
One or more segments light up as the vehicle
approaches an obstacle, depending on the
vehicle's distance from the obstacle.
From the:
Rsixth segment onwards, you will hear an
intermittent warning tone for approx-
imately two seconds.
Rseventh segment onwards, you will hear a
warning tone for approximately two sec-
onds. This indicates that you have now
reached the minimum distance.
Deactivating/activating PARKTRONIC
:Indicator lamp
;Deactivates/activates PARKTRONIC
If indicator lamp :is on then PARKTRONIC is
deactivated. Active Parking Assist is then also
deactivated.
iPARKTRONIC is automatically activated
when you turn the SmartKey to position 2in
the ignition lock.
Towing a trailer
!Fold in the ball coupling if the trailer tow
hitch is not required. PARKTRONIC meas-
ures the minimum detection range to an
obstacle from the bumper, not the ball cou-
pling.
PARKTRONIC is deactivated for the rear area
when you establish an electrical connection
between your vehicle and a trailer.
226Driving systems
Driving and parking

Problems with PARKTRONIC
ProblemPossible causes/consequences andMSolutions
Only the red segments
in the PARKTRONIC
warning displays are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately five seconds,
and the indicator lamp
in the PARKTRONIC
button lights up.PARKTRONIC has malfunctioned and has switched off.
XIf problems persist, have PARKTRONIC checked at a qualified
specialist workshop.
Only the red segments
in the PARKTRONIC
warning displays are lit.
PARKTRONIC is deacti-
vated after approx-
imately five seconds.The PARKTRONIC sensors are dirty or there is interference.
XClean the PARKTRONIC sensors (Ypage 380).
XSwitch the ignition back on.
The problem may be caused by an external source of radio or
ultrasound waves.
XSee if PARKTRONIC functions in a different location.
Active Parking Assist
General notes
Active Parking Assist is an electronic parking
aid with ultrasound. It measures the road on
both sides of the vehicle. A parking symbol
indicates a suitable parking space. Active
steering intervention can assist you during
parking. You may also use PARKTRONIC
(
Ypage 224).
Important safety notes
Active Parking Assist is merely an aid. It is not
a replacement for your attention to your
immediate surroundings. You are always
responsible for safe maneuvering, parking
and exiting a parking space. Make sure that
no persons, animals or objects are in the
maneuvering range.
When PARKTRONIC is switched off, Active
Parking Assist is also unavailable.
GWARNING
While parking or pulling out of a parking
space, the vehicle swings out and can drive
onto areas of the oncoming lane. This could
result in a collision with another road user.
There is a risk of an accident.
Pay attention to other road users. Stop the
vehicle if necessary or cancel the Active Park- ing Assist parking procedure.
!If unavoidable, you should drive over
obstacles such as curbs slowly and not at a
sharp angle. Otherwise, you may damage
the wheels or tires.
Active Parking Assist may possibly indicate
parking spaces which are not suitable for
parking, for example:
Rwhere parking or stopping is prohibited
Rin front of driveways or entrances and exits
Ron unsuitable surfaces
Driving systems227
Driving and parking
Z

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

Rif there is a sudden change in temperature,
e.g. when driving into a heated garage in
winter
Rif the camera lens is dirty or obstructed.
Observe the notes on cleaning
(
Ypage 380)
Rif the rear of your vehicle is damaged. In this
event, have the camera position and setting
checked at a qualified specialist workshop
The field of vision and other functions of the
rear view camera may be restricted due to
additional accessories on the rear of the vehi-
cle (e.g. license plate holder, bicycle rack).
For technical reasons, leaving the standard
height can result in inaccuracies in the guide
lines on vehicles with a height-adjustable
chassis.
Activating/deactivating the rear view
camera
XTo activate: make sure that the SmartKey
is in position 2in the ignition lock.
XMake sure that the "Show rear view camera
display" function is selected in COMAND
(see the Digital Operator's Manual).
XEngage reverse gear.
The area behind the vehicle is shown in the
COMAND display with guide lines.
XTo change the function mode for vehi-
cles with trailer tow hitch: using the
COMAND controller, select symbol :for
the "Reverse parking" function or sym- bol
;for "Coupling up a trailer" (see the
separate COMAND operating instructions).
The symbol of the selected function is high-
lighted.
To deactivate: the rear view camera deacti-
vates if you shift the transmission to Por after
driving forwards a short distance.
Displays in the COMAND display
The rear view camera may show a distorted
view of obstacles, show them incorrectly or
not at all. The rear view camera does not show
objects in the following positions:
Rvery close to the rear bumper
Runder the rear bumper
Rin the area immediately above the tailgate
handle
!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 bot-
tom-most guideline.
:White guide line without turning the steer-
ing wheel, vehicle width including the
exterior mirrors (static)
;Yellow guide line at a distance of approx-
imately 13 ft (4.0m) from the rear of the
vehicle
232Driving system s
Driving an d parking

=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

:Red guide lineat adistanc eof approx -
imately 10 in (0.25 m) from th erear of th e
vehicl e
;Whiteguide lin ewithout turning th esteer -
in g whee l
=Endof parkin gspac e
XBackup carefully until you hav ereached
th efinal position .
Red guide lin e: is then at en dof parkin g
spac e=. The vehicl eis almost parallel in
th eparkin gspace.
"Coupling up atrailer " function
!The followin gdistanc especification s
refer to trailer to whitches wit hball cou-
plin gthat hav ebeen approve dfor this vehi-
cle by Mercedes-Benz. Distances may dif -
fer if you use other ball couplings. In this
case, tak einto accoun tthat actual distan-
ce swill no tmatch th efollowin gdistanc e
specifications. Otherwise you could dam-
age th etrailer and vehicle.
:Vehicl ecenter poin ton th eyellow guide
lin eat adistanc eof approximately 3ft
(1. 0m) from th erear of th evehicl e
;Trailer drawbar
=Ball couplin g
This function is only available on vehicles wit h
a trailer to whitch .
XSetth eheight of trailer drawbar ;so that
it is slightly higher than ball couplin g=.
XPosition th evehicl ecentrally in fron tof
trailer drawbar ;.
:Ball coupling
;Red guide lin eat adistanc eof approx -
imately 10 in (0.25m) from the ball cou-
pling
=Trailer drawbar marker assistant
?Trailer drawbar
ASymbol for the "Coupling up a trailer"
function
XUse the COMAND controller to select sym-
bol A, see the separate operating instruc-
tions for COMAND.
The "Coupling up a trailer" function is selec-
ted. The distance specifications now only
Driving systems235
Driving and parking
Z

Rif the tailgate is open
Rin heavy rain, snow or fog
Rat night or in very dark places
Rif the cameras are 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
winter
Rif the camera lenses are dirty or covered
Rif the vehicle components in which the
cameras are installed are damaged. In this
event, have the camera position and setting
checked at a qualified specialist workshop.
Do not use the 360° camera in this case. You
can otherwise injure others or cause damage to objects or the vehicle.
Activation conditions
The 360° camera image can be displayed if:
Ryour vehicle is equipped with a 360° cam-
era
RCOMAND is switched on, see the separate
COMAND operating instructions
Rthe 360° Camerafunction is activated
Activating the 360° camera using the
SYS button
XPress and hold the Wbutton for longer
than 2 seconds, see the separate COMAND
operating instructions.
Depending on whether position Dor Ris
engaged, the following is shown:
Rfull screen display with the image from
the front camera
Rfull screen display with the image from
the rear view camera
Activating the 360° camera with
COMAND
XPress the Wbutton, see the separate
COMAND operating instructions.
XSelect Systemby turning cVdthe
COMAND controller and press Wto con-
firm.
XSelect 360° Cameraand press Wto con-
firm.
Depending on whether position Dor Ris
engaged, the following is shown:
Ra split screen with top view and the
image from the front camera or
Ra split screen with top view and the
image from the rear view camera
For further information about the COMAND
controller, see the separate COMAND oper-
ating instructions.
Activating the 360° camera using
reverse gear
The 360° camera images can be automati-
cally displayed by engaging reverse gear.
XMake sure that the SmartKey is in position
2 in the ignition lock.
XMake sure that the Activation by R
gearfunction is selected in COMAND, see
the separate COMAND operating instruc-
tions.
XTo show the 360° camera image: engage
reverse gear.
The COMAND display shows the area
behind the vehicle in split screen:
Rvehicle with guide lines
Rtop view of the vehicle
Selecting the split-screen and full
screen displays
XTo switch between split screen views:
switch to the line with the vehicle icons by
sliding ZVthe COMAND controller.
XTurncVd the COMAND controller and
select one of the vehicle symbols.
Driving system s237
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