Driving and operating171pedestrian protection, automatic
braking can also occur when a
pedestrian ahead is detected,
indicated by the pedestrian ahead
indicator 7.
The system operates up to a speed of
80 km/h.
Below a speed of 40 km/h the system can apply full braking.
Emergency automatic braking may slow the vehicle to a complete stop to
try to avoid a potential crash. If this
happens, emergency automatic
braking may engage the electric
parking brake to hold the vehicle at a
stop. To release, push the electric
parking brake switch or firmly depress the accelerator pedal.9 Warning
Emergency automatic braking is
an emergency crash preparation
feature and is not designed to
avoid crashes. Do not rely on the
system to brake the vehicle.
Emergency automatic braking will
not brake outside of its operating speed range and only responds to
detected vehicles.
Forward looking brake assist
In addition to the brake preparation
system and emergency automatic
braking, the forward looking brake
assist function makes the brake assist more sensitive. Therefore,
depressing the brake pedal less
strongly results in immediate hard
braking. This function helps the driver
brake quicker and harder before an
imminent collision.
The system operates up to a speed of 80 km/h.
9 Warning
Active emergency braking is not
designed to apply hard
autonomous braking or to
automatically avoid a collision. It is designed to reduce the vehicle
speed before a collision. It may not
react to animals. After a sudden
lane change, the system needs a
certain time to detect the next
preceding vehicle.
The complete attention of the
driver is always required while
driving. The driver must always be
ready to take action and apply the brakes and steer to avoid
collisions.
Intelligent brake assist
Intelligent brake assist may activate
when the brake pedal is applied
quickly by providing a boost to
braking based on the speed of
approach and distance to a vehicle
ahead.
Minor brake pedal pulsations or pedal movement during this time are normal and the brake pedal should continue
to be applied as required. Intelligent
brake assist will automatically
disengage only when the brake pedal is released.
172Driving and operating9Warning
Intelligent brake assist may
increase vehicle braking in
situations when it may not be
necessary. You could block the
flow of traffic. If this occurs, take
your foot off the brake pedal and
then apply the brakes as needed.
Front pedestrian protection
Front pedestrian protection 3 172.
Deactivation Active emergency braking can be
deactivated in the personalisation
menu in the Info Display 3 91.
If deactivated, a message is
displayed in the Driver Information
Centre.
The system is reactivated the next time the vehicle is switched on.
System limitations In some cases, the active emergencybraking system may provide
automatic braking in situations that
seem to be unnecessary, for instance
in parking garages, due to traffic signs in a curve or due to vehicles in
another lane. This is normal
operation, the vehicle does not need
a service. Firmly apply the accelerator
pedal if the situation and
surroundings permit to override the
automatic braking.
In the following cases, active
emergency braking performance is
limited:
● When driving on winding or hilly roads.
● When not all vehicles are detected, especially vehicles witha trailer, tractors, muddy
vehicles, etc.
● When detecting a vehicle when weather limits visibility, such as in
fog, rain, or snow.
● During nighttime driving.
● When weather limits visibility, such as fog, rain, or snow.
● When the sensor in the windscreen is blocked by snow,
ice, slush, mud, dirt, windscreen
damage or affected by foreign
items, e.g. stickers.To avoid malfunction keep the areas
of the camera sensor in the
windscreen always clear of dirt, dust,
ice and snow.
Complete attention is always required while driving, and you should beready to take action and apply the
brakes and / or steer the vehicle to
avoid crashes.
Fault
In case the system requires a service, a message is displayed in the Driver
Information Centre.
If the system does not work as it
should do, vehicle messages are
displayed in the Driver Information
Centre.
Vehicle messages 3 89.
Front pedestrian protection
The front pedestrian protection
system may help avoid or reduce the
harm caused by front-end crashes
with nearby pedestrians when driving in a forward gear.
174Driving and operatingAutomatic braking
If a crash into a pedestrian directly ahead is imminent and the brakes
have not been applied, the braking
strength is automatically adapted.
This can help to avoid some very low speed pedestrian crashes or reduce
pedestrian injury.
Automatic braking levels may be
reduced under certain conditions,
such as higher speeds.
If this happens, automatic braking
may engage the electric parking
brake to hold the vehicle at a stop.
Release the electric parking brake. A
firm press of the accelerator pedal will also release automatic braking and
the electric parking brake 3 159.
This system includes intelligent brake
assist, and the emergency automatic
braking system may also respond to
pedestrians.
Active emergency braking 3 170.
Automatic braking can be disabled
through vehicle personalisation 3 91.General information9 Warning
The driver must always be ready
to take action and apply the brakes and steer to avoid collisions.
9 Warning
Front pedestrian braking may alert
or automatically brake the vehicle
suddenly in situations where it is
unexpected and undesired. It
could falsely alert or brake for
objects similar in shape or size to
pedestrians, including shadows.
This is normal operation and the
vehicle does not need a service.
To override Automatic braking,
firmly depress the accelerator
pedal, if it is safe to do so.
System limitations
In the following cases, front
pedestrian protection may not detect
a pedestrian ahead or sensor
performance is limited:
● When vehicle speed is out of range from 8 km/h to 80 km/h .
● When the distance to an pedestrian ahead is more than
40 m.
● When weather limits visibility, such as fog, rain, or snow.
● During nighttime driving.
● When the sensor in the windscreen is blocked by snow,
ice, slush, mud, dirt, windscreen
damage or affected by foreign
items, e.g. stickers.
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.
Driving and operating175The 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 three ultrasonic
parking sensors in the rear bumper.
Activation
After the vehicle is switched on, the
rear parking assist is activated.
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
50 cm while a forward gear is
engaged, or up to 1.5 m while reverse gear is engaged.
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
obstacles is displayed by changing
distance lines in the Driver
Information Centre 3 82.
The distance indication can be
inhibited by vehicle messages with a
higher priority. After dismissing the
message, distance indication
appears again.Deactivation
Press parking assist button r to
deactivate, 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 3 seconds
and then extinguishes. A message is
indicated in the Driver Information
Centre.
176Driving and operatingFront-rear parking assist9Warning
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 in front bumper and three ultrasonic parking sensors in
the rear bumper.
Activation
The system is 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, the front parking
assist is deactivated until the vehicle
is switched on again.
If vehicle speed has exceeded
25 km/h beforehand, parking assist
will be reactivated when speed drops below 11 km/h.
When the system is deactivated, the
LED in the button extinguishes and
Park Assist off pops-up in the Driver
Information Centre.
Driving and operating177Indication
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
50 cm while a forward gear is
engaged, or up to 1.5 m while reverse
gear is engaged.
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 82 or,
depending on the version, on the Info Display 3 85.
The distance indication can be
inhibited by vehicle messages with a higher priority. After dismissing themessage distance indication appears again.
Deactivation
The system is deactivated
automatically when vehicle speed
exceeds 11 km/h.
Manual deactivation is also possible
by pressing the parking assist button
r .
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 r is pressed or if reverse gear is
engaged.
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 89.
178Driving and operatingAdvanced parking assist9Warning
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 82 or,
depending on the version, on the Info Display 3 85, 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.
The system has six ultrasonic parking
sensors in the front bumper and five
ultrasonic parking sensors in the rear
bumper.
Activation of advanced parking assist Advanced parking assist can only be
activated when driving forwards.When searching for a parking slot, the system is ready to operate with a
short press of (.
The system recognises and
memorises 10 m for parallel parking
slots or 6 m for perpendicular parking
slots in the parking assist mode.
The system can only be activated at
a speed up to 30 km/h and the system
searches for a parking slot at a speed up to 30 km/h.
The maximum allowed parallel
distance between the vehicle and a
row of parked cars is 1.8 m for parallel
parking and 2.5 m for perpendicular
parking.
Driving and operating179FunctionalityParking slot searching mode,
indication in the Info Display
Select parallel or perpendicular
parking slot by touching the
respective icon on the Info Display.
Select parking side by touching the respective icon on the Info Display.
When a slot is detected, a visual
feedback on the 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 m
for parallel parking slots or 6 m 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