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Electronic
stabilization
control
(ESC)
Description
Electronic
Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and
improves dr iving stability.
ESC
detects crit ical sit-
uations suc
h
as the vehicle overstee ring and un-
de
rst
eer ing or the wheels are sp inning. The vehi-
cle is
st
abilized by app lying the brakes or reduc-
ing e ngine torque. Once t he
ESC
is ac
t ivat
ed, the
indicator light
DJ
blinks in the instrument
clus
-
ter
.
The fol low ing systems are integrated
in the ESC:
Anti-lock braking system (ABS)
ABS preve
nts
the whee ls from lock ing whe
n
brak-
ing. The vehicle can
st
ill be steered even during
ha rd brak ing. Apply steady press
ur
e to the brake
pedal. Do not pump the pedal. A puls ing in t he
bra
ke pedal indica
t
es th at the system is act ing to
st
abili ze
t
he vehicle.
Brake assist system
The brake assist sys
t
em can decrease braking dis-
tance
.
It
increases brak ing power when the d
river
presses the brake pedal q uickly in eme rgency sit-
uations.
You
m ust press and hold the brake pedal
u nti
l
the dangero us
situ ati
o
n
is over. In ve hicles
with adaptive cruise contro l*, the bra ke assist
system is more sensitive if the d istance detected
to the veh icle ahead is too small.
Anti-slip regulation (ASR)
ASR red uces eng ine power when the
dr
ive wheels
begin spinning an
d
adapts the force to
t
he road
conditions. This makes it easie
r
to sta
rt
, acceler
-
ate and drive up inclines
.
Intellig
e
nt Technology
Electronic differential lock (EDL)
The
EDL
brakes wheels t hat are spi nning and
transfe rs the drive power to the
ot
her dr ive
whee
l
or wheels if the vehicle is equ ipped with all
whee
l
drive
*).
This function is not available at
higher speeds.
In extreme cases,
EDL
a utomat ica lly
swit
ches off
to keep the brake
on
the braked whee
l
from over-
heating. The vehicle is still working correct ly.
EDL
will switc
h
on again automatically
when condi-
tions have returned to normal.
Steering recommendation
The ESC he lps
t
o
st
abilize
t
he vehicle by changing
the steering torque.
Selective wheel torque control
Se lective w heel torque con
tr
ol is used w hen d
riv-
ing on curves. The front whee
l
on the ins ide of
the curve or both wheels on t he ins ide of the
curve are braked se lective ly as needed
.
This al
-
lows more precise driving in
cur
ves
.
Automatic post-collision braking system
The "Automat ic pos
t
-collis ion
br
aking system"
ca
n help to reduce the
risk
of sliding and of othe
r
collisions af
t
er an a cciden
t. If
t he ai
rb
ag cont rol
module detects a collision above a certai
n
vehicle
speed, the vehicle is brake
d
by the ESC.
The veh icle does not br
ak
e au
t
omatic ally if:
-
the dr iver presses the acce lera
t
or pedal, or
-
the braking fo rce generated
by the pressed
brake pedal is greater than the braking force
that would be initiated by the system, or
-
the
ESC,
the brake system o
r
the veh icle electri-
cal system are not functioning.
A
WARNING
-
The ESC and its integ rated systems ca nnot
over come the limits posed by natu ral physi-
cal laws. This is espe
ciall
y impor
tant
on slip-
pery o
r
we
t
roads
.
If the systems beg in act-
ing to stabilize your veh icle, you should
im-
mediately a lter your speed to match the
road and tra ffic condit ions. Do not let the
increased safety provided tempt you into
159
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