FCC
.Do not tamper with, alter, or use in
any non-approved way.
Any unauthorized modification to this
device could void the user’s authority to
operate the equipment.
General notes
Blind Spot Assist uses a radar sensor system
to monitor the areas on both sides of your
vehicle. It is active from a speed of approx.
20 mph (30 km/h). A warning display in the
exterior mirrors draws your attention to
vehicles detected in the monitored area. If
you then switch on the corresponding turn
signal to change lane, you will also receive an
optical and audible collision warning. Blind
Spot Assist uses sensors in the rear bumper
for monitoring purposes.
For Blind Spot Assist to assist you when
driving, the radar sensor system must be
activated (Y page 206) and operational.
Monitoring range of the sensors G
WARNING
Blind Spot Assist monitors certain areas in the
immediate vicinity of your vehicle. Vehicles
that approach and drive past at high speeds
are not detected. There is no display and no
warning.
If the lanes are very wide, it may not be
possible to monitor the complete width of the
neighboring lane. For this reason, vehicles in
the next lane may not be detected, especially
if they are driving in a staggered formation.
This may be the case if vehicles are driving at
that edge of their lane which is furthest away
from your vehicle.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognize dangers in time, cause an accident
and injure yourself and others. Blind Spot Assist monitors the area up to
10 ft (3.0m) behind your vehicle and directly
next to your vehicle, as shown in the diagram.
For this purpose, Blind Spot Assist uses radar
sensors in the rear bumper.
If the lanes are narrow, vehicles driving in the
lane beyond the lane next to your vehicle may
be indicated, especially if the vehicles are not
driving in the middle of their lane. This may
be the case if there are vehicles driving at the
inner edge of their lanes.
Due to the nature of the system:
R
warnings may be issued in error when
driving close to crash barriers or similar
solid lane borders.
R the warning is canceled when driving for an
extended period next to long vehicles, such
as trucks.
The two radar sensors for Blind Spot Assist
are integrated into the sides of the rear
bumper. Make sure that the bumper is free
from dirt, ice or slush around the sensors. The
sensors must not be covered, for example by
cycle racks or overhanging loads. Following a
severe impact or in the event of damage to
the bumpers, have the function of the sensors
checked at a qualified specialist workshop.
Blind Spot Assist may otherwise not work
properly. 186
Driving systemsDriving and parking
Indicator and warning display
G
WARNING
Blind Spo tAssist is not active at speeds below
approximately 20 mph (30 km/h). The
indicator lamps in the exterior mirrors are
yellow. Vehicles in the monitoring range are
then not indicated.
Always pay attention to traffic conditions and
your surroundings. Otherwise, you may fail to
recognize dangers in time, cause an accident
and injure yourselfa nd others. 0003
Yellow indicator lamp/red warning lamp
Whe nBlind Spot Assist is activated, indicator
lamp 0003lights up yellow in the exterior
mirrors up to a vehicle speed of 20 mph
(30 km/h). From a speed of 20 mph
(30 km/h) the indicator lamp goes out and
Blind Spot Assist is operational.
If a vehicle is detected in the monitoring range
of Blind Spot Assist fro maspeed of approx.
20 mph (30 km/h), warning lamp 0003lights up
red on the corresponding side. This warning
is always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. If you overtake a vehicle, a
warning will only be given if the difference in
speed is less than 7mph (12 km/h).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event, Blind Spot
Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light. Collision warning
If a vehicle is detected in the monitoring range
of Blind Spot Assist and you switch on the
corresponding turn signal, a double warning
tone sounds. Red warning lamp
0003flashes. If
the turn signal remains on, vehicles detected
are indicated by the flashing of red warning
lamp 0003.There are no further warning tones.
Switching on Blind Spot Assist
X Make sure that the radar sensor system
(Y page 206) and Blind Spot Assist
(Y page 202) are activated in the on-board
computer.
X Turn the SmartKey to position 2in the
ignition lock.
Warning lamps 0003in the exterior mirrors
light up red for approx. 1.5 seconds and
then yellow.
Lane Keeping Assist Important safety notes
G
WARNING
Lane Keeping Assist does not keep your
vehicle in its lane. It is only an aid and may
detect the lane markings on the road
incorrectly or not at all.
The system may be impaired or may not
function if:
R there is poor visibility, e.g. due to
insufficient illumination of the road, or due
to snow, rain, fog or spray.
R there is glare, e.g. from oncoming traffic,
the sun, or reflection from other vehicles.
R the windshield is dirty, fogged up or
covered, for instance by a sticker, in the
vicinity of the camera.
R several or no lane markings for a single lane
are present.
R the lane markings are worn away, dark or
covered up, e.g. by dirt or snow.
R the distance to the vehicle in front is too
small and the lane markings thus cannot be
detected. Driving systems
187Driving and parking
Z
R
the lane markings on the road are unclear,
e.g .near roadworks.
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge.
R the road is narrow and winding.
Lane Keeping Assist cannot detect road and
traffic conditions. It is not a substitute for
attentive driving. You are responsible for the
vehicle's speed, braking in good time, and
steering correctly. Always adapt your driving
style to suit the prevailing road and weather
conditions. Always pay attention to traffic
conditions and your surroundings. Otherwise,
you may fail to recognize dangers in time,
cause an acciden tand injure yoursel fand
others.
General notes Lane Keeping Assist monitors the area in
front of your vehicle with camera
0003, which is
mounted at the top of the windshield .Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally.
If you select km on the on-board computer in
the Display Unit Speed-/Odometer: (Y
page 203) function , Lane Keeping Assist
is active starting at aspeed of 60 km/h. If the
miles display unit is selected, the assistance
range begins at 40 mph.
A warning may be given if a front wheel
passes over a lane marking. It will warn you
by means of intermittent vibration in the
steering wheel for up to 1.5 seconds. Switching on Lane Keeping Assist
X
Switch on Active Lane Keeping Assist using
the on-board computer; to do so, select
Standard or
Adaptive (Y
page 202).
Symbol 0003appears in the multifunction
display.
If your speed exceeds 40 mph (60 km/h)
and lane markings are detected,
symbol 0003is highlighted in green .Lane
Keeping Assist is ready for use.
Standard
If Standard is selected, no warning vibration
occurs if:
R you switch on the tur nsignals .Inthis event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, such as
ABS, BAS or ESP ®
.
Adaptive
If Adaptive is selected, no warning vibration
occurs if:
R you switch on the turn signals. In this event,
the warnings are suppressed for a certain
period of time.
R a driving safety system intervenes, e.g.
ABS, BAS or ESP ®
.
R you accelerate hard, e.g. kickdown.
R you brake hard.
R you steer actively, e.g. swerve to avoid an
obstacle or change lane quickly.
R you cut the corner on a sharp bend.
In order that you are warned only when
necessary and in good time if you cross the
lane marking, the system recognizes certain
conditions and warns you accordingly. 188
Driving systemsDriving and parking
Back button
0007
Press briefly:
R
Back
R Switches off the Voice Control
System; see the separate
operating instructions
R Hides display messages/calls
up the last Trip menu function
used
R Exits the telephone book/redial
memory 0007
Press and hold:
R
Calls up the standard display in
the Trip menu
Multifunction display
Example: multifunctio
ndisplay for automatic
transmission
0003 Transmission position (Y page 146)
0004 Drive program (Y page 146)
0024 Description field
0023 Menu bar
0021 Outside temperature or speed
(Ypage 204)
0022 Time X
To show menu bar 0023:press the 0002
or 0005 button on the steering wheel.
Menu bar 0023disappears afte rafew seconds.
Text field 0024shows the selected menu or
submenu as well as display messages.
i You can set the time using the audio
system or COMAND; see the separate
operating instructions.
Vehicles with manual transmission: the
clock and the outside temperature or speed
are show ninstead of transmission
position 0003and drive program 0004.
The following messages may appear in the
multifunctio ndisplay:
000A Gearshiftrecommendation
(Y page 145)
000800140009 Parking Guidance (Y page 181)
CRUISE Cruise control (Y
page 163)
0002 Adaptive high-beam Assist
(Ypage 111)
0002 ATTENTION ASSIST( Ypage 184)
000E ECO start/stop function
(Ypage 139)
0001 Lane Keeping Assist (Y page 187)
0001 HOLD function (Y page 176)
0001 PRE-SAFE ®
Brake (Y page 65) Menus and submenus
Menu overview
Press the 0002or0005 button on the
steering wheel to call up the menu bar and
select a menu.
Operating the on-board computer
(Y page 194).
Depending on the equipment installed in the
vehicle, you can call up the following menus:
R Trip menu (Y
page 196)
R Navi menu (navigation instructions)
(Y page 197)
R Audio menu (Y
page 199) Menus and submenus
195On-board computer and displays Z
Dialing a number from the phone book
X
Press the 0002or0005 button on the
steering wheel to selec tthe Tel menu.
X Press the 0003,0004or000B button to
switch to the phone book.
X Press the 0003or0004 button to select the
desired name.
or
X To begin rapid scrolling: press and hold
the 0003 or0004 button for longer than
one second.
Rapid scrolling stops when you release the
button or reach the end of the list.
X If only one telephone number is stored
for a name: press the0004or000B button
to start dialing.
or
X If there is more than one number for a
particular name: press the0004or000B
button to display the numbers.
X Press the 0003or0004 button to select the
number you want to dial.
X Press the 0004or000B button to start
dialing.
or
X To exit the telephone book: press the
000C or0007 button.
Redialing The on-board computer saves the last names
or numbers dialed in the redial memory.
X Press the 0002or0005 button on the
steering wheel to select the Tel menu.
X Press the 0004button to switch to the
redial memory.
X Press the 0003or0004 button to select the
desired name or number.
X Press the 0004or000B button to start
dialing.
or
X To exit the redial memory: press the
000C or0007 button. Assistance menu
Introduction In the
DriveAssist menu, you have the
following options:
R Showing the distance display
(Y page 201)
R Activating/deactivating the PRE-SAFE ®
Brake (Y page 202)
R Activating/deactivating ATTENTION
ASSIST (Y page 202)
R Activating/deactivating Blind Spot Assist
(Y page 202)
R Activating/deactivating Lane Keeping
Assist (Y page 202)
Showing the distance display X
Press 0002or0005 on the steering wheel
to select the DriveAssist menu.
X Press the 0003or0004 button to select
Distance Display .
X Press the 000Bbutton.
The DISTRONIC PLUS distance display
appears in the multifunction display
(Y page 173).
If the Sensors Deactivated message
appears, the radar sensor system is
deactivated.
X Switch on the radar sensor system
(Y page 206). Menus and submenus
201On-board computer and displays Z
Activating/deactivating PRE-SAFE
®
Brake PRE-SAFE
®
Brake is only available in vehicles
with DISTRONIC PLUS.
X Press 0002or0005 on the steering wheel
to select the DriveAssist menu.
X Press the 0003or0004 buttonto select
PRE-SAFE Brake .
X Press the 000Bbutton.
The current selection is displayed.
X To activate/deactivate: press the000B
button again.
When PRE-SAFE ®
Brake is activated, the
multifunction display shows the 0001symbol
as long as the HOLD function is not activated
(Y page 176).
Vehicles with Parking Guidance: if
PARKTRONIC is activated and you are driving
at a speed 22under 35 km/h, the 0014Parking
Guidance symbol is shown instead of the
0001 symbol (Y page 181).
If the PRE-SAFE Brake: Sensors Deactivated message appears, the radar
sensor system is deactivated.
X Switch on the radar sensor system
(Y page 206).
For more information on PRE-SAFE ®
Brake,
see (Y page 65).
Activating/deactivating ATTENTION
ASSIST X
Press 0002or0005 on the steering wheel
to select the DriveAssist menu.
X Press the 0003or0004 button to select
Attention Asst. X
Press the 000Bbutton.
The current selection is displayed.
X To activate/deactivate: press the000B
button again.
When ATTENTION ASSIST is activated, the
0002 symbol appears in the multifunction
display when the ignition is on. For further information about ATTENTION
ASSIST, see (Y
page 184).
Activating/deactivating Blind Spot
Assist X
Press 0002or0005 on the steering wheel
to select the DriveAssist menu.
X Press the 0003or0004 button to select
Blind Spot Asst .
X Press the 000Bbutton.
The current selection is displayed.
X To activate/deactivate: press the000B
button again.
If the Blind Spot Assist Deactivated message appears, the radar sensor system is
deactivated.
X
Switch on the radar sensor system
(Y page 206).
For further information about Blind Spot
Assist, see (Y page 185)
Activating/deactivating Lane Keeping
Assist X
Press 0002or0005 on the steering wheel
to select the DriveAssist menu.
X Press the 0003or0004 button to select
Lane Keep. Asst. X
Press the 000Bbutton.
The current selection is displayed.
X Press 000Bto confirm.
X Press 0004or0003 to set Off ,
Standard or
Adaptive .
X Press the 000Bbutton to save the setting.
When Lane Keeping Assist is activated, the
0001 symbol appears in the multifunction
display when the ignition is on.
For further information about Lane Keeping
Assist, see (Y page 187).202
Menus and submenusOn-board computer and displays
Safety systems
Display messages Possible causes/consequences and
0001 Solutions
0016000C
Currently
Unavailable See
Operator's Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE ®
,t he HOLD function and
hill start assist are temporarily unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the 000C,0014and0016 warning lamps light up in
the instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
R Self-diagnosis is not yet complete.
R The on-board voltage may be insufficient.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance, making slight steering
movements at a speed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. 0016000C
Inoperative See
Operator's Manual ABS, ESP
®
, BAS, PRE-SAFE ®
, the HOLD function and hill start
assist are unavailable due to a malfunction.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
The 000D (USA only)/0006 (Canada only),000C,0014and0016
warning lamps in the instrumentc luster also light up.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example. 212
Display messagesOn-board computer and displays
Display messages Possible causes/consequences and
0001 Solutions
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP ®
is no toperational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. 000C
Currently
Unavailable See
Operator's Manual ESP
®
,B AS, PRE-SAFE ®
, the HOLD functio nand hill start assist are
temporarily unavailable.
BAS PLUS and PRE-SAFE ®
Brake may also have failed.
In addition, the 000Cand0014 warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
The self-diagnosis functio nmight not be complete, for example.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
The braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance, making slight steering
movements at a speed above 12 mph (20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. Display messages
213On-board computer and displays Z