Parking tips:
ROn narrow roads, drive as close to the park-
ing space as possible.
RParking spaces that are littered or over-
grown might be identified or measured
incorrectly.
RParking spaces that are partially occupied
by trailer drawbars might not be identified
as such or be measured incorrectly.
RSnowfall or heavy rain may lead to a parking
space being measured inaccurately.
RPay attention to the PARKTRONIC
(
Ypage 225) warning messages during the
parking procedure.
RAt any time, you can intervene in the steer-
ing procedure to correct it. Active Parking
Assist will then be canceled.
RWhen transporting a load which protrudes
from your vehicle, you should not use
Active Parking Assist.
RNever use Active Parking Assist when snow
chains are installed.
RMake sure that the tire pressures are
always correct. This has a direct influence
on the parking characteristics of the vehi-
cle.
Use Active Parking Assist for parking spaces:
Rthat are parallel to the direction of travel
Rthat are on straight roads, not bends
Rthat are on the same level as the road, e.g.
not on the pavement
Detecting parking spaces
Objects located above the height range of
Active Parking Assist will not be detected
when the parking space is measured. These
are not taken into account when the parking
procedure is calculated, e.g. overhanging
loads, tail sections or loading ramps of goods
vehicles.
GWARNING
If there are objects above the detection range, Active Parking Assist may turn prematurely.
You may cause a collision as a result. There is
a risk of an accident.
If there are objects above the detection range,
stop and deactivate Active Parking Assist.
For further information on the detection
range (
Ypage 224).
Active Parking Assist does not support you
parking in spaces that are parallel to the
direction of travel if:
Rthe parking space is on a curb
Rthe system reads the parking space as
being blocked, for example by foliage or
grass paving blocks
Rthe area is too small for the vehicle to
maneuver into
Rthe parking space is bordered by an obsta-
cle, e.g. a tree, a post or a trailer
:Detected parking space on the left
;Parking symbol
=Detected parking space on the right
Active Parking Assist is switched on automat-
ically when driving forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/h). While in operation, the
system independently locates and measures
parking spaces on both sides of the vehicle.
Active Parking Assist will only detect parking
spaces:
Rthat are parallel to the direction of travel
Rthat are at least 59 in (1.5 m) wide
Rthat are at least 39.5 in (1.0 m) longer than
your vehicle
When driving at speeds below 19 mph
(30 km/h), you will see the parking symbol as
a status indicator in the instrument cluster.
When a parking space has been detected, an
228Driving systems
Driving and parking
arrow towards the right or the left also
appears. By default, Active Parking Assist
only displays parking spaces on the front-
passenger side. Parking spaces on the driv-
er's side are displayed as soon as the turn
signal on the driver's side is activated. When
parking on the driver's side, this must remain
switched on until you acknowledge the use of
Active Parking Assist by pressing thea
button on the multifunction steering wheel.
A parking space is displayed while you are
driving past it, and until you are approx-
imately 50 ft (15m) awa yfrom it .
Parking
GWARNING
Active Parking Assist merely aids you by inter- vening actively in the steering. If you do not
brake there is a risk of an accident.
Always apply the brakes yourself when
maneuvering and parking.
XStop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
XShift the transmission to position R.
The Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.
XTo cancel the procedure: press the%
button on the multifunction steering wheel or pull away.
or
XTo park using Active Parking Assist:
press the abutton on the multifunction
steering wheel.
The Park Assist Active Accelerate
andBrakeObserveSurroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steering wheel.
XBack up the vehicle, being ready to brake at
all times. When backing up, drive at a speed
below approximately 6 mph (10 km/h).
Otherwise Active Parking Assist will be can-
celed.
iIn tight parking spaces, you will achieve
the best parking results by backing up as
far as possible. When doing so, also
observe the PARKTRONIC messages.
XStop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
Maneuvering may be required in tight park-
ing spaces.
The Park Assist active Select D
Observesurroundingsmessage appears in
the multifunction display.
XShift the transmission to position Dwhile
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
The Park Assist active Accelerate
andbrakeObservesurroundingsmes-
sage appears in the multifunction display.
iYou will achieve the best results by wait-
ing for the steering procedure to complete
before pulling away.
XDrive forwards and be ready to brake at all
times.
XStop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
The Park Assist active Select R
Observesurroundingsmessage appears in
the multifunction display.
As soon as the parking procedure is com-
plete, the Park
Assistswitchedoffmes-
sage appears and a warning tone sounds.
Active Parking Assist no longer supports you
with steering interventions. When Active
Parking Assist is finished, you must steer
again yourself. PARKTRONIC is still available.
Parking tips:
RThe way your vehicle is positioned in the
parking space after parking is dependent
on various factors. These include the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the
location. It may be the case that Active
Parking Assist guides you too far into a
parking space, or not far enough into it. In
Driving system s229
Driving an d parking
Z
some cases, it may also lead you across or
onto the curb. If necessary, you should can-
cel the parking procedure with Active Park-
ing Assist.
RYou can also select preselect transmission
positionD. The vehicle redirects and does
not drive as far into the parking space.
Should the gear change occur too soon to
achieve a sensible parking position, the
parking procedure will be aborted.
Exiting a parking space
In order that Active Parking Assist can sup-
port you when you exit the parking space:
Ryou need to have parked using Active Park-
ing Assist.
Rthe border of the parking space must be
high enough at the front and the rear. A
curb stone is too small, for example.
Rthe border of the parking space must not be
too wide, as the position of the vehicle must
not exceed an angle of 45° to the starting
position as it is maneuvered into the park-
ing space.
Ra maneuvering distance of at least 3.3 ft
(1.0 m) must be available.
XStart the engine.
XRelease the electric parking brake.
XSwitch on the turn signal in the direction
you are pulling away.
XShift the transmission to position Dor R.
The Start Park Assist? Yes: OK No:
% message appears in the multifunction
display.
XTo cancel the procedure: press the%
button on the multifunction steering wheel
or pull away.
or
XTo exit a parking space using Active
Parking Assist: press theabutton on
the multifunction steering wheel.
The Park Assist Active Accelerate
andBrakeObserveSurroundingsmes-
sage appears in the multifunction display.
XLet go of the multifunction steering wheel.
XReverse the vehicle or drive forwards, being
ready to brake at all times. Do not exceed a
maximum speed of approximately 6 mph
(10 km/h) when exiting a parking space.
Otherwise Active Parking Assist will be can-
celed.
XStop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
XShift the transmission to position Dor Ras
required while the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction.
iYou will achieve the best results by wait-
ing for the steering procedure to complete
before pulling away.
If you back up after activation, the steering
wheel is moved to the straight-ahead posi-
tion.
XDrive forwards or back up the vehicle, being
ready to brake at all times.
XStop as soon as PARKTRONIC sounds the
continuous warning tone, if not before.
XDrive forwards and back up as prompted by
the PARKTRONIC warning displays, several
times if necessary.
Once you have exited the parking space com-
pletely, the steering wheel is moved to the
straight-ahead position. You hear a tone and
the Park Assist Finished
message
appears in the multifunction display. You will
then have to steer and merge into traffic on
your own. PARKTRONIC is still available. You
can take over the steering, before the vehicle
has exited the parking space completely. This
is useful, for example when you recognize
that it is already possible to pull out of the
parking space.
230Driving systems
Driving and parking
Canceling Active Parking Assist
XStop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be canceled at
once. ThePark Assist Canceled
mes-
sage appears in the multifunction display.
or
XPress the PARKTRONIC button on the cen-
ter console (
Ypage 226).
PARKTRONIC is switched off and Active
Parking Assist is immediately canceled.
The Park Assist Canceled
message
appears in the multifunction display.
Active Parking Assist is canceled automati-
cally if:
Rthe electric parking brake is engaged
Rtransmission position Pis selected
Rparking using Active Parking Assist is no
longer possible
Ryou are driving faster than 6 mph (10 km/h)
Ra wheel spins, ESP®intervenes or fails. The
÷ warning lamp lights up in the instru-
ment cluster.
A warning tone sounds. The parking symbol
goes out and the Park Assist Canceled
message appears in the multifunction dis-
play.
If Active Parking Assist is canceled, you must
steer again yourself.
Towing a trailer
For vehicles with a trailer tow hitch, the min-
imum length for parking spaces is slightly
increased.
If you have attached a trailer to your vehicle,
you should not use Active Parking Assist.
Once the electrical connection is established
between your vehicle and the trailer, Active
Parking Assist is no longer available.
PARKTRONIC is deactivated for the rear area.
Rear view camera
General notes
Rear view camera :is in the handle on the
tailgate.
Rear view camera :is 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.
iThe 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 imme- diate surroundings. You are always responsi-
ble 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:
Rif the tailgate is open
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)
Driving systems231
Driving and parking
Z
=Red guide linefor th evehicl ewidt hinclud -
in gth eexterio rmirrors, for curren tsteer -
in g whee langle (dynamic )
?Yellowlan emarking tires at curren tsteer -
in g whee langle (dynamic )
AYellowguide lin eat adistanc eof approx -
imately 3ft (1.0 m) from the 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.
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 225), 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
Driving system s233
Driving an d parking
Z
Wide-angle function
Example: full screen mode with PARKTRONIC dis-
play
:
Symbol for the full screen setting with rear
view camera image
;PARKTRONIC warning display
If the vehicle is equipped with PARKTRONIC
and the function is active (
Ypage 226), warn-
ing displays ;in the COMAND display are
also active or light up accordingly.
PARKTRONIC appears:
Rin split screen view as red or yellow brack-
ets around the vehicle icon in the top view,
or
Rin the full screen view, on the right-hand
side at the bottom as red or yellow brackets
around the vehicle icon
iThe full screen display can also be selec-
ted as front view.
Exiting 360° camera display mode
As soon as your vehicle exceeds a speed of
19 mph (30 km/h) with the function activa-
ted, the function switches off. The COMAND
display switches back to the previously selec-
ted view. You can also switch the display by
selecting the &symbol in the display and
pressing Wthe COMAND controller to con-
firm.
ATTENTION ASSIST
General 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 indicators
of fatigue or increasing lapses in concentra-
tion on the part of the driver, it suggests you
take 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 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 the time has been set incorrectly
Rin active driving situations, such as when
you change lanes or change your speed
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
240Driving systems
Driving and parking
Activating ATTENTION ASSIST
XActivateATTENTI ONASSIST usin gth eon -
boar dcomputer (
Ypage 282).
When ATTENTI ONASSIST is deactivated, th e
é symbol appear sin th emultifunction
display in th eassistanc egraphic display.
ATTENTI ONASSIST is activated automatically
after th eengin eis started up.
Warn ing and display messages in the
mu ltifunction display
If fatigue or increasing lapse sin concentra-
tion are detected, awarning appear sin th e
multifunction display: Attention Assist:
Take a Break!
In addition to th emessage shown in th emul-
tifunction display, you will then hear awarn -
ing tone .
XIf necessary, tak e abreak.
XConfir mthemessage by pressing th ea
butto non th esteering wheel.
On longjourneys, tak eregular breaks in goo d
time to allow yourself to res tproperly. If you
do no ttak e a break, you will be warned again
after 15 minute sat th eearliest .The precon-
dition for this is that ATTENTI ONASSIST still
detects typical indicators of fatigue or
increasing lapse sin concentration .
Night View Assist Plus
Gene ral notes
In addition to th eillumination provide dby th e
normal headlamps ,Night View Assis tPlus
uses infrared ligh tto illuminate th eroad .
Night View As sistPlus camera :picks up th e
infrared ligh tand displays amonochrome
imag ein COMAND .The imag edisplayed in
COMAND correspond sto aroad lit up by high -
beam headlamps .This enables you to seethe
road's cours eand any obstacles in goo dtime.
If pedestrian recognition is activated, pede s-
trian srecognized by th esystem are highligh -
te din th eNight View Assis tPlus display.
Light from th eheadlamps of oncomin gvehi-
cle sdoes no taffec tth eNight View As sistPlus
display in th emultifunction display. This is
also th ecas eif you canno tswitch on th ehigh -
beam headlamps due to oncomin gtraffic.
iInfrared ligh tis no tvisible to th ehuma n
eye and therefor edoes no tglare. Night
View Assis tPlus can therefor eremain
switched on eve nif there is oncomin gtraf-
fic .
Import ant safety notes
Night View As sistPlus is only an aid and is no t
a substitut efor attentive driving .Do no trel y
on th eNight View Assis tPlus display. You are
responsible for th edistanc eto th evehicl ein
front, for vehicl espee dand for braking in
goo dtime. Drive carefully and always adapt
your driving style to suit th eprevailing road
and traffic conditions.
The system may be impaire dor may no tfunc-
tion if:
Rthere is poor visibility, e.g. due to snow,
rain ,fog or spray
Rth ewindshield is dirty, fogged up or cov-
ered, for instance by asticker, in th evicinity
of th ecamera
Ron ben ds,on uphill gradients or downhill
gradients
Driving systems241
Driving and parking
Z
Problems with Night View Assist Plus
ProblemPossible causes/consequences andMSolutions
The picture quality of
Night View Assist Plus
has deteriorated.The windshield wipers are smearing the windshield.
XReplace the wiper blades (Ypage 140).
The windshield is smeared after the vehicle has been cleaned in a
car wash.
XClean the windshield (Ypage 379).
There is windshield chip damage in the camera's field of vision.
XReplace the windshield.
The windshield is fogged up on the inside.
XDefrost the windshield (Ypage 158).
The windshield is iced up.
XDe-ice the windshield (Ypage 157).
There is dirt on the inside of the windshield.
XClean the inside of the windshield (Ypage 379).
Lane Tracking package
General notes
The Lane Tracking package consists of Blind
Spot Assist (
Ypage 244) and Lane Keeping
Assist (
Ypage 246).
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
corresponding turn signal to change lanes,
you will also receive a visual and audible col-
lision warning.
Blind Spot Assist supports you from a speed
of approximately 20 mph (30 km/h) .Important safety notes
GWARNING
Blin d 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 insuch situations. There isa 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
244Driving systems
Driving and parking