2015 AUDI S3 sensor

164 Airbag sys te m
caused by airbags when they inflate, particu ­
l ar ly when the occupant sitting next to it is
not seated proper ly. The s ide a irbag for the
front passenger seat can be used with proper­ ly installed child restraints. Please be sure to
read the important information and warnings
wheneve r us ing a ch ild restrai nt in a vehicle:
Safety belts~
page 135, Airbag system
~ page 144, Child safety ~ page 170.
The si de ai rbag system ba sically con sists of:
- the e lectronic control module and external
s ide impact sensors
- the two airbags located in the sides of the
front backrests and the two airbags* located
in the rear backrest
- the airbag warning light in the instrument
cluster.
The airbag system is monitored elect ronica lly
to make certain that it is functioning properly
at all times . Each time you switch on the igni­
tion, the airbag system indicator light will
come on for a few seconds (self diagnostics).
T he side airbag system supplements the safe­
ty belts and can help to reduce t he risk of in­
jury to the driver's, front and rear passenger 's
upper torso on the side of the vehicle that is
struck in a side collision . The airbag deploys
only in s ide impacts and o nly when the veh icle
acceleration registered by the control un it is
h igh enough . If this rate is below the refer­
ence va lue programmed into the control u nit,
the side airbags will not be triggered , even
though the ca r may be badly damaged as a re ­
sult of the collision . It is not possible to de­
f ine an a irbag tr igger ing range that will cover
every possible angle of impact, since the cir­
cumstances will vary considerably between
one co llision and another . Important factors
include, for examp le, the nature (hard or soft)
of the impacting object, the ang le of impact ,
ve hicl e speed, etc.
~ page 165, Impor tant
safety instructions on the side airbag system.
Aside from the ir normal safety function, safe­
ty belts work to he lp keep the driver or front
passenger in position in the event of a side collision so that the side airbags can provide
protection.
T he airbag system is
not a substi tute for you r
sa fety belt . Rather, it is part o f the overa ll oc­
c u pant restra int system in you r vehicle . A l­
ways remember that the side airbag system can only help to protect you if you are wearing
your safety belt and wearing it proper ly. This
is another reason why you should always wear
your safety belts, not just because the law re ­
quires you to do so~
page 135, General
notes.
I t is important to remember that w hile the
supplementa l side airbag system is designed
to reduce the likelihood of ser ious inju ries,
other injur ies, for example, swelling, bru is ing ,
fr iction burns and m ino r abrasions can a lso be
associated w ith dep loyed side airbags. Re­
member too, side a irbags w ill dep loy on ly
once and on ly in ce rtain kinds of accidents -
your safety belts a re always the re to offer pro­
tection .
Vehicle damage , repair costs or even the lack
of ve hicle damage are not necessarily an indi ­
cation of over-sensitive or failed airbag activa­
t ion. In some coll is ions, both front and side
airbags may inflate. Remember too, that air­
bags will deploy only once and only in certain
k inds of collisions -your safety belts are a l­
ways the re to offer p rotection in those acc i­
dents in which airbags are not supposed to
deploy or when they have a lready deployed .
The side airbag system will not deploy:
-when the ignit ion is switched off
- in side co llisions when the acceleration
measured by t he senso r is too low
- in front-end collisions
- in rear-end co llisions
- in rollove rs .
In some types of accidents the front airbags,
s ide cu rtain airbags and s ide a irbags may be
t rigge red togethe r.
Iii>

166 Airbag system
-Never use additional seat cushions that
cover the areas where the side airbags
deploy.
- Damage to the original seat covers or
to the seam in the area of the side air­
bag module must always be repaired
immediately by an authorized Audi
dealer.
- Objects between you and the airbag can
increase the risk of injury in an accident
by interfering with the way the airbag
unfolds or by being pushed into you as
the airbag inflates .
- Never place or attach accessories or
other objects (such as cup holders, tel­
ephone brackets , or even large, bulky
objects) on the doors, over or near the
area marked "AIRBAG" on the seat
backrests.
- Such objects and accessories can be ­
come dangerous projectiles and cause
injury if the supplemental side airbag
inflates .
- Never carry any objects or pets in the
deployment space between them and
the airbags or allow children or other
passengers to travel in this position.
- Always use the built-in coat hooks only
for lightweight clothing . Never leave any
heavy or sharp-edged objects in the
pockets that may interfere with side air­
bag deployment and can cause personal
injury in an accident.
- Always prevent the side airbags from be­
ing damaged by heavy objects knocking
against or hitting the sides of the seat­
backs.
- The airbag system can only be triggered once. If the airbag has been triggered,
the system must be replaced by an au­
thorized Audi dealership.
- Damage (cracks, deep scratches etc.) to
the original seat covers or to the seam in
the area of the side airbag module must
always be repaired immediately by an au­
thorized Audi dealer. - If children are seated improperly, their
risk of injury increases in the case of an
accident
Q page 170, Child Safety.
-Never attempt to modify any compo­
nents of the airbag system in any way .
- In a side collision, side airbags will not
function properly if sensors cannot cor­
rectly measure increasing air pressure in­
side the doors when air escapes through
larger, unclosed openings in the door
panel.
- Never drive with interior door trim pan­ els removed.
- Never drive when parts have been re­
moved from the inside door panel and
the openings they leave have not been
properly closed.
- Never drive when loudspeakers in the
doors have been removed unless the
speaker holes have been properly closed.
- Always make certain that openings are covered or filled if additional speakers
or other equipment is installed in the
inside door panels.
- Always have work on the doors done by
an authorized Audi dealer or qualified
workshop .
Side curtain airbags
Description of side curtain airbags
The side curtain airbag system can provide
supplemental protection to properly restrain­
ed occupants.
Fig. 137 S id e curta in a irbags, driv er's side: side cur ta in
airbag location ..,_

M N
0 > co ,....,
The inflatable side curtain airbags are located
on both sides of the interior above th e front
and rear side windows . T hey are identified by
the word "AIRBAG" on the windsh ield frame
and the center roof pillar.
The side curtain airbags contain features that prov ide ejection m itigation to he lp prevent ve­
h icle oc cupant s or parts of their bodies from
being comple tely or partially ejected from the
vehicle interior in certain side impacts and ve ­
h icle rollovers .
The s ide curtain airbag system supp lements
the safety belts and can help to reduce the risk of injury for occupa nts ' heads and upper
torso on the side of the veh icle that is struck
i n a side collision . T he side curta in a irbag in­
flates in s ide impacts and on ly w hen the veh i­
cle acce le rat ion reg iste red by the cont ro l u nit
is high enough . If this rate is below the refer ­
ence value programmed into t he control unit,
the side c urtain airbag will not be t riggered,
even though the car may be badly damaged as
a result of the collision. It is not possible to
define an airbag triggering range tha t will
cover every possible angle of impact, since the
circumstances will vary considerably between
one co llision and another. Important factors
i nclude, for examp le, the natu re (hard o r soft)
of the impacting object, the ang le o f impact ,
ve hicl e speed, et c.
q page 168, How sid e cur ­
tain airbags work .
Besides their normal safety f unction, safety
be lts work to help keep the dr iver or front
passenger in position in the event of a frontal
collision so that the side curtain airbags can provide protection.
The airbag system is not a s ubst itute for yo ur
safety be lt . Rathe r, it is pa rt of the overall oc ­
cupant restraint system in your vehicle . Al­
ways rememb er that the airbag system can
only help to protect you if you are wearing
your safety belt and wear ing it properly. Th is
is another reason why you shou ld always wear
your safety belts, not just because the law re ­
q uir es you to do so
q page 135, General
~ notes .
M l/'I ,....,
Airbag system 167
It is important to remembe r that wh ile the
side curtain airbag system is designed to help
reduce the likelihood of ser ious injuries, other
injur ies, for example, swelling, bru is ing, fric­
tion burns and minor abras ions can also be as­
sociated w ith these airbags upon deployment .
Remember too , these airbags will deploy only
once a nd only in ce rtain kinds of accide nts -
you r safety be lts a re a lways the re to offer p ro­
tection .
The side curtain airbag system basically
consists of:
-The e lectronic control module and external
side impact sensors
- The side curta in a irbags above the front and
rear s ide windows w it h ejection mitigation
featu res
- The a irbag indicator light in the instr ument
p ane l
The airbag system is mon itored e lectronically
to make ce rtain it is func tioning prope rly at all
times. Each time you sw itch on the ig nition,
the air bag system indicator light will come on
f o r a few se conds (sel f diagnos tic s) .
The side curtain airbag is not activat ed:
- if the ignition is sw itched off,
- in side collisions whe n the acceleration
measured by the sensor is too low,
- in rear-end collisions.
A WARNING
-Safety belts and the airbag system will
only provide pro tection when occupa nts
are in the proper seating position
q page 57, Front seats .
-If the ai rbag ind icator light q page 21
comes when the veh icle is being used,
have the system inspected imme diately
by your au thori zed A udi dealer.
It is pos­
sible tha t the airbag will inflate when i t
is not supposed to , or will not inflate
when it should .
•
•
•

194 Smart Technology
Winter tires By using all wheel drive, your vehicle has good
forward motion with standard tires in winter
cond itions. However, in winter we recommend
using winter or all season tires on
all four
wheels, because this will improve the braking
effect .
Snow chains
If there are snow chain laws, snow chains
must also be used on vehicles with all whee l
drive ¢
page 262, Snow chains .
Replacing tires
Fo r vehicles w ith all whee l dr ive , only wheels
with the same rolling circumference should be
used . Avoid whee ls with different tread
depths ¢
page 254.
Offroad vehicle?
Your Aud i is not an offroad vehicle -there is
not enough ground clearance. For this reason,
avoid difficult terrain. Refer to¢
page 287.
&_ WARNING
- Also, in vehicles with all whee l dr ive,
adapt yo ur driving style to the current
road and traffic conditions. Do not let
the increased safety provided tempt you
into taking risks.
- The braking ability of your vehicle is lim­
ited to the traction of the wheels . In this
way, it is not different from a two wheel
dr ive vehicle. Do not be tempted to ac­
celerate to a high speed when the road is
slippery this increases the risk of an acci­
dent .
- Note that on wet streets, the front
wheels can "hydroplane" if driving at
speeds that are too high. Unlike front
wheel drive vehicles, the engine does not
rev higher suddenly when the vehicle be­
gins hydroplan ing. For this reason, pay
attention to the road conditions regard­
less of your speed.
Energy management
The starting ability is optimized
The energy management system manages
the electrical energy distribution and optimiz ­
es the availability of electrical energy for
starting the engine.
When a vehicle with a conventional energy
system is not driven for a long time , the bat­
tery is drained by equ ipment (for example the
immobilizer). In certain circumstances, there
could may not be enough energy to start the
engine .
Your vehicle is equipped with an intel ligent
energy management system for d istr ibut ing
electricity. This s ignificantly improves the
sta rting ability and increases the battery life.
The energy management sy stem Is made up
of
battery diagnosis , idling current manage·
ment
and dynamic energy management .
Battery diagnosis
The battery d iagnosis determ ines the battery
charge leve l. The sensors determine the bat­
tery voltage, the battery current, and the bat­
tery temperature. The curren t cha rge leve l
and the performance of the battery are deter­
mined based on this.
Idling current management
The idling current management decreases the
energy used wh ile parked. With the engine
switched off, it manages the energy distribu­
tion to the different elect rical componen ts.
Date from battery diagnosis is taken into ac­
count for this.
Depending on the battery charge level, elec­
trical equip ment is switched off one item after
the o ther, to prevent the battery from drain­
ing and to retain the starting ability.
Dynamic energy management
While driving, dynamic energy management
distributes the appropriate amount of energy
to the e lectr ica l equipment.
It controls the
battery charge level so that more energy is ..,.

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

M N
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M 1.1"1 ,....,
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your veh icle has also been equ ipped with a
TPMS malfunction indicato r to indica te when
the system is not operating properly . The
TPMS malfunction indicator is combined with
the low tire pressure tellta le . When the sys­
tem detects a malfunct ion, the telltale will
flash for approximately one minute and then
remain cont inuous ly illuminated. This se ­
quence will continue upon subsequent vehicle
start-ups as long as the ma lfunction ex ists .
When the malfunct ion indicator is illuminat­
ed, the system may not be able to detect or
sig nal low t ire pressure as intended . TPMS
malfunct ions may occur for a variety of rea­
sons, including the installa tio n of replace­
ment or a lternate tires or whee ls on the veh i­
cle that prevent the TPMS from funct ion ing
properly. Always check the TPMS malfunction
tellta le after replacing one or more tires or
wheels on your veh icle to ensure that the re­
placement or alternate tires and wheels allow
the
TPMS to continue to function properly.
If the Tire Pressure Monitoring System
indicator appears
Applies to vehicles: with tire pressure monito ring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction .
Fig . 173 In strum ent clus te r: indica tor l igh t w ith mes ­
sage
Using the ABS sensors, the tire pressure moni­
toring system compares the t ire tread circum­
ference and vibration characteristics of the in­
d iv idual tires . If the pressure changes in one
Tire s an d wheel s 265
or more tires, this is indicated in the instru ­
ment cluster disp lay with an indicator light
ti] and a message c:::> fig . 17 3. If only one tire
is affected, the locat ion of that tire will be in­
dicated. The message turns off after a few mi­
nutes . You can d isplay the message aga in
c:::> page 2 9 .
The tire pressures must be stored in the menu
display again each time the pressures change
(sw itching between partial and full load pres ­
sure) or after chang ing or replacing a t ire on
your vehicle
c:::> page 266 . The t ire press ure
monitori ng system only monito rs the tire
pressure yo u have stored . Yo u can find the rec ­
ommended t ire press ures for your vehicle on
the labe l on the driver 's doo r pillar
c:::> page240 .
Tire t read circumference and vib rat ion charac­
teristics can change and cause a tire pressu re
warning if :
- I f the tire pressure in one or mo re tires is
t oo low,
- the t ire has structural damage,
-The tire was replaced or the t ire p ressure
changed and it was not stored again
c:::> page 266 .
- The spare tire is installed .
Indicator light s
ti]-Loss of pressure in at least one tire c:::> &.
Check the tires and replace or repair if neces­
sary. Check/correct the pressures of all four
tires . Then store the t ire pressures in the MMI
c:::> page 266 .
DI (T ire Pressure Monitoring System) T ir e
press ure: S ystem malfunct ion!. If Ill ap­
pears afte r switching the ignition on or while
driv ing and the
ti] indicator l ight in the in­
str ume nt cluster b links for app rox imately one
minute and then stays on , the re is system
malfunction. Try to s to re the co rrec t ti re pres­
s u res
c:::> page 266. If the indicator ligh t does
turn off or tu rns on again after a short period
of time, drive to yo ur authorized Aud i dea ler
or qualified repa ir facility immed iate ly to have
the malfunction corrected. .,..
•
•
•

....,
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"' ....,
"' rl
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

2 78 Fuses and bulbs
No . Equipment Ampere
Door/front passenger's side
F39 doors (for example, power 30
windows)
F40 Sockets 20
F41 Reversible front passenger·s
25
side safety belt tensioners
F42 Central locking components,
40
windshield washer system
F43 Headlights , light ing 30
F44 all wheel drive
15
F49 Starter, clutch sensor, head-
s light
relay coil
FS3 Rear window defogger
30
The power seats* are protected via
circuit
breakers
that automatically switch on after a
few seconds after the overload has been re­
duced.
@ Tips
Note that the following table was accurate
at the time of print ing and is subject to
change.
Left engine compartment fuse
assignment
Fig. 189 Engine compartment : fuse assignment
No.
Fl
F2
F3
F4
F5
F6
F7
F8
F9
FlO
Fll
Fl2
Fl3
Fl5 Fl6
Fl7
Fl8 Fl9
F20 F22
F23
F24
F3 1
F32
Equipment Ampere
ESC control modu le 40
ESC cont rol module 40
Engine control module (gas-
15/30
oline/diesel)
Engine cooling, engine com-
ponents, auxiliary heater 5/10
coil relay (1+2), secondary
air injection pump relay
Engine components, tank 7.5/10/
system 15
Brake light sensor
5
Engine components, water 7.5/10/
pumps 15
Oxygen sensor 10/15
Engine components, ex-
haust door, glow t ime con-
5/10/20
trol module, SU LEV valve
Fuel injectors, fuel control
15/20
module
Auxiliary heater heating ele-
40
ment2
Auxi lia ry heater heating ele-
40
ment 3
Automatic transmission con- 15/30
trol module
Horn 15
Ignit ion coil 5/20
ESC contro l module, engine
7.5
control module
T ermina l 30 (reference volt-
5
age)
Windshield wipers 30
Horn 10
Terminal SO diagnosis 5
Starter 30
Auxiliary heater heat ing ele-
40
ment 1
Vacuum pump 15
LED headlights 5