Rear Spoiler; Braking - Audi TT 2012 Owner's Manual

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156 Intelligent technology
Rear spoiLer
Applies to vehicles: with retractable rear spoiler
The rear spoiler improves vehicle handling
and enhances driver control.
Fig. 13S $witch for rear spoiler
The rear spoiler deploys and retracts. Spoiler
operation can be set for automatic or manual
operation.
Automatic mode (normal operation)
- Automatic deployment: At a speed of about
7S mph (120 km/h), the rear spoiler deploys
automatically.
- Automatic retraction: When speed drops be-
low about 50 mph (80 km/h), the rear spoil-
er retracts automatically.
Manual mode
- Manual deployment: Tapping briefly on the
switch
c:> fig. 135 deploys the rear spoiler.
- Manual retraction: At speeds up to about
10 mph (20 km/h), retract the rear spoiler
by pressing and holding the switch
c:> fig.
135. At speeds between 10 mph (20
km/h) and 7S mph (120 km/h), retract the
rear spoiler by tapping on the switch
c:>fig.135.
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WARNING
Driving at higher speeds without the rear
spoiler deployed can impair handling char-
acteristics, making the vehicle harder to
control.
- Always make sure that the spoiler is de-
ployed when driving at speeds over
85 mph (140 km/h). If the rear spoiler
warning/indicator light in the instru-
ment cluster co mes on, the rear spoiler
may not have deployed.
- Never drive at speeds higher than
85 mph (140 km/h) if the spoiler is not
deployed. Have the spoiler inspected as
soon as possible by an authorized Audi
dealer or qualified workshop.
- Always obey speed limits and other traf-
fic laws.
.&
WARNING
Improper operation of the rear spoiler can
cause crushing injuries.
- Always make sure that nobody, especially
children, is in the way when the rear
spoiler is deployed or retracted.
CD
Note
Never push the vehicle or apply force to
the rear spoiler - it could be damaged.
@
Tips
Clean the spoiler compartment every 2 to
3 months. The spoiler compartment must
always be free of ice, snow, leaves or other
debris.
Braking
General information
.r
What affects broking effiLiency?
'-
Operating conditions and driving habits
The brakes on today's automobiles are still
subject to wear, depending largely on operat-
ing conditions and driving habits c:> A. On ve-
hicles that are either driven mostly in stop-
and-go city traffic or are driven hard, the
brake pads should be checked by your author-
ized Audi dealer more often than specified in
the Warranty & Maintenance booklet. Failure
to have your brake pads inspected can result
in reduced brake performance.
On steep slopes, you should use the braking
effect of the engine. This way, you prevent un-
necessary wear on the brake system. If you
must use your brakes, do not hold the brakes ~
down continuously. Pump the brakes at inter-
vals.
Noises may occur when braking depending on
the speed, braking force and outside condi-
tions such as temperature and humidity.
Moisture or road salt
Under certain conditions, for exa mple, when
driving through water or very heavy rain, or
even after washing your vehicle, the braking
effect can be reduced due to moisture (or in
freezing conditions ice) on the brake pads. A
few cautious brake applications should dry off
the brake pads or remove any ice coatings.
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered
road and the brakes are not used. Likewise,
you clean off accumulated salt coating from
brake discs and pads with a few cautious ap-
plications of the brake
c:> A.
Corrosion
There may be a tendency for dirt to build up
on the brake pads and corrosion to form on
the discs if the car is not driven regularly or
onlyfor short trips with little use of the
brakes.
If the brakes are not used frequently, or if cor-
rosion has formed on the discs, it is advisable
to clean off the pads and discs by braking
firrnlya few times from a moderately high
speed
c:>A.
Faults in the brake system
Ifyou should notice a sudden increase in
brake pedal travel, then one of the two brake
circuits may have failed
c:> A.
Low brake fluid level
Malfunctions can occur in the brake system if
the brake fluid level is too low. The brake fluid
level is monitored electronically.
Brake booster
The brake booster increases the pressure that
You generate with the brake pedalo It works
only when the engine is running
.c:> A
Intelligent technology
Brake lining wear status
Brake lining wear may be checked by visual in-
spection of the condition ofthe brake pads
through the openings in the wheel. If neces-
sary, the wheel may be removed for this in-
spection c:> page 225, What should I be
aware ofwhen changing a tire?
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WARNING
- You should perform braking maneuvers
for the purpose of cleaning the brake
system only 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 transmission 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 diminish braking
efficiency.
- Do not "ride the brakes" by resting your
foot on the pedal when you do not intend
to brake. This may cause the brakes to
overheat, premature wear and increased
stopping distance.
- Under certain climatic and operating
conditions 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 ca re-
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 fram
brake discs and pads with a few cautious
brake applications.
- Ifyou damage the front spoiler, or ifyou
install a different spoiler, be sure the air
flow to the front brakes is not obstruct-
ed. Otherwise the brake system could
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