brakes AUDI TT ROADSTER 2017 User Guide

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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

Wheels
able to provide you with more in­
formation.
® Mud and snow capability
"M/S" or "M+S" indicates the tire
has properties making it suitable
to drive in mud or snow.
& indi­
cates a w inter t ire.
@ Compos ition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay­
ers in the tire . In general: the
more layers, the more weight a
tire can carry. Tire manufacturers must also specify the materia ls
used in the tire. These include
steel, nylon, polyester and other
materials .
@ Maximum permitted load
This number indicates the maxi ­
mum load in k ilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for treadwear,
traction and temperature
resistance
Tread wear, t raction and temper ­
ature ranges ¢
page 262.
248
@ Running direction
~ Maximum permitted
inflation pressure
This number indicates the maxi ­
mum pressure to wh ich a t ire can
be inflated unde r normal operat­
ing condit ions .
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­
matic transmission , power steer­
ing , power brakes , power win­
dows, power seats , radio, and
heater, to the extent that these
items a re available as fac tory-in­
stalled equipment (whet her in ­
stalled or no t).
Aspect ratio
means the rat io of the height to
the width of the tire in pe rcent.
Numbers of 55 or lower indicate a
low sidewall fo r imp roved steer­
ing response and better overa ll
handling on dry pavement .
Bead
means the part of the tire that is
made of steel wires, wrapped or ...

Wheel s
(c) Vehicle capaci ty weight, and
(d) Production options we ig ht
Maximum (permissible)
inflation pressure
means the maximum cold infla­
tion pressure to which a tire may be inflated . Also called "max i­
mum i nflation pressure ."
Normal occupant weight
means 150 lbs (68 kg) times the
number of occupants seated in
the vehicle up to the to tal seat ing
capacity of your vehicle .
Occupant distribution
means distribution of occupants
in a vehicle.
Outer diameter
means the overall diameter of an
inflated new tire.
Overall width
means the linear distance be­
tween the exteriors of the side ­
walls of an inflated tire, inc luding
e levations due to label ing, deco­
rations, or protective bands or
ribs .
Ply
means a layer of rubber-coated
parallel cords .
250
Production options weight
means the combined weight of
those installed regular product ion
options weighing over 5 lbs (2.3 kg) in excess of those standard
items which they replace, not pre­
viously considered in curb weight or accessory weight, including
heavy duty brakes , ride levelers,
roof rack, heavy duty ba ttery, a nd
special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are la id at substantially 90
deg rees to the centerline o f the
tread.
Recommended inflation
pressure
see ¢ page 249 , Cold tire infla­
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire . Rein ­
forced tires may be identified as "XL", "xl", "EXTRA LOAD", or "RF"
on the s idewall. ...

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150 lbs (68 kg) for each passen­
ger at a designated seating posi­
tion and the total weight of any
luggage in the vehicle .
The
Gross Axle Weight Rating
("GAWR") is the maximum load
that can be applied at each of the
vehicle's two axles.
The fact that there is an upper
limit to your vehicle's Gross Vehi­
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle is limited.
The more passengers in the vehi­
cle or passengers who are heavier
than the standard weights as­
sumed mean that less weight can
be carried as luggage.
The Gross Vehicle Weight Rating
and the Gross Axle Weight Rating
are listed on the safety compli­
ance sticker label located on the
driver's side 8-pillar
¢ page 256,
fig. 190.
&_ WARNING
Overloading a vehicle can cause
loss of vehicle control, a crash
or other accident, serious per­
sonal injury, and even death.
-Carry ing more weight than
your vehicle was designed to
carry will prevent the vehicle
Wheels
from handling properly and
increase the risk of the loss of
vehicle control.
-The brakes on a vehicle that
has been overloaded may not
be able to stop the vehicle
within a safe distance.
-Tires on a vehicle that has
been overloaded can fail sud­
denly, including a blowout and
sudden deflation, causing loss
of control and a crash.
-Always make sure that the to­ tal load being transported
does not make the vehicle
heavier than the vehicle's
Gross Vehicle Weight Rating.
Determining correct load
limit
Use the example below to calcu­
late the total weight of the pas­
sengers and luggage or other
things that you plan to transport
so that you can make sure that
your vehicle will not be overload­ ed.
Steps for Determining Correct Load Limit
1 . Locate the statement "THE
COMBINED WEIGHT OF OCCU-
PANTS AND CARGO SHOULD .,.
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wash operator to reduce the risk of acci­dents.
- To reduce the risk of cuts, protect yourself
from sharp metal components when wash­
ing the underbody or the inside of the wheel
housings .
- After washing the vehicle, the brak ing effect
may be delayed due to mo isture on the
brake rotors or ice in the w inter . This in­
creases the risk of an acc ident. The brakes
must be d ried fi rst w ith a few careful b rake
applications.
(D Note
- If you wash t he vehicle in an automatic car
wash, yo u m ust retract the extendable rear
spo iler* if necessary, and fold the exter ior
mir rors in to red uce the risk of damage.
Power folding e xte rior m irrors * mus t onl y
be fo lded in and ou t using the power folding
f u nct ion .
- To reduce the risk of pai nt d amage, do no t
wash the vehicle in di rect sunlig ht.
Ca re and cleaning
- To re duce the risk of damage, do not wash
the power top with a pressure washer .
- T o red uce the risk of damage to the surface,
do not use insect removing sponges, kitche n
sponges o r similar items .
- Matte finish painted veh icle components:
- To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint . The paint could be damaged
when the stickers or magnets are re­
moved.
@ For the sake of the environment
Only wash t he veh icle in facili ties s pec ially de­
s igned for that pu rpose . This will reduce the
r isk of dirty wate r contamina ted with o il from
ente ring the sewe r sys tem.
Cleaning and care information
W hen cle aning and ca ring for individua l vehicle
components, refer to the following tables . The
info rmation contained there is simply recom ­
mendations. Fo r questions or for components t
h at are not l isted, cons ult an autho riz e d Aud i
dealer or au thorized A udi Service Fac ility . Also
fo llow the information found in¢& .
Exterior cleaning
Component Situation Solution
Windshield wiper
Deposits c::- page44
blades
Headlights /
Deposit s So
ft sponge wi th a m il d soap solutiona )
Tail light s
Sensors /
Deposits Sensors: soft cloth with solvent-free cleaning solut ion
Camera lenses Camera lenses: soft cloth w ith alcohol -free cleaning solu -
tion
Snow/ice H
and brus h/solvent-free de-icing spray
Wheels Road salt Water
Brake dust Acid-free special clean ing solution
Exhaust tail pipes Road salt Water, clea ning solution su itab le for stainless stee l, if nee-
essa ry
267

Index
AUTO Automatic climate control system . . . . . . . 53
Automatic headlights . . . . . . . . . . . . . . . . . 39
Auto Lock (central locking) . . . . . . . . . . . . . . 24
Automatic belt retractor . . . . . . . . . . . . . . . 192
Automatic climate control system
refer to Climate control system (automatic) .S3
Automatic key . . . . . . . . . . . . . . . . . . . . . . . . . 24
Automatic transmission . . . . . . . . . . . . . . . . . 63
Driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Emergency mode . . . . . . . . . . . . . . . . . . . . . 70
Hill descent contro l . . . . . . . . . . . . . . . . . . . 68
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
La unch Control-Program . . . . . . . . . . . . . . . 69
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 65
Selector lever emergency release . . . . . . . . 71
Selector lever lock . . . . . . . . . . . . . . . . . . . . 65
Selector lever positions . . . . . . . . . . . . . . . . 64
Shifting manually . . . . . . . . . . . . . . . . . . . . 68
Steering wheel with shift paddles. . . . . . . . 68
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Automatic wipe/wash system . . . . . . . . . . . . 43
Automatic zoom (navigation) . . . . . . . . . . . 146 Brakes . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Brake assist system . . . . . . . . . . . . . . . . . . . 88
Brake booster . . . . . . . . . . . . . . . . . . . . . . . . 89
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 242
Electromechanical parking brake . . . . . . . . 62
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 10
New brake pads . . . . . . . . . . . . . . . . . . . . . . 89
Braking Brake assist . . . . . . . . . . . . . . . . . . . . . . . . . 88
Emergency braking function . . . . . . . . . . . . 62
Worn brake pads . . . . . . . . . . . . . . . . . . . . . 14
Break-in security feature . . . . . . . . . . . . . . . . 24
Breaking in New engine . . . . . . . . . . . . . . . . . . . . . . . . . 57
New tires . . . . . . . . . . . . . . . . . . . . . . . . . . 253
Browser
refer to Media center . . . . . . . . . . . . . . . . . 165
Bulb failure (indicator light) . . . . . . . . . . . . . 16
Bulb replacement . . . . . . . . . . . . . . . . . . . . . 283
Buttons Control panel (MMI) . . . . . . . . . . . . . . . . . . 96
Multifunction steering wheel . . . . . . . . 20, 22
Auto Safety Hotline . . . . . . . . . . . . . . . . . . . 187 C
AUX input . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Average fuel consumption . . . . . . . . . . . . . . . 23
Average speed . . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damaging the vehicle . . . . . . . . . . . . . . 57
B
BACK button . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Balance (sound) . . . . . . . . . . . . . . . . . . . . . . 179
Bass (sound) . . . . . . . . . . . . . . . . . . . . . . . . . 179
Battery Jump starting . . . . . . . . . . . . . . . . . . . . . . . 284
Before driving . . . . . . . . . . . . . . . . . . . . . . . . 181
Better route (navigation) . . . . . . . . . . . . . . . 150
Blended gasoline . . . . . . . . . . . . . . . . . . . . . 231
Blower (climate control system) . . . . . . . . . . 53
Bluetooth Aud io player . . . . . . . . . . . . . . . . . . . . . . . . 159
Connecting a cell phone . . . . . . . . . . . . . . 114
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Booster seats . . . . . . . . . . . . . . . . . . . . . . . . 225
Brake fluid Checking the brake fluid level . . . . . . . . . . 242
298
Cable (USB adapter/AUX connector cable) 162
California Proposition 65 Warning . . . . . . . 235
Battery specific . . . . . . . . . . . . . . . . . . . . . 243
Call list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Call options . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Capacities Fuel tank ..... ... .. .. ............... 291
Washer fluid reservoir . . . . . . . . . . . . . . . . 291
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 266
Cargo area
refer to Luggage compartment . . . . . . . . . 185
CD drive (media drives) . . . . . . . . . . . . . . . . 158
Cell phone Playing music . . . . . . . . . . . . . . . . . . . . . . . 159
also refer to Telephone . . . . . . . . . . . . . . . 114
Central locking . . . . . . . . . . . . . . . . . . . . . . . . 24
Centra l locking sw itch . . . . . . . . . . . . . . . . . 28
Emergency locking . . . . . . . . . . . . . . . . . . . . 29
Luggage compartment lid . . . . . . . . . . . . . . 29
Power windows . ... .. ................ 31
Remote control key . . . . . . . . . . . . . . . . . . . 26
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28