Rear Spoiler - Audi TT Roadster 2011 Owner's Manual

1 5 0 Intelligent t e c hn o log y
Noises from the brake system signal that
wheel spin is being controlled.
Driving off
When drivi ng off, a lways be sure to keep road
conditions in mind as you accelerate. If one
d rive wheel spi ns because it is on a surface
with less grip, gradua lly increase the press ure
on the accelerator pedal until the car starts to
move. The wheel less able to transfer power
spins.
Overheating of brakes
To prevent the disc brake of the braked wheel
from overheating if subjected to excessive
loads, the EDL cuts out temporarily. The vehi-
cle rema ins operationa l and behaves in the
same way as a vehicle without EDL.
As soon as the brake has cooled down, EDL
switches on again automatically .
A
WARNING
- When accelerating on slippery surfaces,
such as on ice or snow, always be careful
when depressing the acce lerator pedal.
Even with the EDL working, the drive
wheels can spin and reduce your ability
to contro l your car. - Risk of crash!
- The increased safety afforded by EDL
does not mean that you can ta ke safety
risks. Always adapt your dr iving sty le t o
the road conditions and traff ic sit uat ion.
@
Tips
If a fa ult occurs in the ABS, the EDL is also
not f unct ion ing. This is indicated by the
ABS warning light ¢
page 17.
Anti-Slip Regulation System (ASR)
The Anti-Slip Regulation System prevents the
driven wheels from spinning when the car is
accelerating.
General notes
The Anti-Slip Regulation System (ASR) is inte-
grated in the electronic stabilization program
(ESP). When th e vehicle starts up and acceler-
ates, the whee ls are prevented from spinning
by adjusting the engine power to match the
amount of grip available from the road sur-
face.
How the system works
ASR pe rforms a utomat ica lly, i.e . without t he
driver's intervention. With the aid of the ABS
sensors ¢
page 153,
ASR monitors t he speed
of the dr iven whee ls. If the whee ls start to
spin, the engine torq ue is reduced automati-
cally until the tires find enough gr ip to lock
onto the road surface . The system is active
across the ent ire speed range .
The ASR works in conjunction with the ABS. If
a malfunction should occur in the ABS, the
ASR will also be out of act io n.
@
Tips
To ensure that the ASR works properly, all
four whee ls must be fitted wit h ident ica l
tires . Any differences in rolling radius of
the tires can cause the system to reduce
engine power wh e n this is not desired. See
a lso
¢
page 205, New tires and repla cing
tires and wheels.
Rear spoiler
The rear spoiler improves vehicle handling
and enhances driver control .
Fig. 1 31 Switch for rear spo iler
The rear spoiler deploys and retracts. Spoiler
operation can be set for automat ic or manual
operation .