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.
220 Controls in detail
Audio system
Calling up AUX mode
Press and hold Q button until AUX
appears in the display.
The device connected with the external
audio source cinch-connector is heard,
provided it is switched to playback.
You can adjust the volume (
page 216),
the sound settings (
page 216) and the
volume distribution (
page 218) for the
AUX input.
The following settings can be made in the
audio AUX mode:
Volume (page 216)
Sound settings (page 216)
Volume distribution (page 218)Canceling AUX mode
Press any audio source button.
The AUX mode is canceled.
Warning!G
Only operate an external audio source (AUX)
when the vehicle is stationary. There is a risk
of accident by being distracted from road
and traffic conditions if you operate an ex-
ternal audio source (AUX) while the vehicle
is in motion.
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
Due to the different volumes of the external
audio sources, system messages (e.g. traffic
and navigation announcements) may be
much louder. You may need to disable these
system messages or adjust the volume of
these messages manually.
iPlease refer to the relevant manufacturers
operating instruction for the external audio
source device.
iThe volume of external audio sources is ex-
tremely variable. It is possible that a device con-
nected as an external audio source will sound
quieter or louder in the vehicle or that the usual
maximum volume cannot be achieved. On cer-
tain devices the volume can be set separately. In
this case, start at a moderate volume and in-
crease it slowly. In this way, you can determine
whether the system is capable of playback with-
out distortion, even at high volume.
229 Controls in detail
Audio system
CD mode
Safety precautions
General notes
The system may not be able to play audio
CDs with copy protection.
Playing copied CDs may cause
malfunctions during playback.Do not use CDs with an eight cm diameter,
not even with a CD adapter. Attempting to
play CDs with an eight cm diameter or
playing such CDs with an adapter may
cause damage to the CD drive. Such dam-
age is not covered by the Mercedes-Benz
Limited Warranty.
Should excessively high or low tempera-
tures occur while in CD changer mode*,
CD ERROR will appear in the display, and the
CD will be muted until the temperature has
reached an acceptable level for the system
to continue operation.
The single CD player play audio CDs, the
CD changer* can play audio CDs as well as
CDs with MP3 files.
Warning!G
The single CD player and the CD changer*
are Class 1 laser products. There is a danger
of invisible laser radiation if the housing is
opened or damaged.
Do not open the housing. The single CD
player and the CD changer* do not contain
any parts that can be serviced by the user.
For safety reasons, have any necessary ser-
vice work performed only by qualified
personnel.
Warning!G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and oper-
ate the audio system only if permitted by
road, weather and traffic conditions.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car covers a
distance of 44 feet (approximately 14 m)
every second.
!If you affix stickers to the CDs, they can be-
come warped due to the heat that develops in
the CD drive or CD changer.
In certain situations, the CDs can then no longer
be ejected and cause damage to the drive. Such
damage is not covered by the Mercedes-Benz
Limited Warranty.
!Your CD drive or CD changer* has been de-
signed to play CDs which correspond to the
EN 60908 standard. You can therefore only use
CDs with a maximum thickness of 1.3 mm.
If you insert thicker data carriers, e.g. ones that
have data on both sides (one side with DVD data,
the other side with audio data), they cannot be
ejected and will damage the drive.
236 Controls in detail
Audio system
GSM network phonesUsing your Mercedes-Benz specified mo-
bile phone*, a number of functions and op-
erating steps can be performed and
displayed in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the cellular telephone*.
I f y o u r a u d i o s y s t e m i s s e t u p f o r t e l e p h o n e
operation, the tsymbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile phone* into the tele-
phone cradle, you will be prompted to en-
ter your PIN for 30 seconds (
page 237).
This display disappears when you press
any button.
When your mobile phone is inserted into
the telephone cradle, you will see the re-
ception strength in the upper right-hand
corner of the display.Switching on the telephone
Switching on the telephone
Pressh button.
If the telephone was previously
switched off,
PROCESSING appears in
the display and you will then be
prompted to enter your PIN.
Switching off the telephone
Pressh button for approximately
three seconds.
PROCESSING appears in the display until
the telephone is off. Afterward,
PHONE OFF appears in the display.
Warning!G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his /her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of 44 feet
(approximately 13.5 m) every second.
1Observe all legal requirements.
242 Controls in detail
Audio system
TDMA or CDMA network phonesUsing your Mercedes-Benz specified mo-
bile phone*, a number of functions and op-
erating steps can be performed and
displayed in the audio system display.
Further operating instructions not covered
here can be found in the operating instruc-
tions for the multifunction steering wheel
and the mobile phone*.
I f y o u r a u d i o s y s t e m i s s e t u p f o r t e l e p h o n e
operation, the t symbol will appear in
the display.
When you insert your Mercedes-Benz
specified mobile phone* into the tele-
phone cradle, you will be prompted to en-
ter your PIN for 30 seconds (
page 237).
This display disappears when you press
any button.
When your mobile phone is inserted into
the telephone cradle, you will see the re-
ception strength in the upper right-hand
corner of the display.Switching on the telephone
Switching on the telephone
Press h button.
If you have programmed an unlock
code for the telephone, you must now
enter the code.
Enter code using buttons 1
toR.
If necessary, correct number entered
with the
CLR soft key. Press soft key
briefly to delete the last digit entered;
press soft key and hold to delete the
complete number.
Warning!G
Please do not forget that your primary re-
sponsibility is to drive the vehicle. A driver’s
attention to the road must always be
his /her primary focus when driving. For
your safety and the safety of others, we rec-
ommend that you pull over to a safe location
and stop before placing or taking a tele-
phone call.
If you choose to use the telephone
1 while
driving, please use the hands-free device
and only use the telephone when road,
weather and traffic conditions permit. Some
jurisdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of 44 feet
(approximately 13.5 m) every second.
1Observe all legal requirements.
248 Controls in detail
Audio system
Emergency calls “911”
The following describes how to dial a “911”
emergency call using the audio system
head unit when a Mercedes-Benz specified
mobile phone* is inserted in the phone
cradle*. Unless otherwise specified, the
descriptions refer to the audio system
head unit.
Consult the separate telephone operating
instructions that came with your mobile
phone* for information on how to place a
“911” emergency call on the mobile
phone*. The following conditions must be met for a
“911” emergency call:
Telephone must be switched on.
The corresponding mobile communica-
tions network must be available.
If you cannot make an emergency call, you
will have to initiate rescue measures your-
self. GSM network phones
Placing a “911” emergency call using
audio head unit with the phone lockedPress hbutton to switch to tele-
phone operation.
PIN? appears in the audio display.
Enter 911 using the number keypad on
the audio head unit.
Press OK soft key or sbutton for
dialing to begin.
DIALING appears in the audio display
while the telephone establishes the
connection.
Wait until the emergency call center
answers, then describe the emergency. Warning!G
The “911” emergency call system is a public
service. Using it without due cause is a crim-
inal offense.
iEmergency calls may not be possible with all
telephone networks or if certain network servic-
es and/or telephone functions are active. Check
with your local service providers.
250 Controls in detail
Power windows
Opening and closing the windows
The side windows are opened and closed
electrically. The switches for all the side
windows are on the driver’s door. The
switches for the respective windows are
on the front passenger door and the rear
side trim panels.
1Left front window
2Right front window
3Right rear window
4Left rear window
5Rear window override switch
(
page 88)
Warning!G
When closing the windows, make sure there
is no danger of anyone being harmed by the
closing procedure.
The closing of the door windows can be im-
mediately halted by releasing the switch or,
if switch was pulled past the resistance
point and released, by either pressing or
pulling the respective switch.
The closing of the rear side windows can be
immediately halted by releasing the switch.
The door windows are equipped with the ex-
press-close and automatic reversal func-
tion. If a door window encounters an
obstruction that blocks its path in a circum-
stance where you pulled the switch past the
resistance point and released it to close the
window, the automatic reversal function will
stop the window and open it slightly.
If a door window encounters an obstruction
that blocks its path in a circumstance where
you are closing the window by pulling and
holding the switch, by pressing and holding
button ‹on the SmartKey, by pressing
and holding the lock button (vehicles with
KEYLESS-GO*) on an outside door handle,
CLK cabriolet: by operating the soft top
switch, or by pressing and holding
button, ore on the climate control
panel, the automatic reversal function will
not operate.
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.
251 Controls in detail
Power windows
Switch on the ignition (page 40).
Opening the windows
Press switch1 to4 to the resistance
point.
The corresponding window will move
downwards until you release the
switch.
Closing the windows
Pull switch1 to4 to the resistance
point.
The corresponding window will move
upwards until you release the switch.Fully opening the door windows
(Express-open)
Press switch1 or2 past the
resistance point and release.
The corresponding window opens
completely.
iYou can also open or close the windows us-
ing the:
SmartKey (summer opening/convenience
feature) (
page 253)
CLK cabriolet: Soft top switch (page 255).
Depending on current position, the windows may
also open or close when:
the air recirculation button, in the con-
trol panel of the climate control
(
page 191) or automatic climate control
(
page 201) is pressed and held
or
the charcoal filter buttone in the control
panel of the automatic climate control
(
page 201) is pressed and held
iOperating the rear side windows from the
rear is not possible if you activate the override
switch (
page 88).
iAfter switching off the ignition (page 38)
or removing the SmartKey from the starter
switch, the power windows can be operated:
until you open a door
for at least 5 minutes if no door was opened
Warning!G
If you pull and hold the switch up when
closing the window, and upward movement
of the window is blocked by some obstruc-
tion including but not limited to arms, hands,
fingers, etc., the automatic reversal will not
operate.