168Driving and operatingSwitching on the system
Press m, symbol m and a message
are displayed in the Driver
Information Centre. The system is still not active.
Activation of the functionality
Setting speed by the driver
Accelerate to the desired speed and
press thumb wheel 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 thumb wheel to
RES/+ to increase or SET/- to
decrease the speed. Short press
changes speed in small steps, long
press in large steps.
Speed value is indicated in the Driver
Information Centre.
Driving and operating169Adopting speed by the speed limitrecognition
The intelligent speed adaptation
informs the driver when a speed limit
is detected by the speed limit
recognition. The detected speed limit
can be used as new value for the
cruise control.
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 deactivated or
activated in the personalisation menu 3 115.
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,
speed limit sign is shown in the
display 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
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.
● 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.
Driving and operating171Press thumb wheel once briefly to
RES/+ or SET/- .
Following the preset speed can be set
by pressing thumb wheel to RES/+ to
increase or SET/- to decrease the
desired maximum speed. Short press changes preset speed in small steps,
long press in large steps. Speed
value is indicated in the Driver
Information Centre.
Press Ñ to activate speed limiter.
Adopting speed by the traffic sign assistant
The intelligent speed adaptation
informs the driver when a speed limit
is detected by the traffic sign
assistant. 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 3 115.
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 limit
In 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.
Driving and operating1739Warning
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 button
Ñ have priority over any adaptive
cruise control operation.
Switching on the system
Press C, the symbol C is indicated in
the Driver Information Centre. The
system is still not active.
Activation of the functionality by
setting the speed
The adaptive cruise control has to be switched on manually at a speed
between 19 mph and 112 mph.
For vehicles with automatic
transmission, the automatic selector
lever must be in position D or M.
Accelerate to the desired speed and
move the thumb wheel to SET/-. The
current speed is stored and
maintained.The speed value is indicated in the
Driver Information Centre.
When the adaptive cruise control is
operating, the stop-start system is
automatically deactivated.
Overriding set speed It is always possible to drive fasterthan the selected set speed by
depressing the accelerator pedal.
When the accelerator pedal is
released, the vehicle returns to the
stored speed. If a slower moving
vehicle is ahead, the following
distance selected by the driver is
restored.
174Driving and operatingIf the set speed is exceeded, the
indicated speed setting flashes in the Driver Information Centre and a
warning message appears.9 Warning
Accelerating by the driver
deactivates automatic braking by
the system. This is indicated as a
pop-up warning in the Driver
Information Centre.
Increasing speed
With the adaptive cruise control
active, hold the thumb wheel moved
to RES/+ or briefly move to RES/+
repeatedly: The speed increases continuously or in small increments.
Reducing speed
With the adaptive cruise control
active, hold the thumb wheel moved
to SET/- or briefly move to SET/-
repeatedly: The speed decreases
continuously or in small increments.
Resuming stored speed
Move the thumb wheel to RES/+ at a
speed above 19 mph. The adaptive
cruise control is activated with the stored set speed.
Taking over the speed limit from
the traffic sign assistant
The intelligent speed adaptation
informs the driver when a speed limit
is detected by the traffic sign
assistant. The detected speed limit
can be taken over as new set speed
for the adaptive cruise control.
With the 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 3 115.
If the adaptive cruise control is active, the recognised speed limit will be
displayed in the Driver Information Centre and MEM illuminates.In the Driver Information Centre,
speed limit sign is shown in the
display 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 limit is now the new set
speed of the adaptive cruise control.
Adaptive cruise control on
vehicles with automatic
transmission
For vehicles with automatic
transmission, adaptive cruise control
allows to maintain the selected
distance behind a stopping vehicle
until a complete stop is reached.
If the system has stopped your
vehicle behind another vehicle, then
the set speed is replaced by a green
control indicator .. This symbol
notifies, that the vehicle is hold
automatically in stop position.
Driving and operating175If the stopped vehicle ahead was
stopped for a longer time and then
begins to move forward, the green
illuminated vehicle ahead control
indicator . will flash and a warning
chime will sound as a reminder to check traffic before resuming.
When the vehicle ahead drives away,
press the accelerator pedal until
19 mph and then move the thumb
wheel to SET- or RES+ to resume
adaptive cruise control. If the vehicle
stays stopped for more than five
minutes or if the driver's door is
opened and the driver's seat belt is
unfastened, then the electric parking
brake is applied automatically to hold
the vehicle. Control indicator m will
illuminate. To release electric parking
brake, press the accelerator pedal.
Electric parking brake 3 160.9 Warning
When the system is deactivated or
cancelled, the vehicle will no
longer be held at a stop and can
start 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.
176Driving and operatingDeactivation 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.
● The electric parking brake is applied.
● 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 mountainroads, 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.
182Driving and operatingComplete attention is always required
while driving, and you 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 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
● if the front bumper has been damaged
● if the brake lamps are not workingFault
In case the system requires a service,
m is illuminated in the instrument
cluster, a message is displayed in the Driver Information Centre and an
audible signal is given.
If the system does not work as it
should do, vehicle messages are
displayed in the Driver Information
Centre.
Vehicle messages 3 114.
Front pedestrian protection Front pedestrian protection may help
to avoid or reduce the harm caused
by front-end crashes with pedestrians when driving forward.
The system uses the front camera in
the windscreen to detect a pedestrian directly ahead in your path.
Front pedestrian protection can
detect and alert to pedestrians in a
forward gear at speeds between
3 mph and 37 mph.
During nighttime driving, system
performance is limited.9 Danger
Front pedestrian braking does not
provide an alert or automatically
brake the vehicle, unless it detects
a pedestrian.
The system may not detect
pedestrians, including children,
when the pedestrian is not directly ahead, not fully visible, not
standing upright, or when part of a
group.
Front pedestrian protection includes:
● detecting front pedestrian ahead● front pedestrian alert
Front pedestrian protection is
activated together with forward
collision alert.
Forward collision alert 3 178.
Detecting front pedestrian ahead
A pedestrian ahead up to a distance
of approx. 40 m is indicated by a
symbol in the instrument cluster.