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responsible for safe maneuvering, parking and
exiting a parking space. Make sure that there
are no persons, animals or objects etc., in the
maneuvering area while maneuvering and park-
ing or exiting parking spaces.
!When parking, pay particular attention to
objects above or below the sensors, such as
flower pots or trailer drawbars. Parking Assist
PARKTRONIC does not detect such objects
when they are in the immediate vicinity of the vehicle. You could damage the vehicle or the
objects.
The sensors may not detect snow and other
objects that absorb ultrasonic waves.
Ultrasonic sources such as an automatic car
wash, the compressed-air brakes of a truck or
a pneumatic drill could cause Parking Assist
PARKTRONIC to malfunction.
Parking Assist PARKTRONIC may not function
correctly on uneven terrain.
Parking Assist PARKTRONIC is activated auto-
matically when you:
Rswitch on the ignition
Rshift the transmission to position h,kor
i
Parking Assist PARKTRONIC is deactivated at
speeds above approx. 11 mph (18 km/h). It is
reactivated at lower speeds.
Range of the sensors
General notes
Parking Assist PARKTRONIC does not take into
account obstacles located:
Rbelow the detection range, e.g. people, ani-
mals or objects.
Rabove the detection range, e.g. overhanging
loads, truck overhangs or loading ramps.
:Sensors in the front bumper, left-hand side
(example)
The sensors must be free from dirt, ice or slush.
They can otherwise not function correctly. Clean
the sensors regularly, taking care not to scratch
or damage them (
Ypage 242).
Range
:Approx. 24 in (approx. 60 cm) (corners)
;Approx. 32 in (approx. 80 cm) (corners)
=Approx. 48 in (approx. 120 cm) (center)
?Approx. 40 in (approx. 100 cm) (center)
Minimum distance
CenterApprox. 8 in (approx. 20 cm)
CornersApprox. 6 in (approx. 15 cm)
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If there is an obstacle within this range, the rel-
evant warning displays light up and a warning
tone sounds. If the distance falls below the min-
imum, the distance may no longer be shown.
Warning displays
:Segments on the left-hand side of the vehi-
cle
;Segments on the right-hand side of the vehi-
cle
=Segments showing operational readiness
The warning displays show the distance
between the sensors and the obstacle. The
warning display for the front area is in the instru-
ment cluster. The warning display for the rear
area is located on the cover behind the seats in
the rear compartment.
The warning display for each side of the vehicle
is divided into five yellow and two red segments.
Parking Assist PARKTRONIC is operational if
operational readiness indicator =lights up.
The selected transmission position and the
direction in which the vehicle is rolling deter-
mine which warning display is active when the
engine is running.
Transmission posi-
tionWarning display
hFront area activated
k, ior the vehicle
is rolling backwardsRear and front areas
activated
jNo areas activated
One or more segments light up as the vehicle
approaches a detected obstacle, depending on
the vehicle's distance from the obstacle:
From the:
Rsixth segment onwards, you will hear an inter-
mittent warning tone for approximately two
seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two seconds.
This indicates that you have now reached the minimum distance.
Deactivating or activating Parking
Assist PARKTRONIC
:Indicator lamp
;Deactivates or activates Parking Assist
PARKTRONIC
If indicator lamp :lights up, Parking Assist
PARKTRONIC is deactivated.
iParking Assist PARKTRONIC is automati-
cally activated when you set the Start/Stop
button to key position 2.
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Problems with Parking Assist PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments in
the Parking Assist
PARKTRONIC warning
displays are lit. You also
hear a warning tone for
approximately two sec-
onds.
Parking Assist
PARKTRONIC is then
deactivated and the indi-
cator lamp on the
PARKTRONIC button
lights up.Parking Assist PARKTRONIC has malfunctioned and has been deacti-
vated.
XIf problems persist, have Parking Assist PARKTRONIC checked at a
qualified specialist workshop.
Only the red segments in
the Parking Assist
PARKTRONIC warning
displays are lit. Parking
Assist PARKTRONIC is
then deactivated.The Parking Assist PARKTRONIC sensors are dirty or there is inter-
ference.
XClean the Parking Assist PARKTRONIC sensors (Ypage 242).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or ultra-
sound waves.
XCheck to see if Parking Assist PARKTRONIC works at a different
location.
Reversing camera
General notes
Rear view camera :is located in the rear
bumper, underneath the tailgate.
Rear view camera :is an optical parking and
maneuvering aid. It shows the area behind your
vehicle with guide lines in the multimedia sys-
tem display.
The area behind the vehicle is displayed as a
mirror image, as in the rear view mirror.
iThe text shown in the multimedia system
display depends on the language setting. The
following are examples of rear view camera
messages in the multimedia system display.
Important safety notes
The rear view camera is only an aid. It is not a
replacement for your attention to your immedi-
ate surroundings. You are always responsible
for safe maneuvering and parking. Make sure
that there are no persons, animals or objects
etc., in the maneuvering area while maneuvering
and parking in parking spaces.
The rear view camera will not function or will
function only to a limited extent if:
Rin heavy rain, snow or fog
Rat night or in very dark places
Rif the camera is exposed to very bright light
Rif the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
Rif there is a sudden change in temperature,
e.g. when driving into a heated garage in win- ter
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Rif the camera lens is dirty or obstructed.
Observe the notes on cleaning
(
Ypage 242)
Rif the rear of your vehicle is damaged. In this
case, have the camera position and setting
checked at a qualified specialist workshop
The field of vision and other functions of the
reversing camera may be restricted due to addi-
tional accessories on the rear of the vehicle (e.g. license plate holder).
The guide lines in the multimedia system display
show the distances to your vehicle. The distan-
ces only apply to road level.
Activating/deactivating the rear view
camera
XTo activate: ensure that SmartKey position
2 has been selected with the Start/Stop
button.
XMake sure that the Activation by R gearfunction is selected in the multimedia system
(see the Digital Owner's Manual).
XEngage reverse gear.
The area behind the vehicle is shown with
guide lines in the multimedia system display.
The image from the rear view camera is avail-
able throughout the maneuvering process.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to jor after
driving forwards a short distance.
Messages in the multimedia system dis-
play
The rear view camera may show a distorted view
of obstacles, show them incorrectly or not at all.
Obstacles are not shown by the rear view cam-
era in the following locations:
Rvery close to the rear bumper
Runder the rear bumper
!Objects not at ground level may appear to
be further away than they actually are, e.g.:
Rthe bumper of a parked vehicle
Rthe drawbar of a trailer
Rthe ball coupling of a trailer tow hitch
Rthe rear section of an HGV
Ra slanted post Use the guidelines only for orientation.
Approach objects no further than the bottom-
most guideline.
:Yellow guide line at a distance of approx-
imately 13 ft (4.0 m) from the rear of the
vehicle
;White guide line without steering input –
vehicle width including the exterior mirrors
(static)
=Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
?Yellow lane marking the course the tires will
take at the current steering wheel angle
(dynamic)
AYellow guide line at a distance of approx-
imately 3 ft (1.0 m) from the rear of the vehi-
cle
BVehicle center axle (marker assistance)
CBumper
DRed guide line at a distance of approximately
12 in (0.30 m) from the rear of the vehicle
The guide lines are shown when the transmis-
sion is in position k.
The distance specifications only apply to
objects that are at ground level.
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:Front warning display
;Additional measurement operational readi-
ness indicator for Parking Assist
PARKTRONIC
=Rear warning display
Vehicles with Parking Assist PARKTRONIC:
when Parking Assist PARKTRONIC is opera-
tional (
Ypage 144), additional measurement
operational readiness indicator ;appears in
the multimedia system display. If the Parking
Assist PARKTRONIC warning displays are active
or light up, warning displays :and =are also
active or light up correspondingly in the multi-
media system display.
"Reverse parking" function
Backing up straight into a parking space
without steering input
:White guide line without steering input –
vehicle width including the exterior mirrors
(static)
;Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
=Yellow guide line at a distance of approx-
imately 3 ft (1.0 m) fromthe rear of the vehi-
cle
?Red guide line at a distance of approximately
12 in (0.30 m) fromthe rear of the vehicle
XMake sure that the rear view camera is
switched on (Ypage 146).
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, carefully
back up until you reach the end position.
Red guide line ?is then at the end of parking
space. The vehicle is almost parallel in the
parking space.
Reverse perpendicular parking with steer-
ing input
:Parking space marking
;Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steering wheel angle (dynamic)
XDrive past the parking space and bring the
vehicle to a standstill.
XMake sure that the rear view camera is
switched on (Ypage 146).
The lane and the guide lines are shown.
XWhile the vehicle is at a standstill, turn the
steering wheel in the direction of the parking
space until yellow guide line ;reaches park-
ing space marking :.
XMaintain the steering input and reverse care-
fully.
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:Yellow guide line for the vehicle width
including the exterior mirrors, at the current
steering 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 possible.
:White guide line at the current steering input
;Parking space marking
XTurn the steering wheel to the center positionwhile the vehicle is stationary.
:Red guide line at a distance of approximately
12 in (0.30 m) from the rear of the vehicle
;White guide line without steering input
=End of parking space
XBack up carefully until you have reached the
final position.
Red guide line :is then at the end of parking
space =. The vehicle is almost parallel in the
parking space.
Wide-angle function
:Symbol for the wide-angle view function
;Your vehicle
=Warning displays for Parking Assist
PARKTRONIC
You can also use the rear view camera to select
a wide-angle view.
When Parking Assist PARKTRONIC is opera-
tional (
Ypage 144), a symbol for your own vehi-
cle appears in the multimedia system display. If
the Parking Assist PARKTRONIC warning dis-
plays are active, warning displays =light up in
the multimedia system display in yellow or red
accordingly.
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.
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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 the time has been set incorrectly
Rin active driving situations, such as when youchange lanes or change your speed
The ATTENTION ASSIST tiredness assessment
is deleted and restarted when you continue the
journey:
Rwhen you switch off the engine
Rwhen 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 (Ypage 163) of
the on-board computer.
XSelect the Assistance display for ATTENTION
ASSIST using the on-board computer
(
Ypage 162). The following information is displayed:
Rthe length 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 what is
shown, e.g. if you are driving at a speed below
37 mph (60 km/h) or above 125 mph
(200 km/h) .
Activating ATTENTION ASSIST
XActivateATTENTION ASSIST usin gth eon -
boar dcomputer (Ypage 163).
The system determine sth eattention level of
th edriver depending on th esetting selected:
Selection of Standard
:th esensitivit ywit h
whic hth esystem determine sth eattention level
is set to normal.
Selection of Sensitive
:th esensitivit yis set
higher. The attention level detecte dby ATTEN-
TIO NASSIST is adapted accordingly and th e
driver is warned earlier .
When ATTENTION ASSIST is deactivated, th e
é symbol appear sin th emultifunction dis-
play in th eAssistance display.
When ATTENTION ASSIST has been deactivated,
it is automatically reactivated after th eengin e
has been stopped. The sensitivit yselected cor-
responds to th elast selection activated (Stand‐
ardor Sensitive).
Warn ing in the multifunction display
If fatigue or increasing lapse sin concentration
are detected, awarning appear sin th emulti-
function display: ATTENTION ASSIST
Take aBreak!.
In addition to th emessage shown in th emulti-
function display, you will then hear awarning
tone .
XIf necessary, tak e abreak.
XConfir mthemessage by pressing th ea
butto non th esteering wheel.
On lon gjourneys, tak eregular breaks in goo d
time to allow yourself to rest. If you do no ttak e
a break and ATTENTION ASSIST still detects
increasing lapse sin concentration ,you will be
warned again after 15 minute sat th eearliest .
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This will only happen if ATTENTION ASSIST still
detects typical indicators of fatigue or increas-
ing lapses in concentration.
If a warning is output in the multifunction dis-
play, a service station search is performed in
COMAND. You can select a service station and
navigation to this service station will then begin.
This function can be activated and deactivated
in COMAND.
Lane Tracking package
General notes
The Lane Tracking package consists of Blind
Spot Assist (Ypage 150) and Lane Keeping
Assist (Ypage 152).
Blind Spot Assist
General notes
Blind Spot Assist monitors the areas on either
side of the vehicle that are not visible to the
driver with two lateral, rear-facing radar sen-
sors. A warning display in the exterior mirrors
draws your attention to vehicles detected in the
monitored area. If you then switch on the cor-
responding turn signal to change lane, you will
also receive an optical and audible warning.
Blind Spot Assist supports you from a speed of
approximately 20 mph (30 km/h).
Important safety notes
GWARNING
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, Blind Spot Assist may not give
warnings in such situations. There is a risk of
an accident.
Always observe the traffic conditions care-
fully, and maintain a safe lateral distance.
Blind Spot Assist is only an aid. It may fail to
detect some vehicles and is no substitute for
attentive driving. Always ensure that there is
sufficient distance to the side for other road
users and obstacles.
iUSA only:
This device has been approved by the FCC as
a "Vehicular Radar System". The radar sensor is intended for use in an automotive radar
system only. Removing, tampering with, or
altering the device will void any warranties,
and is not permitted by the FCC. Do not tam-
per 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 radar sensors for Blind Spot Assist are inte-
grated into the rear bumper. Make sure that the
bumpers are free from dirt, ice or slush. The
sensors must not be covered, e.g. by overhang-ing loads. Following a severe impact or in the
event of damage to the bumpers, have the func-
tion of the radar sensors checked at a qualified
specialist workshop. Blind Spot Assist may no
longer work properly.
Monitoring area
In particular, the detection of obstacles can be
impaired if:
Rthere is dirt on the sensors or anything else
covering the sensors
Rthere is poor visibility, e.g. due to fog, heavy
rain, snow or spray
Rthere are narrow vehicles, e.g. motorcycles or
bicycles
Rthe road has very wide lanes
Rthe road has narrow lanes
Ryou are not driving in the middle of the lane
Rthere are barriers or other road boundaries
Vehicles in the monitoring range are then not
indicated.
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