2011 AUDI TT ROADSTER brake fluid

16 Instruments and warning/indicator lights
CRUISE/ vJ' Cruise control
The iR;\l)~i~ (USA models)! II (Canada models)
warn ing/ indicator light illum inates when the
cruise control is act ivated .
~/ !.!r Safety systems
The I (USA models)/ . (Canada mode ls) in ­
dicator light monitors the safety systems e.g.
airbags, pretensioners and illuminates for a
few seconds each time you switch the ignition
on .
If the
I (USA models)/ . (Canada models)
indicator light does not go out, or if it illumi­
nates while you are driving, or if it starts to
blink, then there is a malfunction somewhere
in the system . If the light does not illuminate
when you switch on the ignition, this also
means there is a ma lfunction.
_& WARNING
If you have a malfunction in the safety sys­
tems, contact your authorized Audi dealer
immediately. Otherwise the safety sys­
tems may not work properly in an acci­
dent.
0 Generator
This warning/indicator light detects a mal ­
function in the generator or in the vehicle's
electrical system.
The . warning/indicator light illuminates
when you switch on the ignition and must go
out after the engine has started .
If the . warning/ind icator light illuminates
while you are driving, you should contact your
authorized Audi dealer . Since the vehicle bat ­
tery is discharging, yo u should switch
off any
unnecessary electrical consumers (for exam­
p le, the air conditioner).
0 Note
If the . warn ing/indicator light (mal­
function in the engine cooling system) in
the instrument cluster should illum inate
¢ page 31, stop the veh icle and turn off
the engine. The coolant pump is not work­
in g -this can cause engine damage!
4 Safety belt warning light
Applies to vehicles: wit h safety belt wa rning lig ht
The warning light is a reminder to fasten
safety belts.
T he warn ing light . comes on for a few sec­
onds after the ignition is switched on as a re­
minder to fasten your safety belt.
Additional information on safety belts
¢page 107.
BRAKE/ ((D ) Brake system
This warning/indicator light illuminates when
the brake fluid level is too low or when there
is a malfunction in the ABS, or when the park­
ing broke is set.
T he light 1111 (USA)/ . (Canada) ill umi­
nates when the igni tion is turned on.
It goes
out after the engine has been started and the
parking brake is fully released. This indicates
that the brake warning light is functioning
proper ly.
If the brake warning light does not light up
when the engine is cranking or the parking
brake is applied, there may be a malfunction
in the electrical system. In this case , contact
your Audi dealer.
If the ABS fails, the ABS warning/indicator
li ght
r.t.m:il (USA models)/ l~» (Canada models)
flashes together with the brake system warn­
ing/indicator light¢&.
(USA mode ls) : If the warning light
1111 and
the warn ing light
El illuminate together, im ­
med iately contact your authorized Audi dea ler
or qualified workshop to have all brake pads
inspected
¢ page 32.
When the light comes on, an audible warning
s ignal is also g iven. ..,.

Instrument s and warnin g/indi cator ligh ts 17
Par king brak e set
The 1111 warning/indicator light ill uminates
when the parking brake is set¢
A.
,&. WARNING
,-
- USA models:: If both, the -warning
light and the
m warning light come
on at the same time, the rear whee ls
could lock up first under hard braking.
Lock-up of the rear wheel brakes can
cause loss of vehicle control and an acci­
dent . Have your vehicle repaired immed i­
ately by your authorized Audi dealer or a qualified wo rkshop. Dr ive slowly and
avo id sudden, hard brake applicat ion.
- Canada models: If both, the brake warn­
ing light . and the ABS warning light
Ii] come on at the same time, the rear
wheels co uld lock up first unde r hard
braking . Lock-up of the rear wheel brakes
can cause loss of vehicle control and an
acc ident. Have your vehicle repaired im­
med iately by your authorized Audi dealer
or a qualified workshop. Drive slowly and
avo id sudden, hard brake applicat ion
- If the brake warning/indicator light does
not go out after a few seconds and the
park ing brake re leased, or lights up while
you a re d riving, the fluid level in the
brake fl uid reservo ir is too low. If you be­
lieve that it is safe to do so, p roceed im­
mediately at low speed to the nearest
authorized Audi dealer or qualified wo rk­
shop and have the brake system inspect­
ed.
- Please be very carefu l and always keep in
mind that after several brake applica­
t ions, you will need greater pressure on
the brake pedal to stop your vehicle. Consequently, you must allow for in­
cr eased braking distances. Trying to
brake as quickly as usual could lead to an
acci den t.
ABS/ (8 ) Anti-lock brake system
This warning/indicator light m (USA)/
Ii] (Canada) monitors the ABS and the elec­
tronic differential lock (EDL).
The m light w ill come o n for a few seconds
when the ignition is switched on. The light
will go out after an automatic check sequence
is comp leted.
There is a malfunction in the ABS when:
-The warning/indicator light does not illumi­
nate when you switch o n the ignition.
- The warning/indicator light does not go out
after a few seconds.
- The warning/indicator light illuminates
while driving.
The brake system will still respond e ven
without the a ssistance of the ABS system.
See your author ized Audi de aler as soon as
possible to restore full braking performance.
For more information regard ing the ABS
¢ page 153.
The AB S warning light and the b rake w arn­
ing light come on togethe r. The ABS will not
work and you will no tice a ch ange in braking
r e sponse and perform ance .
Malfunction in the brake sy stem
USA models: If both, the 1111 warning light
and the
B warn ing light come on
¢ page 16when the parking brake is released,
the re may be a malfunct ion in the ABS, and
there may also be a malfunction in the brake
system itself¢
A.
Canada models: If both, the brake warning
li ght . and the ABS warning light
(I] come
o n ¢
page 16 when the parking brake is re­
l eased, there may be a ma lf u nction in the
ABS, a nd there may a lso be a malfun ct ion in
the b ra ke system itse lf¢
A .
Malfunction in th e electronic differential
lock (EDL)
T he two systems EDL and ABS work togethe r.
T he
&1!B w ar ning lig ht w ill come on if there is
a mal func tion in the EDL system¢
page 149. .,.

30 Driv e r in formation sy stem
Battery voltage too high or too low
¢page33
Defective light bu lb
Qpage 33
USA models: Defective brake light
Qpage33
Canada models: Defective brake
light
Q page 33
Light/rain sensor defective (automat­
ic headlights) * defective
Q page 3 4
Adaptive Light* defective
¢page34
Tire pressure monitoring system
¢page212
When a yellow symbol appears, a warning
tone will sound
once. Check the d isp layed
f u nction as soon as possib le. If
more than one
malfunction is detected, a ll symbols will ap­
pear one after the other for abou t two sec­
onds.
Driver information
In addition to th e warning/indicator lights
a nd the symbols in the inst rument cluster dis­
play, driver information is displayed.
F ig . 2 6 Section of instrument cluster: Set/Check b ut­
ton
Driver information appea rs in the disp lay
when a defec tive l ight bu lb is reported by the
defect ive light bulb warning¢
page 33,
when the brake p ads are wo rn and before you
engage a gear. In add
ition, driver information may appear
whe n a red symbo l flashes in the driver dis­
play .
To display Driver information
As an examp le, the . symbo l appears in the
display. If yo u now p ress the button¢
fig. 26,
the following driver message appears in the display:
Switch off engine and che ck oil level
The driver message in the display goes out af­
te r about 5 seconds. Yo u can display t he drive r
message aga in by briefly pres sing the button.
BRAKE /(©) Brake system
The indicator light flashes if the brake fluid
level is too low, if there is a malfunction in
t he ABS sys tem o r when the parking brake is
engaged.
If the - (USA models),1111 (Canada
model s) symbo l flashes in the d isplay w it h t he
par king brake rele ase d, there is a mal func tion
in the brake system. In ad dition to the sym­
bo l, one o f two messages appears in the dis ­
play :
STOP V ehicle and check brake fluid
ABS fault! See Owner's manual
.,. Pull off the road a nd stop the veh icle .
.,. Obtain profess iona l assistance.
USA models: if t here is a ma lf u nction in the
ABS system, the
mES warning/indicator light
illuminates along with the -system
malfu nction warning/ind icator light
Q .&. .
Canada models: if there is a mal function in
the ABS system, the
ti] warning/ indicator
light illum inates together with the . brake
system mal function warn ing/indicator light
Q .&_ .
Parking brake set
The parking brake war ning light -·
(Canada mode ls) illum inates when the park­
i ng brake is set. In addition, a warn ing tone
will sound after yo u have driven for longer

than 3 seconds and faster than 3 mph (5 km/
h).
A WARNING
-Always observe the warnings in
9 page 172, Engine compartment, be­
fore opening the engine hood and check­ ing the brake flu id .
- Driv ing with low brake fluid is a safety
hazard! Stop the car and get professional
assistance.
- If the brake system warn ing/ indicator
light illuminates together with the ABS
warning/ind icator light, t hen the ABS
system is malfunct ion ing . The rear
wheels co uld qu ickly lock up when yo u
apply the brakes. This could lead to loss
o f control and your vehi cle could slide!
Drive carefu lly to the nearest a uthorized
Audi dealer and have the ma lfunction
corrected.
_ L Engine cooling system
A malfunction in the engine cooling system
must be repaired as soon as possible .
When the . symbol in the d isp lay flashes,
then either the eng ine coolan t
temperature is
too high, or the coo lant
level is too low. In ad­
dition to the symbol, the fo llowing message
also appears in the display:
Swit ch off engine and check coolant level
"'Pull off the road and stop the vehicle.
"'T urn off t he engine.
"' Check coolant leve l
9page 185.
"'Add coolant if ne cessary¢ page 186.
"' Contin ue driving only after the eng ine cool -
ant warn ing/indicato r light goes o ut.
"' Contact your authorized Audi dea ler for as-
s istance if necessary.
If the engine coolant level is correct, then the radiator fan may be the cause of the malf unc­
tion .
If the generator wa rning/ind icator light
should also illuminate ¢
page 16, then the
fan belt may be damaged.
Dr iver in formati on sys tem 3 1
A WARNING
-If your vehicle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, tu rn
off the eng in e and tu rn on the haza rd
warn ing ligh ts ¢
page 56, Emergen cy
flasher ~-
-
-Never ope n the hood if you see o r hear
s team or coola nt es caping from the en ­
gi ne compartmen t -you ris k being sc ald ­
ed . Wait unt il yo u can no longer see o r
hea r steam o r coolant escap ing.
- T he engine compa rtment o f any vehicle
is a dangerous area. Be fore you perform
a ny work i n the engine compartment,
turn off the eng ine and allow it to cool.
Follow t he warn ing stickers
9 page 172,
Engine compartment .
(D Note
Do not continue driv ing if the . sym bol
ill uminates. There is a malfunction in the
engine cooling system -you could damage
your engine.
~ Engine oil pr essure
The red engine oil pressure warning symbol
requires immediate service or repair.
If the . symbo l appears in the disp lay and
flashes, the o il pressure is too low . In add ition
to the symbol, the following message a lso ap­
pears in the display:
Switch off engine and check oil le vel
"' Pull off the road an d stop the ve hicle.
"' Shu t the eng ine down.
"' Check the engine oil level¢
page 183 .
"'Contact your authorized Audi dealer for as-
sistance if necessary.
Engine oil level too low
I f the engine oil leve l is too low , top off oil to
the p roper level
¢ page 183. .,.

0/0, Speed warning 2
If the ti] (USA models)l [i] (Canada models)
symbol illuminates, this means you have dr iv­
en faster than the second set vehicle speed.
Slowdown!
¢page 26.
~[) Headlight range control defective
Appl ie s to veh icles: w ith dynamic hea dli ght range a djust­
m ent
If the II ill uminates, the dynamic headlight
range control is no longer working properly.
Have the system checked and repaired at your
authorized Audi dealer.
! ?) Engine speed limitation
A pp lies to veh icles: with e ngine spee d limitat io n
(Pl Do not exceed max. engine speed of XXXX
rpm
The II! symbol illuminates when there is an
engine control malfunction. The indicator
light ~ in the instrument cluster also illumi­
nates . The engine speed is limited to the
speed displayed in the driver information sys­
tem . Keep in mind that the eng ine speed will
not exceed the va lue disp layed in the driver in­
fo rmation system , fo r example when down­
shifting.
Please go to an authorized Aud i dealer or oth­
er qualified workshop to have the malfunction
r epaired.
O Windshield washer fluid level too low
If the (-J '>ymbol illuminates, add windshield
washer fluid to the washer system
¢page 192.
D Battery voltage low
If the (•i symbol illuminates, contact your au­
thor iz ed Audi dealer and have the following
components inspected:
- drive be lt
- battery charge
Driver information system 33
Also see if the generator warning/indicator
light illuminates
¢page 16.
® Defective light bulb warning
The defective light bulb warning tells you
when o vehicle light bulb hos become defec­
tive.
If a defective bulb has been detected by the
system or a light bulb burns out, the
II sym­
bo l with a message appears in the display to
te ll you which bulb is burnt out and where it is
located. For example :
Rear left turn signal
After S seconds, the message disappears. If
you want to recall the message into the dis­
play, p ress the CHECK button
¢page 10,
fig . 3 @ .
The re are three reasons why the defective
bulb message would appear in the disp lay:
- The light bulb has burnt out¢
page 230 .
-The fuse is "blown" ¢ page 22 7, Replacing
fuses .
-The wire connect ion to the light bulb is de-
fective.
Have the bulb replaced or the connection re­
paired by your authorized Audi Service depart­
ment .
.&, WARNING
-Light bulbs are pressurized and could ex­
plode wh ile they are being changed caus­
ing serious pe rsonal injury.
- Work with due care when handling the
high-voltage sect ion of gas discharge
(xenon) lamps. Failing to do so could re­
sult in death or serious injury!
BRAKE LIGHT!< ®> Brake light defective
In case of a malfunction or component fail-
ur e, the symbo l (USA models)/
l1J (Canada models) can appear. The follow­
ing electrical components should be checked,
repaired or replaced, as necessary:

152 Intelligent technology
Corrosion
There may be a tendency fo r dirt to bu ild up
on the brake pads and corrosion to form on
the discs if the car is not driven regularly or
only for short trips with little use of the brakes .
I f the b rakes are not used frequen tly, or if cor ­
rosion has fo rmed on the discs, it is advisab le
to clean
off the pads and discs by b raking
firm ly a few times from a moderate ly high
speed
c> .& .
Fault s in the bra ke sy ste m
If you should notice a sudden increase in
brake peda l travel, then one of the two brake
circu its may have failed¢.& .
Low brake fluid level
Malf unc tions can occur in the brake system if
the brake fl uid level is too low. The b rake fluid
l eve l is monitored electronica lly .
Brake lining wear status
Brake lin ing wea r may be c hecked by visual i n­
spection of the condition of the brake pads
through the openings in the whee l. If neces ­
sary, the whee l may be removed for this in­
spection ¢
page 222, What should I be
aware of when changing a tire?.
Brake power assist unit
The brake power assist un it increases the
p ress ure th at yo u genera te with the b rake
pedal. It works on ly when the engine is run­
ning.
& WARNING
- Yo u should perform braking maneuve rs
for the purpose of clean ing the brake
system on ly if road condit ions permit.
Other road users must not be put at r isk -
you may cause an acc ident!
- Before descending a steep grade, reduce
speed and shift transmiss io n into a lowe r
gear or lowe r driving position . Do not
ride the brak es or ho ld the pedal down
too long or too ofte n. This cou ld cause the brakes to get hot and dimin
ish b rak­
ing efficiency.
- Do not " ride the brakes" by rest ing you r
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 cl imatic and ope rat ing
conditions such as passing through wa­
ter, dr iv ing in heavy rain or after washing
the vehicle, the effectiveness of the
b rakes can be reduced . In wi nte r, ice can
a ccumu late on the br ake pads , lin ings,
d iscs and drums. Cautiously app ly bra kes
for a test . Brakes wi ll dry and ice coat ­
ings wi ll be cleaned
off after a few cau­
tious b rake app lications .
- Driving for an exten ded period of t ime on
salt-covered roads without using your
brakes can a lso affect bra king efficiency.
Clean
off accum ulated salt coating from
brake discs and pads with a few cautious
brake applications.
- If you damage the front spoiler, or if you
install a diffe rent spoiler, be sure the a ir
f low to the front b rakes is not obs truc t­
ed. Otherwise the bra ke system could
overhea t redu cing t he effectiveness o f
the entire brake system.
- Fai lure of one b rake circuit will impa ir
the braking capa bility result ing in an in­
cre ase d stopping dist ance. Avoid driving
the vehicle and have it towed to the near ­
est A udi dealer or qualified workshop .
- Never let the vehi cle roll to a s top with
the engine sh ut
off .
- If t he bra ke booste r is no t working, for
examp le when towing yo ur vehicle, or
because the brake booster has somehow
been damaged, the bra ke peda l must be
pressed considerably harder to make up
for the lack of booster assistance .

162 Cleaning and protection
Cleaning and
protect ion
General information
Regular care preserves vehicle value .
Any automobile is exposed to industr ial
f umes, corrosive road salt, etc. A well cared
for Audi can look like new many years after pu rchase . Regula r and correct care w ill con­
tr ibute to maintain ing the beauty and value of
your Aud i.
Furthermore , good care may be a condition
for substantiating a warranty claim should
corrosion damage or paint de fects occur.
Your authorized Audi dealer has a variety of
dedicated vehicl e-care products and can ad­
v ise wh ich ones to use for cleaning the exter i­
or and inte rior of your vehicle .
Whether you use produc ts recommended by
Aud i or other commercially ava ilable clean ing
agents, please make sure you apply t hem cor­
r ectly .
A WARNING
-Cleaning agents may be poisonous. Keep
them o ut of t he rea ch of childre n.
- Heed a ll ca ution labels.
- Always read directions on th e co ntai ner
b efore using a ny product . Follow the di­
rec tions caref ully.
- Most chemical cleaners a re concentrat ed
and have to be diluted.
- Use spot removing fluids only in well
ventilated areas.
- Do not use gasoline, kerosene, d iesel
fuel, nail pol is h remover or ot her volati le
fluids. They may be toxic, flammab le or
h azar dou s in other w ays. Do not was h,
w ax or dry the vehicle wi th the ig nit ion
on or the eng ine running .
- D o not cl ea n the under sides of ch assis,
f en ders, wheel cove rs , etc. without pro­
tectin g your hands and a rms. You may
c u t yourself on s harp-ed ged metal parts . -
Moisture and ice on b rakes may impair
brak ing eff ic iency
c::> page 151 , General
information.
Test the brakes carefully
each time you wash t he vehicle .
@ For the sake of the environment
Select on ly environ mentally friendly clean ­
i ng products. Leftover cleaning products
s hou ld not d isposed of in the househo ld
waste .
Care of exterior
Washing
Frequent washing protects the vehicle .
The best p rotection against environmen tal i n­
fluences is
frequent wash ing and waxing . How
often t his is requi red depends o n:
- How much t he ve hicle is used
- Whe re the veh icle is parked (garage, i n the
open under trees, etc.)
- The seasona l and weather conditions
- Environmental infl uences
T he longer b ird d roppings, inse cts, tree res in,
r oad and indus trial grime, ta r, soo t, road salt
and other mater ials remain on the vehicle
paint, the more lasting t heir destr uctive ef­
f ects w ill be .
Hig h tempera tures, as from e xpos ure to in­
tense sun light, intensify the co rrosive e ffect
part icu lar ly when humidity is high as well.
Un der certa in ci rcumstances,
weekly w ashing
may be ne cessary. Un der othe r cond it ions , a
mon thly washing and waxing may be a de­
quate.
After the winter, the unders ide of the vehicle
sho uld be thoro ughly washe d pre ferab ly in a
pro fessional ca r wash.
A WARNING ~
A lways read and heed all WARNINGS a nd
the information
c::> page 162.

-Apply the parking brake.
- Move selector lever to "P" (Park).
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wa it until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­
ant could spray out .
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
-If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever to "P" (Park).
Checking and filling 179
-Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts . Tie back hair before
starting, and wear no clothing that will
hang or droop into the engine.
- Minimize exposure to emission and
chemical hazards
9 .&, .
&_ WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc ­
tive harms. Wash hands after handling .
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If
you see spots from oil or other vehicle flu­
ids, have your vehicle inspected by an au­
thorized Audi dealer. •
•