Your vehicle accelerates automatically as
soon as the vehicle in the range of the ra‐
dar sensor moves off.▷Marking in the speedometer turns orange:
no automatic driving away.
To accelerate to the desired speed auto‐
matically, press the accelerator or press
the RES or SET button.
Rolling bars in the distance display indicate
that the vehicle in the radar sensor detection
range has moved off.
Your vehicle was braked to a halt by pressing
on the brake pedal and it is standing behind
another vehicle:
1. Press the button to call up a stored
desired speed.2.Release the brake pedal.3.Press on the accelerator briefly, or press
the RES rocker switch when the vehicle
ahead of you drives away.
Displays in the instrument cluster
Desired speed
▷The marking lights up green:
the system is active.▷The marking lights up or‐
ange: the system has been
interrupted.▷The marking does not light up: the system
is switched off.
With instrument display: the symbol is
displayed in the speedometer similarly
to the mark for the desired speed.
Brief status display Selected desired speed.
If --- appears briefly on the display for Check
Control messages, it is possible that the sys‐
tem requirements for operation are currently
not met.
Distance to vehicle ahead of you
The selected distance to the vehicle driving
ahead of you is shown.Distance displayDistance 1Distance 2Distance 3Distance 4
This value is set after the system is
switched on.The system has been interrupted or
distance control is deactivated be‐
cause the accelerator pedal is being
pressed; a vehicle was not detected.Distance control is deactivated be‐
cause the accelerator pedal is being
pressed; a vehicle was detected.Rolling bars: the detected vehicle has driven
away.
Indicator/warning lamps
Personal responsibility
The indicator and warning lamps do not
relieve the driver of the responsibility to adapt
his or her desired driving speed and style to
the traffic conditions.◀
The vehicle symbol lights up orange:
A vehicle has been detected ahead of
you.
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The vehicle symbol flashes orange:
The conditions are not adequate for
operating the system.
The system was deactivated but applies the
brakes until you actively resume control by
pressing on the brake pedal or accelerator
pedal.
The vehicle symbol flashes red and an
acoustic signal sounds:
You are requested to intervene by
braking or making an evasive maneuver.
Displays in the Head-up Display The information from Active Cruise Control
can also be displayed in the Head-up Display.
System limits
Speed range Best results are achieved when using the sys‐
tem on well-developed roads and highways.
The system is functional at speeds beginning
at approx. 20 mph/30 km/h.
The maximum speed that can be set depends
on the vehicle.
The system can also be activated when sta‐
tionary.
Comply with the legal speed limit in every sit‐
uation when using the system.
Detection range
The detection capacity of the system and the
automatic braking capacity are limited.
Two-wheeled vehicles for instance might not
be detected.
Limited detection capacity
Because of the limits to the detection ca‐
pacity, you should be alert at all times so that
you can intervene if necessary; otherwise,
there is the danger of an accident occurring.◀
Deceleration
The system does not decelerate for:▷Pedestrians or similar slow-moving road
users.▷Red traffic lights.▷Cross traffic.▷Oncoming traffic.
Swerving vehicles
A vehicle driving in front of you is not detected
until it is completely within the same lane as
your vehicle.
Swerving vehicles
If a vehicle driving ahead of you suddenly
swerves into your lane, the system may not be
able to automatically restore the selected dis‐
tance. This also applies to major speed differ‐
ences to vehicles driving ahead of you, e.g.,
when rapidly approaching a truck. When a ve‐
hicle driving ahead of you is reliably detected,
the system requests that the driver intervene
by braking and carrying out evasive maneu‐
vers, if necessary. You must react yourself;
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otherwise, there is the danger of an accident
occurring.◀
Cornering
If the desired speed is too high for a curve, the
speed is reduced slightly in the curve, although
curves cannot be anticipated in advance.
Therefore, drive into a curve at an appropriate
speed.
In tight curves, situations may result due to the
restricted detection range of the system in
which a vehicle driving ahead of you may not
be detected at all, or not until after a consider‐
able delay.
When approaching a curve, the system may
react briefly to the vehicles in the next lane due
to the bend of the curve. Any deceleration of
the vehicle by the system can be compensated
for by briefly accelerating. After the accelerator
pedal is released, the system becomes active
again and independently controls the speed.
Driving away
In some situations, the vehicle cannot drive
away automatically, e.g., on steep inclines or
behind bumps in the road.
Radar sensor
For US owners only
The transmitter and receiver units comply with
part 15 of the FCC/Federal Communication
Commission regulations. Operation is gov‐
erned by the following:
FCC ID:▷OAYARS3-A
Compliance statement:
This device complies with part 15 of the FCC
Rules. Operation is subject to the following
two conditions:
▷This device may not cause harmful inter‐
ference, and▷this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modifications or changes to
these devices could void the user's authority to
operate this equipment.
Malfunction
The system cannot be activated if the radar sensor is not aligned correctly. This may be
caused by damage incurred during parking, for
example.
A Check Control message is displayed if the
system fails.
The function for detecting and responding
when approaching stationary vehicles may be limited in the following situations:
▷During calibration of the camera immedi‐
ately after vehicle shipment.▷If the camera is malfunctioning or dirty. A
Check Control message is displayed.Seite 142ControlsDriving comfort142
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At a glance
Buttons on the steering wheelPress the
buttonFunctionCongestion Assistant ON/OFF,
Pause, refer to page 144.Rocker switch:
Store, change/maintain speed,
refer to page 138.Maintain, store speed, refer to
page 138.Resume speed, refer to
page 139.Adjust distance, refer to
page 139.
Radar sensor
A radar sensor is located in the front bumper
for detecting vehicles on the road ahead of the
vehicle.
A dirty or covered sensor may hinder the de‐
tection of vehicles.
▷If necessary, clean the radar sensor. Re‐
move layers of snow and ice carefully.▷Do not cover the view field of the radar
sensor.Camera
The camera is located near the base of the
mirror.
Keep the windshield in the area behind the in‐
terior rearview mirror clean and clear.
A dirty or covered area in front of the interior
mirror may hinder the detection of vehicles.
▷If necessary, clean the area in front of the
interior mirror, e.g., carefully remove salt
residue in the winter.
Switching on/off and pausing
Switching on Press the button.
▷Prepare system: press once.▷Activate system:
If the ACC is not activated: press rocker.
With ACC activated: system is ready.
Drive in the center of the lane.
The system is automatically activated be‐
low 25 mph/40 km/h.
If ACC is not activated: indicator lamp
in the instrument cluster comes on.
If ACC is not activated: indicator lamp
in the instrument cluster comes on.
Congestion Assistant can be used.
With Congestion Assistant switched on, the
Pedestrian Warning system is active. The set‐
ting in the Control Display is unchanged.
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Switching offDeactivated or interrupted system
If the system is deactivated or inter‐
rupted, actively intervene by braking, steering
and, if necessary, with evasive maneuvers; oth‐
erwise, there is the danger of an accident oc‐
curring.◀
Press the button.
The indicator goes out. Stored desired speed
and distance are still kept by the ACC.
The system does not carry out a steering
movement.
Interrupting When active, press the button.
The system is automatically interrupted in the
following situations:▷At a speed above 25 mph/40 km/h.▷With only one detected lane marking.▷When you leave the limited access high‐
way.▷When the steering wheel is released.▷When you intervene in the steering.▷When you leave your own lane.▷When there is no vehicle ahead.▷When the turn signal is on.▷When the lane is too narrow.
Rolling bars:
Congestion assistant is no longer ac‐
celerating. To accelerate further, acti‐
vate ACC by briefly pressing the accelerator,
pressing the RES button or rocker switch.
Red flashing and signal tone:
Congestion Assistant is interrupted.
The system does not carry out a steer‐
ing movement. ACC exercises control.
If the system conditions are met, the system
reactivates automatically.
When you leave the approved road type, the
system is first interrupted and then shuts
down.
Distance Selecting a distance
Adjust the distance according to the traf‐
fic and weather conditions; otherwise, there is
the danger of an accident occurring. Maintain
the prescribed safety distance.◀
Adjust distance Press the button repeatedly until the
desired distance is set.
Distance to vehicle ahead of you
The selected distance to the vehicle driving
ahead of you is shown.Distance displayDistance 1Distance 2Distance 3Distance 4
This value is set after the system is
switched on.
Selecting a distance
Adjust the distance according to the traf‐
fic and weather conditions; otherwise, there is
the danger of an accident occurring. Maintain
the prescribed safety distance.◀
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Displays in the instrument clusterSymbolDescriptionCongestion Assistant and Distance
Control on standby.Congestion Assistant on standby.
Distance control controls within the
set distance.Congestion Assistant activated.
The system controls the speed and
assists with maintaining the lane.Rolling bars: speed is no longer in‐
creased by the congestion assistant
at 25 mph/40 km/h. When the
speed is increased by the driver, the
system does not perform any more
steering movements.Red flashing and signal tone: con‐
gestion Assistant is interrupted.
The system does not carry out a
steering movement. ACC exercises
control.
System limits
When driving within narrow driving lanes, e.g.,
in construction zones or rescue lanes, the sys‐
tem cannot be activated or meaningfully used.
Limited detection capacity
Because of the limits to the detection ca‐
pacity, you should be alert at all times so that
you can intervene if necessary; otherwise,
there is the danger of an accident occurring.◀
Complying with country-specific laws
When the Congestion Assistant is used,
observe specific national laws.◀
Cruise control
The concept The system is functional at speeds beginning
at approx. 20 mph/30 km/h.
It maintains the speed that was set using the
control elements on the steering wheel.
The system brakes on downhill gradients if en‐
gine braking action is insufficient.
Unfavorable conditions
Do not use the system if unfavorable
conditions make it impossible to drive at a con‐
stant speed, for instance:▷On curvy roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
Otherwise, you could lose control of the vehi‐
cle and cause an accident.◀
General information
Depending on the set driving program, the
characteristics of the cruise control can
change in certain areas.
Controls
At a glance
Press the
buttonFunctionCruise control on/off, interrupt‐
ing, refer to page 147Store/maintain speed, refer to
page 147Resume speed, refer to
page 148Rocker switch:
Change/maintain speed, refer
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The arrangement of the buttons varies accord‐
ing to the how the vehicle is equipped or coun‐
try-specific variants.
Switching on Press the button on the steering
wheel.
The marking in the speedometer is set to the
current speed.
The cruise control can be used.
Switching off Deactivated or interrupted system
If the system is deactivated or inter‐
rupted, actively intervene by braking and, if
necessary, with evasive maneuvers; otherwise,
there is the danger of an accident occurring.◀
Press the button on the steering
wheel.▷If active: press twice.▷If interrupted: press once.
The displays go out. The stored desired speed
is deleted.
Interrupting When active, press the button.
The system is automatically interrupted if:
▷The brakes are applied.▷The clutch pedal is depressed for a few
seconds or released while a gear is not en‐
gaged.▷The transmission position D is disengaged.▷DTC Dynamic Traction Control is activated
or DSC is deactivated.▷DSC is actively controlling stability.▷HDC is activated.▷When SPORT+ is activated with Driving
Dynamics Control.Maintaining/storing the current speed
Press the button.
Or:
Press the rocker switch while the system is in‐
terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
This is displayed, refer to page 148, in the
speedometer and briefly in the instrument
cluster.
When cruise control is maintained or stored,
DSC Dynamic Stability Control is switched on,
if necessary.
Changing/maintaining speed The rocker switch can be pressed while the
system is interrupted in order to maintain and
store the current speed.
Adapting the desired speed
Adapt the desired speed to the road con‐
ditions and be ready to brake at all times; oth‐
erwise, there is the danger of an accident oc‐
curring.◀
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Press the rocker switch up or down repeatedly
until the desired speed is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed if the road is
clear.▷Each time the rocker switch is pressed to
the point of resistance, the desired speed
increases or decreases by approx.
1 mph/1 km/h.▷Each time the rocker switch is pressed
past the point of resistance, the desired
speed increases or decreases by a maxi‐
mum of 5 mph/10 km/h.
The maximum speed that can be set de‐
pends on the vehicle.▷Pressing the rocker switch to the resist‐
ance point and holding it accelerates or de‐
celerates the vehicle without requiring
pressure on the accelerator pedal. After
the rocker switch is released, the vehicle
maintains its final speed. Pressing the
switch beyond the resistance point causes
the vehicle to accelerate more rapidly.
Resuming the desired speed
Press the button.
The stored speed is reached and maintained. Displays in the instrument cluster
Indicator lamp Depending on how the vehicle is equip‐
ped, the indicator lamp in the instru‐
ment cluster indicates whether the sys‐
tem is switched on.
Desired speed
▷The marking lights up green:
the system is active.▷The marking lights up orange: the system
has been interrupted.▷The marking does not light up: the system
is switched off.
With instrument display: the symbol is
displayed in the speedometer similarly
to the mark for the desired speed.
Brief status display Selected desired speed.
If --- appears briefly on the display for Check
Control messages, it is possible that the sys‐
tem requirements for operation are currently
not met.
PDC Park Distance Control
The concept PDC support when parking. Slowly approach‐
ing an object behind or, with the appropriate
PDC equipment, also in front of your vehicle is
signaled by:
▷Signal tones.▷Visual display.
General information
Measurements are made by ultrasound sen‐
sors in the bumpers.
The range, depending on the obstacle and en‐
vironmental conditions, is approx. 6 ft/2 m.
An acoustic warning is first given:
▷By the front sensors and the two rear cor‐
ner sensors at approx. 24 in/60 cm.▷By the rear middle sensors at approx.
5 ft/1.50 m.
To ensure full operability:
▷Do not cover sensors, e.g., by stickers, bi‐
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