2011 AUDI TT ROADSTER engine coolant

18 0 Che cking and filling
Engine compartment
These are the most important items that you can check .
•
Fig. 137 Typ ica l layout fo r containers and eng ine oil filler cap
(D Coolant expansion tank (-L) 185
@ Eng ine o il dipstick (o range) 183
@ Engine oi l filler cap ('1:::r.) . . . . . 183
@ Brake fluid reservoir((();) . . . . . 187
® Jump start points(+) under a
cover,(-) bolt head . . . . . . . . . . 232
® Windshield/headlight washer
t . (
;;p, ) con ainer ,-!,, •••.•••. •.• •• . 192
The position of the engine o il dipstick and the
engine o il filling hole
r::> fig . 137 (items @and
@) can differ depending on the engine de­
sign .
A WARNING
Before you check anything in the engine
compartment, always read and heed all
WARN INGS
c::> .& in Working in the engine
compartment on page 178.
Engine oil
Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil.
T he eng ine in your Aud i is a soph ist icated
powerplant that was built to exact ing spec ifi­
cat ions . T his engine needs the right kind of
engine oil that meets specifications regarding
quality and viscosity so that it can run
smooth ly and reliab ly . Choosing the right o il
and changing oil within the time and mileage
intervals printed in your vehicle's Warranty
&
Maintenance booklet matters a lot more to­
day than it did years ago . Audi has developed
a spec ia l quality standard for engine oil that
will help assure that you r vehicle's engine w ill
get the lubr ication i t needs fo r proper opera­
t io n.
Modern engine lubr ication has taken a quan­
tum leap in the last few years. Many synthet ic
1J.

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'-

~ Press the cap back onto the filler neck after
filling the container .
You can find the reservoir
c ap acit y in the tab le
in
c::> page 239.
C lean water should be used when filling up. If
possible, use soft wate r to prevent scal ing on
the w asher jets. Always add a glass cleaner
solution (with frost protection in the winter) .
(D Note
Do not mix engine coolant antifreeze or
any other add itives to fi ll up the wind­
shie ld washer reservoir.
Checkin g and fillin g 193
•
•

-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 .
-
•
•

A
A/C operation
ABS ................... .... 78
refer to Anti-lock brake system .. .. .. . 153
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 243
Acoustic park assist . . . . . . . . . . . . . . . . . . 83
Adaptive light ................ .... ... 54
defective . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Adding Engine coolant ........... .. .. .. .. .
Engine oil ...... .... ... .. .. .. .. .. .
Windshield washer fluid ....... . ... .
Additional accessories
Additives Engine oil .. ............. .. .. .. .. .
Adjustable steering column ...... ... .. . 186
183
192
243
183 80
Adjusting front seats ............ ..... 66
Adjusting steering column ... .. .. .. .. .. 80
Adjusting the seats ......... .. .. .. .. .. 67
Advanced Airbag System Children ... ................ ... ... 137
Components ................ ... .. .
Front airbags ............ .... .. .. .
How the components work together . . 121
120
123
Monitoring . . . . . . . . . . . . . . . . . . . . . . . 125
Weight -sensing mat ......... .... .. 137
Airbag Warning/indicator lights ..... .. .. .. .. 16
Airbag system . . . . . . . . . . . . . . . . . 115, 134
Care ....... .. ............... .. .. . 128
Child restraints .............. ... ... 138
Components (front airbags) . ... .. .. . 121
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 116
Disposal 128
Front airbags .... .. ...... .. .. .. .. . 119
How do the front airbags work? . ..... 124
How many airbags does my vehicle
have? . .. .. .... ............. .. .. . 121
I mportant safety instructions on the
knee airbag system .......... ... .. . 132
Important things to know ... ... .. .. . 115
Indicator light .............. ... ... 125
Knee airbags . . . . . . . . . . . . . . . . . . . . . . 130
Monitoring . ............. .... .. ... 125
PASSENGER AIR BAG OFF light .. .. .. . 126
Repairs . ... ... .. .. ...... .. .. .. .. . 128
Index 245
Side airbags ..... ................. 132
When must the system be inspected? . 125
All-wheel drive .. .. ................. 154
Winter tires ... .. .... ........... . .
Alloy wheels .. .. .. .. . ... ...... ... . .
Alternator
refer to Generator . . .............. ..
Anti-freeze 209
167
16
refer to Engine cooling system ... .. .. 185
Anti -glare inside day-night mirror ....... 58
Anti-lock brake system How the ABS system works ......... . 153
Warning/indicator lights ........ .. .. . 17
Anti-Sl ip Regulation System (ASR)
How the system works .............. 150
Anti-theft systems Anti-theft alarm system ........ .. .. . 42
Electronic immobilizer .......... .. .. . 36
Ashtray
ASR
.... .. .. .. ... ............ ...
How the Anti-Slip Regulation System 71
works .... .. .. .. ................. 150
Asterisk What does it mean when something is marked with an asterisk? .............. 6
Audi magnetic ride . . . . . . . . . . . . . . . 14, 86
Description .. .. .. ... ............ .. . 86
Ind icator light . .... ... .......... .. . 14
Audi Service Repair Manuals and Litera-
ture .......... ... .. .. ... ......... .
Automatic belt retractor ............ .
Automat ic car wash
refer to Washing . .... ........... . .
Automatic convertible top 241
110
163
closing . .. .. .. .. .. . .. .... ........ . 48
opening ........ .. ............... .
Automatic transmission ............ .. .
Driving Notes .. .. ................. . 48
87
89
Emergency program .. .. ...... ...... 92
Emergency release . . . . . . . . . . . . . . . . . . 92
Ignition key safety lock .............. 81
Kick-down ... .. .. ... ............ ... 91
Launch Control Program .......... .. . 91
Selector lever lock . . . . . . . . . . . . . . . . . . 88
Selector lever positions . . . . . . . . . . . . . . 87
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Tiptronic controls on the steering wheel 91
•
•

246 Index
Auto Safety Hotline ............ .... . 105
Average fuel mileage ........... .. .... 20
Average speed . . . . . . . . . . . . . . . . . . . . . . . 20
Avoid damaging the vehicle ...... .... . 158
B
Battery . . . . . . . . . . . . . . . . . . . . . . 188, 191
Charging . .. ............. .. .. .. .. . 192
Check ing battery acid level ..... .... . 191
Connecting ............... ... .... . 188
Disconnecting ............... .... . 188
Important warnings when working on
the battery .................. .... .
190
Low . .. .. .. ............. .. .. .. ... 155
Replacing the battery .............. 189
State of charge . . . . . . . . . . . . . . . . . . . . 155
W inter operation ............... ... 188
Working on the battery ............. 190
Battery voltage ................ .... .. 33
Before driving .............. ... .... . .
Blended gasoline ..... ..... .. .. .. .. .
Body cavity sealing
Booster seats
Brake fluid 98
174
168
143
Changing the brake fluid ....... .. ... 188
Checking the brake fluid level .... .... 187
What is the correct brake flu id level? .. 187
What should I do if the brake fluid warn-
ing light comes on? ................
187
Brake fluid reservoir ......... ... .. .. . 187
Brake system ............... ... .... . 187
Anti-lock brake system ............. . 17
Brake Assistant .......... .. .. .... . 153
Brake fluid .................. ..... 187
Brake fluid spec ificat ions for refill and re-
placement .... .. ... ..... .. .. .. .. .
188
Brake light defective ................ 33
Brake pads .............. .... .... . 157
General information ............... 151
How does the moisture or road sa lt affect
the brakes? ............... ... .... .
151
Malfunction .............. ... .... . . 30
Warning/indicator lights ..... .. .. .. . . 16
Worn brake pads symbol ... .. .. .... .. 32
Break-in period .............. .. .... . 157
Brake pads ............... ... .... . 157
Tires .... .. ................ ..... . 157
Bulbs ..... ..... .. ............. .... 230
C
Cal iforn ia Proposition 65 Warn ing . ... .
Battery specific . ................. .
Capacities .. .. .. .. .. ...... ..... .. . . 179
191
239
Car care ... ..... .. ............. .... 162
Interior ..... .. .. ................. 168
Plastic and vinyl ................... 166
Weatherstrips 167
Care of exterior .... ................ . 162
Cargo area
refer to Luggage compartment ....... 103
Catalytic converter .................. 158
CD changer ..... .. .................. 73
Certification . . . . . . . . . . . . . . . . . . . . . . . 244
Changing a flat tire .................. 222
Changing engine oil ............... .. 184
Chassis
Undercoating .. .. ... .... ...... .. ..
168
also refer to Audi magnetic r ide .. .. .. . 86
Checking
Battery acid level .................. 191
Engine coolant level ................ 185
Checking tire pressure .............. . 200
Child restraint
Danger of using child restraints in the
front seat . ................... ....
116
Child restraints
Where can I get additional information
about child restraints and the ir use? ..
147
Child safety . ....................... 136
Convertible locking retractor ......... 144
Important safety instructions for using
ch ild safety seats .... .... ...... .. ..
139
Important things to know when driving
with children .....................
136
Child safety seat .................... 141
Convertible locking retractor . .. ..... . 144
Installing ... .. .. ....... ...... .. .. 144
Child safety seats
Booster seats . . . . . . . . . . . . . . . . . . . . .
143
Convertible child seats ............. 142
How do I properly install a child safety
· h' l ? 139 seat in my ve 1c e ...... ........... .