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Activating/deactivating the rear view
camera
XTo activate:makesur ethat th eSmartKey
is in position 2in th eignition lock.
XMak esur ethat th e"Show rear vie wcamera
display" function is selected in COMAND
(
Ypage 319).
XEngage revers egear .
The area behind th evehicl eis shown in th e
COMAND display wit hguide lines.
To deacti vate:therear vie wcamera deacti -
vates if you shif tth etransmission to Por after
driving forwards ashort distance.
Displays in the COMAND display
The rear vie wcamera may sho w adistorted
vie wof obstacles, sho wthem incorrectl yor
no tat all. The rear vie wcamera does no tsho w
objects in th efollowin gpositions:
Rver yclose to th erear bumper
Runder th erear bumper
Rin th earea immediately abov eth etailgat e
handle
!Objects no tat ground level may appear to
be further away than they actually are, e.g. :
Rthebumper of aparked vehicl e
Rthedrawbar of atrailer
Rth eball couplin gof atrailer to whitch
Rtherear section of an HGV
Raslante dpos t
Use th eguidelines only for orientation .
Approach objects no further than th ebot -
tom-mos tguideline.
:Whit eguide lin ewithout turnin gth e steer -
ing wheel, vehicl ewidt hincludin gth e
exterio rmirror s (static)
;Yellowguide lin eat adistanc eof approx -
imately 13 ft (4.0m) from the rear of the
vehicle
=Red guide line for the vehicle width includ-
ing the exterior mirrors, for current steer-
ing wheel angle (dynamic)
?Yellow lane marking tires at current steer-
ing wheel angle (dynamic)
AYellow guide line at a distance of approx-
imately 3 ft (1.0 m) fromthe rear of the
vehicle
BVehicle center axle (marker assistance)
CBumper
DRed guide line at a distance of approx-
imately 10 in (0.25 m) fromthe rear of the
vehicle
The guide lines are shown when the trans-
mission is in position R.
The distance specifications only apply to
objects that are at ground level.
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Additional messages for vehicles with
PARKTRONIC
:
Front warning display
;Additional PARKTRONIC measurement
operational readiness indicator
=Rear warning display
Vehicles with PARKTRONIC: if
PARKTRONIC is operational (
Ypage 200), an
additional operational readiness indicator will
appear in COMAND display ;. If the
PARKTRONIC warning displays are active or
light up, warning displays :and =are also
active or light up correspondingly in the
COMAND display.
"Reverse parking" function
Backing up straight into a parking space
without turning the steering wheel
:White guide line without turning the steer-
ing wheel, vehicle width including the
exterior mirrors (static)
;Red guide line for the vehicle width includ-
ing the exterior mirrors, for current steer-
ing wheel angle (dynamic)
=Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) fromthe rear of the
vehicle
?Red guide line at a distance of approx-
imately 10 in (0.25 m) fromthe rear of the
vehicle
XMake sure that the rear view camera is
switched on (
Ypage 207).
The lane and the guide lines are shown.
XWith the help of white guide line :, check
whether the vehicle will fit into the parking
space.
XUsing white guide line :as a guide, care-
fully back up until you reach the end posi-
tion.
Red guide line ?is then at the end of the
parking space. The vehicle is almost paral-
lel in the parking space.
Reverse perpendicular parking with the
steering wheel at an angle
Turning the steering wheel
:
Red guide line for the vehicle width includ-
ing the exterior mirrors, for current steer-
ing wheel angle (dynamic)
;Parking space marking
XMake sure that the rear view camera is
switched on (
Ypage 207).
The lane and the guide lines are shown.
XDrive past the parking space and bring the vehicle to a standstill.
XWhile the vehicle is at a standstill, turn the
steering wheel in the direction of the park-
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ing space until red guide line:reaches
parking space marking ;.
XKeep the steering wheel in that position
and back up carefully.
Backing up with the steering wheel turned
:
Red guide line for the vehicle width includ-
ing the exterior mirrors, for current steer-
ing wheel angle (dynamic)
XStop the vehicle when it is almost exactly in
front of the parking space.
The white lane should be as close to parallel
with the parking space marking as possi-
ble.
Driving to the final position
:
White guide line at current steering wheel
angle
;Parking space marking
XTurn the steering wheel to the center posi-
tion while the vehicle is stationary.
:End of parking space
;White guide line without turning the steer-
ing wheel
=Red guide line at a distance of approx-
imately 10 in (0.25 m) from the rear of the
vehicle
XBack up carefully until you have reached
the final position.
Red guide line =is then at end of parking
space :. The vehicle is almost parallel in
the parking space.
ATTENTION ASSIST
Important safety notes
ATTENTION ASSIST helps you during long,
monotonous journeys, such as on highways.
It is active in the range between 50 mph
(80 km/h) and 112 mph (180 km/h).
If ATTENTION ASSIST detects typical indica-
tors of fatigue or increasing lapses in con-
centration on the part of the driver, it sug-
gests you take a break.
ATTENTION ASSIST assesses your level of
fatigue or lapses in concentration by taking
the following criteria into account:
Ryour personal driving style, e.g. steering
characteristics
Rjourney details, e.g. time of day and length
of journey
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The functionality of ATTENTION ASSIST is
restricted and warnings may be delayed or
not occur at all:
Rif the road condition is poor, e.g. if the sur-face 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
acceleration
Rif you are predominantly driving slower
than 50 mph (80 km/h) or faster than
112 mph (180 km/h)
Rif you are currently using COMAND or mak-
ing a telephone call with it
Rif the time has been set incorrectly
Rin active driving situations, such as when
you change lanes or change your speed
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.
Warning and display messages in the
multifunction display
XActivate ATTENTION ASSIST using the on-
board computer (
Ypage 231).
If ATTENTION ASSIST is active, you will be
warned no sooner than 20 minutes after
your journey has begun. You then hear an
intermittent warning tone twice and the
Attention Assist: Take a Break!
message appears in the multifunction dis-
play.
XIf necessary, take a break.
XPress the aor% button 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 increasing lapses in concentra-
tion, you will be warned again after
15 minutes at the earliest. ATTENTION ASSIST is reset when you con-
tinue your journey and starts assessing your
tiredness again if:
Ryou switch off the engine.
Ryou take off your seat belt and open the
driver's door, e.g. for a change of drivers or
to take a break.
When ATTENTION ASSIST is deactivated, the
é symbol appears in the multifunction
display in the assistance graphics display.
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.
Camera ;of Night View Assist Plus picks up
the infrared light and displays a black and
white image in COMAND. The image shown in
COMAND corresponds to a road lit up by high-
beam headlamps. This enables you to see the
road's course and any obstacles in good time. When pedestrian recognition is active, pedes-
trians recognized by the system are visually
highlighted in color in the Night View Assist
Plus display with small frame corners.
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 traf-
fic.
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In addition, thermal imaging camera:is
integrated in the radiator grill. The camera
helps detect pedestrians and animals.
Observe the notes on cleaning the thermal
imaging camera and cleaning the windshield
(
Ypage 547).
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 driving style to suit the prevailing road
and traffic conditions.
The system may be impaired or may not func-
tion if:
Rif there is poor visibility, e.g. due to snow,
rain, fog or spray
Rif the windshield is dirty, fogged up or cov-
ered, for instance by a sticker, in the vicinity
of the camera
Rif the thermal imaging camera in the radia-
tor grill is dirty, fogged up or covered
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. The
actual distance to objects and pedestrians
cannot be gaged accurately by looking at a
screen.
It may be the case that other objects are
marked or highlighted as well as pedestrians
and animals.
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 vehicles
Rthe silhouette of the pedestrian or of the
animal in the Night View Assist Plus display
is incomplete or interrupted, e.g. by pow-
erful light reflections
Rpedestrians or animals do not contrast with
the surroundings
Rthe camera system no longer recognizes
pedestrians as persons due to special
clothing 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 deacti-
vated 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 in the
COMAND display
;Readiness symbol for active pedestrian
recognition
=Highlighting
?Pedestrian recognized
Night View Assist Plus can recognize pedes-
trians using typical characteristics, e.g. the
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body contours and posture of a person stand-
ing upright.
Pedestrian recognition is then switched on
automatically 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, symbol ;
appears. Persons who are detected are high-
lighted by framing =. If the pedestrian rec-
ognition system has brought a pedestrian to
your attention, look through the windshield to evaluate the situation.
Animal recognition
Animals can be recognized in the following
situations:
Rdarkness
Routside built-up areas
Rbelow an outside temperature of 90 ‡
(32 †)
Nigh tView Assist Pl us can recognize larger
animals such as deer, co wsor horses using
typical characteristics.
The system does not detect:
Rsmaller animals, e.g. dogs and cats
Ranimals whose silhouette is not clearly rec-
ogniza ble
When detecte d,animals are marked with
small color frame corners. Incontrast to
pede strian recognit ion, thereisno separate
stand bysymbol inthe multifunction display.
Activating/deactivating Night View
Assist Plus
Activation conditions
You can only activate Night View Assist Plus if
all of the following cond itions are met:
Rthe ignit ionisswitched on (Ypage 151) or
the engine has been started.
Rthe light switch is intheà orL posi-
tion.
Rreverse gear has not been engaged.
Activating Night View Assist Plus
XPress button :.
The Night View Assist Plus display appears
in the COMAND display.
iThe infrared headlamps only switch onin
the dark from speeds of approximately
6 mph (10 km/h). This means that you do
not have the full visual range whilethe veh i-
cle isstationary and cannot check whether
Night View Assist Plus isworking. The infra-
red headlamps are deactivated at speeds
below 3 mph (5 km/h). The Night View
image continues to be displayed.
Automatic activation
You can use COMAND to select the Night
View Assist Automatic Activation
option. The pedestrian and animal search
function remains active even when the Night
View image is not displayed. In the dark, in
unlit surroundings and at speeds of more than
60 km/h, the Night View image is automati-
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cally displayed in the COMAND display as
soon as pedestrians or animals are detected.
XIn COMAND, select automatic activation of
Night View Assist Plus (
Ypage 320)
Deactivating Night View Assist Plus
XPress button :.
The Night View Assist Plus display goes off
in the COMAND display. Night View Assist
Plus is deactivated.
Spotlight function
General notes
iThe function described below is not avail-
able in all countries.
Under certain conditions, the spotlight func-
tion uses the headlamps to flash at detected
pedestrians.
The spotlight function is only active if:
Rpedestrian recognition is active
Rthe road surface is not lit
Rthe driving speed is at least 40 mph
(60 km/h)
Rthe "Adaptive Highbeam Assist"
(
Ypage 128 )or "Adaptive Highbeam Assist
PLUS" function is activated
Rreverse gear has not been engaged
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 func-
tion is running in the background. If the pre-
requisites are met, the spotlight function uses
the headlamps to flash four short pulses at a
pedestrian detected on or near to the road
surface.
XIn the light menu, select the spotlight func-
tion of Night View Assist Plus
(
Ypage 233).
The spotlight function does not flash at ani-
mals.
Display in the assistance graphic
Pedestrian symbol :in the assistance
graphic indicates the status of the spotlight
function. If the symbol is displayed not filled
in, the function is switched on. If the symbol is
displayed filled in, the conditions for the spot-
light function are met.
Displaying the assistance graphic
XSelect the Assistance Graphicfrom the
DriveAssist
menu (Ypage 231).
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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 547).
XDefrost the windshield (Ypage 144).
The windshield is iced up.
XDe-ice the windshield (Ypage 143).
The windshield wipers are smearing the windshield.
XReplace the wiper blades (Ypage 131).
The windshield is smeared after the vehicle has been cleaned in a
car wash.
XClean the windshield (Ypage 545).
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 grill is dirty.
XUse a soft cloth and water to clean the infrared camera.
Active Driving Assistance package
General notes
The Active Driving Assistance package con-
sists of DISTRONIC PLUS (
Ypage 182), Active
Blind Spot Assist (
Ypage 214) and Active
Lane Keeping Assist (
Ypage 217).
Active Blind Spot Assist
General notes
Active Blind Spot Assist uses a radar sensor
system to monitor the side areas of your vehi-
cle which are behind the driver. A warning
display in the exterior mirrors draws your
attention to vehicles detected in the moni-
tored area. If you then switch on the corre-
sponding turn signal to change lanes, you will
also receive an optical and audible collision
warning. If a risk of lateral collision is detec-
ted, corrective braking may help you avoid a collision. To support the course-correcting
brake application, Active Blind Spot Assist
also uses the forward-facing radar sensor sys-
tem.
Active Blind Spot Assist supports you from a
speed of approximately 20 mph (30 km/h).
For Active Blind Spot Assist to assist you
when driving, the radar sensor system must
be operational.
Important safety notes
Active Blind Spot Assist is only an aid. It may
fail to detect some vehicles and is no substi-
tute 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
214Driving systems
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