2014 AUDI TT ROADSTER coolant

Checking and fillin g 167
Eng ine compartment
These are the most important items that you can check .
•
Fig. 130 Typ ical layout for containers and eng ine oil filler cap
(D Coolant expansion tank (-L) . . . 173
@ Eng ine oi l dipstick . . . . . . . . . . . 170
@ Engine oil filler cap ( © Brakefluidreservo ir(O)) . . .. . 174
® Jump start points(+) under a
cover,(-) bolt head . . . . . . . . . . 218
® Windshield/headlight washer
t . (ffi) con amer *
...... ....... . 180
The position of the engine o il dipstick and the
engine oil filling hole
i::> fig. 130 (items @and
@) can differ depending on the engine de­
sign.
_&. WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARN INGS
i::> &. in Working in the engine
compartment on page 165.
Engine oil
Engine oil specifications
The engine in your Audi needs the right kind
of oil.
The eng ine in your Aud i is a sophist icated
powerplant that was built to exacti ng spec ifi­
cations . T his eng ine needs t he right k ind of
engine oil that meets specifications regarding
quality and viscosity so that it can run
smoot hly and reliably . 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 specia l quality standard for engine oil t hat
will help assu re that you r vehicle's engine w ill
get the l ubr ication i t needs fo r proper opera­
tion.
Modern engine lubr ication has taken a q uan­
tum leap in the last few years. Many synt het ic
IJI,,

172 Checking and filling
@ For the sake of the environment
- Before changing your oil , first make sure
you know where you can properly dispose
of the used o il.
- Always dispose of used engine oil proper­
l y. Do not dump it on garden soi l, wood­
ed areas, into open streams or down
sewage dra ins.
- Recycle used engine oil by taking it to a
used engine o il collection facility in your
area, or contact a service station .
Engine cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
The cooling system is sea led and generally re­
q uir es little attention .
The cooling system has been filled at the fac ­
tory with a pe rmanent coolant which does not
need to be c hanged. The coolant consists of a
mixture of spec ia lly condi tioned water and the
manuf acturer 's glyco l-b asedcoolan t addi -
tive G l3 antifreeze with ant icorros ion addi ­
tives (50% for USA models ; 60% for Canadian
mod els). This mixture both assures the nec es­
sary frost protection and p rotects metal com ­
ponents in the engine's cooling system from
corrosion and scaling . It a lso raises the boil­
ing point of the coo lant .
Do not red uce the concentration o f the coo l­
ant in the summer by adding plain water.
The
proportion of coolant add itive must be at
l e a st 50 % but not more than 60 %
to main­
tain antifreez e protection and cooling efficien­
cy . If the coolant frost prote ct ion is too low,
the coo lant cou ld free ze and damage the veh i­
cle hea ting and eng ine cooling system.
For yea r-round d riving, antifreeze is added at
the fac to ry for temperatures down to:
-- 31°F( -35°C)USA
- -40 °F ( -40 °C) Canada. If
you must add coolant, use a mixture o f wa ­
ter and coolant additive . Mixing the coo lant
additive with distilled water is recommended.
A WARNING
-
Before you c heck anything in the engine
compartment, always read and heed a ll
WAR NINGS
c::, & in Working in the engine
compartment on page 165.
(D Note
- Before winter sets in, have the coo lant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­ m ate conditions . This is especia lly impor­
tan t if you live in a reg io n wher e the win ­
t er is ex treme ly col d. If ne cessa ry, i n­
crease the proportion of coo lant add itive
t o 60%.
- Whe n adding coolant additive to yo ur
c oolin g sys tem, remembe r:
- We recommend using on ly coolant ad ­
d itive Gl2++ or Gl3 for your vehicle .
This coolant additive is avai lab le at au­
thor ized Audi dealers . Other types of
ant ifre eze can s ignificant ly reduce cor ­
rosion prote ctio n. T he resulti ng cor ro­
sion can ca use a lo ss o f coolan t and se­
rio us en gine d amage.
- Do not add any ty pe of rad iator leak seal­
a n t t o y our vehicle 's engine coolant.
Add ing radiator rep air fl uid may adverse ­
ly affect the function and performance of
yo ur cooling system and co uld resu lt in
damage not covered by yo ur New Vehicle
Limited Warranty.
-

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.

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. .,.

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