2015 AUDI S3 Owners Manual

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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 . .,.

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~ If there was no Ad Blue left in the tank and a
range of
O mi (0 km) was displayed in the
instrument cluster, switch the ignition on
for about 15 seconds before starting the en­ gine.
_& WARNING
Ad Blue can irritate the skin, eyes and res­piratory system. If there is contact with
the fluid, flush immediately with plenty of
water. Consult a physician if necessary.
(D Note
- Only use Ad Blue that conforms to the standard ISO 22241-1. Do not mix any
additives with the Ad Blue and do not di­lute it with water .
- Do not add Ad Blue to the diesel tank or
add diesel fuel to the Ad Blue tank. Mix­
ing can lead to damage to the engine
and the Ad Blue tank system. Warranty
does not cover damage caused by this.
- AdBlue attacks surfaces such as painted
vehicle components, plastic and carpet.
Remove the fluid as quickly as possible
with a damp cloth and plenty of cold wa­
ter. If the Ad Blue has already crystal­ lized, use warm water and a sponge .
AdBlue residue that is not removed will
crystallize and can damage the affected
surface .
- Do not store the refill bottle in the vehi­ cle. If it leaks, the escaping Ad Blue could
damage the vehicle interior.
- Do not allow AdBlue to come into con­
tact with clothing . If there is contact
with the fluid, flush immediately with
plenty of water.
@ Tips
- You can obtain refill bottles from an au­
thorized Audi dealer or authorized Audi
Service Facility.
- Follow the AdBlue manufacturer's in­
structions for use and storage.
Checking and Filling 217
Hood
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 filling fluids, there is a risk of
injury, scalding, accidents, and burns. For
this reason, follow all the following listed
warnings and general safety precautions.
The engine compartment is a dangerous
area.
c::> .&. .
_8 WARNING
To reduce the risk of injuries, complete the
following steps before opening the hood:
- Turn the engine off.
- Switch the ignition off.
- Set the parking brake.
- Place the selector lever in the P position.
- Let the engine cool down.
- Never open the hood when you see that
steam or coolant drips from the engine
compartment- there is a danger of burns! Wait until no steam or coolant
flows out .
- Keep children away from the engine com­
partment.
- Never spill fluids on a hot engine . These
fluids (such as the freeze protection con­
tained in the coolant) can catch fire .
- Avoid short circuits in the electrical sys­
tem, especially the battery .
- When working in the engine compart­
ment, remember that the radiator fan
can switch on even if the ignition is
switched off, which increases the risk of
personal injury.
- Never open the cap on the coolant ex­
pansion tank when the engine is warm.
The cooling system is under pressure.
- To protect your face, hands, and arms
from hot steam or coolant, cover the cap
with a large cloth when opening.
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218 Check ing and F illin g
- Do not remove the engine cover under
any circumstances. Th is increases the
risk of burns.
- If tests need to be performed with the
engine running, there is additional dan­
ger due to moving components (such as
the ribbed belt, generator and radiator
fan) and from the high voltage ign ition
system .
- Never reach into the rad iator fan . The
electric auxiliary fan is controlled by
tempe ratu re and can sw itch on suddenly.
- Pay attention to the following warn ings
listed wh en work on the fue l system or
on the electrical equipment is required.
- Always disconnect the vehicle battery
from the vehicle electrical system
- Do not smoke
- Never work near open flames
- Always have a working fire extinguisher
nearby
- To reduce the r isk of electric sho ck a nd
injury, never touch the following compo­
nents when the engine is running or is
being started:
- Ignition cable
- Other components in the electronic
h igh voltage ignition system
- If you must check or perform work on
the engine while it is running:
- Set the parking brake and place these­
lector lever in the P (park) posit ion
first.
- Always proceed with ext reme caut ion
so that clothing, jewelry or long hair do not become ca ugh t in the radiator fan,
fan belt o r other moving components
or do not come into contact with hot
components . Tie back long hair before
beginning work and do not wear cloth­
ing that can hang down into the en­
g ine.
- Limit your exposure to exhaust and
chemica ls to as short a time as poss ible
~ .&. -
A WARNING
Ca lifornia Proposition 6S Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certa in flu ids contained i n veh icles and
certain products o f componen t wear con­
tain or emit chemic als known to t he
State of California to ca use cancer and
birth defects or other reproductive ha rm .
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When filling fluids, be sure not to mix the
fl ui ds up . Otherwise severe ma lf u nctions
and engine damage w ill occur.
@ For the sake of the environment
You sho uld reg ularly chec k the ground un­
der your vehicle in order to detect leaks
quick ly. If there are visib le spots from oil
or other fluids, br ing your vehicle to an au­
thorized Audi dealer or qua lified repair fa­
cility to be checked .

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Opening the hood
The hood is released from the interior.
Fig. 157 Sect ion from the driver's footwe ll: release lev·
er
F ig. 158 Rocker switch un de r the hood
Make sure the wiper arms are not raised up
from the windshield. Otherwise the paint
could be damaged.
• With the driver's door open, pu ll the lever
below the instrument pane l in the direction
of the arrow
¢ fig. 157.
• Raise the hood slightly c;, &_ .
• Press the lever under the hood upward
c;, fig . 158. This releases the catch .
• Open the hood .
Che cking and Fillin g 219
A WARNING
Never open the hood when you see that
steam or coo lant drips from t he e ngine
compartment· there is a danger of burns!
Wait unti l no steam or coolant flows o ut.
- Never open the hood when you see that
steam or coo lant dr ips from the engine
compa rtment- the re is a dange r of
bu rns! Wai t until no ste am or coo lan t
flows o ut.
Closing the hood
• Push the hood down unti l the fo rce of the
strut is overcome .
• Then lower the hood and let it fall into the
engine hood latch -you do
not have to press
on the hood after it is locked.
c;, &_ .
A WARNING
If the hood is not latched complete ly, it
could fly up while you are dr iv ing and ob­
struct you r vis io n.
- For safety reasons, the hood must always
be closed secure ly wh ile d riving. Because
of this, always check the hood after clos­
ing it to make sure it is lat ched co rrectly.
When latched correc tly, the hood will be
f lush w ith the othe r body panels .
-If you no tic e th at t he hood is not latched
while you are dr iving, stop immedi ately
and close it, because this increases the
ris k of an accident .

220 Checking and Filling
Gasoline engine compartment overview
The most important check points.
Fig. 159 Typical locat ion of th e reservo ir, engine oi l d ipstick, and engine oil filler opening
CD Coolant expansion tank ( ... L) ... 226 The eng ine oi l filler opening and the d ipstick
@ Engine oil dipstick
...........
223 (items® and @)¢ fig. 159 may be located in
® E
ngine oi l filler open ing
('t=r.) 223 a different area depending on engine version.
© Brake fluid reservoir ((0) .. .. . 227 A WARNING
® Battery(+) under a cover 229 .. ... -
® Body ground point(-) Read
and following the WARNINGS before
checking anyth ing in the eng ine com part-
(j) Washer fluid reservoir(<$) . ... 232 ment ¢ page 217.
® Fuse housing ............. .. 276

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Checking and Fillin g 221
Diesel engine compartment overview
The most important check points .
Fig. 160 Typical locat ion of th e reservo ir, engine oil dip stick, and engine oil filler opening
(D Coolant expansion tank (J-) .. .
@
®
©
®
®
0
®
Eng ine oi l dipstick .......... .
E ng ine o il filler opening
('!=r.) .
Brake fluid reservoir ((0))
Battery(+) under a cover .....
B ody ground point(-)
Washer f luid reservoir(~)
F use housing .............. .
226
223
223
227
229
232
276
The engine oil filler opening and the dipstick
(items @ and @)¢
fig. 160 may be located in
a different area depending on eng ine ve rsion .
A WARNING
Read and following the WARN INGS before
checking anything in the engine compa rt­
ment
¢page 217.
Engine oil
Engine oil specifications
The engine oil used must conform to exact
specifications .
The service interva l disp lay in the instrument
cluster of yo ur vehicle will inform you when it
is time for a n oil change . We recomme nd that
you have your oil changed by an author ized
Audi Se rv ice Advisor .
If you have to top off the o il between oi l
c hanges, use the Audi o il quality sta ndard
spec ified in the tab le .
Audi oil quality standard
Gasoline
VW 502 00 or
engine vw 504 00
Diesel vw 507 00
eng ine
...

222 Check ing and F illin g
Using the proper engine o il is important for
the functionality and service life of the en­
g ine. Your engine was factory-filled with a
high-quality oil which can usua lly be used
throughout the entire year.
0 Note
Your L imited New Vehicle Warranty does
not cover damage or ma lfunctions due to
fai lure to follow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
Ma intenance booklet.
- Use only a high quality eng ine oil that ex­
pressly complies w ith the Audi o il quality
standard spec ified for your veh icle's en­
gine. Using any other oil can cause seri­
ous eng ine damage.
- Do not mix any lubricants o r othe r addi­
tives into the eng ine o il. Doing so can
ca use engine damage.
If you need to add oi l and there is no ne
availab le tha t mee ts the Audi oil qua lity
s tandard your engine requires, yo u may
add a tota l of no more than 0 .5 quart/liter
of a high-quality "synthetic"oil that meets
the following specifications.
- Vehicles with gaso line engine: ACEA A3
or API SM with a viscosity grade of
SAE 0W-30, SAE SW-30 or SAE SW-40.
- Vehicles with diesel engine: ACEA C3 or
API CF with a v iscosity grade of
SAE 0W-30 or SAE SW-30.
- For more information abo ut eng ine oil
that has been approved for your vehicle, please contact either your a uthorized
Audi dealer or Audi Customer Relations
at 1 (800) 822-2834 or visit our web site
at www.audiusa .com or
www.aud icanada.ca.
Engine oil consumption
The engine in your vehicle depends on on ade­
quate amount of oil to lubricate and cool all
of its moving ports .
In order to provide effective lubricat ion and
cooling of interna l eng ine components, all in­
ternal combust ion e ngines consume a certain
amount of oil. Oil consumpt ion va ries from
engi ne to engine and may change sig nifican tly
over the life of the engine. Typically, engines
with a spec ified break -in period (see
¢ page 197) consume more oil during the
break-in period than they cons ume after oi l
consumption has stabilized.
U nder normal cond itions, the rate o f oi l con ­
s u mption depends on the q uality and viscos ity
of the oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient
temperature and road conditions. Further fac­
tors are the amount of oil dilut ion from water
condensation or fue l residue a nd the oxida­
t ion level of the oil. As any eng ine is subject to
wea r as m ileage builds up, t he oil co nsump ­
t ion may increase over time until replacemen t
of worn components may be come necessary.
With a ll these variab les coming into play, no
standard rate of oil consumpt io n can be es­
tabl ished o r spe cified . There i s no alte rnative
to regu lar and frequent che ck ing of the o il lev ­
el , see
Note.
If the yellow engine oil leve l wa rning symbo l
Ill in the inst rument cl uste r lights up, you
sho uld check the oil leve l as soon as possib le
i=> page 223 . Top off the oil at your earliest
convenience
i=> page 223 .
A WARNING
--
Before you check anything in the engine
compartment, always read and heed a ll
WARNINGS¢ page 217.
(D Note
Driving wit h an insufficient o il level is like -
l y to cause severe damage to the engine.
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