of the luggage
cover
do not permit luggage/cargo to push up the
closed luggage cover
do not place anything on the shelf behind the
roll bars
do not place anything on the soft top com-
partment cover
!Never place anything behind the side nets
when the luggage cover has been folded back.
You could forget about objects placed there,
which could result in damage when operating the
soft top.
Page 267 of 521

266 Controls in detail
Soft top (Cabriolet)
Fold retaining lugs6 out.
Slide pre-assembled wind screen into
mounting fixture on right side7 using
retaining pin on right side. Simulta-
neously, retaining lugs6 should slide
into seat belt passage in rear bench
seat.
Pull catch8 in position9 and guide
left retaining pin into mounting fixture
on left side.
Fold upper section of wind screen up
toward head restraints until it stops.Removing
Fold upper section of wind screen back
down.
Pull catch8 in position10 and pull
wind screen out toward front of vehi-
cle. Be careful not to damage interior
trim with guide tabs.
Fold retaining lugs6 back.
bCatch
Press catch b to the right and fold up-
per and lower sections back.
Place the wind screen back into the
bag.
6Retaining lugs
7Mounting fixture on right side
8Catch
9Locking
10Unlocking
Warning!G
Check for secure locking by pulling up on
the wind screen.
To prevent personal injury, remove wind
screen if rear seats are to be occupied by
passengers.