Driving and operating175Using a camera at the top of thewindscreen, 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 deactivated or
activated in the personalisation menu 3 123.
If the cruise control 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, the
speed limit sign is shown in the
display and MEM illuminates for a few
seconds.
Press MEM to request saving of the
suggested speed.
Press MEM 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 button to deactivate the
functionality. The 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).
Driving and operating179The speed limiter is deactivated, but
not switched off. The last stored
speed remains in memory for later
speed resume.
Resume limit speed
Press the button to return to the
stored speed limit.
Switching off the system
Turn to 0 to switch off the system.
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
the windscreen and a radar sensor in
the front bumper to detect the
vehicles ahead. If no vehicle is
detected in the driving path, the
adaptive cruise control will behave
like a conventional cruise control.
The adaptive cruise control
automatically decelerates the vehicle
when approaching a slower moving
vehicle. It then adjusts the vehicle
speed to follow the vehicle ahead at
the selected following distance. The
vehicle speed increases or decreases
to follow the vehicle ahead, but will
not exceed the set speed. It may
apply limited braking with activated
brake lights.
If the vehicle ahead accelerates or changes lane, the adaptive cruise
control progressively accelerates the
vehicle to return to the stored set
speed. If the driver operates the turn
180Driving and operatinglights to overtake a slower vehicle, theadaptive cruise control allows the
vehicle to temporarily approach the
vehicle ahead to help passing it.
However, the set speed will never be
exceeded.
If the vehicle ahead is moving too
slowly and the selected following
distance cannot be maintained
anymore, a warning chime is given
and a message is displayed in the
Driver Information Centre. The
message prompts the driver to take
back control of the vehicle. On
vehicles with automatic transmission,
the system can brake the vehicle until a full stop.
The adaptive cruise control can store
set speeds over 25 mph and 93 mph.
Additionally at least the third gear
must be engaged on manual
transmission, on automatic
transmission position D / A or the
second or a higher gear in position M must be selected.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 and the accelerator pedal have priority
over any adaptive cruise control operation.
Switching on the system
The adaptive cruise control can be
switched on manually at a speed
between 25 mph and 93 mph.
A precondition is that adaptive cruise
control is not deactivated in the
vehicle personalisation menu 3 123.Turn to Cruise, the symbol Q and a
message are displayed in the Driver Information Centre. The system is still not active.
Driving and operating183start 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 GAP, the current setting is
shown in the Driver Information
Centre.
Press GAP 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 does not detect a vehicle
in the driving path, U is displayed
in the Driver Information Centre. The system operates as conventional
cruise control.
If the system detects a vehicle in the
driving path, V is displayed in the
Driver Information Centre. The
system operates as conventional
cruise control.
If the system detects a vehicle in the
driving path which is too close or too
slow, it adjusts the speed accordingly. X is displayed in the Driver
Information Centre.
If the system reaches the limit of
adjusting the speed and the driver
does not react to this situation, the
system is automatically deactivated
and W is displayed in the Driver
Information Centre.
If the set speed is temporarily
exceeded by the driver, the system is automatically deactivated and Z is
displayed in the Driver Information Centre.
Driving and operating189FunctionalityActive 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. Pedestrians are detected
only if the speed does not exceed
37 mph.
A precondition is that active
emergency braking is not deactivated
in the vehicle personalisation menu
3 123.
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 3 186
Front pedestrian protection 3 190
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.Emergency 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 complete
stop, keep the brake pedal
depressed to prevent the vehicle
from starting off again.
● Manual transmission: If the vehicle comes to a completestop, 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
200Driving and operatingSystem limitations
The rear view camera may not
operate properly when:
● the surrounding is dark
● the beam of headlights is shining
directly into the camera lenses
● weather limits visibility such as fog, rain or snow
● the camera lenses are blocked by snow, ice, slush, mud, dirt.Clean the lense, rinse with water,
and wipe with a soft cloth
● the tailgate will be opened
● the vehicle is towing an electrically connected trailer,
bicycle carrier etc.
● the vehicle had a rear end accident
● there are extreme temperature changes
Lane departure warning
The lane departure warning system
observes the lane markings between
which the vehicle is driving via a front camera. The system detects lanechanges and warns the driver in the
event of an unintended lane change
via visual and acoustic signals.
Criteria for the detection of an
unintended lane change are:
● no operation of turn lights
● no brake pedal operation
● no active acceleration
If the driver is active, no warning will
be issued.
ActivationInfo Display without touchscreen
Press Qto activate the system.
The system is switched on when the
LED in the button is illuminated.Info Display with touchscreen
The system can be activated in the
vehicle personalisation 3 123.
The system is only operable at
vehicle speeds above 37 mph and if
lane markings are available.
When the system recognises an
unintended lane change, the control
indicator ) flashes yellow.
Simultaneously a chime sounds.
Deactivation
Info Display without touchscreen
Press Q to deactivate the system.
The LED in the button Q
extinguishes.Info Display with touchscreen
The system can be deactivated in the
vehicle personalisation 3 123.
216Vehicle careBrakesIn the event of minimum thickness of
the brake lining, a squealing noise
sounds during braking.
Continued driving is possible but
have the brake lining replaced as
soon as possible.
Once new brake linings are installed,
do not brake unnecessarily hard for
the first few journeys.
Brake fluid9 Warning
Brake fluid is poisonous and
corrosive. Avoid contact with eyes, skin, fabrics and painted surfaces.
The brake fluid level must be betweenthe DANGER and MAX marks.
If fluid level is below DANGER, seek
the assistance of a workshop.
Brake and clutch fluid 3 262.
Vehicle battery
The vehicle battery is maintenance-
free provided that the driving profile
allows sufficient charging of the
battery. Short-distance-driving and
frequent engine starts can discharge
the battery. Avoid the use of
unnecessary electrical consumers.
Batteries do not belong in household
waste. They must be disposed of at
an appropriate recycling collection
point.
Laying up the vehicle for more than
four weeks can lead to battery
discharge. Disconnect the clamp from the negative terminal of the vehicle
battery.
Ensure the ignition is switched off
before connecting or disconnecting
the vehicle battery.
Battery discharge protection 3 137.
Replacing the vehicle battery Notice
Any deviation from the instructions
given in this section may lead to
temporary deactivation or
disturbance of the stop-start system.
250Vehicle care● A discharged vehicle battery canalready freeze at a temperature
of 0 °C. Defrost the frozen battery before connecting jump leads.
● Wear eye protection and protective clothing when
handling a battery.
● Use a booster battery with the same voltage (12 V). Its capacity
(Ah) must not be much less than
that of the discharged vehicle
battery.
● Use jump leads with insulated terminals and a cross section of
at least 16 mm 2
(25 mm 2
for
diesel engines).
● Do not disconnect the discharged
vehicle battery from the vehicle.
● Switch off all unnecessary electrical consumers.
● Do not lean over the vehicle battery during jump starting.
● Do not allow the terminals of one
lead to touch those of the other
lead.● The vehicles must not come into contact with each other during
the jump starting process.
● Apply the parking brake, transmission in neutral,
automatic transmission in P.
Open the positive terminal protection
caps of both vehicle batteries.
Lead connection order: 1. Connect the red lead to the positive terminal of the booster
battery.
2. Connect the other end of the red lead to the positive terminal of the
discharged battery.
3. Connect the black lead to the negative terminal of the boosterbattery.
4. Connect the other end of the black
lead to a vehicle grounding point
of your vehicle in the engine
compartment.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump.
2. After 5 minutes, start the other engine. Start attempts should be
made for no longer than 15
seconds at an interval of 1 minute.
3. Allow both engines to idle for approx. three minutes with the
leads connected.
4. Switch on electrical consumers e.g. headlights, heated rear
window of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.