Intelligent Technology; Electronic Stabilization Control (Esc) - Audi R8 2017 Owner's Manual

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Intelligent Technology
Electronic stabilization
control (ESC)
Description
The Electr on ic St abilization Contro l (ESC) reinfor -
ces driver safety . It reduces the risk of slipping
and improves driving stability. ESC detects crit i-
cal situations such as the vehicle overstee ring
and understeering or the wheels are spinn ing.
The vehicle is stabilized by applying the brakes or
reducing eng ine torq ue. Once the ESC is activat-
ed, the indicato r light
DJ
blinks in the instru-
ment clust er.
The follow ing systems are integrated in the ESC:
Anti-loc k braking system (ABS)
ABS prevents the whee ls from locking whe n brak-
ing. The vehicle can still be steered even during
hard brak ing. Apply steady pressure to the bra ke
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is act ing to
stabilize t he vehicle .
Brake assist system
The brake assist system can decrease braking dis-
tance. It increases brak ing power when the driver
presses the brake pedal quick ly in emergency sit-
uations . You must press and hold the brake pedal
unti l the dangerous situ ati on is over.
Anti-slip regulation (ASR)
ASR red uces engine power when the drive wheels
begin spinning and adapts the force to the road
conditions. This makes it easier to start, acceler-
ate and dr ive up inclines.
Electronic differential lock (EDL)
EDL applies the brakes to a wheel that starts
spi nning and transfers the drive power to the
other driving wheels. This function is not availa-
ble at higher speeds.
In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over-
heat ing. The vehicle is still work ing correctly. EDL
Intellig e nt Technology
will swit ch on again automatically when condi -
tions have returned to normal.
Steering recommendation*
In veh icles with dynamic steer ing, ESC also hel ps
to st abilize the st eering in cri t ical sit uat ions.
Selective wheel torque control
Selective wheel torque control is used when driv-
ing on curves . Brak ing is t argeted towa rd the
whee ls on the inside of the curve as needed. This
allows mo re precise dr iving in curves. The app li-
cable system may not activ ate w hen driv ing 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 othe r
collisions afte r an accident . If t he air bag cont rol
module det ects a collision above a cert ain vehicl e
speed, the vehicle is bra ked by t he ESC.
The veh icle does not bra ke automatically if:
- the braking force generated by the pressed
brake pedal is greater t han the braking force
t hat wo uld be initiated by t he system, or
- the ESC, the brake system or the vehicle elect ri-
cal system are not functioning.
A
WARNING
- The ESC and it s int egrat ed systems cannot
overcome t he lim its posed by natu ral physi-
cal laws. This is especial ly imp ortant on sli p-
pery or wet roads. If the systems beg in act-
ing to stabilize your vehicle, you should im -
mediately alter your speed to match the
road and traffic condit ions. Do not let the
increased safety provided tempt you into
taking risks. This could increase your risk of
a collision.
- Please note the risk of a coll ision increases
when dr iving fast, especially t hrough curves
and on slippery or wet roads, and when dr iv-
ing too close to objects ahead. The ESC and
its integrated systems cannot always pre-
vent collisions - t here is st ill a risk of acci-
dents!
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