Driving and operating187Fault
In the event of a fault with the adaptive cruise control, a warning light is
illuminated and a message is
displayed in the instrument cluster,
accompanied by a warning chime.
The adaptive cruise control may not
operate correctly if traffic signs do not comply with the Vienna Convention
on Road Signs and Signals.
Have the system checked by a dealer
or a qualified workshop.
As a safety measure, do not use the
system if the brake lights are faulty.
Forward collision alert The forward collision alert may help toavoid or reduce the harm caused by
front-end crashes.
The forward collision alert uses the
front camera in the windscreen and a radar sensor in the front bumper to
detect a preceding vehicle directly
ahead, in your path.If a vehicle directly ahead is
approached too quickly, a warning
chime and alert in the Driver
Information Centre is provided.9 Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching a vehicle ahead too
rapidly, there may not be 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.
Activation
Forward collision alert detects
vehicles and operates automatically
at all speeds between 5 km/h and
85 km/h. The system detects
stationary vehicles if the speed does
not exceed 80 km/h.
Alerting the driver The driver is warned by following
alerts:
● Symbol I illuminates and a
warning message is displayed in
the Driver Information Centre
when the distance to the vehicle
ahead gets to small.
● Symbol I illuminates, a
warning message is displayed in the Driver Information Centre and a warning chime sounds, when a
collision is imminent and
immediate driver's action is
required.
188Driving and operating9Warning
Forward collision alert is just a
warning system and does not
apply the brakes. When
approaching a vehicle ahead too
rapidly, there may not be 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.
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.
Selecting the alert sensitivity
The alert sensitivity has to be set to
close, normal or distant in the vehicle personalisation menu 3 124.
The chosen setting will remain until it
is changed. The alert timing will vary
based on vehicle speed. The faster
the vehicle speed, the farther away
the alert will occur. Consider traffic
and weather conditions when
selecting the alert timing.
Deactivation The system can only be deactivated
by deactivating the active emergency
braking in the vehicle personalisation
3 124.
System limitations
Forward collision alert is designed to
warn on 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:
● driving on winding or hilly roads
● driving during nighttime
● weather limits visibility, such as fog, rain, or snow
● the sensor in the windscreen is blocked by snow, ice, slush, mud,dirt etc.
● the windscreen is damaged or affected by foreign objects, e.g.
stickers
Active emergency braking
Active emergency braking can help to reduce the damage and injury from
crashes with vehicles, pedestrians
and obstacles directly ahead, when a
collision can no longer be avoided
either by manual braking or by
steering. Before the active
emergency braking applies, the driver is warned by the forward collision
alert or the front pedestrian protection
alert.
Driving and operating189Forward collision alert 3 187
Front pedestrian protection 3 191
The feature uses various inputs (e.g.
camera sensor, radar 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 85 km/h. The
system detects stationary vehicles
only if the speed does not exceed
80 km/h. Pedestrians are detected
only if the speed does not exceed
60 km/h.
A precondition is that active
emergency braking is not deactivated
in the vehicle personalisation menu
3 124.
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, 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 3 187
Front pedestrian protection 3 191
Below a speed of 30 km/h,
emergency automatic braking may
slow down the vehicle to a complete
stop. If the speed exceeds 30 km/h,
emergency automatic braking
reduces the speed. However, the
driver must apply the brake.
190Driving and operatingEmergency automatic braking may
slow the vehicle to a complete stop to
try to avoid a potential crash. If the
vehicle comes to a complete stop,
automatic braking is maintained for
up to 2 seconds.
● Automatic transmission: If the vehicle comes to a completestop, keep the brake pedal
depressed to prevent the vehicle
from starting off again.
● Manual transmission: If the vehicle comes to a complete
stop, the engine may stall.
Operation of the function may be felt
by a slight vibration in the brake
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 and
pedestrians.
System limitations
In some cases, the active emergencybraking system may provide an
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
service. Firmly apply the accelerator
pedal to override the automatic
braking if the situation and the
surroundings permit.
In the following cases, active
emergency braking performance is
limited:
● Driving on winding or hilly roads.
● Detecting all vehicles, especially vehicles with a trailer, tractors,
muddy vehicles, etc.
● Detecting a vehicle when weather limits visibility, such as infog, rain, or snow.
● Driving during nighttime.
● The windscreen is damaged or affected by foreign items, e.g.
stickers.
Complete attention is always required
while driving, and the driver should be ready to take action and apply the
brakes and / or steer the vehicle to
avoid crashes.
We recommend to deactivate the
system in the vehicle personalisation
in the following cases:
● when towing a trailer or caravan
● when carrying long objects on roof bars or a roof rack
● when the vehicle is being towed with the engine running
● when tyre chains are fitted
● when a spare wheel is fitted that is smaller than the other wheels
● before using an automatic car wash with the engine running
● before placing the vehicle on a rolling road in a workshop
● if the windscreen has been damaged close to the camera
192Driving and operating● 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 assist 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 a chime.Info Display without touchscreen
The system is ready to operate when
the LED in the parking assist button
é is not illuminated.Info Display with touchscreen
Activate the parking assist in the
vehicle personalisation 3 124.
Indication
Depending on which side of the
vehicle is closer to an obstacle,
acoustic warning signals in the
vehicle sound 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.
Driving and operating193
Additionally, the distance to rear
obstacles is displayed by changing
distance lines in the Info Display
3 120. When the obstacle is very
close, + for danger is displayed.
Deactivation
Info Display without touchscreen
Press é to deactivate the system
manually. The LED in the button
illuminates when the system is
deactivated.Info Display with touchscreen
Deactivate the parking assist in the
vehicle personalisation 3 124. The
state of the systemIf the system has been deactivated, it
is not reactivated automatically the
next time the ignition is switched on.
Front-rear parking assist
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 operates with ultrasonic
parking assist sensors in the rear and front bumper.
Activation
In addition to the rear parking assist,
the front parking assist is triggered
when an obstacle is detected in front
and the speed of the vehicle is below 10 km/h.Info Display without touchscreen
The system is ready to operate when
the LED in the parking assist button
é is not illuminated.Info Display with touchscreen
Activate the parking assist in the
vehicle personalisation 3 124.
Indication
Depending on which side of the
vehicle is closer to an obstacle,
acoustic warning signals in the
vehicle sound 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.
Driving and operating207Always aim for the maximum vertical
coupling load, especially in the case
of heavy trailers. The vertical coupling
load should never fall below 25 kg.
Rear axle load
When the trailer is coupled and the
towing vehicle fully loaded, the
permissible rear axle load (see
identification plate or vehicle
documents) may be exceeded by
60 kg , the gross vehicle weight rating
must not be exceeded. If the
permissible rear axle load is
exceeded, a maximum speed of
100 km/h applies.
Towing equipment Depending on version the vehicle canbe fitted with a detachable or a fixed
coupling ball bar.
Type ACaution
When operating without a trailer,
remove the coupling ball bar.
Fitting the coupling ball bar
1. Swivel the connecting socket downwards. Take off the cap.
2.Insert the coupling ball bar into the
opening and push firmly up to the stop.
3. Insert the plug lock in the opening
and lock it with the
corressponding key.
4. Put on the cap.
5. Attach the trailer.
Vehicle care231Electrical system
Fuses Data on the replacement fuse must
match the data on the defective fuse.
There are two fuse boxes in the
vehicle:
● engine compartment
● instrument panel
Before replacing a fuse, turn off the
respective switch and the ignition.
A blown fuse can be recognised by its melted wire.Caution
Do not replace the fuse until the
cause of the fault has been
remedied.
Some functions are protected by
several fuses.
Fuses may also be inserted without
existence of a function.
Fuse extractor
A fuse extractor may be located
behind the passenger compartment fuse box cover:Unclip the cover by pulling at the top
left, then right. Disengage the cover
completely and turn it over.
The extractor has two sides, each side is designed for a different type of
fuses.
Grab the fuse with the fuse extractor
and withdraw the fuse.