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Operation
the
button and the
S
ET
TINGS
and
E
SC
System
function buttons.
WARNING
You should switch on the ESC Sport mode on-
ly if the tr
affic conditions and your driving
ability allow you to do so safely: risk of skid-
ding!
●
With ESC in Sport mode, the stabilising
function will be limited to allow for a sportier
drive. The driving wheels could spin and the
vehicle could skid.
Note
If the ASR is disconnected or the ESC’s Sport
mode is sel
ected, cruise control* will be
switched off.
Electronic differential lock (EDS)*
The EDL operates along with the ABS in vehi-
c
l
e
s equipped with Electronic Stability Con-
trol (ESC)*.
EDL helps the vehicle to start moving, accel-
erate and climb a gradient in slippery condi-
tions where this may otherwise be difficult or
even impossible.
It uses the ABS sensors to monitor the speed
of the driven wheels.
At speeds of up to approximately 80 km/h
(50 mph), it is able to balance out differences
in the speed of the driven wheels of approxi-
mately 100 rpm/min caused by a partially
slippery road surface. It does this by braking
the wheel which has lost traction and distrib-
uting more driving force to the other driven
wheel via the differential.
To prevent the disc brake of the braking
wheel from overheating, the EDL cuts out au-
tomatically if subjected to excessive loads.
The vehicle will continue to function normally
without EDL. For this reason, the driver is not
informed that the EDL has been switched off.
The EDL will switch on again automatically
when the brake has cooled down.
Control lamp
A malfunction in the EDL is indicated by the
ESC control lamp . Take the vehicle to a
specialised workshop as soon as possible.
WARNING
●
When accel
erating on a slippery surface,
for example on ice and snow, press the accel-
erator carefully. Despite EDL, the driven
wheels may start to spin. This could impair
the vehicle's stability.
●
Always adapt your driving style to suit road
conditions and the traffic situation. Do not let
the extra safety afforded by EDL tempt you in-
to taking any risks when driving, this can
cause accidents.
CAUTION
Modifications to the vehicle (e.g. to the en-
gine, the brake sy
stem, running gear or any
components affecting the wheels and tyres)
could affect the efficiency of the EDL
››› page 247.
Hydraulic Brake Assist (HBA)*
The function (Hydraulic Brake Assist HBA) is
only inc
luded in vehicles with ESC.
In an emergency, most drivers brake in time,
but not with maximum force. This results in
unnecessarily long braking distances.
This is when the brake assist system comes
into action. When pressing the brake pedal
rapidly, the assistant interprets it as an emer-
gency. It very quickly builds up the full brake
pressure so that the ABS can be activated
more quickly and efficiently, thus reducing
braking distance.
Do not reduce the pressure on the brake ped-
al, since the brake assist system switches off
automatically as soon as you release the
brake.
Automatic hazard warning lights activation
The brake lights flash automatically to indi-
cate that the vehicle is braking suddenly or in
an emergency situation. If the emergency
braking continues until the vehicle comes to
186
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