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Int e lli ge nt t ec hnol og y
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brakes the inside rear whee l or other additiona l wheels . This brake
intervention
is accompanied by noises.
If the speed of a wheel slows down too much re lative to vehicle
speed whi le braking and it starts to lock, brake pressure to this
whee l is reduced. This adjustment process can be felt as a pu lsing
motion of the brake pedal, accompanied by some noises. In order
f or ABS to be able to operate opt ima lly in this range, you must keep
the brake pedal depressed - never "pump t he brakes" . You should
not expect that braking d istances wil l be shortened under all
circumstances with ABS. Braking distance may even be slight ly
longer, for example on gravel or with fres h snow on a slippery
surface .
If a significant
speed differential between the drive whee ls on one
axle is determined (for example, on a surface that is slippe ry on one
side}, the EDS brakes the spinning wheel and transfers power to the
other drive wheels . This is done up to a speed of about 60 mp h (100
km/h}. Noises from the brake system signa l that whee l spin is being
cont rolled.
If one wheel spins when starting from a complete stop because of a
different grip (for example, one whee l on ice}, keep your foot hard
on the acce lerator until the vehicle starts to move.
If the wheels spin, ASR wi ll automatica lly reduce engine torque and
match power to road surface conditions .
Sw it c hin g on Sp o rt m o d e
In spec ific driving situations (e.g. Launch Control!, you switch ASR
and ESP to Sport mode by pressing the
!ESP]
button once. The ESP
ind icator light in the Driver Information System disp lay comes on
and ASR off appears . "Slip" is ma t ched to t he speed. You should do
t his on ly if your driv i ng skill and traff ic conditions perm it.
Sw it c hing ASR / ESP o ff
In certa in situations (e.g. in deep snow, on a loose surface, or when
rocking the vehicle free}, sw itch ASR and ESP off by pressing the
I
ESP I
button for more than 3 seconds . The ESP indicator light in th e
Driver Information System display comes on and ESP swit ched off
Vehicle operation
appears . You should do this only if your driving skill and traffic
condit ions per m it.
Swit c hin g A S R / ES P on
Activate ASR/ESP by pressing the
I
ESP I
but ton again.
Brak e overh e ating
So that the disc brake on a braked w heel does not overheat, the EDS
switches off automatical ly if there is unusual ly severe loading at this
wheel. The vehicle is sti ll drivab le and has the same properties as a
vehic le without EDS.
As soo n as t he brake has co oled down, EDS switches on again auto -
matical ly.
&
WARNING
•
Even ESP , ABS, EDS and ASR cannot overcome the laws of
physics. You should keep thi s in mind in parti cular on an icy or wet
road. If the syst ems interve ne, you should adjust your speed
immediat ely to road and traffic condition s. Do not be tempted by
the increased safet y provided to t ake risks - you risk having an
accident.
•
Please keep in mind th at th e risk of an accident is increased by
driving t oo fa st, parti cularly in corner s and on icy or wet roads,
and by driving too close to the vehicle ahead. Even ESP, ABS, EDS
and ASR cannot eliminat e th e increased risk of having an accident .
•
Apply th e th rottl e carefully w hen accelerating on a consistentl y
slippery surface, e.g. on ice and snow. The drive wheel s can spin
in spite of the EDS and th ereby affect vehicle stabili ty - you risk
having an accident .
•
Please note th at when ASR or ESP/ASR is deacti vated , th e drive
wheel s can spin on icy and slippery road s and the vehicle can
break aw ay - the re is a risk of skidding !
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