243 Controls in detail
Audio system
Terminating a call
Press t button.
The current call is terminated and the
muted audio source becomes active
again.
Accepting a second incoming call
If you receive another call during an al-
ready active call, you can accept the sec-
ond call and switch between the two.
Accepting a second call
Place new call by entering tele-
phone number manually.
You are connected to the second
caller; the first caller is kept on hold.
Switching between calls
Press s button.
This switches between the calls.
The non-active call is kept on hold.
Terminating a call
Press t button.
The current call is terminated. The
connection to the caller previously
kept on hold is also interrupted;
however, reconnection is indicated
by an acoustic signal.
Placing a second call
If you wish to place another call during an
already active call, you can place the sec-
ond call and switch between the callers or
combine them into one call. Note that this
feature is dependent on availability from
your mobile phone service provider.
Placing a second call
Place a new call by entering tele-
phone number manually.
Press s button.
You are connected to the second
caller; the first caller is kept on
hold.
Terminating a call
Press t button.
The current call is terminated. The
connection to the caller previously
kept on hold is also interrupted;
however, reconnection is indicated
by an acoustic signal.
Combining two calls
Press s button.
The calls are combined into one
call.
Terminating a combined call
Press t button.
The connection to both callers is
terminated.
iYou will be notified of the second call
acoustically, but you will not see this in
the display.
244 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 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 locked
Press 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 services and/or telephone
functions are active. Check with your
local service providers.
245 Controls in detail
Audio system
Placing a “911” emergency call using
audio head unit with the phone un-
locked
Press hbutton to switch to tele-
phone operation.
Enter 911 using the number keypad on
the audio head unit.
Press 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. TDMA/CDMA network phones
Placing a “911” emergency call using
audio head unit with the phone locked
Press hbutton to switch to tele-
phone operation. CODE?
appears in the audio display.
Enter 911 using the number keypad on
the audio head unit.
Press
OK soft key or sbutton for di-
aling 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. Placing a “911” emergency call using
audio head unit with the phone un-
locked
Press hbutton to switch to tele-
phone operation.
Enter 911 using the number keypad on
the audio head unit.
Press 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.
iIf no SIM card is in the mobile phone, NO SERVICE
appears in the audio dis-
play. In that case, you only can make an
emergency call on the mobile phone it-
self, without the use of the head unit.
255 Controls in detail
Driving systems
1Set current or higher speed
2Set current or lower speed
3Cancel cruise control
4Resume to last set speed
Setting current speed
Accelerate or decelerate to the desired
speed.
Briefly lift1 or depress2 the cruise
control lever.
The current speed is set.
Remove your foot from the accelerator
pedal.
Cruise control is activated.The selected speed appears in the multi-
function display for approximately five sec-
onds, and the corresponding speedometer
segments from the selected speed to the
vehicle maximum speed are illuminated.
Warning!
G
Cruise control brakes automatically so that
the set speed is not exceeded. The brake
pedal depresses when the cruise control en-
gages the brakes.
Keep driver’s foot area clear at all times, in-
cluding the area under the brake pedal. Ob-
jects stored in this area may impair pedal
movement which could interfere with the
braking ability of the cruise control system.
Do not place your foot under the brake pedal
- your foot could become caught.
Keep in mind that cruise control is a conve-
nience system designed to assist the driver
during vehicle operation. The driver is and
must always remain responsible for the ve-
hicle’s speed and for safe brake operation.
iOn uphill or downhill grades, cruise
control may not be able to maintain the
set speed. Once the grade eases, the
set speed will be resumed.
On downhill grades, the cruise control
will hold the set speed with braking
from the vehicle’s brake system.
In addition, on longer downhill grades
the automatic transmission will auto-
matically downshift.
256 Controls in detailDriving systemsCanceling cruise control
There are several ways to cancel cruise
control:
Step on the brake pedal.
Cruise control is canceled. The last
speed set is stored for later use.
or
Briefly push the cruise control lever to
position3.
Cruise control is canceled. The last
speed set is stored for later use.iThe last stored speed is canceled when
you turn off the engine.
iCruise control automatically switched
off, if
you step on the brake pedal.
you press the parking brake pedal.
In this case the segments in the
multifunction display (
page 255)
go out and no warning sounds.
the vehicle speed is below 20 mph
(30 km/h).
ESP
® is in operation or switched off
with the ESP
® switch (
page 91).
you move the gear selector lever in
positionN while driving.
The segments in the multifunction dis-
play (page 255) go out, and an
acoustic warning sounds.
!Moving gear selector lever to
positionN while driving also cancels
cruise control. However, the gear se-
lector lever should not be moved to
positionN while driving except to coast
when the vehicle is in danger of skid-
ding (e.g. on icy roads).iDepressing the accelerator pedal does
not deactivate cruise control. After
brief acceleration (e.g. for passing),
cruise control will resume the last
speed set.
257 Controls in detail
Driving systems
Setting a higher speed
Lift cruise control lever in the direction
of arrow1 and hold it up until the de-
sired speed is reached.
Release the cruise control lever.
The new speed is set.
Setting a lower speed
Depress cruise control lever in the di-
rection of arrow2 and hold it down
until the desired speed is reached.
Release the cruise control lever.
The new speed is set.Fine adjustment in 1 mph
(Canada: 1 km/h) increments
Faster
Briefly tip cruise control lever in the di-
rection of arrow1.
Slower
Briefly tip cruise control lever in the di-
rection of arrow2.Setting to last stored speed
(“Resume” function)
Briefly push cruise control lever in the
direction of arrow4.
The cruise control resumes the last set
speed.
Remove your foot from the accelerator
pedal.
The selected speed appears in the multi-
function display for approximately five sec-
onds, and the corresponding speedometer
segments from the selected speed to the
vehicle maximum speed are illuminated
(
page 255).
iWhen you use the cruise control lever
to decelerate, the brake system will
automatically brake the vehicle if the
engine’s braking power does not brake
the vehicle sufficiently.
Warning!
G
The speed stored in memory should only be
set again if prevailing road conditions per-
mit. Possible acceleration or deceleration
differences arising from returning to the pre-
set speed could cause an accident and/or
serious injury to you and others.
280 Controls in detailUseful featuresShortly after the completion of your
Tele Aid acquaintance call, you will receive
a user ID and password. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock and
more.System self-check
Initially, after switching on the ignition,
malfunctions are detected and indicated
(the indicator lamps in the SOS button, the
Roadside Assistance button• and the
Information button¡ stay on longer
than ten seconds or do not come on).
The message
Tele Aid malfunction
Drive to Workshop
appears in the
multifunction display.
iThe Tele Aid system utilizes the cellular
network for communication and the
GPS (G
lobal P
ositioning S
ystem) satel-
lites for vehicle location. If either of
these signals is unavailable, the
Tele Aid system may not function and if
this occurs, assistance must be sum-
moned by other means.
Warning!
G
If the indicator lamps in the SOS button, in
the Roadside Assistance button and/or in
the Information button remain illuminated
constantly in red and/or message Tele Aid malfunction Drive to
Workshop
is displayed in the multifunction
display after the system self-check, a mal-
function in the system has been detected.
If a malfunction is indicated as outlined
above, the system may not operate as
expected. Have the system checked at the
nearest Mercedes-Benz Center as soon as
possible.
281 Controls in detail
Useful features
Emergency calls
An emergency call is initiated
automatically following an accident in
which the emergency tensioning devices
(ETDs) or air bags deploy.
An emergency call can also be initiated
manually by opening the cover next to the
interior rear view mirror labeled SOS, then
briefly pressing the button located under
the cover. See (
page 282) for
instructions on initiating an emergency call
manually.
Once the emergency call is in progress, the
indicator lamp in the SOS button will begin
to flash. The message
Connecting call
appears in the multifunction display and
the audio system is muted. When the
connection is established, the message
Call connected
appears in the multifunc-
tion display. All information relevant to the
emergency, such as the location of the
vehicle (determined by the GPS satellite
location system), vehicle model, identifica-
tion number and color are generated.A voice connection between the Response
Center and the occupants of the vehicle
will be established automatically soon af-
ter the emergency call has been initiated.
The Response Center will attempt to
determine more precisely the nature of the
emergency provided they can speak to an
occupant of the vehicle.
The Tele Aid system is available if
it has been activated and is
operational. Activation requires a
subscription for monitoring services,
connection and cellular air time
the relevant cellular phone network
and GPS signals are available and pass
the information on to the Response
CenteriLocation of the vehicle on a map is only
possible if the vehicle is able to receive
signals from the GPS satellite network
and pass the information on to the
Response Center.
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
ten seconds.
Should this occur, assistance must be
summoned by other means.