184 Controls in detail
Good visibility
For information on the windshield wipers,
see “Windshield wipers” (
page 55).
Headlamp cleaning system*
The button is located on the left side of the
dashboard.
1Headlamp washer button
Switch on the ignition (page 38).
Press button1.
The headlamps are cleaned with a
high-pressure water jet.For information on filling up the washer
reservoir, see “Windshield washer system
and headlamp cleaning system*”
(
page 479).
Rear view mirrors
For more information on setting the rear
view mirrors, see “Mirrors” (
page 45).
Interior rear view mirror, antiglare
position
1Lever
Tilt the mirror to the antiglare position
by moving lever1 towards the wind-
shield.
The interior rear view mirror is dimmed.
iThe headlamps will automatically be
cleaned when you have
switched on the headlamps
and
operated the windshield wipers with wind-
shield washer fluid fifteen times
When you switch off the ignition, the counter
resets.
215 Controls in detail
Audio system
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.
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 215) 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.
216 Controls in detail
Audio 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 eight seconds after
the last soft key is pressed.
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.
217 Controls in detail
Audio system
Adjusting balance
Press P button repeatedly until
BALANCE appears in the display.
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 optional dealer-installed cinch-connec-
tor* for connecting an external audio
source may become available for your ve-
hicle model. Feature description is based
on preliminary information at time of print-
ing. Contact an authorized Mercedes-Benz
Center for availability.
You can adjust the volume (page 214),
the sound settings (
page 215) and the
volume distribution (
page 216) for the
AUX input.
224 Controls in detail
Audio system
Selecting a station
The following options are available:
Selecting a station using the selected
category (
page 225).
Tuning via station presets
(
page 224).
Tuning via scan search (page 225).
Tuning via manual channel input
(
page 224).
Tuning via the program category list
(
page 225).
Tuning via station presets
Ten satellite radio station presets are avail-
able.
You can access the presets via number
keys.Accessing via number keys
Enter number of preset you wish to se-
lect, e.g. 1.
The radio plays the station stored un-
der this number and the PTY function
changes to the category corresponding
to the station.
Tuning via manual channel input
Example: tuning in channel 16
Press *.
Input line appears in the main radio
menu.
Use number keys to enter desired
channel within eight seconds,
e.g.1 6.
The system tunes to channel 16.
The station you have selected begins to
play.
iYou can only enter available channel num-
bers.
226 Controls in detail
Audio system
Obtaining additional text information
Additional text information (artist, title) re-
lated to the current channel can be dis-
played.
Press INF soft key.
The title being played is displayed.
Press INF soft key again.
The name of the artist performing the
title being played is displayed.Storing stations
Tune in desired station.
Press and hold desired station button
1 to R until a brief signal tone is
heard.
The frequency is stored on the selected
station button.
The radio saves the current station at
the memory preset selected. The mem-
ory preset selected appears in the sta-
tus line, e.g. S3.Calling up the ESN information menu
Press INF soft key.
Press ESN soft key.
The twelve-digit electronic serial num-
ber (ESN) of the SAT tuner* installed in
your vehicle is displayed.
Press RET soft key to exit the menu.
iIf a button is not pressed within
four seconds, the radio will return to the stan-
dard display.
iThere are ten presets available.
An existing entry is overwritten in the memory
list when a new entry is given.
263 Controls in detail
Driving systems
Driving systems
The driving systems of your vehicle are de-
scribed on the following pages:
Cruise control, with which the vehicle
can maintain a preset speed.
Parktronic* (CLK 63 AMG (USA),
Canada all vehicles), which serves as a
parking assistant.
For information on the BAS, ABS, and
ESP
®, see “Driving safety systems”
(
page 88).
Cruise control
Cruise control automatically maintains the
speed you set for your vehicle.
Use of cruise control is recommended for
driving at a constant speed for extended
periods of time.
You can set or resume cruise control at any
speed over 20 mph (30 km/h).
The cruise control function is operated by
means of the cruise control lever.
The cruise control lever is the uppermost
lever on the left-hand side of the steering
column (
page 24).
Warning!G
Cruise control is a convenience system de-
signed to assist the driver during vehicle op-
eration. The driver is and must always
remain responsible for the vehicle’s speed
and for safe brake operation.
Only use cruise control if the road, traffic
and weather conditions make it advisable to
travel at a steady speed.
The use of cruise control can be danger-
ous on winding roads or in heavy traffic
because conditions do not allow safe
driving at a steady speed.
The use of cruise control can be danger-
ous on slippery roads. Rapid changes in
tire traction can result in wheel spin and
loss of control.
Deactivate cruise control when driving
in fog.
The “Resume” function should only be oper-
ated if the driver is fully aware of the previ-
ously set speed and wishes to resume this
particular preset speed.
292 Controls in detail
Useful features
Call priority
If other service calls such as a Roadside
Assistance call or Information call are ac-
tive, an Emergency call is still possible. In
this case, the Emergency call will take pri-
ority and override all other active calls.Remote door unlock
In case you have locked your vehicle unin-
tentionally (e.g. SmartKey inside vehicle),
and the reserve SmartKey is not handy:
Contact the Mercedes-Benz Response
Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
You will be asked to provide your pass-
word which you provided when you
completed the subscriber agreement.
Then return to your vehicle and pull the
trunk recessed handle for a minimum
of 20 seconds until the SOS button is
flashing.
The message
Connecting call ap-
pears in the multifunction display.
As an alternative, you may unlock the vehi-
cle via Internet using the ID and password
sent to you shortly after the completion of
your acquaintance call.
The Response Center will then unlock your
vehicle with the remote door unlocking
feature.
iThe indicator lamp in the respective button
flashes until the call is concluded. Calls can only
be terminated by a Response Center or Custom-
er Assistance Center representative except
Roadside Assistance and Information calls,
which can also be terminated by pressing
buttont on the multifunction steering wheel
or the respective button for ending a telephone
call on the audio system or the COMAND* head
unit.
!If the indicator lamp continues to flash or
the system does not reset, contact the Response
Center at 1-800-756-9018 (in the USA), or
1-888-923-8367 (in Canada), or Mercedes-Benz
Customer Assistance at 1-800-FOR-MERCedes
(1-800-367-6372) in the USA, or Customer Ser-
vice at 1-800-387-0100 in Canada.
iWhen a Tele Aid call has been initiated, the
audio system or the COMAND* system audio is
muted and the selected mode (radio or CD)
pauses. The optional cellular phone (if installed)
switches off. If you must use this phone, the ve-
hicle must be parked. Disconnect the coiled cord
and place the call. The COMAND* navigation
system (if engaged) will continue to run. The dis-
play in the instrument cluster is available for use,
and spoken commands are only available by
pressing the RPT button on the COMAND* head-
unit. A pop-up window will appear in the
COMAND* display to indicate that a Tele Aid call
is in progress.