2018 AUDI S3 SEDAN Owners Manual

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Tether anchors and tether straps
I
Applies to: Sedan
Fig . 256 Tet he r ancho rs: recess flaps be hind th e rea r sea t­
backs
Applies to: Cabriolet/Sportback
F ig. 257 Tethe r ancho rs: recess flaps be hind the re ar seat­
ba cks
Applies to: Sedan: The tether anchors fo r the rear
seating positions a re located in recesses in the
rear window
shelf ¢ fig. 256
Applies to: Cabriolet/Sportback: The tether an­
chors for the rear seat ing positions are located
on the backside of the rear seatbacks
¢ fig. 257.
A tether is a stra ight or V-shaped strap that at·
taches the top part of a child restra int to special
anchorage points in the vehicle .
T he purpose of the tether is to reduce the for ­
ward movement of the child restra int in a crash,
in order to help reduce the r isk of head injury
that could be ca used by str iking the veh icle in te­
rior .
Forward facing child restrai nts manufactured af­
ter September 1, 1999, are required by U .S. fed·
eral regulations to comply with new child head
movement perfo rmance requirements . T hese
new perfo rmance requirements make a tether
necessary on most new child safety seats .
Ch ild s afe ty
A WARNING
Improper installation of child restra ints wi ll
i ncrease the risk of injury and death in a
crash .
- Always follow the instructions prov ided by
the manufacturer of the ch ild restraint you
intend to insta ll in your Audi .
- Improper use of child restraint anchors (in ­
cluding tether anchors) can lead to injury in
a co llision . The anchors are designed to
withstand only those loads imposed by
car ·
rectly fi tted ch ild restraints.
- Never mo unt two child restraint systems on
one LA TC H lowe r anchor point.
- Never attach two child restraint systems to
one tether strap or tether anchorage.
- Never attach a tether strap to a tie-down
hook in the luggage compa rtment.
- Never use child restra int tether anchorages
to secure safety be lts or other kinds of occu­
pant restrain ts.
- Never secure or attach any luggage or othe r
items to the LA TCH lower anchorages or to
the tether anchors.
- If you must install a rearward facing child
safety seat on the front passenger seat be­
cause of excep tional cir cumstances a nd the
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.
311

Child safety
Installing the upper tether strap on the
anchorage
App lies to: Sedan
F ig. 2S8 Tether strap : proper ro utin g and mount ing
@
App lies to: Cabr iolet/Sportback
Fig . 259 Tether strap: proper rout ing and mount ing. ©
center ,@ outs ide
Installing the tether strap
Applies to: Sedan
.,. Release or deploy the tether strap on the child
restraint according to the child restraint manu­
facturer's instructions.
.. Guide the upper tether strap under the rear
head restraint (raise the head restraint if neces­
sary)
i=> fig . 258. For child restraints with V­
tether straps, a lways make sure that the head
restra int guide rods do not interfere with any
part of the top tether strap.
312
.. Tilt the recess flap up to expose the anchor
bracket .
.. Attach the tether strap anchorage hook into
the opening of the tether anchorage .
.,. Pull on the tether strap hook so that the spr ing
catch of the hook engages .
.,. Tighten the tether strap firmly following the
child restra int manufacturer's instructions.
Installing the tether strap
Applies to: Cabr iolet/Sportback
.,. Release or deploy the tether strap on the chi ld
restraint accord ing to the ch ild restraint manu­
facturer's instructions .
.,. Applies to: Sportback: Unlock the backrest and
fold it slightly forward
¢ page 65, Increasing
the cargo area
and locate the tether anchor be­
hind the rear seat backrest .
.. Applies to: Cabriolet: Unlock the backrest and
fold it slightly forward
i=> page 66, Pass­
through
and locate the tether anchor behind
the rear seat backrest .
.,. Guide the upper tether strap under the rear
head restraint (raise the head restraint if neces­
sary)
i=> fig. 259 . For child restraints with V­
tether straps, always make sure that the head
restraint g uide rods do not interfere with any
part of the top tether strap .
.,. Attach the tether strap anchorage hook into
the opening of the tether anchorage .
.. Pull on the tether strap hook so that the spring
catch of the hook is engaged .
.. Straighten the backrest back up into its upright
position and press it firmly into the locking
mechanism.
.,. Tighten the tether strap firmly following the
child restra int manufacturer's instructions.
Releasing the tether strap
.. Loosen the tension on the straps follow ing the
child restraint manufacturer's instructions.
.,. Depress the spr ing catch on the hook and re­
lease it from the anchorage .
Remember: Use tether straps to help keep the
c hild restraint firmly in place.

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A WARNING
Improper use of the L ATCH system can in­
c re as e th e risk of s erious p ersonal injury and
d eath in an acc ident.
-
-These anchors were developed only for child
sa fety sea ts using t he "LATCH" syst em.
- Never attac h other child safety seats, belts
or other objects to these anchors .
- Always make sure that you hear a click when
latch ing the seat in place. If you d o not hear
a click th e seat is no t se cure and could fly
forward and h it the interior of the vehicle,
o r be ejected from the vehicle.
A WARNING
Improper installation of child rest raints will
increase the r is k of injury in an ac cident.
- Always follow the child restra int system
man ufactu rer's inst ruct ions for proper in­
st al lation of the child res trai nt system and
proper use of tether straps as well as the
lower anchorages o r safety be lts in your ve ­
hicle.
- Always read and heed the important infor ­
mation and WARNINGS about child safety
and the installation of chi ld restraint sys­
tems
c> page 294, Child safety.
Using tether straps on rearward-facing
child restraints
Current ly, few rear-fac ing ch ild restraint systems
come w it h a tethe r. Please read and heed the
chi ld restraint system manufact urer 's ins truc ­
tions c arefully to de termine how to prope rly in ­
stall the tet her.
A WARNING
A child in a rearward -facing chi ld safety sea t
installed on the front passenger seat w ill be
ser iously injured and can be killed i f the front
airbag inflates
-even w ith an Advanced A irbag
System.
- The inflating a irbag w ill hit the child safety
seat or infant carrier with great force and
will smash the ch ild safety seat and chi ld
Ch ild s af ety
aga inst the backrest, center a rm rest, or
door.
- If you must install a rea rwa rd facing child
safety seat on the front passenger seat be­
cause of exceptional circumstances and the
PASSENGER AIR BAG OFF li ght does not
come on and stay on, immediately insta ll
the rea r-facing child safety seat in a rear
seating position and have the a irbag system
inspe cte d by your Au di de aler.
Additional information
Sources of information about child
restraints and their use
There are a number of sources of additional in­
fo rmat ion about c hild rest raint selection, instal­
l at ion and use :
N HTSA advises that the best ch ild safety seat is
the one that f its your child and fits in your veh i­
cle, and that you w ill use correct ly and consis­
tent ly.
Try
befo re yo u buy!
U.S. National Highway Traffic Safety Adminis­
trat ion
Tel.: 1-888-327-4236 (TTY: l-800-424-91S3)
http://www.nhtsa.gov
http:/ /www .safercar .gov
National SAFE KID S Campaign
Tel.: (202) 662-0600
http://www.sa fekids .org
Safety BeltSafe U .S.A .
Tel.: (800) 745-SAFE (English)
Tel.: (800) 747-SANO (Spanish) http://www.carseat .org
Transport Canada Info rmation Centre
Tel.: 1-800-333-0371 o r ca ll 1-613-998-8616 if
you are in the Ottawa area
http://www.tc.gc .ca/ eng/roadsafety/menu. htm
Audi Customer Relations
Tel.: (800) 822-2834
313

Checking and Filling
Checking and Filling Fuel
Gasoline grade
A pp lies to: ve hicles w ith gasoline engines
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
unleaded gasoline .
Audi recommends using TOP TIER Detergent Gas­
oline. Additional information on TOP TIER Deter­
gent Gasoline can be found on the official web­
site (www .toptiergas.com).
The individual gasoline grades are differentiated
by
octane ratings. This value is given with (R +M)/
2 equating to AKI or in RON.
The following headings match the corresponding
sticker in the fuel filler door .
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular/ MIN. RON 91 Regular
Use regular gasoline with minimum 87 AKI/
91 RON
i::>@ .
The max imum eng ine power is only reached if
p rem ium gasol ine 91 AKI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gaso line with minimum 91 AKI/
95 RON is recommended.
If premium gasoline is not available, you can also use regular gasoline 87 AKI/ 91 RON . However
this does reduce th e engine powe r slight ly.
0 Note
- Fillin g the tank just one time with leaded
fuel or other metallic additives will cause
permanent deter iorat ion to the catalytic
converter function.
- When gasoline with an octane rat ing that is
too low is used , h igh speeds or heavy engine
load can lead to engine damage.
314
(D Tips
The vehicle may be filled with fuel that has a
h igher octane rating than what is required by
the eng ine.
Blended gasoline
App lies to : vehicles wi th gaso line e ngi ne
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
You may use unleaded gasoline blended with al ­
cohol or MTBE (commonly referred to as oxygen­
ates) if the blended mixture meets the following
criteria:
Blend of gasoline methanol (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 than
2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
-Anti-knock index must be 87 AK I or h igher.
- Blend must not conta in more than 15% etha-
nol.
Blend of gasoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend must not contain more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iv ing . Dur­
i ng seasonal change-over, we suggest that you
fill up at busy gas stat ions where the seasonal
adjustment is more lik ely to be made in t ime.
@ Note
- Methanol fuels which do not meet these re­
quirements may cause corrosion and dam­
age to plastic and rubber components in the
fuel system.
- Do not u se fue ls that fail to meet the speci-
fied criteria in this chapter.
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-If you are 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 are 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 engine
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 TIER Detergent Gas­
oline. For more information on TOP TIER Deter­
gent Gasoline, please go to the official website
(www.toptiergas .com) .
After an extended period of using 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.
Checking and Filling
Refueling
Fueling
Applies to: vehicles without plug-in hybrid drive
Fig. 260 right rear side of the ve hicle: open ing the fuel
filler door
Fig. 261 Fuel filler door with attached fuel cap
Plug-in hybrid drive*: refer to the information un­
der ¢pag e 103, Refueling .
The fuel filler door is unlocked or locked by the
central locking system.
.,. Applies to: vehicles with plug-in hybrid drive:
note the information
on¢ page 103, Opening
the fuel filler door.
.,. Applies to : vehicles without plug-in hybrid
drive: to open, press on the left side of the fuel
filler
door¢ fig. 260 .
.. Unscrew the tank cap counterclockwise .
.,. Place the cap from above on the open fuel fille r
door ¢
fig. 261.
.,. Insert the fuel pump nozzle all the way into the
fuel filler neck.
.,. Begin fueling. Once the fuel pump nozzle 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.
.,.
315

Checking and Filling
~ 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.
~ Turn the fue l cap clockwise until you hear it
lock.
~ 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 fuel
filler door. For additional information on fuel,
see
Qpage 314 .
For the tank capacity in your vehicle, refer to the
Technical Data
Qpage 382.
To reduce the risk of fuel leaking out or vapors
escaping, make sure that the fuel tank is closed
correctly. Otherwise
thP ¢..iff indicator light will
turn on.
If the centra l locking system malfunctions, the
fuel filler door may emergency release
Qpage317.
A WARNING
An improper fueling procedure and improper
handling of fuel can lead to explosions, fires,
severe burns and other injuries.
-Do not smoke and keep away from open
flames.
-The ignition must be switched off when re­
fueling.
-Cell phones, radio devices and other radio
equipment should always be switched off
when refueling. Electromagnetic rays could cause sparks and start a fire.
-If you do not insert the fuel pump nozzle all
the way into the filler tube, then fuel can
leak out. Spilled fuel can ignite and start a
fire.
-Never get into the vehicle when refueling. If
there is an exceptional situation where the
vehicle must be entered, close the door and
touch a metal surface before touching the
fuel pump nozzle again. This will reduce the
risk of electrostatic discharge that can cause
flying sparks. Sparks can start a fire when
refueling.
316
A WARNING
We recommend that you do not transport any
fuel containers in the vehicle. Fuel could leak
out of the container and ignite, especially dur­
ing an accident. This can cause explosions,
fires and injuries.
-If you must transport fuel in a fuel contain­
er, please note the following:
-Always place a fuel container on the
ground before filling. Never fill the fuel
container with fuel while it is in or on the
vehicle. Electrostatic charge can occur
while refueling and the fuel vapors could
ignite .
-For fuel containers made of metal, the
fuel pump nozzle must always maintain
contact with the container to reduce the
risk of static charge.
-Insert the fuel pump nozzle as far as pos­
sible into the filler opening while refuel­
ing.
-Follow legal requirements when using,
storing and transporting fuel containers.
-Make sure that the fuel container meets
the industry standards, for example ANSI
or ASTM F852-86.
@ Note
-Remove fuel that has overflowed onto any
vehicle components immediately to reduce
the risk of damage to the vehicle.
-Never drive until the fuel tank is completely
empty. The irregular supply of fuel that re­
sults from that can cause engine misfires.
Uncombusted fuel will enter the exhaust
system and increase the risk of damage to
the catalytic converter.
@I For the sake of the environment
Do not overfill the fuel tank, otherwise fuel
can leak out when the vehicle is warming up.
© Tips
The fuel filler door on your vehicle does not lock if you lock the vehicle from the inside us-
ing the central locking switch.
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(D Tips
Fuel can age and may lead to problems when
starting . Audi recommends replacing the fuel
in your vehicle within six months.
Fuel filler door emergency release
If the central locking system is fault y, the fuel
filler door con be unlocked manually.
Applies to: version 1
F ig. 262 R ig ht rear l ugg age comp artment : eme rgency re ­
l ease (example )
Applies to: version 2
F ig . 26 3 Rea r of th e ve hicle: right rear se at fol ded forwa rd
Emergen cy relea se in the lug gage
compartment
Applies to: vers ion 1
The emergency opening mechanism is located
behind the right side trim pane l in the luggage
compar tment .
~ Remove the cover in the side panel.
~ Loosen the loop from the reta iner and then pull
on the loop carefully -arrow -
i=> fig. 262 i=> (D.
The filler door is released.
~ Press on the left side of the fuel fi ller door to
open it
i=> page 315, fig . 260.
P lug-in hybrid dr ive* : read and follow the inst ruc­
tions under
i=> page 103 .
Checking and Filling
Emergency relea se behind the rear seat
back rest
Appl ies to: version 2
The emergency releas e is located behind the
right rear seat.
T he pull cab le for the emergency re lease is locat­
ed on the cover .
~ To access the eme rgency re lease, fold the right
backrest forward
i=> page 66.
~ Remove the cover ~ from the tr im panel.
~ Carefully p ull the cover towa rd the center of
the vehicle at a 45° ang le
-arrow- ¢ fig. 263
i=>(D . The tab on the cover must point forward
in the direction you are pulling when pulling on
the cover .
~ Press on the left side of the fue l filler door to
open it
¢ page 315 , fig. 260.
(D Note
Only pull on the loop/cover until you fee l re­
s istance . Yo u will not hear it release . Other­
wise you could damage the emergency re­
l ease mechanism.
Catalytic converter
The vehicle may only be driven w ith un leaded
gasol ine, otherwise the cata lyti c converte r wi ll be
dest royed.
Never dr ive until the tank is completely empty .
The ir regu lar supply of fuel that resu lts from that
can cause eng ine misfires. Uncombusted fuel will
en ter the exhaust system , which c an cause over­
hea ting and damage to the cata lyti c conver ter .
A WARNING
The temperat ure o f the exhaust system is
high , both when driv ing and after stopping
the eng ine.
-
-Never touch the exhaust tail pipes once they
have become hot . This cou ld resu lt in burns.
- Do not par k your veh icle over flammable
materials such as grass or leaves because
the high temperature of the emissions con­
trol system could start a fire.
317

Checking and Filling
-Do not a pply u nder body protectant in t he
exhaust system area, because this increases
the risk of fire.
On Board Diagnostic
System (OBD)
The On-Board Diagnostic System monitors the
engine and transmission componen ts that influ ­
ence emissions.
F ig . 2 64 Footwell o n left s ide o f th e veh icle : co nn ect io n
port fo r the O n-Boa rd D iagno stic Syste m (OBD)
On-Board Diagnostic System
Engine data can be read out at the On-Board D i­
agnostic System connec tion po rt usi ng a special
tes ting device
~ fig . 264.
Indicator light
If thP ¢.j indicato r light bli nks or tu rns o n, there
is a malfunction that is causi ng poor emissions
qua lity and tha t could damage the ca talytic con­
ve rte r.
Drive s lowly to an author ized A udi dealer or au ­
thor ized Audi Se rvice Facility to have the ma l­
function co rrected .
The indicator light can also tur n on if t he fuel fill­
er cap is not closed
correct ly ~ page 315.
A WARNING
Incorrect use of the connection port fo r the
O n- Board Diag nostic System can ca use mal­
functions, which can then result in ac ciden ts
and ser ious injuries.
-Only allow a n author ized Audi dealer or au­
t h o riz e d Aud i Ser vice Faci lity to re ad o ut the
engi ne dat a.
318
-
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and fill ing fluids, there is a risk of in­
jury, scalding, accidents , and burns . For thi s
reason, follow all the w arnings and general
safety p re caut ion s prov ided in the following in­
formation. The engine compartment is a dan­
gerous are a.
~ .&,.
A WARNING
To reduce the ris k of injur ies, comp lete the
follo wing steps before opening t he hood:
- Tur n t he engine off.
- Switch the igni tio n off.
- Set the park ing brake.
-Move the selector lever into the P position.
-N ever open the hood when there is steam o r
coo lant escaping from t he engine compart­
ment, because there is a risk that yo u could
be burned . Wait unt il no steam or coolant is
escapi ng.
- L et the eng ine cool down .
-Keep children away from the eng ine com-
pa rtment .
-Never sp ill fluids on a hot engine . These flu­
ids (such as the anti-freezing agent con­
tained i n the coolant) ca n ignite .
- Avoid short c ircuits in the electrical system .
-When working in the engine compa rtment,
remember that the radiator fan can switch
on even if the ignition is switched off, wh ich
increases the r isk of persona l injury .
-Never open the cap on the coolant expan­
sion tan k when t he engine is warm . The
coo ling system is under p ressure.
-To protect your face, hands , and a rms from
hot steam or coolant , cover the cap wit h a
large cloth when op ening .
-Do not remove the engine cover under any
circumstances. This increases the r isk of
burns .