2011 AUDI TT ROADSTER coolant level

Instrument s and warning /indicator lights 11
Digital clock with date display
Your vehicle is equipped with a quartz con­
trolled digital clock .
Fig. 4 In str um en t cl uster w ith th e dig ita l cloc k
To set the hour
.. Pull the knob (hou r d isplay flashes) and turn
it t o the left o r right.
To set the minutes
.. Pull the knob as many times as necessary
un til the mi nute display flash es.
.. Turn the knob to the left or right .
To set the date
.. Pull the knob as many times as necessary
until the day, month or year display flashes.
.. Turn the knob to the left or right .
To hide or d isplay the d ate
.. Pull the knob as many times as necessary
unti l the date display flashes.
.. Turn the knob to the left or right.
When the date disp lay stops blinking, this
means the time and date have been success­
fu lly stored.
W ith the ignition off, pushing or pulling the
Set/Check button
~ page 10, fig . 3 ® -de­
pending on the instr ument cluster config ura­
tion - can turn on the display field lighting for
a few seconds .
Engine coolant temperature gauge
The engine coo lant gauge ~ page 10, fig . 3 @
only wor ks when the ign ition is on. To prevent
damage to your engi ne, please note t he fo l­
lo wing important points :
Engine cold
As long as the need le rem ains a t the left end
of the gauge, the engine s till has not reac hed
its operating temperat ure. Avoid high engine
speeds, heavy e ngine loads and heavy throt­
tle.
Normal temperature
When the engine has re ache d its ope rat ing
temperature, the need le w ill move into the
mid dle of t he gauge and rema in there .
If the
engine is working hard at high outside tem ­
peratures, the needle may turn fu rther to the
right. This is no cause for concern as long as
the . war ning light i n the inst rument cluster
does not illuminate .
When the. warning light starts to f lash,
th is can mean one of two things: either the
coolant
temperature is too high, o r the coo l­
ant
level is too low ~ page 31 .
A WARNING
--Always obs erv e the warn ing in
~ page 17 2, Engine compar tment be ­
fore opening the eng ine hoo d and check­
ing the eng ine coolan t leve l.
- N ever ope n the eng ine hood if you see or
hea r ste am, or if you see e ngine c oo la nt
dripping from t he en gine compar tment .
You could burn yourse lf . Let the engi ne
coo l off fi rst so that you can not hear or
see any steam or engine coo lant.
(D Note
- M ounting ad ditiona l lights or accessories
in front of the air inlets reduces the coo l­
ing effect of t he radiato r. At high o utside
tempe rat ures or h igh engine load, the
eng ine could overheat.
- The front spoiler has been designed to
properly d istribute the cooling a ir when
the vehicle is movi ng. If the spoiler is
damaged, this could reduce the coo ling
e ff ect a nd the eng ine could then ove r­
heat . As k yo ur au thori zed A udi deal er for
assis tan ce.

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. ..,.

If the engine control unit receives fau lty vehi ­
cle roadspeed signa ls , the Ma lfunction Indica­
tor Light (MIL)
Ill will illum inate . If th is oc­
curs, contact the nearest authori zed Audi
dealer for assistance.
S mod els
Your vehicle 's top speed is e lectronically limit­
ed to 155 mph (250 km/h).
If the engine control unit rece ives fa ulty vehi ­
cle roadspeed signa ls , the Ma lfunction Indica­
tor Lamp (MIU ¢• will i lluminate. If this oc­
curs, contact the nearest authorized Audi
dea ler for assistance.
A WARNING
-
Always observe the posted speed limits
and adjust your speed to suit prevailing
road, traff ic and weather conditions. Never
drive your vehicle faster than the maxi­
mum speed rating of the tires insta lled.
Warnings and symbols
Red symbols
A red symbol means DANGER
" Pull of the road and stop the veh icle .
"T urn off the engine.
" Check the ma lf u nction ing system. Contact
your autho rized Audi dea le r o r a qualified
workshop for assistance.
- USA models : Malfunction in the
brake system ¢
page 30
---·--
D
Canada models : Malfunction in the
brake system ¢
page 30
Engine coolant level too low/
engine coolant temperature too
high
r:1;> page 31
Engine oil pressure too low
¢page 31
Clutch is overheat ing
c:1;> page 92
Dr iver in formati on sys tem 29
When a red symbol appears, a warning tone
will sound
three times in succession . The sym­
bo l cont inues to flash unti l the malfunction
has been repaired. If there is
more than one
malfunc tion, the symbo ls appear one after
the other for about two seconds .
(D Tips
- The message for a malfunction can be
shown by pressing on the left knob.
- Dur ing route guidance on vehicles with a
navigation system, the warn ing symbol
is shown in the field above.
Yellow symbols
A yellow symbol means WARNING.
Ii
Low fuel leve l
¢page32
- -- Check engine oil level
151!1 ¢page 32
- Engine oil sensor malfunction
l:ill ¢ page 32
Worn brake pads
¢page32
USA models : Speed warning 1
c:1;> page 3 2
Canada models : Speed warning 1
¢page32
USA models: Speed warning 2
c:1;> page 3 3
Canada models: Speed warning 2
c:1;> page 33
Dynamic headlight range contro l*
defective
¢ page 33
-Engine speed limitation *
c:1;> page 33
Windshield washer fl ui d leve l low
c:1;> page 33

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. .,.

wooded areas, into open streams or
down sewage drains.
- Recycle used engine oil by taking it to a
used engine oil collection facility in your
area, or contact a service station.
Engine cooling system
Coolant
T he engine coolan t performs two functions: it
keeps the engine from overheating and it pro ­
tects the engine from freezing in the winter .
The cooling system is sealed and generally re­
quires little attention .
T he cooling system has been filled at the fac­
tory with a permanent coolant which does not
need to be changed . The coolan t consis ts of a
mixture of water and the manufacturer 's gly ­
col-basedcoolant additive G12 ++ antifreeze
with anticorrosion additives (50% for USA
models; 60% for Canad ian models). This mix­
ture both assures the necessary frost protec­
tion and protects metal components in the
engine 's cooling system from corrosion and
scaling. It also raises th e boiling point of the
c oolant.
Do not reduce the concentration of the coo l­
ant in the summer by adding plain water .
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main­
tain antifree ze protection and cooling efficien­
cy . If the coolant frost protection is too low,
the coolant could freeze and damage the veh i­
cle heating and eng ine cooling system .
For year-round driving, an tifree ze is added at
the factory for temperatures down to:
- -31 ° F ( - 3 5 °C) USA
- -40 °F ( -40 °C) Canada.
You can mix the G12 ++ coolant addit ive with
other additives (G12+ or G12) . Always check
with your authorized Audi dealer.
& WARNING
Before you check anything in the engine
compartment, always read and heed all
-
Checkin g and fillin g 185
WARNINGS c:::> .& in Working in the engine
compartment on page 178.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the win­
ter is extreme ly cold . If necessary, in­
crease the proportion of coo lant add itive
to 60% .
- Whe n adding coolant additive to your
cooling system, remember :
- We recommend using only coo lant ad­
ditive G12++ (check the labe l) for your
vehicle . This coolant additive is avai la­
ble at authorized Audi dealers. Other
types of ant ifreeze can significantly re­
duce corrosion protection . The result­
ing corrosion can cause a loss of cool ­
ant and ser ious eng ine damage.
- Do not add any type of rad iator leak seal ­
ant to yo ur vehicle's engine coolant .
Add ing radiator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could resu lt in
damage not covered by your New Vehicle
Limited Warranty .
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance.
Fig. 141 E ng ine compart men t: coo lant ex pansion t ank Ill>

186 Checking and filling
Before you check anything in the engine com­
partment,
alwa ys r ea d and heed all WARN­
INGS ¢ A in Working in the engine
comportment on page 178.
• Switch the ignition off .
• Read the coo lant level at the coolant expan­
s ion tank ¢
fig. 141 . With a co ld engine, it
must be above the "min" mark. W ith a hot
engine, it can be a little above the indicated
range.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration .
To obtain an accurate reading , the engine
must be switched
off.
The expansion tank in you r vehicle is equipped
with an e lectric coolant level sensor .
When the coolant level is too low, the warning light in the Auto- Check System ¢
page 31 will
blink until you add coo lant and the level has
been restored to no rma l. Even though there is
an electric coolant level sen sor, we still rec­
ommend you check the coolant leve l from
time to time.
Coolant loss
Coolant loss may indicate a leak in the cooling
system . In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized A udi dealer. It is not
enough merely to add coolant .
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
@ Note
Do not add any type of ra diator leak seal­
ant to yo ur vehicle's eng ine coolant. Add ­
ing radiator repair f luid may adversely af­
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the engine com­
partment,
always read and heed all WARN­
INGS ¢ A in Working in the engine comport­
ment on page 178 .
•Turnoff the engine.
• Let the eng ine cool down.
• Place a thick rag ove r the coolant expansion
tank
¢ page 185, fig . 141 and carefully
tw ist the cap counter-clockwise ¢&_ .
• Add coolant.
• Twis t the cap o n aga in
tightly.
Replacement engine coolant must conform to
exact spec ificat ions
¢ page 185, Coolant.
E ven in a n emerge ncy, if coo lant addi -
t ive G1 2++, G12+ or G12 is not ava ilable , do
not use a d ifferen t addit ive. Use plain water
instead unti l you can get the cor rect additive
and can restore the correct ratio . This sho uld
be done as soon as possible .
If you have los t a considerab le amo unt o f
coolant , then you sho uld add cold ant ifreeze
and co ld wate r on ly w hen the engine is cold.
Always use
new engine coo la nt whe n refilling .
Do not fill coola nt above the "MAX" mark. Ex­
cess coo la nt wi ll be fo rced o ut through the
pressure relief valve in t he cap w hen the en­
gine becomes hot.
,&. WARNING ~ -
- T he cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by followi ng
these steps.
- T urn
off the engine and allow it to coo l
down.
- Protect you r face, hands and a rms from
esca ping fluid and steam by covering
the cap w ith a large, t hick rag.
- T urn the cap slowly a nd ve ry carefully
in a counter-clo ckwise direction while
applying light, downward pres sure on
the top o f the cap.

-To avoid being burned, do not sp ill an­
tifreeze or coolant on the exhaust sys­ tem or hot engine parts. Under certa in
conditions, the ethylene glyco l in en­
g ine coolant can catc h fire.
- Antifreeze is poisonous. Always store an­
t ifreeze in its or iginal co ntaine r and well
o ut of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
tainer clearly ma rked "poison".
(D Note
- Coolant pollutes the env ironment and
could cause a n engine fire. Excess cool­
ant wi ll be forced out through the pres­
su re re lief va lve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the cor rect ratio be tw een wate r
and antifreeze
¢page 185 must be re­
store d as soon as possib le.
@ For the sake of the environment
Drained coolant s hould no t be reused. Al­
ways dispose of use d coolan t w hile obse rv ­
ing all envir onmental reg ulations.
Radiator fan
The radiator fan switches on automatically by
i tself
The electric radiator fan is contro lled by ther­
moswitches that switch on and off depend ing
on coolant and eng ine compa rtment tempera­
tures.
An aux iliary electr ic radiator fa n* switches on
and off depen ding on coolant t emperature
and other ve hicl e operation conditions.
After you switch t he engine off, the a uxiliary
fan ca n cont inue runn ing fo r up to 10 minutes
- even with the ignition off .
It can even sw itch
on agai n later by i tself
c::> &., , if
- the temperature of the eng ine coolant rises
due to the heat bui ld-up from the eng ine in
t h e engine compartment, o r
Checking and fillin g 187
- the engine compartment heats up because
the vehicle is parke d in intense sunlight.
A WARNING
-To reduce the risk of persona l in ju ry nev­
er touch the radiator fan .
- The a uxiliary electric fan is tempe rat ure
contro lled and can switch on suddenly
even when the engine is not running.
- The a uxiliary radiator fan sw itches on a u­
tomatically when the engine coo lant
reaches a certa in temperature and w ill
continu e to run until the coo lant temper­
ature drops.
Brake fluid
Checking brake fluid level
T he brake fluid level can be checked wi th a
qui ck gl ance.
Fi g. 142 Engin e compart ment : brake flu id reservoir
Before you check anyth ing in the eng ine com­
partment,
alw ays read and heed all WARN­
INGS c::> A in Working in the engine compart­
ment on page 178 .
.,. Read the brake fluid level from the brake
fluid reservoir
c::> fig. 142. The brake fluid
level must be between the "MIN" and
"MAX" markings.
The brake fluid reservoir is located behind the
rear partition of the engine compartment on
the left side
c::> page 180.
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm.
IJ1'-

-Always make sure the transm ission se­
lector lever is in "P" (Park position) and
the hand brake is firmly applied.
@ For the sake of the environment
- Changing the engine settings wi ll ad­
versely affect emission levels . This is det­
rimental to the environment and increas­
es fue l consumption .
- Always observe environmental regula­
tions when d ispos ing of old engine oil,
used brake fluid , dirty engine coolant,
spent batter ies or wo rn out t ires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo­
r ate Material -spec ial handling may ap ­
ply, see www.dtsc.ca .gov/hazardous­
was te/perch lorate. When the veh icle or
parts of the restrai nt system in cl ud ing
airb ag mod ules safety be lts wit h preten ­
s ione rs are scrapped, all app licable laws
and regulations must be observed. Your
a uthorized Audi dea ler is familiar w ith
these requirements and we recommend
th at you have your dea ler perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authori zed Audi dealer be­
fore purchasing accessories .
Your vehicle inco rporates the latest safety de­
sign featu res ensu ring a high standard of ac­
tive and passive safe ty .
T his safety could be comp romised by non -ap ­
p roved cha nges to the ve hicle . For this reason,
if pa rts have to be replaced , p lease observe
the following points when ins tall ing addition­
a l accessories:
App roved Audi accessor ies and genuine Audi
pa rts a re ava ilable from a uth orized Audi dea l­
e rs.
Con sumer In formation 243
T hese dea le rs a lso have the necessary facili ­
ties, tools a nd trained specialists to install the
parts and accessories properly .
_& WARNING
Using the wrong spare parts or using non­
approved accessories can cause damage to
the vehicle and ser ious persona l in jury .
- Use on ly accessories express ly approved
by Audi and ge nuine Audi spare parts
- These parts and accessories have been
specially designed to be used on yo ur ve­
hicle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on air­
bag covers or w ithi n the airbag deploy ­
ment zo nes. Do ing so wi ll increas e the
ris k of injury if a irbags are triggered in an
accide nt!
- Before you check anything in the engine
compa rtment, always read an d heed a ll
W ARNIN GS
<:!)page 172.
(D Note
-If items o ther than ge nuine Audi spare
parts, add-on equipment and accessory
items are used o r if repair wo rk is no t
perf ormed ac cor ding to spe cifie d meth­
ods, this ca n resu lt in seve re dam age to
your vehicle's engine and bo dy (such as
co rrosion) an d adve rsely affect yo ur vehi­
cle 's warranty .
- The i nnovat ive aluminium concept of
your Audi TT means t hat all servicing, re­
pairs or other work on the vehicle body
must be carr ied out exclusive ly by an Au­
di workshop .
- If emergency repairs must be performed
elsewhere, have the veh icle examined by
an authorized Audi dealership as soon as
possible .
- The manufacturer cannot be held liable
for damage wh ich occu rs due t o failure
to comply with these stipu lations .
-
•
•