R
you are driving faster than 6 mph
(10 km/h)
R a wheel spins, ESP ®
intervenes or fails. The
00E5 warning lamp lights up in the
instrument cluster.
A warning tone sounds. The parking symbol
disappears and the multifunction display
shows the Park Assist Canceled
Park Assist Canceled
message.
When Active Parking Assist is canceled, you
must steer and brake again yourself.
If a system malfunction occurs, the vehicle is
braked to a standstill. To drive on, depress the
accelerator again. Rear view camera
General notes Rear view camera
0043is in the trunk lid handle.
Rear view camera 0043is an optical parking and
maneuvering aid. It shows the area behind
your vehicle with guide lines in the COMAND
display.
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
i The text of messages shown in the
COMAND display depends on the language
setting. The following are examples of rear
view camera messages in the COMAND
display. Important safety notes The rear view camera is only an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering and
parking. When maneuvering or parking, make
sure that there are no persons, animals or
objects in the area in which you are
maneuvering.
Under the following circumstances, the rear
view camera will not function, or will function
in a limited manner:
R
if the trunk lid is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the camera is exposed to very bright light
R if the area is lit by fluorescent light or LED
lighting (the display may flicker)
R if there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
R if the camera lens is dirty or obstructed.
Observe the notes on cleaning
(Y page 358)
R if the rear of your vehicle is damaged. In
this event, have the camera position and
setting checked at a qualified specialist
workshop
The field of vision and other functions of the
rear view camera may be restricted due to
additional accessories on the rear of the
vehicle (e.g. license plate holder, bicycle
rack).
i The rear view camera is protected from
raindrops and dust by means of a flap.
When the rear view camera is activated,
this flap opens.
The flap closes again when:
R you have finished the maneuvering
process
R you switch off the engine
Observe the notes on cleaning
(Y page 358). 226
Driving syste
msDriving and parking
Problems with Night View Assist
Problem Possible causes/consequences and
0050
0050Solutions The picture quality of
Night View Assist Plus
has deteriorated. The windshield is fogged up on the inside.
X Fold down camera cover (Y page 359).
X Defrost the windshield (Y page 162). The windshield is iced up.
X
De-ice the windshield (Y page 161). The windshield wipers are smearing the windshield.
X
Replace the wiper blades (Y page 147). The windshield is smeared after the vehicle has been cleaned in a
car wash.
X
Clean the windshield (Y page 357). There is windshield chip damage in the camera's field of vision.
X Replace the windshield. The pedestrian and
animal recognition is
not available. The infrared camera in the radiator grill is dirty.
X
Use a soft cloth and water to clean the infrared camera. Driving Assistance PLUS package
General notes The Active Driving Assistance PLUS package
consists of DISTRONIC PLUS (Y page 201),
Active Blind Spot Assist (Y page 240) and
Active Lane Keeping Assist (Y page 243).
Active Blind Spot Assist General notes
Active Blind Spot Assist uses a radar sensor
system, pointed toward the rear of the
vehicle, to monitor the area to the sides of the
vehicle which the driver is unable to see. 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
warning. If a risk of lateral collision is detected, corrective braking may help you
avoid a collision. Active Blind Spot Assist
evaluates the free space in the direction of
travel and to the side before making a course-
correcting brake application. For this, Active
Blind Spot Assist uses radar sensors which
are pointed in the direction of travel.
Active Blind Spot Assist supports you from a
speed of approximately 20 mph (30 km/h).
Important safety notes
Active Blind Spot Assist is only an aid and is
not a substitute for attentive driving.
G
WARNING
Active Blind Spot Assist does not react to:
R vehicles overtaken too closely on the side,
placing them in the blind spot area
R vehicles which approach with a large speed
differential and overtake your vehicle 240
Driving systemsDriving and parking
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 warnings may be interrupted when driving
alongside particularly long vehicles, e.g.
trucks, for a prolonged time.
Warning display 0043
Warning display
Active Blind Spot Assist is not operational at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp 0043on the
corresponding side lights up red. This warning
is always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake a vehicle,
the warning only occurs if the difference in
speed is less than 7 mph (12 km/h).
If you select the reverse gear, Active Blind
Spot Assist is not operational.
The brightness of the warning lamps is
automatically adapted to the brightness of
the surroundings. When Active Blind Spot Assist is activated,
gray radar waves propagating backwards
appear next to the vehicle in the assistance
display in the multifunction display. Above a
speed of 20 mph (30 km/h), the color of the
radar waves in the assistance display
changes to green 0044. Active Blind Spot Assist
is then ready for use.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes and a vehicle is detected in the side
monitoring range, you receive a visual and
acoustic collision warning. You will then hear
a double warning tone and red warning
lamp 0043flashes. If the turn signal remains on,
detected vehicles are indicated by the
flashing of red warning lamp 0043. There are no
further warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision. G
WARNING
A course-correcting brake application cannot
always prevent a collision. There is a risk of
an accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake
application. Always maintain a safe distance
at the sides. 242
Driving systemsDriving an
d parking
If a course-correcting brake application
occurs, red warning lamp 0043flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display 0044underlining
the danger of a side collision appears in the
multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be
interrupted at any time if you steer slightly in
the opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between
20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs if:
R there are vehicles or obstacles, e.g. crash
barriers, located on both sides of your
vehicle.
R a vehicle approaches you too closely at the
side.
R you have adopted a sporty driving style with
high cornering speeds.
R you clearly brake or accelerate.
R a driving safety system intervenes, e.g.
ESP ®
or PRE-SAFE ®
Brake.
R ESP ®
is switched off.
R a loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist
X Make sure that Active Blind Spot Assist is
activated in the on-board computer
(Y page 261).
X Turn the SmartKey to position 2in the
ignition lock.
Warning lamps 0043in the exterior mirrors
light up red for approximately
1.5 seconds. Gray radar waves propagating
backwards appear next to the vehicle in the
assistance display in the multifunction
display. Active Lane Keeping Assist General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera
system
0043at the top of the windshield.
Various different areas to the front, rear and
side of your vehicle are also monitored with
the aid of the radar sensor system. Active
Lane Keeping Assist detects lane markings on
the road and can warn you before you leave
your lane unintentionally. If you do not react
to the warning, a lane-correcting application
of the brakes can bring the vehicle back into
the original lane.
If you select km kmin the Display Unit
Display Unit
Speed-/Odometer:
Speed-/Odometer: function on the on-board
computer (Y page 262), Active Lane Keeping
Assist is activated starting at a speed of
60 km/h. If the miles milesdisplay unit is selected,
the assistance range begins at 40 mph.
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of
physics. Active Lane Keeping Assist cannot
take account of road and weather conditions.
It may not recognize traffic situations. Active
Lane Keeping Assist is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
Active Lane Keeping Assist cannot
continuously keep your vehicle in its lane. Driving systems
243Driving and parking Z
G
WARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
R give an unnecessary warning and then
make a course-correcting brake application
to the vehicle
R not give a warning or intervene
There is a risk of an accident.
Always pay particular attention to the traffic
situation and keep within the lane, especially
if Active Lane Keeping Assist alerts you.
Terminate the intervention in a non-critical
driving situation.
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 reflections (e.g. when the road
surface is wet)
R the windshield is dirty, fogged up, damaged
or covered, for instance by a sticker, in the
vicinity of the camera
R the radar sensors in the front or rear
bumpers or the radiator trim are dirty, e.g.
obscured by snow
R there are no, several or unclear lane
markings for a lane, e.g. in areas with road
construction work
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
R the lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
R the road is narrow and winding
R there are strong shadows cast on the lane If no vehicle is detected in the adjacent lane
and broken lane markings are detected, no
lane-correcting brake application is made.
Warning vibration in the steering wheel
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.
Lane-correcting brake application
If you leave your lane, under certain
circumstances the vehicle will brake briefly
on one side. This is meant to assist you in
bringing the vehicle back to the original lane.
G
WARNING
A lane-correcting brake application cannot
always bring the vehicle back into the original
lane. There is a risk of an accident.
Always steer, brake or accelerate yourself,
especially if Active Lane Keeping Assist warns
you or makes a lane-correcting brake
application. If a lane-correcting brake application occurs,
display
0043appears in the multifunction
display. The brake application also slightly
reduces vehicle speed.
This function is available in the range between
40 mph and 120 mph (60 km/h and
200 km/h).
A lane-correcting brake application can be
made after driving over a lane marking
recognized as being solid or broken. Before
this, a warning must be given by means of
intermittent vibration in the steering wheel. 244
Driving systemsDriving and parking
In addition, a lane with lane markings on both
sides must be recognized.
In the case of a broken lane marking being
detected, a lane-correcting brake application
can only be made if a vehicle has been
detected in the adjacent lane. Oncoming
vehicles, overtaking vehicles and vehicles in
adjacent lanes can be detected.
i A further lane-correcting brake
application can only occur after your
vehicle has returned to the original lane.
No lane-correcting brake application occurs
if:
R you clearly and actively steer, brake or
accelerate.
R you cut the corner on a sharp bend.
R you have switched on the turn signal.
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R you have adopted a sporty driving style with
high cornering speeds or high rates of
acceleration.
R ESP ®
is switched off.
R the transmission is not in position D.
R a loss of tire pressure or a defective tire has
been detected and displayed.
R an obstacle in the lane in which you are
driving has been detected.
Active Lane Keeping Assist may not detect
other road users or traffic situations. An
inappropriate brake application may be
interrupted at any time if you:
R steer slightly in the opposite direction
R switch on the turn signal
R clearly brake or accelerate
A lane-correcting brake application is
interrupted automatically if:
R a driving safety system intervenes, e.g.
ESP ®
, PRE-SAFE ®
Brake or Active Blind
Spot Assist.
R lane markings can no longer be recognized. Switching on Active Lane Keeping Assist
X
Press button 0044.
Indicator lamp 0043lights up. The Lane Lane
Keeping Assist On
Keeping Assist On message appears in
the multifunction display. If all conditions
have been satisfied, a warning or steering
intervention may be made.
X To switch off: press button0044.
Indicator lamp 0043goes out. The Active
Lane Keeping Assist is deactivated. The
Lane Keeping Assist Off Lane Keeping Assist Off message
appears in the multifunction display.
Selecting Standard or Adaptive setting
X Select the Active Lane Keeping Active Lane Keeping
Assist
Assist function in the Assistance
Assistancemenu
using the on-board computer
(Y page 262).
X Select the Standard StandardorAdaptive
Adaptive setting.
When Standard
Standard 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, such
as ABS, BAS or ESP ®
.
When Adaptive 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. Driving systems
245Driving and parking Z
R
you brake hard.
R you steer actively, e.g. swerve to avoid
an obstacle or change lanes 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.
The warning vibration occurs earlier if:
R you approach the outer lane marking on a
bend.
R the road has very wide lanes, e.g. a
highway.
R the system recognizes solid lane markings.
The warning vibration occurs later if:
R the road has narrow lanes.
R you cut the corner on a bend. 246
Driving syste
msDriving and parking
X
Confirm by pressing 0076on the steering
wheel.
X Press the 0064,0063or0076 button to
switch to the phone book.
X Press the 0064or0063 button to select the
desired name.
or
X To begin rapid scrolling: press and hold
the 0064 or0063 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 the0061or0076 button
to start dialing.
or
X If there is more than one number for a
particular name: press the0061or0076
button to display the numbers.
X Press the 0064or0063 button to select the
number you want to dial.
X Press the 0061or0076 button to start
dialing.
or
X To exit the phone book: press the0076
or 0038 button.
Redialing The on-board computer saves the last names
or numbers dialed in the redial memory.
X Use 00E2 on the steering wheel to call up
the list of menus.
X Press 0064or0063 on the steering wheel
to select the Telephone
Telephone menu.
X Confirm by pressing 0076on the steering
wheel.
X Press the 0061button to switch to the
redial memory.
X Press the 0064or0063 button to select the
desired name or number. X
Press the 0061or0076 button to start
dialing.
or
X To exit the redial memory: press the
0076 or0038 button. Assistance graphic menu
X
Use 00E2 on the steering wheel to call up
the list of menus.
X Press the 0064or0063 button on the
steering wheel to select the Assistance Assistance
Info Display
Info Display menu.
X Confirm by pressing 0076on the steering
wheel.
The multifunction display shows the
DISTRONIC PLUS distance display in the
assistance graphic.
X Press 0064to display the
ATTENTION ASSIST assessment.
The assistance graphic displays the status of
and information from the following driving
systems or driving safety systems:
R ATTENTION ASSIST (Y page 234)
R DISTRONIC PLUS (Y page 207)
R Spotlight function of Night View Assist Plus
(Y page 262)
R Active Lane Keeping Assist (Y page 243)
R Active Blind Spot Assist (Y page 240)
R Distance warning function of COLLISION
PREVENTION ASSIST (Y page 73)
R PRE-SAFE ®
Brake (Y page 78) 258
Menus and submenusOn-board computer and displays