
Driving stability control systemsVehicle equipmentThis chapter describes all standard, national
and special equipment provided in the model
series. Equipment not available in the vehicle is
therefore also described, for example the se‐
lected special equipment or national version.
This also applies to safety-relevant functions
and systems. Comply with the relevant na‐
tional regulations when using the correspond‐
ing functions and systems.
Anti-lock Brake System,
ABS
ABS prevents the wheels from locking when
the brakes are applied.
Steering control is retained even in the event
of full braking, enhancing active road safety.
ABS is ready to operate each time the engine
is started.
Brake assist When brake is pressed quickly, this system au‐
tomatically applies maximum braking power
assistance. With full braking, this keeps the
braking distance as short as possible. It also
makes full use of the advantages offered by
ABS.
Maintain pressure on the brake during the en‐
tire brake application.
M Drive
Principle Individual settings can be made in two preset
configurations for the vehicle.When starting the engine, as standard an effi‐
cient vehicle state is active. M Drive is deacti‐
vated.
Overview
Configurations
The configurations are set as follows:▷"M Drive 1": relaxed, comfortable driving.▷"M Drive 2": sportive, dynamic driving.
Setting options
SymbolMeaning Dynamic Stability Control DSC, see
page 124, and M Dynamic Mode
MDM. Programs of the M Engine Dynam‐
ics Control, see page 78. Program of the Adaptive M chassis,
see page 126. Programs of the Servotronic, see
page 127. Drivelogic, see page 76: switching
modes and Drivelogic drive pro‐
grams. Views of the Head-Up Displays, see
page 94.
Configuring M Drive
The preset configurations can be individually
set.
On the Control Display:
1."Settings"2."M Drive 1" or "M Drive 2"Seite 123Driving stability control systemsControls123
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3.Selected desired adjustment option.4.Select the desired channel.
The individual settings are stored for the cur‐
rently used profile.
With M Drive activated a change is made im‐
mediately on the Control Display setting.
Activating/deactivating M Drive
Activating Press the relevant button on the steering
wheel.
▷Activate M Drive 1▷Activate M Drive 2
If in M Drive, DSC OFF or MDM is set, a mes‐
sage appears in the instrument cluster. This
message is operated by pressing the button
again.
Deactivating Press the relevant button on the steering
wheel again.
Indicator Lights
▷Indicator light illuminates: corre‐
sponding M Drive is activated.▷Indicator light flashes: M Drive
could not be activated. Anti-block‐
ing system ABS or Dynamic Stabil‐
ity Control DSC control drive stabil‐
ity directly.
Reactivate M Drive if the indicator
stops flashing.
Information
With activated M Drive individual settings out‐
side of the M Drive can also be changed, for
example, using buttons in the centre console.
That deactivates the M Drive.
To reactivate all the settings made on the Con‐
trol Display for M Drive, briefly press one of the
following buttons:▷▷
To accept the change settings in M Drive,
press the corresponding button for a long time.
Reset M Drive Individual settings can be reset to default val‐
ues.
1."Settings"2."M Drive 1" or "M Drive 2"3."Reset M Drive 1" or "Reset M Drive 2"4."Yes"
To interrupt resetting: "No"
Dynamic Stability Control,
DSC
Principle DSC prevents the driven wheels losing traction
when you pull away from rest or accelerate.
DSC is also able to detect unstable driving
conditions such as loss of traction at the rear
or vehicle slip over the front wheels. DSC re‐
duces engine output and applies the brakes at
individual wheels, helping, within the limits im‐
posed by the laws of physics, to keep the vehi‐
cle safely on course.
Note Adapt the driving style to the situation as it is
always the driver's responsibility to adapt a
suitable driving style.
Not even DSC can overcome the laws of phys‐
ics.
Do not limit the additional safety afforded by
this system by taking driving risks.
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WARNING
When driving with a roof load, for exam‐
ple with a roof rack, the higher centre of gravity
can mean that driving safety is no longer guar‐
anteed in critical driving situations. Danger of
accident or damage to property. Do not deacti‐
vate Dynamic Stability Control DSC when driv‐
ing with a roof load.◀
Overview
Button in the vehicle
DSC OFF button
Indicator and warning lights If indicator light is flashing: DSC is reg‐ulating the acceleration and braking
forces.
If indicator light is illuminated: DSC has failed.
Deactivating DSC: DSC OFF
General Driving stability during acceleration and cor‐
nering is restricted if DSC is deactivated.
To support the driving stability, re-activate
DSC as soon as possible.
Deactivating DSC Press and hold down the button – but for
no longer than approximately 10 seconds
– until the DSC OFF indicator light in the in‐
strument cluster is illuminated and DSC OFF is
displayed.
The DSC system is switched off.
Activating DSC Press the button.
The DSC OFF and DSC OFF indicator
lights are not illuminated.
Indicator and warning lights DSC OFF is displayed in the instrument cluster
when DSC is deactivated.
If indicator light is illuminated: DSC is
deactivated.
M Dynamic Mode
M Dynamic Mode allows driving with higher
longitudinal and transverse acceleration on dry
carriageways, but with restricted drive stability.
Only in the absolute limit of the range does the
system engage for stability purposes by re‐
ducing the engine power and by brakes ap‐
plied to the wheels. In this driving situation, ad‐
ditional steering corrections may be required.
WARNING
With activated M Dynamic Mode stabilis‐
ing engagements are only carried out to a re‐
duced degree. Danger of accident or damage
to property. Adapt to the traffic conditions. Ob‐
serve the traffic situation and intervene actively
if the situation warrants it. Do not move the
steering wheel with unnecessary force in case
of warnings.◀
To support the driving stability, re-activate
DSC as soon as possible.
Activating MDM Press the button briefly.
In the instrument cluster, the indicator
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Deactivating MDMPress the button.
Indicator lights MDM and DSC OFF no
longer illuminate.
Via M DriveOn the Control Display:1."Settings"2."M Drive 1" or "M Drive 2"3. Select the symbol.4."MDM"
To call up the desired M Drive with the selec‐
ted settings, press the corresponding button
on the steering wheel:
▷▷
A message appears in the instrument cluster.
This message is operated by pressing the but‐
ton again.
Deactivating MDM
Press the corresponding button 1 or button 2
on the steering wheel again.
M Dynamic Mode and the settings selected
under M Drive are deactivated.
Indicator and warning lights Indicator lights illuminate:
M Dynamic Mode is activated.
DSC indicator light also flashes:
M Dynamic Mode is regulating the driv‐
ing and braking forces.
Indicator lights illuminate:
M Dynamic Mode or DSC has failed.
Active M Differential
Principle The active M Differential blocks the rear axis
transmission steplessly, depending on the
drive situation. In so doing, even with the DSC
switched off and in M Dynamic Mode, spinning
of a single rear wheel is avoided and therefore
optimum traction is provided under all driving
conditions.
The driver is responsible for a driving style ap‐
propriate to the situation.
Adaptive M chassis PrincipleThe system reduces unwanted vehicle move‐
ments when a dynamic driving style is used or
on uneven roads.
Depending on the condition of the road and
the driving style, this enhances driving dynam‐
ics and driving comfort.
Programs Possibilities for adjusting the tuning of the
shock absorbers:▷"Comfort": comfort-oriented▷"Sport": balanced▷"Sport Plus": consistently sporty
Selecting program
Via M Drive
1."Settings"2."M Drive 1" or "M Drive 2"3. Select the symbol.4.Select the desired channel.Seite 126ControlsDriving stability control systems126
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Setting is immediately accepted with ac‐
tive M Drive.
To activate the desired M Drive with the selec‐
ted settings, press the corresponding button
on the steering wheel:
▷▷
Using the button
Press button until the desired program is
displayed in the instrument cluster.
Display in the instrument cluster Adaptive M chassis with selected pro‐
gram and activated display of driving
dynamics system statuses, see
page 86.
Drive-off assistant The system provides support when driving off
on upward inclines. It is not necessary to use
the parking brake for this.
1.Hold the vehicle in place by pressing the
foot brake.2.Release the foot brake and drive off with‐
out delay.
The vehicle is held for approximately 2 sec‐
onds after the foot brake has been released.
Depending on the vehicle's load or when tow‐
ing a trailer, the vehicle may roll backwards a
little.
Servotronic
Principle The Servotronic varies the steering force re‐
quired when steering, depending on the
speed. At low speeds the steering force is
heavily supported, in other words a slight force
is needed when steering With increasing
speed the support for the steering force is re‐
duced.
In addition, steering force is adapted according
to drive program, giving a sporty/direct or com‐
fortable steering response.
Programs Adjustment possibilities of the steering force:▷"Comfort": low.▷"Sport": medium.▷"Sport Plus": high.
Selecting program
Via M Drive On the Control Display:
1."Settings"2."M Drive 1" or "M Drive 2"3. Select the symbol.4.Select the desired channel.
Setting is immediately accepted with ac‐
tive M Drive.
To activate the desired M Drive with the selec‐
ted settings, press the corresponding button
on the steering wheel:
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Using the button
Press button until the desired program is
displayed in the instrument cluster.
Display in the instrument cluster Servotronic with selected program with
activated display of the system states
of the driving dynamics, see page 86.
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▷When interrupted: press once.
The indicators turn off. The saved desired
speed is deleted.
Interrupting When the system is activated, press
the button on the steering wheel.
The system interrupts automatically in the
following situations:
▷If the brake is applied.▷If the clutch is depressed for a few seconds
or released with no gear engaged.▷If too high a gear has been engaged for the
speed.▷If MDM is activated or DSC is deactivated.▷If DSC intervenes.
Maintaining, saving, changing speed
Notes WARNING
The desired speed can be inadvertently
set incorrectly or called up. Danger of acci‐
dents. Adapt the desired speed to the driving
conditions. Observe the traffic situation and in‐
tervene actively if the situation warrants it.◀
Maintaining speed, saving
During the interruption, press the rocker
switch.
With the system switched on, the driven speed
is maintained and saved as the desired speed.
This is shown in the speedometer and briefly in
the instrument cluster, see page 130.
If necessary, Dynamic Stability Control DSC
will be switched on.
Changing speed
Press the rocker switch repeatedly upwards or
downwards until the desired speed is set.
With the system active, the speed that is then
shown is set and will be achieved on a clear
road.▷Each time the rocker switch is pressed
lightly up to the resistance point, the de‐
sired speed is increased or decreased by
approximately 1 km/h, 1 mph.▷Each time the rocker switch is pressed be‐
yond the resistance point, the desired
speed is increased or decreased to the
next multiple of 10 km/h on the speedome‐
ter display.
The maximum speed which can be set de‐
pends on the vehicle.▷Pressing the rocker switch until the resist‐
ance point is reached and holding acceler‐
ates or decelerates the vehicle without
pressing the accelerator pedal.
The speed is maintained after letting go of
the rocker switch. Pressing beyond the re‐
sistance point results in greater vehicle ac‐
celeration.
Call up desired speed
Press the button on the steering
wheel.
The saved speed is regained and maintained.
Displays in the instrument cluster
Indicator light Depending on the equipment the indi‐
cator light in the instrument cluster
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shows whether the system is switched on.Desired speed▷Marker illuminates green:
the system is active.▷Marker illuminates orange:
the system is interrupted.▷Marker does not illuminate:
the system is inactive.
Brief status display
Selected desired speed.
If no speed is displayed, the conditions re‐
quired for operation may not be fulfilled at the
moment.
Displays on the Head-Up Display Some information from the system can also be
shown on Head-Up Display.
Park Distance Control PDC
Principle PDC supports you with parking. Slowly ap‐
proaching an object in behind, or with front
PDC, in front of, your vehicle is signalled by
means of:
▷Acoustic signals.▷Visual display.
General
Ultrasonic sensors in each bumper measure
the distance.
The range is approximately 2 m, 6 ft depending on obstacle and environment.
An acoustic warning is only issued under the
following circumstances:
▷At the front sensors and at the two corner
sensors at the rear at approx. 60 cm, 24 in.▷At the central sensors at the rear at ap‐
prox. 1.5 m, 5 ft.▷If there is a collision risk.
Notes
WARNING
The system does not take your personal
responsibility from you when you are estimat‐
ing the traffic situation. Due to limits of the sys‐
tem, it cannot respond independently in a rea‐
sonable way in all traffic conditions. Danger of accidents. Adapt driving style to the driving
conditions. Observe the traffic situation and in‐
tervene actively if the situation warrants it.◀
WARNING
If the vehicle is travelling at high speed
when PDC is activated, there may be a delayed
warning because of physical conditions. Dan‐
ger of injury or damage to property. Avoid ap‐
proaching an object at speed. Avoid moving off at speed while PDC is not yet active.◀
Overview
With front PDC: button in vehicle
Park Distance Control PDC
Ultrasonic sensors PDC sensors on the vehicle.
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