142Driving and operating
Change speed limit
With speed limiter active, turn thumb
wheel to RES/+ to increase or SET/-
to decrease the desired maximum
speed.
Exceeding the speed limit
When exceeding the limited speed
without driver input, the speed will
flash in the Driver Information Centre
and a chime sounds during this
period.
In the event of an emergency, it is
possible to exceed the speed limit by
depressing the accelerator pedal
firmly nearly to the final point. In this
case no chime appears.
Release the accelerator pedal and
the speed limiter function is
reactivated once a speed lower than
the limit speed is obtained.
Deactivation Press y: speed limiter is deactivated
and the vehicle can be driven without speed limit.
The limited speed is stored.
Additionally, a corresponding
message appears on the Uplevel-
Display.
Resume limit speed Turn thumb wheel to RES/+. The
stored speed limit will be obtained.
Switching off
Press L, the speed limit indication in
the Driver Information Centre
extinguishes. The stored speed is
deleted.By pressing m to activate cruise
control, speed limiter is also
deactivated and the stored speed is
deleted.
By switching off the ignition, speed
limiter is also deactivated, but the
speed limit will be stored for next
speed limiter activation.
Parking assist
Rear parking assist9 Warning
It is the driver who bears full
responsibility for the parking
manoeuvre.
Always check the surrounding
area while reversing and using the rear parking assist system.
The rear parking assist makes
parking easier by measuring the
distance between the vehicle and
rear obstacles. It informs and warns
the driver by giving acoustic and
visual signals.
Driving and operating143
The system has four ultrasonic
parking sensors in the rear bumper.
Activation
When reverse gear is engaged, the
system is ready to operate
automatically.
An illuminated LED in the parking
assist button r indicates that the
system is ready to operate.
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. The interval between the
sounds becomes shorter as the
vehicle gets closer to that obstacle.
When the distance is less than
approximately 30 cm, the sound is continuous.
Additionally, the distance to rear
obstacles is displayed by changing
distance lines in the Driver
Information Centre 3 88 or,
depending on the version, on the Colour-Info-Display 3 93.
Deactivation
The system automatically switches
off when reverse gear is disengaged.
Manual deactivation is also possible
by pressing the parking assist button
r .
In both cases the LED in the button extinguishes.
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, the LED
in the button flashes for three
seconds and then extinguishes.
Control indicator r illuminates in
the instrument cluster 3 86 and a
message pops-up 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.
144Driving and operatingThe front-rear parking assist
measures the distance between the vehicle and obstacles in front and
behind the vehicle. It informs and
warns the driver by giving acoustic
signals and display indication.
The system has six ultrasonic parking
sensors in both the rear and front
bumper.
It uses two different acoustic warning
signals for the front and rear
monitoring areas, each with a
different tone frequency.
Front-rear parking assist is always
combined with advanced parking
assist, see "Advanced parking assist" section below.
Parking assist button D and
operation logic
Front-rear parking assist and
advanced 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.
Button 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.
Driving and operating145● If a forward gear or neutral isselected, a brief press activates
or deactivates only front parking
assist.
● If reverse gear is selected, a brief
press activates or deactivates
front and rear parking assist.
Activation
The system is activated automatically
at a speed up to 7 mph.
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 15 mph beforehand,
parking assist will be reactivated when speed drops below 7 mph.
When the system is deactivated, the
LED in the button extinguishes and
Park Assist Off pops-up in the Driver
Information Centre.
Indication
The system warns the driver with
acoustic signals against potentially
hazardous obstacles in front of thevehicle in a distance range up to 80
cm and against potentially hazardous
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 obstacles is shown in the Driver Information
Centre 3 88 or, depending on the
version, on the Colour-Info-Display
3 93.
The distance to a front and rear
obstacle is displayed by changing
distance lines in the Driver
Information Centre.
The distance indication can be
inhibited by vehicle messages with a
higher priority. After dismissing the
message distance indication appears again.
146Driving and operating
The distance to obstacles is shown onthe Colour-Info-Display by coloured
zones in front of or behind the vehicle
3 93.
Deactivation
The system is deactivated
automatically when vehicle speed
exceeds 7 mph.
Manual deactivation is also possible by pressing the parking assist button D .
When the system is deactivated, the
LED in the button extinguishes and
and, if manual deactivated, 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.
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 98.
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 95.
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 88 or,
depending on the version, on the
Colour-Info-Display 3 93, supported
by acoustic signals.
The driver must control acceleration,
braking and gearshifting, while
steering is done automatically.
Advanced parking assist can only be activated when driving forwards.
148Driving and operatingThe system can only be activated at
a speed up to 18 mph and the system searches for a parking slot at a speed
up to 18 mph.
The maximum allowed parallel
distance between the vehicle and a
row of parked cars is 1.8 metres for
parallel parking and 2.5 metres for
perpendicular parking.
FunctionalityParking slot searching mode
Indication in the Driver Information
Centre
Select parallel or perpendicular
parking slot in Driver Information
Centre by pressing SET/CLR.
The system is configured to detect parking slots by default on the
passenger side. To detect parking
slots on the driver side, switch on turn
signal indicator on the driver side.When a slot is detected, visual
feedback in the Driver Information
Centre and an acoustic signal are
given.
Indication in the Colour-Info-Display
Driving and operating149Select 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, visual
feedback on the Colour-Info-Display and an acoustic signal are 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 tenmetres 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 steeredinto the slot automatically by giving
the driver detailed instructions for
braking, accelerating and
gearshifting. 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 in the display show:
● general hints and warning messages
● a hint when driving faster than 18 mph during parking slot
searching mode, or 5 mph 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 gearshift rearwards or forwards
● the demand to accelerate or brake
● for some of the instructions a progress bar is shown in the
Driver Information Centre
● successful parking manoeuvre indicated by a pop-up symbol
and a chime,
● the cancelling of a parking manoeuvre
150Driving and operatingDisplay priorities
Advanced parking assist indication on the Driver Information Centre can beinhibited by vehicle messages with a
higher priority. After approving the
message by pressing SET/CLR on
the turn signal lever, advanced
parking assist instructions appear
again and the parking manoeuvre can
be continued.
Deactivation
The system is deactivated by:
● a long press of D
● parking manoeuvre successfully ended
● driving faster than 18 mph during
parking slot search
● driving faster than 5 mph during parking guidance
● driver interference on steering wheel detected
● exceeding the maximum number
of gear changes: eight parking
cycles when parallel parking or
five cycles when perpendicular
parking
● switching off the ignitionDeactivation by the driver or by the
system during manoeuvring will be indicated by Parking Deactivated on
the display. Additionally, an acoustic
signal sounds.
Fault
A message appears when:
● there is a fault in the system
● the driver did not successfully complete the parking manoeuvre
● the system is not operational
● any of the deactivation reasons described above apply
If an object is detected during parking instructions, Stop is indicated on the
display. Removing the object will
resume the parking manoeuvre. If the
object is not removed, the system will
be deactivated. A long press of D
will activate the system and search for
a new parking slot.Basic notes on parking assist
systems9 Warning
Under certain circumstances,
various reflective surfaces on
objects or clothing as well as
external noise sources may cause the system to fail to detect
obstacles.
Special attention must be paid to
low obstacles which can damage
the lower part of the bumper.
Caution
Performance of the system can be reduced 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