2017 AUDI TT ROADSTER brake

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speed and the distance between your vehi­
cle and other vehicles.
- For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads and when road conditions are
poor (such as ice, fog, gravel, heavy rain and
hydroplaning), because this increases the
risk of a n accident.
- Switch the cruise control off temporarily
when driving in turning lanes, highway exits
or in construction zones.
- Please note that unconsciously "resting"
your foot on the accelerator pedal prevents
the cruise control from braking. This is be­
cause pressing the accelerator pedal over­
rides the cruise control system.
- If a brake system malfunction such as over­
heating occurs when the cruise control sys­
tem is switched on, the braking function in
the system may be switched off . The rest of
the cruise control system functions remain
active as long as the
@;\1)~14 (USA models) I
ill (Canada models) indicator light is on.
@ Tips
The brake lights turn on when the brakes are
app lied automatica lly.
Changing speed
Applies to: veh icles with c ruise control system
.. To increase/decrease the speed in increments,
briefly
tap the lever toward 010 Q page 72,
fig. 77 up/down to the first level.
.. To increase or decrease the speed in incre ­
ments,
tap the lever toward 010 Q page 72,
fig. 77 up/down to the second level.
.. To increase or decrease the speed quickly ,
hold
the leve r in the 0 / 0 direction until the de­
sired speed is reached .
Overriding the speed
Applies to: veh icles with c ruise control system
You can press the accelerator pedal down to in­
crease your speed, for example if you want to
pass someone. The speed you set earlier wi ll re-
Assist
sume as soon as you release the acce lerator ped ­
al.
However, if you are exceeding the stored speed
by a considerable amount for a long time, the
cruise contro l system will temporarily switch off.
The
(ff;ji )~i4 (USA mode ls) Iii (Canada mode ls) in­
dicator light in the instrument cluster turns off
and the stored speed is maintained.
Preselecting the speed
Applies to : vehicles with cruise control system
You can pre-select your desired speed when the
vehicle is stationary.
.. Switch on the ignition.
.. Pull the lever into position (!)
Q page 72,
fig. 77.
.. To increase or decrease the speed, tap the lever
toward
0 10 .
This function makes it possible, for example, to
save the speed you want before driving on the
highway . Once you are on the expressway, acti­
vate the cruise control system by pulling the lev­
er into position (!).
Switching off
Applies to: vehicles with cruise control system
Temporary deactivation
.. Press the brake pedal, or
.. Press the lever toward@(not locked into
place)
Q page 72, fig. 77.
Switching off completely
.. Press the lever into position @(clicked into
place), or
.. Switch the ignit ion off .
The speed you stored will be maintained if the cruise control has been switched off temporarily .
To resume the stored speed, release the brake or
clutch pedal and pull the lever to position (!).
Switching the ignition off will erase the stored
speed .
73

Parking systems
Switching on /off
Applies to: ve hicles w ith park ing system p lus
F ig. 88 Center console : park ing aid button
Fig . 89 optical d istance display
Switching on
.,. Shift into reverse, or
.,. Press the
Pw.A. button in the center console
c:> fig. 88. A short confirmat ion tone sounds and
the LED in the button turns on.
Switch ing off
.,. Drive faster than 6 mph (10 km/h), or
.,. Press the
p,,,A button, or
.,. Switch the ignition off .
Activating automatically
The parking aid is activated automatically at
speeds less than 6 mph (10 km/h) and when ap­
proaching an obstacle from approximately 3.1 ft
(95 cm) away. There are audible signals when ap­
proximately 1.6
ft (SO cm) away from the obsta­
cle .
If you press the p,,1~ button to sw itch the park­
ing a id off, it can only be reactivated automati­
cally when one of the following conditions is met :
- The vehicle speed exceeds 6 mph (10 km/h).
- The ignition is switch off and back on again .
- The parking brake is set and then re leased .
84
-Th e selector lever must be in the P position .
Segments in the visual display
The segments in front of and behind the vehicle
(vehicles with parking system plus*)
9 fig. 89
help you to determine the distance between your
vehicle and an obstacle. The red lines mark the
expected direction of travel according to the
steering ang le. A white segment indicates an
identified obstacle that is outside of the vehicle's
path. Red segments show identified obstacles
that are in your veh icle's path. As your vehicle
comes closer to the obstacle, the segments
move
closer to the vehicle . The collision area has been
reached when the next to last segment is dis­
played . Obstacles in the collision a rea, incl uding
those outside of the vehicle 's path, are show n in
r ed . Do not continue driving forward or in reverse
c:> & in General information on page 82, ¢(D in
General information on page
82!
Rearview camera
Introduct ion
App lies to: vehicles wit h rearv iew camera
Fig. 90 Diag ram : lines to aid in park ing
The rearview camera helps you to park or maneu­
ver using the orientation lines .

Intelligent Technology
Intelligent Technology
Electronic stabilization
control (ESC)
Description
Electronic Stabilization Control (ESC) supports
driver safety.
It reduces the risk of slipping and
improves driving stability. ESC detects critical sit­
uations such as the vehicle oversteering and un­
dersteering or the wheels are spinning. The vehi­
cle is stabilized by applying the brakes or reduc ­
ing engine torque. When ESC engages, the
G1 in­
dicator light blinks in the instrument cluster.
The following systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking when brak­
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assist system
The brake assist system can decrease braking dis­
tance. It increases braking power when the driver
presses the brake pedal quickly in emergency sit­
uations . You must press and hold the brake pedal
until the dangerous situation is over .
Anti-slip regulation (ASR)
ASR reduces engine power when the drive wheels
begin spinning and adapts the force to the road
conditions. This makes it easier to start, acceler­
ate and drive up hills .
Electronic differential lock (EDL)
EDL applies the brakes to a wheel that starts
spinning and transfers the drive power to the
other driving wheels. This function is not availa­
ble at higher speeds.
In extreme cases, EDL automatically switches
off
to keep the brake on the braked wheel from over­ heating. The vehicle is still working correctly. EDL
will switch on again automatically when condi­
tions have returned to normal.
88 Steering
recommendation
The ESC helps to stabilize the vehicle by changing
the steering torque.
Selective wheel torque control
Selective wheel torque control is used when driv­
ing on curves. The front whee l on the inside of
the curve or both wheels on the inside of the
cu rve are braked selectively as needed. This al­
lows more precise driving in curves. The applica ­
ble system may not activate when driving in wet
or snowy conditions.
A WARNING
- The ESC and its integrated systems cannot
overcome the limits imposed by natural physical laws. This is especially important
on slippery or wet roads. If the systems be­
gin acting to stabilize your vehicle, you
should immediately alter your speed to
match the road and traffic conditions. Do
not let the increased safety provided tempt
you into taking risks. This could increase
your risk of a collision .
- Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when driv­ ing too close to objects ahead. The ESC and
its integrated systems cannot always pre­
vent collisions -there is still a risk of acci­
dents!
- Press the accelerator pedal carefully when
accelerating on even, slippery surfaces such
as ice and snow. The drive wheels can spin
even when these control systems are instal­
led and this can affect driving stability and
increase the risk of a collision.
(j) Tips
-The ABS and ASR only function correctly
when all four wheels have a similar wear
condition. Different tire sizes can lead to a
reduction in engine power.
- You may hear noises when the systems de­
scribed are working.

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Intelligent Technology
Switching on and off
ESC turns on automatically when you start the engine.
Fig. 95 Upper center console, fj. OFF b utton
The ESC is designed to function in levels . Depend­
ing on the level selected, the ESC stabilization funct
ion is limited or switched off. The amount of
stab ilizat ion control will d iffer depending on the
level.
T he following examples are unusua l situat ions
where it may make sense to switch sport mode
o n in order to allow the wheels to spin:
- Rocking the vehicle to free it when it is stuck
- Dr iving in deep snow or on loose g round
- Dr iving with snow chains
Sport mode on ESC/ASR off Sport mode off or ESC/ ASR
on
Behavio r
The ESC and ASR stabiliza- The stabilization funct ion is The f ull stabilization func-
tion funct ions are limited not availab le
¢ .&. . ESC and tion of the ESC and ASR is
¢ .&.. ASR are switched off. availab le aga in.
Operation Press the l.e OFFI but ton Press and hold the l.e OFFI Press the l .e OFFI but ton
briefly. button longer than 3 sec- aga in .
onds .
Indicator II turns on. II and l*JJ•U~* tu rn on. II turns off or II and
liil•IH * tu rn off. light s
Messages Stab
ilization control (ESC ): Stab ilization con trol (ESC ): Stab ilization cont rol
sport . Warning! Reduced off. Wa rning! Reduced sta -(ESC): on
stability
A WARNING
Y ou shou ld only swit ch spo rt m ode on or
switch ESC/ ASR off if your driving ab ilities
a n d roa d conditions permi t.
bility
- T he s tabiliz ation func tion is li mite d when
s por t mode is sw itched on. The driving
whee ls co uld spi n and the vehicle cou ld
swerve, espec ially on s lick or s lippery roa d
surfaces.
- There is no vehicle stabi lization when ESC/
ASR are switched off.
(D Tips
Wh en the cruise cont rol sys tem is swi tched
on, ESC/ ASR can not be swi tched o ff or sport
mo de can not be swit ched on .
Brakes
New brake pads
New brake pads do not achieve their fu ll braking
effect duri ng the first 250 mi (400 km) . They
must be "broke n in" first. Howeve r, you can com­
pensate fo r th e slightly reduced braking force by
pressing f irm ly on the b rake pedal. Avo id heavy
bra king d urin g the brea k-in pe riod .
Wear
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions.
T his is espec ially true if yo u are dr iv ing freq uently
in t he ci ty and o n curves or w ith a spo rty d rivi ng
sty le.
IJI,,
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Intelligent Technology
Operating nois e
Noises may occur when br aking depend ing on the
speed, b raking force and outside cond itions such
as tempe rature and humidity.
Effect of water and road salt
I n ce rtain s ituations, for example after driving
through wa ter, in heavy ra in, afte r ove rnig ht con ­
densat ion or after washing your car, the braking
effect can be reduced by moisture or ice on the
brake rotors and brake pads. The brakes must be
"dried" first w ith a few careful brake applica­
tions.
At highe r speeds and with the windshie ld wipers
turned on, the brake pads press against the brake rotors for a short amount of time . Th is action,
which is not felt by the driver, happens at regular
intervals and ensures a better reaction time for
the brakes in wet weather .
The braking eff ect can also be reduced if you are
driving on salted roads and you do not apply the
brakes for long periods of time. The layer of salt
on the brake rotors and pads must be worn off
first when the brakes are applied .
Corrosion
Leaving the vehicle parked for long periods of
time, low mi leage and avoiding heavy braking
can contribute to corrosion on the brake rotors
and to dirty brake pads .
If you usually avoid heavy braking or if there is
corros ion present, occasional heavy braking at
h igh speeds is recommended to clean the brake
rotors and pads
¢ ,& .
Brake system malfunct ion
if you notice that the brake pedal travel has sud­
denly increased, then a brake c ircuit in the dual­
circu it brake system may have malfunct ioned.
Drive to an authorized Aud i dea ler or aut horized
Aud i Serv ice Facility immediately to have t he
p roblem co rrected . On the way there, drive with
reduced speed and keep in mi nd that you w ill
need a longer d istance to s top and you w ill need
to p ress the brake pedal har der.
90
Low brake fluid level
When the brake fluid level is low, m alfunc tions in
the b rake system may occur . The brake fluid leve l
i s e lectronically monitored .
Brake booster
The brake booster ampl ifies the press ure you ap­
ply to the brake pedal.
_&. WARNING
- New brake pads do no t achieve the ir full
braking effect during the first 2 50 m i
-
(400 km). They m ust be "b roken in" first .
However, you can compensate fo r the
slightly reduced braking force by pressing
firm ly on the brake pedal. Avoid heavy brak­
ing during the break-in period .
- On ly app ly the bra kes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en­ danger other road users . This increases the
ris k of an accident.
- On steep slopes, reduce the speed and se­
lect a lower gear o r lower selector leve r po·
si tion. D rive as little as possible while press­
ing the bra ke pedal and avoi d pu tting your
left foot on the brake pedal while dr iv ing.
This could cause the bra kes to overhea t and
impair the efficiency of the b rakes.
- Do not let the bra kes "grind" by always
keep ing your foot on the bra ke pe dal. This
can cause the brakes to overheat, inc rease
wear and increase braking distance unneces­
sarily .
- Ce rtain weather and operating conditions
such as d riving through water, dr iv ing in
heavy rain or driv ing after wash ing your ve­
hicle can impai r the effective ness of the
brakes . In t he win ter, ice may build up o n
the bra ke pa ds, rotors and dr ums. Check
t hese components by b raking carefully. Ap ­
plyi ng the brakes carefully seve ral times
dries the brakes and removes ice build-up .
- The efficiency o f th e brakes can also be im­
p air ed by dr iv ing for long s tretches on roads
covered with sa lt wi thout using the bra kes .
You can remove salt deposits from the ..,.

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brake rotors and pads by caref ull y applying
the brakes several t imes .
-If the front spoiler is damaged or you install
another spoiler, make sure the front wheel
brakes are vent ilated properly. Otherwise,
the brake system could overheat, wh ich re­
duces the ir effectiveness .
- Failure of a brake circuit impairs b raking
performance , which increases brak ing dis­
tance. Avoid driving the vehicle and have it
towed it to the nearest author ized Audi
dealer or author ized A udi Se rvice Facility.
- Never let the vehicle roll while t he engine is
stopped because this increases the risk of a n
acc iden t.
- If the bra ke booste r is not working, you will
have to press m uch ha rder on the bra ke
ped al to compensate for the lac k of th e
booster.
- Never let the brakes "rub " by pressing the
pedal light ly when bra king is no t actually
ne cessary . T his cause s the brakes to over­
hea t and i ncre ases br aking di stance and
ca uses wear.
- B efo re driv ing downh ill a long dis tance on a
steep h ill, decrease your speed and se lec t a
l ower gear . This makes use of the engine
braking effect and relieves the brakes . If
you need to b rake additionally, brake in in­
tervals and not continuously.
@ Tips
- If the brake booste r is not working, you
must press the brake pedal with much more
fo rce than normal.
- If you retrofit yo ur vehicle with a front spoil­
er, whee l
covers or similar items, make sure
that the air flow to the front whee ls is not
i nterr upted . Otherw ise the brake system
ca n become too hot .
Intelligent Technology
Electromechanical
steering
The electromechanical steering supports the
driver 's steering movements .
Power steering adap ts elec tronically based on
the ve hicle speed.
Indicator light s and message s
• Steering: malfun ction! Please stop vehicle
If this indica to r li ght tur ns on and st ays on and
t hi s message appea rs, the powe r steering may
have failed.
Stop t he vehi cle in a safe location as soon as pos­
s ible. Do
not cont inue drivi ng. See an autho riz ed
Audi dealer or authorized A udi Service Fac ility for
assistance .
l;r- ij S teering : malfun ction! You may continue
driving
If the indicator light turns on, the steering wheel
may be more d ifficult to
move or more sensit ive
t h an usua l. Th e steer ing whee l may a lso be at an
angle when d riving s trai ght.
D rive slowly to an a uthorized Audi dea ler or au­
t h orized Audi Serv ice Facility to have the mal­
funct ion corre cted.
(D Tips
If the . or l;r, ij ind icator light only s tays on
fo r a short time, you may continue d riving.
All wheel drive (quattro)
In all wheel drive, all four wheels are powered.
General information
In all whee l dr ive, the dr iv ing power is divided be­
tween all four wheels . This happens automatical ­
ly depending on you r dr iv ing behav ior as we ll as
t h e cur rent road condi tions. A lso see ~
page 88,
Elec tronic stabilization con trol ( ESC).
T he all whee l dr ive concept is des igned for high
engine power . You r vehicle is except ionally pow­
erfu l and has excellent driv ing cha racteristics
bot h unde r normal d rivi ng conditions and o n
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for an extremely small period of time. Data that
is recorded in such a case may include vehicle
speed, driving direction, the load on the brakes
and head restraints and performance in the event
of an acc ident or other change in status. The
stored data can only be read or downloaded with
special devices .
Intelligent Technology
95

Safe dri ving
Examples of improper seating positions
The occupant restraint system can only reduce
the risk of injury if vehicle occupants are properly
seated.
Improper seating positions can cause serious in­
jury or death . Safety belts can only work when
they are properly positioned on the body . Im­
proper seating positions reduce the effect iveness
of safety belts and w ill even increase the r isk of
inj ury and death by moving the safety be lt to crit­
ical areas o f the body . Improper seating positions
also increase the risk of serious injury and death
when an airbag deploys and strikes an occupant
who is not in the proper seating position. A driver
is responsible for the safety of all vehicle occu­
pants and especially for children. Therefore :
~ Never allow anyone to assume an incorrect
seating position when the vehicle is being used
c:> .&_ .
The fo llowing bulletins list only some sample po­
sitions that will increase the risk of serio us inj ury
and death. Our hope is that these examples will
make you more aware of seating posit ions that
are dangerous .
Therefore, whenever the vehicle is moving:
- never stand up in the ve hicle
- never stand on the seats
- never knee l on the seats
- never r ide with the seatback reclined
- never lean up against the instrument panel
- never sit on the edge of the seat
- never sit s ideways
- never lean out the window
- never put yo ur feet out the window
- never put yo ur feet on the instrument panel
- never rest your feet on the seat cushion or back
of the seat
- never ride in the footwell
- never r ide in the cargo area
A WARNING
Improper seating posit ions increase the r isk
of se rious personal injury and death wheneve r
a vehicle is being used.
184 -
Always make sure that all vehicle occupants
stay in a proper seating posit ion and are
properly restrained whenever the vehicle is
be ing used .
Driver and passenger
side footwell
Important safety instructions
A WARNING
A lways make sure that the knee airbag can in­
flate without interfe rence. Objects between
yourself and the airbag can increase the risk
of injury in an accident by interfering with the
way the ai rbag dep loys o r by being pushed in­
to you as the airbag dep loys.
- No persons (chi ldren) or animals should ride
in the footwell in front of the passenger
seat. If the airbag deploys, this can res ult in
serious or fatal injuries.
- No objects of any kind should be carried in
the footwell area in front of the driver's or
passenger 's seat. Bu lky objects (shopping
bags, for examp le) can hamper or prevent
proper deployment of the airbag. Small ob­
jects can be thrown through the vehicle if
the airbag deploys and injure you or your
passengers.
Pedal area
' Pedals
The pedals must always be free to move and
must never be interfered with by a floor mat or
any other object.
Make sure that all pedals move free ly without in­
terference and that nothing prevents them from
returning to their original positions.
Only use floor m ats that leave the pedal area free
and can be secured with floor mat fasteners.
If a brake circuit fails , in creased brake pedal trav-
el is required to bring the vehicle to a fu ll stop. .,..