164 Int e lligent t echnolog y
Faults in the brake system
If you should notice a sudden increase in
brake peda l travel, then one of the two brake
circuits may have failed ¢ .&.
Low brake flu id level
Malfunct ions can occur in the brake system if
the brake fluid level is too low. The brake fluid
leve l is moni tored electronica lly.
Brake lining wear status
Brake lining wear may be checked by visual in-
spection of the condition of the brake pads
through the openings in the whee l. If neces-
sa ry, the wheel may be removed for this in-
spection
¢page 236, Wheel change.
A WARNING
- You should perform braking maneuvers
for the purpose of cleaning the brake
system on ly if road conditions permit.
Other road users must not be put at risk -
you may cause an accident!
- Before descending a steep grade, reduce
speed and shift transmiss ion into a lower
gear or lower driving range . Do not ride
the brakes or hold the pedal down too
long or too often. This could cause the
brakes to get hot and dimin ish braking
efficiency.
- Do not "ride the brakes" by resting your
foot on the pedal when you do not intend
to bra ke. This may cause the brakes to
overheat, premature wear and increased
stopping distance .
- Under certain climat ic and operating
condit ions such as passing through wa-
ter, driving in heavy rain or after washing
the vehicle, the effectiveness of the
brakes can be reduced. In winter, ice can
accumulate on the brake pads, linings,
discs and drums . Carefully apply brakes
for a test . Brakes will dry and ice coat-
ings will be cleaned off after a few care-
ful brake applications.
- Driving for an extended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency .
Clean off accumulated salt coating from
brake discs and pads with a few careful
brake applications.
- If you damage the front spoiler, or if you
install a different spoiler, be sure the air
flow to the front brakes is not obstruct-
ed. Otherwise the brake system could
overheat reducing the effectiveness of
the entire brake system.
- Failure of one brake circuit will impa ir
the braking capab ility result ing in an in-
creased stopping distance. Avoid driving
the vehicle and have it towed to the near-
est autho rized Audi dea ler or qualified
workshop.
Brake booster
'
The brake booster adds extra broking power.
The brake booster works with vacuum pres-
sure which is created only when the eng ine is
run ning ¢ .&_.
_&. WARNING
- Never let the vehicle roll to a stop with
the engine shut off.
- If the brake booster is not working, for
examp le when towing your vehicle, or
because the brake booster has somehow
been damaged, the brake pedal must be
pressed conside rably harder to make up
for the lack of booster assistance.
Functioning of Anti-Lock Brake System
(ABS)
ABS prevents the wheels from locking up un-
der broking.
.
The ABS contributes effectively to vehicle con-
trol since it prevents the whee ls from
locking
when the brakes are applied. This means that
the vehicle remains steerable and is less likely
to skid.
With ABS you do not need to pump the
brake. Just hold the brake pedal down.
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