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Driving and operating159
Activation
Setting 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
decrease the speed. Short press
changes speed in small steps, long
press in large steps.
Speed value is indicated in the Driver
Information Centre.
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
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 of the map data of the navigationsystem.
The function can be deactivated or
activated in the personalisation
menu, 3 104.
If the cruise control is active, the
recognised speed limit will be
displayed in the Driver Information Centre and MEM illuminates.
The information displayed in the
Driver Information Centre depends on
the display used.
In the Driver Information Centre,
speed limit sign is shown in the
display and MEM illuminates for a few
seconds.
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160Driving and operatingPress 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
Press Ñ: cruise control is in pause
mode, Pause is indicated. 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.
Resume stored speed Press toggle switch to RES/+ at a
speed above 25 mph. The stored
speed will be obtained.
Switching off
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.Fault
In the event of a cruise control fault, the speed is cleared resulting in
flashing of the dashes.
The cruise control may not operate
correctly if traffic signs do not comply with the Vienna Convention on Road
Signs and Signals (Wiener
Übereinkommen über
Straßenverkehrszeichen).
Speed limiter
The speed limiter prevents the
vehicle exceeding a preset maximum
speed.
The maximum speed can be set at
speeds above 18 mph.
The driver can accelerate the vehicle
up to the preset speed. Deviations
from the limited speed may occur
when driving downhill.
The preset speed can be exceeded
temporarily by pressing the
accelerator pedal firmly.
The status and preset speed limit is
displayed in the Driver Information Centre.
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Driving and operating161Switching on
Press ß, symbol ß and Pause are
indicated in the Driver Information
Centre. The system is still not active.
Activation
Setting speed by the driver
Press toggle switch once briefly to
RES/+ or SET/- .
Following the preset speed can be set by pressing toggle switch 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 of the map data of the navigationsystem.
Page 164 of 263

162Driving and operatingThe function can be deactivated or
activated in the personalisation
menu, 3 104.
If the speed limiter is active, the
recognised speed limit will be
displayed in the Driver Information
Centre and MEM illuminates.
The information displayed in the
Driver Information Centre depends on
the display used.
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
speed limiter.
Exceeding the speed limit
In the event of an emergency, it is
possible to exceed the speed limit by
a "kickdown". In this case the preset
speed value flashes.Release the accelerator pedal and
the speed limiter function is
reactivated once a speed lower than
the limit speed is obtained.
Deactivation Press Ñ: speed limiter is in pause
mode, Pause is indicated. 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.
Switching off
Press ß, the speed limiter mode is
deselected and the speed limit
indication extinguishes in the Driver
Information Centre.
Pressing m to activate cruise control
deactivates speed limiter.
The preset speed remains in the
memory when the ignition is switched
off.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 (Wiener
Übereinkommen über
Straßenverkehrszeichen).
Adaptive cruise control
Adaptive cruise control is an
enhancement to conventional cruise
control with the additional feature of
maintaining a certain distance behind the vehicle ahead. It uses radar and
camera sensors 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.
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
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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
Page 166 of 263

164Driving and operatingdecrease the speed. Short press
changes speed in small steps, long
press in large steps.
The speed value is indicated in the
Driver Information Centre.
When the cruise control is operating,
Stop & Start is automatically
deactivated.
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
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 of the map data of the navigationsystem.
The function can be deactivated or
activated in the personalisation
menu, 3 104.
If the cruise control is active, the
recognised speed limit will be
displayed in the Driver Information
Centre and MEM illuminates.
The information displayed in the
Driver Information Centre depends on
the display used.
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
It is always possible to drive faster
than the selected set speed by
depressing the accelerator pedal.
When the accelerator pedal is
released, the vehicle returns to the
desired distance if a slower vehicle is
ahead. Otherwise it returns to the
stored speed.
Once the system is activated,
adaptive cruise control decelerates or
brakes if it detects a vehicle ahead,
which is slower or closer than the
desired following distance.
If the programmed speed setting is
exceeded, the display of the speed
setting disappears and a message
"Cruise control suspended" is
displayed until the accelerator pedal
is released.
Page 167 of 263

Driving and operating1659Warning
Accelerating by the driver
deactivates automatic braking by
the system. This is indicated as a
pop-up warning in the Driver
Information Centre.
Full speed range adaptive cruise
control on vehicles with automatic transmission
Full speed range adaptive cruise
control will maintain a following
distance behind a detected vehicle
and slow your vehicle to a stop behind that vehicle.
In case of a brief stop of the vehicle
ahead the adaptive cruise control will
drive off automatically without driver
action. If necessary, press RES/+ or
the accelerator pedal to resume
adaptive cruise control.
If the stopped vehicle ahead was
stopped for a longer time and then
begins to move forward, the green
illuminated vehicle ahead control
indicator A will flash and a warning
chime will sound as a reminder to
check traffic before resuming.
When the vehicle ahead drives away,
press RES+ or the accelerator pedal
to resume adaptive cruise control. If
stopped for more than five minutes or
if the driver's door is opened and the
driver's seat belt is unbuckled, 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 3 151.9 Warning
When full speed range adaptive
cruise control is deactivated or
cancelled, the vehicle will no
longer be held at a stop and can
start to move. Always be 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 the full
speed range 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 dash), normal (2 dashes) or
distant (3 dashes).
If the engine is running and the
adaptive cruise control is selected
(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 setting is also
displayed in the Driver Information
Centre.
The selected following distance is
indicated by filled distance bars in the
adaptive cruise control page.
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166Driving and operating9Warning
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.
Deactivation
Press Ñ: cruise control is in pause
mode, Pause is indicated. 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.
● For vehicles with automatic transmission, the selector lever is
in N.
Resume stored speed
Press toggle switch to RES/+ at a
speed above 25 mph. The stored
speed will be obtained.
Switching off
Press C: the adaptive 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.
Driver's attention ● Use 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 adaptive cruise control during rain, snow or
heavy dirt, as the radar sensor
can be covered by a water film,
dust, ice or snow. This reduces or suppresses completely the
visibility. In case of sensor
blockage, clean the sensor
cover.
● Do not use the system when the spare wheel is in use.