Detection range
The detection capacity of the system and the
automatic braking capacity are limited.
Two-wheeled vehicles driving ahead of you
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 actively, if necessary; otherwise,
there is the danger of an accident occurring.◀
Deceleration
The system does not decelerate when a sta‐
tionary obstacle is located in the same lane, e.g.,
a vehicle at a red traffic light or at the end of traffic
congestion.
The system also does not respond to:
▷Pedestrians or similarly slow road users.
▷Red traffic lights.
▷Stationary objects.
▷Cross traffic.
▷Approaching traffic.
No warnings
A warning may not be issued when ap‐
proaching a stationary or very slow-moving ob‐
stacle. You must react yourself; otherwise, there
is the danger of an accident occurring.◀
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 vehi‐
cle driving ahead of you is reliably detected, the
system requests that the driver intervene by
braking and carrying out evasive maneuvers, if
necessary. You must react yourself; otherwise,
there is the danger of an accident occurring.◀
Unexpected lane change
If a vehicle ahead of you unexpectedly moves
into another lane from behind a stopped vehicle,
you yourself must react, as the system does not
react to stopped vehicles.
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▷Off: the LED goes out.
The state is stored for the remote control cur‐
rently in use.
Configuring the warning time
After the warning function is switched on, the
warning time can be set via the iDrive. For a late
warning time, prewarning is deactivated.
These settings have no effect on the time of the
warning from the Active Cruise Control that
prompts the driver to intervene or brake.
Display in the instrument cluster
The collision warning can be issued in the in‐
strument cluster, in the Head-up Display, and
acoustically.
Warning stages
Symbol Measure
The vehicle lights up red: prewarn‐
ing.
Increase distance.
The vehicle flashes red and an
acoustic signal sounds: acute warn‐
ing.
You are requested to intervene by
braking or making an evasive maneu‐
ver.
Adapting your speed and driving style
The display does not relieve the driver of
the responsibility to adapt his or her driving
speed and style to the traffic conditions.◀
System limits
Be alert
Due to system limitations, warnings may
be not be issued at all, or may be issued late or
improperly. Therefore, always be alert and ready
to intervene; otherwise, there is the danger of an
accident occurring.◀
Detection range
The detection capacity of the camera and the
collision warning has limitations.
This may result in the warning not being issued
or being issued late.
For example, the following situations may not be
detected:
▷Slow moving vehicles when you approach
them at high speed.
▷Vehicles that suddenly swerve in front of you
or sharply decelerating vehicles.
▷Vehicles with an unusual rear appearance.
▷Two-wheeled vehicles ahead of you.
Functional limitations
The system may not be fully functional in the
following situations:
▷In heavy fog, rain, sprayed water or snowfall.
▷In tight curves.
▷If the camera view field or the front wind‐
shield are dirty or covered.
▷When driving toward bright lights.
▷In the case of vehicles with insufficiently visi‐
ble tail lamps.
▷In the case of partially covered vehicles.
▷Up to 10 seconds after the start of the en‐
gine, via the Start/Stop knob.
▷During the calibration process of the camera
immediately after vehicle shipment.
Prewarning sensitivity
Depending on the set prewarning time, this may
result in increased false warnings.
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Camera
The camera is located near the base of the mir‐
ror.
Keep windshield clean and clear in the area in
front of the interior rear view mirror.
Collision warning with
braking function
The concept
If the vehicle is equipped with Active Cruise
Control with Stop & Go, the collision warning is
controlled via the cruise control radar sensor.
The system issues a two-phase warning of a
danger of collision at speeds above approx.
10 mph/15 km/h. The time of these warnings
may vary depending on the current driving sit‐
uation.
The collision warning is available even if cruise
control has been deactivated.
It responds to stationary or moving objects that
are within the detection range of the radar sys‐
tem.
When the vehicle is intentionally brought into
contact with a vehicle, the collision warning is
delayed to avoid false warnings.
Warning stages
Prewarning
This warning is issued, for example, when there
is the impending danger of a collision or the dis‐
tance to the vehicle ahead is too small.
Acute warning with braking function
Warning of the imminent danger of a collision
when the vehicle approaches another object at
a relatively high differential speed.
The acute warning prompts the driver to inter‐
vene and, if there is the danger of a collision, is
accompanied by a braking intervention.
The braking intervention is executed with lim‐
ited braking force and for a brief period only. The
intervention cannot bring the vehicle to a com‐
plete standstill.
The braking intervention is executed only if DSC
Dynamic Stability Control is switched on.
Adapting your speed and driving style
The acute warning does not relieve the
driver of the responsibility to adapt his or her
driving speed and style to the traffic condi‐
tions.◀
The braking intervention can be interrupted by
pressing on the accelerator or by actively mov‐
ing the steering wheel.
When towing or tow-starting the vehicle, switch
off the collision warning with braking function to
prevent undesired interventions.
The braking function is deactivated if the DSC
Dynamic Stability Control or DTC Dynamic
Traction Control is deactivated.
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Switching the warning function on/off
Press the button
▷On: the LED lights up.
▷Off: the LED goes out.
The state is stored for the remote control cur‐
rently in use.
Configuring the warning time
After the warning function is switched on, the
warning time can be set via the iDrive. For a late
warning time, prewarning is deactivated.
These settings have no effect on the time of the
warning from the Active Cruise Control that
prompts the driver to intervene or brake.
Display in the instrument cluster
The collision warning can be issued in the in‐
strument cluster, in the Head-up Display, and
acoustically.
Warning stages
Symbol Measure
The vehicle lights up red: prewarn‐
ing.
Increase distance.
The vehicle flashes red and an
acoustic signal sounds: acute warn‐
ing.
You are requested to intervene by
braking or making an evasive maneu‐
ver.
Adapting your speed and driving style
The display does not relieve the driver of
the responsibility to adapt his or her driving
speed and style to the traffic conditions.◀
System limits
Be alert
Due to system limitations, warnings may
be not be issued at all, or may be issued late or
improperly. Therefore, always be alert and ready
to intervene; otherwise, there is the danger of an
accident occurring.◀
Detection range
The detection capacity of the radar sensor and
the collision warning has limitations.
This may result in the warning not being issued
or being issued late.
For example, the following situations may not be
detected:
▷Slow moving vehicles when you approach
them at high speed.
▷Vehicles that suddenly swerve in front of you
or sharply decelerating vehicles.
▷Vehicles with an unusual rear appearance.
▷Two-wheeled vehicles ahead of you.
▷Pedestrians.
Functional limitations
The system may not be fully functional in the
following situations:
▷In heavy fog, rain, sprayed water or snowfall.
▷In tight curves.
▷If the radar sensor is dirty or covered.
Prewarning sensitivity
Depending on the set prewarning time, this may
result in increased false warnings.
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2.Turn the steering wheel to the point where
the pathway line covers the corresponding
turning circle line.
Obstacle marking
▷Spatially-shaped markings can be shown in
the backup camera image.
Their colored steps match the markings of the
PDC. This simplifies estimation of the distance
to the object shown.
Activating the assistance functions
More than one assistance function can be active
at the same time.
Showing the parking aid lines
"Parking aid lines"
Pathway and turning circle lines are displayed.
Showing the obstacle marking
"Obstacle marking"
Spatially-shaped markings are displayed.
Display on the Control Display
Switching on the backup camera via
iDrive
With PDC activated:
"Rear view camera"
The backup camera image is displayed. The set‐
ting is stored for the remote control currently in
use.
Brightness
With the backup camera switched on:
1. Select the symbol.
2.Turn the controller until the desired setting
is reached and press the controller.
Contrast
With the backup camera switched on:
1. Select the symbol.
2.Turn the controller until the desired setting
is reached and press the controller.
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 299.
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Special windshield
The windshield is part of the system.
The shape of the windshield makes it possible
to display a precise image.
A film in the windshield prevents double images
from being displayed.
Therefore, have the special windshield replaced
by a service center only.
Parking assistant
The concept
This system assists the driver in parking parallel
to the road.
Ultrasound sensors measure parking spaces on
both sides of the vehicle.
The parking assistant calculates the best pos‐
sible parking line and takes control of steering
during the parking procedure.
When parking, also take note of the visual and
acoustic information issued by the PDC and the
parking assistant and accelerate or brake ac‐
cordingly.
A component of the parking assistant is the PDC
Park Distance Control, refer to page 121.
Personal responsibility
The parking assistant does not relieve the
driver of responsibility for the vehicle during the
parking procedure.
Watch the parking space and parking procedure
closely and intervene if necessary; otherwise,
there is the danger of an accident.◀
Requirements
For measuring parking spaces
▷Maximum speed while driving forward ap‐
prox. 22 mph/35 km/h.
▷Maximum distance to row of parked vehi‐
cles: 5 ft/1.5 m.
Suitable parking space
▷Gap between two objects with a minimum
length of approx. 5 ft/1.5 m.
▷Minimum length: own vehicle length plus
approx. 4 ft/1.2 m.
▷Minimum depth: approx. 5 ft/1.5 m.
For parking procedure
Closed doors.
Switching on
Using the button
Press the button.
The LED lights up.
The current status of the parking space search
is indicated on the Control Display.
Parking assistant is activated automatically.
By engaging reverse
The current status of the parking space search
is indicated on the Control Display.
Activate: "Parking Assistant" Select the
symbol in the Control Display.
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Display on the Control Display
Activating/deactivating systems
Symbol Meaning
Gray: the system is not available.
White: the system is available but not
activated.
The system is activated.
System status
Gray: the system is not activated.
Parking space search.
Blue: the system is activated. A
suitable parking space was
found.
The parking procedure is active.
Steering control has been seized.
Status of the parking space search
▷Gray, arrow 1: parking space search.
▷Blue, arrow 2: parking space is suitable.
The vehicle is parked in the parking space if
the parking procedure is active.
▷No display: no parking space search.
Parking using the parking assistant
Personal responsibility
The parking assistant does not relieve the
driver of responsibility for the vehicle during the
parking procedure.
Watch the parking space and parking procedure
closely and intervene if necessary; otherwise,
there is the danger of an accident.◀
Check the traffic situation as well
Loud sounds outside and within the vehi‐
cle can drown out the signal tones of the parking
assistant and PDC.
Check the traffic situation around the vehicle
with your own eyes; otherwise, there is the dan‐
ger of an accident.◀
1.Switch on the parking assistant and activate
it if necessary.
The status of the parking space search is in‐
dicated on the Control Display.
2.Follow the instructions on the Control Dis‐
play.
The end of the parking procedure is indi‐
cated on the Control Display.
3.Adjust the parking position yourself if nec‐
essary.
Notes
▷The parking assistant takes control of steer‐
ing for as long as the symbol for active park‐
ing appears on the display.
▷The system maneuvers the vehicle to posi‐
tion it properly in smaller parking spaces, for
example.
▷To achieve the best possible parking posi‐
tion, wait for the automatic steering wheel
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movement after the gear change when the
vehicle is stationary.
▷When parking in parking spaces on the driv‐
er's side, the corresponding turn signal must
be set.
Interrupting manually
The parking assistant can be interrupted at any
time by:
▷Grasping the steering wheel and steering
yourself.
▷ "Parking Assistant" Select the symbol on
the Control Display.
Interrupting automatically
The procedure is interrupted automatically:
▷If the vehicle speed exceeds approx. 6 mph/
10 km/h.
▷On snow-covered or slippery road surfaces
if necessary.
▷If doors are open.
A Check Control message is displayed.
Continuing
An interrupted parking procedure can be con‐
tinued if necessary.
Follow the instructions on the Control Display to
do this.
Switching off
The system can be deactivated as follows:
▷Press the button.
▷Switch off the ignition.
Malfunction
A Check Control message is displayed.
The parking assistant failed. Have the system
checked.
System limits
Changes to the parking space
Changes to the parking space after it was
measured are not taken into account by the sys‐
tem.
Therefore, always be alert and ready to inter‐
vene; otherwise, there is the danger of an acci‐
dent occurring.◀
Transporting loads
Loads that extend beyond the perimeter
of the vehicle are not taken into account by the
system during the parking procedure.
Therefore, always be alert and ready to inter‐
vene; otherwise, there is the danger of an acci‐
dent occurring.◀
Curbs
The parking assistant may steer the vehi‐
cle over or onto curbs.
Therefore, always be alert and ready to inter‐
vene; otherwise, the wheels, tires, or the vehicle
may become damaged.◀
No parking assistance
The parking assistant does not provide assis‐
tance in parking.
▷In tight curves.
Functional limitations
The system may not be fully functional in the
following situations:
▷When sensors are dirty or iced over.
▷In heavy fog, rain or snowfall.
▷On bumpy road surfaces such as gravel
roads.
▷When leaves or snow has collected in the
parking space.
Limits of ultrasonic measurement
The detection of objects can reach the physical
limits of ultrasonic measurement, e.g.:
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