Exiting 360° camera display mode
The 360° camera display is stopped
Rwhen you select transmission positionP, or
Rwhen you are driving at moderate speeds
The view which was active before the 360° cam-
era was displayed appears in the multimedia
system. You can also stop the 360° camera dis-
play split-screen view by selecting the %
symbol in the display and then confirming with
the COMAND controller.
ATTENTION ASSIST
General notes
ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways. It is
active in the 37 mph (60 km/h) to 125 mph
(200 km/h) range. If ATTENTION ASSIST
detects typical indicators of fatigue or increas-
ing lapses in concentration on the part of the
driver, it suggests taking a break.
Important safety notes
ATTENTION ASSIST is only an aid to the driver. It might not always recognize fatigue or increasing
inattentiveness in time or fail to recognize them
at all. The system is not a substitute for a well-
rested and attentive driver.
The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or not
occur at all:
Rif the length of the journey is less than approx-
imately 30 minutes
Rif the road condition is poor, e.g. if the surface
is uneven or if there are potholes
Rif there is a strong side wind
Rif you have adopted a sporty driving style with
high cornering speeds or high rates of accel-
eration
Rif you are predominantly driving slower than
37 mph (60 km/ h)or faster than 125 mph
(200 km/h)
Rif you are driving with the active Steer Assist
of DISTRONIC PLUS
Rif the time has been set incorrectly
Rin active driving situations, such as when you
change lanes or change your speed The ATTENTION ASSIST tiredness assessment
is deleted and restarted when continuing the
journey, if:
Ryou switch off the engine
Ryou take off your seat belt and open the driv-
er's door, e.g. for a change of drivers or to
take a break
Displaying the attention level
You can have current status information dis-
played in the assistance menu (Ypage 269) of
the on-board computer.
XSelect the Assistance display for ATTENTION
ASSIST using the on-board computer
(
Ypage 268).
The following information is displayed:
Rlength of the journey since the last break.
Rthe attention level determined by ATTENTION ASSIST (Attention Level), displayed in a
bar display in five levels from high to low
Rif ATTENTION ASSIST is unable to calculate
the attention level and cannot issue a warn-
ing, the System Suspended
message
appears. The bar display then changes the
display, e.g. if you are driving at a speed below
37 mph (60 km/h) or above 124 mph
(200 km/h).
Activating ATTENTION ASSIST
XActivate ATTENTION ASSIST using the on-
board computer (Ypage 271).
The system determines the attention level of
the driver depending on the setting selected:
If Standard
is selected: the sensitivity with
which the system determines the attention level
is set to normal.
If Sensitive
is selected: the sensitivity is set
higher. The attention level detected by Attention
228Driving systems
Driving and parking
and the traffic sign display for speed limits and
overtaking restrictions remain active even when
the display has been deactivated.
Instrument cluster display
Displaying the assistance graphic
XCall up the assistance graphics display func-
tion using the on-board computer
(
Ypage 268).
XSelect the Traffic Sign Assist display.
Detected traffic signs are displayed in the
instrument cluster.
Speed limit with unknown restriction
:Maximum permitted speed
;Maximum permitted speed for vehicles for
which the restriction in the additional sign isrelevant
=Additional sign for unknown restriction
A maximum permitted speed of 80 mph
(80 km/h) and a speed limit of 60 km/h
(60 mph) with an unknown restriction apply.
Speed limits in wet conditions
:Maximum permitted speed
;Additional signs for wet conditions A maximum permitted speed of 80 mph
(80 km/h) applies in wet conditions and if Traffic
Sign Assist has determined that the restriction
must be observed.
Canceling the speed limit
The speed limit no longer applies
:.
iThe unit for the speed limit (km/h or mph)
depends on the country in which you are driv-
ing. It is generally neither shown on the traffic
sign nor on the instrument cluster but must be
taken into account when observing the max-
imum permitted speed.
Night View Assist Plus
General notes
In addition to the illumination provided by the
normal headlamps, Night View Assist Plus uses
infrared light to illuminate the road. Night View
Assist Plus camera ;picks up the infrared light
and displays a monochrome image in the multi-
function display. The image shown in the display
corresponds to a road lit up by high-beam head-
lamps. This enables you to see the road's course
and any obstacles in good time. When pedes-
trian recognition is active, pedestrians recog-
230Driving systems
Driving and parking
nized by the system are visually highlighted in
color in the Night View Assist Plus display with
small frame corners.
In addition, an infrared camera is integrated into
the radiator trim:. The camera helps detect
pedestrians and animals. Observe the notes on
cleaning the infrared camera (
Ypage 364).
iInfrared light is not visible to the human eye
and therefore does not glare. Night View
Assist Plus can therefore remain switched on
even if there is oncoming traffic.
Important safety notes
Night View Assist Plus is only an aid and is not a
substitute for attentive driving. Do not rely on
the Night View Assist Plus display. You are
responsible for the distance to the vehicle in
front, for vehicle speed and for braking in good
time. Drive carefully and always adapt your driv-
ing style to suit the prevailing road and traffic
conditions.
The system may be impaired or may not function
if:
Rthere is poor visibility, e.g. due to snow, rain,
fog or spray
Rthe windshield is dirty, fogged up or covered,
for instance by a sticker, in the vicinity of the
camera
Rthe infrared camera in the radiator trim is
dirty, fogged up or obscured
Ron bends, hilltops or downhill gradients
Rat high outside temperatures
Night View Assist Plus cannot display objects
directly in front of or beside the vehicle.
It is possible that, in addition to people and ani-
mals, other objects are also marked or highligh-
ted .
Pedestrian and animal recognition
General notes
Pedestrian or animal recognition may be
impaired or inoperative if:
Rpedestrians or animals are partially or entirely
obscured by other objects, e.g. parked vehi-
cles
Rthe silhouette of the pedestrian or of the ani-
mal in the Night View Assist Plus display is
incomplete or interrupted, e.g. by powerful
light reflections
Rpedestrians or animals do not contrast with
the surroundings
Rthe camera system no longer recognizes
pedestrians as persons due to special cloth-
ing or other objects
Rpedestrians are not in an upright position, e.g.
sitting, squatting or lying
Ranimals are not recognized by the system,
e.g. because of their size or shape
Pedestrian and animal recognition is deactiva-
ted at temperatures above 90 ‡ (32 †). The
spotlight function and automatic delayed
switch-off are then no longer active.
Pedestrian recognition
:Night View Assist Plus display
;Readiness symbol for active pedestrian rec- ognition
=Highlighting
?Pedestrian recognized
Night View Assist Plus can recognize pedes-
trians using typical characteristics, e.g. the body
contours and posture of a person standing
upright.
Pedestrian recognition is then switched on auto- matically if:
RNight View Assist Plus is activated.
Ryou are driving faster than approximately
6 mph (10 km/h).
Rit is dark.
If pedestrian recognition is active, readiness
symbol ;appears. Persons who are detected
are highlighted by framing =. If the pedestrian
recognition system has brought a pedestrian to
your attention, look through the windshield to
evaluate the situation. The actual distance to
objects and pedestrians cannot be gaged accu-
rately by looking at a screen.
Driving systems231
Driving an d parking
Z
Animal recognition
Animals can be recognizedin th efollowin gsit -
uations:
Rdarkness
Routside built-up areas
Rbelow an ambient temperature of 90 ‡
(32 †).
Nigh tView Assist Plus can recognize larger ani-
mals suc has deer ,cows or horses usin gtypical
characteristics.
The system does no tdetect :
Rsmaller animals, e.g. dogs and cat s
Ranimals whosesilhouette is no tclearly rec -
ognizable
When detected, animals are marke dwit hsmal l
color frame corners .In contrast to pedestrian
recognition ,there is no separate readiness sym-
bol in th emultifunction display.
Activating/deactivating Night View
Assist Plus
Activation conditions
You can only activat eNigh tView Assist Plus if all
of th efollowin gcondition sare met :
Rtheignition is switched on (Ypage 162) or the
engin ehas been started.
Rth eligh tswitch is in th eà orL posi-
tion.
Rrevers egear has no tbeen engaged .
Activating Night View Assist Plus
XPress button:.
The Nigh tView Assist Plus display appear sin
th emultifunction display.
iThe infrared headlamps only switch on in th e
dark from speeds of approximately 6mph
(10 km/h). This mean sthat you do no thave th
efull visual range while th evehicl eis sta-
tionar yand canno tcheck whether Nigh tView
Assist Plus is working .The infrared head-
lamps are deactivate dat speeds below 3mph
(5 km/h). The Nigh tView imag econtinue sto
be displayed until you deactivate it by press-
ing butto n:.
Automatic activation
You can select th eNightVie wAssistAuto‐matic Activatio noption via theNigh tView
Assist menu. The pedestrian and animal search function remains active eve nwhen th eNigh t
View imag eis no tdisplayed. In th edark ,in unli t
surroundings and at speeds of mor ethan
60 km/h, th eNigh tView imag eis automatically
displayed in th emultifunction display as soo nas
pedestrian sor animals are detected.
XIn th eassistanc emenu, select automatic acti-
vation of Nigh tView Assist Plus
(
Ypage 270).
Deactivating Night View Assist Plus
XPress butto n:.
The Nigh tView Assist Plus display disappear s
from th emultifunction display. Nigh tView
Assist is deactivated.
Spotlight function
General notes
Under certai nconditions, th espotligh tfunction
uses th eheadlamps to flas hat detected pedes-
trians .
The spotligh tfunction is only active if:
Rpedestrian recognition is active
Rth eroad surface is no tlit
Rth edriving spee dis at least 40 mph
(60 km/ h)
Rthe "Adaptive Highbeam Assist PLUS" func-
tion is activated (Ypage 133)
The spotlight function is not active or is active
only to a limited extent if:
Ryou are driving in city traffic
Rthere are pedestrians located in the area of an
oncoming vehicle or a vehicle in front
Activating the spotlight function
The pedestrian detection with spotlight function is running the background. If the prerequisites
are met, the spotlight function uses the head-
232Driving system s
Driving an d parking
Problems with Night View Assist Plus
ProblemPossible causes/consequences andMSolutions
The picture quality of
Night View Assist Plus
has deteriorated.The windshield is fogged up on the inside.
XFold down camera cover (Ypage 364).
XDefrost the windshield (Ypage 151).
The windshield is iced up.
XDe-ice the windshield (Ypage 151).
The windshield wipers are smearing the windshield.
XReplace the wiper blades (Ypage 136).
The windshield is smeared after the vehicle has been cleaned in a car
wash.
XClean the windshield (Ypage 362).
There is windshield chip damage in the camera's field of vision.
XReplace the windshield.
The pedestrian and ani-
mal recognition is not
available.the infrared camera in the radiator trim is dirty
XUse a soft cloth and water to clean the infrared camera.
Driving Assistance PLUS package
General notes
The Driving Assistance PLUS package consists
of DISTRONIC PLUS (Ypage 199), Active Blind
Spot Assist (Ypage 234) and Active Lane Keep-
ing Assist (Ypage 237).
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 dis-
play in the exterior mirrors draws your attention
to vehicles detected in the monitored area. If
you then switch on the corresponding turn sig-
nal to change lane, you will also receive an opti-
cal and audible warning. If a risk of lateral colli-
sion is detected, corrective braking may help
you avoid a collision. Before a course-correcting
brake application, Active Blind Spot Assist eval-
uates the space in the direction of travel and at
the sides of the vehicle. For this, Active Blind Spot Assist uses the forward-facing radar sen-
sors.
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.
GWARNING
Active Blind Spot Assist does not react to:
Rvehicles overtaken too closely on the side,
placing them in the blind spot area
Rvehicles which approach with a large speed
differential and overtake your vehicle
As a result, Active Blind Spot Assist may nei-
ther give warnings nor intervene in such sit-
uations. There is a risk of an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
iUSA only: This device has been approved by
the FCC as a "Vehicular Radar System". The
radar sensor is intended for use in an auto-
motive radar system only. Removal, tamper-
234Driving systems
Driving and parking
ing, or altering of the device will void any war-
ranties, and is not permitted by the 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.
iCanada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause harmful inter-
ference, and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties, and is not permitted.
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.
Radar sensors
The Active Blind Spot Assist radar sensors are
integrated into the front and rear bumpers and
behind a cover in the radiator trim. Make sure
that the bumpers and the cover in the radiator
grill are free of dirt, ice or slush. The rear sensorsmust not be covered, for example by cycle racks
or overhanging cargo. Following a severe impact or in the event of damage to the bumpers, have
the function of the radar sensors checked at a
qualified specialist workshop. Active Blind Spot
Assist may otherwise no longer work properly.
Monitoring area
GWARNING
Active Blind Spot Assist does not detect all
traffic situations and road users. There is a
risk of an accident.
Always make sure that there is sufficient dis-
tance on the side for other traffic or obstacles.
Active Blind Spot Assist monitors the area up to
10 ft (3.0 m) behind your vehicle and directly
next to your vehicle, as shown in the diagram.
The detection of obstacles can be impaired in
the case of:
Rthere is dirt on the sensors or anything else
covering the sensors
Rpoor visibility, e.g. due to rain, snow or spray
Vehicles in the monitoring range are then not
indicated.
Active Blind Spot Assist may not detect narrow
vehicles, such as motorcycles or bicycles, or
may only detect them too late.
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 driv-
ing in the middle of their lane. This may be the
case if there are vehicles at the inner edge of
your lane.
Due to the nature of the system:
Rwarnings may be issued in error when driving
close to crash barriers or similar solid lane
borders.
Rwarnings may be interrupted when driving
alongside particularly long vehicles, e.g.
trucks, for a prolonged time.
Driving systems235
Driving and parking
Z
Warning display
: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 :on the correspond-
ing 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 auto-
matically adapted to the brightness of the sur-
roundings.
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 ;.
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
:flashes. If the turn
signal remains on, detected vehicles are indica-
ted by the flashing of red warning lamp :.
There are no further warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a lat-
eral collision in the monitoring range, a course-
correcting brake application is carried out. This
is meant to assist you in avoiding a collision.
GWARNING
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 appli-
cation. Always maintain a safe distance at the
sides.
If a course-correcting brake application occurs,
red warning lamp :flashes in the exterior mir-
ror and a dual warning tone sounds. In addition,
display ;underlining the danger of a side col-
lision appears in the multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-cor-
recting brake application may be interrupted at
any time by countersteering slightly or acceler-
ating.
The course-correcting brake application is avail-
able in the speed range between 20 mph
(30 km/h) and 120 mph (200 km/h).
236Driving systems
Driving and parking
Either no braking application, or a course-cor-
recting brake application adapted to the driving
situation occurs if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehicle.
Ra vehicle approaches you too closely at the
side.
Ryou have adopted a sporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Ra driving safety system intervenes, e.g. ESP®
or PRE-SAFE®Brake.
RESP®is switched off.
Ra loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist
XMake sure that Active Blind Spot Assist is
activated in the on-board computer
(
Ypage 271).
XTurn the SmartKey to position2in the ignition
lock.
Warning lamps :in the exterior mirrors light
up red for approximately 1.5 second s. 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 multifunction
camera :at 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 unin- tentionally. If you do not react to the warning, a
lane-correcting application of the brakes can
bring the vehicle back into the original lane.
This function is available in a speed range
between 40 mph and 120 mph (60 km/h and
200 km/h).
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 recog-
nize 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.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
In such cases, Active Lane Keeping Assist
can:
Rgive an unnecessary warning and then
make a course-correcting brake application
to the vehicle
Rnot 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. Ter-
minate the intervention in a non-critical driv-
ing situation.
The system may be impaired or may not function
if:
Rthere is poor visibility, e.g. due to insufficient
illumination of the road, or due to snow, rain,
fog or spray
Rthere is glare, e.g. from oncoming traffic, the
sun or reflections (e.g. when the road surface
is wet)
Rthe windshield is dirty, fogged up, damaged or
covered, for instance by a sticker, in the vicin-
ity of the camera
Driving systems237
Driving and parking
Z