2018 AUDI TT ROADSTER Owners Manual

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seriously injured and can be killed if the
front airbag inflates
-even with an Ad­
vanced Airbag System.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child against the backrest, center arm rest, door
or roof.
- Never install a rearward facing child safety
seat on the front passenger seat unless the
PASSENGER AIR BAG OFF~; light comes
on and stays on. If the
PASSENGER AIR
BAG OFF
~ ; light does not come on and stay
on have the airbag system inspected imme­
diately by your Audi dealer.
- The rear side of the child safety seat should
be positioned as close as possible to the
backrest on the vehicle seat.
- Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used ¢
page 187, Safety belts,
¢ page 194, Airbag system and
c> page 216, Important information.
A WARNING
If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety and
well-being require that the following special precautions be taken:
- Make sure the forward -facing seat has been
designed and certified by its manufacturer
for use on a front seat with a passenger
front and side airbag .
- Always follow the manufacturer's instruc­
tions provided with the child safety seat or
infant carrier.
- Always move the front passenger seat into
the rearmost position of the passenger
seat's fore and aft adjustment range, and as
far away from the airbag as possible before
installing the child restraint.
- Always make sure that nothing prevents the
front passenger's seat from being moved to
the rearmost position in its fore and aft ad­
justment range.
Child safety
- Always make sure the backrest is in an up­
right position .
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device , power inverter or seat heater
for child seats) on the front passenger seat if the device is connected to the 12-volt
socket or the cigarette lighter socket.
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any child restraint system on
this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion.
- Never place objects on the seat (such as a
laptop, CD player, electronic games device ,
power inverter or seat heater for child
seats). These may influence the electrical
capacitance measured by the capacitive pas­
senger detection system and can also fly
around in an accident and cause serious per­
sonal injury.
- Make sure that the
PASSENGER AIR BAG
OFF
'1; light comes on and stays on all the
time whenever the ignition is switched on.
- If the
PASSENGER AIR BAG OFF '1; light
does not come on and stay on have the air­
bag system inspected by your authorized
Audi dealer .
Booster seats and safety belts
Properly used booster seats con help protect
children weighing between abou t 40 lbs and
80 lbs (18 kg and 36 kg) who are less than 4 ft
9
in (5 7 in/1.45 m) tall .
Fig. 171 Passenger sea t: child properly restrained in a
booste r se at
223

Child safety
The vehicle 's safety belts alone will not fit most
chi ldren until they are at least 4
ft 9 in (57 in/
1.45 m) tall and weigh about 80 lbs (36 kg) .
Booster seats raise these children up so that the
safety belt will pass properly over the stronger
parts of their bodies and the safety belt can help
protect them in a crash .
.. Do not use the convertible locking retractor
when using the vehicle 's safety belt to restrain
a child on a booster seat .
.. The shoulder belt must lie as close to the cen­
ter of the child's collar bone as poss ible and
must lie flat and s nug on the upper body. It
must never lie across the throat or neck. The
lap belt must lie across the pelvis and never
across the stomach or abdomen . Make sure the
belt lies flat and snug . Pull on the belt to tight ­
en if necessary .
Chi ldren up to at least 8 years old (over 40 lbs or
18 kg) are best protected in chi ld safety seats de­
signed for their age and weight . Experts say that
the skeleta l structure, particularly the pelvis, of
these children is not fully developed, and they
must not use the vehicle safety belts without a
suitable child restraint.
It is usually best to put these children in appro­
priate booster seats. Be sure the booster seat
meets all applicable safety standards .
Booster seats raise the seating position of the
child and repos ition both the lap and shoulder
parts of the safety be lt so that they pass across
the child's body in the right places. The rout ing of
the belt over the child's body is very important
for the child's protection, whether or not a boos­
ter seat is used.
Never use the lap belt portion of the vehicle's
safety belt alone to restrain any child, regardless
of how big the child is. Always remember that
chi ldren do not have th e pronounced pelvic struc­
ture required fo r the proper function of lap belt
port ion of the vehicle's three point lap and
shoulder belts. The child's safety absolute ly re ­
quires that a lap belt portion of the safety belt be
fastened snugly and as low as possible around the pelvis . Never let the lap belt portion of the
224
safety belt pass ove r the child's stomach or abdo­
men .
In a crash, airbags must inflate w ith in a blink of
an eye and with considerable force. In order to do
its job, the airbag needs room to inflate so that it
will be there to protect the occupant as the occu ­
pant moves forward into the airbag .
A ve hicle occ upant who is o ut of pos it io n and too
close to the airbag gets in the way of an inflating
airbag . When an occupant is too close, he or she
will be struck vio lent ly and w ill rece ive serious or
possibly even fatal injury.
In order for the airbag to offer protection, it is
important that all vehicle occupants, especially
any ch ildren, who m ust be in the front seat be­
cause of exceptional c ircumstances, be properly
restrained and as far away from the airbag as
possible . By keeping room between the child 's
body and the front of the passenger compart­
ment, the a irbag can inflate completely and pro­
v ide supplementa l protection in certa in frontal
collisions.
_& WARNING
Not using a booster seat, using the booster
seat improperly, incorrect ly installing a boos­
ter seat or using the ve hicle safety belt im­
properly increases the r isk of serious personal
injury and death in a collision or other emer­
gency situation. To he lp reduce the risk of se­
rious personal injury and/or death:
- The shou lder belt must lie as close to the
center of the child' s collar bone as possible
and must lie flat and snug on the upper
body. It must never lie across the throat or
neck. The lap belt must lie across the pelvis
and never across the stomach or abdomen.
Make sure that the belt lies flat and snug .
P ull on the belt to tighten if necessary .
- Failur e to properly route safety belts over a
child's body will cause severe injuries in an
accident or other emergency situation
¢page 187.
- The rear side of the child safety seat should
be positioned as close as possible to the
backrest on the ve hicle seat .
-

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-Children on the front seat of any car, even
with Advance d Airbags, can be seriously in­
jured or even killed when an airbag inflates.
- Never let a child stand or knee l on the seat .
- Never let a child ride in the cargo area of
your vehicle.
-Always remember that a child leaning for ­
ward, sitting sideways or out of position in any way during an accident can be struck by
a deploying airbag . This will result in ser ious
personal injury or death.
- If you must install a booster seat on the front passenger seat because of exceptional c ircumstances the
PA SSENGER AIR BAG
OFF ~; light must come on and stay on,
whenever the ignition is switched on .
- If the PASSENGER AIR BAG OFF~; light
does not come on and stay on, perform the
checks descr ibed
¢ page 205, Monitoring
the Advan ced Airbag System.
- If the PASSENGER AIR BAG OFF ~; light
does not come on and stay on wheneve r the
ignition is switched on the infla ting airbag
will hit the child safety sea t or i nfant ca rr ier
with great force and will smash the child
safety seat and child against the bac krest,
center armrest, doo r or roof . Have the ai r­
bag system inspected immediately by your
Audi dealer.
- Always read and heed all WARNINGS when­
ever using a child restrained in a veh icle is
being
used¢ page 187, Safety belts,
¢ page 194, Airbag system and
¢page 216, Important information .
Securing child safety
seats
Securing a child safety seat using a safety
belt
Safe ty belts for the front passenger can be
locked with the convertible locking retractor to
properly secure child safety seats .
The safety belt emergency locking ret ractor fo r
the fro nt passenger's seat safety belt have a con­
ve rt ible lock ing retractor for child restra ints . The
safety belt must be locked so t hat belt webb ing
Ch ild saf ety
cannot unreel. The retractor can be activated to
l ock the safety belt and p revent the safety be lt
webb ing from loosening up dur ing no rma l driv­
ing . A chi ld safety seat can only be properly in­
stalled when the safety belt is locked so that the
c hi ld and ch ild safety seat will stay in p lace .
Always remembe r: Even thoug h your ve hicle is
equipped with an Advanced Airbag system, a
c hi ld shou ld always r ide in the seat proper ly re­
strained for its age and s ize .
A WARNING
-
Imp roperly installed child safety seats in­
crease the ris k of serious personal injury and
d eat h in a co llision.
- Always make sure that the safety be lt re­
tractor is locked w hen installing a child
safety sea t. An unlo cked safe ty be lt retra c­
tor cannot hold t he ch ild sa fety sea t in place
du ring normal driving or in a crash.
- Always buckle the child safety seat fi rmly in
place even if a ch ild is not si tt ing in it . A
loose child safety seat can fly a round dur ing
a sudden s to p or in a co llision .
- If the backrest is not se curely latched, the
child and the ch ild restraint will be thrown
forward togethe r with the backrest and w ill
strike parts o f the veh icle inter ior. The child
can be seriously injured or killed.
- The inflating airbag will h it the ch ild safety
seat o r infant ca rrier with great force and
will smash the child safety seat and child
aga inst the backrest, center a rmrest, door
or roof.
- Forward-facing child safety seats o r infant
car riers installed on the front passenger's
seat may in terfere w ith the deployment o f
the airbag and ca use serio us in ju ry to t he
child.
- Always read and hee d all WARNINGS when ­
eve r using a child restrained in a vehicle is
be ing used
¢ page 216. Spe cial precautions
apply w hen ins tall ing a child safety seat on
the front passenge r seat
r=;, page 195, Child
restraints on the front seat
-some impor-
tant things to know .
~
225

Child sa fety
A WARNING
Always take specia l precautions if you must
install a forward or rearward-facing chi ld re­
straint on the front passenger's seat in excep­
tional situations:
- Whenever a forward or rearward-facing
child restraint is installed on the front pas­
senger seat, the
P ASS ENGER AIR B AG OFF
'-i; light must come on and stay on whenev­
er the ignition is sw itched on .
- If the
PASS ENGER AIR B AG O FF ~; light
does not come on and stay on, perform the
checks descr ibed
<=> page 205, Monitoring
the Advanced Airbag System.
- If the PA SSENGER AIR BAG OFF ~; light
does not come on and stay on whenever the
ignition is switched on the inflating airbag
will hit the child safety seat o r infant ca rr ier
with great force and will smash the child safety seat and child against the backrest,
center armrest, door or roof . Have the air­
bag system inspected immediately by your
Audi dealer.
- Improper installation of chi ld restraints can
red uce their effect iveness or even prevent
them from providing any protection.
- An improperly installed chi ld restraint can
interfere with the airbag as it deploys and
seriously injure or even kill the child.
- Always carefully follow the manufacturer's
instructions provided w ith the ch ild safety
seat or carrier.
- After checking to make sure that the child
restra int is properly installed, make certain
that the child restraint is correctly recog­
nized by the capac it ive passenger detection
system in the front passenger seat and that
the
PASSENGER AIR BAG OFF '-i; light sig­
nals the co rrect front passenge r frontal air­
bag status.
A WARNING
Forward-fac ing ch ild rest raints:
- Always make sure the forward-facing seat
has been designed and cert ified by its man­
ufact urer for use on a front seat with a pas­
senger front and side airbag .
226
--
Never put the forward-facing child restraint
up, against or very near the instrument pan­
el.
- Always move the passenger seat into its
rearmost posit ion in the seat's fore and aft
adjustment range, as far away from the a ir­
bag as poss ible before installing the for­
ward-facing chi ld restraint. The backrest
must be adjusted to an upr ight position.
- Make sure that the
PASSENGER AIR BAG
OFF
'-i; light comes on and stays on all the
time wheneve r the ign it ion is switched on.
A WARNING
Rearward-facing chi ld restraints:
- A child in a rearward-fac ing ch ild safety seat
installed on the front passenger seat will be
serious ly injured and can be killed if the
front airbag inflates
-even with an Ad­
vanced Airbag System.
- The inflating airbag will h it the ch ild safety
seat o r infant c arr ier with great force and
w ill smash the child safety seat and child
against the backrest, center armrest, door
or roof.
- Always be especially carefu l if you must in­
stall a rearward facing child safety seat on
the front passenger seat in exceptiona l cir­
cumstances.
- Make sure that the
PASSENGER AIR BAG
OFF
'-i; light comes on and stays on all the
time whenever the ign it ion is switched on.
- If the
PASSENGER AIR BAG OFF '-i; light
does not come on and stay on, have the air­ bag system inspected by your Audi dealer.
Activating the convertible locking retractor
Use the convertible locking retractor to secure a
child restraint.
A lways heed the c hil d safety seat manufacturer's
instructions when insta lling a child restraint in
your vehicle. To activate the convertib le locking
retractor:
.,. Place the chi ld restraint on a seat .
.,. Slowly pull the belt all the way out .

Cl 00 .-< N r-­N .-< 0 r-­Vl 00
~ Route it around or through the child restraint
belt path
¢ ,& .
~ Push the child safety seat down with your fu ll
weight to get the safety be lt really t ight.
~ Insert the belt tongue into the buckle for that
seat ing pos ition .
~ Guide the safety belt back into the retractor un­
t il the belt lies flat and snug on the ch ild safety
seat.
~ Yo u should hear a "clicking" no ise as the belt
winds back into the inertia reel. Test the con ­
vertib le locking retractor by pu lling on the belt .
Yo u should no longer be ab le to p ull the belt
o ut of the retractor. The convertible locking re­
tractor is now activated .
~ Make sure that the red release button is fac ing
away from the child restraint so that it can be
unbuckled qu ickly .
~Pullon the be lt to make sure the safety belt is
prope rly tig ht and fastened so that the seat
canno t move forward and s idew ays more th an
1 in (2 .5 cm).
A WARNING
Using t he wrong child restraint or an improp ­
erly installed c hild restraint can cause ser ious
personal inju ry or death in a cras h.
- Always make sure that the safety belt re -
tractor is locked when install ing a child
safety seat. An unlocked safety belt retrac­
tor cannot hold the child sa fety seat in place
dur ing normal dr iving or in a crash.
- Always buckle the child safety seat firmly in
place even if a child is not sitting in it. A
loose child safety seat can fly around duri ng
a sudden stop or in a crash.
- Always make sure the seat backrest to which
the ch ild restraint is installed is in an up­
r ight position. Ot he rw ise, the seatback w ith
the ch ild safety sea t atta ched to i t could fly
f orward in the even t of an ac cident o r othe r
eme rgency si tuation .
- Alw ays read and heed all WAR NINGS w hen ­
ever using a child restra ined in a veh icle is
being used
¢ page 216. Specia l preca utions
app ly when installing a child safety seat on
the front passenger seat
9 page 195, Child
Ch ild saf ety
restraints on the front seat -some impor ­
tant things to know.
Deactivating the convertible locking
retractor
The convertible locking retractor for child re­
straints will be deactivated automatically when
the belt is wound all the way back into the re ­
tractor .
~ Press the red button on the safety belt buckle.
The belt tongue will pop out of the buck le.
~ Guide the safety belt all the way back into its
stowed posit ion .
Always let the safety belt retract completely into its stowed posit ion . The safety be lt can now be
u sed as an ord inary safety belt w ithout the con­
vertib le locking ret racto r fo r ch ild rest raints .
If the convertible locking retractor should be ac­
t ivated inadvertently, the safety belt must be un­
fastened and guided completely back into its
stowed pos ition to deactivate th is feature .
If the
conve rtible locking retractor is not deactivated,
t h e safety be lt will g radu ally become tigh ter and
u ncomfortab le to wear.
A WARNING ,..__ -
I mproper ly installed child safety seats in­
crease the risk of se rious persona l injury and
death in a co llision.
- Never unfasten the safety belt to deactivate
the co nvertib le locking ret racto r fo r ch ild re­
stra ints w hile the vehicle is mov ing. You
wou ld not be restrained and could be seri­
ously injured in an accident .
- Always read and heed all WARNINGS when­
ever us ing a chi ld restrained in a vehicle is
be ing used
¢ page 216. Special p recautions
apply when install ing a child safety seat on
the fro nt passenge r
seat¢ page 195, Child
restrain ts on the front seat
-some impor­
tan t things to know.
227

Child safety
Additional information
Sources of information about child
restraints and their use
T here are a number of so urces of addit iona l in ­
formation about child restra int selection, insta l­
lation and use:
N HTSA advises th at t he best child s afety se at is
t he one t hat fi ts your ch ild and fits in you r vehi ­
cle, and that yo u will use co rrectly and consis ­
tently.
Tr y before you buy!
U.S . National Highway Traffic Safety Adminis­
tration
T el.: 1-888- 327-42 36 (T TY : 1-800-42 4-9 153)
www.nh tsa.gov
National SAFE KIDS Campaign
T el. : (202) 662-0600
www.safek ids.o rg
Safety BeltSafe U .S .A.
Tel. : (800) 7 45-SAF E (E ng Lish)
Te l.: (800) 747-SANO (Span ish)
www.c arsea t.o rg
Transport Canada Information Centre
Tel. : 1-800-333-037 1 or call 1-613-998-8616 if
you are in the Ottawa a rea
http ://www.tc.gc.ca/ eng/ro adsafe ty/menu .h tm
Audi Customer Relation s
Tel.: (800) 822-2834
228

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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 with
unl ead ed g asoline.
Audi recommends using TOP TIER Detergent Gas­
oline. Additiona l information on TOP TIER Deter­
gent Gasoline can be found on the offic ial web­
site (www .topt iergas.com).
The individua l gasoline grades are differentiated
by
oc ta n e ra ting s. This value is given with (R +M)/
2 equating to AKI or in RON.
The fo llowing headings match the corresponding
sticker in the fuel fi ller door .
UNLEADED FUEL ONLY MIN. (R+M )/2 8 7
R egula r/ MIN. RON 91 Regula r
Use regu la r gasoline with minimum 87 AKI/
91 RON ~ (Di .
The max imum engine power is only reached if
prem ium gaso line 91 AKI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN . (R
+M )/2 91 / SUPER MIN. RON 95
Using prem ium gaso line with minimum 91 AKI/
95 RON is recommended.
If premium gasoline is not available, you can also
use regula r gasoline 87 AKI/ 91 RON . However
this does reduce the engine powe r sli ght ly.
{LlJ) Note
- Fill ing the tank just one t ime with leaded
fuel or other meta llic additives wi ll cause
permanent deter io rat ion to the catalyt ic
conve rter function.
- When gasoline with an octane rat ing that is
too low is used, h igh speeds o r heavy eng ine
l oad can lead to eng ine damage.
Ch eck ing and F illing
(D Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is requ ired by
the engine .
Blended gasoline
U se of g asoline cont aining alcohol or MTBE
( m eth yl tertiary butyl ether )
You may use unleaded gasoline blended with al­
cohol or MTBE (commonly referred to as oxygen­
ates) if the blended m ixture meets the fo llow ing
c riter ia:
Blend of ga soline me thanol ( wood alc ohol or
meth yl alcoh ol)
-Anti-knock index must be 87 AKI or h igher.
- Blend must contain no more than
3% metha-
nol.
- Blend must contain more than
2% co-solvents.
Blend of g asoline a nd eth ano l (g ra in a lcoh ol o r
eth yl alc ohol )
-Anti-knock index must be 87 AK I or h igher.
- Blend must not conta in more than
15% etha-
nol.
Blend of g asoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend must not contain more than
15% MTBE .
Seasonally a djust ed g aso lin e
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iving . Dur­
i ng seasonal change-over, we suggest that you
fill up at busy gas stat ions where the seasonal
adjustment is mo re likely to be made in t ime .
@ Note
-Methano l fuels which do not meet these re­
quirements may cause cor rosion and dam­
age to p lastic and rubbe r components in the
fue l system.
- Do not use fuels that fa il to meet the speci­
fied cr ite ria in t his chapter.
229

Checking and Filling
-If you a re unable to determine whether or
not a particular fuel blend meets the speci­
fications, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identified.
- Fuel system damage and performance prob­
lems resulting from the use of fuels differ­
ent from those specified a re not the respon­
sibility of Audi and are not covered under
the New Vehicle or the Emission Control System Warranties.
- If you experience a loss of fuel economy or
driveability and performance problems due
to the use of one of these fuel blends , we
recommend that you switch to unblended
fuel.
Gasoline additives
A major concern among many auto manufactur­
ers is carbon deposit build-up caused by the type
of gasoline you use.
Although gasoline grades differ from one manu­
facturer to another, they have certain things in
common. All gasoline grades contain substances
that can cause deposits to collect on vital engin e
parts, such as fuel injectors and intake valves. Al­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective .
Audi recommends using TOP TI ER Dete rgent Gas­
oline. For more information on TOP TIER Deter­
gent Gasoline , please go to the official website
(www .toptiergas .com) .
After an extended per iod of us ing inadequate
fuels, carbon deposit build-ups can rob your
en­
gine of peak performance.
(D Note
Damage or malfunction due to poor fuel qual­
ity is not covered by the Audi New Vehicle Limited Warranty.
230
Refueling
Fueling procedure
Your vehicle is equipped with a capless fuel filler
system .
Fig. 172 R ight rea r sid e of the vehicle : ope ning the fuel
fil ler door
Fig. 173 R ig ht rea r sid e of t he ve hicle: fuel pum p nozz le
in ser ted
The fuel filler door is unlocked or locked by the
central locking system.
.. Press on the left side of the fuel filler door to
open
r:::;, fig . 172.
.. Insert the fuel pump nozzle all the way into the
fuel tank filler neck
r:::;, fig. 173. Make sure it is
seated correctly.
.. Begin fueling. Once the fuel pump no zzle turns
off the first time, the fuel tank is full. Do not
continue fueling, or else the expansion space in
the tank will be filled with fuel.
.. After the fuel pump has switched off, wait five
seconds before removing it to allow the rest of
the fuel to finish dripping into the fuel tank.
.. Close the fuel filler door and then press on the
left side until it latches.
The correct fuel type for your vehicle can be
found on a label located on the inside of the f uel
ll>