110 Driver assist systems › Braking and stabilising systems
✓ The brakes, ESC and other necessary systems re-
Driver assist systems
mained functional after the impact.
✓ The accelerator pedal is not pressed.
Braking and stabilising systems
Overview
Settings
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.
Deactivate / activate ASR
Press the button.
›
Or:
In Infotainment, select the following menu.
›
flashes - ESC is engaged
Or:
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.
When deactivated lights up in the instrument clus-
ter.
goes out on renewed activation.
flashes - ASR is engaged
Deactivating the ASR may be helpful in the following
situations.
Antilock braking system (ABS)
Driving with snow chains.
Driving in deep snow or on very loose ground.
Starting the stuck vehicle.
▶
▶
▶
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.
Troubleshooting
ESC or ASR faulty/deactivated by the system
illuminates
Stop the engine and start again.
If the warning light does not go out after covering
›
Electronic differential lock (EDS)
›
a short distance, seek the help of a specialist ga-
rage.
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.
ABS faulty
illuminates
Electronic differential lock (XDS+)
XDL + helps to stabilize the vehicle during fast cor-
nering by braking the inside wheel of the driven axle.
You may continue driving, exercising appro-
priate caution. Get the help of a specialist compa-
ny.
›
Hill start assist
Hill Hold Control helps when starting off on uphill
gradients by braking the vehicle for about 2 seconds
after the brake pedal is released.
Brake system and anti-lock braking system faulty
illuminates together with
Stop driving! Get the help of a specialist
company.
›
Functional conditions
✓ The gradient is at least 5%.
✓ The driver's door is closed.
Front Assist
Functionality
Multi-Collision Brake (MCB)
MCB helps to decelerate and stabilize the vehicle af-
ter a collision with an obstacle. This reduces the risk
of further collisions.
Front Assist monitors the distance to the vehicle
ahead and points out when the safety distance is ex-
ceeded. In borderline situations, it helps to avoid a
collision by braking interventions.
Functional conditions
✓ There has been a frontal, side and rear collision of
a certain severity.
✓ The impact speed was greater than 10 km/h.
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