The 360° camera will not function or will
function only in a limited manner:
R if the doors are open
R if the exterior mirrors are folded in
R if the boot lid is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the cameras are exposed to very bright
light
R if the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
R if the camera lenses mist up, e.g. when
driving into a heated garage in winter, caus-
ing a rapid change in temperature
R if the camera lenses are dirty or covered.
Observe the notes on cleaning
(Y page 350)
R if the vehicle components in which the
cameras are fitted are damaged. In this
event, have the camera position and setting
checked at a qualified specialist workshop.
Do not use the 360° under such circumstan-
ces. You could otherwise injure others or
damage objects when parking the vehicle.
The guide lines in the COMAND display show
the distances to your vehicle. The distances
only apply to road level.
i The camera in the rear area is protected
from raindrops and dust by means of a flap.
This flap opens when the 360° camera is
activated.
The flap closes again when:
R you have finished the manoeuvring proc-
ess
R you switch off the engine
R you open the boot
See the notes on cleaning (Y page 350).
For technical reasons, the flap may remain
open briefly after the 360° camera has
been deactivated. On vehicles with height-adjustable chassis,
depending on technical conditions, leaving
the standard height can result in:
R inaccuracies in the guide lines
R inaccuracies in the display of generated
images (top view)
Activation conditions The 360° camera image can be displayed if:
R COMAND Online is switched on (see the
separate operating instructions)
R the 360° camera 360° camera function is switched on
i If the 360° camera is activated at speeds
above approximately 30 km/h, a warning
message appears.
The warning message disappears if:
R the vehicle's speed falls below approx-
imately 30 km/h. The 360° camera is
then activated.
R the message is confirmed with the %
button.
Switching the 360° camera on/off
using the button X
To switch on: press button:.
The following appears depending on
whether transmission position Dor Ris
selected: Driving systems
225Driving and parking Z
This view assists you in estimating the dis-
tance to the vehicle behind you.
i This setting can also be selected as an
enlarged front view.
Top view with image from the side cam-
eras :
Symbol for the top view and forward-
facing side camera setting
; Yellow guide line for the vehicle width
including the exterior mirror (right side of vehicle)
= Yellow guide line for the vehicle width
including the exterior mirror (left side of
vehicle)
i You can also select the side camera set-
ting for the rear-facing view.
180° view :
Symbol for the full-screen setting with the
reversing camera image
; Own vehicle
= PARKTRONIC warning displays i
180° view can also be selected as front
view.
Select this view when you are driving out of an
exit and the view of crossing traffic is restric- ted, for example.
Stopping the 360° camera display The 360° camera display is stopped:
R
when you select transmission position P, or
R when you are driving at moderate speeds
The view which was active before the 360°
camera was displayed appears in the
COMAND display. You can also stop the 360° camera display split-screen view by selecting
the % symbol in the display and then con-
firming with the COMAND controller. ATTENTION ASSIST
General notes ATTENTION ASSIST helps you during long,
monotonous journeys such as on motorways and trunk roads. It is active in the 60 km/hto
200 km/h speed range. If ATTENTION ASSIST
detects typical indicators of fatigue or
increasing lapses in concentration on the part of the driver, it suggests taking a break.
Important safety notes ATTENTION ASSIST is only an aid. It may not
always detect fatigue or lapses in concentra-
tion until too late, or may not detect 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:
R if the length of the journey is less than
approximately 30 minutes
R if the road condition is poor, e.g. if the sur-
face is uneven or if there are potholes
R if there is a strong side wind 228
Driving systemsDriving and parking
R
if you have adopted a sporty driving style
with high cornering speeds or high rates of
acceleration
R if you are predominantly driving at a speed
below 60 km/h or above 200 km/h
R if you are driving with the active Steer
Assist of DISTRONIC PLUS
R if the time has been set incorrectly
R in active driving situations, such as when
you change lanes or change your speed
The ATTENTION ASSIST tiredness assess-
ment is deleted and restarted when continu-
ing the journey, 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
Displaying the attention level You can have current status information dis-
played in the assistance menu (Y
page 258)
of the on-board computer.
X Select the assistance graphics display for
ATTENTION ASSIST using the on-board
computer (Y page 257).
The following information is displayed: R the length of the journey since the last
break
R the attention level determined by ATTEN-
TION ASSIST, displayed in a bar display in
five levels from high to low
R if ATTENTION ASSIST is unable to calculate
the attention level and cannot output a warning, the
System passive
System passive message
appears. The bar display then changes the
display, e.g. if you are driving at a speed
below 60 km/h or above 200 km/h.
Activating ATTENTION ASSIST X
Activate ATTENTION ASSIST using the on-
board computer (Y page 261).
The system determines the attention level
of the driver depending on the setting
selected:
Standard selected: the sensitivity with
which the system determines the attention
level is set to normal.
Sensitive selected: the sensitivity is set
higher. The attention level detected by
ATTENTION ASSIST is adapted accordingly
and the driver is warned earlier.
When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction
display in the assistance graphic display.
When ATTENTION ASSIST has been deactiva- ted, it is automatically reactivated after the
engine has been switched off. The sensitivity
selected corresponds to the last selection
activated (standard/sensitive).
Warning in the multifunction display If fatigue or increasing lapses in concentra-
tion are detected, a warning appears in the
multifunction display:
Attention Assist: Attention Assist:
Take a break!
Take a break!
In addition to the message shown in the mul-
tifunction display, you will then hear a warn-
ing tone.
X If necessary, take a break.
X Confirm the message by pressing the a
button on the steering wheel.
On long journeys, take regular breaks in good
time that allow for adequate recuperation. If
you do not take a break and ATTEN-
TION ASSIST continues to detect increasing
lapses in concentration, you will be warned
again after 15 minutes at the earliest. This will Driving systems
229Driving and parking Z
only happen if ATTENTION ASSIST still
detects typical indicators of fatigue or
increasing lapses in concentration.
If a warning is output in the multifunction dis-
play, COMAND Online provides a service sta-
tion search. You can select a service station
and navigation to this service station will then
begin. This function can be activated and
deactivated in COMAND Online. Traffic Sign Assist
General notes Traffic Sign Assist displays the maximum
speed permitted and overtaking restrictions
to the driver in the instrument cluster. Driving
onto a section of road in the wrong direction
triggers a warning. Traffic Sign Assist detects
traffic signs with camera system :attached
behind the top of the windscreen. The data
and general traffic regulations stored in the
navigation system are also used to determine the current speed limit.
If a traffic sign that is relevant to your vehicleis passed, the display of the speed limits and
overtaking restrictions is updated.
The display can also be updated without a
visible traffic sign if:
R the vehicle changes roads (e.g. motorway
exit or slip road)
R a village or town boundary is passed which
is stored in the digital map
R the last traffic sign detected by the camera
has not been repeated If a sign indicating the end of a restriction
(speed limit or overtaking restriction) is
passed, the sign is displayed for five seconds.
The currently applicable traffic regulation
continues to be shown in the assistance
graphic display (Y page 257).
The camera also detects traffic signs with a
restriction indicated by an additional sign
(e.g. in wet conditions).
The traffic signs are only displayed with the
restrictions if:
R the regulation must be observed with the
restriction, or
R Traffic Sign Assist is unable to determine
whether the restriction applies
If Traffic Sign Assist is unable to determine a
maximum permitted speed from any of the
available sources, no speed limit is displayed
in the instrument cluster either. Traffic Sign Assist is not available in all coun-
tries. In this case, display :is shown in the
speedometer.
Important safety notes Traffic Sign Assist is only an aid and is not
always able to correctly display speed limits
and overtaking restrictions. Traffic signs
always have priority over the Traffic Sign
Assist display.230
Driving systemsDriving and parking
The system may be either functionally
impaired or temporarily unavailable if:
R visibility is poor, e.g. due to snow, rain, fog
or spray
R there is glare, e.g. from the sun being low in
the sky
R there is dirt, ice or misting on the wind-
screen in the vicinity of the camera
R traffic signs are hard to detect (dirt, ice,
snow)
R the traffic signs are insufficiently lit at night
R signs are ambiguous (e.g. traffic signs on
construction sites or in adjacent lanes)
R the information in the digital street map of
the navigation system is incorrect or out of
date
Activating Traffic Sign Assist X
Activate the Traffic Sign Assist display
using the on-board computer
(Y page 259).
If you have activated the Traffic Sign Assist
display in the on-board computer, the traffic
regulations (speed limits and overtaking
restrictions) are displayed in the instrument
cluster for five seconds respectively. The
wrong-way warning and the traffic sign dis-
play for speed limits and overtaking restric-
tions remain active even when the display has
been deactivated.
Instrument cluster display Speed limit with overtaking restriction A maximum permitted speed of 60 km/h
(60 mph)
:and an overtaking restriction ;
apply.
Speed limit with unknown restriction :
Maximum permitted speed
; Maximum permitted speed for vehicles
for which the restriction in the additional
sign is relevant
= Additional sign for unknown restriction
A maximum permitted speed of 80 km/h
(80 mph) 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 km/h
(80 mph) applies in wet conditions and when
Traffic Sign Assist has determined that the
restriction must be observed. Driving systems
231Driving and parking Z
End of an overtaking restriction
A maximum permitted speed of 60 km/h
(60 mph) :applies. The overtaking restric-
tion no longer applies ;. The traffic sign for
signalling the end of an overtaking restriction
is displayed for five seconds.
End of a speed limit No speed limit
:applies here.
i The unit for the speed limit (km/h or mph)
depends on the country in which you are
driving. It is generally neither shown on the
traffic sign nor on the instrument cluster
but must be taken into account when
observing the maximum permitted speed. No entry (wrong-way warning) :
Warning message in the instrument clus-
ter (wrong-way warning)
If no entry signs are passed, a warning mes-
sage is displayed in the instrument cluster
should Traffic Sign Assist detect that you are
driving in the wrong direction. You will then
also hear a warning tone. You should imme-
diately check your direction of travel in order to avoid danger to yourself and other road
users. 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 multifunction display. The image
shown in the display corresponds to a road lit
up by main-beam headlamps. This enables
you to see the road's course and any obsta- 232
Driving systemsDriving and parking
Problems with Night View Assist Plus
Problem
Possible causes/consequences and
M
MSolutions The picture quality of
Night View Assist Plus
has deteriorated. The windscreen is misted up on the inside.
X Fold down the camera cover (Y page 351).
X Demist the windscreen (Y page 144). The windscreen is iced up.
X De-ice the windscreen (Y page 144). The windscreen wipers are smearing the windscreen.
X Replace the wiper blades (Y page 134). The windscreen is smeared after the vehicle has been cleaned in a
car wash.
X Clean the windscreen (Y page 348). The windscreen has been damaged by stone impact in the cam-
era's field of vision.
X Replace the windscreen. The pedestrian and ani-
mal recognition is not
available. The infrared camera in the radiator grille is dirty.
X Use a soft cloth and water to clean the infrared camera. Driving Assistance Plus package
General notes The Driving Assistance PLUS package con-
sists of DISTRONIC PLUS (Y
page 194), Active
Blind Spot Assist (Y page 236) and Active
Lane Keeping Assist (Y page 239).
Active Blind Spot Assist General notes
Active Blind Spot Assist monitors the areas
on either side of the vehicle that are not visi-
ble to the driver with two lateral, rear-facing
radar sensors. A warning display in the exte-
rior mirrors draws your attention to vehicles
detected in the monitored area. If you then
switch on the corresponding turn signal to
change lanes, you will also receive a visual
and audible collision warning. If a risk of side impact is detected, corrective braking may
help you avoid a collision. Active Blind Spot
Assist evaluates the free space in the direc-
tion of travel and to the side before making a
course-correcting brake application. For this,Active Blind Spot Assist uses the forward-
facing radar sensors.
Active Blind Spot Assist supports you from a
speed of approximately 30 km/h.
Important safety notes
Active Blind Spot Assist is only an aid and is
not a substitute for attentive driving. 236
Driving systemsDriving and parking
G
WARNING
Active Blind Spot Assist does not react to
vehicles:
R overtaking too closely on the side, placing
them in the blind spot area
R if the difference in the speed of approach
and overtaking is too great
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 pay careful attention to the traffic sit-
uation and maintain a safe distance at the side of the vehicle.
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 trim are free of dirt, ice or slush. The rear sensors must not be covered, e.g. by
bicycle racks or overhanging loads. 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 oth-
erwise no longer function properly.
Monitoring range G
WARNING
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 to the side for other traffic or obstacles. Active Blind Spot Assist monitors the area up
to 3.0 mbehind your vehicle and directly next
to your vehicle, as shown in the diagram.
The detection of vehicles may be impaired in the case of:
R dirt on the sensors or obscured sensors
R poor 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 nar-
row vehicles, such as motorcycles or bicy-
cles, 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 driving in the middle of their lane. This may be
the case if there are vehicles at the edge of
their lane nearest your vehicle.
Due to the nature of the system:
R warnings may be issued in error when driv-
ing close to crash barriers or similar solid
lane borders
R warnings may be interrupted when driving
alongside particularly long vehicles, for
example lorries, for a prolonged time Driving systems
237Driving and parking Z