2017 AUDI TT COUPE light

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~ Guide the upper tether strap into the rear cargo
area
r::!>fig. 181.
~ Slide the tether strap hook over the anchor
bracket.
~Pullon the tether strap hook so that the spring
catch of the hook engages .
~ Tighten the tether strap firmly follow ing the
child restraint manufacturer's instruct ions .
Releasing the tether strap
~ Loosen the tension following the child restraint
manufacturer's instructions.
~ Depress the spring catch on the hook and re ­
lease it from the anchorage .
(D Note
If you leave the child restraint with the tether
strap firmly installed for several days, this
could leave a mark on the upholstery on the
seat cushion and backrest in the area where
the tethe r strap was installed. The upholstery
wou ld also be permanently stretched around
the tether strap. This applies especially to
leather seats.
Using tether straps on rearward-facing
child restraints
Currently, few rear -facing child restraint systems
come w ith a tether . Please read and heed the
child restraint system manufacturer's instruc­
tions carefully to determine how to properly in­
stall the tether.
_& WARNING
A child in a rearward -facing chi ld safety seat
installed on the front passenger seat will be
seriously injured and can be killed if the front
airbag inflates - even w ith an Advanced A irbag
System.
- The inflating airbag wi ll hit the child safety
seat or infant carrier with great force and
will smash the ch ild safety seat and chi ld
against the backrest, center armrest, or
doo r.
- If you must install a rearward fac ing ch ild
safety seat on the front passenger seat be­
cause of except ional circumstances and the
Child safety
PASSENGER AIR BAG OFF~; light does not
come on and stay on, immediately install
the rear-facing child safety seat in a rear
seating position and have the a irbag system
inspected by your Audi dealer.
Additional information
Sources of information about child
restraints and their use
There are a number of sources of additional in­
format ion about ch ild restraint selection, instal­
lation and use :
NHTSA advises that the best child safety seat is
the one that fits your child and fits in your vehi­ cle, and that you will use correctly and consis­
tently .
Try before yo u buy!
U.S National Highway Traffic Safety Administra­
tion
Tel.: 1 (888) 327-4236 (TTY: 1 (800) 424-9153)
www .nhtsa .gov
National SAFE KIDS Campaign
T el.: 1 (202) 662-0600
www.safekids.org
Safety BeltSafe U.S .A
Tel.: 1 (800) 745-SAFE (English)
T el.: 1 (800) 747-SANO (Spanish)
www.carseat.org
Transport Canada Information Centre
Tel.: 1 (800) 333-0371 or call 1 (613) 998-8616
if you are in the Ottawa area
http://www.tc.gc.ca/ eng/ roadsafety/men u. htm
Audi Customer Relations
Tel.: 1 (800) 822-2834
239

Check ing and F illing
Checking and Filling
Fuel
Gasoline grade
The correct gasoline grade is stated on the inside
of the fuel filler door .
The vehicle is equipped with a catalytic converter
and must only be driven w ith
unleaded gasoline .
Audi recommends using TOP TIER Detergent Gas­
oline. Additional information on TOP TIER Deter­
gent Gasoline can be found on the offic ial web­
site (www .toptiergas.com) .
The individua l gasoline grades are differentiated
by
octane ratings . This value is given with (R +M)/
2 equating to AKI or in RON.
The fo llow ing headings match the correspond ing
sticker in the fue l filler door.
UNLEADED FUEL ONLY MIN. (R+M) /2 87
Regula r/ MIN. RON
91 Regular
Use regu la r gaso line with minim um 87 AKI/
91
RON ~ 0 .
The max imum eng ine powe r is only reached if
p rem ium gaso line 91 A KI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN . (R
+M)/2
91 / SUPER MIN. RON 95
Using premium gasoline with m inim um 91 AKI/
95 RON is recommende d.
If premium gasoline is not available, you can also
use reg ula r gaso line 87 A KI/ 91 RON . Howeve r
this does reduce t he e ngine powe r slight ly.
(D Note
- Fill ing the tank just one time with leaded
fuel or other meta llic additives will cause
permanent de te riorat io n to the catalyt ic
conve rter func tion.
- Whe n gasol ine with an oc tane r ati ng that is
too low is used, high speeds o r heavy engi ne
l o ad can lead to engi ne d amage.
240
(D Tips
The vehicle may be filled with fuel that has a
h igher octane rating than what is requi red by
the eng ine.
Blended gasoline
Use of gasoline containing alcohol or MTBE (methyl tertiary butyl ether)
You may use unleaded gasoline blended with al­
cohol o r MT BE (commonly referred to as oxygen­
ates) if the blended m ix tu re meets t he fo llow ing
c rit er ia:
Blend of gasoline m ethano l (wood alcohol or
methyl alcohol)
- Anti-knock index must be 87 AKI or h igher.
- Blend must contain no more than 3% metha-
nol.
- Blend must contain more tha n 2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
- Anti-k noc k index mus t be 87 AK I or higher.
- Blend must not conta in mo re than 15% etha-
nol.
Blend of gasoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend mus t contain no t mo re than 15% MT BE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform es­
pecially well for w inter or s umme r dr iv ing . Dur­
i ng seasonal change-ove r, we s ugges t that yo u
fill up a t busy gas stat ions w here the seasona l
adjus tment is mo re li kely to be made in t ime .
(D Note
-Metha nol fuels which do not meet these re­
quirements may cause cor rosion and dam ­
age to plas tic and rubber com ponen ts i n t he
fue l system.
- Do not use f ue ls that fa il to meet the speci ­
fie d cr iteri a in th is chap ter.

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-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
reproductive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts , terminals and related 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 filling fluids, be sure not to mix the flu­
ids up. Otherwise severe ma lfunctions and en­
gine damage will occur.
@ For the sake of the environment
You shou ld regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids, bring your vehicle to an authorized Audi deal­
er or author ized Audi Service Facility to be
checked.
Opening/closing the hood
The hood is released from inside the vehicle.
Fig. 187 Sect ion from the driver 's side footwell: release
lever
Checking and Filling
Fig. 188 Unlocked hood : lever
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged .
Opening the engine compartment lid
"With the driver's doo r open, pull the lever be-
low the instrument panel in the direction of the
arrow
q fig. 187.
" Raise the hood slightly ¢.&_ .
" Press the lever
qfig. 188 in the direct ion of the
arrow. This releases the hooks .
"O pen the hood .
Closing the engine compartment lid
" Push the hood down until you override the
force of the struts.
" Let the hood fall lightly into the latch .
Do not
press it in. ¢.&_ .
A WARNING ,..___
-Never open the hood when there is steam or
coo lant escaping from the engine compart ­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
- For safety reasons, the hood must always be
closed securely while driving. Because of
this, always check the hood after closing it
to make sure it is latched correctly. The
hood is latched if the front corners cannot
be lifted.
- If you notice that the hood is not latched
while you are driving, stop immediately and
close it, because this increases the risk of an
accident .
245

Using the proper engine oil is important for the
functionality and s ervice life of the engine. Your
engine was factory-filled with a high -quality oil
which can usually be used throughout the entire
year .
Note
Your Limited New Vehicle Warranty does not
cover damage or malfunctions due to failure
to follow recommended maintenance and use
requirements as set forth in the Audi Owner's Manual and Warranty & Maintenance booklet .
- Use only a high quality engine oil that ex-
pressly complies with the Aud i oil quality
standard specified for your vehicle's engine.
Using any o ther oil can cause serious engine
damage.
- Do not mix any lubricants o r other additives
into the engine oil. Doing so can cause en­
gine damage.
@ Tips
If you need to add oil and there is none availa­
ble that meets the Audi o il quality standard
your eng ine requ ires, you may add a total of
no more than 0 .5 qt (0,5 l) of a h igh-quali ty
"synthet ic"oil that meets the following speci ­
fications.
- ACEA A3 or API SM with a v iscosity grade o f
SAE OW-30, SAE SW -30 or SAE SW-40.
- Fo r more information abou t engine o il t ha t
has been approved for your vehicle, please
contact either your authorized Audi dea ler
or Audi Custome r Relat ions at
1 (800) 822-2834 or visit our web site at
www.audiusa.com or www.audican ada.ca .
Engine oil consumption
T he engine in your vehicle depends on an ade­
qua te amoun t of oil to lubricate and cool all of
i t s moving par ts.
In order to provide effective lub rication and coo l­
ing of in te rnal engine components, a ll internal
~ combustion engines consume a cer tain amount
;:::: of oil. Oil consumption varies from engine to en-
" ~ gine and may change sign ificantly over the life of 0
~ the eng ine . Typically, eng ines with a spec ified c:o
Ch eck ing and Filling
break-in period (see ¢ page 55) consume more
oi l during th e break-in period than they consume
after oil consumption has stabilized.
Under normal cond itions, the rate of oil con­
sumption depends on the q uality and viscos ity o f
the oil , the RPM (revolutions per minut e) at
which the engine is operated, the amb ient tem­
perature and road condit ions. Further factors are
the amount of oil dilution from w ater condensa­
tion or fuel resid ue and the oxidation level of the
o il. As any engine is subject to wear as mileage
builds up, the oi l consumption may increase ove r
t ime unt il repla cement of worn components may
become necessary.
With al l these variables coming into play, no
standard rate of o il consumption can be estab­
l ished or spec ified . T he re is no alte rnative to reg­
u la r and fre quent chec king of the o il level , see
Note .
If the yellow engine oil level warning symbo l II
in the instrument cluster lights up , you sho uld
check the o il level as soon as possible
¢
page 248 . Top off the o il at your earliest con­
venience ¢
page 248.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS¢
page 244 .
(D Note
Driving with an insufficient oil level is likely to
cause severe damage to the engine.
(D Tips
- The oil pressure warning display. is not
an indicator of the oil le vel. Do not rely on
it . Instead, check the oil level in your en·
gine at regular intervals , preferabl y each
time you refuel, and always befo re going
on a long trip.
- If you have the impression your engine con­
sumes excessive amounts of oil, we recom­
mend that you consult an author ized Audi
dea ler to have the cause of your concern
prope rly diagnosed . Keep in mind that the .,,.
247

Check ing and F illing
Cooling system
Coolant
The engine coo ling system is filled with a mixture
of pur ified wate r and coolan t addit ive at the fa c­
t ory . T his coo la nt must not be not changed .
The coolant leve l is monito red throug h the . in­
d icator light
c::> page 12. Howeve r, we do recom­
mend occasionally chec king the coo la nt level
manually.
If you must add coolant, use a m ixt ure of wa ter
a nd coo lant add it ive. Mixing the coolant additive
with d istilled water is recommended.
Coolant additive
The coolant additive is made of ant i-freezing and
corros ion protection agents. Only use the fo llow­
ing coolant add it ives. These addit ives may be
m ixed w it h 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 wit h water depends on the climate where
the vehicle will be operated . If the coolant addi ­
tive percentage is too low, the coolant can free ze
and damage the engine.
Coolant addi- Freeze protec-
tive tion
Warm regions min . 40%, m in. -13 °F
max . 45% (
- 25 °C)
Co ld regions min. 50%, max. -40 °F
max. 55% (-40 °C)
CJ) Note
-Befo re the start of winter, have your author ­
i zed Audi dealer or authorized A udi Service
Fac ility check if the coolant additive in yo ur
vehicle matc hes the percentage approp riate
for the climate . Th is is especially important
whe n driving in co lde r clima tes.
- If the approp riate coolant additive is not
available in an emergency, do no t add any
other addi tive . You cou ld damage the en-
250
gine . If this h appens, on ly use wa ter and re ­
store the correct m ixt ure ratio with t he
specified coo lant ad ditive as soon as poss i­
ble.
- Only refill w ith new coolant .
- Radiator sealant mus t not be mixed wi th
the coolant .
Adding coolant
Fig. 192 En gine co mpar tm ent: coo la nt expans io n ta nk
cove r
-"' -"' •
"" co a,
Observe the safety precautions c::> A in Working
in the engine compartment on page 244 .
Checking the eng ine coolant level
.,. Park your veh icle on a level s urface .
.,. Switch the ignit ion off.
.,. Read the coolant level on the coolant expansion
tank
c::> page 246, fig. 189. The coolant leve l
must be betwee n the markings when the en­
gi ne i n cold . When t he e ng ine is warm it can be
slightly above the uppe r mar king .
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion ta nk
c::> (D .
.,. Let the engine coo l down.
.,. Place a clot h over the coolant expansion tan k
cap and unscrew the cap counterclockw ise
¢ .&, .
.,. Add coo lant m ixed in the cor rect rat io
c;, page 250 up to t he up per ma rk ing .
.,. Make sure that the fluid level remains stab le.
Add mo re coolan t if necess ary.
.,. Close the cap sec urely .
Coo lant loss usually ind icates there is a lea k. Im-
med iate ly dr ive you r ve hicl e to a n author ized .,.

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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 risk 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 on the cap .
- To reduce the risk of burns, do not allow any
antifreeze or coolant to drip onto the ex­
haust system or hot engine components .
The ethylene g lycol in engine coolant can
catch fire under certain circumstances.
- The coolant add itive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can sw itch
on even if the ignition is switched off, which
increases the risk of injury.
(D Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the engine. If this is the case, do not
cont inue driving. See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
Checking and Filling
Brake fluid
Fig. 193 En gi ne compartment: cover on the b rake fluid
rese rvoir
Observe the safety precautions QA in Working
in the engine compartment on page 244 .
Checking the brake fluid level
.,. Read the brake f luid level on the brake fluid
reservoir
Q page 246, fig . 189. The brake fluid
level must be between the MIN and MAX mark­
ings
Q A .
The brake fluid level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility.
.&_ WARNING
- If the brake fluid level is below the MIN
marking, it can impair the brak ing effect
and driving safety, which increase the risk of
an accident. Do not continue driving. See an
authorized Audi dealer or authorized Audi
Serv ice Facility for assistance.
- If the brake fluid is old, bubbles may form
in the brake system during heavy braking.
This would impair braking performance and
driving safety, which increases the risk of an
accident .
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
with VW standard 501 14 or
FMVSS-116 DOT 4.
251

Check ing and F illing
CJ) Note
- If the brake fluid level is above the MAX
mark ing, brake fluid may leak out over the
edge of the reservoir and result in damage
to the veh icle.
- Do not get any brake fluid on the vehicle paint, because it will corrode the paint.
Battery
General warn ings about batteries
All of the ba tteries in yo ur vehicle a re pr actically
maintenance-free and are checked dur ing a ve hi­
cle inspection . Because of the complex power
supp ly, all wo rk on batter ies such as d isconnect­
ing, replacing, etc. should
only be performed by
an author ized Audi dealer or authorized Audi
Serv ice Facility
c::> .&. .
The te rm "vehicle battery" refers to the 12 Vo lt
battery in your vehicle.
Detailed warning s for the vehicle battery:
®
W ear eye p rotection .
~
Battery acid is high ly co rrosive. We ar p ro-
tective gloves and eye pro tection.
@
Fire, sparks, open flame and smok ing a re
forb idden.
~
A highly explosive mixtu re of gases can
form when charging batteries.
®
Keep c hildre n away from battery acid and
ba tteries.
8_ WARNING
-All work on the ba tte ry o r electrica l sys tem in
your vehicle can result in injuries, chemical
burns, accidents o r burns. Because of this, a ll
work m ust be perfo rmed
only by an a uthor­
ized Aud i dea le r or aut horized Audi Serv ice
Facility .
8_ WARNING
California P roposit ion 65 Warning:
- Battery posts, termina ls and re lated acces­
so ries contain lead and lead compounds,
252
chemicals known to the State of California
to cause cancer and reproductive problems.
Wash hands after handling.
(D Note
Protect the vehicle battery aga inst freezing if
the veh icle wi ll be par ke d for long periods of
time so that it is not destroyed by "free zing"
c::> page253.
Vehicle battery
The term "vehicle battery" refers to the 12 Volt
ba ttery in your vehicle.
Not running the vehicle for long periods of
time
If you do not d rive your vehicle for severa l days o r
weeks, e lectrical equ ipment is g radually sca led
back or sw itched off. Th is reduces energy use and
ensures the vehicle will be ab le to start after long
per iods of t ime
c::> page 93. Some convenience
funct ions, such as interio r light ing o r power seat
adjustment, may no t be avai lab le unde r ce rtain
c ir cu ms tances . These co nvenience func tions will
be available again once you switch t he igni tion on
and sta rt the eng ine .
E ven when elect rical eq uipmen t is switched off,
t h e eq uipme nt can still drai n the vehicle ba tte ry
if the ve hicle is not dr iven for long periods of
time . Deep drai ning results in a chem ica l reaction
that destroys the i nside of the vehicle batte ry.
The vehicle battery must be charged every month
to reduce the risk of this happening
c::> page 253.
Contact an authori zed Aud i dea ler or authori zed
Audi Service Facility for more information.
Winter operat ion
Co ld weather places higher demands on the vehi­
cle battery. Th is res ults in reduced starting abili­
ty. Have the vehicle batte ry checked by an au­
thorized Audi dea ler or authorized Audi Service
Fac ility befo re t he cold time of year .

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Charging the vehicle battery
Fig. 194 Engine compartment: connectors for a charger
and jump start cables
Requirement: only use chargers with a maximum
charging voltage of 30 amps/14.8 Volts.
The
vehicle battery cables remain connected .
.,. Read the warn ings¢
& in General warnings
about batteries on page 252
and ¢ ,& .
.,. Switch off the ignition and all electrical equip­
ment .
.,. Open the hood¢
page 245 .
.,. Open the red cover on the positive terminal
¢fig. 194 .
.,. Clamp the charger terminal clamps to the jump
start pins
according to the instructions
¢fig. 194 .
.,. Now insert the power cable for the charging de­
vice into the socket and sw itch the device on.
.,. At the end of the charging process, switch the
charger off and pull the power cable out of the
socket .
.,. Remove the charger terminal clamps.
.,. Close the red cover on the positive terminal.
.,. Close the hood¢
page 245.
A WARNING
-A highly explosive mixture of gases can form
when charging batteries. Only charge the
vehicle battery in well-ventilated areas.
- A drained battery can freeze at tempera­
tures around 32 °F (0 °C). A frozen or
thawed vehicle battery must not be charged
and must not be used anymore. The battery
housing can crack and battery acid can leak
out if ice forms, which increases the risk of
an explosion and chemical burns . Contact an
Checking and Filling
authorized Audi dealer or authorized Audi
Service Facility for more information.
- Do not connect or disconnect the charging
cable while charging because this increases
the risk of an explosion.
@ Tips
- Only charge the vehicle battery through the
connections in the engine compartment.
- Read all of the manufacturer's instructions
for the charger before charging the vehicle
battery.
Windshield washer system
Fig. 19S Engine compartment: washer fluid reservoir cap
The windshield washer reservoir{!} contains the
cleaning solution for the windshield and the
headlight washer system*¢
page 246, fig. 189.
The reservoir capacity is found in ¢ page 299.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calcium. Always add window cleaner to the wa­
ter. When the outside temperatures are cold, an
ant i-freezing agent should be added to the water
so that it does not freeze.
(D Note
-The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions in the respective cl imate. A con­
centration that is too high can lead to vehi-
cle damage.
- Never add radiator anti-freeze or other addi-
tives to the washer fluid. .,.
253