Audi R8 Spyder 2015 Owner's Manual page 137

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Anti -lock braking system (ABS)
ABS prevents the wheels from locking up when
braking . The vehicle can st ill be steered even dur-
ing hard braking. App ly steady pressure to the
brake pedal. Do not pump the pedal. A pulsing in
the brake pedal indicates that the system is help-
ing you to brake the vehicle.
Brake assist system
The brake assist system can decrease braking dis-
tance. It increases braking power when the dr iver
presses the brake pedal quick ly in emergency sit-
uations. You must press and hold the brake pedal
until the situation is over.
Anti -slip regulation (ASR)
ASR reduces engine power when the drive whee ls
begin to spin and adapts the force to the road
conditions. This makes it easier to start, acceler-
ate and dr ive up hills.
Electronic diff erential lock (EDL)
The EDL brakes wheels that are spinning and
transfers the drive power to the other drive wheel
or wheels if the vehicle is equipped w ith all-whee l
drive*. This function is available up to about 60
mph (100 km/h) .
I n extreme cases, EDL automatically switches off
to help keep the brake on the braked wheel from
overheating . EDL wi ll switch on again automati-
cally when conditions have returned to normal.
A
WARNING
- ESC, ABS, ASR and EDL cannot overcome the
laws of physics. This is especially important
on slippery or wet roads. If the systems be-
gin act ing to stab ili ze your vehicle, you
should immediately change your speed to
match the road and traffic condit ions. Do
not let the increased safety provided by
these systems tempt you to take risks. Do-
ing so wi ll increase the risk of a loss of vehi-
cle contro l, collis ion and serio us personal in-
juries .
- Always adapt your speed to road, traffic and
weather cond it ions. The risk of losing con-
tro l of the vehicle increases when driving
Int e llig e n t t e c hnolo gy
too fast, especially through curves and on
slippery or wet roads, and when dr iving too
close to vehicles up ahead. ESC, ABS, the
brake assist system, EDL and ASR cannot
prevent coll isions.
- Always accelerate with special care on even,
smooth surfaces such as those that are wet
or covered with ice and snow. The drive
wheels can spin even with these assistance
syst ems that cannot always help to reduce
the risk of loss of vehicle control.
(D
Tips
- ABS and ASR only wo rk correctly when all
four wheels are equipped with ident ical
tire s. Different t ire sizes can lead t o a reduc-
t ion in engine power.
- You may hear noises when the systems de-
scribed are wo rking.
- If
the ind icator light
GJ
or
II
(USA mod-
els);tiJ
(Canada models) appears, there
may be a malfunction~
page 15,
~ page 15.
Switching on/off
ESC turns on automatically when you start the
engine.
SPORT •
Fig. 12 6
Cente r console with
lJ
butto n
ESC sport mode
In certain situations, it might make sense to al-
low some slip. For example:
- Rocking the vehicle to free it when it is st uck
- Driving in deep snow or on loose gro und
- Driving with snow chains
135

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