
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 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:
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
÷ ESP warning lamp lights up in the
instrument 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.
Rear view camera
General notes
Rear view camera :is in the trunk lid handle.
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 light 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 lens is dirty or obstructed
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).
206Driving systems
Driving and parking

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.
Driving system s207
Driving an d parking
Z

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-
208Driving system s
Driving an d parking

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
Driving systems209
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 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
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.
Indicator and warning display
:Yellow indicator lamp/red warning lamp
Active Blind Spot Assist is not active at
speeds below approximately 20 mph
(30 km/h). Vehicles in the monitoring range
are then not indicated.
When Active Blind Spot Assist is activated,
indicator lamp :in the exterior mirrors lights
up yellow at speeds of up to 20 mph
(30 km/h). At speeds above 20 mph
(30 km/h), the indicator lamp goes out and
Active Blind Spot Assist is operational.
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 given 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).
The yellow indicator lamp goes out if reverse
gear is engaged. In this event, Active Blind
Spot Assist is no longer active.
The brightness of the indicator/warning
lamps is adjusted automatically according to
the ambient light. Visual and acoustic collision warning
When 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 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
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.
216Driving 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 ;appears in the
multifunction display.
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.
The course-correcting brake application is
available in the speed range between 20 mph (30 km/h) and 120 mph (200 km/h).
Either a very slight course-correcting brake
application, or none at all, may occur 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 (
Ypage 231).
XTurn the SmartKey to position 2in the igni-
tion lock.
Warning lamps :in the exterior mirrors
light up red for approximately 1.5 seconds
and then turn yellow.
Active Lane Keeping Assist
General notes
Active Lane Keeping Assist monitors the area
in front of your vehicle by means of camera :
at the top of the windshield. Active Lane
Keeping Assist detects lane markings on the
road and warns you before you leave your
lane unintentionally. If you do not react to the
warning, a lane-correcting application of the
Driving systems217
Driving and parking
Z

XPress the:or9 button to set the
color to SOLAR
,SOLAR Orangeor SOLAR
Red.
XPress the aor% button to save the
setting.
Activating/deactivating surround light-
ing and exterior lighting delayed switch-
off
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Light
submenu.
XPress ato confirm.
XPress :or9 to select the Sur‐
round Lightingfunction.
If the Surround
Lightingfunction is acti-
vated, the multifunction display shows the
light cone and the area around the vehicle
in orange.
XPress the abutton to save the setting.
Deactivating delayed switch-off of the exte-
rior lighting temporarily:
XBefore leaving the vehicle, turn the Smart-
Key to position 0in the ignition lock.
XTurn the SmartKey to position 2in the igni-
tion lock.
The exterior lighting delayed switch-off is
deactivated.
Delayed switch-off of the exterior lighting is
reactivated the next time you start the
engine.
If you have activated the Surround Light‐
ingfunction and you turn the light switch to
Ã, the following functions are activated
when it is dark:
Rsurround lighting: the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated
(
Ypage 122).
Rexterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close all the doors and the trunk lid, the exterior
lighting goes off after 15 seconds.
iDepending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the fol-
lowing light up:
RParking lamps
RLow-beam headlamps
RDaytime running lamps
RSide marker lamps
RSurround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Interior Lighting
Delayfunction, the interior lighting remains
on for 20 seconds after you remove the
SmartKey from the ignition lock.
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Light
submenu.
XPress ato confirm.
XPress the :or9 button to select the
Interior Lighting Delay
function.
If the Interior
LightingDelayfunction
is activated, the multifunction display
shows the vehicle interior in orange.
XPress the abutton to save the setting.
Vehicle
Activating/deactivating the automatic
door locking mechanism
If you activate the Automatic Door Lock
function, the vehicle is centrally locked above
a speed of approximately 9 mph (15 km/h).
XPress the=or; button on the steer-
ing wheel to select the Sett.
menu.
XPress the:or9 button to select the
Vehicle
submenu.
XPress ato confirm.
234Menus and submenus
On-board computer and displays