brakes AUDI TT ROADSTER 2014 User Guide

Avoid damaging the
vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that
low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
T his is especially true for vehicles with low­
slung chassis (sports chassis) and fully loaded
vehicles .
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads:
- T he water must not be any higher than the
bottom of the veh icle body.
- Do not d rive faster than wa lking speed.
..&, WARNING
After driving through wate r, m ud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads . Dry
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys ­
tem can be severely damaged by driving
through water.
- Check the depth of the water before driv ­
ing through it.
- Do not s top the veh icle, drive in reverse
or switch the engine off when driving
through water.
- Keep in mind that oncoming vehicles may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely.
- Avoid driving thro ugh sa lt water because
it can cause corrosion.
-
Dri vin g and en vironm ent 151
Catalytic converter
It is very important that your emission con­
trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
.,. Always use lead-free gasoline¢ page 161 ,
Fuel supply.
.,. Never run the tank down all the way to emp­
ty.
.,. Never put too much motor o il in your engine
c:::> page 170, Adding engine oil 9::71 .
.,. Never try to push- or tow-sta rt you r vehicle.
The catalytic converter is an efficient "clean­
up" dev ice built into the exhaust system of
the vehicle. The cata lytic conve rter bu rns
many of the pollutants in the exha ust gas be­
f ore they are re leased into the atmosphere .
T he exclusive use of unleaded fuel is critically
important for the life of the catalyt ic convert­
er and prope r fu nct ion ing of the engine .
A WARNING
-
- Do not park or operate the vehicle in
areas where the hot exha ust system may
come in contact with dry grass, brush,
fue l spill or other materia l wh ich can
cause a fire .
- Do not apply additional undercoating or
rustproof ing on or near the exhaust
manifold, exhaust pipes, catalytic con­
verter or heat shields. Dur ing driving, the
substance used for undercoating could
overheat and cause a fire .
(I) Note
-Be aware that just one tank filling with
leaded fuel w ill already ser iously de­
grade the performance of the catalytic
converte r.
- Do not exceed the correct eng ine oil level
c:::> page 170.
- Do not drive until the fue l tank becomes
completely empty . The engine could m is-
fire. Unburned fuel could also get into
IJ,,
•
•

152 Driving and en vironm ent
the exhaust system and this could cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve­ hicle is moving .
- Do not continue to operate yo ur vehicle
under these conditions, as otherw ise fuel
can reach the cata lytic converter . This
could result in overheating of the con­
verter, requ iring its replacement.
- To assure efficient operation of the Emis­
sion Control System:
- Have your veh icle ma intained properly
and in acco rdance with the service rec­
ommendations in your Wa rranty
&
Ma intenance booklet.
- La ck of proper main tenance as well as
improper use of the vehicle will impa ir
t he funct ion of the emission control
system and cou ld lead to damage.
@ For the sake of the environment
E ven when the Emission Contro l System is
operating p roperly, the exhaust gas can
have a s ulfur -like exhaust gas smell under
some operating states. This depends on
the s ulfur content o f the fue l being used.
Using a different brand of fuel may help,
or filling the tank w it h lead-free super
grade gasoline.
Shutting down vehicle
If you wou ld like your veh icle to remain inop­
erat ive for a longer period of time, contact an
Aud i or other specialized dealer . T hey ca n ad­
vise you on necessary precautions e.g . corro­
sion prevent ion, ma intenance and storage.
Pay atten tion to add it iona l information con­
cerning the batte ry . Re fer to ~
page 175.
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex­
haust and noise levels .
Fuel economy, environmenta l impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- oper ating conditions
- technical limitat ions
If you ant ic ipate what you need to do next and
drive economically, you can easily cut your
fuel consumpt ion by 1O-lS percent . This sec­
t ion w ill give you some tips on how you can
help the env ironment and your pocketbook.
@ Tips
The consumption estimates as published
by ENVIRONME NTAL PROTEC TION AG ENCY
( EP A) and Transpo rt Canada may no t corre­
spond to your actual consumption on the
r oad, which will va ry depending upon vehi ­
cle load and speed, road and weather con ­
ditions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they ore ac­
celerating.
Avoid unnecessary acce lerating and braking .
Vehicles use the mos t fu el when they are ac­
ce le rat ing. If yo u ant icipate what is going to
happen next, you will need to brake less and,
t hu s, acce le rate less . Let the vehicle coast
whenever possible -for examp le when you see
that the next traff ic light is red.

156 Vehicle care and cleaning
_& WARNING
- Only wash the vehicle when the ignition
is off and follow the instructions from
the car wash operator to reduce the risk
of accidents.
- To reduce the risk of cuts, protect your­
self from sharp metal components when
washing the underbody or the inside of
the wheel housings.
- After washing the vehicle, the braking ef­
fect may be delayed due to moisture on
the brake rotors or ice in the winter. The
brakes must be dried first with a few
careful brake applications .
@ Note
- If you wash the vehicle in an automatic
car wash, you must fold the exterior mir­
rors in to reduce the risk of damage to
the mirrors. Power folding exterior mir­ rors* must only be folded in and out us­
ing the power folding function.
- To prevent paint damage, do not wash
the vehicle in direct sunlight.
- To reduce the risk of damage, do not
wash the power top with a pressure
washer. -
To reduce the risk of damage, do not
wash decorative decals* with a pressure
washer.
- To reduc e the risk of damage to the sur­
face, do not use insect removing spong­
es, kitchen sponges or similar items.
- Matte finish painted vehicle compo­
nents:
- To reduce the risk of damage to the
surface, do not use polishing agents or
hard wax.
- Never use car wash cycles that apply
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 removed.
@ For the sake of the environment
Only wash the vehicle in facilities specially
designed for that purpose. This will reduce
the risk of dirty water contaminated with
oil from entering the sewer system.
Cleaning and care information
When cleaning and caring for individual vehi­
cle components, refer to the following table.
The information contained there is simply rec­
ommendations. For questions or for compo- nents that are not listed,
refer to an author­
ized Audi dealer or a qualified workshop. Also
follow the information found in~.&. .
Cleaning exterior Component Situation Solution
Wiper blades Dirty
~ page 56, Cleaning windshield wiper blades
Headlights/ Dirty Soft sponge with a mild soap solutional
tail lights
Sensors Dirty Sensors: soft cloth with a solvent-free cleaning product
Camera lenses: soft cloth with an alcohol-free cleaning
solution
Snow/ice Hand brush/solvent-free de-icing spray
Wheels Road salt Water
Brake dust Acid-free special
cleaning solution

Before you check anything in the engine com­
partment,
always r ead and heed all WARN­
ING S
~ A in Working in the engine compart­
ment on page 165.
.. Read the brake flu id level from the brake
fluid reservoir
9 page 167, fig. 130 . The
brake f lu id leve l must be between the "MIN"
and "MAX" markings.
The brake f luid reservoir is located behind the
rear partition of the engine compartment on
the left side
9 page 167.
The fl uid level may drop slightly after some
time due to the automatic adjustment of the brake pads . This is not cause for alarm .
If the brake fluid level falls considerably be­
l ow the "M IN" mark, the brake wa rning/indi ­
cator light (U .S . mode ls:
1111 , Canadian
models: .) will come on ¢
page 14 . Do not
continue to operate the vehicle. The complete
brake system shou ld be thoroughly checked
by an authorized Audi dealer or other quali­
f ied fac ility and the cause corrected . If the
b rake fluid level is too low, the brake warn ing/
i ndicator light w ill illuminate . Co ntact an au­
thor ized Audi dealer
immediately .
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician .
Brake fluid abso rbs moistu re from the a ir . If
the water content in the brake fluid is too
hi gh, cor ros ion in the b rake system may result
after a per iod of t ime . The bo iling po int of t he
b ra ke fluid w ill also decrease considerab ly and
decrease braking performance.
Therefore, the brake flu id must be changed
e very two year s. Always use new b rake fluid
which confo rms to Fede ral Motor Vehicle
Standard "FMVSS 1 16 DO T 4".
The brake flu id rese rvoi r ca n be difficult to
r each, therefo re , we recommend that yo u
h ave the brake fl uid changed by you r autho r­
i zed
Audi dealer . Your deale r has the correct
Checkin g and fillin g 175
tools, the right brake fl uid and t he know -how
to do this for you .
A WARNING
-Brake flu id is poisonous. It must be stor­
ed only in the closed or iginal container
out of the reach of children!
- Brake failure can res ult from o ld or inap­
propriate brake f lu id. Observe these pre­
cautions:
- Use only b rake fluid th at mee ts SA E
spe cificat ion
J 17 03 and conforms to
Federa l Mo to r Ve hicl e Standard 1 16.
Always check with yo ur authorized Au di
dealer to make sure yo u are using the
correct brake fluid. The cor rect type of
brake f luid is also ind icated on the
brake f luid reservoir .
- The bra ke fluid must be new. Heavy use
of the brakes ca n cause a vapor lock if
the brake fluid is left i n the system too
long. This can se riously affect the effi­
c iency of the b rakes as well as your
safety , T his could result in an accide nt.
(!) Note
Brake fluid will damage the pai nt of your
vehicle.
@) For the sake of the environment
Because of the prob lem of proper disposal
of brake fluid as well as the spec ial too ls
r equired and the nec essary expertise, we
r ecommend that yo u have th e brake flu id
c hanged by you r aut ho rized Aud i dea le r.
Battery
General information
Your vehicle is equipped with a specia l bat­
tery, an
ACM battery. This battery is located
in the luggage compartment and must be re­
placed with an origina l equipment batte ry .
Un der normal ope rat ing condit io ns, t he bat-
te ry is
maintenanc e-free . .,.
•
•

182 Tire s and wheel s
-Never mount used tires on yo ur vehicle if
yo u are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden t ire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when driving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age.
(D Note
Please note that summer and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight
means t he comb ined we ight (in excess of
those sta ndard items which may be rep laced)
of au toma tic tra nsmission, power s teer ing,
power brakes, power windows, power seats,
ra dio, and heater, to the extent that th ese
items are availab le as factory -installed equip­
ment (whether installed or not) .
Aspect ratio
means t he ratio of the he ight to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improve d steering re­
sponse and better overall handling on dry pavement .
Bead
means the part of the ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead separation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire . typ
ica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
decrease the e lasticity of summer tires,
which affects tract ion a nd brak ing ability.
If summer tires are used in very co ld tem­
peratures, cracks ca n form on the tread
bars, res ulting in permanent tire damage
that can cause loud driving no ise and un­
balan ced t ires. Audi i s not responsible for
th is type of damage .
Cold tire inflation pressure
means the tire p ress ure recommended by t he
vehicle manufacture r fo r a tire of a des igna ted
s iz e t hat has not bee n driven for more than a
coup le of miles (k ilometers) at low speeds in
t h e three hour period before the tire pressure
is measured or adjusted.
Curb weight
mea ns the we ight of a motor ve hicle with
standard equipment in clu din g the max imum
capacity of fuel, oil, and coolant, air condi ­
tioning and additional weight of optiona l
equipment.
Extra load tire
me ans a tire designed to ope rate a t higher
loads and at highe r inflation p ress ures than
the corresponding standard tire. Extra load
tires my be identified as "XL", "xl", "EXTRA
LOAD", or "RF" on the sidewall.
Gross Axle Weight Rating ("GAWR ")
me ans the lo ad -c a rry ing c apac ity of a s ingle
axle system , measured a t the tire-ground in­
terfaces.
Gross Vehicle Weight Rating ("GVWR ")
mea ns the max imum total loaded we ight of
t h e ve hicl e. .,.

Groove
means the space between two adjacent tread
ribs.
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. You
may not find this information on all tires be­
cause it is no t req uired by law.
Maximum load rating
means the load rating for a t ire at the max i­
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called "maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overa ll diamete r of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ ­
in g elevations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber-coated parallel cords.
Tires and wheels 183
Production options weight
means the combined weight of those installed
regular production options we ighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, ride levelers, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tire in wh ich the ply cords
that extend to the beads are laid at substan­
tia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see ¢ page 182, Cold tire inflation pressure.
Reinforced tire
means a t ire designed to operate at higher
loads and at higher inflat ion pressures than
the corresponding standard tire . Reinforced
tires my be identified as "XL", "xl", "E XTRA
LOAD", or "RF" on the sidewall.
Rim
means a metal support for a tire or a tire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new rim di­
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim flanges .
Sidewall
means that portion of a tire between the
tread and bead. •
•

Driving with different tires reduces vehi­
cle handling and can lead to a loss of
control.
- If the spare tire is not the same as the
tires that are mounted on the vehicle -
for example with winter tires -only use
the spare tire for a short period of time
and drive with extra care. Refit the nor­
mal road wheel as soon as safely possi­
ble.
- Never drive faster than the maximum
speed for which the tires on your vehicle
are rated because tires that are driven
faster than their rated speed can fail
suddenly.
- Overloading tires cause heat build-up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- Temperature grades apply to tires that
are properly inflated and not over or un­
deri nflated.
- For technical reasons it is not always
possible to use wheels from other
vehicles -in some cases not even wheels
from the same vehicle model.
- If you install wheel trim discs on the ve­
hicle wheels, make sure that the air flow
to the brakes is not blocked. Reduced air­
flow to the brakes can them to overheat, increasing stopping distances and caus­
ing a collision.
- Run flat tires may only be used on
vehicles that were equipped with them
at the factory . The vehicle must have a
chassis designed for run flat tires and a
factory-installed tire pressure monitor­ ing system that indicates a loss of tire
pressure. Incorrect use of run flat tires
can lead to vehicle damage or accidents.
Check with an authorized Audi dealer or
tire specialist to see if your vehicle can be
equipped with run flat tires .
If run flat
tires are used, they must be installed on
all four wheels. Mixing tire types is not
permitted .
Tires and wheels 195
@ Note
-For technical reasons, it is not generally
possible to use the wheel rims from oth­
er vehicles. This can hold true for wheels
of the same vehicle type.
- If the spare tire is different from the
tires that you have mounted on your ve­
hicle (for example winter tires or wide
profile tires), then use the spare tire for a
short period of time only and drive with
extra care. Replace the flat tire with the
tire matching the others on your vehicle
as soon as possible.
- Never drive without the valve stem cap .
The valves could get damaged.
(® For the sake of the environment
Dispose of old tires in accordance with the
local requirements.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Temperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shoulder
and maximum section width
¢ page 192,
fig. 142 .
For example: Tread wear 200, Traction AA,
Temperature A.
All passenger car tires must conform to Feder­
al Safety Requirements in addition to these
grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course.
For example, a tire graded 1S0 would wear
one and one half (1 1/2) times as well on the
government course as a tire graded 100. •
•

Important warnings ... ... .. .. .. .. . 177
Location 177
Low ... .. .. .. ... ....... ... .. .. .. . 147
Replacing the battery ........... .. . 176
State of charge . . . . . . . . . . . . . . . . . . . . 147
W inter operation . . . . . . . . . . . . . . . . . . 17 5
Wo rking on the battery . . . . . . . . . . . . . 177
Before driving . . . . . . . . . . . . . . . . . . . . . . . 92
Blended gasoline .......... .. .. .. ... 16 1
Boost . .... .. ................. .. .... 26
Booster seats . .... ..... ... .. .. .. ... 137
Boost pressure ind icator ........... ... 26
Brake fl uid
Changing the brake fluid ... .. .. .. .. .
175
Checking the brake fluid level . ....... 174
What is the correct brake flu id level? .. 174
What should I do if the brake fl uid warn-
ing light comes o n? ................
174
Brake system ... ........... .. .. .. ... 174
Anti-lock brake system ........ ... ... 18
Brake ass ist system ........... ... .. 142
Brake fl uid ................. ... ... 174
Brake fluid spec ifi cat ions for refill and re­
p lacemen t . . . . . . . . . . . . . . . . . . . . . . .
17 5
Brake ligh t de fect ive ................ 20
Brake pads . . . . . . . . . . . . . . . . . . . . . . . 150
General i nformation ... ... .. .. .. .. . 145
How does the moisture or road sa lt affect
the brakes? . ............. .... .. .. .
145
Malfunct ion . . . . . . . . . . . . . . . . . . . . . . . 14
Warn ing/ indicato r lights ....... ... ... 14
Wo rn brake pads symbol ....... ... ... 19
Brea k-in pe riod ... .. .... ... .. .. .... . 150
Brake pads . ............. .... .. ... 150
Tires
Bulbs
C
Ca lifo rnia Proposit io n 65 Wa rning
150
2 16
166
B att ery specific .......... .. .. .. .. . 178
Capac it ies ......................... 224
Carbon parts
Clean ing . . . . . . . . . . . . . . . . . . . .
157, 158
Care .. .. .. .. .. .. ........... .. .. ... 155
Cargo area
refer to Luggage compartment . . . . . . . . 97
Cata lytic converter .................. 151
Inde x 231
CD changer ... .... .. . .. .. ..... ... .. . 66
Certif ication ...... .. ............... 229
Changing a flat tire . ............. .. .. 209
Ch ang ing engine oil ................. 171
Checking
Battery ac id level ............. .... .
178
Engine coolant level ........... .... . 173
Checking t ire pressure ............... 187
Child res train t
Danger of using child res train ts in the
front seat
110
Child rest rain ts
Where can I ge t addi tional in format io n
abo ut child res train ts and the ir use? ..
1 4 1
Child safety .............. .......... 130
Convertible locking retractor ......... 138
Important safety instructions for using
c hi ld safety seats . .. .. ......... .. ..
133
Important t hings to know whe n driving
with children .. .... . ... ...... ... ..
130
Child safety seat .... ........... .... . 135
Convertib le locking retractor ......... 138
Installing . .. .. .. ................. 138
Child safety seats
Booster seats .. .. .. ...............
137
Co nve rtib le child seats ... ... ..... .. 135
How do I properly install a child safety
. h' l ? 133 sea t m my ve 1c e ................. .
Infan t seats . .. .. .... ........... ..
135
Safety instr uctions . .. .. ..... ... .. .. 133
Cigarette lighter ... .. . .. .. ... ..... .. . 65
Cleaning ..... .. ...... ............. 155
C limate controls . .. .. ........... .... . 68
A/C opera tion .. .. .... ............. . 71
Air distribution . . . . . . . . . . . . . . . . . . . . . 70
Air recircu lation mode . . . . . . . . . . . . . . . 71
Automat ic mode ... .. .. .... ... .. .. . 71
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . 68
Defrost . .. .. .. .. .. ............... . 71
Economica l use .. .. . .. .. ... ..... .. . 72
Fan ................... ........... 69
Heated seats . . . . . . . . . . . . . . . . . . . . . . 72
Heating ... .. .. .. .... ........... .. . 68
Pollu tant fi lter . . . . . . . . . . . . . . . . . . . . . 68
Rea r window defogger .. ..... ... .. .. . 71
Switc hing on and off .... .... ... .. .. . 69
•
•