engine coolant AUDI TT ROADSTER 2017 Owners Manual

Instrumen ts and ind icator ligh ts
Instruments and indicator Lights
Instruments
Audi virtual cockpit (instrument cluster)
The instrument cluster is the central information center for the driver.
Fig. 3 Instrume nt cluster overv iew
(D Eng ine coolant temperature 8
@ Driver information system . . . . . . 19
® Fuel level . . . . . . . . . . . . . . . . . . . . 8
@ Trip odometer reset knob . . . . . . . 23
Coolant temperature indicator
The coolan t temperature display c:> page 8,
fig. 3
(D only functions when the ignition is
switched on. To prevent engine damage, p lease
observe the following notes about the tempera­
ture ranges.
Cold rang e
If o nly the L EDs in the left area of the gauge turn
on, the engine has not reached operating tem­
perature yet. Avoid high engine speeds, full ac­
celerating and heavy engine loads .
Normal range
The engine has reached its operating tempera­
ture once the LEDs up to the center of the gauge
turn on . If the . indicator light in the Infotain­
ment system display turns on, the coolant tem­
perature is too high
c:> page 12.
8
(D Note
-Aux iliary head lights and other accessories in
front of the coo ling-a ir intake impa ir the
cooling effect o f the coolant. This increases
the risk of the engine overheating during high outside temperatures and heavy en ­
gine load.
- T he front spoiler a lso helps to distribute
cooling air correctly while driving . If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the eng ine over­
heating w ill increase. See an authorized
Audi dealer or author ized Audi Service Fa­
cility for assistance .
Fuel level
The indicator @ only func tions when the ignition
i s sw itched on. If the fuel level drops below 1.9
gal (7
L), a red LED wi ll light up and the rD indi­
cator light will turn on
c:> page 16 . The LED
blinks red when the fuel level is very low.
The fuel tank capacity of your veh icle is listed in
the
Techni cal Dat a sectio n c:> page 291. ..,_

Instruments and indicator lights
There is a malfunction in the parking brake . Dr ive
to an authorized Audi dealer or authorized Audi
Serv ice Facility immediately to have the malfunc­
tion corrected .
1ij Parking brake: ma lfunction! Safely stop ve­
hicle . Ple ase contact Se rvice
There is a malfunction in the parking br ake. Dr ive
to an author ized Audi dealer or author ized A udi
Service Facility immediately to have the mal func­
tion corrected.
ltJil:Jl:)jf;U~ (USA model s) /
6] (Canada model s)
Ple ase rele ase p arking brake .
Re lease the park ing brake if this message ap­
pea rs .
IZJill :ljfj:0 (USA mod els) /
6] (C an ad a model s)
Parking brake auto rel ea se unavail able
If th is message appears, press the brake pedal
first and then release the parking brake.
IZ,i!;t:Jjf;U~U SA mod els ) /
K@) <Canada models)
Parking b rak e: c aution! Vehicle pa rked too
steep
If the indicator light blinks and the message ap­
pears, there is not enough braking power to se­
cure the vehicle. The brakes have overheated. The
veh icle could roll away even on a small incline.
ltJ ilJ :jjJ:1:0 (USA model s) /
K@j <Ca nad a model s)
Parking b rak e is appl ied
I f th is message appears, press the bra ke pedal
fi rst and then release the pa rking brake if neces­
sary .
(D Tips
For add it iona l information on the park ing
brake, see ¢
page 62.
-L Cooling system
• Turn off engine and check coolant le vel
The coolan t leve l is too low.
Do not cont inue drivi ng and switch the engine
off . Check the coolant level¢
page 241 .
12
-If the coo lant level is too low , add coolant
¢
page 241. Only continue driving once the in­
dicator light turns off.
• Coo la nt temperature : to o high . Let engine
run with veh icle stationa ry
Let the engine ru n at idle fo r a few minutes to
cool off, until t he ind icator lig ht t urns off .
- If the ind icator light does not turn off , do not
cont inue driving the veh icle. See an authorized
Audi dea le r or authorized Audi Service Facility
for assistance.
.&_ WARNING
- Never ope n the hood if you can see or hea r
steam or coo lant escaping from the engine
compartment. This increases the risk of
burns. Wait until you no longer see or hear
steam or coolant escaping.
- The engine compartment in any vehicle can
be a dangerous area. Stop the engine and
allow it to cool before working in the engine
compartment . Always follow the informa­
tion found in
Q page 235, Working in the
engine compartment .
(D Note
Do not continue driv ing if the . indicator
light turns on as this increases the risk of en­
g ine damage.
"I!::?': Engine oil pressure
• Turn off engin e. Oil pre ssure to o low
Stop the engine and do not continue driving. Check the eng ine oil level¢
page 239.
-If the eng ine oi l level is too low, add engine oil
¢
page 239 . Only continue driving once the in­
dicator light turns off.
-If the engine oi l level is correct and the indica­
tor light still blinks, turn the engine off and do
not continue dr iving . See an author iz ed Audi
dea ler or authori zed Audi Service Facility for as-
sistance . .,.

CD
CD
.... N
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Automatic climate control system controls
Fig. 61 Automatic climate control syste m: controls
You can control the functions through the dial,
buttons in the dial and the buttons. Press the
buttons to turn the functions on or off . The LED
in a button w ill light up when the funct ion is
switched on .
We recommend pressing the
IAUTOI button and
setting the temperature to 72 °F (22 °C). The au­
tomatic climate control system automatically
maintains a temperature once it has been set .
The air tempe rature coming from the vents, the
b lower speed, and the air distribution are also
automatically adjusted. In all heating mode f unc­
tions except
defrost, the b lower only switches to
a higher speed once the engine coolant has
reached a certain temperature.
~ Adjusting the blow er
The blower speed can be adjusted in small inc re­
ments using the dia l
(D. The blower should a l­
ways run at a low setting to prevent the windows
from fogging and to ensure a continuous ex­
change of air inside the vehicle. You can adjust
the volume of air generated by the blower to your
preference. To have the blower regulated auto­
mat ically, press the
IAU TOI button .
IA/Cj Switching cooling mode on and off
The cooling system is tur ned on and off w ith the
IA/C l button. The air is not cooled and humidity is
not removed when coo ling mode is sw itched off.
Warm and cold
This can cause fog on the windows. Cooling mode
switches off automatically when the outside tem­
perature is be low zero .
The temperature can be adjusted with the con­
trol @.
I• I • I Adjusting the temperature
T he tempe rature can be adjusted in small i ncre­
ments using the dial@.
IAUTO I Switching automatic mode on and off
The automatic mode is turned on using the
IAUTOI button. AUTO mode switches off once a
button in the climate con trol system is pressed.
Automat ic mode maintains a cons tant tempera­
tu re inside the vehicle . Air temperature, airf low
and air distribution are controlled automatically .
Adjusting the air distribution
The air distrib ution can be adjusted w ith the con­
t rol @ . To have the air d istr ibution regulated au ­
tomat ica lly, press the
IAUTOI butto n.
T he rou nd a ir ven ts in the cockpit a re adjustable
~page 54.
To keep the front side w indows from fogging up
in damp weather, we recommend ope ning t he
s ide a ir vents and ti lting them to the side.
53

Driving
-Never turn off the engine before the vehicle
has come to a complete stop.
- The brake booster and power steering only
work when the engine is running. If the en­
gine is
off, you have to use more force when
steering or braking. Because you cannot
steer and brake as you usually would, this
could lead to accidents and serious injuries.
(D Note
Avoid high engine speed, full throttle, and
heavy engine load if the engine has not
reached operating temperature yet. You could
damage the engine.
@ For the sake of the environment
Do not let the engine run while parked to
warm up. Begin driving immediately . This re­
duces unnecessary emissions.
{D) Tips
-Some noise after starting the engine is nor­
mal and is no cause for concern.
- If you leave the vehicle with the ignition
switched on, the ignition will switch
off af­
ter a certain amount of time . Make sure that
electrical equipment such as the exterior
lights are switched
off.
Stopping the engine
.,. Bring the vehicle to a full stop.
.,. Move the selector lever into the P position .
... Press the
I START ENGINE STOPI button
¢ page 59, fig. 67.
Emergency off function*
If it is absolutely necessary, the engine can also
be turned
off while driving at speeds starting at
4 mph (7 km/h). To switch the engine
off, press
the
! START ENGINE STOPI button twice in a row
briefly or press and hold for longer than two sec­
onds.
_&. WARNING
- Never turn off the engine before the vehicle
has come to a complete stop.
60
- Please note that the brake booster and pow­
er steering only work when the engine is
running. When the engine
off, you must use
more force to steer or brake the vehicle. Be­
cause the usual steering and braking capa­
bility is not available, the risk of accidents or
. . . . mJunes increases.
- For safety reasons, always park the vehicle
with the selector lever in the P position.
Otherwise, there is the risk that the vehicle
could roll.
- After the engine has been switched off, the
radiator fan can continue to run for up to 10
minutes -even with the ignition switched
off. It can also switch on again after some
time if the coolant temperature rises as the
result of heat buildup or if the engine is al­
ready warm and the engine compartment is
also heated by the sun's rays.
(D Note
If the engine has been under heavy load for
an extended period of time, heat builds up in
the engine compartment after th@ engine is
switched
off and there is a risk of damaging
the engine . For this reason, let the engine run
at idle for approximately two minutes before
shutting it
off.
Messages
Turn off ignition before leaving vehicle. Battery
is discharging
This message appears and a warning tone sounds
if you open the driver's door when the ignition is
switched on. Switch the ignition
off so that the
battery will not discharge.
Pressing start/stop button again will switch off
engine.
This message appears when you press the
I START ENGIN E STOP ! button while driving.
Engine start system: malfunction! Please con­
tact Service
The engine automatic start system has a mal­
function. Drive to an authorized Audi dealer or
autho rized Audi Service Facility immediately to
IJlo-

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Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
F or wo rk in th e en gine c ompar tment su ch as
ch eckin g and fi llin g flu id s, th ere is a risk of in­
j u ry , sca lding , acci dent s, a nd b urn s. Fo r this
re aso n, follow all the warnin gs and ge nera l
saf ety pr eca uti ons pr ov ided in the follow in g i n·
form ation . Th e e ng ine c ompartm en t is a d an­
ger ous a re a .
¢ ,&. .
A WARNING
- T urn the engine off.
- Switch the ign ition off .
- Set the parking brake .
- Place the selector lever in the P pos it ion.
- Let the engine cool down.
- Never open the hood when there is steam or coolant escaping from the eng ine compart­
ment, because there is a risk that you could
be burned . Wait until no steam or coolant is
escaping .
- Keep children away from the engine com­
partment .
- Never spill fluids on a hot engine. These flu­
ids (such as the freeze protection contained
in the coolant) can catch fire .
- Avoid short circu its in the electrical system,
especially to the battery .
- When working in the engine compartment ,
remember that the radiator fan can sw itch
on even if the ign ition is switched off , which
increases the risk of pe rsonal injury.
- Never open the cap on the coolant expan­ sion tank when the eng ine is warm . The
cooling system is under pressu re .
- To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
large cloth when opening.
- Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
- If tests need to be performed w ith the en­
gine running, there is additional dange r due
Ch eck ing and Filling
to moving components (such as the ribbed
be lt, alternator and radiator fan) and from
the high voltage ignition system.
- Do not press the acce lerator pedal inadver­
tently if a gear is selected when the vehicle
is stationary and the engine is running. Oth­
erwise, the vehicle will start to move imme ­
diate ly and this could result in an accident .
- Pay attent ion to the following warnings list­
ed when work on the fuel system or on the
electrical equipment is required.
- Do not smoke .
- Never wor k near open flames .
- Always have a working fi re extingu isher
nearby
- All work on the battery or electrical system
in your veh icle can result in inju ries, chemi­
cal burns, acc idents or burns . Because of
this, all work must be performed
onl y by an
authorized Audi dealer or authorized Audi
Service Facility.
- To reduce the risk of electric shock and in­
jury, never touch the following components
when the engine is running or is being start·
ed:
- Ign it ion cable
- Other components in the electronic high -
voltage ign ition system
- If you must check or perform work on the
engine wh ile it is running:
- Set the parking brake and place the selec­
tor lever in the P (park) position first .
- Always proceed w ith extreme caution so
that clothing, jewelry or long hair do not
become caught in the radiator fan , fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginning
work and do not wear clothing that can hang down into the engine .
- Lim it your exposure to exhaust and chemi­
cals to as short a time as possible
¢ ,&. .
A WARNING '"--
California Proposition 65 Warning:
235

Checking and Filling
-Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and reproduct ive harm . In addition, certain flu­
ids contained in veh icles and certain prod­
ucts of compo nent wear con tain or emit
c hemicals known to the State of Califo rnia
to cause cance r and birth defects or other
reproductive harm .
- Battery posts, termina ls and re lated acces­
sories contain lead and lead compounds, chemicals known to the State of California
to cause cancer and reproductive harms .
Wash hands after handling .
(D Note
When fil lin g flu ids, be sure not to mix the flu ­
ids up . Otherwise severe ma lfunctions and en­
gine damage w ill occur .
@ For the sake of the environment
You shou ld regularly chec k the ground under
your vehicle in order to detect leaks qu ickly. If
there are visible spots from oil or other fluids,
bring your vehicle to an authorized Aud i deal­
er or author ized Audi Se rvice Facility to be
checked.
Opening/closing the hood
The hood is released from inside the vehicle.
F ig . 17 9 Sect io n from the driv er' s s ide footwell: relea se
l ever
236
~ 0 0
ct Q)
F ig. 1 80 Unlocked hood : lev er
Make su re the wiper a rms are not raised up from
the windshie ld. Otherw ise the paint could be
dam aged .
Opening the engine compartment lid
"With the driver's door open, pull the lever be -
low the instrument pane l in the direction of the
arrow
9 fig . 179 .
" Raise the hood slightly 9 ,& .
"Press the lever 9 fig. 180 in the direct ion of the
arrow . This releases the hooks .
" Open the hood.
Closing the engine compartment lid
" Push the hood down u ntil yo u over ride the
for ce of the s truts .
" Let the hood fa ll lightly into the latch .
Do not
press it in.
~ ,& .
&_ WARNING
-Never open the hood when there is steam o r
coo lant escaping from the engine compart­
ment, because there is a risk that yo u could
be burned. Wait unt il no steam or coolant is
escaping.
- For safety reasons, the hood must always be
closed securely while dr iving . Because of
this, always chec k the hood after closing i t
to make sure it is latched correctly . T he
hood is lat ched if the front corners canno t
be lifted .
- If you notice that the hood is not latched
while you are d riving, s top imme diate ly and
close it, because d riving when the hood is
no t latched increases the r isk o f an accident .

CD
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Checking and Filling
Engine compartment overview
The most important check points .
Fig. 181 Typ ica l layout of the reservo ir and the eng ine o il filler open ing
(D Coolant expans ion tank (- l) ¢ page 241
@ Engine oi l dipstick¢ page 239
@ Engine oil filler opening
(<t::r.) ¢ page 239
© Eng ine oi l label * w ith VW stand ard
¢ page237
® Brake fluid reservoir ((0)) ¢ page 242
@ Jump start po in t (+ ) under a cove r, (-) body
g ro und poin t¢ page 285
(J) Fuse housing ¢ page 281
@ Washer fluid rese rvoir (W) ¢ page 244
The engine oil dipst ick and the engine oil filling
ope ning ¢ fig. 181 (items@and @) may be lo­
cated in diffe rent places depending on the engine
des ign .
& WARNING
Read and follow all WARN INGS before check­
ing any th ing in t he eng ine com par tment
¢page 235.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci­
fications.
T he serv ice interval display in the instrument
cluster of yo ur vehicle will inform you when it is
time for an oil change. We recommend that you
have your o il changed by an authorized Audi Serv­
ice Adv isor.
If you must add oil betwee n oil changes, use an
oil that matc hes the Audi oil quality standard
listed on the sticker. The sticker is located at the
front of the engine compartment¢ page 237,
fig. 181 .
Audi recommend s
~Castrot f (gfg{E@ ?rtlJF'E:£5:1£11'1Ai.
Audi recommend s Longlife high performanc e
engine oil from Aud i Genu ine Parts .,,.
237

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Cooling system
Coolant
The engine cooling system is filled with a mixture
of pur ified water and coolant additive at the fac­
tory. This coo lant must not be not changed.
The coolant level is monitored through the. in­
dicator light
¢page 12. However , we do recom­
mend occasionally check ing the coo lant level
manually.
If you must add coolant, use a mixture of water
and coolant addit ive. Mixing the coolant additive
with distilled water is recommended.
Coolant additive
The coolant additive is made of anti-freez ing and
corros ion protection agents. Only use the follow­
ing coolant addit ives . These additives may be
mixed with each other.
Coolant additive Specification
G13 TL 774
J
G12++ TL 774 G
The amount of coo lant add itive that needs to be
mixed with water depends on the climate where
the vehicle will be operated. If the coolant addi­ tive percentage is too low, the coolant can freeze
and damage the engine.
Coolant addi- Freeze protec-
tive tion
Warm regions min. 40%, m in. -13 °F
max. 45% (-25 °C)
Cold regions min. 50%, max
. -40 °F
max. 55% (-40 °C)
(D Note
- Before the start of winter, have your author­
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate . Th is is especially important
when driving in colder climates.
- If the appropriate coolant additive is not
available in an emergency, do not add any
other additive . You could damage the en-
Checking and Filling
gine. If this happens, only use water and re­
store the correct mixture ratio with the
specified coolant add it ive as soon as possi­
ble.
- Only refill with new coolant .
- Radiator sealant must not be mixed with
the coolant.
Adding coolant
Fig. 184 Engine compartment: coolant expansio n ta nk
cover
-N
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Observe the safety precautions ¢ A in Working
in the engine comportment on page 235.
Checking the engine coolant level
.,. Park your vehicle on a leve l surface .
.,. Switch the ignition off.
.,. Read the coolant level on the coolant expansion
tank
¢ page 237, fig . 181. The coolant level
must be between the markings when the en­
gine in cold . When the engine is warm it can be
slightly above the upper mark ing .
Adding coolant Requirement: there must be a residual amount of
coolant in the expansion tank
¢ (D .
.,. Let the engine cool down.
.,. Place a cloth over the coolant expansion tank
cap and unscrew the cap counterclockw ise
Q .&, .
.,. Add coolant m ixed in the correct rat io
¢ page 241 up to the upper marking .
.,. Make sure that the fluid level remains stable.
Add more coolant if necessa ry .
.,. Close the cap securely .
Coo lant loss usually indicates there is a leak. Im-
mediately drive your vehicle to an author ized .,..
241

Checking and Filling
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
The cooling system is pressurized and can be­
come very hot. To reduce the r isk of burns
from hot coolant:
- Do not open the coolant expansion tank cap when the eng ine is hot. This increases the
risk of burns.
- Stop the engine and allow it to cool.
- Protect your face, hands and arms from es-
caping coolant and steam by covering the
coolant tank cap with a large, thick cloth.
- Turn the coolant tank cap counterclockwise
slowly and keep light pressure o n the cap.
- To reduce the risk of burns, do not allow any
antifreeze or coolant to drip onto the ex­ haust system or hot eng ine components .
T he ethylene glycol in eng ine coolant can
catch fire under certa in circumstances.
- The coo lant add itive and the coolant can be
dange rous to your health. For this reason,
keep the coolan t in the origina l container
and away from children. There is a risk of
poisoning.
- When working in the engine compartmen t,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of inj ury.
(D Note
Do not add coolant if the exp ansion tank is
empty . Air could enter the cooling system and
damage the engine . If this is the case, do not
continue driving. See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
242
Brake fluid
Fig. 1 85 Eng ine compa rtment: cover o n the brake fluid
reservo ir
Observe the safety precautions ¢ A in Working
in the engine compartment on page 235.
Check ing the brake fluid level
... Read the bra ke fluid level o n the bra ke flu id
reservoir
¢ page 237, fig . 181. The brake f luid
level must be between the MIN and MAX mark­
ings ¢&_ .
The brake f lu id leve l is monito red au toma tically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dea ler or authorized Audi Service
Fac ility.
A WARNING
- I f the brake fl uid leve l is below the MIN
marking, it can impair the bra king effec t
and driving safety, which increase the risk o f
an accident . Do not continue driv ing. See a n
author ized Audi dealer or authorized A udi
Serv ice Facility for assistance.
- If the brake fl uid is old, b ubbles may form
in the brake system during heavy braking.
This would impair braking performance and
driving safety, which increases the r isk of an
accident.
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
w it h VW standard SO l 14 or
FMVSS- 116 DO T 4.

Wheels
Model/ Tire designation Tire pressure
Engine Normal load Maximum load
(up to 2 people)
front rear front rear
PSI
TT : 245/45 R17 95Y
2.0L High Performance
32
4-Cylinder 245/40 R18 93H
All Season
32
245/40 R18 93Y
High Performance 32
245/35 R19 93Y
High Performance
35
255/30 R20 92Y
High Performance
35
A WARNING
Please note the important safe­
ty precautions regarding tire pressure ¢
page 256 and load
limits¢
page 258.
Tires and vehicle load limits
There are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop .
Overloading can not only lead to
loss of vehicle control, but can al­
so damage important parts of the
vehicle and can lead to sudden
tire failure, including a blowout and sudden deflation that can
cause the vehicle to crash.
258
kPA PSI kPA
PSI kPA PSI kPA
220 29 200 33 230 30 210
220 29 200 33 230 30 210
220 29 200 33 230 30 210
240 32 220 35 240
32 220
240 32 220 38 260 32 220
Your safety and that of your pas­
sengers also depends on making
sure that load limits are not ex­
ceeded. Vehicle load includes ev­
erybody and everything in and on
the vehicle. These load limits are
technically referred to as the vehi­
cle's
Gross Vehicle Weight Rat­
ing
("GVWR").
The "GVWR" includes the weight
of the basic vehicle, all factory in­
stalled accessories, a full tank of
fuel, oil, coolant and other fluids plus maximum load. The maxi­
mum load includes the number of
passengers that the vehicle is in­
tended to carry ("seating capaci-
ty") with an assumed weight of ..,