162Driving and operatingControl indicator r illuminates in
the instrument cluster 3 94 or a
message is indicated in the Driver
Information Centre.
Front-rear parking assist9 Warning
The driver bears full responsibility
for the parking manoeuvre.
Always check the surrounding
area when driving backwards or
forwards while using parking
assist system.
The front-rear parking assist
measures the distance between the vehicle and obstacles in front and
behind the vehicle. It informs and
warns the driver via acoustic signals
and display indication.
It uses two different acoustic warning
signals for the front and rear
monitoring areas, each with a
different tone frequency.
The system has four ultrasonic
parking sensors each in the rear and front bumper.
Activation
When reverse gear is engaged, the
front and rear parking assist is ready
to operate.
The system is also activated
automatically at a speed up to
11 km/h.An illuminated LED in the parking
assist button r indicates that the
system is ready to operate.
If r is switched off within an ignition
cycle, the front parking assist is
deactivated. If vehicle speed has
exceeded 25 km/h beforehand,
parking assist will be reactivated when speed drops below 11 km/h.
Indication
The system warns the driver with
acoustic signals against potentially
hazardous obstacles in front of the
vehicle in a distance range up to
80 cm and against potentially
Driving and operating163hazardous obstacles behind the
vehicle in a distance range up to 1.5
metres.
Depending on which side of the
vehicle is closer to an obstacle, you
will hear acoustic warning signals in
the vehicle on the respective side.
The interval between the sounds
becomes shorter as the vehicle gets closer to that obstacle. When the
distance is less than approx. 30 cm, the sound is continuous.
Additionally, the distance to rear and
front obstacles is displayed by
changing distance lines in the Driver
Information Centre with Uplevel
display 3 97 or, depending on the
version, on the Colour-Info-Display
3 101.
The distance indication can be
inhibited by vehicle messages with a
higher priority. After dismissing the message, distance indication
appears again.
The distance to obstacles is shown on the Colour-Info-Display by coloured
zones in front of or behind the vehicle
3 101.
Deactivation
The rear parking assist automatically
switches off when reverse gear is
disengaged.
The front parking assist is deactivated
automatically at a speed above
11 km/h.
Manual deactivation is also possible
by pressing the parking assist button
r .
164Driving and operatingWhen the system is deactivated, the
LED in the button extinguishes and, if
manually deactivated, Park Assist
Off pops-up in the Driver Information
Centre.
After a manual deactivation, the front- rear parking assist is activated again
if r is pressed or if reverse gear is
engaged.
The complete system can be
manually deactivated in the vehicle personalisation menu in the
Info-Display. It remains deactivated
during the ignition cycle or until
activation in personalisation menu
again. Vehicle personalisation 3 106.
Fault
In the event of a fault or if the system
does not work temporarily, e.g.
because of high external noise level
or other interference factors, a
message pops-up in the Driver
Information Centre.
Vehicle messages 3 103.Advanced parking assist9 Warning
The driver bears full responsibility
for accepting the parking slot
suggested by the system and the
parking manoeuvre.
Always check the surrounding
area in all directions when using
the advanced parking assist.
The advanced parking assist
measures a suitable parking slot
while passing, calculates the
trajectory and automatically steers
the vehicle into a parallel or
perpendicular parking slot.
Instructions are given in the Driver
Information Centre 3 97 or,
depending on the version, on the
Colour-Info-Display 3 101 , supported
by acoustic signals.
The driver must control acceleration,
braking and gear shifting, while
steering is done automatically.Advanced parking assist is always
combined with front-rear parking
assist. Both systems use the same
sensors in the front and rear bumper.
Parking assist button D and
operation logic
Advanced parking assist and front-
rear parking assist both use the same button for activation and deactivation:
A brief press of D activates or
deactivates the parking assist.
A long press of D (approx.
one second) activates or deactivates the advanced parking assist, see
separate description below.
Driving and operating165Button logic operates the systems by
pressing D as follows:
● If only front-rear parking assist is active, a brief press deactivates
front-rear parking assist.
● If only front-rear parking assist is active, a long press activates
advanced parking assist.
● If only advanced parking assist is
active and the system is in
parking slot searching mode, a
brief press activates front-rear
parking assist.
● If only advanced parking assist is
active and the system is in park
guiding mode, a brief press
deactivates advanced parking
assist.
● If advanced parking assist is active, a long press deactivates
advanced parking assist and front-rear parking assist.● If forward gear or neutral is selected, a brief press activates
or deactivates front parking
assist.
● If reverse gear is selected, a brief
press activates or deactivates
front and rear parking assist.
Activation of front-rear parking assist
When reverse gear is engaged, the
front and rear parking assist is ready
to operate.
The system is also activated
automatically at a speed up to
11 km/h.An illuminated LED in the parking
assist button D indicates that the
system is ready to operate.
If D is switched off within an ignition
cycle, the front parking assist is
deactivated. If vehicle speed has
exceeded 25 km/h beforehand,
parking assist will be reactivated when speed drops below 11 km/h.
Indication
The system warns the driver with
acoustic signals against potentially
hazardous obstacles behind the
vehicle in a distance range up to
1.5 metres and in front up to 80 cm.
Depending on which side of the
vehicle is closer to an obstacle, you
will hear acoustic warning signals in
the vehicle on the respective side.
The interval between the sounds
becomes shorter as the vehicle gets closer to that obstacle. When the
distance is less than approx. 30 cm, the sound is continuous.
Additionally, the distance to rear and
front obstacles is displayed by
changing distance lines in the Driver
166Driving and operatingInformation Centre 3 97 or,
depending on the version, on the
Colour-Info-Display 3 101.
The distance to rear and front
obstacles is displayed by changing
distance lines in the Driver
Information Centre 3 97.
The distance indication can be
inhibited by vehicle messages with a higher priority. After approving the
message by pressing SET/CLR on
the turn signal lever, distance
indication appears again.
The distance to obstacles is shown on the Colour-Info-Display by coloured
zones in front of or behind the vehicle
3 101.
Deactivation of front-rear parking
assist
The rear parking assist automatically
switches off when reverse gear is
disengaged.
The front parking assist is deactivated
automatically at a speed above
11 km/h.
Manual deactivation is also possible by pressing the parking assist button
D briefly.
When the system is deactivated
manually, the LED in the button
extinguishes and Park Assist Off
pops-up in the Driver Information
Centre.
After a manual deactivation, the front- rear parking assist is activated again
if D is pressed briefly or if reverse
gear is engaged.
The complete system can be
manually deactivated in the vehicle
personalisation menu in the
Info-Display. It remains deactivated
during the ignition cycle or until
activation in personalisation menu
again. Vehicle personalisation 3 106.
Activation of advanced parking assist
Advanced parking assist can only be
activated when driving forwards.
168Driving and operating
Select parallel or perpendicular
parking slot by tapping the respective icon on the display.
Select parking side by tapping the
respective icon on the display.
When a slot is detected, a visual
feedback on the Colour-Info-Display
and an acoustic signal is given.
If the driver does not stop the vehicle after a parking slot is proposed, the
system starts to search for another
suitable parking slot.Park guiding mode
The parking slot suggestion of the system is accepted when the vehicle
is stopped by the driver within
10 metres for parallel parking slots or
six metres for perpendicular parking
slots after the Stop message is given.
The system calculates the optimal
path into the parking slot.
A brief vibration in the steering wheel
after engaging reverse gear indicates
that the steering is controlled by the
system. Then the vehicle is steered into the slot automatically by giving
the driver detailed instructions for
braking, accelerating and gear
shifting. The driver must keep hands
away from the steering wheel.Always pay attention to the sound of
the front-rear parking assist.
Continuous sound indicates that the
distance to an obstacle is less than
approx. 30 cm.
If, for any reason, the driver must take over control of the steering, hold the
steering wheel only at the outer edge. Automatic steering is cancelled in thisevent.Display indication
The instructions on the display show:
● General hints and warning messages.
● A hint when driving faster than 30 km/h during parking slot
searching mode, or 8 km/h in
guiding mode.
● The demand to stop the vehicle, when a parking slot is detected.
● The direction of driving during the
parking manoeuvre.
● The demand to shift into reverse or first gear.
170Driving and operatingCaution
Performance of the system can bereduced when sensors are
covered, e.g. by ice or snow.
Performance of the parking assist
system can be reduced due to
heavy loading.
Special conditions apply if there
are taller vehicles in the vicinity
(e.g. off-road vehicles, mini vans,
vans). Object identification and correct distance indication in the
upper part of these vehicles
cannot be guaranteed.
Objects with a very small reflection
cross-section, e.g. objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist systems do not
detect objects outside the
detection range.
Note
It is possible that the sensor detects a non-existing object caused by
echo disturbance from external
acoustic noise or mechanical
misalignments (sporadic false
warnings may occur).
Make sure that the front number
plate is properly mounted (not bent
and no gaps to the bumper on the left
or right side) and the sensors are
firmly in place.
Advanced parking assist system
may not respond to changes in the
available parking space after
initiating a parking manoeuvre. The
system may recognize an entry, a
gateway, a courtyard or even a crossing as a parking slot. After
selecting reverse gear the system
will start a parking manoeuvre. Take care regarding the availability of the
suggested parking slot.
Surface irregularities, e.g. on construction zones, are not detected
by the system. The driver accepts
responsibility.
Note
If engaging a forward gear and
exceeding a certain speed, the
parking assist will be deactivated
when the rear carrier system is
extended.If engaging reverse for the first time,
the parking assist will detect the rear carrier system and provide a buzzing
sound. Press r or D briefly to
deactivate the parking assist.
Note
After production, the system
requires a calibration. For optimal
parking guidance, a driving distance
of at least 10 km, including a number of bends, is required.
Side blind spot alert The Side blind spot alert system
detects and reports objects on either
side of the vehicle, within a specified
"blind spot" zone. The system
displays a visual alert in each exterior
mirror, when detecting objects that
may not be visible in the interior and
exterior mirrors.
Side blind spot alert uses some of the advanced parking assist sensors
which are located in the front and rear
bumper on both sides of the vehicle.
172Driving and operatingFault
Occasional missed alerts can occur
under normal circumstances and will
increase in wet conditions.
Side blind spot alert does not operate when the left or right corners of the
rear bumper are covered with mud,
dirt, snow, ice, slush, or in heavy
rainstorms. Cleaning instructions
3 233.
In the event of a fault in the system or
if the system does not work due to
temporary conditions, a message is
displayed in the Driver Information
Centre. Seek the assistance of a
workshop.
Rear view camera
The rear view camera assists the
driver when reversing by displaying a
view of the area behind the vehicle.
The view of the camera is displayed
in the Colour-Info-Display.9 Warning
The rear view camera does not
replace driver vision. Note that
objects that are outside the
camera's field of view and the
advanced parking assist sensors,
e.g. below the bumper or
underneath the vehicle, are not
displayed.
Do not reverse the vehicle by only looking at the Info-Display and
check the surrounding area
behind and around the vehicle
before reversing.
Activation
Rear view camera is automatically
activated when reverse gear is
engaged.
Functionality
The camera is mounted between the
number plate lights and has a viewing angle of 130°.