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56 Driver assist systems ›
Driver assist systems
Braking and stabilising systems
Overview
Stabilisation control (ESC)
ESC helps to stabilize the vehicle in borderline situa-
tions (e.g. when the vehicle starts to skid). ESC
brakes the individual wheels to maintain the direc-
tion of travel.
flashes - ESC is engaged
Traction control (TCS)
ASR helps to stabilize the vehicle when accelerating
or driving on low-grip roads. ASR reduces the drive
power transmitted to the wheels when the wheels
spin.
flashes - ASR is engaged
Antilock braking system (ABS)
ABS helps maintain control of the vehicle during
emergency braking. An ABS intervention is noticea-
ble by pulsating movements of the brake pedal.
Motor Slip Regulation (MSR)
MSR helps to maintain control of the vehicle in the
event of a sudden reduction in speed, e.g. on icy
roads. If the drive wheels lock, MSR increases the
engine speed. This reduces the braking effect of the
engine and the wheels can rotate freely again.
Electronic Differential Lock (EDL)
EDL helps to stabilize the vehicle when driving on
road surfaces with different grip under the individual
wheels. EDL brakes a spinning wheel and transmits
power to a different drive wheel.
Hill Hold Control
Hill Hold Control helps when starting off on uphill
gradients by braking the vehicle for about 2 seconds
after the brake pedal is released.
Operating conditions
✓ The gradient is at least 5%.
✓ The driver's door is closed.
Electromechanical brake booster (eBKV)
eBKV (electronic brake force distribution) facilitates
operation of the brake pedal. At the same time,
charging of the high-voltage battery is made possi-
ble through regenerative braking.
After switching off the ignition, the eBKV (electronic
brake force distribution) function is either restricted
or not available.
Regenerative braking
Regenerative braking produces energy that is stored
in the high-voltage battery. The force of the braking
Braking and stabilising systems
effect depends on the selected driving mode, as well
as the state of charge of the high-voltage battery.
During regenerative braking, pulsating movements
of the brake pedal and fluctuating decelerations of
the vehicle can occur.
Troubleshooting
ESC or ASR faulty/deactivated by the system
illuminates
›
Stop the engine and start again.
›
If the indicator light does not go out after covering
a short distance, seek the help of a specialist ga-
rage.
ABS faulty
illuminates
›
You may continue driving, exercising appro-
priate caution. Seek the help of a specialist garage.
Brake system and anti-lock braking system faulty
illuminates together with
›
Stop driving! Seek the help of a specialist ga-
rage.
Electromechanical brake booster faulty
illuminates
›
Stop driving! Seek the help of a specialist ga-
rage.
Cruise control system
Functionality
The cruise control system maintains the set speed
without the accelerator pedal having to be operated.
This, however, is only possible to the extent permit-
ted by the engine output and braking power of the
vehicle.
WARNING
Risk of the cruise control system starting uninten-
tionally!
Deactivate cruise control after use.
▶
Status display in the instrument cluster display
illuminated - the cruise control system is acti-
vated
illuminated - cruise control is active
When cruise control starts, the set speed is
displayed.
Operating conditions
✓ The driving speed is higher than 20 km/h.
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