brake AUDI TT ROADSTER 2015 Owner's Manual

84 Transmi ssion
because if the veh icle starts to roll
backward, you could cause an accident. If
the clutch should start to slip, you will
feel the vehicle "jerk" and the selector lever disp lay will start b linki ng .
- Before driv ing down a steep slope, re­
duce you r speed and shift into a lower
gear with "tiptronic" .
- Do not ride the brakes or app ly the brake
peda l too often or too lo ng . Constant
braking causes the b rakes to over heat
and substan tially red uces bra king pe r­
fo rm ance, in cr ease s bra king dis tance or
c a uses comp lete failure o f th e b rake sys­
tem.
Hill Descent Assist
Hill Descent Assist helps the driver when driv­
ing down inclines .
Hill Descent Ass ist is activated by pressing the
b rake w hile desce nding w hen the selecto r lev ­
e r i s in D/S. The S tronic t ra nsm ission au to­
mat ically shifts dow n to a gea r su itab le for
the incline. Hill Descent Assist at tempts to
maintain th e current vehicle spe ed whe n the
brak ing occu rs, as far as phys ica l and techni­
cal lim its a llow. It may be necessary to adjust
the speed using the brakes.
Hill Descent Assist switches off when the in­
cline levels out or when the gas pedal is press­
ed.
On vehi cles with cruise contro l* ¢
page 77 ,
Hill Descent Assist is a lso activated when the
speed is set.
_& WARNING
H ill Descent Assist ca nnot overcome p hys i­
cal limitations, so it may not be possib le to
ma intain a constant vehicle speed under
all circ ums tances . Always be ready to ap­
ply t he bra kes .
tiptronic operation
Tiptronic allows the driver to shift gears man­
ually .
Fig . 92 Ce nte r co nso le: Ma nua l shiftin g (t iptro nic)
Fig . 9 3 D isp lay: Ma nua l shi fting (t ip tro nic )
Switching to manual
.... M .... 0
~
... Move the selector lever to the r ight out of
t he D position . The d isplay changes once the
t ra nsmiss io n has sw itched to ma nual mode .
For examp le,
M4 ind ica tes that 4t h gea r is
engaged.
Upshifting
.,. Tap the selector lever fo rward ( in the tip­
t ronic setting) ¢
fig. 92 G) .
Downshifting
... Tap the selector lever backward (in t he tip-
tronic setting)
Q .
Switch ing to man ual can be carried out with
the vehicle stationary as we ll a s mov ing .
When accelerating, the transmission sh ifts in ­
to th e next gear in gears 1, 2, 3, 4 and S
shortly before the maximum permissible en -
gine speed is reached. ..,.

If you have selected a lower gear than the cur­
rent one, the transmission will only shift down
when the engine cannot be overspeeded .
If kick-down is actuated, the transmission
shifts into a lower gear independent ly of
speed and engine rpm .
Steering wheel with Tiptronic controls
The selector paddles allow the driver to keep
both hands on the steering wheel when shift­
ing gears.
Fig. 94 Sport stee ring wheel with selecto r paddles
Shifting up
.,. Pull the right paddle, marked 0 ¢ fig. 94
briefly towards you .
Shifting down
.. Pull the left paddle, marked 0 ¢ fig. 94
briefly towards you.
The selector paddles on the steering wheel
are activated when the selector lever on the
center console is in D, Sor in the manual posi­
tion (Tiptronic mode).
You can also shift gears in the Tiptronic mode
using the selector lever on the center console.
@ Tips
With the gear selector lever in either Dor
S the transmission will switch back to the
automatic mode if you do not use the pad­
dles within approx . 30 seconds.
Transmission 85
Kick -down feature
The kick-down feature allows maximum ac­
celeration .
If you depress the accelerator pedal fully be­
yond the full-throttle position, the transmis­
sion automatically downshifts one gear, de ­
pending on vehicle speed and engine rpm. The
upshift into the next higher gear takes place
as soon as the maximum specified engine
speed is reached.
_&. WARNING
Please note that the drive wheels can spin
if the kick-down is used on a smooth slip­
pery road -risk of sk idding!
Launch Control Program
The Launch Control Program permits maxi­
mum acceleration.
In order to use Launch Control, the ASR (Anti­
Slip Regulation) must be disabled. When ASR
is disabled, the ESC warning/indicator light
I) in the instrument cluster illuminates. So
that Launch Control can be used, the engine must be at operating temperature and the
steering wheel must not be turned .
.. With the engine running, briefly press the
ESC button . The message "Stabilization pro­
gram off" or "Sport control Warning! Re­
stricted stability" in the driver information
system display.
.. Shift the gear lever to "S" or the tiptron ic
position .
.. Step on the brake pedal with your left foot
and keep the brake pedal fully depressed for
at least one second .
.. With your right foot, step on the accelerator
to the wide-open throttle position or Kick­
down. The engine speed settles at about
3,200 rpm.
.. Take your left foot off the brake.

86 Transmis sion
& WARNING ,-
- Always adapt your driving to the traffic
flow.
- Only use Launch Control when road and
traffic conditions allow it and other driv­
ers will not be endangered or annoyed by
your driving and the acceleration of the
vehicle .
- Make sure that ESC remains enabled.
With the ESC disabled, the vehicle could
brake away, particularly on a slick and
slippery road - risk of skidding!
- Once acce lerat ion is finished, switch ASR
on again by briefly pushing the ESC but­
ton.
(j) Tips
- The transmission temperature may in­
crease significantly after using the Launch Control Program. If that hap­
pens, the program may not be available
for a few minutes.
It will be available
again after a cool-down period.
- When accelerating using the Launch
Control program, all vehicle parts are
subject to heavy loads . This can result in
increased wear.
Back-up program
In the event of a system malfunction, there is
a back-up program.
In the event of system malfunction, the auto­
matic transmission switches to the fail-safe
mode. Al l of the selector lever position dis­
plays for the automatic transmission are high­
lighted with a light background in the instru­
ment cluster display . In some cases you can­
not use reverse gear any more.
If the transmission switches to fail-safe mode, you should take the vehicle to an au­
thorized Audi dealership as soon as possible
to have the condition corrected .
Clutch is overheating
• Clutch is overheating! Please stop vehi­
cle!
If the symbols are illum inated, the clutch is
overheating and could be damaged if you con­
t inu e to drive. Stop the vehicle and allow the
transmission to cool with the se lector lever in
the P position while the engine runs at idle. If
the warning does not turn off, do not continue driving. See your authorized Audi dealer or
qualified repair facility for assistance. Other­
wise serious transmission damage could re­
sult . Once the indicator light has turned off,
drive to your authorized Audi dealer or quali ­
fied repa ir facility immed iately to have the
malfunction corrected .
Selector lever emergency release
If the vehicle's power supply fails, the selec ­
tor lever can be released in an emergency.
--
-
-
-
-
---Fig. 95 Selecto r lev er: Remov ing the selector le ver
boot
Fig. 96 Selecto r lever : Using the emerge ncy release to
move out of the Park positio n
The emergency release mechanism is located
i n the right front area under the selector lever
shift gate. Using the emergency release can
be complicated. We recommend contacting ..,_

88 Homelin k
Homelink
Universal remote
control
General information
The Homelink universal remote control can
be programmed with hand-held transmitters
from existing equipment .
You must first program the Homelink trans­
mitter before you can use the system
~ page 88 , Programming the Homelink
transmitter.
In order to program the Homelink transmit­
ter for devices utilizing rolling code, a second
person on a ladder who can safely reach the
garage door opener motor is recommended.
It is also necessary to locate the "learn" but­
ton on your garag e door open er motor . Refer
to the ope rating instructions for the opener ,
as the location and color of this bu tton may
vary by manufacturer .
You can still use the original remote control
for the device at any time.
A WARNING
-
- Never use the Homelink transmitter
with any garage door opener that does
have not the safety stop and reverse fea­
ture as required by federal safety stand­
ards. This includes any garage door open­
er model manufactured before April 1,
1982.
- A garage door opener which cannot de­
tect an object, signaling the door to stop
and reverse does not meet current feder­
al safety standards. Using a garage door
opener without these features increases
risk of serious injury or death.
- For safety reasons never release the
parking brake or start the engine while
anyone is standing in front of the vehicle.
- A garage door or an estate gate may
sometimes be set in motion when the
Homelink remote control is being pro­
grammed. If the device is repeatedly ac- tivated, this can overstrain motor and
damage its electrical components - an
overheated motor
is a fire hazard!
- To avoid possible injuries or property
damage, please always make absolutely
certain that no persons or objects are lo­
cated in the range of motion of any
equipment being operated.
(!) Tips
- If you would like more information on
Homelink, where to purchase the Home­
Link compatible products, or would like
to purchase the Homelink Home Light­
ing Package, please call toll-free :
1-800-355-3515.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions ~
page 228.
Programming the Homelink transmitter
Fig. 97 Overhead co nsole: Homelink keypad
Fig. 98 Front bumper , driver side: lo catio n of tra n smi t­
te r unit
The transmitter is programmed in two phases.
For rolling code transmitters, a third phase is
also necessary.
ll-

Phase 1:
p rogramming th e overh ead keypad
1. Make sure yo ur vehicle is wit hin ope rating
range of the remote contro lled garage
door opener .
2. Set the parking brake
q A in General in­
formation on page 88 .
3. Tur n the ignition on . Do not sta rt the en­
g ine!
4. P ress and hold the two o utside Home Link
b uttons
(D and @for app rox ima tely 20
seconds until indicator light @
q fig . 97
begins to flash. Then release both but­
tons . Do not hold the buttons for longer
than 30 seconds.
.,. This procedure only needs to be performed
once . It erases the factory-set defau lt codes
and does not have to be repeated to pro ­
gram add it ional remote controls .
S. Pr ess and hold t he Home link button (D ,
® or@ unt il the indicato r ligh t@
starts flashing
slowly . Release the bu tton.
.,. The system will remain in programming
mode for 5 minutes . Co to the front of the
vehicle and proceed with phase 2 .
Phase 2:
programming the bumper mounted trans
mitter
6. Hold the original remote control at a dis­
tance between 0 -6 in . (0 -15 cm) from the
bumper below the appropriate head light
for your vehicle
q fig . 98 (use th e sho rtest
d istance possible) .
7. A im t he remote con trol jus t be low the
driver side head ligh t.
8 . Pr ess and hold the activa tion button on
the remote cont ro l.
.,. May be different in Canada.
If so, press and
re -press (cycle) the act ivat ion button on your
remote control every two seconds.
9 . The emergency flashers will flash
three
time s
(after about 15 -60 seconds) when
the prog ramm ing is successful. Release
the butto n on the re m ote control.
.,. To program more devi ces, repeat steps 4 to
9.
Homelink 89
10. Press and ho ld the t rained Home link b ut­
ton and observe t he indicator light @
qfig. 97.
.,. If the ind icator light is solid/contin uous,
programm ing is comp lete and your device
should activate w hen you press and release
t he t ra ined Homel ink button .
.,. If the ind icator light blinks rapidly fo r 2 sec­
onds and is t hen a so lid/continuous light,
p roceed w it h phase 3 to progr am a roll ing
code device.
Phase 3: rolling code programming
.,. A second pe rson o n a ladde r who can safely
reach th e garage door opene r motor is rec­
ommended .
11. Loc ate t he "lea rn" bu tton on t he g arage
doo r opener motor ( re fer to the operating
inst ruct ions for the opener, as t he loca­
t ion of t his button may va ry by man ufac ­
turer) .
12 . Press and release the learn b utton on the
garage door opener motor .
.,. Note : once the b utton is p ressed, there are
30 seconds in w hich to initiate the next
step.
13 . On t he Home link keypad ins ide t he ve hi­
cl e, firmly press and hold t he Home link
bu tton prev iously progr ammed in phases
1 and 2 fo r two seconds and release . R e­
peat this seque nce
twice.
.,. Some vehicles may require the press/ho ld/
re lease sequence up to three t imes to com­
plete t he trai ning process .
.,. Homelink should now activate your rolling
code equipped device .
If the S minute time limit is exceeded , the
emergency flashers will flash one time to in ­
dicate that the p rocess has been te rm ina ted .
In this case, repeat steps 4 t hrough 9.
If the emergency flashers do not flash
three
times (afte r about lS -60 seconds) , program­
ming was not successful. In this case, repeat
steps 4 through 9 .
Remote contro l units for garage door openers
in Canada are set to stop transmitting radio
fr eque ncy signa ls afte r two seconds . This t ime
Ill-

96 Driving Safel y
Pedal area
Pedals
The pedals must al ways be free to move and
must n ever be interfered with by a floor mat
or any other object.
Make sure that all pedals move freely without
interference and that nothing prevents them
from returning to the ir original positions .
Only use floor mats that leave the peda l area
free and can be secured with floor mat fasten­
ers .
If a brake circuit fails, increased brake peda l
travel is required to bring the vehicle to a full
stop.
A WARNING
Pedals that cannot move freely ca n cause
loss of vehicle control and increase the r isk
of serious injury.
- Never place any objects in the driver 's
footwell. An object could get into the
peda l area and interfere w it h pedal func­
ti on. In case of s udden braki ng or an ac­
cident, you would not be ab le to bra ke or
accelera te!
- Alw ays make su re th at noth ing c an f all
or move into the dr iver's footwe ll.
Floor mats on the driver side
Always use floor mats that can be securely
at tached to the floor mat fasteners and do
no t interfere with the free movement of the
pedals.
.,. Make su re tha t the floor mats are properly
sec ured and cannot move and inte rfere w ith
the pedals ~.&_ .
Use only floor mats that leave t he pedal a rea
unobstr ucted and that a re firmly secured so
that they cannot s lip out of posi tion. Yo u can
obtain suitable floor mats from your author ­
ized A udi Dealer.
Fl oor mat f asteners a re i nstalled in you r A udi . Floor mats used in yo
ur vehicle must be at ­
tached to these fasteners . Properly securing
t h e floor mats will prevent them from sliding
into positions that could interfere with the
pedals or impair safe operat ion of your vehicle
i n other ways.
A WARNING ,-
Pedals tha t ca nnot move free ly can result
i n a loss of vehicle control and inc rease the
r isk of ser ious perso na l inju ry.
- Always make sure that floor mats are
p roperly secu red.
- Never p lace or install floor mats o r other
f loor cove rings in th e vehicle that cannot
be pro pe rly secured in p la ce to prevent
them from slipping and interfer ing wi th
the peda ls o r th e ab ility to cont ro l t he
vehi cle.
- Never p lace or ins tall floor mats or othe r
floor coverings on top o f al ready instal ­
led floo r mats . Additiona l floor mats and
other coverings will red uce the size of
the peda l area and interfere w ith the
pedals.
- Always properly reinsta ll and secure floor
mats that have been taken out for clean­
ing.
- Always make sure that objects cannot
fall into the dr iver footwell while the ve­
h icle is moving . Objects can become
trapped under the brake pedal and acce l­
erator pedal causing a loss of vehicle
control.
Stowing luggage
Loading the luggage compartment
All luggage and o ther objects mus t be prop­
erly stowed and secured in the luggage com ­
partment.
L oose items in the lugg age compa rtment c an
shift s udden ly, changing vehicle handling
characteristics. Loose items can a lso increase
the risk of serious persona l injury in a sudden
vehicle maneuver or in a co llision.

Intelligent technology Notice about data
recorded by vehicle
control modules
Your vehicle is not equipped with an Event Da­
ta Recorder (EDR), installed by some manu­
facturers for the express purpose of capturing
data for retrieval after an accident or crash
event. EDR's are sometimes called "crash re­
corders".
Some state laws restrict the retr ieval or down­
loading of data stored by EDR's that were in­
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
Although your vehicle is not equipped with an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for examp le, engine function, emis­
sion control, as well as for the airbags and
safety belts.
These electronic control modules also record
vehicle-related data during norma l vehicle op­
eration for diagnostic and repair purposes.
The recording capacity of the electronic con­
trol modules is limited to data (no sound is re­
corded) and only a small amount of data is ac­
tually recorded over a very limited period of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condition. Stored data can only be read and downloaded with special equip­
ment.
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidding and loss of veh icle control. It works
only when the engine is running. ESC detects
Intelligent technology 141
certain difficult driving situations, including
when the vehicle is beginning to spin (yaw)
out of control and helps you to get the veh icle
back under control by se lectively braking the
wheels, and/or reducing engine power and
providing steering ass istance to help hold the
vehicle on the driver's intended course. The in­
dicator light
B.J in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations .
It is important to remem­
ber that ESC cannot overcome the laws of
physics.
It will not always be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
help you master situations where there is a
sudden change in the coefficient of friction of
the road surface. When there is a section of dry road that is suddenly covered with water,
slush or snow, ESC cannot perform the same
way it would on the dry surface. If the vehicle
hydroplanes (rides on a cushion of water in­
stead of the road surface), ESC will not be
able to help you steer the vehicle because con­
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered .
During fast cornering, particularly on winding
roads, ESC cannot always deal as effectively
with difficu lt driving situations as at lower
speeds.
Always adjust your speed and driving style to
road, traffic §&and weather conditions. ESC
cannot override the vehicle's physical limits,
increase the available traction, or keep a vehi­
cle on the road if road departure is a result of
driver inattention. Instead, ESC improves the
poss ibility of keeping the vehicle under con­
trol and on the road dur ing extreme maneu­
vers by usin g the driver's steering inputs to
help keep the vehicle going in the intended di­
rection. If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
ESC includes and/or works together with the
anti- lock brake system (ABS), brake assist sys -
tem and anti-slip regu lation (ASR). ESC is
Ill>
•
•

142 Intelligent technology
switched on all the time. In certain situations
when you need less traction, you can switch
off ESC by pressing the button
l!l . Be sure to
switch ESC on again when you no longer need
less traction.
Anti -toc k brak ing system (ABS)
ABS prevents the wheels from lock ing up
when braking . The vehicle can still be steered
even during hard brak ing . Apply steady pres­
sure to the brake pedal. Do not pump the ped­
al. A puls ing in the brake pedal ind icates that
the system is he lp ing you to brake the vehicle .
Brake assist sy stem
The brake assist system can decrease braking
d istance. It increases braking power when the
driver presse s the brake pedal quickly in emer­
gency si tuations. You must press and hold the
brake peda l until the situation is over .
Anti-slip regulation (ASR)
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to the road conditions . This makes it easier to
start, accelerate and drive up hills.
E lectronic differential lock (EDL )
The ED L brakes wheels that are spinning and
transfers the drive power to the other drive
wheel or whee ls if the vehicle is equipped with
all-wheel drive*. This function is available up
to about 60 mph (100 km/h) .
In extreme cases, EDL a utomatica lly switches
off to help keep the brake on the braked whee l
from overheating. EDL will switch on aga in au­
tomatically when conditions have returned to normal.
A WARNING
- ESC, ABS, ASR and ED L can not ove rcome
t h e laws of phy sics. This is espe cial ly im ­
por tant on slip pery or wet ro ads .
If th e
sys tems begin a ct in g to stab ilize your ve­
hicle, you shou ld imme diately change
yo ur speed to match the road and traffic
condit ions. Do not let the inc reased safe­
ty provided by these systems tempt you to take risks. Do
ing so w ill increase the
risk of a loss of veh icle control, co llision
and serious pe rsonal injuries .
- Always adapt your speed to road, traffic
and weather conditions. The risk of los­
ing control of t he vehicle increases when
driving too fast, espec ially through
curves and on slippe ry or wet roads, and
wh en dr iv ing too clos e to vehicl es u p
ahead. ESC, A BS, the brake ass ist sys­
tem, ED L and ASR cannot p reven t coll i­
si ons .
- Always acceler ate wi th sp ecial c are on
even, smoo th s urfaces such as those th at
are wet or covered with ice and snow .
The drive wheels can spin even with
these assistance systems that cannot al­ ways he lp to reduce the risk of loss of ve­
h icle co ntrol.
(D Tips
- ABS an d ASR only wo rk correct ly when
all four whee ls are equipped with identi­
cal tires . D ifferent tire si zes can lead to a
reduction in engine powe r.
- Yo u may hear noises when the systems
descr ibed are working.
- If the ind icator light Ii) or II (USA
mode ls)/ Ei] (Canada models) appears,
there may be a malfunction
¢ page 18,
¢ page 17.
Switching on and off
£SC turns on automatically when you start
the engine.
Fig . 12 1 Ce nte r conso le: ESC OFF b utto n

144 Intelligent technology
-Never push the ve hicle or app ly force to
the rea r spo ile r - i t co uld be damaged .
- To prevent damage to the rear spoiler do
not lean o r place a nyth ing o n it.
- Only ope rate the rear spoi ler manually
when the rear lid is closed and t he rear
spo ile r moving parts are not blocked.
Otherwise, damage could occur.
C lean the spoi le r compartment every 2 to
3 months . The spoiler compartment must
always be free of ice, snow, leaves or other
debris.
Braking
General information
What affects braking efficiency?
Operating conditions and d riving habit s
The brakes on today's automob iles are st ill
subject to wea r, depend ing largely on operat­
i ng cond itions and dr iv ing habits
c:> & . On
ve hicles that a re e ithe r dr iven mostly in stop­
and-go city traffic o r a re driven ha rd , the
b rake pads should be checked by yo ur auth or­
iz ed A udi dealer more often th an specifie d in
the
Warranty & Maintenance booklet . Fail ure
to have your b ra ke pads inspected can res ult
in red uced b rake performance.
O n steep slopes, yo u sh ou ld use t he b ra ki ng
effect of the engine . This way, yo u preven t un­
necessa ry wear on the brake system . If you
must use yo ur brakes, do not ho ld the bra kes
down continuously . P u mp the brakes at inter­
va ls.
N oises may occur w hen braking depending on
the speed, bra king force and outside condi ­
tions s uch as temperature and h umidity.
Moisture or road salt
Unde r cert a in co ndi tions, for examp le, w hen
d riving through wate r or ve ry heavy rain , or
even after washing yo ur vehicle , the braking effect can be
reduced due to mois ture (or in
freez ing cond itions ice) on the brake pads. A
f ew cautio us brake applications s hou ld dry off
the brake pads or remove any ice coatings.
T he effec tiveness of the brakes can be red uce d
whe n the vehicle is d riven on a sa lt -covered
road and the b rakes are not used . Likewise,
yo u clean off acc umulated salt coat ing from
brake d iscs and pads with a few cautio us ap­
plicat ions o f th e b rake
c:> & .
Corrosion
The re may be a tendency for dirt to build up
on the brake pads and corros ion to form on
t h e d iscs if the car is not driven regu larly or
o n ly for short trips w ith litt le use of the
brakes .
If the brakes are not used frequently, or if cor­
ros ion has formed on the discs, it is adv isable
to clean off t he pads a nd d iscs by braking
firmly a few times from a moderately h igh
s p eed
c:> & .
Faults in the brake system
If you shou ld notice a sudden increase i n
brake pedal trave l, then one of the two brake
c ircuits may have fa iled
c:> & .
Low brake fluid level
Malfunctions ca n occ ur in the bra ke system if
t h e b rake fluid level is too low. The brake flu id
level is monitored electronica lly.
Brake booster
T he br ake boos ter inc reases the pressure tha t
yo u genera te with the b ra ke peda l. It works
o nl y when t he engine is runnin g
.c:> .&
Brake lining wear status
Br ake lining wear may be che cked by visual in­
spe ct io n of th e condition o f the br ake pa ds
t h ro ugh the open ing s in the wheel. If neces ­
sa ry, the w heel may be removed fo r thi s i n­
spect ion
c:> page 208, What should I be
aware of when changing a tire?.

A WARNING
-You should perform brak ing maneuvers
for the purpose of cleaning the brake
system only if road cond it ions permit .
Other road users must not be put at r isk -
yo u may cause an acc ident!
- Before descending a steep grade, reduce
speed and shift transm iss ion into a lowe r
gear or lowe r driving range. Do not ride
the brakes or hold the pedal down too
long or too often . This cou ld cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the b rakes" by resting your
foot on the pedal when yo u do not intend
to brake . Th is may cause the brakes to
overheat, premature wear and increased
stopp ing distance.
- Under certain climat ic and operating
condit ions such as passing throug h wa­
ter, driving in heavy rai n or after wash ing
the vehicle, the effect iveness of the
brakes can be reduced. In winter, ice can
accumulate on the brake pads, lini ngs,
discs and d rums. Carefully apply brakes
f or a test . B rakes wi ll dry and ice coat­
ings wi ll be cleaned
off after a few ca re ­
ful brake applications.
- Driv ing for an ex tended pe riod of time on
salt -covered roa ds without using your
brakes can also affect braking efficiency.
Clean
off accumulated salt coating from
brake discs and pads with a few cautious
brake applicat ions.
- 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 eff ectiveness of
the ent ire brake system.
- Failure of one bra ke c ircuit will impair
the brak ing capability resulting in an in­
cr eased stopp ing distan ce. Avoid dr iv ing
the ve hicle and have it towed to the near­
est Aud i dea le r or q ualified workshop .
- Never le t the vehicle ro ll to a stop w ith
the engine shu t off.
Int ellig ent technolog y 145
-If the brake booster is not working, the
brake peda l must be pressed considera­
bly harder to make up for the lack of
booster assistance.
Electro-mechanical
power assist
The ele ctro-mechanical power assist helps
the driver when steering .
The degree of power assist is electronically
matched to veh icle speed.
The powe r steering system assists the driver
so that he can steer the vehicle with reduced
physical effort.
Power steer ing will not work if the engine is
off . As a result, the steering wheel will be hard
to turn .
A WARNING
If the system develops a problem, you
must seek qualified professiona l assis­
tance.
(D Note
-
If there is an electronic malfunction, ser­
votronic
will still function like a conven­
tiona l powe r steering system, providing a
constant steering support force tha t is no
l onger proportionate to the vehicle speed.
This is most noticeable when t urning the
steering wheel at low speeds (for example
when parking), - more effort w ill be re­
quired than usual.
- Be aware of the different than usual
steering response and adjust your steer­
ing force accordingly.
- Have the problem checked and set right
by an authori zed Aud i dea ler as soon as
possible.
- If a steering malfunction occurs, th is is
signa led w ith the
ls4 or .• indicator
lights and a warn ing tone, see. •
•