2015 AUDI S3 light

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"Full load" on the label located on the driver's
side B-pillar (visible when the door is open).
Inflate trailer t ires to tra iler and t ire manufac­
turers' specifications.
Lights
Check to make sure both vehicle and trailer
lights are working properly.
Safety chains
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave enough slack in the chains to per­
mit turning corners. When you install safety
chains, make su re they wi ll not drag on the
road when you are driving.
The chains should cross under the tra ile r
tongue to prevent it from dropping in case of
separation from the hitch.
Driving instructions
Driving with a trailer always requires extra
care and consideration.
To obtain the best poss ible handling of vehicle
and traile r, p lease note the following:
~ Do not tow a loaded tra iler when your car it­
self is not loaded.
~ Be especia lly careful when passing other
vehicles.
~ Observe speed limits .
~ Do not drive at the maximum permissible
speed.
~ Always apply brakes early.
~ Monitor the temperature gauge.
Weight distribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight. If this cannot be avoided, drive at very
low speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con ­
trol. This means that the tow vehicle should be loaded to the extent poss ible and permiss i­
ble, wh ile keeping the trailer as light as poss i­
ble under the circumstances . Whenever possi-
Trailer towing 203
ble, transfer some cargo to the luggage com­
partment of the tow vehicle while observing
tongue load requirements and vehicle load ing
considerations.
Speed
T he higher the speed, the mo re difficult it be­
comes for the driver to control the rig. Do not
drive at the maximum permissib le speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -particularly
when going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest sign of swaying .
Do not
try to stop the swaying by accelerating.
Observe speed limits . In some areas, speeds
for vehicles towing trai lers are lower than for
regular vehicles .
Always apply brakes early. When driving
downhi ll, shift into a lower gear to use the en ­
gine braking effect to s low the vehicle. Use of
the brakes alone can cause them to overheat
and fail.
Coolant temperature
The coolant temperatu re gauge <=> page 12
must be observed carefu lly. The coolant tem ­
perature can increase if you drive on long in­
clines in a low gear at high engine speeds. Re­
duce your speed immediately if the LEDs in
the top part of the display turn on.
For more information about indicator lights,
refer to .<=>
page 20.
A WARNING
Anyone not properly restrained in a mov­
ing vehicle is at a much greater risk in an
accident. Never let anyone ride in your car
who is not properly wearing the restraints
provided by Audi.
Trailer towing tips
Important to know
Your vehicle handles d ifferently when towing
a trailer because of the additional weight and ..,.
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Care and cleaning
General information
Regular, proper care helps to maintain your
vehicle's val ue . It can also be a requirement
when submitting warranty claims for corro­
sion damage and paint defects on the body.
The necessary care products can be obtained
from your a uthorized Audi dea ler . Read and
follow the instructions for use on the packag­ ing.
A WARNING
- Us ing clean ing and care products incor­
rect ly can be dangerous to your hea lth .
- Always store cleaning and care products
out of reach of children to reduce the r isk
of po isoning.
@ For the sake of the environment
- Preferably use environmentally-friendly
products when buying cleaning agents.
- Do not d ispose of leftover cleaning and
care products with household trash.
-
Car washes
The longer that deposits such as insects, bird
droppings, tree sap or road sa lt rema in on the
veh icle, the more the surface can be dam­
aged . High tempe ratures such as those
caused by sunlight increase the damag ing ef­
fect .
Before washing, rinse off heavy depos its with
p lenty of water .
Stubborn depos its s uch as bird dropp ings or
tree sap are best removed with plenty of wa­
ter and a m icrof iber cloth.
A lso, wash the underside of your vehicle once
road salt stops be ing used for the season.
Pressure washers
When washing your veh icles w ith a pressure
washer, always fo llow the operating instr uc­
tions provided with the pressure washer. This is especially important in regard to the pres -
Care and cleanin g 205
sur e and sp raying distance. Do not aim the
spray direct ly at sea ls on side windows, doors,
the hood, the rear lid or the sunroof* or at
tires, rubber hoses, insulating material, sen­
sors* or camera lenses*. Keep a d istance of at
least 16 inches (40 cm) .
Do not remove snow and ice with a pressure
washer.
Never use rotary nozzles or h igh pressure noz­
zles .
T he wate r temperature m ust not be above
140
° F (60 °().
Automatic car washes
Spray off t he ve hicle before washing .
Make sure that the w indows and roof* are
closed and the winds hield wipers are off. Fol­
low instructions from the car wash operator,
especially if there are accessories attached to
you r vehicle .
If possible, use car washes that do not have
brushes .
Washing by hand
Clean t he ve hicle starting from the top and
working down us ing a soft sponge or cleaning
brush. Use solvent-free clean ing products .
Washing vehicles with matte finish paint
by hand
To avoid damaging the paint when washing,
first remove dust and large particles from
your vehicle. Insects, grease spots and finger­
pri nts are best removed w ith a spec ial cleane r
for matte finish paint .
Apply the product us ing a microfiber cloth. To
avo id damaging the paint surface, do not use
too much pressure.
Rinse the vehicle thoroughly with water. Then
clean using a neutral shampoo and a soft mi­
crofiber cloth.
Rinse the ve hic le thoroughly again and let it
air dry . Remove any water residue using a
shammy.
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206 Care and cleaning
_& WARNING
- Only wash the vehicle when the ignition
is off and follow the instructions from
the car wash operator to reduce the risk
of accidents.
- To reduce the risk of cuts, protect your­
self from sharp meta l components when
wash ing the underbody or the inside of
the wheel housings.
- After washing the vehicle, the braking ef­
fect may be de layed due to mo isture on
the brake rotors or ice in the winter. The
brakes must be dried first with a few
careful brake applicat ions .
@ Note
- If you wash t he vehicle in an automatic
ca r wash, you must fold the exterior m ir­
r o rs in to reduce the r isk of damage to
t h e m irrors. Power foldi ng exterior m ir­
r o rs* must on ly be folded in and o ut us­
i ng the p ower folding function.
- To prevent pa int damage, do not wash
t h e ve hicle in direc t sunli ght. -
To reduce the ris k of damage to the sur ­
face, do not use insect removing spong­
es, kitchen sponges or similar items.
- Matte finish painted veh icle compo­
nents:
- To reduce the risk of damage to the
surface, do not use polishi ng agen ts or
h a rd wax.
- Never use protect ive wax. It can de­
stroy the matte fi nish effec t.
- Do not place any stickers o r mag net ic
s igns on vehicle parts painted w ith
matte fi nish pa int. The paint cou ld be
d amaged when the sticke rs o r mag nets
ar e removed. @ For the sake of the environment
Only wash the ve hicl e in facilities spec ia lly
de signed for that purpose. This will red uce
the r is k of dirty w ater contam ina ted with
oi l from entering the sewer sys tem.
Cleaning and care information
When clea ning and ca rin g for individua l vehi­
cle components, refer to the fo llow ing tab les.
The informa tion con taine d there is s imp ly rec­
ommendations. Fo r quest ions or for compo -nents that ar
e not listed, refer to an author­
i z ed Audi dea ler. Also follow the in format io n
f o und in¢ ,&..
Exterior cleaning
Component Situation Solution
Wind shield wip-
Deposi ts ¢ page 51, Cleaning windshield wiper blades
er blade s
H eadlights /
Deposits Soft sponge with a m ild soap solutiona>
Tail lights
Sensors /
Deposits Sensors: soft cloth with a so lvent-free cleaning product
camera lenses Camera lenses: soft cloth with an alcohol-free cleaning
so lution
Snow/ ice Hand brush/solvent -free de -icing spray
Wheels Road sa lt Water
Brake d ust Acid-free special cleaning so lution
E x haust ta il Road sa lt Water, cleaning solut ion sui table fo r sta inless steel, if
pipes necessary

208 Care and cleaning
Component Situ ation Solution
Tex tile s,
Deposits adhering to Vacuum cleaner
art ifi cial l eather , the surface
Alcan ta ra Water-based depos- Absorbent cloth and m
ild soap so lution a>
its such as coffee,
tea, blood, etc.
Oil-based deposits Apply
a mild soap solut ion a>, blot away the dissolved oil
such as oil, make- or dye, treat afterward w ith water, if necessary
up, etc.
Special deposits Special stain remover, blot with absorbent material,
such as ink, nail pol-treat afterward with mild soap so lution, if necessary a)
ish, latex paint, shoe
polish, etc.
Natu ral leathe r Fresh stains Wool
cloth with a mi ld soap so lutiona >
Water-based depos- Fresh stains: absorbent cloth its such as coffee, Dr ied stains: stain remover suitable for leather
tea, blood, etc.
Oi l-based deposits Fresh stains: absorbent cloth and stain remover suitable
such as oil, make- for leather
up, etc . dried stains: Oil clean ing spray
Special deposits Spot remover suitable for leathe r
such as ink, nail po l-
ish, latex paint, shoe
polish, etc.
Ca re Regularly apply cond it io ni ng cream that protects from
light and penetrates into the mater ia l. Use spec ially-
co lored! conditioning cream, if necessary.
Carb on p art s Deposits clean th e same way as plastic parts
a) Mi ld soap solution: maximu m two tablespoons of neutral soap in 1 quart (l liter) of water
_& WARNING
The windsh ie ld may not be treated with
water-repelling windshield coating agents .
Unfavorab le conditions such as wetness,
darkness, or low sun can result in in­
creased glare. Wiper blade chatter is also
possible .
([) Note
-Headlight s/tail li ght s
-Never clean headlights or tail lights
w ith a dry cloth or sponge.
- Do not use any cleaning product that
conta ins alcohol, because they could
cause cracks to form.
-
- Whee ls
- Never use any pa int polish or other
abrasive materials.
- Damage to the protective layer on the
rims s uch as stone chips or scratches
must be repaired immediately.
- Sen sors/ cam era len ses
-Never use warm or hot water to re-
move snow or ice from the camera
lens. This could cause the lens to crack.
- Never use abrasive cleaning mater ials
or alcohol to clean the camera lens.
This could cause scratches and cracks.
-Door windo ws
-Remove snow and ice on windows and
exter ior mirrors with a plastic scrape r.

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To avoid scratches, move the scraper only in one direction and not back and
forth.
- Never remove snow or ice from door
windows and mirrors using warm or
hot water because this could cause
cracks to form.
- To avoid damage to the rear window
defogger, do not apply any stickers on
the heating wires on the inside of the
window.
- Decorative parts/trim
- Never use chrome care or cleaning
products.
-Paint
- To reduce the risk of scratches, the ve-
hicle must be free of dirt and dust be­
fore polishing or waxing.
- To prevent paint damage, do not polish
or wax the vehicle in direct sunlight.
- To reduce the risk of paint damage, do
not polish away rust spots.
- Remove cosmetics and sunscreen im­
mediately · these could damage the
paint.
- Displays
-To avoid scratches, do not use dry
cleaning methods on displays.
- Controls
- Make sure that no fluids enter the con-
trols, because this could cause dam­
age.
- Safety belts
- Do not remove the safety belts to clean
them.
- Never clean safety belts or their com­
ponents chemically or with corrosive
fluids or solvents and never allow sharp objects to come into contact
with the safety belts. This could cause damage to the belt webbing .
- If there is damage to the webbing, the
connections, the retractors or the buck ­
les, have them replaced by an author­
ized dealer .
-Textiles/artificial leather/Alcantara
Care and cleaning 209
- Never treat artificial leather/Alcantara
with leather care products, solvents,
floor polish, shoe polish, spot remove
or similar products.
- Have a specialist remove stubborn
stains to prevent damage.
- Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat.
- Objects with sharp edges such as zip­
pers, rivets on clothing or belts can
cause damage to the surface.
- Open hook and loop fasteners, for ex­
ample on clothing, can damage seat
covers. Make sure hook and loop fas­
teners are closed .
-Natural leather
- Never treat leather with solvents, floor
polish, shoe polish, spot remover or
similar products.
- Objects with sharp edges such as zip­
pers, rivets on clothing or belts can
cause damage to the surface.
-Never use steam cleaners, brushes,
hard sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry
the seat .
- To help prevent the leather from fad­
ing, do not leave the vehicle in direct
sunlight for long periods of time.
If
leaving the vehicle parked for long pe­
riods of time, you should cover the
leather to protect it from direct sun­
light.
(D Tips
- Insects are easier to remove from paint
that has been freshly waxed.
- Regular waxing can prevent rust spots
from forming.
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210 Checking and Filling
Checking and Filling
Gasoline
Fuel supply
Applies to vehicles: with gasoline engine
Using the right fuel helps keep the environ­
ment clean and prevents engine damage .
Fuel recommendation
The fuel recommended for your vehicle is un­
leaded premium
grade gasoline . Audi recom­
mends using TOP TIER Detergent Gasoline
with a minimum octane rating of91 AKI (95
RON) . For more information on TOP TIER De ­
tergent Gasol ine, please go to the official
website (www .toptiergas.com).
The recommended gasoline octane rating for
your engine can also be found on a label locat­
ed on the ins ide of the fuel filler flap. This rat­
ing may be specified as AKI or RON .
Your vehicle may also be operated using un­
leaded regular gasoline with a minimum oc ­
tane rating of 87 AKI/91 RON . However, using
87 AKI/91 RON octane fuel w ill slightly re­
duce engine performance.
Use unleaded gasoline only. Unleaded gaso­
line is available throughout the USA, Canada,
and in most European countries. We recom­
mend that you do not take your vehicle to
areas or countries where unleaded gasoline
may not be available.
For more information on refueling your vehi­
cle, see
~ page 212.
Octane rating
Octane rating ind icates a gasoline's ability to
res ist engine damaging "knock" caused by
premature ign ition and detonation . Therefore,
buying the correct grade of gasoline is very
important to help prevent possible engine
damage and a loss of engine performance.
Gasoline most commonly used in the United
States and Canada has the following octane
r atings that can usually be found on the filler
pump : - Premium Grade: 91
-96 AKI
- Regular Grade: 87 -90 AKI
Explanation of the abbreviations:
AKI= Anti Knock Index= (R+M)/2 = (RON
+MON)/2
RON= Research Octane Number
MON = Motor Octane Number .
@ Note
-Do not use any fuel w ith octane ratings
lower than 87 AKI or 91 RON otherwise
expensive engine damage w ill occur.
- Do
not use leaded gasoline. The use of
leaded gasoline will severely damage
your vehicle's catalytic converter and its
ability to control exhaust emissions.
Blended gasoline
Applies to vehicles: with gasoline engine
Use of gasoline containing alcohol or
MTBE (methyl tertiary butyl ether)
You may use unleaded gasoline blended with
alcohol or MTBE (commonly referred to as
oxygenates) if the blended mixture meets the
following criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti-knock index must be 87 AK I or higher.
- Blend must contain no more than 3% meth-
anol.
- Blend must contain more than 2% co-sol-
vents.
Blend of gasoline and ethanol (grain alcohol
or ethyl alcohol)
-Anti-knock index must be 87 AKI or higher.
- Blend must not contain more than 15%
ethanol.
Blend of gasoline and MTBE
-Anti-knoc k index must be 87 AK I or higher.
- Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline

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Selective catalytic reduction
General information
Applies to vehicles: with diesel e ngine
In vehicles with se lective cata lytic reduction, a
urea solut ion (Ad Blue) is injected into the ex­
haust system before a nitrogen oxide catalytic
converter to reduce nitrogen -emissions .
Ad Blue is the marketing name for Diese l Ex­
ha ust Fluid (DEF) .
The AdBlue is carried in a separa te tank in t he
vehicle . The AdBl ue usage accounts for ap­
proximately 0.5% to 1.2% of the diese l fuel
that is used .
When a message abo ut refil ling the Ad Blue
appears in the inst rume nt cl uste r dis play, you
must refi ll the Ad B lue yourse lf or have it refil­
l ed by an authorized Audi dealer or aut horized
Aud i Service Facility
Q page 216.
A WARNING
Failure to heed Ad Blue refill information in
the inst rume nt cluste r can p revent the
ve­
hicle from being started and driven . If the
veh icle cannot be driven and an eme rgency
ar ises, perso na l inju ry can occur.
- Always have the Ad Blue tank refilled well
before the tank r uns d ry.
(!) Tips
- The instrument cluster display indicates
the d istance remaining that ca n be dr iv ­
en
Q page 215. If the AdBlue tank is
complete ly empty, the engi ne will not
sta rt again after the ign ition is switched
o ff.
- Ad B lue is requ ired by law to operate this
vehicle.
Che cking and Fillin g 215
Indicators in the instrument cluster
d isplay
Appl ies to vehicles: with diesel engine
Th e display indicates if th e Ad Blue lev el is low
or if there is a system malfunction.
Fi g. 1 54 Ins trum ent cluster : indicator in the display
AdBlue level low
You w ill be informed if t he AdBlue in the ta nk
drops below a certain leve l.
Ad Blue /9 Please refill Ad B lu e. Range
1500 mi (2400 km)
T his ind icator appea rs whe n there is only
eno ugh Ad Bl ue left to d rive the distance i ndi­
cated in the driver information system. F ill
the Ad Blue .
AdBlue /9 Refill AdBlue! No re start in
600 mile s (1000 km )! See owner' s manual
This indicator appears when there is only
enough AdBlue left to drive the distance indi ­
cated in the dr iver information syst em. F ill
the Ad Blue. Otherwise the eng ine will not
star t again if you s top it o nce the dis tance in­
dicated has been drive n. As long as the
AdBlue /9 ind icator light is on, yo u can
check the remaining range in the trip comput­
er* .
Refill AdBlue! Engine start not
po ssible! See owner' s manual
This message appears w hen the Ad Blue tank
i s emp ty. Fill the AdB lue. Othe rw ise you w ill
not be able to sta rt the engine ag ain on ce you
stop it .
T he Ad Blu e mu st be refilled when the amount
i n the tank has rea ched t he minim um level
Q poge 216.

216 Checking and Filling
¢..ij Incorrect filling /sy stem malfunction
A message ap pears if the Ad Bl ue tank was fil­
l ed with a fluid other t han Ad B lue and the sys ­
tem has detected t hat the tank was fi lled in­
correctly, or if the re is a system malfunction .
Ad Blue/ Ad Blue: Sy stem fault! No re start
in 600 miles (1000 km ). See owner' s man­
ual.
This message appears whe n it is only poss ible
to drive the distance i ndi cated in the dr iver in­
formation system. Drive to the neares t au­
thorized A udi dealer or author ized A udi Se rv­
ice Facility to have the ma lfunction co rrected.
Otherwise the engine will not start again if
you stop it once the distance i nd icated has
been drive n.
AdBlue: system fault . Engine
start not possible! See owner 's manual
This message appears if the system has de ­
tected t hat the ta nk was fi lled incorrectly or
that the re is a ma lfunction . Drive immediate ly
to the nearest authorized A udi dealer or au­
thor ized Audi Serv ice Facility to have the ma l­
function corrected . Otherwise you will not be
ab le to start the engine aga in o nce you stop
it .
Filling the Ad Blue
App lies to vehicles: with selective cata lyt ic reduction
A special refill bottle must be used to fill the
AdBlue .
Fig. 155 R ig ht re ar s id e of th e v ehi cle: re mov ing the
Ad Blue cap
F ig . 1 56 AdBl ue f ille r tube: i nse rtin g the ref ill bottl e
The Ad Blue tank ope ning is located near the
di ese l ta nk open ing . A lways ad d 1 gallon (3.8
li te rs) of AdB lue ( two bottles). This is the min­
i mum amo unt req uired to ensure the system
de te ct s the refilling and to s tart the engine .
T he Ad Blue tank holds approximately
4 gal ­
lo ns
(1 5 liters) .
Opening the filler tube and adding
AdBlue
Req uirement : The request to add Ad Blue mus t
appea r in the instrument cluster disp lay.
" Switch th e ignit io n off.
.. Open the tank door¢
page 212.
.. Tur n the cap on the tank opening to the left
to remove
¢ fig . 155 .
.. Remove the cap from the ref ill bott le.
.. Posit ion the refill bottle on the filler tube
and tur n the bottle clockwise until it stops
turn ing (D ¢fig .156 .
" Press lightly aga inst the bottom of the bot­
tle @to empty it . Continue pressing the
bo ttom of the bottle unt il it is empty or un ­
t il f lu id stop s flow ing in to the ta nk.
" Turn the bottle to t he left w it h out pressing
on t he bot tom.
Closing the filler tube
" Tur n the Ad B lue cap to the right on the filler
t ube until the cap clicks into pla ce.
" Clo se the tank cover.
After filling
The vehicle must be driven. The system may
ta ke up to two m inutes to detect that the
AdBl ue has been f illed . .,.