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Corrosion
There may be a tendency fo r dirt to bui ld up on
the brake pads and corrosion to fo rm on the discs
if the car is not driven regularly or only for short
trips with little use of the brakes.
If the brakes are not used frequently, or if corro-
sion has formed on the discs, it is advisable to
clean off the pads and discs by braking firmly a
few times from a moderately high speed
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Faults in the brake system
If you should not ice a
sudden
increase in brake
pedal travel, t hen one of t he two brake circuits
may have fai led
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Low brake flu id level
Malfunct ions can occur in the brake system if the
brake fluid level is too low. The brake flu id level is
monitored electronically.
Brake boost er
The brake booster works w ith vacuum pressure
which is created only when the engine is running
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Brake lining wear st atu s
Brake lining wear may be checked by visual in-
spection of the condition of the brake pads
through the openings in the wheel. If necessary,
the wheel may be removed for this inspection
c=>
page 2 55, Replacing wheels.
.8,
WARNING
-
- New brake pads don't have the best stop-
ping power and must be "broken-in" during
the initial 250 mi les (400 km) . You can com-
pensate for this by pressing the brake pedal
more firmly. This also applies later when
new pads are installed.
- You should perform braking maneuvers for
the purpose of clean ing the brake system
only if road conditions perm it. 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
In te llig e nt Te chnolog
y
brakes or hold the pedal down too long or
too often. This could cause the brakes to get
hot and dimin ish braking effic iency.
- Do not "ride the brakes" by rest ing your foot
on the pedal when you do not intend to
brake. This may cause the brakes to over-
heat, premature wear and increased stop-
ping distance .
- Under certain climatic and operat ing condi-
tions such as passing through water , dr iving
in heavy rain or afte r washing the vehicle,
the effect iveness of the brakes can be re-
duced. In winter, ice can accumulate on the
brake pads, lin ings, discs and drums. Care-
fu lly apply brakes for a test . Brakes will dry
and ice coatings will be cleaned off after a
few careful brake applications.
- Driving for an extended period of t ime 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 in-
stall a different spoiler, be sure the air f low
to the front brakes is not obstructed . Other-
wise the brake system could overheat reduc-
ing the effect iveness of the entire brake sys-
tem.
- Failure of one brake circuit will impa ir t he
braking capability resulting in an increased
st opping distance. Avoid driving the vehicle
and have it towed to the nearest Aud i dealer
or qualified workshop .
- Never let the vehi cle roll to a st op with the
engine shut off .
- If the brake booste r is not working, t he
brake pedal must be pressed considerably
harder to make up for the lack of booster as-
sistance.
191
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