engine coolant AUDI TT ROADSTER 2014 User Guide

Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig. 134 Eng ine compartme nt: cover o n the coolant
expansion tank
Before you check anything in the engine com­
partment,
a lway s read and he ed all WARN ­
INGS ¢ A in Working in the engine compart­
ment on page 165.
.,. Park your vehicle on a level surface.
.,. Switch the ignition
off .
.,. Read the coola nt level at the coolant expan­
s ion tank
¢ page 167, fig . 130. With a cold
engine, it must be above the "min" mark.
With a hot engine, it can be a l ittle above
the indica ted range.
The location of the coolant expans ion tank
can be seen in the engine compar tment illus­
tration
¢page 167.
To obtain an accurate read ing, the eng ine
must be switched
off.
The expans ion tank in your vehicle is equipped
with a n electric coolant level sensor.
When the coo lant level is too low, the warning
light in the Auto-Check System¢
page 17 will
illum inate until you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor, we
still recommend you check the coolant leve l
from time to time.
Coolant loss
Coolant loss may indicate a leak in the cool ing
system. In the event of coolant loss, the cool­
i ng system should be inspected immediately
Checkin g and fillin g 173
by your authorized Audi dea ler . It is not
enough merely to add coo lant .
In a
s ealed system, losses can o ccu r on ly if
the boiling point o f the coo lant is exceeded as
a res ult of overheating.
(D Note
Do not ad d any type of radiator leak sea l­
ant to your veh icle's engine coo lant. Add­
ing radiator repa ir flui d may adverse ly af ­
fect the function and performance of yo ur
cooling system and could result in damage
not covered by your New Vehicle Limited
War ranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anyth ing in the engine com ­
partment,
alway s read and heed alt WARN­
INGS ¢ A in Working in the engine compart­
ment on page 165.
... Tu rn off the engine .
.,. Let the engine cool down.
.,. Place a thick rag ove r the coolant expansion
tank ¢
page 173, fig. 134 and carefully
twist the cap counter-clockwise ¢_& .
.,. Add coo lant m ixed in the correct rat io
¢ page 172, Coolant .
.,. Twist the cap on aga in tightly.
Rep lacement engine coo lant must conform to
exact specificat ions¢
page 172, Coolant.
We recommend using only coolant add itive
Gl2 ++, Gl3 or in an emergency Gl2+. Do not
use a different additive. In an emergency use
plain water until you can get the correct addi­
tive and can resto re the correct ratio . Th is
shou ld be done as soon as possib le.
If you have lost a cons iderab le amount of
coolant, then you should add cold ant ifreeze
and co ld wate r on ly when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Ex-
cess coolant will be fo rced o ut through the ..,_
•
•

17 4 Che cking and filling
pressure relie f valve in the cap when the
engine becomes hot .
.&_ WARNING
-The coo ling system is under pressure and
can get
very hot. Reduce the risk of
sca lding from hot coolant by following
these steps .
- Turn off the eng ine and a llow it to cool
down.
- Protec t your face, hands and arms from
escap ing fl uid and steam by cover ing
the cap with a large, thick rag.
- Tu rn the cap slowly and
very ca refully
in a counter -clockwise direct ion while
applying light, downward p ress ure on
the top of the cap.
- To avo id being burned, do not sp ill an­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts. Under certain
conditions, the ethylene glyco l in en­
g ine coolant can catch fire.
- Antifreeze is poisonous. Always store an ­
t ifreeze in its or iginal container and we ll
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
ta iner clearly marked "poison".
(D Note
- Coolant po llutes the environment and
could cause an engine fire. Excess cool­
ant will be forced out through the pres­
sure re lief
valve in the cap when the en­
gine becomes hot .
- If, in an emergency, only water can be
added, the correct ratio between wate r
and antifreeze~
page 172 must be re­
stored as soon as possib le.
@) For the sake of the environment
Dra ined coolant should not be reused. Al­
ways dispose of used coolant while obse rv­
ing all environmental regulations .
Radiator fan
The radiator fan switches on automatically by
itself .
The electric radiator fan is controlled by ther­
moswitches that switch on and off depending
on coolant and eng ine compartment tempera­
tures.
An a uxiliary electric radiator fan* sw itches on
and off depending on coolant temperature
and other vehicle operat ion conditions .
After you switch the engine off, the aux iliary
fan can continue running for up to 10 minutes
-even w ith the ignition off. It can even switc h
on aga in later by itself
c> &. , if
- the temperature of the engine coo lant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
.&_ WARNING
-
- To reduce the risk of personal inju ry nev-
er touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can sw itch on suddenly
even when the engine is not ru nning.
- The auxiliary radiator fan sw itches on au­
tomatically when the engine coo lant
reac hes a certain t emperature and w ill
continue to run until the coolant temper­
a ture drop s.
Brake fluid
' Checking brake fluid level
N
N
N
" ~
Fi g. 13S Engine compartment: cover on th e brake fluid
reservoir

180 Checking and filling
Windshield/headlight
washer container
M N
Fi g. 137 Fender , left : cover on t he w inds hield a nd
headl ig ht* was her fl uid reservoir
The washer flu id container is marked wi th the
symbol
Q on its cap <=>page 16 7, fig . 130 .
.. Before you check anyth ing in the engine
compartment,
alw ays re ad an d heed all
W ARNING S r=> A in Working in the engine
compartment on page 165 .
.,. Lift the filler cap tongue to add washer flu­
id . You can fill the container to the top .
.,. Press the cap back onto the fi ller neck after
filling the containe r.
You can find the reservoir
ca pacity in the table
i n
r=> page 224 .
Clean water should be used when filling up . If
possible, use soft water to prevent scal ing on
the washer jets . Always add a glass cleaner
solutio n (with frost p rotection in the winter) .
(D Note
-Do not mix engine coolant antifreeze or
any other addi tives to fill up the wind­
shield washer rese rvoi r.
- Do not use glass cleaners contain ing
paint solvent; you r isk damaging the
paint.

228 Con sum er Inf ormation
-Always make sure the transmission 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 em iss ion levels . This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe environmental regula­
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo­
rate Material -spec ial handling may ap ­
ply, see www .dtsc.ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restrai nt system in cl uding
airbag modules safety bel ts with preten­
s ioners are scrapped, all applicable laws
and regulations must be observed. Your
a uthorized Aud i dea ler is familiar w ith
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories .
Your vehicle incorporates the latest safety de­
sign features ensuring a high standard of
ac­
tive and passive safety .
T his safety could be compromised by non -ap­
proved changes to the veh icle. For this reason ,
if parts have to be replaced , please observe
the following points when installing addition­
a l accessories:
Approved Audi accessor ies and genuine Audi
parts are ava ilable from a uthorized Aud i dea l­
e rs. These dea
lers a lso have the necessary facili­
ties, tools and trained specialists to install the
parts and accessories proper ly .
A WARNING
=
Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious perso na l injury .
- Use on ly accessories express ly approved
by Audi and genuine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on your ve­
h icle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy ­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNINGS
i=;, page 165 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used o r if repair wo rk is not
performed accord ing to specified meth­
ods, this can resu lt in seve re damage to
your vehicle's engine and body (such as
corrosion) and adversely affect yo ur vehi­
cle's warranty.
- The innovat ive a luminium concept of
your Audi TT means that all servicing, re­ pairs or other work on the vehicle body
must be carr ied out exclusive ly by an
Audi workshop.
- If emergency repairs must be performed
elsewhere, have the veh icle examined by
an authorized Audi dealership as soon as
poss ible .
- The manufac turer cannot be held liable
for damage wh ich occurs due to failure
to comply with these stipulations .

230 Index
A
A/C operation . . . . . . . . . . . . . . . . . . . . . . . 71
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 228
Acoustic park assist ........ .. .. .. .. . . 80
Adaptive light . . . . . . . . . . . . . . . . . . . 21, 49
Adding Eng ine coolant .............. ... .. .
Engine oil .. ..... ........... ... .. .
Windshield washer fluid ... .. .. .... .
Additional accessories
Addit ives
Engine oil . ...... ......... ... .... .
Adjustab le steer ing column ...... .. ... .
Adjusting front seats ....... .. .. .. .. . . 173
170
180
228
170 73
60
Adj usting steering column ... .... .... .. 73
Adjusting the seats ............... ... . 61
Advanced Airbag System Children 131
Components ............. .. .. .... . 115
Front airbags . ............. .. .... . 113
H ow the components work together . . 117
Monitoring .... ... ... .... .. .. .. .. . 119
Weight -se nsing mat ...... .. .. .. .. . 131
Airbag system . . . . . . . . . . . . . . . . . 109, 128
Care . .. .. .. ............... .. .... . 122
Ch ild restra ints .............. ... .. . 132
Components (front airbags) .. .. .. .. . 115
Danger of fitting a child safety seat on
the front passenger seat . . . . . . . . . . . . 110
Disposal ................ .. .. .... . 122
Fr ont airbags ..................... 113
How do the front airbags work? .. ... . 118
How many airbags does my vehicle
have? ... .. ............. .. .. .. ... 115
Important safety instructions on the knee airbag system ..... .. .. .. .. .. . 126
Important things to know ...... .. .. . 109
Indicator l ight .... ... .... .. .. .. .. . 119
Knee airbags ............. .. .. .. .. . 124
Monitoring ... ............. .. .... . 119
PASSENGER AIR BAG OFF light .. ..... 120
Repairs .... ................ ..... . 122
Side airbags . . . . . . . . . . . . . . . . . . . . . . 126
Warning/indicator lights ............. 15
When must the system be inspected? 119
A lcantara
C leaning ... .. .............. ..... . 158 All-wheel drive
.... ............. .... 147
Winter tires ..... ................ . 196
Alternator .. .... .. ............. .... . 16
Anti-free ze
refer to Eng ine cooling system . .. .. .. 172
Anti -lock brake system . . . . . . . . . . . . . . . 142
Warning/indicator lights ............. 18
Anti-s lip regulation ............. .... 142
Anti-theft systems Anti -theft alarm system ............. 38
Electronic immobilizer .......... .. .. . 33
Ashtray ... ..... .. .. .............. .. 64
Asterisk What does it mean when something is
marked with an asterisk? . . . . . . . . . . . . . . 6
Audi magnet ic r ide . . . . . . . . . . . . . . . 21, 80
Description . . . . . . . . . . . . . . . . . . . . . . . . 80
Indicator light . .. .. ........... .. .. . 21
Audi Service Repair Manuals and Li tera-
ture 226
Automatic be lt retractor ............ . 104
Automat ic convert ible top
closing
. .. .. .. .. ............. .. .. . 43
opening .. .. .. .. ................ .. 43
Automat ic transmission . . . . . . . . . . . . . . . 82
Driving Notes . . . . . . . . . . . . . . . . . . . . . . 84
Emergency program ........... .. .. . 87
Emergency release ............. .. .. . 87
Ignit ion key safety lock ........... .. . 74
Kick-down ..... .. ................ .. 86
Launch Control Program ............. 86
Se lector lever lock . . . . . . . . . . . . . . . . . . 83
Se lector lever positions ......... .. .. . 82
Tiptronic .. .... .. ............. .... . 85
T iptronic controls on the steering wheel 86
Auto Safety Hotline ................ .. 99
Average fuel mileage ............ .... . 23
Average speed . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damaging the vehicle ........ ... 151
B
Battery ...................... 175,178
Charg ing .. .... .. ............. .... 179
Checking battery acid level .......... 178
Connecting . ..... ................ . 175
Disconnecting 175

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
•
•

234 Index
F
Fan ... . ... ... .. .. ..... ... .. .. .... .. 69
Radiator ... .. . .. ..... ... .. .. .... . 174
Fasten ing
B ooste r seats ............ .... .. .. .
137
Conve rtible c hild safety se ats . .. .. .. . 135
Infant sea ts
F lat t i re 13 5
Changing .. ... ......... ... .. .. ... 209
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . 5 0
Fo ld ing master key w ith remote contro l .. 32
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . 97
For the sake of the environmen t
G asoline fumes and the environmen t ..
163
Le tting you r engine warm up ... .. .. . . 74
Refue ling . . . . . . . . . . . . . . . . . . . . . . . . 163
Saving fue l by early upshifting . ..... . . 10
Fr ont airbags
D escr ipt ion . . . . . . . . . . . . . . . . . . . . . . .
113
H owtheywork ...... .......... .... 118
Fronta l collisions and the laws of physics 102
F ront seats . . . . . . . . . . . . . . . . . . . . . . . . . 60
Ad justing ....................... ..
94
Ad just ing the manual seats . .... .... .. 61
C hi ld restra ints in the front seat ... .. . 110
Fu el
Additives ... ... . ...... ... .. .. .... .
161
Blended gasoline ........... .. .... . 161
Current fuel mileage . . . . . . . . . . . . . . . . 23
Fill er neck .. .. .. ...... .... ... .. .. . 162
Fue l gauge . ... ......... ... .. .. ... . 12
Fuel supp ly too low . . . . . . . . . . . . . . . . . 20
Gasoline ... ... .......... .. .. .. .. . 16 1
Gasoline additives ........ .... .... . 162
Octane rating . ........... .. .. .. .. . 16 1
Recommendation .... ... .. .. .. .... . 161
Refue lling . .. .. .. ..... ... .. .. .... . 163
Reserve . ... ... . ...... ... .. .. .... .. 1 2
Tank capacity .............. .. .... . 224
Unlock ing the fue l filler flap by hand .. 164
Fu el economy messages (efficiency pro-
gram) ... .... ... . ...... ... .. .. .... ..
27
Fuse ar rangement ....... .. .. .. .. .. . 2 14
G
Garage doo r opener ( Homelink) .... . .. . 89
Gas discha rge lamps ..... .. ... ..... ..
2 16
Ga uges
Engine coolant temperature . . . . . . . . . .
11
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 10
General illustration
Instruments and controls .. ... .. .. .. .. 8
Generator (warning/ indicator l igh ts) . .. .
16
G lossary of tire and loading terminology 182
G love compartment . . . . . . . . . . . . . . . . . . 66
G ross Vehicle We ight Rating (GVWR) ... 223
H
Head lights ..... .. .......... ... ... .. 48
adaptive light . . . . . . . . . . . . . . . . . . . . . . 49
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 156
defective . . . . . . . . . . . . . . . . . . . . . . 20, 2 1
Fron t fog lights . . . . . . . . . . . . . . . . . . . . 50
Switching off .... ... .. ..... ... .. .. . 4 8
Switching on ..... .. ... ..... ... .. .. . 48
Washe r system . . . . . . . . . . . . . . . . . . . . . SS
Xenon headlights .............. .. .. . 48
He ad restr aints .. .. ............. .. ... 95
Adjusting ..... .. .. .... .... ... .. .. . 95
Heated
exter io r mir ro rs . . . . . . . . . . . . . . . . . . . .
52
fron t seats (cl ima te control) ..... .. .. . 72
rear window ...................... . 71
Heated seats . . . . . . . . . . . . . . . . . . . . . . . . 72
Heate d washer jets
Wiper and washer system .. ... .. .. .. .
54
H eating .. .. ...... ............. ..... 68
Hig h beam . . . . . . . . . . . . . . . . . . . . . . 48, 50
High voltage warning label .. ... .. .. .. 223
Hill Descent Assist . ... .. ......... ... . 85
Hill ho ld assist
Starting on hills ............... .....
76
Homel in k unive rsal remote control . ... . 89
Hood Open ing .. .. .. .. .................
165
Re le a se lever . . . . . . . . . . . . . . . . . . . . . 165
Hor n .... .. .. .. .. ............... .. .. 8
How many ai rba gs does my vehicle have?
115