158 Int e llig e nt t echnolog y
overheat red ucing the eff ect iveness of
t he ent ire brake system.
- Failure of one brake circuit will impair
the braking capability resulting in an in-
creased stop ping distance. Avoid driving
the vehicle and have it towed to the near-
est Audi dealer or qualified workshop.
- Never let the vehicle roll to a stop with
the engine shut off.
- If the brake booster is not work ing, for
example when towing your vehicle, or
because the brake booster has somehow
been damaged, the brake pedal must be
pressed considerab ly harder to ma ke up
for the lack of booster assistan ce.
Electro-mechanical
power assist
The electro -mechanical power assist helps
the driver when steering.
The degree of power assist is electronically
matc hed to vehicle speed.
The power steering system ass ists t he driver
so that he can stee r the ve hicle w ith reduced
phys ical effort.
Powe r stee ring will not wo rk if the eng ine is
off. As a result, the steer ing whee l will be hard
to turn.
& WARNING
If the system develops a prob lem, you
must seek qua lified professional ass is-
tance.
(U;) Note
-
If the re is an electronic malf unct io n, ser-
votronic will st ill function like a conven-
tional power steer ing system, prov iding a
constant steer ing support force t hat is no
longer proportionate to the vehicle speed.
This is most noticeab le when turning the
steer ing whee l at low speeds (for examp le
when parking), - more effo rt will be re-
qu ired than usual.
- Be aware of the different than usual
steering response and adjust your steer-
ing force acco rdingly.
- Have the problem checked and set right
by an autho rized Aud i dea ler as soon as
possible.
- If a steering malfunction occurs, th is is
signa led wit h the
t2-) o r . • ind icator
lights and a warn ing tone, see.
(D Tips
- If the powe r stee ring system sho uld fail,
or if t he engine is not run ning (for exam-
ple, whi le being towed), you will still be
able to steer the vehicle. However, more
effo rt will be required to do so.
- If the power steering system is not func-
tioning properly, contact your authorized
Audi dea ler immediately.
Driving with your
quattro ®
Applies to vehicles : with all -w hee l drive
With all-wheel drive, all four wheels ore driv-
en.
General information
With all -wheel d rive, power is distr ibuted to
all four wheels. This happens automatically
depend ing on your d riving style an d the road
condit ions at the t ime . See a lso¢
page 153.
The all-whee l dr ive concept is des igned for
high eng ine power. Your veh icle is except io n-
ally powerfu l and has excellen t d riving cha rac-
te rist ics both under normal driv ing cond itions
and on snow and ice . Always read and follow
safety precautions¢ & .
Winter tires
When dr iving in t he wint er, your vehicle wit h
all-wheel drive has an advant age, eve n wit h
regular tires. In winte r roa d conditions it may
be advisable to mount winter tires (or all-sea-
son tires) for improved driveability and brak-
ing : these tires must be mo unted on
all four
wheels . See also¢ page 213, Winter tires. .,.
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