Driving stability
Driving stability control systems
Antilock Brake System ABS
ABS prevents locking of the wheels during braking.
The vehicle remains steerable even during full brake applications, thus increasing active safety.
ABS is operational every time you start the engine.
Brake assistant
When you apply the brakes rapidly, this system automatically produces the maximum braking force boost. This then reduces braking distance to a minimum during full braking. This system utilizes all of the benefits provided by ABS.
Do not reduce the pressure on the brake pedal for the duration of the full braking.
DSC Dynamic Stability Control
The concept
DSC prevents traction loss in the driving wheels when driving away and accelerating.
DSC also recognizes unstable vehicle conditions, such as fishtailing or nose-diving. Subject to physical limits, DSC helps to keep the vehicle on a steady course by reducing engine speed and by applying brakes to the individual wheels.
Indicator/warning lamps

The indicator lamp flashes: DSC controls the drive forces and brake forces.
The indicator lamp lights up: DSC has failed.
Deactivating DSC: DSC OFF
When DSC is deactivated, driving stability is reduced during acceleration and when driving in bends.
To increase vehicle stability, activate DSC again as soon as possible.
Deactivating DSC

Press and hold the button, but not longer than approx. 10 seconds, until the indicator lamp for DSC OFF lights up in the instrument cluster and DSC OFF is displayed.
The DSC system is switched off.
Steering and, depending on the equipment, the chassis are adjusted for sporty driving.
Activating DSC

Press the button.
DSC OFF and the DSC OFF indicator lamp go out.
Indicator/warning lamps
When DSC is deactivated, DSC OFF is displayed in the instrument cluster.

The indicator lamp lights up: DSC is deactivated.
M Dynamic Mode MDM
M Dynamic Mode makes it possible to drive on a dry roadway with high longitudinal and transverse acceleration but with limited driving stability.
Only in the absolute limit area does the system intervene for stabilization by reducing the engine power and by braking interventions on the wheels. In this driving condition, additional steering corrections may be necessary.
To increase vehicle stability, activate DSC again as soon as possible.
Activating MDM

Press the button briefly.
The MDM and DSC OFF indicator lamps on the instrument cluster light up.
Deactivating MDM

Press the button.
The MDM and DSC OFF indicator lamps go out.
Via M Drive
On the Control Display:
- 1.
"Settings"
- 2.
"M Drive 1" or "M Drive 2"
- 3.
Select the symbol.
- 4.
"MDM"
To open M Drive with the selected settings, press the corresponding button on the steering wheel:
A message appears in the instrument cluster. This message is confirmed by pressing the button again.
Deactivating MDM
Press the appropriate button 1 or button 2 on the steering wheel again.
M Dynamic Mode and the settings selected under M Drive are deactivated.
Indicator/warning lamps


Indicator lamps light up:
M Dynamic Mode is activated.

DSC indicator lamp also flashes:
M Dynamic Mode controls the drive forces and brake forces.


Indicator lamps 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 depending 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 assured in all driving situations.
The driver is responsible adapting his or her driving behavior to the situation.
Adaptive M chassis
The concept
This system reduces undesirable vehicle motion when using a dynamic driving style or traveling on uneven road surfaces.
The system enhances driving dynamics and comfort as required for the road surface and driving style.
Programs
Setting options for calibrating the shock absorbers:
"Comfort": comfort-oriented.
"Sport": balanced out.
"Sport Plus": consistently sporty.
Selecting a channel
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.
When M Drive is active, setting is immediately applied.
To activate M Drive with the selected settings, press the corresponding button on the steering wheel:
Using the button
Adaptive M chassis
- 1Setting the adaptive M chassis

Press button repeatedly until the desired program is displayed in the instrument cluster.
Display in the instrument cluster

Adaptive M chassis with selected program for the active display of driving dynamics system statuses.
Drive-off assistant
This system supports driving away on gradients. The parking brake is not required.
- 1.
Hold the vehicle in place with the foot brake.
- 2.
Release the foot brake and drive away without delay.
After the foot brake is released, the vehicle is held in place for approx. 2 seconds.
Depending on the vehicle load or when a trailer is being used, the vehicle may roll back slightly.
Servotronic
The concept
The Servotronic varies the steering force required to turn the wheels in accordance with the vehicle speed. At low speeds, the steering force is strongly supported, i. e. during steering, low force is required. As the speed increases, the assistance of the steering force is reduced.
Programs
Steering force setting options:
"Comfort": low.
"Sport": medium.
"Sport Plus": high.
Selecting a channel
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.
When M Drive is active, setting is immediately applied.
To activate M Drive with the selected settings, press the corresponding button on the steering wheel:
Using the button
Servotronic
- 1Set Servotronic

Press button repeatedly 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.