164Driving and operatingESC and TC are also reactivated the
next time the ignition is switched on.
Fault
If there is a fault in the system, the control indicator b illuminates
continuously and a message appears
in the Driver Information Centre. The
system is not operational.
Have the cause of the fault remedied
by a workshop.
Descent control system
The descent control system allows
the vehicle to travel at a low speed
without depressing the brake pedal.
The vehicle will automatically
decelerate to a low speed and remain at that speed when the system is
activated. Some noise or vibration
from the brake system may be
apparent when the system is active.Caution
Use only when descending steep
grades while driving off-road. Do
not use when driving on normal
road surfaces. Unnecessary
usage of the DCS function, such
as while driving on normal roads,
may damage the brake system
and the ESC function.
Activation
Notice
If hill descent control is active, active emergency braking is automatically
deactivated.
The systems is only available for
slopes greater than 5%.
At speeds below approx. 30 mph,
press ò. The system can also be
activated when the vehicle is
stationary with the engine running. The control indicator ò in the
instrument cluster is illuminated in
green to show the system is
activated.
When the vehicles starts its descent, the system controls the speed of the
vehicle; accelerator and brake pedals can be released.
● If the gearbox is in first or second
gear, the speed decreases andthe control indicator in the
instrument cluster flashes
rapidly.
● If the gearbox is in neutral or the clutch pedal is released, the
speed decreases and the control
indicator in the instrument cluster
flashes slowly.
If the system is operating, the brake
lights automatically come on.
If the speed exceeds 18 mph,
regulation is paused. The ò indicator
light in the instrument cluster changes
to grey. However, the LED of the ò
button is still illuminated. Regulation
166Driving and operatingA LED illuminates and a status
message appears in the Driver
Information Centre to confirm the
chosen mode.
ESC off mode 9
The ESC and Traction Control are
deactivated in this mode.
An LED in the button a illuminates.
ESC and Traction Control are
reactivated automatically from
30 mph or everytime the ignition is
switched on.
Standard mode 2
This mode is calibrated for a low level of wheel spin, based on the different
types of grip generally encountered in
normal day to day driving.
Everytime the ignition is switched off,
the system is automatically reset to
this mode.
Snow mode 3
This mode adapts to the grip
conditions encountered by each
wheel when starting.When advancing, the system
optimises wheel spin to guarantee the
best acceleration based on the
available traction. Recommended in
cases of deep snow and steep
inclines.
This mode is active up to a speed of
30 mph.
Mud mode 4
This mode allows considerable wheel spin at start-up for the wheel with the
least grip, this removes mud and re-
establishes traction.
Simultaneously, the wheel with the
most grip is provided with the most
torque possible.
This mode is active up to a speed of 50 mph.
Sand mode 1
This mode allows a small amount of
simultaneous wheel spin on the two
drive wheels, enabling the vehicle to
advance and reduce the risk of
sinking.
This mode is active up to a speed of
75 mph.Caution
Do not use the other modes on
sand as the vehicle may become
stuck.
Driving and operating169Press MEM on the steering wheel to
request saving of the suggested
speed.
Press MEM on the steering wheel
once more to confirm and save the
new speed setting.
This speed is the new value for the
cruise control.
Exceeding the set speed
Vehicle speed can be increased by
depressing the accelerator pedal.
When the accelerator pedal is
released, the previously stored speed
is resumed.
Deactivation of the functionality
Press Ñ, cruise control is in pause
mode and a message is displayed.
The vehicle is driven without cruise
control.
Cruise control is deactivated, but not
switched off. Last stored speed
remains in memory for later speed
resume.Cruise control is deactivated
automatically:
● The brake pedal is depressed.
● The clutch pedal is depressed.
● Vehicle speed is below 25 mph.
● The Traction Control system or Electronic Stability Control is
operating.
● The selector lever is in N
(automatic transmission) / the first or second gear (manual
transmission).
Resume stored speed
Press thumb wheel to RES/+ at a
speed above 25 mph. The stored
speed will be obtained.
Switching off the system
Press m, the cruise control mode is
deselected and the cruise control
indication extinguishes in the Driver
Information Centre.
Pressing ß to activate the speed
limiter deactivates cruise control.
Switching off the ignition cancels any
programmed speed value.Fault
In the event of a cruise control fault, the speed is cleared resulting in
flashing of the dashes.
The cruise control may not operate
correctly if traffic signs do not comply with the Vienna Convention on Road
Signs and Signals.
Speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum speed.
The maximum speed can be set at
speeds above 18 mph.
The driver can accelerate the vehicle
up to the preset speed. Deviations
from the limited speed may occur
when driving downhill.
The preset speed can be exceeded
temporarily by pressing the
accelerator pedal firmly.
The status and preset speed limit are
displayed in the Driver Information
Centre.
Driving and operating171assistant. The detected speed limit
can be used as new value for the
speed limiter.
Using a camera at the top of the windscreen, this system detects and
reads speed limit and end of speed
limit signs. The system also takes account of information on speed limits
from the navigation map data.
The function can be activated or
deactivated in the personalisation
menu 3 116.
If the speed limiter is active, the
recognised speed limit will be
displayed in the Driver Information
Centre and MEM illuminates.
The displayed information depends
on the Driver Information Centre
version.
In the Driver Information Centre,
speed limit sign is shown and MEM
illuminates for a few seconds.
Press MEM on the steering wheel to
request saving of the suggested
speed.
Press MEM on the steering wheel
once more to confirm and save the
new speed setting.This speed is the new value for the
speed limiter.
Exceeding the speed limitIn the event of an emergency, it is possible to exceed the speed limit by
depressing the accelerator pedal
firmly nearly to the final point.
Release the accelerator pedal and
the speed limiter function is
reactivated once a speed lower than
the limit speed is obtained.
Deactivation of the functionality
Press Ñ, speed limiter is in pause
mode and a message is displayed.
The vehicle is driven without speed
limit.
Speed limiter is deactivated, but not
switched off. Last stored speed
remains in memory for later speed
resume.
Resume limit speed Press Ñ, the stored speed limit will be
obtained.Switching off the system
Press ß, the speed limiter mode is
deselected and the speed limit indication extinguishes in the Driver
Information Centre.
Pressing m to activate cruise control
deactivates speed limiter.
The preset speed remains in the
memory when the ignition is switched
off.
Fault
In the event of a speed limiter fault,
the speed is cleared resulting in
flashing of the dashes.
The speed limiter may not operate correctly if traffic signs do not comply
with the Vienna Convention on Road
Signs and Signals.
Adaptive cruise control
The adaptive cruise control is an
enhancement to the conventional
cruise control with the additional
feature of maintaining a certain
following distance to the vehicle
ahead. It uses a camera at the top of
Driving and operating175start moving. Be always prepared
to manually apply the brake to hold the vehicle stationary.
Do not leave the vehicle while it is
being held at a stop by adaptive
cruise control. Always move
selector lever to park position P
and switch off the ignition before
leaving the vehicle.
Setting the following distance
When adaptive cruise control detects
a slower moving vehicle in the driving path, it will adjust the vehicle speed tomaintain the following distance
selected by the driver.
The following distance can be set to
close (1 bar), normal (2 bars) or far
(3 bars).
If the engine is running and the
adaptive cruise control is enabled
(grey), you can modify the following
distance setting:
Press Ö, the current setting is shown
in the Driver Information Centre.
Press Ö again to change the following
distance: The new setting is
displayed in the Driver Information Centre.
The selected following distance is
indicated by full bars in the adaptive
cruise control page.9 Warning
The driver accepts full
responsibility for the appropriate
following distance based on traffic, weather and visibility conditions.
Following distance must be
adjusted or the system switched
off when required by the prevailing
conditions.
Detecting the vehicle ahead
If the system detects a vehicle in the
driving path, the adaptive cruise
control symbol displayed in the Driver
Information Centre changes: - is
changed to w.
Deactivation of the functionality
Press Ñ, the adaptive cruise control
is in pause mode and a message is
displayed. The vehicle is driven
without adaptive cruise control.
The adaptive cruise control is
deactivated, but not disabled. The
last stored set speed remains in
memory for later usage.
The adaptive cruise control is
deactivated automatically when:
● The brake pedal is depressed.
● The vehicle accelerates above 112 mph or slows down below
19 mph.
176Driving and operating● The electric parking brake isapplied.
● The Traction Control system or Electronic Stability Control is
deactivated or operating.
● The selector lever of automatic transmissions is neither in D nor
in M.
● A fault is detected in the Electronic Stability Control.
Switching off the system
Press C, the adaptive cruise control
mode is disabled and the adaptive
cruise control indication extinguishes
in the Driver Information Centre.
Pressing ß to activate the speed
limiter deactivates adaptive cruise
control.
Switching off the ignition deletes the
stored set speed.
Driver's attention ● Use the adaptive cruise control carefully on bends or mountain
roads, as it can lose the vehicle
ahead and needs time to detect it
again.● Do not use the system on slippery roads as it can create
rapid changes in tyre traction
(wheel spinning), so that you
could lose control of the vehicle.
● Do not use the system when the spare wheel is in use.
System limits9 Warning
The system's automatic brake
force does not permit hard braking and the braking level may not be
sufficient to avoid a collision.
● After a sudden lane change, the system needs a certain time to
detect the next preceding
vehicle. So if a new vehicle is
detected, the system may
accelerate instead of braking.
● The adaptive cruise control does ignore the oncoming traffic.
● The adaptive cruise control does not consider pedestrians and
animals for braking and driving
off.
● The adaptive cruise control considers stopped vehicles only
at low speed.
● Do not use the adaptive cruise control when towing a trailer.
● Do not use the adaptive cruise control on roads with an incline ofmore than 10%.
Bends
The adaptive cruise control calculates
a predicted path based on the
centrifugal force. This predicted path
considers the current bend
characteristic, but cannot consider a
future bend change. The system may lose the current vehicle ahead or
consider a vehicle which is not in the
actual lane. This can happen when
entering or exiting a bend or if the
bend gets stronger or weaker. If it no
180Driving and operatingForward collision alert 3 178
Front pedestrian protection 3 182
The feature uses various inputs (e.g.
camera sensor, brake pressure,
vehicle speed) to calculate the
probability of a frontal collision.9 Warning
This system is not intended to
replace the driver responsibility for driving the vehicle and looking
ahead. Its function is limited to
supplemental use only to reduce
the vehicle speed before a
collision.
The system may not react to
animals. After a sudden lane
change, the system needs a
certain time to detect the next
preceding vehicle.
The driver must always be ready
to take action and apply the brakes and steer to avoid collisions.
Functionality
Active emergency braking is
equipped with a front camera and
operates in forward gear above
walking speed up to 53 mph. The
system detects stationary vehicles
only if the speed does not exceed
50 mph.
A precondition is that active
emergency braking is not deactivated
in the vehicle personalisation menu
3 116.
If deactivated, m illuminates in the
instrument cluster and a warning
message is displayed in the Driver
Information Centre
If the system has been deactivated
manually, it is reactivated
automatically the next time the
ignition is switched on.
The system includes: ● emergency automatic braking● forward collision alert
● front pedestrian protectionEmergency automatic braking
After activation of brake preparation
system and just before the imminent
collision, this function automatically
applies limited braking to reduce the
impact speed of the collision or
prohibit a crash.
If active emergency braking is
applied, m flashes in the instrument
cluster.
Depending on the situation, the
vehicle may automatically brake
moderately or hard.
Front automatic braking can only
occur if a vehicle or a pedestrian
ahead is detected.
Forward collision alert 3 178
Front pedestrian protection 3 182
Below a speed of 19 mph, emergency automatic braking may slow down thevehicle to a complete stop. If the
speed exceeds 19 mph, emergency automatic braking reduces the speed.
However, the driver must apply the
brake.
Driving and operating183● the sensor in the windscreen isblocked by snow, ice, slush, mud,dirt etc.
● the windscreen is damaged or affected by foreign objects, e.g.
stickers
Parking assist
General information When attaching a trailer or bicycle
carrier to the trailer hitch, the parking
assist is deactivated.9 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.
Rear parking assist
The system warns the driver with
acoustic signals against potentially
hazardous obstacles behind the
vehicle in a distance range up to
50 cm while reverse gear is engaged.
The system operates with ultrasonic
parking sensors in the rear bumper.
Activation
Rear parking assist is activated when
reverse gear is engaged and ignition
is switched on. This is confirmed by
an accoustic chime.Graphic Info Display: The system is
ready to operate when the LED in the
parking assist button ¼ is not
illuminated.
Colour Info Display: Activate the
parking assist in the vehicle
personalisation 3 116.
Indication
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.