116Lightingwide and symmetrical. If the speed is
below 19 mph, the headlamps are
slightly swiveled to the outside to
allow an earlier recognition of of
pedestrians and objects on each side
of the road. A special beam pattern is
designed to avoid glare for other road
users.
Corner light
When turning off, depending on the
steering angle and the turn signal light, particular LEDs are triggered
which illuminate the direction of
travel. It is activated up to a speed of
25 mph.
Adverse weather light
Controlled by wiper or rain sensor and activated at rain and snowfall. The
wide light distribution – slightly
swiveled to the outside – enables
improved orientation at the edge of
the road. The intensity of the light in
the far distance is increased in order
to recognize objects and markings on
the right road side and obstacles on
the lane despite the weather
condition. Lowering the reflection on
wet roads reduces dazzling of
oncoming traffic. Adverse weather
light is activated up to a speed to 43 mph.
Curve light
Particular LEDs, based on steering
angle and speed, are additionally
triggered to improve lighting in
curves. This function is activated at
speeds from 25 mph to 43 mph and
reacts to steering angle.
High beam assist This feature allows the high beam to
function as main driving light at night.
The camera in the windscreen
detects the lights of oncoming or
preceding vehicles. Each LED on
right or left side can be triggered or
faded out particularly according to the traffic situation. This gives the best
light distribution without dazzling
other road users. Once activated,
high beam assist remains active and
switches high beam on and off
depending on surrounding
Lighting117conditions. The latest setting of the
high beam assist will remain after the
ignition is switched on again.
High beam assist includes a special
motorway mode. When driving faster
than 71 mph on motorways, the light
beam becomes smaller to avoid
dazzling of oncoming traffic. When
following vehicles ahead or passing,
mirror dazzling for these vehicles is
reduced.
Activation
Activate the high beam assist by
pressing f on the turn and lane
change lever. The LED of the button illuminates if the high beam assist is
activated. High beam is switched on
automatically at a speed above
15 mph . High beam is switched off at
a speed below 9 mph, but high beam
assist remains active.
The green control indicator f
illuminates continuously when the
high beam assist is activated, the blue one 7 illuminates when high beam is
on.
Control indicator f 3 98, 7 3 98.
Pressing indicator lever once
switches on manual high beam
without high beam assist.
High beam assist switches
automatically to low beam when:
● Driving in urban areas.
● Camera detects heavy fog.
● Front or rear fog lights are switched on.
If there are no restrictions detected,
the system switches back to high
beam.
Deactivation
Deactivate the high beam assist by
pressing f on the turn and lane
change lever
If a headlight flash is activated when
the high beam assist is activated and low beam is on, the high beam assist
will be deactivated. The system
changes to high beam.
If a headlight flash is activated when
the high beam assist is activated and high beam is on, the high beam assist
will be deactivated. The system
changes to low beam.
118LightingTo reactivate the high beam assist,
flash the headlights again.
Fault in LED headlight system
When the system detects a failure in
the LED headlight system, it selects a preset position to avoid dazzling of
oncoming traffic. A warning is
displayed in the Driver Information
Centre.
Hazard warning flashers
Operated by pressing ¨.
When braking in an emergency, the
hazard warning flashers are switched
on automatically depending on the
force of deceleration. They are
switched off automatically the first
time you accelerate.
Turn and lane-change signalslever up:right turn signallever down:left turn signal
A resistance point can be felt when
moving the lever.
Constant flashing is activated when
the lever is being moved beyond the
resistance point. It is deactivated
when the steering wheel is moved in
the opposite direction or lever is
manually moved back to its neutral
position.
Activate temporary flashing by
holding the lever just before the
resistance point. Turning lights will
flash until lever is being released.
To activate three flashes, tap the
lever briefly without passing the
resistance point.
If you forget to cancel the turn and
lane-change signals for more than
twenty seconds, the volume of the
audible signal will increase if the
speed is above 40 mph.
Driving and operating133Driving and
operatingDriving hints ............................... 134
Control of the vehicle ...............134
Steering ................................... 134
Starting and operating ...............134
New vehicle running-in ............134
Ignition switch positions ...........134
Power button ........................... 135
Power saving mode .................136
Starting the engine ..................137
Overrun cut-off ........................ 138
Stop-start system ....................139
Parking .................................... 141
Engine exhaust .......................... 142
Diesel particle filter ..................142
Catalytic converter ...................143
AdBlue ..................................... 143
Automatic transmission ..............146
Transmission display ...............146
Selector lever .......................... 147
Manual mode ........................... 148
Electronic driving programmes 148
Fault ........................................ 148
Interruption of power supply ....149Manual transmission ..................149
Brakes ........................................ 150
Antilock brake system .............150
Parking brake .......................... 151
Brake assist ............................. 153
Hill start assist ......................... 153
Ride control systems .................153
Electronic Stability Control and Traction Control system .........153
Selective ride control ...............155
Sport mode .............................. 157
Driver assistance systems .........158
Cruise control .......................... 158
Speed limiter ........................... 160
Adaptive cruise control ............162
Forward collision alert .............169
Active emergency braking .......170
Front pedestrian protection .....173
Parking assist .......................... 174
Advanced parking assist .........177
Side blind spot alert .................182
Panoramic view system ...........184
Rear view camera ...................187
Lane departure warning ..........188
Lane keep assist .....................190
Driver alert ............................... 192
Fuel ............................................ 193
Fuel for petrol engines .............193
Fuel for diesel engines ............194Refuelling ................................ 195
Fuel consumption - CO 2-
Emissions .............................. 196
Trailer hitch ................................ 197
General information .................197
Driving characteristics and towing tips .............................. 197
Trailer towing ........................... 197
Towing equipment ...................198
Trailer stability assist ...............200
Driving and operating163vehicle speed increases or decreases
to follow the vehicle in front, but will not exceed the set speed. It may
apply limited braking with activated
brake lights.
If the vehicle in front accelerates or changes lane, the adaptive cruise
control progressively accelerates
your vehicle to return to the
programmed speed. If the driver
operates a direction indicator to
overtake a slower vehicle, the
adaptive cruise control allows your
vehicle to temporarily approach the
vehicle in front to assist the
overtaking manoeuvre, though never
exceeding the programmed speed.9 Warning
The complete driver attention is
always required while driving with adaptive cruise control. The driver stays fully in control of the vehicle
because the brake pedal, the
accelerator pedal and the cancel
switch have priority over any
adaptive cruise control operation.
Switching on
Press C to switch on the steering
wheel: symbol C is indicated in the
Driver Information Centre. The
system is still not active.
Activation
Adaptive cruise control is switched onmanually at a speed between 25 and
112 mph . For vehicles with automatic
transmission, the automatic selector
lever must be in position D or M.
Setting the speed by the driver
Accelerate to the desired speed and
press toggle switch once briefly to
RES/+ or SET/- . The current speed is
stored and maintained. Accelerator
pedal can be released.
The preset speed can then be
changed by pressing toggle switch to
RES/+ to increase or SET/- to
Driving and operating1719Warning
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
If equipped only with front camera the
active emergency braking operates in forward gear above walking speed up
to 53 mph. With radar sensor and
front camera active emergency
braking operates in forward gear
above walking speeds to 87 mph.
A precondition is that forward collision
alert with front camera system is not
deactivated in the vehicle
personalisation menu 3 104.
The system includes: ● brake preparation system
● emergency automatic braking ● forward looking brake assist
● intelligent brake assist (only with radar sensor)
● forward collision alert
● front pedestrian protection
Brake preparation system
When approaching a vehicle ahead
or a pedestrian so quickly that a
collision is likely, the brake
preparation system slightly
pressurizes the brakes. This reduces
the response time, when a manual or automatic braking is requested.
The brake system is prepared so that braking can occur more rapidly.Emergency 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. Depending on the
situation, the vehicle may
automatically brake moderately or
hard. This front automatic braking can
only occur if a vehicle ahead is
detected 3 169 . On vehicles with front
pedestrian protection, front automatic
braking can also occur when a
pedestrian ahead is detected.
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 press the electric
parking brake button or firmly press
the accelerator pedal.
172Driving and operating9Warning
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.
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, pressing
the brake pedal less strongly results
in immediate hard braking. This
function helps the driver brake
quicker and harder before the
imminent collision.
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.
The system is designed to work with
all occupants wearing their seat belts.
Intelligent Brake Assist
If the vehicle is equipped with radar
sensor 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 is normal
and the brake pedal should continue
to be applied as needed. Intelligent
brake assist will automatically
disengage only when the brake pedal is released.9 Warning
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.
Forward collision alert
3 169
Front pedestrian protection
3 173.
182Driving and operatingCaution
Performance of the system can bereduced 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 correct distance indication in the
upper part of these vehicles
cannot be guaranteed.
Objects with a very small reflection
cross-section, e.g. objects of
narrow size or soft materials, may
not be detected by the system.
Parking assist systems do not
detect objects outside the
detection range.
Notice
It is possible that the sensor detects a non-existing object caused by
echo disturbance from external
acoustic noise or mechanical
misalignments (sporadic false
warnings may occur).
Make sure that the front number
plate is properly mounted (not bent
and no gaps to the bumper on the left
or right side) and the sensors are
firmly in place.
Advanced parking assist system
may not respond to changes in the
available parking space after
initiating a parking manoeuvre. The
system may recognize an entry, a
gateway, a courtyard or even a crossing as a parking slot. After
selecting reverse gear the system
will start a parking manoeuvre. Take care regarding the availability of the
suggested parking slot.
Surface irregularities, e.g. on construction zones, are not detected
by the system. The driver accepts
responsibility.
Side blind spot alert The Side blind spot alert system
detects and reports objects on either
side of the vehicle, within a specified
"blind spot" zone. The systemdisplays a visual alert in each exterior
mirror, when detecting objects that
may not be visible in the interior and
exterior mirrors.
Side blind spot alert uses some of the
advanced parking assist sensors
which are located in the front and rear bumper on both sides of the vehicle.9 Warning
Side blind spot alert does not
replace driver vision.
The system does not detect:
● vehicles outside the side blind zones which may be rapidly
approaching
● pedestrians, cyclists or animals
Before changing a lane, always
check all mirrors, look over the
shoulder and use the turn signal.
Activation
7'' Colour-Info-Display: select Blind
spot monitoring on the homepage of
the touch screen and activate the
function.