Cruise controlThe concept The system maintains a preset speed via the
buttons on the steering wheel. The system
brakes on downhill gradients if engine braking
is insufficient.
General information
Depending on the driving settings, the features
of the cruise control can change in certain
areas.
Hints Unfavorable conditions
Do not use the system if unfavorable
conditions make it impossible to drive at a con‐
stant speed, e.g.:▷On winding 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.◀
Controls
At a glance
Press but‐
tonFunctionCruise control on/off, interrupt,
refer to page 146Store/maintain speed, refer to
page 147Resume speed, refer to
page 147Rocker reel:
Maintain, store, change speed,
refer to page 147Buttons are arranged according to vehicle's
series, optional features and country specifica‐
tions.
Switching on Press button on the steering wheel.
The marking in the speedometer is set to the
current speed.
The cruise control can be used.
Switch off Deactivated or interrupted system
With deactivated or interrupted system
use your brakes, steering and moves as usual
to avoid the chance of an accident.◀
Press 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.▷Selector lever position D is disengaged.▷DTC Dynamic Traction Control is activated
or DSC is deactivated.▷DSC is actively controlling stability.▷When SPORT+ is activated with Driving
Dynamics Control.Seite 146ControlsDriving comfort146
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Maintaining, storing, and changing the
speed
Hints Adjusting the desired speed
Modify desired speed to road conditions
and be ready to brake at all times; otherwise,
there is the risk of an accident.◀
Maintaining/storing the speed Press button.
Or:
Press the rocker reel while the system is inter‐
rupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
This is displayed, refer to page 147, in the
speedometer and briefly in the instrument
cluster.
When cruise control is maintained or stored,
DSC Dynamic Stability Control will be turned
on if needed.
Changing the speed
Press the rocker reel up or down repeatedly
until the desired speed is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed when the
road is clear.
▷Each time the rocker reel is pressed to the
point of resistance, the desired speed in‐creases or decreases by approx. 1 mph/
km/▷Each time the rocker reel is pressed past
the point of resistance, the desired speed
increases or decreases by a maximum of
5 mph/10 km/h.
The maximum speed that can be set de‐
pends on the vehicle.▷Pressing the rocker reel to the resistance
point and holding it accelerates or deceler‐
ates the vehicle without requiring pressure
on the accelerator pedal.
After the rocker reel is released, the vehicle
maintains its final speed. Pressing the reel
beyond the resistance point causes the ve‐
hicle to accelerate more rapidly.
Resuming the desired speed
Press 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 or‐
ange: the system has been
interrupted.▷The marking does not light up: the system
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Brief status displaySelected desired speed.
If --- appears briefly on the display for Check
Control messages, it is possible that the sys‐
tem requirements are currently not ready for
operations.
Displays in the Head-up Display Some system information can also be dis‐played in the Head-up Display.
PDC Park Distance Control
The concept PDC is a support when parking. When you
slowly approach an object in the rear - or also
in the front of the vehicle if the feature is availa‐
ble - then the object is reported through:▷Signal tones.▷Visual display.
General information
Ultrasound sensors in the bumpers measure
the distances from objects.
The maneuvering range, depending on the ob‐
stacle and environmental 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 functionality:
▷Do not cover sensors, e.g., with stickers,
bicycle racks and the like.▷Keep the sensors clean and free of ice.▷When using high-pressure washers, do not
spray the sensors for long periods and
maintain a distance of at least 12 in/30 cm.Hints
Personal responsibility
Even an active system does not relieve
the driver from personal responsibility while
driving.
Technically the system has its limits, it cannot
independently react to all traffic situations.
Monitor your driving, be on the alert, observe
the vehicle surroundings and other traffic and
react when needed - risk of accident.◀
Avoid driving fast with PDC
Avoid approaching an object too fast.
Avoid driving off fast while PDC is not yet ac‐
tive.
For technical reasons, the system may other‐
wise be too late in issuing a warning.◀
At a glance
With front PDC: button in vehicle
PDC Park Distance Control
Switching on/off
Switching on automatically With the engine running, engage lever in posi‐
tion P R.
The rearview camera also switches on.
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Automatic deactivation during forward
travel
The system switches off when a certain driving
distance or speed is exceeded.
Switch the system back on if needed.
With front PDC: switching on/off
manually
Press button.▷On: the LED lights up.▷Off: the LED goes out.
The rearview camera image is displayed when
the reverse gear is engaged by pressing the
button.
Display
Signal tones When approaching an object, an intermittent
sound indicates the position of the object. E. g.
if an object is detected to the left rear of the
vehicle, a signal tone sounds from the left rear
speaker.
The shorter the distance to the object, the
shorter the intervals.
If the distance to a detected object is less than
approx. 10 in/25 cm, a continuous tone is
sounded.
With front PDC: if objects are located both in
front of and behind the vehicle, an alternating
continuous signal is sounded.
An interval tone is interrupted with the appro‐
priate equipment after about 3 seconds:
▷If the vehicle stops in front of an object that
is detected by only one of the corner sen‐
sors.▷If moving parallel to a wall.
The signal tone is switched off:
▷When the vehicle moves away from an ob‐
ject by more than approx. 4 in/10 cm.▷When selector lever position P is engaged
on vehicles with Steptronic transmission.
Volume
The volume of the PDC signal tone can be ad‐
justed similar to the sound and volume set‐
tings of the radio.
Settings are stored for the profile currently in
use.
Visual warning
The approach of the vehicle to an object can
be shown on the Control Display. Objects that
are farther away are already displayed on the
Control Display before a signal sounds.
A display appears as soon as Park Distance
Control (PDC) is activated.
The range of the sensors is represented in the
colors green, yellow and red.
When the image of the rearview camera is dis‐
played, the reel can be made to PDC:
"Rear view camera"
System limits
Limits of ultrasonic measurement
Ultrasonic measuring might not function under
the following circumstances:
▷For small children and animals.▷For persons with certain clothing, e.g.
coats.▷With external interference of the ultra‐
sound, e.g. from passing vehicles or loud
machines.▷When sensors are dirty, iced over, dam‐
aged or out of position.▷Under certain weather conditions such as
high relative humidity, rain, snowfall, ex‐
treme heat or strong wind.▷With tow bars and trailer couplings of other
vehicles.▷With thin or wedge-shaped objects.Seite 149Driving comfortControls149
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▷With moving objects.▷With elevated, protruding objects such as
ledges or cargo.▷With objects with corners and sharp edges.▷With objects with a fine surface structure
such as fences.▷For objects with porous surfaces.
Low objects already displayed, e.g., curbs, can
move into the blind area of the sensors before
or after a continuous tone sounds.
False warnings
PDC may issue a warning under the following conditions even though there is no obstacle
within the detection range:
▷In heavy rain.▷When sensors are very dirty or covered
with ice.▷When sensors are covered in snow.▷On rough road surfaces.▷On uneven surfaces, such as speed
bumps.▷In large buildings with right angles and
smooth walls, e.g., in underground ga‐
rages.▷Through heavy pollution.▷Due to other ultrasound sources, e.g.,
sweeping machines, high pressure steam
cleaners or neon lights.
Malfunction
A Check Control message is displayed.
The range of the sensors is shown as a shaded
area on the Control Display.
PDC has failed. Have the system checked.
To ensure full functionality:
▷Keep the sensors clean and free of ice.▷dimmedDo not put any stickers on sen‐
sors.▷When using high-pressure washers, do not
spray the sensors for long periods and
maintain a distance of at least 12 in/30 cm.
Surround View
The concept Surround View comprises various camera as‐
sistance systems that help the driver when
parking, maneuvering, and at complex exits
and intersections.
▷Rearview camera, refer to page 150▷Side View, refer to page 153.▷Top View, refer to page 154.
Rearview camera
The concept The rearview camera provides assistance in
parking and maneuvering backwards. The area
behind the vehicle is shown on the Control
Display.
Hints Check the traffic situation as well
Check the traffic situation around the ve‐
hicle with your own eyes. Otherwise, an acci‐
dent could result from road users or objects
that are not lidtured by the camera.◀
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At a glance
Button in the vehicle
Rearview camera
Camera
The camera lens is located in the handle of the
trunk lid. The image quality may be impaired
by dirt.
Clean the lens, refer to page 231.
Switching on/off
Switching on automatically With the engine running, engage lever in posi‐
tion P R.
Automatic deactivation during forward
travel
The system switches off when a certain driving
distance or speed is exceeded.
Switch the system back on if needed.
Switching on/off manually
Press button.▷On: the LED lights up.▷Off: the LED goes out.
The PDC is shown on the Control Display.
The rearview camera image is displayed when
the reverse gear is engaged by pressing the
button.
Switching the view via iDrive With PDC activated or Top View switched on:
"Rear view camera"
The rearview camera image is displayed.
Display on the Control Display
Functional requirement
▷The rearview camera is switched on.▷The trunk lid is fully closed.
Activating assistance functions
More than one assistance function can be ac‐
tive at the same time.
▷Parking aid lines
"Parking aid lines"
Lanes and turning radius are indicated.
▷Obstacle marking
"Obstacle marking"
Spatially-shaped markings are displayed.
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Pathway lines▷Pathway lines can be superimposed on the
image of the rearview camera.▷They help you to estimate how much
space is needed when parking and maneu‐
vering on level pavement.▷They are dependent on the current steer‐
ing angle and are continuously adjusted to
the steering wheel movements.
Turning circle lines
▷Turning circle lines can only be superim‐
posed on the rearview camera image to‐
gether with pathway lines.▷They show the course of the smallest pos‐
sible turning radius on a level road.▷Only one turning radius line is displayed af‐
ter the steering wheel is turned past a cer‐
tain angle.Obstacle marking
Obstacle markings can be faded into the image
of the rearview camera.
Their colored margins match the markings of
the PDC. This simplifies estimation of the dis‐
tance to the object shown.
Parking using pathway and turning
radius lines
1.Position the vehicle so that the turning ra‐
dius lines lead to within the limits of the
parking space.2.Turn the steering wheel to the point where
the pathway line covers the corresponding
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Display settings
Brightness
With the rearview camera switched on:1. Select the symbol.2.Turn the controller until the desired setting
is reached, and press the controller.
Contrast
With the rearview camera switched on:
1. Select the symbol.2.Turn the controller until the desired setting
is reached, and press the controller.
System limits
Detection of objects
Very low obstacles as well as high, protruding
objects such as ledges may not be detected by
the system.
Assistance functions also take into account
data of the PDC.
Follow instructions in the PDC chapter, refer to
page 148.
The objects displayed on the Control Display
under certain circumstances are closer than
they appear. Do not estimate the distance from
the objects on the display.
Side View The concept Side View provides an early look at cross traffic
at blind driveways and intersections. Road
users concealed by obstacles to the left and
right of the vehicle can only be detected rela‐
tively late from the driver's seat. To improve
visibility, two cameras in the front of the vehi‐
cle record the traffic situation on each side.
Hints
The images from both cameras are shown si‐
multaneously on the Control Display.
Check the traffic situation as well
Check the traffic situation around the ve‐
hicle on blind driveways and intersections with
your own eyes. Otherwise, an accident could
result from road users or objects located out‐
side the picture area of the Side View cam‐
eras.◀
At a glance
Button in the vehicle
Side View
Cameras
Two cameras integrated in the bumpers lidture
the image.
The two camera lenses are located on the
sides of the bumper.
The image quality may be impaired by dirt.
Clean the lens, refer to page 231.
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