Functional limitations
The system may not be fully functional or may
not be available in the following situations:▷In heavy fog, rain, sprayed water or snow‐
fall.▷In tight curves.▷If the driving stability control systems are
deactivated, for example DSC OFF.▷If the field of view of the camera or the
windshield are dirty or covered.▷Up to 10 seconds after the start of the en‐
gine, via the Start/Stop button.▷During calibration of the camera immedi‐
ately after vehicle delivery.▷If there are constant blinding effects be‐
cause of oncoming light, e.g., from the sun
low in the sky.▷When it is dark outside.
Lane departure warning
The concept Starting at a specific speed, this system alerts
you when the vehicle on streets with lane
markings is about to leave the lane. This
speed, depending on the country version, is
between 35 mph/55 km/h and
45 mph/70 km/h.
When switching on the system below this
speed, a message is displayed in the instru‐
ment cluster.
The steering wheel begins vibrating gently in
the event of warnings. The time of the warning
may vary depending on the current driving sit‐
uation.
The system does not provide a warning if the
turn signal is set before leaving the lane.
Information
WARNING
The system does not release the driver
from the personal responsibility to correctly
assess route and traffic situation. There is risk
of an accident. Adjust the driving style to the
traffic conditions. Watch traffic closely and ac‐
tively intervene in the respective situations. In
the event of a warning, do not unnecessarily
jerk the steering wheel.◀
Overview
Button in the vehicle
Lane departure warning
Camera
The camera is installed near the interior mirror.
Keep the windshield in the area behind the in‐
terior mirror clean and clear.
Switching on/off Press button.
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tion, it is recommended that the driver takes a
break.
Information WARNING
The system does not release from the
personal responsibility to correctly assess
one's physical state. An increasing lack of
alertness or fatigue may not be detected or not
be detected in time. There is risk of an acci‐
dent. Make sure that the driver is rested and
alert. Adjust the driving style to the traffic con‐
ditions.◀
Function
The system is activated each time the engine
is started and cannot be switched off.
After travel has begun, the system is trained
about the driver, so that decreasing alertness
or fatigue can be detected.
This procedure takes the following criteria into
account:▷Personal driving style, for example, steer‐
ing behavior.▷Driving conditions, for example, length of
trip.
Starting at approximately 43 mph/70 km/h, the
system is active and can display a recommen‐
dation to take a break.
Break recommendation
If the driver becomes less alert or fatigued, a
message is displayed in the Control Display
with the recommendation to take a break.
A recommendation to take a break is displayed
only once during an uninterrupted trip.
After a break, another recommendation to take
a break cannot be displayed until after approxi‐
mately 45 minutes.
System limits
The function may be limited in the following
situations, for instance, and will either output
an incorrect warning or no warning at all:▷When the clock is set incorrectly.▷When the vehicle speed is mainly below
about 43 mph/70 km/h.▷With a sporty driving style, such as during
rapid acceleration or when cornering fast.▷In active driving situations, such as when
changing lanes frequently.▷When the road surface is poor.▷In the event of strong side winds.
The system is reset approx. 45 minutes after
parking the vehicle, e.g. in the case of a break
during longer trips on highways.
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Driving stability control systemsVehicle features and optionsThis chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Anti-lock Braking System
ABS
ABS prevents locking of the wheels during
braking.
The vehicle contains its steering power even
during full brake applications, thus increasing
active safety.
ABS is operational every time you start the en‐
gine.
Brake assistant When you apply the brakes rapidly, this system
automatically produces the greatest possible
braking force boost. It reduces the braking dis‐
tance to a minimum during emergency stop.
This system utilizes all of the benefits provided
by ABS.
Do not reduce the pressure on the brake pedal
for the duration of the emergency stop.DSC Dynamic Stability
Control
The concept Within the physical limits, the system helps to
keep the vehicle on a steady course by reduc‐
ing engine speed and by applying brakes to
the individual wheels.
General information Dynamic Stability Control detect for example
the following unstable driving conditions:▷Fishtailing, which can lead to oversteering.▷Loss of traction of the front wheels, which
can lead to understeering.
Information
The laws of physics cannot be repealed, not
even with DSC.
WARNING
The system does not release from the
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. There is risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic closely and actively intervene in the re‐
spective situations.◀
WARNING
When driving with roof load, e.g., with
roof-mounted luggage rack, driving safety may
not be ensured in driving-critical situations due
to the elevated center of gravity. There is risk
of accidents or risk of property damage. Do not
deactivate Dynamic Stability Control DSC
when driving with roof load.◀
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Overview
Button in the vehicle
DSC OFF button
Indicator/warning lights The indicator lamp flashes: DSC con‐
trols the drive and braking forces.
The indicator lamp lights up: DSC has
failed.
Deactivating DSC: DSC OFF
General information
When DSC is deactivated, driving stability is
reduced during acceleration and when driving
in curves.
To increase vehicle stability, activate DSC
again as soon as possible.
Deactivating DSC Press and hold this button but not longer
than approx. 10 seconds, until the indica‐
tor lamp for DSC OFF lights up in the instru‐
ment cluster and displays DSC OFF.
DSC is switched off.
Engine tuning switches to a sportier setting.
Activating DSC Press button.
DSC OFF and the DSC OFF indicator lamp go
out.
Indicator/warning lights When DSC is deactivated, DSC OFF is dis‐
played in the instrument cluster.
The indicator lamp lights up: DSC is
deactivated.
M Dynamic Mode MDM
The concept M Dynamic Mode makes it possible to drive on
a dry roadway with high longitudinal and trans‐
verse acceleration but with limited driving sta‐
bility.
Only in the absolute limit area does the system
intervene for stabilization by reducing the en‐
gine power and by braking interventions on the
wheels. In this driving condition, additional
steering corrections may be necessary.
You may find it useful to briefly activate MDM
under the following special circumstances:▷When driving in slush or on uncleared,
snow-covered roads.▷When freeing vehicle from deep snow or
driving off from loose grounds.▷When driving with snow chains.
Information
WARNING
When M Dynamic Mode is activated, sta‐
bilizing interventions are carried out only to a
reduced extent. There is a risk of accidents or
a risk of property damage. Adapt to traffic con‐
ditions. Watch traffic closely and actively inter‐
fere in the respective situations. In the event of
a warning, do not unnecessarily jerk the steer‐
ing wheel.◀
To increase vehicle stability, activate DSC
again as soon as possible.
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Activating MDMPress button briefly.
The DSC OFF indicator lamp is illumi‐
nated and TRACTION is displayed in the in‐
strument cluster.
Deactivating MDM Press button.
DSC OFF indicator lamp and TRACTION
indicator are no longer illuminated.
Indicator/warning lights Indicator lamp is illuminated and
TRACTION is displayed in the instru‐
ment cluster:
M Dynamic Mode is activated.
DSC indicator lamp also flashes:
M Dynamic Mode controls the drive
forces and brake forces.
Indicator lights light up:
M Dynamic Mode or DSC has failed.
Active M differential The concept The active M differential assures continuously
variable locking of the rear axle differential de‐
pending on the driving situation. This prevents individual rear wheels from spinning even
when DSC is switched off and in M Dynamic
Mode, so that optimum traction is always as‐
sured in all driving situations.
The driver is responsible adapting his or her
driving behavior to the situation.Servotronic
The concept
The Servotronic varies the steering force re‐
quired to turn the wheels in accordance with
the vehicle speed. At low speeds, the steering
force is strongly supported, i. e. during steer‐
ing, low force is required. As the speed in‐
creases, the assistance of the steering force is
reduced.
Furthermore, the steering force adapts accord‐
ing to the driving program, so that a direct,
sporty feel and/or comfortable steering is con‐
veyed.
Programs Steering force setting options:▷COMFORT: low.▷SPORT: high.▷SPORT+: high.
Selecting a channel
The desired channel is selected using the Driv‐
ing Dynamics Control, refer to page 116.
Driving Dynamics Control The conceptThe Driving Dynamics Control helps to fine-
tune the vehicle's settings and features. Vari‐
ous programs can be selected for this purpose.
The Driving Dynamics Control and the DSC
OFF buttons can each be used to activate a
program.
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Driving comfortVehicle features and options
This chapter describes all standard, country-
specific and optional features offered with the
series. It also describes features that are not
necessarily available in your car, e. g., due to
the selected options or country versions. This
also applies to safety-related functions and
systems. The respectively applicable country
provisions must be observed when using the
respective features and systems.
Cruise control The concept Using this system, a desired speed can be ad‐
justed using the buttons on the steering wheel.
The system maintains the desired speed. The system accelerates and brakes automatically
as needed.
General information Depending on the driving settings, the features
of the cruise control can change in certain
areas.
Information WARNING
The system does not release from the
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. There is risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic closely and actively intervene in the re‐
spective situations.◀
WARNING
The use of the system can lead to an in‐
creased risk of accidents in the following situa‐
tions:▷On winding roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
There is risk of accidents or risk of property
damage. Only use the system if driving at con‐
stant speed is possible.◀
WARNING
The desired speed can be incorrectly ad‐
justed or called up by mistake. There is risk of
an accident. Adjust the desired speed to the
traffic conditions. Watch traffic closely and ac‐
tively intervene in the respective situations.◀
Overview
Buttons on the steering wheel
Press but‐
tonFunctionCruise control on/off, interrupt‐
ing, refer to page 119.Store speed, refer to
page 120.Call up speed, continue cruise
control, refer to page 121.Rocker switch: adjust speed,
refer to page 120.
Switching on/off and interrupting
cruise control
Switching on Press button on the steering wheel.
The marking in the speedometer is set to the
current speed.
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▷Visual display.
General information
Measurements are made through ultrasound
sensors in the rear bumper.
The maneuvering range, depending on the ob‐
stacle and environmental conditions, is approx.
6 ft/2 m.
An acoustic warning is first given with the fol‐
lowing circumstances:
▷By the two rear corner sensors at approx.
24 in/60 cm.▷By the rear middle sensors at approx.
5 ft/1.50 m.▷When a collision is imminent.
Information
WARNING
The system does not release from the
personal responsibility to correctly assess the
traffic situation. Based on the limits of the sys‐
tem, it cannot independently react to all traffic
situations. There is risk of an accident. Adjust
the driving style to the traffic conditions. Watch
traffic closely and actively intervene in the re‐
spective situations.◀
WARNING
Due to high speeds when PDC is acti‐
vated, the warning can be delayed due to
physical circumstances. There is a risk of injury
or risk of property damage. Avoid approaching
an object too fast. Avoid driving off fast while
PDC is not yet active.◀
Overview
Ultrasound sensors Ultrasound sensors of the PDC,
for example in the bumpers.
Functional requirements
To ensure full functionality:▷Do not cover sensors, for example, with
stickers, bicycle racks.▷Keep the sensors clean and free of ice.
To clean: when using high-pressure washers,
do not spray the sensors for long periods and
maintain a distance of at least 12 in‐
ches/30 cm.
Switching on/off
Switching on automatically
With the engine running, engage lever in posi‐
tion P R.
The rearview camera also switches on.
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.
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 inches/25 cm, a continuous tone is
sounded.
Volume The ratio of the PDC signal tone volume to the
entertainment volume can be adjusted.
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As soon as the malfunction due to other ultra‐
sound sources is no longer present, the sys‐
tem is again fully functional.
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.
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.
Information WARNING
The system does not relieve from the
personal responsibility to correctly assess the
traffic situation. There is risk of an accident.
Adjust the driving style to the traffic condi‐
tions. Watch traffic and vehicle surroundings
closely and actively intervene in the respective
situations.◀Overview
Camera
The camera lens is located in the handle of the
tailgate. The image quality may be impaired by
dirt.
Clean the camera lens, refer to page 202.
Switching on/off
Switching on automatically With the engine running, engage lever in posi‐
tion P R.
The rearview camera image is displayed if the
system was switched on via the iDrive.
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 the view via iDrive With PDC activated:
"Rear view camera"
The rearview camera image is displayed.
Display on the Control Display
Functional requirement
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