Press and hold the button, but not lon‐
ger than approx. 10 seconds, until the
indicator lamp for DSC lights up in the instru‐
ment cluster and DSC OFF is displayed. DTC
Dynamic Traction Control and DSC are deacti‐
vated together.
In the interest of better forward momentum,
brake intervention is performed in the manner
of a differential lock when the drive wheels spin
quickly even if DSC is deactivated.
Activating DSC Press the button.
DSC OFF and the indicator lamp in the
instrument cluster go out.
For better control The indicator lamp flashes: DSC con‐
trols the drive forces and brake forces.
The indicator lamp lights up: DSC and
DTC has failed.
DSC deactivated: The indicator lamp lights up and
DSC OFF appears in the instrument
cluster.
DSC and DTC deactivated.
Dynamic Traction Control
DTC
The concept The DTC system is a version of the DSC in
which forward momentum is optimized.
The system ensures maximum forward mo‐
mentum on special road conditions, e.g., unp‐
lowed snowy roads, but driving stability is lim‐
ited.
It is therefore necessary to drive with appropri‐
ate caution.
You may find it useful to briefly activate DTC
under the following special circumstances:▷When driving in sand, on snowy inclines, in
slush, or on unplowed, snow-covered road
surfaces▷When rocking a vehicle free or starting off
in deep snow, sand, or on loose ground▷When driving with snow chains.
Deactivating/activating DTC Dynamic
Traction Control
Activating the Dynamic Traction Control DTC
provides maximum traction on loose ground.
Driving stability is limited during acceleration
and when driving in bends.
Activating DTC
Press the button.
TRACTION is displayed in the instru‐
ment cluster and the indicator lamp for
DSC OFF lights up.
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Deactivating DTCPress the button again.
TRACTION and the indicator lamp in
the instrument cluster go out.
For better control The indicator lamp flashes: DTC con‐
trols the drive forces and brake forces.
The indicator lamp lights up: DSC and
DTC has failed.
DTC activated: The indicator lamp lights up and
TRACTION appears in the instrument
cluster.
DTC is activated.
Performance Control
Performance Control enhances the agility of
your vehicle. To enhance performance during
sporty driving, the rear wheel on the inside of
the curve is braked while the resulting braking
effect is largely compensated by engine inter‐
vention.
xDrivexDrive is the all-wheel-drive system of your ve‐
hicle. The combined effects of xDrive and DSC
further optimize the traction and dynamic driv‐
ing characteristics. The 4-wheel drive system
xDrive variably distributes the drive forces to
the front and rear axle depending on the driv‐
ing situation and prevailing road conditions.
Hill Descent Control HDC
The concept HDC is a downhill driving assistant that auto‐
matically controls vehicle speed on steep
downhill gradients. Without requiring brake ap‐
plication, the vehicle moves at slightly more
than twice walking speed.
You can activate the Hill Descent Control at
speeds below approx. 22 mph/35 km/h. When
driving downhill at below approx.
22 mph/35 km/h, the vehicle reduces its speed
to approx. twice walking speed and keeps it
constant.
While you are actively braking, the system is
on standby. The system does not brake the
vehicle during this time.
Increasing or reducing speed
The speed can be changed in the range from
roughly twice walking speed to approx.
15 mph/25 km/h by pressing the accelerator or
brake pedal lightly.
A target speed within the same range can be
specified using the lever of the cruise control.1Increasing speed2Decreasing speedSeite 99Driving stability control systemsControls99
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Activating HDC
Press the button; the LED above the
button lights up.
The LED flashes when the brakes are applied
automatically.
Deactivating HDC Press the button again; the LED goes
out. HDC is automatically deactivated
above approx. 37 mph/60 km/h.
Using HDC
HDC can be used in every driving position.
Displays in the instrument cluster
1Display for target speed2HDC display
Malfunction
If the HDC display goes out during HDC opera‐
tion or is not displayed: HDC is not available
due to high brake temperatures or DSC has
failed.
Drive-off assistant
This system supports driving away on gradi‐
ents. The handbrake is not required.1.Hold the vehicle in place with the foot
brake.2.Release the foot brake and drive away
without delay.
Depending on the vehicle load, the vehicle may
roll back slightly.
Driving off without delay
After releasing the foot brake, start driv‐
ing without delay, since the drive-off assistant
will not hold the vehicle in place for more than
approx. 2 seconds and the vehicle will begin
rolling back.◀
Servotronic The conceptThe Servotronic varies the steering force re‐
quired to turn the wheels depending on the
speed at which you are driving.
Power steering provides strong support at low
speeds, which means that less effort is needed
to turn the wheels. Power steering support
lessens as your speed increases.
Malfunction The warning lamp lights up.A mes‐
sage appears on the Control Display.
Servotronic is malfunctioning or has
failed. Have the system checked as soon as
possible.
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Driving comfortVehicle equipment
This chapter describes all series equipment as
well as country-specific and special equipment
offered for this model series.Therefore, it also
describes equipment that may not be found in
your vehicle, for instance due to the selected
special equipment or the country version. This
also applies to safety-related functions and
systems.
Cruise controlThe concept
The system is functional at speeds beginning
at approx. 20 mph/30 km/h.
The speed specified using the lever on the
steering column is maintained.
The system brakes on downhill gradients if en‐
gine braking action is insufficient.
Do not use cruise control
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.◀
One lever for all functions1Storing and maintaining speed or acceler‐
ating2Storing and maintaining speed or deceler‐
ating3Deactivating cruise control4Resuming a speed stored beforehand
Maintaining current speed
Push, arrow 1, or pull, arrow 2, the lever to the
resistance point.
The car's current speed is stored and main‐ tained. It is displayed on the speedometer and
briefly in the instrument cluster.
On uphill gradients, it may prove impossible to
maintain the set speed if current engine power
output is insufficient. If the engine braking ef‐
fect is insufficient on downhill slopes, the sys‐
tem will brake the vehicle slightly.
Increasing desired speed
Repeatedly press the lever to the resistance
point or beyond, arrow 1, until the desired
speed is reached.
▷Each time the lever is pressed to the point
of resistance, the desired speed increases
by approx. 1 mph/1 km/h.▷Each time the lever is pressed beyond the
resistance point, the desired speed is in‐
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The system stores and maintains the speed.
Accelerating using the lever Accelerating slightly:
Press the lever to the resistance point, arrow 1,
until the desired speed is reached.
Accelerating significantly:
Press the lever beyond the resistance point,
arrow 1, until the desired speed is reached.
The vehicle accelerates without pressure on
the accelerator pedal. The system stores and
maintains the speed.
Decreasing speed
Repeatedly pull the lever to the resistance
point or beyond, arrow 2, until the desired
speed is displayed.▷Each time the lever is pulled to the resist‐
ance point, the desired speed is decreased
by approx. 1 mph/1 km/h.▷Each time the lever is pulled beyond the
resistance point, the desired speed is re‐
duced by up to 5 mph/10 km/h until the
minimum speed of 20 mph/30 km/h is ach‐
ieved.
The system stores and maintains the speed.
Deactivating cruise control
Push the lever upwards or downwards, ar‐
row 3.
The displays in the speedometer go out.
In addition, the system is automatically deacti‐
vated when:
▷The brakes are applied.▷Selector lever position N is engaged or
transmission position D is disengaged.▷When DTC is activated or DSC is deacti‐
vated.▷When DSC or ABS is intervening.
Cruise control is not deactivated by depressing
the accelerator pedal. Once the accelerator
pedal is released, the stored speed is achieved
again and maintained.
Warning lamp The warning lamp comes on when
cruise control has been deactivated
as a result of DSC intervention, for
example. A message appears on the Control
Display.
Resuming a speed stored beforehand Press the button, arrow 4. The last stored
speed is resumed and maintained.
In the following cases, the stored speed value
is deleted and cannot be called up again:▷When driving stability control systems in‐
tervene.▷When selector lever position N is engaged
or transmission position D is disengaged.▷When the ignition is switched off.
Displays in the instrument cluster
1Stored speed2Selected speed is displayed briefly
If the display --- mph or --- km/h appears
briefly, conditions may not be adequate to op‐
erate the system.
Call up Check Control messages, refer to
page 81.
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MalfunctionThe warning lamp lights up. The sys‐
tem is malfunctioning or has failed.
A message appears on the Control
Display. More information, refer to page 80.
Park Distance Control PDC
The concept In addition to the PDC Park Distance Control,
the backup camera, refer to page 105, can be
switched on.
PDC supports you when parking. A slow ap‐
proach to an object in front of or behind your
vehicle is announced by:▷Signal tones.▷Visual display.
Measurement
Measurements are made by ultrasound sen‐
sors in the bumpers.
The range is approx. 6 ft/2 m.
An acoustic warning is first given:
▷By the front sensors and two rear corner
sensors at approx. 24 in/60 cm.▷By the rear middle sensors at approx.
5 ft/1.50 m.
System limits
Check the traffic situation as well
PDC cannot serve as a substitute for the
driver's personal judgment of the traffic situa‐
tion. Check the traffic situation around the ve‐
hicle with your own eyes. Otherwise, an acci‐
dent could result from road users or objects
located outside of the PDC detection range.
Loud noises from outside and inside the vehi‐
cle may prevent you from hearing the PDC's
signal tone.◀
Avoid driving quickly with PDC
Avoid approaching an object quickly.
Avoid driving away quickly while PDC is not yet
active.
For technical reasons, the system may other‐
wise be too late in issuing a warning.◀
Limits of ultrasonic measurement
The detection of objects can reach the physi‐
cal limits of ultrasonic measurement, for in‐
stance:▷With tow bars and trailer hitches.▷With thin or wedge-shaped objects.▷With low objects.▷With objects with corners and sharp edges.
Low objects already displayed, e.g., curbs, can
move into the blind area of the sensors before
or after a continuous tone sounds.
High, protruding objects such as ledges may
not be detected.
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 in
ice.▷When sensors are covered in snow.▷On rough road surfaces.▷In large buildings with right angles and
smooth walls, e.g., in underground ga‐
rages.▷In heavy exhaust.▷Due to other ultrasound sources, e.g.,
sweeping machines, high pressure steam
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Switching on automaticallyWith the engine running or the ignition
switched on, shift the selector lever into posi‐
tion R.
Switching off automatically when
driving forward
The system switches off when a certain dis‐
tance or speed is exceeded.
Switch on the system again if necessary.
Switching on/off manually
Press the button.
▷On: the LED lights up.▷Off: the LED goes out.
Signal tonesWhen approaching an object, an intermittent
tone is sounded that indicates the position of
the object. For example, if an object is de‐
tected behind the vehicle, a signal tone sounds
from the rear speakers.
The shorter the distance to the object be‐
comes, the shorter the intervals.
If the distance to a detected object is less than
approx. 12 in/30 cm, a continuous tone is
sounded.
If objects are located both in front of and be‐
hind the vehicle, an alternating continuous sig‐
nal is sounded.
The intermittent tone is interrupted after ap‐
prox. 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 transmission position P is engaged.
Volume
You can set the volume of the PDC signal tone,
refer to page 165.
The setting is stored for the remote control
currently in use.
Visual warning
The approach to an object can be shown on
the Control Display. Objects that are farther
away are displayed on the Control Display be‐
fore a signal tone sounds.
The display appears as soon as PDC is acti‐
vated.
If the last image selected was the rearview
camera, this is displayed again. To switch to
PDC:
"Switch off rear view camera"
The setting is stored for the remote control
currently in use.
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Image on the Control Display
Switching on the rear view camera
using iDrive
With PDC activated:
"Rear view camera"
The image of the rear view camera is dis‐
played. The setting is stored for the remote
control currently in use.
Malfunction
A Check Control message, refer to page 80, is
displayed in the instrument cluster.
The areas in front of and behind the vehicle ap‐
pear in shaded form on the Control Display.
PDC has failed. Have the system checked.
To ensure full operability:
▷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.
Rear view camera
The concept The rear view camera assists you when park‐
ing and maneuvering in reverse. To accom‐
plish this, the region behind your vehicle is
shown on the Control Display.
System limits
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 lo‐
cated outside the picture area of the backup
camera.◀
Detection of objects
High, protruding objects such as ledges
may not be detected by the backup camera.◀
Switching on automatically With the engine running or the ignition
switched on, shift the selector lever into posi‐
tion R.
The image of the rear view camera is displayed
when the system has been switched on using
iDrive.
Switching off automatically when
driving forward
The system switches off when a certain dis‐
tance or speed is exceeded.
Switch on the system again if necessary.
Switching on/off manually
Press the button.
▷On: the LED lights up.▷Off: the LED goes out.
If PDC is displayed, switch on the backup cam‐
era via the iDrive, refer to page 105.
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