mine which warning display is active when the
engine is running.
Transmission
positionWarning display
DFront area activated
R,Nor the vehicle
is rolling back-
wardsRear and front areas
activated
PNo areas activated
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
;To deactivate/activate 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.
Driving systems201
Driving and parking
Z
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 then
deactivated and the
indicator lamp on 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 then
deactivated.The PARKTRONIC sensors are dirty or there is interference.
XClean the PARKTRONIC sensors (Ypage 335).
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 and brake application
can assist you during parking and when exit-
ing a parking space. You may also use
PARKTRONIC (
Ypage 199).
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
202Driving systems
Driving and parking
Active Parking Assist can only assist you with
exiting a parking space if you have parked the
vehicle parallel to the direction of travel using
Active Parking Assist.
iIf PARKTRONIC detects obstacles, Active
Parking Assist brakes automatically whilst
the vehicle exits the parking space. You are
responsible for braking in good time.
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 dis-
play %.
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.
XPull away, being ready to brake at all times. Do not exceed a maximum speed of
approximately 6 mph (10 km/h) when exit-
ing a parking space. Otherwise Active Park-
ing Assist will be canceled.
XShift the transmission to position Dor Ras
required or according to the message while
the vehicle is stationary.
Active Parking Assist immediately steers in
the other direction. The Park Assist
Active Accelerate and Brake
ObserveSurroundingsmessage appears
in the multifunction display.
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 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.
Canceling Active Parking Assist
XStop the movement of the multifunction
steering wheel or steer yourself.
Active Parking Assist will be canceled at
once. The Park Assist Canceled
mes-
sage appears in the multifunction display.
or
XPress the PARKTRONIC button
(
Ypage 201).
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
disappears and the multifunction display
206Driving systems
Driving an d parking
: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)
;Yellow guide line for the vehicle width
including the exterior mirrors, for current
steering 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 12 in (0.30 m) fromthe rear of the
vehicle
XMake sure that the rear view camera is
switched on .
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
:Parking space marking
;Yellow guide line for the vehicle width
including the exterior mirrors, for 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 .
The lane and the guide lines are shown.
XWhile the vehicle is at a standstill, turn the
steering wheel in the direction of the park-
Driving system s209
Driving an d parking
Z
ing space until yellow guide line;reaches
parking space marking :.
XKeep the steering wheel in that position
and back up carefully.
:Yellow guide line for the vehicle width
including the exterior mirrors, for 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 possi-
ble.
: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.
:Red guide line at a distance of approx-
imately 12 in (0.30 m) from the rear of the
vehicle
;White guide line without turning the steer- ing wheel
=End of parking space
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.
180° view
:Symbol for the 180° view function
;PARKTRONIC warning displays
You can also use the rear view camera to
select a 180° view.
When PARKTRONIC is operational
(
Ypage 200), a symbol for your own vehicle
appears in the COMAND display. If the
PARKTRONIC warning displays are active,
warning displays ;light up in the COMAND
display in yellow or red respectively.
210Driving systems
Driving and parking
The 360° camera will not function or will
function in a limited manner:
Rif the doors are open
Rif the exterior mirrors are folded in
Rif the trunk lid 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 the camera lenses fog up, e.g. when driv-
ing into a heated garage in winter, causing
a rapid change in temperature
Rif the camera lenses are dirty or covered.
Observe the notes on cleaning
(
Ypage 336)
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.
The guide lines in the COMAND display show
the distances to your vehicle. The distances
only apply to road level.
iThe 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:
Ryou have finished the maneuvering proc-
ess
Ryou switch off the engine
Ryou open the trunk
Observe the notes on cleaning
(
Ypage 336).
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:
Rinaccuracies in the guide lines
Rinaccuracies in the display of generated
images (top view)
Activation conditions
The 360° camera image can be displayed if:
RCOMAND is switched on (see the separate
operating instructions)
Rthe 360° Camerafunction is switched on
iIf the 360° camera is activated at speeds
above approximately 19 mph (30 km/h) , a
warning message appears.
The warning message disappears if:
Rthe vehicle's speed falls below approx-
imately 19 mph (30 km/h). The 360°
camera is then activated.
Rthe message is confirmed with the %
button.
Switching the 360° camera on and off
using the button
XTo switch on: press button:.
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
XTo switch off: press button:again.
212Driving systems
Driving and parking
Due to the nature of the system:
Rwarnings may be issued in error when driv-ing close to crash barriers or similar solid
lane borders.
Rwarnings may be interrupted when driving
alongside particularly long vehicles, e.g.
trucks, for a prolonged time.
Warning display
:Warning display
Active Blind Spot Assist is not operational at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
If a vehicle is detected within the blind spot
monitoring range at speeds above 20 mph
(30 km/h), warning lamp :on the corre-
sponding side lights up red. This warning is
always emitted when a vehicle enters the
blind spot monitoring range from behind or
from the side. When you overtake a vehicle,
the warning only occurs if the difference in
speed is less than 7 mph (12 km/h).
If you select the reverse gear, Active Blind
Spot Assist is not operational.
The brightness of the warning lamps is auto-
matically adapted to the brightness of the
surroundings.
When Active Blind Spot Assist is activated,
gray radar waves propagating backwards
appear next to the vehicle in the assistance
display in the multifunction display. Above a
speed of 20 mph (30 km/h), the color of the
radar waves in the assistance display
changes to green ;. Active Blind Spot Assist
is then ready for use.
Visual and acoustic collision warning
If you switch on the turn signals to change
lanes and a vehicle is detected in the side
monitoring range, you receive a visual and
acoustic collision warning. You will then hear
a double warning tone and red warning
lamp :flashes. If the turn signal remains on,
detected vehicles are indicated by the flash-
ing of red warning lamp :. There are no fur-
ther warning tones.
Course-correcting brake application
If Active Blind Spot Assist detects a risk of a
lateral collision in the monitoring range, a
course-correcting brake application is carried
out. This is meant to assist you in avoiding a
collision.
GWARNING
A course-correcting brake application cannot always prevent a collision. There is a risk of an
accident.
Always steer, brake or accelerate yourself,
especially if Active Blind Spot Assist warns
you or makes a course-correcting brake appli-
cation. Always maintain a safe distance at the
sides.
224Driving system s
Driving an d parking
If a course-correcting brake application
occurs, red warning lamp:flashes in the
exterior mirror and a dual warning tone
sounds. In addition, display ;underlining
the danger of a side collision appears in the
multifunction display.
In very rare cases, the system may make an
inappropriate brake application. A course-
correcting brake application may be interrup-
ted at any time if you steer slightly in the
opposite direction or accelerate.
The course-correcting brake application is
available in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h).
Either no braking application, or a course-
correcting brake application adapted to the
driving situation occurs if:
Rthere are vehicles or obstacles, e.g. crash
barriers, located on both sides of your vehi-
cle.
Ra vehicle approaches you too closely at the
side.
Ryou have adopted a sporty driving style with
high cornering speeds.
Ryou clearly brake or accelerate.
Ra driving safety system intervenes, e.g.
ESP®or PRE-SAFE®Brake.
RESP®is switched off.
Ra loss of tire pressure or a defective tire is
detected.
Switching on Active Blind Spot Assist
XMake sure that Active Blind Spot Assist is
activated in the on-board computer
(
Ypage 246).
XTurn the SmartKey to position 2in the igni-
tion lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds. Gray radar waves propagating backwards
appear next to the vehicle in the assistance
display in the multifunction display.
Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of multi-
function camera :at the top of the wind-
shield. Various different areas to the front,
rear and side of your vehicle are also moni-
tored with the aid of the radar sensor system.
Active Lane Keeping Assist detects lane
markings on the road and can warn you
before you leave your lane unintentionally. If
you do not react to the warning, a lane-cor-
recting application of the brakes can bring the
vehicle back into the original lane.
This function is available in a speed range
between 40 mph and 120 mph (60 km/h and 200 km/h).
Important safety notes
If you fail to adapt your driving style, Active
Lane Keeping Assist can neither reduce the
risk of accident nor override the laws of phys-
ics. Active Lane Keeping Assist cannot take
account of road and weather conditions. It
may not recognize traffic situations. Active
Lane Keeping Assist is only an aid. You are
responsible for the distance to the vehicle in
front, for vehicle speed, for braking in good
time and for staying in your lane.
Active Lane Keeping Assist cannot continu-
ously keep your vehicle in its lane.
GWARNING
Active Lane Keeping Assist cannot always
clearly detect lane markings.
Driving systems225
Driving and parking
Z