2015 AUDI S4 airbag off

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Safety belts . . . . . . . . . . . . . . . . . . . . . 139
Safety belt pretensioners . . . . . . . . . . 142
Airbag system . . . . . . . . . . . . . . . . . 144
Important things to know . . . . . . . . . . 144
Front airbags . . . . . . . . . . . . . . . . . . . . 148
Monitoring the Advanced Airbag
System . . . . . . . . . . . . . . . . . . . . . . . . . 154
Side airbags . . . . . . . . . . . . . . . . . . . . . 159
Side curtain airbags . . . . . . . . . . . . . . . 162
Child Safety . . . . . . . . . . . . . . . . . . . 165
Important things to know . . . . . . . . . . 165
Child safety seats ............ .. ... 171
Installing a child safety seat .. .. .. .. 175
L ATCH Lower anchorages and tether
for child ren. ............. .. .. .. .. 179
Additional Information
183
Vehicle operation . . . . . . . . . . . . . 184
Intelligent technology . . . . . . . . 184
Notice about data recorded by the
Event Data Recorder and vehicle
control modules . . . . . . . . . . . . . . . . . . 184
Electronic Stabili zation Control (ESC) . 185
Braking . . . . . . . . . . . . . . . . . . . . . . . . . 188
Electro -mechanical power assist,
dynamic steering . . . . . . . . . . . . . . . . . 190
Driving with your quattro . . . . . . . . . . 190
Energy management . . . . . . . . . . . . . . 191
Driving and environment . . . . . 193
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . . . . 193
Avoid damaging the vehicle. . . . . . . . . 193
Driving through water on roads . . . . . 193
Catalytic converter . . . . . . . . . . . . . . . . 194
Shutting down vehicle . . . . . . . . . . . . . 195
Operate your vehicle economically and minimize pollution . . . . . . . . . . . . . . . . 195
allroad: Driving offroad . . . . . . . . . . . . 197
Trailer towing . . . . . . . . . . . . . . . . . 199
Driving with a trailer . . . . . . . . . . . . . . 199
Trailer towing tips . . . . . . . . . . . . . . . . 201
Table of contents 3
Vehicle care . . . . . . . . . . . . . . . . . . .
202
Vehicle care and cleaning . . . . . 202
General information . . . . . . . . . . . . . . 202
Car washes . . . . . . . . . . . . . . . . . . . . . . 202
Cleaning and care information . . . . . . 203
Fuel supply and filling your
fuel tank . . . . . . . . . . . . . . . . . . . . . . .
207
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . 207
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . 209
Checking and filling . . . . . . . . . . . 212
Engine hood . . . . . . . . . . . . . . . . . . . . . 212
Engine compartment ... ......... .. 214
Engine oil . . . . . . . . . . . . . . . . . . . . . . . 214
Engine cooling system . . . . . . . . . . . . . 218
Brake fluid . . . . . . . . . . . . . . . . . . . . . . 221
Battery ... .. .... .. ............. .
222
Windshield/headlight* washer container . . . . . . . . . . . . . . . . . . . . . . . 225
Tires and wheels . . . . . . . . . . . . . . 227
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Tire pressure monitoring system 257
Do-it-yourself service . . . . . . . . . 260
What do I do now? . . . . . . . . . . . . 260
Vehicle tool kit . . . . . . . . . . . . . . . . . . . 260
Space-saving spare tire (compact
spare tire) . . . . . . . . . . . . . . . . . . . . . . . 260
Inflatable spare tire . . . . . . . . . . . . . . . 261
Inflating inflatable spare tire . . . . . . . 262
Changing a wheel. . . . . . . . . . . . . . . . . 263
Fuses and bulbs . . . . . . . . . . . . . . . 269
Fuses..... .... .... .............. 269
Bulbs. . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Emergency situations ... ... .. . 274
General... .... .................. 274
Starting by pushing or towing . . . . . . . 274
Starting with jumper cables . . . . . . . . 274
Use of jumper cables . . . . . . . . . . . . . . 275
Emergency towing with commercial
tow truck . . . . . . . . . . . . . . . . . . . . . . . 276
Lifting vehicle . . . . . . . . . . . . . . . . . . . . 278
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Opening and closing
Power locking system
General description
The power locking system locks or unlocks all
doors and the rear lid simultaneously.
You can lock and unlock the vehicle centrally.
You have the following choices:
- Remote master key~
page 34,
-Door handles with convenience key*
O?page 35,
-Lock cylinder at the dr iver's door
r=> page 3 7, or
- Power lo cking switc h inside
<:!>page 35.
Automatic locking
The automat ic locking feature locks all the ve­
hi cle doors and the rear lid when you drive
faster than 9 mph (15 km/h).
The car is un locked again once the ignition key
is removed . In addition, the veh icle can be un­
locked if the opening fu nction in the power
lock ing system sw itch or at one of the door
l eve rs is actuated. The Au to Lo ck function can
be turned o n and off in the rad io or
MMI*
r=> page 36 .
Additionally, in the event of a c rash with air­
bag deployment the doors are automatically
u nl ocked to a llow access to the veh icle.
Selective unlocking
When you lock the vehicle, the power locking
system w ill lock the doors and the rear lid.
W hen unlocking, you ca n set in the rad io or
M MI* whethe r
only the dr iver's door or t he
enti re ve hicle should be unlocked
r=> page 3 6.
Anti -theft alarm warning system
If the a nti-theft alarm warning system de­
tects a brea k-in into t he vehicle, acoust ic and
visua l wa rning sig na ls are triggered.
The an ti-theft warn ing system is act ivated au­
tomatically when you lock the vehicle .
It is de­
activated when u nlocking using the remote
Opening and clo sin g 31
key, w ith the mechan ica l key, and when you
switch on the ignition.
T he al arm a lso t urns off w hen t he a la rm cy cl e
has expired.
Turn signals
When you u nlock the ve hicle, the turn signals
flash twice, when yo u lock it once. If they do
not flash, one of the doo rs, the luggage com ­
partment lid or the hood is not lo cked or the
ignition is s till sw itched on.
Unint entionally locking yourself out
In the follow ing cases there safeg uards to
prevent you lock ing you r remote master key in
t h e ve hicl e:
- The vehicle does not loc k w ith the power
lock ing switc h
r=> page 35 if the drive r's
door is open.
- On veh icles with convenience key*, if the
most recently used master key is in the lug­
gage compartment, the rear lid is a utomat i­
cally u nlocked again after it is closed.
Do not lock your veh icle w ith the remote mas­
te r key o r convenience key* unt il all doors a nd
the rear lid a re closed. In this way you avoid
l ocking yo urse lf o ut accidentally.
_&. WARNING
-
-When you leave the veh icle, alw ays re ­
move the ignition key an d take it with
you. This wi ll prevent passengers (chil­
dren, for example) from acc identally be ­
ing locked in the vehicle should they acci­
dentally press the power locking switch in the front doors.
- Do not leave ch ildren inside the vehicle
unsuperv ised. In an emergency it would
be imposs ible to open the doors from
the o utside w itho ut the key.
(D Tips
- In the event of a crash with airbag de­
ployment all locked doors will be auto­
matically unlocked to give access to the
v ehicle occupants from the outside.

36 Openin g and clo sing
- You cannot open the doors or the rear lid
from the
outside (increased security, for ex­
amp le when you are stopped at a red light).
- The diodes in the power locking switch illu­
minate when all the doors are closed and
locked.
- Front doors: you can un lock and open the
doors from the inside by pu lling on the door
hand le.
- Rear doors: pu ll the door handle
once to re ­
lease the lock. Pull the hand le
again to open
the door.
- If you hav e a crash and the airbag is activat­
ed, the doors automatically un lock.
A WARNING
- The power locking sw itch works w ith the
ignition off and automatically locks the
entire vehicle when it is actuated .
- On a vehicle locked from the outs ide the
power locking system switch is inopera ­
t ive .
- Locked doors make it more difficult for
emergency workers to get into the vehi­
cle, which puts lives at risk . Do not leave
anyone beh ind in the vehicle, especially
children.
(D Tips
Your vehicle is locked automatically at a speed of
9 mph (15 km/h) (Auto Lock)
r:::;, page 31. You can un lock the veh icle
aga in using the opening f unction in the
power locking sys tem switch
@I .
Setting power locking
In the radio/MM!* , you can set which doors
t he central locking system will unlock.
~ Select : I CAR! funct ion button > Central lock­
ing .
Or
~ Select : ~I C-A-R~ ! fu nct ion but ton > Car sys tem s*
control b utton > Vehicle setting s > (Central
loc king )*.
Single door un locking/Unl ock door s* -
you
can specify which doo rs un lock when you open
the veh icle. -
Selecting
off /All and pressing the Iii button
on the remote control key unlocks the entire
veh icle.
- Selecting
on/Dri ver and pressing the Iii but­
ton on the remote control key once un locks
only the driver's door. In vehicles with a con­
ven ience key*, only the door whose handle
you pull w ill unlock. I f you press the
Iii but­
ton tw ice, the entire vehicle will unlock . If
you press the [@] button, the enti re vehicle
w ill always lock .
Luggage com p. loc k/Lock ext erior tr unk han­
dl e -
If you select On , you can no longer open
the luggage compartment using the rear lid
hand le
r:::;, page 38, fig. 2 7. In this case, the
r ear lid can be opened with the
l=I bu tton on
the master key
r:::;, page 34, fig. 22 or w ith the
l= I* button in the driver 's doo r r:::;,page 39,
fig .
29.
Fold mirrors * if you selec t On , the outs ide
mirrors will fo ld in au tomati cally when yo u
press the
Iii button on the remote cont ro l key
r:::;, page 52.
To ne when lo cking -if you selec t On, a tone
will sound when yo u lock t he vehicle.
Auto Lo ck /Loc k when dri ving -if you select
On, the enti re vehicle w ill lock automatically
whe n the speed reaches
9 mph (1 5 km/h).

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The leavin g home function i lluminates the
area around the vehicle when unlock ing it.
T his function can be switched on and off.
The
c o ming h om e and lea ving home func­
tions on ly operate when it is dark and the
light switch is in the AUTO posit ion
¢ page 49 , fig. 43 .
Auto headlight s*
When the light switch is in the A UTO
¢ page 49 position, the switch-on po int of the
lights can be changed in the automatic driving
light function.
Daytime running lights
USA m odel s:
You can switch the dayt ime run­
ni ng lights
on and o ff .
Canada mod els:
The function cannot be
turned off .
It is activated a utomat ica lly each
time the ignition is switched on.
Travel mode*
T he headlight beam is asymmetrical. This pro­
v ides stronger illum ination on the s ide of the
road on wh ich you are driving .
If you are driv­
i ng in a count ry that d rives on the opposite
side of the road from your own country, th is
will cau se glare for on coming dr ivers. To pre­
vent glare:
- Trave l mode must be selected in vehicles
with Xenon headlights*.
- In veh icles with halogen headlights, ce rtain
areas of the head light lenses must be cov­
ered w ith wate rproof adhesive covers that
prevent light from passing thro ugh. Fo r
more informat ion, please see your author ­
i z ed Audi dea ler or author ized repa ir faci lity .
(D Tips
When trave l mode is activated, a display in
the dr iver information system indicates
this each time you switch the ignit io n on.
Clear vi sion 51
Emergency flashers
Fig. 45 Center co n sole : em erge ncy flasher sw itc h
The emergency flashers makes other moto­
rists aware that you or your vehicle are in an
emergency situation .
.. Press the switch
Gil ¢ fig. 45 to turn the
emergency flashers on or off .
When the emergency f las hers are on, all four
turn s ignals b link at the same time. The turn
s ignal indicator lights .
1B in the instru ­
ment cluster, as well as the light in the emer­
gency flasher switch ~ blink likewise.
You can indicate a lane change or a tu rn w hen
the emergency flashers are switched on by us­
ing the turn signal lever. The emergency flash­
ers stop temporarily .
T he emergency flashers also work when the
ign ition is turned off .
T he emergency flashers w ill turn on a utomat i­
ca lly if yo u are in an accident where the airbag
has deployed.
(D Tips
You sho uld turn on the emergency f las hers
when:
- yo u are the last veh icle standing in a t raf ­
fic jam so that any other vehi cles coming
can see you, or whe n
- yo ur vehicle has bro ken down or you are
in an eme rgency s ituation, or when
- yo ur vehicle is be ing towed by a tow
truck or if you are tow ing another vehicle
beh ind you.

60 Seats and stor age
Seats and storage
General recommen­
dations
Why is your seat adjustment so
important?
The safety belts and the airbag system can
only provide maximum protection if the front
seats are correctly adjusted.
There are various ways of adjusting the front
seats to provide safe and comfortable support
for the driver and the front passenger. Adjust
you r seat prope rly so that :
- you can easily and quickly reach all the
switches and controls in the instrument
panel
-your body is properly supported thus reduc­
ing physical stress and fatigue
- the safety be lts and airbag system can offer
maximum protection ¢
page 144.
In the following sections, you will see exactly
how you can best adjust your seats .
There are special regulations and instructions
for installing a child safety seat on the front
passenger's seat. Always follow the informa­
tion regarding child safety provided in
¢ page 165, Child Safety.
WARNING
Refer to¢ page 126, Driving Safely for
important information, tips, suggestions
and warnings that you should read and fol­
low for your own safety and the safety of
your passengers.
A WARNING
, -
Incorrect seating position of the driver and
all other passengers can result in serious
personal injury .
- Always keep your feet on the floor when
the vehicle is in motion -never put your
feet on top of the instrument panel, out of the w indow or on top of the seat cush­
ion. This applies especially to the passen- gers
. If your seating position is incorrect,
you increase the risk of injury in the case
of sudden braking or an accident. If the
airbag inflates and the seating position is incorrect, this could result in personal
injury or even death.
- It is important for both the driver and front passenger to keep a distance of at
least 10 inches (25 cm) between them­
selves and the steering wheel and/or in­
strument panel.
If you're sitting any
closer than this, the airbag system can­
not protect you properly. In addition, the
front seats and head restraints must be
adjusted to your body height so that they
can give you maximum protection.
- Always try to keep as much distance as
possible between yourself and the steer­
ing wheel or instrument panel.
- Do not adjust the driver's or front pas­
senger 's seat while the vehicle is moving.
Your seat may move unexpectedly, caus­
ing sudden loss of veh icle control and
personal injury. If you adjust your seat
while the veh icle is moving, you are out
of posit ion.
Driver's seat
The correct seat position is important for safe
and relaxed driving .
We recommend that you adjust the driver's
seat in the following manner :
.. Adjust the seat in fore and aft direction so
that you can easily push the pedals to the
floor wh ile keeping your knees slightly bent
o &. in Why is your seat adjustment so im ­
portant? on page
60 .
.,. Adjust the seatback so that when you sit
w ith your back against the seatback , you can
still grasp the top of the steering wheel.
.. Applies to vehicles with adjustable head re­
straints: Adjust the head restraint so the up­
per edge is as even as possible with the top
of your head. If that is not possible, try to
adjust the head restraint so that it is as .,.

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close to this position as possible
c:>page 63.
A WARNING
Never place any objects in the driver's foot­
well. An object could get into the pedal
area and interfere with pedal function. In
case of sudden braking or an accident, you
would not be able to brake or accelerate .
Front passenger's seat
Always move the front passenger seat into
the rearmost position .
To avoid contact with the airbag while it is de­
ploying, do not sit any closer to the instru­
ment panel than necessary and always wear
the three-point safety belt provided adjusted
correctly . We recommend that you adjust the
passenger's seat in the following manner:
.,. Bring the backrest up to an (almost) upright
position.
Do not ride with the seat reclined .
"" Applies to vehicles with adjustable head re­
stra ints: Adjust the head restraint so the up­
per edge is as even as possible with the top
of your head. If that is not possible, try to
adjust the head restraint so that it is as
close to this position as possible
c:> page 63.
.,. Place your feet on the floor in front of the
passenger's seat .
Front seats
Manual seat adjustment
Appl ies to vehicles: with manu ally a djustable seats
Fig. 61 Fr ont seats: manual seat adjustment
Seats and storage 61
Controls
@-Moving the seat forward/back: pull the
lever and slide the seat
c:> A.
@ -Lengthening/shortening the upper thigh
support*: lift the handle. A spring moves the
support forward
c:> ,& .
@ -Adjust ing the angle* of the seat surface:
pull/press the lever
c:> ,& .
@) -Adjusting the lumbar support*: press the
button in the corresponding position
c:> ,& .
®-Moving the seat up/down: pull/press the
lever
c:> .&. .
@ -Adjusting the backrest angle : turn the ad­
justing wheel
c:> .&..
A WARNING ,--
-Never adjust the driver's or front pas­
senger's seat while the vehicle is moving.
If you do this while the veh icle is moving,
you will be out of position. Always adjust
the dr iver's or front passenger's seat
when the vehicle is not mov ing.
- Be careful when adjusting the seat
he ight. Check to see that no one is in the
way, or ser ious injury could result!
- To reduce the risk of injury in the case of
sudden braking or accident, front pas­
sengers must never rid e in a moving ve­
hicle with the backrest reclined. Safety
be lts and the airbag system on ly offer
maximum protection when the backrest
is upright and the safety belts are prop ­
erly positioned on the body. The more
the backrest is reclined, the greater the
risk of personal injury from an incorrect
seating position and improperly posi­
tioned safety belts.

62 Seats and storage
Power seat adjustment
App lies to vehicles: with power adjustable seats
Fig. 62 Front seats: powe r seat adjust men t
Contr ols
@ -Adj usting the lumbar support*: press the
button in the corresponding position ¢.&. .
@ -Moving the seat up/down: press the but­
ton up/down ¢.&. .
@ -Moving the seat forward/back: p ress the
button fo rward/back
¢ & .
©-Adjusting the backrest angle: press the
button fo rward/back
¢ & .
©-Raising/lowering* the head restraints:
press the button up/down ¢ .&. .
@ -Lengthening/shortening the upper thigh
support*: lift the handle. A spring moves the
front seat cushion forward¢& .
A WARNING
- Never adjust the d river's or front pas ­
senger 's seat while the veh icle is moving .
If you do this wh ile the vehicle is movi ng,
yo u will be out of posit ion. Always adjus t
the drive r's or front passenger's seat
when the vehicle is not moving .
- Be care ful when adjus ting the seat
heig ht. Check to see that no one is in the
way, o r serious injury could result!
- B eca use the sea ts can be elec trically ad­
justed with the ignit ion off or with the
ignition key removed, never leave chil­
dren unattended in the vehicle. Unsuper­
vised use of the electric seat adjust­ ments may cause serious injury. -
To reduce the risk of injury in the case of
sudden braking or accident, front pas­
sengers must never r ide in a moving ve­
hicle with the backrest reclined . Safety
be lts and the airbag system only offer
maximum protection when the backrest is upr ight and the safety belts are prop­
e rly po sit ioned on the body. The more
the backres t is reclined, the grea ter the
risk of persona l injury from an incorrect
seating position and imprope rly posi­
tioned safety belts.
Center armrest
The center armrest can be adjusted to several
levels .
Fig . 63 A rm rest betwee n the d rive r's/front passenger's
seats.
Ad ju sting the center armrest
"" To adjus t the ang le, raise the armrest from
the starting position
¢ fig. 63 detent by de­
t en t.
.,. To bring the armrest back into the starting
position, raise it out of the top detent and
fold it back down.
T he armrest can slide forwar d and back .

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-Passengers must always sit in an upright
position and never lean against or place
any part of their body too close to the
area where the airbags are located.
- Passengers who are unbelted, out of po­
sition or too close to the airbag can be
seriously injured by an airbag as it un ­
folds with great force in the blink of an
eye .
- Always make sure that there are at least
10 inches (25 cm) between the front
passenger's breastbone and the instru­
ment panel.
- Each passenger must always sit on a seat
of their own and properly fasten and
wear the safety belt belonging to that seat.
- Before driving, always adjust the front
passenger seat and head restraint prop­
erly.
- Always keep your feet on the floor in
front of the seat. Never rest them on the
seat, instrument panel, out of the win­
dow, etc. The airbag system and safety
belt will not be able to protect you prop­
erly and can even increase the risk of in­
jury in a crash .
- Never drive with the backrest reclined or
tilted far back! The farther the backrests
are tilted back, the greater the risk of in­
jury due to incorrect positioning of the
safety belt and improper seating posi­
tion.
- Children must always ride in child safety
seats <=:>
page 165 . Special precautions
apply when installing a child safety seat
on the front passenger seat <=:>
page 144.
Proper seating positions for passengers
in rear seats
Rear seat passengers must sit upright with
both feet on the floor consistent with their
physical size and be properly restrained
whenever the vehicle is in use.
To reduce the risk of injury caused by an incor­
rect seating position in the event of a sudden
braking maneuver or an accident, your pas-
Driving Safely 129
sengers on the rear bench seat must always
observe the following:
.,. Make sure that the seatback is securely
latched in the upright position <=:>
page 71.
.,. If there is a passenger on the rear center
seating position, slide the center head re­
straint upward at least to the next notch.
.,. Keep both feet flat in the footwell in front of
the rear seat .
.,. Fasten and wear safety belts properly
<=:> page 139 .
.,. Make sure that children are always properly
restrained in
a child restraint that is appro­
priate for their size and age
<=:> page 165.
& WARNING ~
Passengers who are improperly seated on
the rear seat can be seriously injured in a
crash.
- Each passenger must always sit on a seat
of their own and properly fasten and
wear the safety belt belonging to that seat.
- Safety belts only offer maximum protec­
tion when the seatback is securely latch­
ed in the upright position and the safety
belts are properly positioned on the
body. By not sitting upright, a rear seat
passenger increases the risk of personal
injury from improperly positioned safety
belts!
- Always adjust the head restraint properly
so that it can give maximum protection . •
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