2015 AUDI S4 ECU

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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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-never sit on the edge of the seat
- never sit sideways
- never lean out the w indow
- never put your feet out the window
- never put your feet on the instrument panel
- never rest your feet on the seat cushion or
back of the seat
- never ride in the footwe ll
- never ride in the cargo area
8_ WARNING
-
Improper seat ing positions increase the
r isk of serious personal injury and death
whenever a veh icle is being used .
- Always make sure that all vehicle occu­
pants stay in a proper seating pos ition
and are properly restra ined whenever the
vehicle is be ing used.
Pedal area
Pedals
The pedals must always be free to move and
must never be interfered with by a floor mat
or any other object.
M ake sure that all pedals move freely without
i nte rferen ce and that no thing prevents them
from re tu rning to the ir origin al posi tions.
Only use floor mats that leave the pedal area
free and can be secured w ith floor mat fasten­
e rs.
If a brake circuit fails, increased brake peda l
travel is required to br ing the vehicle to a full
stop.
8_ WARNING
Pedals that canno t move freely ca n cause
loss o f vehicle control a nd incr ease the r is k
o f serious injury.
- Never pl ace any ob jects in the d river's
f ootwell. An object could ge t into the
peda l area and inter fere with pedal func­
tion . In case of s udden braking or an ac­
c ident, you would not be able to brake or
accele rate!
Dr iving S afel y 131
-Always ma ke sure that nothing can fall
or move into the driver's footwel l.
Floor mats on the driver side
Always use floor mats that can be securely
attached to the floor mat fasteners and do
not interfere with the free movement of the
pedals.
.,. Make s ure t hat the f loor mats are properly
secured and cannot move and interfere with
the peda ls
c> &_ .
Use only f loor mats that leave the peda l area
u nobstructed and that are firmly secured so
that they cannot slip o ut of position. You can
obta in suitable floor mats from your author­
ized Audi dealer.
Floor mat faste ners are insta lled in your Audi.
Floor mats used in yo ur vehicle mus t be at­
tached to these fastene rs . P rope rly securing
the floor mats wi ll prevent them from sliding
into positions that could interfere with the
pedals or impair safe operat ion of your vehicle
in other ways.
8_ WARNING
Pedals that cannot move free ly can result
in a loss of vehicle control and increase the
risk of serious persona l injury.
- Always make sure that floor mats are
properly secured .
- Never p lace or install floor mats or other
f loor coverings in the vehicle that cannot
be prope rly secured in p lace to prevent
them from slipping and interfer ing with
the peda ls o r the a bility to cont ro l t he
veh icle.
- Never place or ins tall floor mats o r other
f loor coverings on top o f al ready in stal­
led floo r mats . Ad ditiona l floo r mats and
o ther cover ings will red uce the size of
the peda l area and interfere with the
pedals.
- Always prope rly reinstall and secure floo r
mats that have been taken out for clean­
ing .
•
•

132 Driving Safel y
-Always make sure that objects cannot
fall into the driver footwe ll wh ile the ve­
hicle is moving. Objects can become
trapped under the brake pedal and accel­
erator peda l causing a loss of veh icle
contro l.
Stowing luggage
Loading the luggage compartment
All luggage and other objects must be prop­
erly stowed and secur ed in the luggage com­
partment.
Fig. 141 S afe load positio nin g: place heavy objects as
l ow a nd a s far forward as pos sible.
Loose items in the luggage compartment can
shift suddenly, changing vehicle hand ling
characteristics. Loose items can also increase
the risk of serious personal injury in a sudden
vehicle maneuver or in a collision .
.,. Distribute the load even ly in the luggage
compartment .
.,. Always place and properly secure heavy
items in the luggage compartment as low
and as far forward as possible¢
fig. 141.
.,. Secure the load with the cargo net* or with
non -elastic straps secured to the tie-downs*
¢ page 73 ¢page 74.
.,. Make sure that the rea r seatback is secu rely
latched in place.
.&_ WARNING
Improperly stored luggage or other items
can fly throug h the vehicle ca using serious
personal inj ury in the event of hard brak­
ing or an accident. To help reduce the r isk
of serious personal injury: -
Always put objects, for example, luggage
or other heavy items in the luggage com ­
partment.
- Always secure objects in the luggage
compartment using the t ie-down eyelets
and suitable straps.
.&_ WARNING
-
Heavy loads w ill influence the way your ve­
hicle handles . To help reduce the risk of a
l oss of cont rol leading to serious personal
in jury:
- Always keep in mind when transporting
heavy objects, that a change in the cen­
ter of gravity can also cause changes in
veh icle handling :
- Always distribute the load as evenly as
possible.
- Place heavy objects as far forward in
the luggage compartment as possible .
- Never exceed the Gross Axle Weight Rat­
ing or the Gross Vehicle Weight Rating
specified on the safety compliance stick­
er on the left door jamb. Exceeding per­
miss ible weight standards can cause the
veh icle to slide and hand le differently.
- Please observe information on safe dr iv­
ing
c:> page 126.
.&_ WARNING
To help prevent poisonous exhaust gas
from being drawn into the vehicle, always
keep the rear lid closed while driving.
- Never transport objects larger than
those fitting completely into the luggage
a rea because the rear lid cannot be fully
closed.
- If you absolutely m ust dr ive with the rear
lid open, observe the following notes to
red uce the risk of poisoning:
- Close all windows,
- Close the sunroof,
- Open all air outlets in the instrument
panel,
- Switc h off the ai r rec irc ulat ion,
- Set the fresh air fan to the highest
speed.

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A WARNING
Always make sure that the doors, all win­dows, the sunroof and the rear lid are se ­
curely closed and locked to reduce the risk
of injury when the vehicle is not being
used.
- After closing the rear lid, always make
sure that it is properly closed and locked.
- Never leave your vehicle unattended es­
pecially with the rear lid left open . A
child could crawl into the vehicle through
the luggage compartment and close the
rear lid becoming trapped and unable to
get out. Being trapped in a vehicle can
lead to serious personal injury.
- Never let children play in or around the
vehicle .
- Never let passengers ride in the luggage
compartment. Vehicle occupants must
always be properly restrained in one of
the vehicle's seating positions.
(D Tips
- Air circulation helps to reduce window
fogging. Stale air escapes to the outside
through vents in the trim panel. Be sure
to keep these slots free and open .
- The tire pressure must correspond to the
load. The tire pressure is shown on the
tire pressure label. The tire pressure la­
bel is located on the driver's side B-pillar.
The tire pressure label lists the recom­
mended cold tire inflation pressures for
the vehicle at its maximum capacity
weight and the tires that were on your
vehicle at the time it was manufactured.
For recommended tire pressures for nor­
mal load conditions, please see chapter
c:>poge234.
Driving Safely 133
Tie-downs
App lies to veh icles : w ith tie -d owns
The luggage compartment is equipped with
four tie-downs to secure luggage and other
items .
Use the tie-downs to secure your cargo prop­
erly
c:> page 132 , Loading the luggage com ­
partment .
In a collision, the laws of physics mean that
even smaller i tems that are loose in the vehi­
cle will become heavy missiles that can cause
serious injury. Items in the vehicle possess en­
ergy which vary with vehicle speed and the
weight of the item. Vehicle speed is the most
significant factor.
For example, in a frontal collision at a speed
of 30 mph (48 km/h), the forces acting on a
10-lb (4.5 kg) object are about 20 times the
normal weight of the item . This means that
the weight of the item would suddenly be
about 200 lbs. (90 kg). You can imagine the
injuries that a 200 lbs. (90 kg) item flying
freely through the passenger compartment could cause in a collision like this.
A WARNING
----Weak, damaged or improper straps used
to secure items to tie-downs can fail dur­
ing hard braking or in a collision and cause
serious personal injury.
- Always use suitable mounting straps and
properly secure items to the tie-downs in
the luggage compartment to help pre­
vent items from shifting or flying for­
ward as dangerous missiles.
- When the rear seat backrest is folded
down, always use suitable mounting
straps and properly secure items to the
tie-downs in the luggage compartment
to help prevent items from flying for­
ward as dangerous missiles into the pas­
senger compartment .
- Never attach a child safety seat tether
strap to a tie-down . •
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Important safety instructions about
safety belts
Safety belts must always be correctly posi­
tioned across the strongest bones of your
body.
~ Always wear safety belts as illustrated and
described in this chapter.
~ Make sure that your safety belts are always
ready for use and are not damaged.
A WARNING
Not wearing safety belts or wearing them
improperly increases the risk of serious
personal injury and death. Safety belts can
work only when used correctly.
- Always fasten your safety be lts correctly
before driving off and make sure all pas­
sengers are correctly restrained.
- For maximum protection, safety belts must always be positioned properly on
the body .
- Never strap more than one person, in­
cluding small children, into any belt.
- Never place a safety belt over a child sit­ ting on your lap.
- Always keep feet in the footwell in front
of the seat while the vehicle is being d riv­
en .
- Never let any person ride with their feet
on the instrument panel or sticking out
the window or on the seat.
- Never remove a safety belt while the ve­
hicle is moving. Doing so will increase
your risk of be ing injured or killed.
- Never wear belts twisted.
- Never wear belts over rigid or breakable
objects in or on your clothing, such as
eye glasses, pens, keys, etc., as these may cause injury.
- Never allow safety belts to become dam­
aged by being caught in door or seat
hardware .
- Do not wear the shoulder part of the belt
under your arm or otherwise out of posi ­
tion . Safety belts
139
- Several layers of heavy clothing may in­
terfere with correct positioning of belts and reduce the overall effectiveness of
the system .
- Always keep belt buckles free of anything
that may prevent the buckle from latch­
ing securely .
- Never use comfort clips or devices that
create slack in the shoulder belt . Howev­
er, special clips may be requ ired for the
proper use of some child restraint sys­
tems .
- Torn or frayed safety belts can tear, and
damaged belt hardware can break in an
accident. Inspect belts regularly.
If web­
bing , bindings, buckles, or retractors are
damaged, have belts replaced by an au­
thorized Audi dealer.
- Safety belts that have been worn and
loaded in an accident must be replaced
with the correct replacement safety belt
by an authorized Audi dealer. Replace­
ment may be necessary even if damage
cannot be clearly seen. Anchorages that
were loaded must also be inspected.
- Never remove, modify, disassemble, or
try to repair the safety belts you rs elf .
- Always keep the belts clean. Dirty belts
may not work properly and can impair
the function of the inertia reel¢
ta­
ble Cleaning interior on page 204.
Safety belts
Fastening safety belts
Safety first -everybody buckle up!
Fig. 148 B elt buckle and to ngue o n the driver's se at

140 Safety belts
To provide maximum protection, safety belts must always be positioned correctly on the
wearer 's body .
.,. Adjust the front seat and head restraint
properly ¢
page 60, Seats and storage .
.,. Make sure the seatback of the rear seat
bench is in an upright position and securely
latched in place befo re using the belt¢.&, .
.,. Hold the belt by the tongue and pull it even-
ly across the chest and pelvis¢.&, .
.,. Insert the tongue into the correct buckle of
your seat until you hear it latch securely
¢fig . 148.
.,. Pull on the belt to make sure that it is se-
curely latched in the buckle .
Automatic safety belt retractors
Every safety belt is equipped with an automat­
ic belt retractor on the shoulder belt . This fea­
ture locks the belt when the belt is pulled out
fast, during hard braking and in an accident.
The belt may also lock when you drive up or
down a steep hill or through a sharp curve. During normal driving the belt lets you move
freely .
Safety belt pretensioners
The safety belts are equipped with a be lt pre­
tensioner that helps to tighten the safety belt
and remove slack when the pretensioner is ac ­
tivated. The function of the pretensioner is
monitored by a warning light¢
page 20 .
Convertible locking retractor
Every safety belt except the one on the driver
seat is equipped with a convertible locking re­
tractor that
must be used when the safety
belt is used to attach a child safety seat. Be
sure to read the important information about
this feature ¢
page 175.
A WARNING
Improperly positioned safety belts can
cause serious injury in an accident
¢ page 140, Safety belt position.
- Safety belts offer optimum protection
only when the seatback is upright and
-
belts are properly positioned on the
body.
- Always make sure that the rear seat
backrest to which the center rear safety
belt is attached is securely latched when­
ever the rear center safety belt is being
used. If the backrest is not securely
latched, the passenger w ill move for­
ward with the backrest during sudden
braking, in a sudden maneuver and espe­
cially in a crash .
- Never attach the safety belt to the buck­
le for another seat. Attaching the belt to
the wrong buckle will reduce safety belt
effectiveness and can cause serious per­
sonal injury.
- A passenger who is not properly restrain­
ed can be seriously injured by the safety
belt itself when it moves from the stron­
ger parts of the body into critical areas
like the abdomen .
- Always lock the convertible locking re­
tractor when you are securing a child
safety seat in the vehicle
c:> page 177.
Safety belt position
Correct belt position is the key to gett ing
maximum protection from safety belts.
Fig. 149 Safety bel t position
Standard features on your vehicle help you ad ­
just the position of the safety belt to match
your body size.
- belt height adjustment for the front seats,
- automatic belt height adjustment for the
rear seats .

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_& WARNING
Improperly positioned safety belts can
cause serious personal injury in an acci­
dent .
- The shoulder belt shou ld lie as close to
the center of the collar bone as poss ible
and should fit we ll on the body . Ho ld the
belt above the latch tongue and pull it
evenly across the chest so that it sits as
low as possible on the pe lvis and there is
no press ure on the abdomen. The be lt
should a lways f it snugly ¢
fig. 149. Pull
on the be lt to tighten if necessary.
- The lap belt portion of the safety be lt
must be positioned as low as possible
across pelvis and never over the abdo ­
me n. Make sure the be lt lies flat and
snug ¢
fig. 149. Pull on the belt to tight­
en if necessary .
- A loose-fitt ing safety be lt can cause seri­
ous in juries by sh ifting its position on
your body from the strong bones to more
vulnerab le, soft tissue and cause se rious
injury .
- Always read and heed all WARNINGS and
other important information
¢ page 139.
Pregnant women must also be correctly
restrained
The best way to protect the fetus is to make
sure tha t expectant mo thers always wear
saf ety b elts corr ectly -throughout th e pr eg­
nancy.
F ig. 150 S afety be lt pos it io n du ring pregnancy
Safety belts 141
To p rovide maximum protect ion, safety belts
must a lways be positioned correctly on the
wearer's body ¢
page 140.
.. Ad just the front sea t and head restraint cor­
rectly ¢
page 60 , Seats and storage.
.. Make sure the seatback of the rear seat
bench is in an upright position and secure ly
latched in place before using the belt.
.. Hold the belt by the tongue and pull it even­
ly across the chest and pelvis¢
fig. 150,
¢.,&. .
.,.. Insert the tongue into the correct buckle of
your seat unt il you hear it latch secure ly
¢ page 139, fig. 148 .
.,.. Pull on the belt to make sure that i t is se­
curely latched in the buck le .
A WARNING
-Improperly posit ioned safety be lts can
cause ser ious persona l injury in an acc i­
dent.
-
- E xpectant mothers must always wear the
lap portion of the safety belt as low as
possible across the pelvis and below the
round ing of the abdomen .
- Always read and heed all WARNINGS and
other important information
¢ .&. in Fas­
tening safety belts on page
140 .
Unfastening safety belts
Unbuckle t he safety bel t wi th the red release
bu tton only after the vehicle has stopped .
Fig. 151 R eleasing th e t ong ue fro m the buc kle
.,.. Push the red release button on the buckle
¢
fig. 151 . The belt tongue w ill spr ing out
of the buckle ¢
.&_. ..,..

1 70 Child Safety
range, and as far away from the airbag
as possible before installing the child
restraint.
- Always make sure that nothing pre­
vents the front passenger's seat from
being moved to the rearmost position
in its fore and aft adjustment range.
- Always make sure that the backrest is
in the upright position .
- Always buckle the child safety seat firmly
in place even if a child is not sitting in it.
A loose child safety seat can fly around
during a sudden stop or in a collision.
- Always read and heed all WARNINGS
whenever using a child restrained in ave­
hicle is being used
c::> page 136, Safety
belts,
c::> page 144, Airbag system and
c::> page 165, Child Safety.
.,&. WARNING
To reduce the risk of serious injury, make
sure that the
PASSENGER AIR BAG OFF
light comes on and stays on whenever a
child restraint is installed on the front pas­
senger seat and the ignition is switched
on.
- Take the child restraint off the front pas­
senger seat and install it properly at one of the rear seat positions if the
PASSEN­
GER AIR BAG OFF
light does not stay on.
- Have the airbag system inspected by
your authorized Audi dealer immediate­
ly.
Secure unused safety belts on the rear
seat
Fig. 161 Schematic overview : keep unused safety belts
away from chil dren in child sa fety seats. @· outer rear
safety belt,
®-center rea r safety belt
.
If a child safety seat is used on the rear bench,
especially with LATCH universal lower ancho­
rages, the unused safety belts
must be se­
cured so that the child in the child restraint
cannot reach them
c::> &.
-Guide the safety belt webbings @and @
behind the head restraint of the seat where
the child restra int is installed
c::> fig. 161 .
When doing so, do not engage the converti­
ble locking retractor! You should not hear a
"cl icking " sound when winding up the safety
belt.
- Le t the belt retractor wind up the safety belt
webbing.
.,&. WARNING
-A child in a child safety seat installed with
the LATCH lower anchorages or with the
standard safety belt or a child in a booster
seat on the rear seat could play with un­
used rear seat safety belts and become en­
tangled. This could cause the child serious personal injury and even death.
- Always secure unused rear seat safety
belts out of reach of children in child
seats such as by properly routing them
around the head restraint of the seat
where the child restraint is installed.
- Never activate the convertible locking re­
tractor when routing the safety belts around the head restraints.
- Never let anyone sit at the center rear
seating position if the center rear safety
belt has been routed around a rear head
restraint.