154Driving and operatingSwitching on
Press m; control indicator m in
instrument cluster illuminates white.
Activation Accelerate to the desired speed and
turn thumb wheel to SET/-, the
current speed is stored and
maintained. Control indicator m in
instrument cluster illuminates green. Set speed is indicated on the display.
Accelerator pedal can be released.
Vehicle speed can be increased by
depressing the accelerator pedal. When the accelerator pedal is
released, the previously stored speed is resumed.
Cruise control remains activated
while gearshifting.
Increase speed
With cruise control active, hold thumb
wheel turned to RES/+ or briefly turn
to RES/+ repeatedly: speed
increases continuously or in small
increments.
Alternatively accelerate to the desired speed and store by turning to SET/-.
Reduce speed
With cruise control active, hold thumb
wheel turned to SET/- or briefly turn to
SET/- repeatedly: speed decreases
continuously or in small increments.
Deactivation
Press y; control indicator m in
instrument cluster illuminates white. Cruise control is deactivated. Last
stored speed remains in memory for
later speed resume.
Automatic deactivation: ● Vehicle speed is below approx. 20 mph.
● Vehicle speed drops more than 15 mph below the set speed.
● The brake pedal is depressed.
● The clutch pedal is depressed for
a few seconds.
● The selector lever is in N.
● Engine speed is in a very low range.
● The Traction Control system or Electronic Stability Control is
operating.
● Parking brake is applied.
● Simultaneous pressing RES/+
and brake pedal deactivates
cruise control and will delete
stored speed.
Driving and operating155Resume stored speed
Turn thumb wheel to RES/+ at a
speed above 20 mph. The stored
speed will be obtained.
Switching off
Press m, control indicator m in
instrument cluster extinguishes. The
stored speed is deleted.
Pressing L to activate the speed
limiter or switching off the ignition also switches off cruise control and
deletes the stored speed.
Speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum
speed.
The maximum speed can be set at
speeds above 15 mph up to
125 mph.
The driver can only accelerate up to
the preset speed. Deviations from the
limited speed may occur when driving downhill.The preset speed limit is displayed in
the Driver Information Centre when
the system is active.
Activation
Press L. If cruise control has been
activated before, it is switched off when speed limiter is activated and
control indicator m extinguishes.
Set speed limit Accelerate to the desired speed and
briefly turn thumb wheel to SET/-: the
current speed is stored as maximum speed. Speed limit is displayed in the
Driver Information Centre.
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.
Driving and operating157Press V, the current setting is shown
on the Driver Information Centre.
Press V repeatedly to change the
alert sensitivity. The selected setting
is also displayed in the Driver
Information Centre.
Alerting the driver
The vehicle ahead control indicator A illuminates green in the instrument
cluster when the system has detected
a vehicle in the driving path.
Caution
The colour lighting of this control
indicator does not correspond to
local traffic laws on following
distance. The driver bears full
responsibility for maintaining safe
following distance according to
applicable traffic rules, weather
and road conditions etc. at all
times.
When the time to a potential collision
with a vehicle in front gets too small
and a collision is imminent, the
collision alert symbol pops-up in the
Driver Information Centre and the
driver gets notified by a flashing red
LED stripe which is projected on the
windscreen in the driver's field of
view.
Simultaneously a warning chime sounds. Depress the brake pedal and
steer the vehicle, if it is required by the
situation.
Deactivation The system can be deactivated.
Press V repeatedly until the following
message appears in the Driver
Information Centre.
158Driving and operating
If the forward collision alert was
deactivated, alert sensitivity is set to
"medium" when ignition is switched on next time.
The settings "near", "medium" or "far" will be stored when the ignition is
switched off.
General information
9 Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching a vehicle ahead too
rapidly, it may not provide you
enough time to avoid a collision.
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the
brakes.
System limitations
The system is designed to warn of vehicles only, but may react also to
other objects.
In the following cases, forward
collision alert may not detect a vehicle ahead or sensor performance is
limited:
● on winding roads
● when weather limits visibility, e.g.
fog, rain, or snow
● when the sensor is blocked by snow, ice, slush, mud, dirt,
windscreen damage or affected
by foreign items, e.g. stickers
Following distance
indication
The following distance indication
displays the distance to a preceding
moving vehicle. The front camera in
the windscreen is used to detect the
distance of a vehicle directly ahead in
the vehicle's path. It is active at
speeds above 25 mph.
When a preceding vehicle is detected
ahead, the distance is indicated in
seconds, displayed on a page in the
Driver Information Centre 3 96 . Press
MENU on the turn signal lever to
select ? and turn the adjuster
wheel to choose following distance
indication page.
Driving and operating159
The minimum indicated distance is
0.5 seconds.
If there is no vehicle ahead or the vehicle ahead is out of range, two
dashes will be displayed: -.- sec.
Parking assist Rear parking assist
9 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 signals
and display indication.
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
approx. 30 cm, the sound is
continuous.
Additionally, the distance to rear obstacles is displayed by changing
distance lines in the Driver
Information Centre 3 96 or,
depending on the version, on the Colour-Info-Display 3 100.
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.
160Driving and operatingDeactivation
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 then extinguishes.
Control indicator r illuminates in
the instrument cluster 3 93 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 by giving 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
The system is activated automatically
at a speed up to 7 mph.
Driving and operating161
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 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 the
vehicle 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 rear and
front obstacles is displayed by
changing distance lines in the Driver
Information Centre 3 96 or,
depending on the version, on the
Colour-Info-Display 3 100.
The distance indication can be
inhibited by vehicle messages with a
higher priority. After dismissing the message distance indication appears again.
162Driving and operatingThe distance to obstacles is shown onthe Colour-Info-Display by coloured
zones in front of or behind the vehicle
3 100.
Deactivation
The system is deactivated
automatically when vehicle speed
exceeds 7 mph.
Manual deactivation is also possible by pressing the parking assist button
r .
When 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.
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 3 105.When using the trailer hitch change
the configuration settings in the
vehicle personalisation menu in the
Info-Display. Vehicle personalisation
3 105.
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 3 102.
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 96 or,
depending on the version, on the
Colour-Info-Display 3 100 , 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.