2015 AUDI S3 brake fluid

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Radiator fan
The radiator fan switches on automatically by
itself
An auxiliary electric radiator fan switches on
and off depending on coolan t temperature
and other vehicle operating conditions .
After you switch the engine off, the auxiliary
fan can continue running for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself<=>.& , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury nev­
er touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au­
tomatically when the engine coolant
reaches a certain temperature and will
continue to run until the coolant temper­
ature drops.
Brake fluid
Checking brake fluid level
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Fig. 165 Engine compa rtment: cove r on the brake fluid
rese rvoir
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS r::;, page 217 .
Checking and Filling 22 7
.. Read the brake fluid level from the brake
fluid reservoir <=>
fig. 165, <=> page 220,
fig. 159.
T he brake fluid level must be be­
tween the "MIN" and "MAX" markings.
The location of the brake fluid reservoir can be seen in the engine compartment illustration
<=>page 220.
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm.
If the brake fluid level falls considerably be­
low the "MIN" mark, the brake warning/indi­
cator light . (U.S. models)
I. (Canadian
models) will come on
c:> page 18 . Do not con­
tinue to operate the vehicle. The complete
brake system should be thoroughly checked
by an authorized Audi dealer or other quali­
fied facility and the cause corrected . If the
brake fluid level is too low, the brake warning/
indicator light will illuminate. Contact an au­
thorized Audi dealer
immediately.
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician.
Brake fluid absorbs moisture from the air . If
the water content in the brake fluid is too
high, corrosion in the brake system may result
after a period of time. The boiling point of the
brake fluid will also decrease considerably and
decrease braking performance.
Therefore, the brake fluid must be changed
every two years . Always use new brake fluid
which conforms to Federal Motor Vehicle
Standard "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficult to
reach, therefore, we recommend that you
have the brake fluid changed by your author­
ized
Audi dealer. Your dealer has the correct
tools, the right brake fluid and the know-how
to do this for you.
II>-

228 Check ing and F illin g
8_ WARNING
-Brake fluid is poiso nous. It must be sto r­
ed only in th e closed original container
out o f the reach of children!
- Brake fa ilure can result from old or inap­
propriate brake fluid. Observe these pre­
caut ions:
- Use only brake fluid that meets SAE specification
J 1703 and conforms to
Federal Motor Vehicle Standard 116.
Always check with your authorized Audi
dealer to make sure you are using the
correct brake flu id. The correct type of
brake fluid is also indicated on the
b rake fluid reservoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapor lock if
the brake fluid is left in the system too
l ong. This can serious ly affect the effi­
ciency of the bra kes as well as yo ur
safety . This could result in an acc ident.
@ Note
Brake flu id will damage the paint of your
veh icle.
@i For the sake of the environment
Because of the problem of proper d isposa l
of brake flu id as we ll as the special tools
requ ired and the ne cessary expert ise, we
recommend that you have the brake fluid
changed by your author ized Audi dealer .
Battery
General information
The battery in your Audi does not need any
maintena nce under
normal operating condi­
tions. Aud i recommends having the elect ro­
l yte level check by a n author ized Audi dealer
or author ized Audi Se rv ice Facili ty when there
are
high outside temperat ures or when driving
all day. The e lectrolyte level shou ld a lso be
checked each time the battery is charged
¢ page 230.
Have the batte ry checked when yo u bring your
vehicle in for an inspection . It is a good idea
to replace the battery if it is more than 5 years
o ld.
D uring certain types of airbag deployments,
the battery is disconnected from the vehicle electrical system for safety reasons¢
& in
Repair, care and disposal of the airbags on
page 160.
Di sconnecting the battery te rminals
Some vehicle functions (such as power win ­
dows) are not avai lable when the battery is
disconnected. These functions must be pro­
grammed after the battery is reconnected. To
avo id hav ing to do this, only disconnect the
battery from the vehicle electrical system
when that is necessary to perform repairs .
To reprogram the functions, proceed as fol­
lows:
Function Reprogramming
Power window one-¢ page 44, Correcting
touch up/down power window ma/-
function functions
Remote control key
If the vehicle does not
or r
eact to the key, it
convenience key must be synchronized
¢ page37
Dig ita l cl ock ¢page 10
ESC indicator light The indicator light
goes out after driving
a few meters
Not running the vehicle for long periods
of time
If you do not drive your vehicle fo r several
days or weeks, electrical components are
gradua lly reduced or switched off. This re­
duces e nergy consumption and maintains the
vehicle's ability to start over a long per iod of
time
¢ page 194. Some convenie nce func­
tions, such as interior lig hting or power seats *
may not work. These convenience functions
will be ava ilable again once you switch the ig-
nition on and start the engine. .,.

Tires and wheels
Tires
General notes
Tires may be the least appreci­
ated and most abused parts of
a motor vehicle .
Tires may be the least appreci­
ated and most abused parts of
a motor vehicle. Tires are, how­
ever, one of the most important
parts of a vehicle, particularly
considering the comparatively
small patch of rubber on each
tire that assures that all-impor­
tant contact between you, your
vehicle and the road.
Maintaining the correct tire
pressure, making sure that your
vehicle and its tires do not have
to carry more weight than they can safely handle, avoiding
damage from road hazards and
regularly inspecting tires for
damage including cuts, slashes
irregular wear and overall con­
dition are the most important
things that you can do to help avoid sudden tire failure includ­
ing tread separation and blow-
~ outs.
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Tires and wheels 233
Avoiding damage
If you have to drive over a curb
or similar obstacle, drive very
slowly and as close as possible
at a right angle to the curb.
Always keep chemicals includ­ ing grease, oil, gasoline and
brake fluid off the tires.
Inspect the tires regularly for
damage (cuts, cracks or blis­
ters, etc.). Remove any foreign
bodies embedded in the treads.
Storing tires
Mark tires when you remove
them to indicate the direction
of rotation. This ensures you to be able to mount them correct­
ly when you reinstall them.
When removed, the wheels or
tires should be stored in a cool, dry and preferably dark place.
Store tires in a vertical position if they are not mounted on
rims, in a horizontal position if
they are mounted on rims.
New tires
New tires have to be broken in
¢ _&. .
The tread depth of new tires
may vary , according to the type .,.
' •
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-The longer one tire is used in one location on the vehicle,
the more it wears at certain points; therefore, we recom­
mend that you follow the tire
manufacturer's suggested tire
rotation intervals.
-Vehicles with front-wheel drive experience more tread
wear on the front wheels com­ pared to all-wheel drive (quat­
tro).
-Please rotate tires as shown
¢ fig. 171.
-Extra care must be taken when
rotating direction-specific
tires
Q page 2 74.
Wheel balancing
The wheels on new vehicles are balanced. However, various sit­
uations during everyday driving
can cause them to become un­
balanced, resulting in vibra­
tions you can usually feel
through the steering wheel.
Unbalanced wheels must be re­
balanced to avoid excessive
wear on steering, suspension
and tires. A wheel must also be
rebalanced when a new tire is
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Tires and wheels 253
Incorrect wheel alignment
Incorrect wheel alignment can
cause excessive tire wear, im­pairing the safety of the vehi­
cle. If tires show excessive
wear, have the wheel alignment checked by an authorized Audi
dealer or qualified workshop.
All-wheel drive
Vehicles with quattro must al­
ways have tires of the same size, construction and tread
type. For details see
¢ page 193 .
.8, WARNING
Sudden tire failure can lead
to loss of control, a crash and serious personal injury!
-Never drive a vehicle when the tread on any tire is worn down to the wear indica­
tors.
-Worn tires are a safety haz­ ard, they do not grip well on
wet roads and increase your risk of "hydroplaning" and
loss of control.
-Always keep chemicals that can cause tire damage, such
-
as grease, oil, gasoline and
brake fluid away from tires.
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Interior fuse assignment
Fig. 188 Vehicle inter ior: fuse assignment
No . Equ ipment
Fl Engine components
F2 Seat adjustment
F 3 Hydraulic pump
cover (Cab-
riolet)
F4 MM controls, MMI-compo-
nents
FS Gateway
F 6 Anti-theft alarm system
Climate/heating control,
se-
lector lever (automatic
F7 transmission), park ing heat-
e r, rear window heater relay
coil
Diagnosis, electrical parking
F 8 brake
switch, light switch,
rain/light sensor, interior
light ing
F9 Steering
column switch
module
Fl0 Disp lay
Fll Reversible driver's
side safe-
ty belt tensioners
Fl2 MMI a rea
No .
Fl 3
Fl4
Fl5
Fl6
Fl7
Fl8
Fl9
F20
F23
F24
F25
Ampere
30 F26
10 F27
40 F28
F29
7.5
F31
s F32
5 F33
10 F34
10 F35
1 F36
5
25 F37
15/20
Fu se s and bulb s 2 77
Equipment Ampere
Adaptive dampers control
20
module
Climate control system 30
blower
Electronic steering column
10
lock
MM I area 7.5
Instrument cluster 5
Rearview camera 7.5
Conv ince key system control
7.5
module, tank system
Tank system 7.5
Ex terior lighting, heated
40
washer fluid nozzles
Panorama sunroof/ power
top control modu le, power 20/30
top latch (Cabriolet)
Door/dr iver's side doors (for
30
example power windows)
Seat heati ng 30
Sound-amplifier 30
Power top con trol module,
5
electron ics (Cabriolet)
Interior lights 7.5
Ex terior lighting
40
Driver assistance systems 7.5
Airbag 5
Button illumination, coils
for upper cab in heat ing relay
(Cabriolet) and socket relay,
7.5
interior sound, back-up ligh t
switch, temperature sensor, o il level sensor
Diagnosis, headlight range
control system, air quality
10
senso r, a utomat ic dimming
rearview mir ror
Right corner ing light/ right
15
LED-headlight
Left corner ing light/ left
15
LED -head light

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in P (Park position) and the park brake is
applied.
@ For the sake of the environment
-Changing the engine settings wi ll ad ­
versely affect emission levels . This is det­
rimenta l to the environment and increas­
es fue l cons umption .
- Always observe env ironmental regula­
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batter ies or worn out tires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo­
rate Material -spec ial handling may ap­
ply, see www .dtsc .ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restraint system includ ing
airb ag mod ules safety be lts wit h preten­
s ioners are scrapped, all applic able laws
and regulations must be observed. Your
a utho rized Audi dea le r is familiar with
these req uirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories .
Your vehicle incorporates the latest safety de ­
sig n features ensuring a high standard of ac­
tive and passive safety .
This sa fe ty could be compromised by non-ap­
proved changes to the veh icle . For this reason ,
if pa rts have to be replaced, p lease observe
the following points when install ing addition­
a l acc essories:
Approved Audi accessor ies and genuine Audi
pa rts are ava ilable from authorized Aud i deal­
ers .
Con sumer In formation 29 1
These dea le rs a lso have the necessary facili ­
ties, tools a nd trained specialists to install the
parts and accessories properly .
_& WARNING
Using the wrong spare parts or using non­
approved accessories can cause damage to
the vehicle and ser ious persona l injury .
- Use on ly accessories express ly approved
by Audi and ge nuine Audi spare parts
- These parts and accessories have been
specially designed to be used on your ve­
hicle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on air­
bag covers or w ithi n the airbag deploy­
ment zones. Do ing so wi ll increas e the
ris k of injury if a irbags are triggered in an
accide nt!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNIN GS
<:!) page 217.
(D Note
-If items other than ge nuine Audi spare
parts, add-on equipment and accessory
items are used o r if repair wo rk is no t
perf ormed ac cord ing to spe cified meth­
ods, this ca n resu lt in seve re dam age to
your vehicle's engine and bo dy (such as
co rrosion) an d adve rsely affect yo ur vehi­
cle 's warranty .
- If emergency repairs must be performe d
elsewhere , have the vehicle examine d by
an authorized A udi dealer as soon as
possible.
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.
Technical Modifications
Our guidelines must be complied with when
technical modifications are made.
A lways consult an authorized Audi dealer be-
-
fore start ing work on any modifications. ..,_
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29 4 Index
Audi magnetic ride
refer to Adaptive dampers 106
Aud i Service Repa ir Ma nuals and Litera -
ture .. .. .... ............. .. .. .. .. . 289
AUTO Automatic climate control system ..... 70
Automatic headlights ......... .. .... 46
Auto Lock (centra l locking system) .... .. 36
Automatic belt retractor ............. 138
Automatic climate control system
refer to Climate control system (auto-
mat ic) ............................ 70
Automatic headlights ................. 46
Automatic post-collision braking system 190
Automatic transmission .............. 109
Driving t ips . .................. .... 111
E mergency mode .................. 115
H ill descent control ................ 113
I gnition key safety in terlock .. .. .... .. 74
Kick -down . .... . ...... ... ... ..... . 114
L aunch Contro l-Program ... .. .. .. .. . 1 15
malfunction . .. . ...... ... .. .. .... . 110
Selector lever emergency release . . . . . 116
Selector lever lock . . . . . . . . . . . . . . . . . 110
Selector lever posit ions ............. 109
Shifting manually . . . . . . . . . . . . . . . . . . 114
Steer ing whee l w ith shift paddles ..... 114
S t ron ic .. .. ..... ........ .. .. .. .. . 109
tiptronic . .. ............. .. .. .. .. . 114
Automatic wipe/wash system . . . . . . . . . . 50
Auto Safety Hotline ..... ... .. .. .... . 133
Auxiliary heater (vehicles w ith d iese l en-
g ines) .. .. .... ............. ...... .. 73
Average consumption ................. 28
Average speed . . . . . . . . . . . . . . . . . . . . . . . 28
B
Battery . .. .. ............. .. .. .. .. . 228
Charge level ... ... .... ... .. .. .... . 194
Charging . . . . . . . . . . . . . . . . . . . . . 20, 230
Energy management . ... .. .. .. .. .. . 194
Important warnings ............... 229
Indicator light . . . . . . . . . . . . . . . . . . . . . 20
Jump starting ............ .. .. .. .. . 280
Locat ion ... ... .... ...... ... ... .. . 229
Replacing the battery .............. 231 Winter operation
.... .. ..... .... . .. 228
Working on the battery . ..... ... .. .. 229
Before driving ..... ............. .... 125
Blended gasoline .. ............. .... 210
B lower
automatic Climate control system . ... . 71
Manua l climate control system ... .. .. . 69
Boos t .............................. 29
Booster seats . . . . . . . . . . . . . . . . . . . . . . 179
Boost p ressure indicator . ..... ... .. .. . 29
Brake fluid Changi ng the b ra ke fluid ........ .. .. 22 7
Checking the b rake fluid level ........ 22 7
What is the co rrect b rake fluid level? .. 2 2 7
What shou ld I do if the brake fluid warn -
ing light comes on? ..... .... ... .. .. 227
B rakes ..... .... .. .. ........... .... 191
B rake assist system . ........... .. .. 189
B rake booster ..................... 191
Indicator light ... .. ... ..... ... .. .. . 25
New brake pads . .... .. ..... ... .. .. 191
Brake system Brake fluid .... .. ............. .... 22 7
B rake fluid specifications fo r refill and re -
placement .... .. ... .. ..... ... .. .. 227
B rake pads . ..... .. .... .... ... .. .. 197
Fl uid reservoir ... .. ... ..... ... .. .. 227
Worn brake pads symbo l . . . . . . . . . . . . . 22
B rak ing
Emergency brak ing funct ion ... .. .. .. . 82
Indicator light ... ... .. ..... .... . .. . 18
Parking brake .... .. ... ..... ... .. .. . 80
Starting on inclines ............ .... . 82
B reak-in per iod ..................... 197
Brake pads . ..... ... .. ..... ... .. .. 197
T ires ... .. .... .. .. ... ..... ... .. .. 197
Bu lbs ......... ... .. .............. . 279
C
California Proposition 65 Warn ing .... . 218
Battery specific .................. . 230
Capacities AdBl ue ... .... .. ............. .... 215
Fuel tank .. .. .. .. ............. .. .. 288
Washe r fluid reservo ir .. ....... ... .. 288
Care ... .. .. .... .. .. .... . ..... ... .. 205
also refer to Cleaning .......... .. .. 205