
between 50 mph (80 km/h) and 112 mph
(180 km/h).
If ATTENTION ASSIST detects fatigue or
increasing lapses in concentration on the part
of the driver, it suggests taking a break.GWarning!
The ATTENTION ASSIST is only an aid to the
driver. It might not recognize fatigue or
increasing inattentiveness in time or fail to
recognize them at all. The system cannot
substitute a rested and attentive driver.
Fatigue can cause you to recognize dangers
too late, to misjudge potential dangers, or to
react slower. Therefore, make sure to be
rested before and during your trip. Take rests
early enough and regularly, especially during
long trips. Failure to do so could cause you to
recognize dangers too late which could result
in an accident and serious injury to you and/
or others.
ATTENTION ASSIST assesses your level of
fatigue or lapses in concentration by taking
the following criteria into account:
R your personal driving style, e.g. steering
characteristics
R journey details, e.g. time of day and length
of journey
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
R if the road condition is poor, e.g. if the
surface is uneven or if there are potholes
R if there is a strong side wind
R if you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
R if you predominantly drive at speeds under
50 mph (80 km/h) or over 112 mph
(180 km/h)
R if you are currently using COMAND or
making a telephone call with it
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
Warning and display messages in the
multifunction displayXActivate ATTENTION ASSIST using the on-
board computer ( Y page 207).
Symbol  : appears in the multifunction
display.
If ATTENTION ASSIST is active, it will not warn
you until at least 20 minutes after your
journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Time for a rest?
message appears in the multifunction
display.
XIf necessary, take a break.XPress  a to confirm the message.
On long journeys, take regular breaks in good
time to allow yourself to rest properly. If you
do not take a break and ATTENTION ASSIST
still detects fatigue or increasing lapses in
concentration, you will be warned again after
15 minutes at the earliest.
ATTENTION ASSIST is reset when you
continue your journey; it reassesses your
tiredness if:
R you switch off the engine.
R you take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break.
Blind Spot Assist
Important safety notes
Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It is active at speeds above
approximately 20 mph (30 km/h). A warning
display in the exterior mirrors draws your
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A=;
Calls up the menu and menu bar9: Press briefly:
Selects the submenu or scrolls
through lists
In the  Audio menu: selects a stored
station, an audio track or a video
scene
In the  Tel (telephone) menu:
switches to the phone book and
selects a name or telephone number9: Press and hold:
In the  Audio menu: selects the
previous/next station or selects an
audio track or a video scene using
rapid scrolling
In the  Tel (telephone) menu: starts
rapid scrolling through the phone
booka
Confirms selections and hides
display messages
In the  Tel (telephone) menu:
switches to the phone book and
starts dialing
Multifunction display
To activate the multifunction display:
R switch on the ignition. 
R switch on the lights.
R open the driver's door.
Values and settings as well as display
messages are shown in the multifunction
display.
:Description field;Menu bar=Status indicatorXTo show menu bar  ;: press the  =
or  ;  button on the steering wheel.200Displays and operationOn-board computer and displays
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Menus and submenus
Menu overview
The number of menus shown depends on the optional equipment in the vehicle. 
Function:Trip  menu ( Y page 202);Navi  menu (navigation instructions) ( Y page 203)=Audio  menu ( Y page 204)?Tel  menu (telephone) ( Y page 205)ADriveAssist  menu (assistance) ( Y page 206)BServ.  menu ( Y page 208)
R call up display messages ( Y page 213)
R tire pressure loss warning system (Canada only) ( Y page 309)
R tire pressure monitor (USA only) ( Y page 311)
R ASSYST PLUS service interval display ( Y page 277)CSettings  menu (Y page 208)Menus and submenus201On-board computer and displaysBA 207 USA, CA Edition B 2011; 1; 3, en-USd2sboikeVersion: 3.0.3.62010-05-20T10:38:09+02:00 - Seite 201Z  

Audio player or audio media operation
Audio data from various audio devices or
media can be played, depending on the
equipment installed in the vehicle. 
XSwitch on COMAND and select the audio
player or medium (see the separate
operating instructions).XPress the  = or ;  button on the
steering wheel to select the  Audio menu.
CD player display (example)
:Current trackXTo select the next/previous track:
briefly press the  9 or :  button.XTo select a track from the track list 
(rapid scrolling):  press and hold the
9  or :  button until the desired track
has been reached.
If you press and hold  9 or : , the rapid
scrolling speed is increased. Not all audio
players or media support this function.
If track information is stored on the audio
player or medium, the multifunction display
will show the number and name of the track.
The current track does not appear in audio
AUX mode ( Auxiliary audio mode: external
audio source connected).
Video DVD operation
XSwitch on COMAND APS and select video
DVD (see the separate operating
instructions).XPress the  = or ;  button on the
steering wheel to select the  Audio menu.:Current sceneXTo select the next or previous scene:
briefly press the  9 or the  : button.XTo select a scene from the scene list 
(rapid scrolling):  press and hold the
9  or :  button until the desired
scene has been reached.
Telephone menu
Introduction
You can establish a Bluetooth ®
 wireless
connection to COMAND APS (see the
separate operating instructions). 
GWarning
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
recommend that you pull over to a safe
location and stop before placing or taking a
telephone call. If you choose to use the
telephone while driving, please use the hands-
free device and only use the telephone when
weather, road and traffic conditions permit.
Some jurisdictions prohibit the driver from
using a mobile phone 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
14 m) every second.
XSwitch on the mobile phone and COMAND
APS (see the separate operating
instructions).XPress the  = or ;  button on the
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You will see one of the following display
messages in the multifunction display:
R Telephone Ready  or the name of the
network provider: the mobile phone has
found a network and is ready to receive.
R No Service : No network is available.
Accepting a call
If someone calls you when you are in the
Tel  menu, a display message appears in the
multifunction display, for example:
XPress  6 on the steering wheel to accept
an incoming call.
You can accept a call even if you are not in
the  Tel menu.
Rejecting or ending a call
XPress the  ~ button on the steering
wheel.
You can end or reject a call even if you are not
in the  Tel menu.
Dialing a number from the phone book
If your mobile phone is able to receive calls,
you can search for and dial a number from the
phone book in COMAND at any time.
XCopy the telephone book of the mobile
phone to COMAND (see the separate
operating instructions).XPress the  = or ;  button on the
steering wheel to select the  Tel menu.XPress the  9, :  or a  button to call
up the phone book.XPress  9 or :  to select the name you
are searching for.
To start scrolling rapidly, press and hold the
9  or :  button for longer than one
second. After a short time, the rapid scroll
speeds up.
Rapid scrolling stops when you release the
button or reach the end of the list.XIf only one telephone number is stored 
for a name:  press the 6 or a  button
to start dialing.
or
XIf there is more than one number for a 
particular name:  press the 6 or a
button to display the numbers.XPress the  9 or :  button to select the
number you want to dial.XPress the  6 or a  button to start
dialing.
or
XIf you do not want to make a call:  press
the  ~  button.
Redialing
The on-board computer saves the last names
or numbers dialed in the redial memory.
XPress the  = or ;  button on the
steering wheel to select the  Tel menu.XPress the  6 button to switch to the
redial memory.XPress the  9 or :  button to select the
desired name or number.XPress the  6 or a  button to start
dialing.
Assistance menu
Showing the distance display
This function is only available with
DISTRONIC PLUS.
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Display messagesPossible causes/consequences and M SolutionsMGRisk of accident
The hood is open. 
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.XEngage the parking brake.XClose the hood.CAt least one door is open. XClose all doors._
Rear Lt. Backrest 
Not Latched
or
Rear Rt. Backrest 
Not LatchedGRisk of injury
The backrest in the rear is not engaged on the left-hand and/or
right-hand side.
XPush the backrest back until it engages._
Lock Seat Backrest 
Front Left
or
Lock Seat Backrest 
Front RightThe seat backrest is not engaged. A warning tone also sounds.XPush the backrest back until it engages.J
Trunk Partition 
OpenThe trunk partition is open. XClose the trunk partition ( Y page 96).D
Power Steering 
Malfunction See 
Operator's ManualGRisk of accident
The power steering assistance is faulty. You will need to use more
force to steer. 
A warning tone also sounds.
XCheck whether you are able to apply the extra force required.XIf you are able to steer safely:  carefully drive on to a qualified
specialist workshop.XIf you are unable to steer safely:  do not drive on. Contact the
nearest qualified specialist workshop. No ServiceYour vehicle is outside the network provider transmitter/receiver
range. XWait until the mobile phone operational readiness symbol
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XTo open: pull cover ; out by its top edge.XTo remove the insert: press release 
button = and lift the insert up and out.
XTo re-insert the insert: replace insert :
from above.
XPress insert : into the holder until it
engages.
Cigarette lighter
GWarning
When leaving the vehicle, always remove the
SmartKey from the ignition lock. Always take
the SmartKey with you and lock the vehicle.
Do not leave children unattended in the
vehicle, even if they are secured in a child
restraint system, or with access to an
unlocked vehicle. A child's unsupervised
access to a vehicle could result in an accident
and/or serious personal injury. The children
could:
Rinjure themselves on parts of the vehicle
Rbe seriously or fatally injured through
excessive exposure to extreme heat or cold
Rinjure themselves or cause an accident with
vehicle equipment that can be operated
even if the SmartKey is removed from the
ignition lock or removed from the vehicle,
such as seat adjustment, steering wheel
adjustment, or the memory function
If children open a door, they could injure other
persons or get out of the vehicle and injure
themselves or be injured by following traffic.
Do not expose the child restraint system to
direct sunlight. The child restraint system's
metal parts, for example, could become very
hot, and the child could be burned on these
parts.
GWarning
Never touch the heating element or sides of
the lighter; they are extremely hot. Hold the
knob only.
Make sure any children traveling with you do
not injure themselves or start a fire with the
hot cigarette lighter.
Center console, front
XTurn the key to position 2 in the ignition
lock.
XSlide cover : forwards until it engages.XPress in cigarette lighter ;.
Cigarette lighter ; will pop out
automatically when the heating element is
red-hot.
12 V sockets
Points to observe before use
! If you are using all sockets in the vehicle,
make sure that you do not exceed the
maximum current draw of 55 A. Otherwise,
you will overload the fuses.
The socket can be used for accessories with
a maximum power consumption of 180 W,
e.g. lamps or chargers for mobile phones.
If you use the socket for long periods when
the engine is switched off, the battery may
discharge.
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Dashboard socketXOpen the glove box (Y page 250).XLift up the cover of socket :.
An additional socket is installed in the center
console on vehicles without an ashtray with
cigarette lighter.
XTo open: slide cover : forwards until it
engages.
XLift up the cover of socket ;.XTo close: press cover : briefly at the
front.
The cover moves back.
Socket in the rear compartment
A socket is installed in the center console in
the rear compartment in vehicles with an
ashtray and a cigarette lighter.
XPull cover ; out by its top edge.XLift up the cover of socket :.
mbrace20
Important safety notes
! A license agreement must exist in order
to activate the mbrace service. Make sure
that your system is activated and ready for
use, and press the ï MB info call button
to register. If you cannot carry out any of
the steps mentioned, the system may not
be activated.
If you have any questions concerning
activation, please contact one of the
following service hotlines:
RUSA: Response Center under
866-990-9007
RCanada: Customer Service under
1-888-923-8367
Shortly after successfully registering with the
mbrace service, a user ID and password will
be sent to you by post. You can use this
password to log in to the mbrace section
under "Owners Online" at http://
www.mbusa.com21.
The mbrace system is available if:
Rit has been activated and is operational.
Activation requires an available cellular
phone network, a valid SIM card and a
20The system is called TELEAID in Canada.21USA only.
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