2008 MERCEDES-BENZ CLK550 key

174 Controls in detail
Automatic transmission
Gear selector lever positions
The current gear selector lever position
appears in the multifunction display.
1Current gear selector lever positionEffect
ìPark position
Gear selector lever position
when the vehicle is parked. Place
gear selector lever in park
positionP only when vehicle is
stopped. The park position is not
intended to serve as a brake
when the vehicle is parked.
Rather, the driver should always
set the parking brake in addition
to placing the gear selector lever
in park positionP to secure the
vehicle.
Effect
The SmartKey can only be
removed from the starter switch
with the gear selector lever in
park positionP. With the
SmartKey removed, the gear
selector lever is locked in park
positionP.
If the vehicle’s electrical system
is malfunctioning, the gear
selector lever could remain
locked in park positionP
(
page 429).
íReverse gear
Place gear selector lever in
positionR only when vehicle is
stopped.

175 Controls in detail
Automatic transmission
Effect
ëNeutral
No power is transmitted from the
engine to the drive axle. When
the brakes are released, the
vehicle can be moved freely
(pushed or towed).
To avoid damage to the trans-
mission, never engage neutral
positionN while driving.
If the ESP
® is deactivated or
malfunctioning:
Move gear selector lever to neu-
tral positionN only if the vehicle
is in danger of skidding, e.g. on
icy roads.
êDrive
The transmission shifts
automatically. All forward gears
are available.
!Coasting the vehicle, or driving for any other
reason with gear selector lever in neutral
positionN can result in transmission damage
that is not covered by the Mercedes-Benz
Limited Warranty.
Warning!G
Getting out of your vehicle without shifting
into park positionP is dangerous. Also, park
positionP alone is not intended to or capa-
ble of preventing your vehicle from moving,
possibly hitting people or objects.
Always set the parking brake (
page 59) in
addition to shifting to park positionP.
When parked on an incline, turn the front
wheels towards the road curb.
Do not park this vehicle in areas where com-
bustible materials such as grass, hay or
leaves can come into contact with the hot
exhaust system, as these materials could be
ignited and cause a vehicle fire.
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. Children could move the
gear selector lever from park positionP,
which could result in an accident and/or
serious personal injury.
Getting out of your vehicle without taking
the above measurements to secure it is
dangerous.

188 Controls in detail
Good visibility
Rear window sunshade*
(CLK coupe: Canada only)
The switch is located in the center console.
1Rear window sunshade switch
Switch on the ignition (page 40).
Always raise the sunshade fully for its sup-
port against the window frame.Raising the sunshade
Press switch1 briefly.
The sunshade is raised completely.
Stopping the raising procedure
Press switch1 again.
The sunshade stops.
Lowering the sunshade
Press switch1 briefly.
The sunshade is lowered completely.
Stopping the lowering procedure
Press switch1 again.
The sunshade stops.!Make sure the movement of the rear win-
dow sunshade is not restricted by objects on the
rear window shelf. Otherwise, the sunshade or
the objects could be damaged.
Warning!G
When operating the rear window sunshade,
make sure there is no danger of anyone be-
ing harmed by the raising or lowering
procedure.
The raising or lowering procedure can be
immediately halted by briefly pressing the
switch1.
Briefly press switch1 again to raise or low-
er the rear window sunshade completely.
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. Unsupervised use of vehi-
cle equipment may cause an accident
and/or serious personal injury.

215 Controls in detail
Audio system
ItemPage
1CD changer mode selector
AUX mode selector229
219
2Single CD mode selector 231
3Radio mode selector
4Mute function (radio)224
Pause (CD)235
5Volume distribution218
6Sound settings216
7Display
8Alphanumeric keypad
ItemPage
9Speed dialing memory (tele-
phone) in descending order
aAccepting a call
(telephone)240
bTelephone mode selector236
cSpeed dialing memory (tele-
phone) in ascending order237
dTerminating a call
(telephone)241
eCD slot
fCD ejection232
ItemPage
gSoft keys216
hVolume216
jSwitching on/off216
kManual tuning / seek
tuning (radio)222
Track search, reverse (CD)234
lManual tuning / seek
tuning (radio)222
Track search,
fast forward (CD)234

216 Controls in detail
Audio system
Button and soft key operation
In these instructions, the alphanumeric
keypad (right side of radio panel) and the
function buttons (left side of radio panel)
are referred to as “buttons”. The four keys
below the display panel are referred to as
“soft keys”.
Operation
Switching the unit on/off
Switching on
Turn the SmartKey in the starter switch
to position 1 or 2.
If the audio system was on as you
removed the SmartKey from the starter
switch, the audio system will
automatically come back on as you
turn the SmartKey to position 1 or 2.
or
Press M button.
Switching off
Remove SmartKey from starter switch.
or
Press M button.
Adjusting the volume
Turn rotary control of N button.
The volume will increase or decrease
depending on the direction turned.Adjusting sound functions
The bass and treble functions are called up
by pressing the O button.
Settings for bass and treble are stored
separately for the AM and FM wavebands,
weather band, CD mode and telephone
mode.
Bass
Press O button repeatedly until
BASS appears in the display.
!Do not press directly in the display face.
Otherwise, the display will be damaged.
iIf the radio is switched on without the key in
the starter switch, it will automatically switch off
again after approximately 30 minutes.
If your vehicle is equipped with a telephone, the
display may prompt you to enter your PIN (GSM
network) or code (TDMA or CDMA network).
iShould excessively high temperatures occur
while the audio system is being operated, the
display will dim. If temperatures continue to rise,
HIGH TEMP will appear in the display, after which
the audio system will be switched off for a
cooling-down period.
iIf your vehicle equipment includes a Mer-
cedes-Benz specified mobile phone*, you can
adjust its volume separately from the volume of
the audio system while the telephone is being
used.

217 Controls in detail
Audio system
Press + or– soft key to increase or de-
crease tone level accordingly.
or
Press RES soft key briefly to reset bass
tones to their center level.
The radio switches back to the stan-
dard radio menu eight seconds after
the last soft key is pressed.
Adjusting treble
Press O button repeatedly until
TREBLE appears in the display.
Press + or– soft key to increase or de-
crease tone level accordingly.
or
Press RES soft key briefly to reset treble
tones to their center level.
The radio switches back to the stan-
dard radio menu eight seconds after
the last soft key is pressed.
Sound system*
You can either program the sound settings
manually (
page 216) or choose settings
via preset sound characteristics.
You can select from among the following
settings:

STANDARD: conventional stereo sound.

SURROUND: the sound is set for better
three-dimensional acoustic character-
istics.

SPEECH: the sound is optimized for the
spoken word.
Press O button repeatedly until
STANDARD, SURROUND or SPEECH appears
in the display.
Press X or Y soft key repeatedly
until the desired sound setting has
been reached.
The sound is set accordingly.
or
Press RES soft key briefly.
The sound setting is reset depending
on the sound source activated.

Radio mode: STANDARD

CD/AUX mode: SURROUND

Telephone: SPEECH
The radio switches back to the stan-
dard radio menu eight seconds after
the last soft key is pressed.

218 Controls in detail
Audio system
Returning sound functions to factory
settings
Press O button to call up settings
menu in the display.
Press RES soft key briefly; the respec-
tive sound function is reset to its center
level.
or
Press and hold RES soft key until RESET
appears in the display.
The sound settings for bass and treble
are returned to their center level and
the volume is set to a predefined level.
Vehicles with sound system*:
The sound setting is reset depending
on the sound source activated.

Radio mode: STANDARD

CD/AUX mode: SURROUND

Telephone: SPEECH
The radio switches back to the stan-
dard radio menu four seconds after the
last soft key is pressed.
Adjusting volume distribution
Call up fader and balance functions by
pressing the P button.
Fader
Press P button repeatedly until
FADER appears in the display.
Press V or W soft key.The volume is distributed accordingly
between the front and rear of the vehi-
cle.
or
Press RES soft key briefly.
The fader is reset to its center level.
The radio switches back to the stan-
dard radio menu eight seconds after
the last soft key is pressed.
Adjusting balance
Press P button repeatedly until
BALANCE appears in the display.

219 Controls in detail
Audio system
Press X or Y soft key.
The volume is distributed between the
left and right sides of the vehicle.
or
Press RES soft key briefly.
The balance is reset to its center level.
The radio switches back to the stan-
dard radio menu eight seconds after
the last button is pressed.
Returning volume distribution to facto-
ry settings
Press P button to call up settings
menu in the display.
Press RES soft key briefly; the respec-
tive volume distribution is reset to its
center (flat) level.
or
Press and hold RES soft key until RESET
appears in the display.
The volume distribution settings for
fader and balance are set to their cen-
ter level.
The radio switches back to the stan-
dard radio menu four seconds after the
last soft key is pressed.
Telephone* muting
If your vehicle equipment includes a
Mercedes-Benz specified mobile phone*,
you can adjust its volume separately from
the volume of the audio system while the
telephone is being used.Connecting an external audio source
(AUX) to the radio
An external audio source (AUX) can be
connected to the audio system. The
cinch-connector for connecting the exter-
nal audio source (AUX) is located in the
glove box. Please contact an authorized
Mercedes-Benz Center for more informa-
tion.
1External audio source (AUX)
cinch-connector