Page 206 of 464
206 Controls in detailAudio systemSearching and selecting phone book en-
tries by number
Press the
NUM
key.
The current number is marked in the
display.
Press either thed or cbutton.
The stored entries are selected
according to numerical order.
or
Press either thef or ebutton.
The stored entries are selected in
increments of 5 (e.g. Entry
M5, Entry
M10
,etc.)Starting dialing process
Once you have selected a number,
press the
SND
key.
Repeat dialing
If the number dialed is busy, you can again
place calls to the last ten telephone num-
bers dialed using the repeat dialing func-
tion.Manual repeat dialing (redial)
Press the
SND
key.
The last number dialed is shown in the
display.
Select the desired telephone number
usingd, c, f or
ebutton.
The abbreviation
L and the number of
the entry are shown in the top line of
the display.
When you have selected a number,
press the
SND
key.
The call will be made.
Page 207 of 464

207 Controls in detail
Audio system
Automatic repeat dialing (redial)
If a call cannot be connected, press
the
SND
key.
REDIAL
will appear on the display and re-
peated attempts to place the call will be
made for the next four minutes.
Selecting numbers directly from the
directory
Enter previously selected 3-digit
(1-999) number of the entry using
number keys 4 to M.
Press the
RCL
key.
The telephone number stored under
that entry will be dialed.
Press the
SND
key.
The call will be made.Speed dialing
Input desired entry number using
number keys 4 to M.
A maximum of two digits can be en-
tered.
If necessary, correct the last number
entered with the
CLR
key.
Press the
SND
key.
The telephone number stored under
that entry will be dialed. The number,
L
and the full entry number will be shown
in the display.Quick-dialing
Press one of the desired number
buttons4 toM longer than one
second.
The telephone number saved under
that number will be dialed.!Please be aware that button 4
might already be reserved for an emer-
gency call number.
Page 208 of 464

208 Controls in detailAudio systemEmergency call
Press button4 longer than one
second.
A call will be placed to the saved num-
ber (e.g. 911).
You can make an emergency call to an
emergency rescue station with a mobile
communications network.
The emergency call will be placed as long
as the corresponding mobile communica-
tions network is available. To do this,
switch the telephone on if this has not al-
ready been done.The call will also be placed even if the un-
lock code is not entered.
Emergency calls may not be possible with
all telephone networks or if certain net-
work services and/or telephone functions
are active. Check with your local network
operation company. It may take some time
to set up an emergency call.
To use this function you must ensure that
the number stored in memory location 1 is
the number to be dialed in case of emer-
gency.
If an emergency call cannot be connected,
the message
SYSTM BUSY
appears.Accepting an incoming call
Accepting an incoming call in telephone
mode
With an incoming call, a ringing tone can
be heard and the caller’s telephone num-
ber, or the name under which this tele-
phone number has been saved in the
telephone book, appears on the display. If
the caller’s number is not transmitted,
CALL
will appear in the display.
Press the
SND
key to accept call.
!Please be aware that the 911 emergen-
cy call system is a public service. Using
it without due cause is a criminal of-
fense.
Page 209 of 464

209 Controls in detail
Audio system
Accepting an incoming call in cassette,
CD or radio mode
If the telephone is activated in the back-
ground (receiving symbol
S visible on dis-
play), the audio source is muted when a
call is received. The ringing tone is heard
and the caller’s telephone number or the
name under which this telephone number
has been saved in the telephone book ap-
pears on the display. If the caller’s number
is not transmitted,
CALL
appears in the dis-
play.
Press the
SND
key to accept the call.Muting a call
It is possible to mute a call; the caller is
then no longer able to hear you.
Mute on
Press the
MUT
key.
Mute off
Press the
MUT
key.
Terminating a call
Press the
END
key.
The current call is terminated.Call waiting
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
Press the
SND
key.
You are connected with the second
caller, the first call is muted.
Switching between the calls
Press the
SND
key.
Terminating the second call
Press the
END
key.
The current call will be terminated. You
are connected with the muted call
again.
Page 251 of 464
251 Controls in detail
Useful features
Cup holder in the dashboardOpening cup holder
Push cover1.
The cup holder opens automatically.
Closing cup holder
Push the cup holder back until it engag-
es.Armrest storage space
Opening compartment in armrest
Lift armrest by pulling on handle1.
Closing
Lower armrest until it locks into place.
Warning!
G
When not in use, keep the cup holder
closed. Place only containers that fit into the
cup holder to prevent spills. Use lids on
open containers and do not fill containers to
a height where the contents, especially hot
liquids, could spill during vehicle
maneuvers.
!Do not store any items between the
telephone holder and the cover for the
blower. Otherwise these items could
be damaged when the holder is closed.
Use the space in the front door pocket
for stowing.
Page 252 of 464
252 Controls in detailUseful featuresOpening telephone compartment
Lift armrest by pushing button2
or3.
Closing telephone compartment
Lower armrest until it locks into place.
Locking compartment
Remove the mechanical key from the
SmartKey (
page 348).
Turn the compartment lock to
position5.
Unlocking compartment
Turn the compartment lock to
position4.
Insert the mechanical key in the
SmartKey.Changing inclination of armrest
Pull up on armrest.
Lowering armrest
Pull handle1 to lower armrest.Storage bags
Storage bags are located on the rear side
of the front seats.
Warning!
G
Do not place heavy or fragile objects, or ob-
jects having sharp edges, in the storage
bags.
In an accident, during hard braking or sud-
den maneuvers, they could be thrown
around inside the vehicle, and cause injury
to vehicle occupants.
Page 256 of 464

256 Controls in detailUseful featuresTelephone*
Radio transmitters, such as a portable tele-
phone or a citizens band unit, should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
T he e x t e r n a l a n t e n n a m u s t b e a p p r o v e d b y
Mercedes-Benz. Please contact an autho-
rized Mercedes-Benz Center for informa-
tion on the installation of an approved
external antenna. Refer to the radio trans-
mitter operation instructions regarding use
of an external antenna.You can take and place telephone calls us-
ing theí andì buttons on the
steering wheel. To carry out other tele-
phone functions, use the control system
(
page 154).
See separate operating manual for instruc-
tions on how to use the telephone.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.
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, traf-
fic and weather conditions permit. Some ju-
risdictions prohibit the driver from using a
cellular telephone while driving a vehicle.
Only operate the COMAND* (Cockpit Man-
agement and Data System)
1 if road, traffic
and weather conditions permit.
1Observe all legal requirements.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of approx. 44 feet (ap-
proximately 13.5 m) every second.
Page 281 of 464

281 Operation
Driving instructions
Control and operation of radio trans-mitters
COMAND*, radio and telephone*Telephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
Refer to the radio transmitter operation in-
structions regarding use of an external an-
tenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. Keep your vehicle in proper
operating condition by following our rec-
ommended maintenance instructions as
outlined in your Service Booklet.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit Man-
agement and Data System), radio or tele-
phone
1 if road, traffic and weather
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every sec-
ond.
1Observe all legal requirements.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or serious
personal injury.
!To prevent damage to the catalytic con-
verters, only use premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be dealt with prompt-
ly. Otherwise, excessive unburned fuel
may reach the catalytic converter,
causing it to overheat and start a fire.