2009 MERCEDES-BENZ SLR service

145 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 safety
Location of the audio system
The audio system control panel is located
behind a cover in the upper part of the cen-
ter console.
1Cover
Briefly press on the lower part of
cover1.
The cover opens automatically.
Warning!
G
In order to avoid distraction which could
lead to an accident, the driver should enter
system settings with the vehicle at a stand-
still 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 cover-
ing a distance of 44 feet (approximately
14 m) every second.
Warning!
G
Any alterations made to electronic compo-
nents can cause malfunctions.
The radio, amplifier, CD changer and
telephone are interconnected. When one of
the components is not operational or has
not been removed/replaced properly, the
function of other components may be im-
paired.
This condition might seriously impair the
operating safety of your vehicle.
We recommend that you have any service
work on electronic components carried out
by an authorized Mercedes-Benz Center.

158 Controls in detailAudio systemCD changer operation
General notes
Should excessively high temperatures oc-
cur while in CD mode,
CD TEMP HIGH
will
appear in the display and the CD will be
muted. The unit will then switch back to
the last operating mode used until the tem-
perature has decreased to a safe operating
level.
Should excessively low temperatures
occur while in CD mode,
CD TEMP LOW
will
appear in the display, but the CD will
continue to play.
Handle CDs carefully to prevent interfer-
ence during playback. Avoid fingerprints
and dust on CDs. Do not write on CDs or
apply any labels or other material to them.Only use original CDs. Using copied CDs
may create problems during playback.
Clean CDs from time to time with a com-
mercially available cleaning cloth. Do not
use solvents, anti-static sprays, etc. for
cleaning. Replace the CD in its case after
use. Protect CDs from heat and direct
sunlight.
Only use CDs, which bear the label shown
and that conform to the compact disc
digital audio standard (IEC 60908). You
can therefore only use CDs with a
maximum thickness of 1.3 mm.
i
Use of CDs which do not meet this standard
may cause damage to the CD changer. Do not
play single-CDs (80 mm) with an adapter.
Your CD drive has been designed to play CDs
which correspond to the IEC 60908 standard.
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.Warning!
G
The CD changer is a Class 1 laser product.
There is a danger of invisible laser radiation
if the cover is opened or damaged.
Do not remove the cover. The CD changer
does not contain any parts which can be ser-
viced by the user. For safety reasons, have
any service work which may be necessary
performed only by qualified personnel.

166 Controls in detailAudio systemEmergency 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 connected with the Blue-
tooth
® interface. Unless otherwise speci-
fied, 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
yourself. Placing a “911” emergency call using
audio head unit with the phone locked

Press hbutton to switch to
telephone operation.
You see
CODE?
in the audio display.

Press button4 on the audio head
unit until you see
911
in the audio
display.
You see
911
in the audio display while
the telephone establishes the connec-
tion.

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
criminal offense.
i
Emergency 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.

215 Controls in detail
Useful features
Tele Aid
Shortly after the completion of your Tele
Aid acquaintance call, you will receive a
user ID and password in the mail. You may
use this password to access the Tele Aid
section in“Owner’s Online” at
www.mbusa.com. The “My Tele Aid” sec-
tion will give you access to account infor-
mation, remote door unlock and more.The Tele Aid system is available if


it has been activated and is operation-
al. Activation requires a subscription
for monitoring services, connection
and cellular air time


vehicle battery power is available


the relevant cellular phone network
and GPS signals are available and pass
the information on to the Response
CenterThe Tele Aid system
(Tele
matic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response:

Automatic and manual emergency


Roadside Assistance


Information
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and
cellular and GPS coverage is available.
The Tele Aid system utilizes the cellular
network for communication and the GPS
(Global P
ositioning S
ystem) satellites for
vehicle location. If either of these signals
are unavailable, the Tele Aid system may
not function and if this occurs, assistance
must be summoned by other means.
!
In order to activate the Tele Aid system, a
subscriber agreement must be completed. To
ensure your system is activated and operational,
please press the ¡button to perform the ac-
quaintance call. Failure to complete either of
these steps may result in a system that is not ac-
tivated.
If you have any questions regarding activation,
please call the Response Center at
1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada).
i
Location of the vehicle on a map is only pos-
sible if the vehicle is able to receive signals from
the GPS satellite network and pass the informa-
tion on to the Response Center.

217 Controls in detail
Useful features
A voice connection between the Response
Center and the occupants of the vehicle
will be established automatically soon
after the emergency call has been initiat-
ed. The Response Center will attempt to
determine more precisely the nature of the
accident provided they can speak to an
occupant of the vehicle.Initiating an emergency call manually
1Cover
2SOS button

Briefly press on cover1.
The cover will open.

Press SOS button2 briefly.
The indicator lamp in SOS button2
will flash until the emergency call is
concluded.

Wait for a voice connection to the
Response Center.

Close cover1 after the emergency
call is concluded.
Warning!
G
If the indicator lamp in the SOS button is
flashing continuously and there was no
voice connection to the Response Center
established, then the Tele Aid system could
not initiate an emergency call (e.g. the rele-
vant cellular phone network is not available).
The message
Call Failed
appears in the
multifunction display for approximately
10 seconds.
Should this occur, assistance must be
summoned by other means.
i
The “911” emergency call system is a public
service. Using it without due cause is a criminal
offense.
Warning!
G
If you feel at any way in jeopardy when in the
vehicle (e.g. smoke or fire in the vehicle, ve-
hicle in a dangerous road location), please
do not wait for voice contact after you have
pressed the emergency button. Carefully
leave the vehicle and move to a safe loca-
tion. The Response Center will automatically
contact local emergency officials with the
vehicle’s approximate location if they re-
ceive an automatic SOS signal and cannot
make voice contact with the vehicle
occupants.

218 Controls in detailUseful featuresRoadside Assistance button •
The Roadside Assistance button• is
located in the center armrest cover.
1Roadside Assistance button•
Open the storage compartment be-
tween the backrests (
page 210).

Press and hold the button1 for longer
than 2 seconds.
A call to a Mercedes-Benz Roadside
Assistance dispatcher will be initiated.
The button• will flash while the call
is in progress. The message Connecting Call
will appear in the
multifunction display.When the connection is established, the
message
Call Connected
appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and lo-
cation (subject to availability of cellular
and GPS signals).
A voice connection between the Roadside
Assistance dispatcher and the occupants
of the vehicle will be established.

Describe the nature of the need for
assistance.
The Mercedes-Benz Roadside Assistance
dispatcher will either dispatch a qualified
Mercedes-Benz technician or arrange to
tow your vehicle to the nearest authorized
Mercedes-Benz Center. For services such
as labor and/or towing, charges may
apply. Refer to the Roadside Assistance
Manual for more information.These programs are only available in the
USA:


Sign and Drive services: Services such
as jump start, a few gallons of fuel or
the replacement of a flat tire are
obtainable.
i
If the indicator lamp in the Roadside Assis-
tance button• is flashing continuously and
there was no voice connection to the Response
Center established, then the Tele Aid system
could not initiate a Roadside Assistance call (e.g.
the relevant cellular phone network is not avail-
able). The message
Call Failed!
appears in
the multifunction display.
Roadside Assistance calls can be terminated us-
ing the tbutton on the multifunction
steering wheel.

219 Controls in detail
Useful features
Information button ¡
The Information button¡ is located in
the center armrest cover.
1Information button¡ 
Open the center storage compartment
(page 210).

Press and hold the button1 for longer
than 2 seconds.
A call to the Customer Assistance
Center will be initiated. The button will
flash while the call is in progress. The
message
Connecting Call
will appear
in the multifunction display.When the connection is established, the
message
Call Connected
appears in the
multifunction display. The Tele Aid system
will transmit data generating the vehicle
identification number, model, color and
location (subject to availability of cellular
and GPS signals).
A voice connection between the Customer
Assistance Center representative and the
occupants of the vehicle will be estab-
lished. Information regarding the operation
of your vehicle, the nearest
Mercedes-Benz Center or Mercedes-Benz
USA products and services is available to
you.
For more details concerning the Tele Aid
system, please visit www.mbusa.com and
use your ID and password (sent to you
separately) to learn more (USA only).
i
If the indicator lamp in the Information
button¡ is flashing continuously and no
voice connection to the Response Center was
established, then the Tele Aid system could not
initiate an Information call (e.g. the relevant
cellular phone network is not available). The
message
Call Failed
appears in the
multifunction display.
Information calls can be terminated using the
tbutton on the multifunction steering
wheel.

220 Controls in detailUseful featuresCall priority
If other service calls such as a Roadside
Assistance call or Information call are
active, an Emergency call is still possible.
In this case, the Emergency call will take
priority and override all other active calls.
The indicator lamp in the respective button
flashes until the call is concluded. Emer-
gency calls can only be terminated by a Re-
sponse Center or Customer Assistance
Center representative, whereas Roadside
Assistance and Information calls can also
be terminated by pressing button
t
on
the multifunction steering wheel.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 in the “My Tele Aid” section
of “Owner’s Online”, using the ID and pass-
word (USA only).
The Response Center will then unlock your
vehicle with the remote door unlocking
feature.
i
When a Tele Aid call has been initiated, the
audio system is muted and the selected mode
(radio or CD) pauses. The mobile phone (if con-
nected) switches off. If you must use this phone,
we recommend that you use it only with the ve-
hicle at a standstill in a safe location. The multi-
function display in the instrument cluster is
available for use. After the Tele Aid call has end-
ed, the optional mobile phone switches on again.
A PIN entry might be necessary.
i
The remote door unlock feature is available
if the relevant cellular phone network is
available.
The SOS button will flash and the message
Connecting Call
will appear in the multifunc-
tion display to indicate receipt of the door unlock
command.
Once the vehicle is unlocked, a Response Center
specialist may attempt to establish voice contact
with the vehicle occupants.
If the trunk recessed handle was pulled for more
than 20 seconds before door unlock authoriza-
tion was received by the Response Center, you
must wait 15 minutes before pulling the trunk
recessed handle again.