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Intelligent Technology
Electronic Stabilization
Control (ESC)
Description
The ESC increases driving safety. It reduces the
risk of slipping and improves driving stability.
ESC detects critical situations such as when the
vehicle is oversteering and unde rstee ring or the
wheels are spinning. The vehicle is stabilized by
applying the brakes or reducing engine torque .
When the ESC engages, the
G1 indicator light
blinks in the instrument cluster.
The following systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the whee ls from locking when brak-
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assist system
The brake assist system can decrease braking dis-
tance. It increases braking power when the driver
presses the brake pedal quickly in emergency sit-
uations . You must press and hold the brake pedal
until the dangerous situat ion is over . In veh icles
with adaptive cruise contro l*, the brake assist
system is more sensitive if the distance detected
to the veh icle dr iving ahead is too small. On
vehicles w it h activated and functioning night vi-
sion assist*, the brake assist system can respond
more sensitively if there is a warning .
Anti-Slip Regulation (ASR)
ASR reduces eng ine power when the drive wheels
begin sp inning and adapts the force to the ro ad
conditions. This makes it easier to start, acceler-
ate and drive up hills.
Electronic differential lock (EDL)
EDL applies the brakes to a wheel that starts
sp inn ing and transfers the drive power to the
other driving wheels. This functio n is not availa-
ble at higher speeds .
Intelligent Technology
In extreme cases, EDL automatica lly switches off
to keep the brake on the braked whee l from over -
heating. The veh icle is still working correct ly. EDL
will switch on again automatically when condi-
tions have returned to normal.
Steering recommendation
The ESC he lp s to stabilize the vehicle by changing
the steering torque .
In veh icles with dynamic steer ing*, ESC also
helps to stab ilize the steer ing in crit ica l situa-
tions.
Selective wheel torque control
Selective wheel torque control is used when driv-
ing on curves.
The front wheel on the inside of the curve or both
wheels on the inside of the curve are braked se-
lectively as needed. This allows more precise driv-
ing in curves . The applicable system may not acti-
vate when dr iving in wet or snowy cond itions .
Automatic post-collision braking system
The "automat ic post-collis ion braking system"
can help to reduce the risk of sliding and of addi-
t iona l collisions after an acc ident. If the airbag
control module detects a co llision above a certa in
vehicle speed, the veh icle is braked by the ESC.
The veh icle does not brake automatically if:
- the dr iver presses the acce lerator pedal, or
- the braking force generated by the pressed
brake pedal is greater than the braking force
that would be initi ated by the system, or
- the ESC, the brake system or the vehicle electri -
cal system are not functioning.
A WARNING
,- -
- The ESC and its integrated systems cannot
overcome the lim its imposed by natural
physical laws. This is especially impo rt ant
on slippery or wet roads. If the systems be-
g in acting to stabilize your vehicle, you
should imm ediately alter you r speed to
match the roa d and traff ic conditions. Do
not let the increased safety provided tempt
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