73 Safety and Security
Driving safety systems
For more information, see “Practical hints”
section (
page 549) and (
page 582).
ETS
The Electronic Traction System is a compo-
nent of ESP
®.
The Electronic Traction System (ETS) im-
proves the vehicle’s ability to utilize avail-
able traction, especially under slippery road conditions. The brakes are applied to
the spinning wheel and power is trans-
ferred to the wheel(s) with traction.
The ESP
® warning lampvin the instru-
ment cluster starts to flash at any vehicle
speed, as soon as a tire loses traction and
the wheel begins to spin.
When you switch off the ESP
®, the ETS is
still enabled.Switching off the ESP
®
To improve the vehicle’s traction, turn off
the ESP
® in driving situations where it
would be advantageous to have the drive
wheels spin and thus cut into surfaces for
better grip such as:
when driving with snow chains
in deep snow
in sand or gravel
i
The ESP
® will only function properly if you
use wheels of the recommended tire size
(
page 655).
!
Because of the ESP’s
® automatic operation,
the engine and ignition must be shut off
(SmartKey in starter switch position0 or1 or
KEYLESS-GO start/stop button* in position0
or1) when
the parking brake is being tested on a brake
test dynamometer
the vehicle is being towed with the
front/rear axle raised
Active braking action through the ESP
® may oth-
erwise seriously damage the brake system.
Warning!
G
If you are driving too fast, the Electronic
Traction System cannot reduce the risk of
an accident.
The ETS cannot prevent the natural laws of
physics from acting on the vehicle.i
If the yellow ESP
® warning lampv
comes on while driving, the ETS is being
switched off temporarily to prevent overheating
of the drive wheel brakes. In addition, the mes-
sage “ESP Currently unavailable See Oper. Man-
ual” appears in the multifunction display.
Warning!
G
The ESP
® should not be switched off during
normal driving other than in the circum-
stances described below. Disabling of the
system will reduce vehicle stability in stan-
dard driving maneuvers.
!
Turn the ESP
® on immediately if the afore-
mentioned circumstances do not apply anymore.
i
DISTRONIC Plus* cannot be activated when
the ESP
® has been switched off.
74 Safety and SecurityDriving safety systemsWhen you switch off the ESP
®
the ESP
® does not stabilize the vehicle
the engine output is not limited, which
allows the drive wheels to spin and
thus cut into surfaces for better grip
the traction control will still brake a
spinning wheel
the ESP
® continues to operate when
you are braking
1ESP
® off/on
Press ESP
® switch1 until the ESP
®
warning lampv in the speedometer
comes on.
The ESP
® is switched off.Switching on the ESP
®
Press ESP
® switch1.
The ESP
® warning lampv in the in-
strument cluster goes out.
You are now again in normal driving
mode with the ESP
® switched on.
i
When the ESP
® is switched off and one or
more drive wheels are spinning, the ESP
® warn-
ing lamp
v
in the instrument cluster flashes.
However, the ESP
® will then not stabilize the ve-
hicle.
Warning!
G
When the ESP
® warning lampv is illumi-
nated continuously, the ESP
® is switched
off.
Adapt your speed and driving to the prevail-
ing road conditions and to the non-operating
status of the ESP
®.
!
Avoid spinning of a drive wheel for an ex-
tended period with the ESP
® switched off. This
may cause serious damage to the drivetrain
which is not covered by the Mercedes-Benz Lim-
ited Warranty.
81 Control systems
COMAND introduction
Instrument cluster multifunction
display
This section describes features and con-
trols via the COMAND controller, display
and shortcut buttons only.
Please refer to the “Instrument cluster
control system” section of this manual
(page 241) for function descriptions and
operation of the instrument cluster multi-
function display and multifunction steering
wheel buttons as they relate to COMAND
features described in this section.Adjusting COMAND display and instru-
ment cluster illumination
1To adjust instrument cluster illumina-
tion and multifunction display
2To adjust COMAND display
Brightening illumination: Turn
knob1 or2 clockwise.
Dimming illumination: Turn knob1
or2 counterclockwise.Swiveling COMAND display
1Button for swiveling display to the left
2Button for swiveling display to the right
You can swivel the COMAND display to the
left or right. The buttons are on the
right-hand side of the instrument cluster.
i
The layout of the menus may vary depending
on your vehicle’s equipment. This manual shows
the menus for a fully equipped vehicle.
89 Control systems
COMAND introduction
Main menus of COMAND
Sound
Muting: Press the F shortcut but-
ton in the center console (
page 80).
The sound of the current audio source
is switched on or is muted.Switching off navigation announce-
ments entirely
Canceling navigation message:
Briefly press F shortcut button dur-
ing an announcement.
Switching off navigation messages:
Press and hold F during an an-
nouncement until the announcement is
switched off.
You will see the message “The driving
instructions have been muted.” for a
short while.Adjusting volume
1Thumbwheel
Adjusting: Turn, thumbwheel.
The volume of the currently selected
audio source changes.
i
The components and operating principles of
COMAND can be found on (
page 79).
i
When the sound is muted, you will see the
symbol
F
in the status line. When you
change the audio source, the sound is automati-
cally switched on. You will be able to hear an-
nouncements from the navigation system even
when the sound is muted.
i
The announcements remain switched off
even if you start a new route guidance or if
COMAND is switched off/on with theo but-
ton.
If you switch COMAND off by removing the
SmartKey from the starter switch and then
switch the ignition back on after more than
3 minutes, the announcements are automatical-
ly switched back on.
90 Control systemsCOMAND introductionVolume of navigation announcements
You can adjust the volume of the naviga-
tion announcements independently from
the volume of the respective audio source.
During a navigation announcement:
turn thumbwheel,
or
pressæ or ç on the multifunc-
tion steering wheel.
Adjusting volume for telephone calls
In hands-free mode, you can adjust the vol-
ume of a telephone call while the call is
currently active.
During a telephone call:
turn thumbwheel,
or
pressæ or ç on the multifunc-
tion steering wheel.Selecting sound settings
You can select different sound settings for
each individual audio source. The respec-
tive sound menu can be found via the sub-
menu for which you wish to make settings.
Example:
“Audio” “Audio” “FM/AM Radio”
“Sound” Adjusting treble or bass
Select “Sound” “Treble” or “Bass”.
The setting last selected is indicated by
an outlined bar.
Adjusting treble and bass1Setting last selected
2Current setting
Changing setting: Slide rmq or
rotateymz until desired treble or bass
setting is reached.
Exiting menu: Press n, L or
Slideomp.
The setting is saved.
115 Control systems
COMAND telephone*
COMAND telephone*
Safety precautions
General notes
Calls disconnected while the vehicle is
in motion
A call may be disconnected if:
there is insufficient network coverage
you move from one transmitter/receiv-
er area (cell) into another and no chan-
nels are free or the cell is fullOperating options
If the mobile phone is inserted in the cra-
dle, you can use the mobile phone func-
tions with the following devices:
COMAND / telephone keypad
Multifunction steering wheel
Voice Control*
Bluetooth headset
The descriptions in this section assume
that the mobile phone is inserted in the
cradle. Exceptions to this are clearly stat-
ed.
Warning!
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving.
Whether or not prohibited by law, for safety
reasons, the driver should not use the cellu-
lar telephone while the vehicle is in motion.
Stop the vehicle in a safe location before
placing or answering a call.
If you nonetheless choose to use the cellular
phone while driving, please use the hands-
free feature and be sure to pay attention to
the traffic situation at all times. Use the cel-
lular phone only when road, weather and
traffic conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your vehicle is
covering a distance of 44 feet (approxima-
tely 14 m) every second.
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
personal injury.
i
The components and operating principles of
COMAND can be found on (
page 79) and
(
page 87).
i
In order for the functions described in this
section to work correctly, the Bluetooth headset
must be linked to COMAND (
page 217).
Please make sure any Bluetooth headset linked
with the mobile phone is switched off or that the
headset is linked with COMAND before you use
the functions described in this section.
124 Control systemsCOMAND telephone*
Select a number category to add,
e.g. “Home”.
Select a telephone category to add,
e.g. “Land Line”.
Select “Save”.
The search menu for COMAND address
book entries appears.
Search for desired entry.
Press n when you have finished
searching.
COMAND saves the data if there are
fewer than four numbers assigned to
the entry you are searching for in the
selected number category.If four numbers are saved for the entry
you are searching for, a prompt will ap-
pear asking whether you want to over-
write one of the existing numbers.
Select “Yes” or “No”.
If you select “Yes”, a selection list will
appear containing the four existing
numbers.
Select the number to be overwritten.
COMAND overwrites the selected num-
ber with the new data.
Incoming call
Rejecting or accepting the call
Rejecting: Select “Reject”.
or
Press t on the telephone keypad or
on the multifunction steering wheel.
Accepting: Select “Accept”.
or
Press s on the telephone keypad or
on the multifunction steering wheel.
or
Press 0 on the multifunction steer-
ing wheel.
Use the mobile phone (see mobile
phone operating instructions).
or
Use the Bluetooth headset
(see headset operating instructions).
If you have accepted the call using
COMAND, the telephone keypad, the mul-
tifunction steering wheel or the mobile
phone, the call will be conducted via the
hands-free system. The volume of the call
can be adjusted (
page 89).
i
“Save” does not function if the selected list
entry is already saved in the COMAND address
book.
i
There is a detailed description of searching
for an COMAND address book entry in the
“Searching for an address book entry” section
(
page 204).
i
If you have a CDMA/TDMA mobile phone
and reject a call, only the ring tone will stop. The
call itself can only be ended by the caller.
i
The use of a Bluetooth headset requires
Bluetooth to be activated and the Bluetooth
headset to be authorized (
page 217).
128 Control systemsCOMAND telephone*1Back to the call display
2Character entry
3To call up the phone book
Sending individual characters:
Rotateymz or slide omp and select
desired character.
Each character you select can be seen
in the main area and is sent immediate-
ly.
Sending a phone book entry as a
character string: Select “Name”.
Select desired phone book entry.
The entry is immediately sent as a char-
acter string.
Switching back to the call display:
Select “Y”.
Sending character strings via the tele-
phone keypad
Press corresponding button on tele-
phone keypad.
Each character you select is immedi-
ately sent.
Ending an active call
Ending a call: Select “4END” in the
call display.
or
Press t on the telephone keypad or
on the multifunction steering wheel.
Transferring a call
From the hands-free system to the
Bluetooth headset
The call transfer is controlled by pressing
the PTT button on the Bluetooth headset
(see headset operating instructions). Nor-
mally, it is sufficient to press the PTT but-
ton once, but under certain circumstances
you may have to press it a second time.
Once the call has been transferred to the
Bluetooth headset, all the functions will be
available to you which are described in the
“Functions during a single-call connection”
section (
page 127).
Exception: “Switching the hands-free mi-
crophone on or off” function (
page 127).
i
Telephone numbers containing the + char-
acter may impair the function.
i
The + character may impair the function.
i
The use of a Bluetooth headset requires
Bluetooth to be activated and the Bluetooth
headset to be authorized (
page 217).