2015 AUDI S4 air condition

78 Warm and cold
Warm and cold Climate controls
Description
The climate control system warms, cools and
adds humidity to the air in the vehicle interior.
It is the most effect ive when the windows and
sunroof are closed . If there is a build-up of
heat inside the vehicle, ventilation can help to
speed up the cooling process.
I n all heating mode functions except
defrost,
the blower on ly switches to a higher speed
once the engine coolant has reached a certain
temperature.
Condensat ion from the cooling system can
drip and form a puddle of water under the ve­
hicle. This is normal and does not mean there
is a leak.
Pollutant filter
The pollutant filter removes pollutants s uch
as dust and pollen from the air.
The air pollutants filter must be changed at
the intervals spec ified in you r Warranty
&
Maintenance booklet, so that the air condi­
tioner can properly work.
If you drive your vehicle in an area with h igh
a ir po llution, the fi lter may need to be
changed more frequent ly than specified in
your Aud i Wa rranty
& Ma intenance booklet. If
in doubt, ask your authorized Audi Service Ad ­
visor for advice .
Key coded settings
The climate control settings are automat ically
stored and assigned to the remote control key
that is in use.
A WARNING
Reduced visibility is dangerous and can
cause accidents.
-
- For safe driving it is very important that
all windows be free of ice, snow and con­
densation.
- Comp letely familiarize yourself with the
proper use and function of the heating
and ventilation system and especially how to defog and defrost the windows.
- Never use the windshield wiper/washer
system in freez ing weather unt il you
have warmed the windshield first, using
the heating and ventilation system. The
washer solution may freeze on the wind­ shie ld and reduce visib ility.
(D Note
- If you suspect that the air conditioner
has been damaged, switch the system
off to avoid further damage and have it
inspected by a qualified dealership.
- Repairs to the Audi air conditioner re­
quire special technical know ledge and
special tools. Contact an authorized Aud i
dea ler fo r assistance.
@ For the sake of the environment
By reducing the amount of fuel you use,
you also reduce the amount of pollutants
emitted into the air.
(D Tips
-Keep the air intake s lots (in fro nt of the
w indshield) free from ice, snow and de ­
bris in order to maintain the proper func­
tion of the climate control system.
- T he energy management system may
switch the seat heating* or rear window
defroster off temporarily . These systems
are available again as soon as the energy
balance has been restored.
- Air escapes through vents under the rear
window. When placing items of clothing
on the luggage compartment cover, en­
sure that the openings are not covered.

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Approaching another obstacle will result in
the distance warning sounding at the normal
volume aga in.
Malfunction s in the s ystem
If a war ning tone is audible for about five sec­
onds when you turn on the ignit ion, there is a
mal function in the system. Have the problem
corrected by your authorized Audi dealer.
Keep t he sensors in the rear bumper clean and
free from ice so t hat the acoustic park assist
system can function properly.
A WARNING
- Sensors have dead spaces in which ob­
jects cannot be detected. Be especially
alert for small children and animals ,
since they are not always detected by the
sensors.
- The acoust ic park ing system is not a sub­
st itute for the d river's own caut io n and
alertness . Ultimate responsib ility always
remains with the driver during park ing
and simi lar maneuvers. Always watch
where you are dr iving .
- You should always adjust the volume and
frequency of the warning tones so that
yo u can easily hear the a co ustic distance
warning even if the radio is p laying, the
air-conditioner blower is on High or there
is a high leve l of outside noise.
- Check the settings whenever anyone
else has driven the vehicle before you.
- Remember that low obstacles for wh ich
-
a war ning has a lready been issued may
"dive" below the system's sensing zone if
the veh icle is being backed up closer . In
th is case, the warn ing sound shutt ing off
does
not i ndi cate that you have cleared
the obs tacle. Instead, impact is immi­
nent .
- Objec ts such as trai ler hitches, c hains,
narrow posts or fences covered by a thin
l ayer of paint may not a lways be detect -
Park a ssis t 119
ed by the sys tem . They can still damage
your vehicle without warning.
(0 Tips
Keep the senso rs in the rear b umpe r clean
and free of snow and ice so that the acous­
tic parking assist system can function proper ly .
Adjusting the warning tones
App lies to vehicles : wit h parking system (rear)
The warning tones con be adjusted in the
MM!*.
.,. Sele ct: !CAR ! func tion button > Parking sys­
tem. Or
.,. Select:
!CAR ! function button > Car sy stem s*
contro l button > Dri ver a ssi st> Parking a id.
- Rear volume -
rear sensor vo lume
- Rear frequency -rear senso r frequency
- Mu sic volume while parking -when the
pa rking system is sw itched on, the volume
of the active audio source is lowered.
The newly adjusted value is briefly heard from
the signal generato r. The sett ings are auto­
matically sto red and assigned to the master
key w ith remote contro l.

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A WARNING ,~
- Always make sure that the volume and
frequency of the warning tones is adjust­
ed so that you can easily hear the acous­
tic distance signal even if the radio is playing, the air-conditioner blower is on
High or there is a high level of outside
noise.
- Check the settings whenever someone
else has driven the vehicle before you.
@ Tips
-The warning tones can also be adjusted
directly from the rear view camera im­
age. Simply press the Settings* control
button.
- Changed settings are activated when
parking assist is switched on again.
Error messages
App lies to vehicles: with pa rk in g system (rea r, with rea r
view camera)
If a warning tone is audible for about five sec­
onds when you turn on the ignition, there is a
malfunction in the system . Have the problem
corrected by your authorized Audi dealer.
Keep the sensors in the rear bumper clean and
free from ice so that the acoustic park assist
system can function properly.
Park assist 125

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.. Sit properly in your seat and make sure that
your passengers do the same
¢ page 60,
Seats and storage.
.. Fasten your safety belt and wear it properly.
Also instruct your passengers to fasten their
safety belts properly¢
page 136 .
What impairs driving safety?
Safe driving is directly related to the condi­
tion of the vehicle , the driver as well as the
driver's ability to concentrate on the road
without being distracted .
The driver is responsible for the safety of the
vehicle and all of its occupants. If your ability
to drive is impaired, safety r isks for everybody
in the vehicle increase and you a lso become a
hazard to everyone else on the road
~ .&_.
Therefo re:
.. Do not let yourself be distracted by passen­
gers or by using a cellular telephone .
.. NEV ER dr ive when your driving ability is im­
paired (by medicat ions, alcohol, drugs, etc.).
.. Observe all traffic laws, rules of the road
and speed limits and plain common sense .
.. ALWAYS adjust your speed to road, traffic
and weather conditions .
.,. Take frequent breaks on long trips. Do not
drive for more than two hours at a stretch.
.. Do NOT drive when you are t ired, under
pressure or when you are stressed .
& WARNING
Impaired driving safety increases the risk
of serious personal injury and death when­
ever a veh icle is being used.
Driving Safely 12 7
Proper occupant
seating positions
Proper seating position for the driver
The proper driver seating position is impor­
tant for safe, relaxed driving.
Fig. 139 Co rrect seat ing pos ition
For your own safety and to reduce the risk of
injury in the event of an accident, we recom­
mend that you adjust the driver's seat to the
following position:
.. Adjust the driver's seat so that you can easi ­
ly push the pedals all the way to the floor
wh ile keeping your knee(s) slightly bent
¢&_ .
.. Adjust the angle of the seatback so that it is
in an upr ight position so that your back
comes in full contact w ith it when you drive.
.. Adjust the steering wheel so that th ere is a
distance of at least 10 inches (25 cm) be­
tween the steering wheel and yo ur breast
bone
~ fig. 139. If not possible, see your au ­
thorized Audi dealer about adaptive equip­
ment.
.. Adjust the steering wheel so that the steer­
ing wheel and airbag cover points at your
chest and not at your face .
.,. Grasp the top of the steer ing whee l with
your elbow(s) slightly bent .
.. App lies to veh icles with adjustable head re­
straints: Ad just 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 posit ion as possible.
.. Fasten and wear safety belts correctly
¢ page 139 . .,._

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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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148 Airbag system
-Never place additional items on the seat
that can increase the total weight regis­
tered by the weight-sensing mat and can
cause injury in a crash.
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat
occupants.
Fig. 153 L ocation of driver airbag: in steer ing wheel
Fig. 154 Locatio n of fro nt passenger's airbag: in the in ­
st rument panel
Your veh icle is equipped with an "Advanced
Airbag System" in compliance with United
States Federal Motor Vehicle Safety Standard (FMVSS) 208 as applicable at the time your
vehicle was manufactured. The safety belts
for the seats have "pretensioners" that help
to take slack out of the belt system. The pre­
tensioners are also activated by the electronic
control unit for the airbag system.
The front safety belts also have load limiters
to help reduce the forces applied to the body
in a crash.
The airbag for the driver is in the steering wheel hub
¢ fig. 153 and the airbag for the front
passenger is in the instrument panel
¢ fig. 154 . The general location of the airbags
is marked "AIRBAG".
There is a lot you need to know about the air­
bags in your vehicle . We urge you to read the
detailed information about airbags, safety
belts and child safety in this and the other
c h apters that make up the owner's literature.
Please be sure to heed the WARNINGS - they
are extremely important for your safety and
the safety of your passengers, especially in­
fants and small children.
_&. WARNING
Never rely on airbags alone for protection.
- Even when they deploy, airbags provide
only supplemental protect ion.
-Airbag work most effectively when used
with properly worn safety belts.
- Therefore, always wear your safety belts
and make sure that everybody in your ve­
h icle is properly restrained.
_&. WARNING
-A pe rson on the front passenger seat, es-
pecially infants and sma ll children, will re­
ceive serious injuries and can even be kil­
led by being too close to the airbag when
it inflates .
- Although the Advanced Airbag System in
your vehicle is designed to turn off the
front passenger airbag if an infant or a
small child is on the front passenger
seat, nobody can absolutely guarantee
that deployment under these special conditions is imposs ible in all conceiva­
ble situat ions that may happen during
the useful life of your vehicle.
- The Advanced Airbag System can deploy
in accordance with the "low risk" option
under the U.S. Federal Standard if a child
that is heavier than the typical one-year
old child is on the front passenger seat
and the other conditions for airbag de­
p loyment are met .

154 Airbag sys te m
- Occupants who are unbelte d, ou t of p osi­
t ion or too close to the air bag can be
seriously injured by an airbag as it un­
folds wi th grea t force i n the blink of an
ey e
~ pag e 145 .
A WARNING
-
A child in a rearward -faci ng child safety
s e at insta lled on the front passenger seat
w ill be seriously injured and can be k illed if
the front a irbag inflates -even with an Ad ­
vanced Airbag System.
- T he inflating a irbag will hit the child
safety seat or infant carrier with g reat
force and wi ll smash the chi ld safety seat
and child against the backrest , center
armrest, door or roof .
- Always install rear -facing child safety
seats on the rear seat.
- If you must install a rearward facing
child safety seat on the front passenger
seat because of exceptional circ umstan­
ces and the
PAS SENG ER AIR BAG OFF
light does not come on and stay on, im ·
med iately install the rear-facing child
safety seat in a rear seating position and
have the a irbag system inspected by you r
authori zed Audi dealer .
A WARNING
Objects between you and the a irbag will
increase the risk of inj ury in a crash by in­
terfering wi th the way the airbag unfolds
or by being pushed into yo u as the a irbag
inflates.
- Never hold th ings in your hands or on
yo ur lap when the vehicle is in use.
- Never transport items on or in the area
of the front passenge r seat . Objects
cou ld move into the area of the front air­
bags during braking or other s udden ma­
neuver and become dangerous projec­
t iles that can cause serious personal in­
jury if the airbags inflate .
- Never place or attach accessories or oth­
er objects (such as cupholders, te le­
phone brackets, la rge, heavy or b ulky ob -
-
jects) on the doors, over or near the area
marked "AIRBAG" on the steer ing whee l,
instr ument panel, seat backrests or be­
tween those areas and yourself . These
objects could cause in jury in a crash, es­
pecia lly when the airbags inflate .
- Never recline the front passenger 's seat
to transport objects . Items can a lso
move into the area of the s ide airbag or
the front a irbag du ring bra kin g or in a
sudden maneuver. Objects nea r the air­
bags can become projec tiles and cause
inj ury, partic ularly when the seat is re­
clined .
A WARNING ~
The fine dust created when airbags deploy
can cause breathing prob lems for people
with a history of asthma or other breath­ i ng cond itions .
- To reduce the risk of breath ing problems,
those with asthma or other respiratory conditions shou ld get fresh air right
away by getting o ut of the veh icle or
open ing windows or doors .
- If you are in a collision in which airbags
deploy, wash your hands and face with
mild soap and wate r before eating.
- Be ca reful not to get the dust into your
eyes, o r into any c uts or sc ratches .
- If the res id ue should get into your eyes ,
f lush them w ith wate r.
Monitoring the
Advanced Airbag
System
Airbag monitoring indicator light
T wo separate indicators monitor the function
of the Advanced Airbag System: the airbag
monitoring indicator light and the
PASSEN·
GER AIR BAG OFF
light.
T he Advanced A irbag System (including the
electron ic cont ro l unit , sensor circu its and sys­
tem wiring) is mon ito red continuously to
make su re that it is funct io ni ng properly

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Child Safety
Important things to know
Introduction
The rear seat is generally the safest place in a
collision .
The physical principles of what happens when
your veh icle is in a crash app ly also to chi ldren
q page 13 7, What happens to occupants not
wearing safety belts? .
But unlike adults their
muscles and bones are not fully developed. In
many respects children are at greater risk of
serious injury in crashes than adults.
Because children's bodies are not fully devel­
oped, they require restraint systems especial ­
l y designed for their size, weight, and body
structure. Many countries and all states of th e
United States and provinces of Canada have
laws requiring the use of approved child re­
straint systems for infants and small children .
In a frontal crash at a speed of 20 -35 mph
(30-56 km/h) the forces acting on a 13-pound
(6 kg) infant will be more than 20 times the
weight of the child . Th is means the weight of
the child would suddenly be more than 260 pounds (120 kg). Under these conditions,
only an appropriate chi ld restraint properly
used can reduce the risk of ser ious injury.
Ch ild restraints must be used properly to be
effective. Used improperly, they can increase
the risk of serious injury in an accident.
Consult the child safety seat manufacturer's
instructions to be sure the seat is right for
your chi ld's size
q page 168, Important safe­
ty instructions for using child safety seats .
Please be sure to read and heed all of the im­
portant information and WARNINGS about
child safety, Advanced Airbags, and the ins tal­
lation of child restraints in this chapter.
T here is a lot you need to know about the Ad ­
vanced Airbags in your vehicle and how they
work when infants and children in child re­
straints are on the front passenger seat . Be ­
cause of the large amount of important infor-
Child Sa fet y 165
mation, we cannot repeat it all here . We urge
you to read the detailed information in this
owner 's manual about airbags and the Ad ­
vanced Airbag System in your vehicle and the
very important information about transport­ ing children on the front passenger seat.
Please be sure to heed the WARNINGS -they
are extremely important for your safety and
the safety of your passengers, especially in­
fants and small children.
A WARNING
-Accident statistics have shown that chil­
dren are generally safer in the rear seat
area than in the front seating position.
Always restrain any child age 12 and un­
der in the rear.
- All vehicle occupants and especially chil­
dren must be restrained properly when­
ever riding in a vehicle. An unrestrained
or improperly restrained child could be injured by str iking the interior or by be­
ing ejected from the vehicle during a
sudden maneuver or impact. A n un re­
strained or improperly restrained ch ild is
a lso at greater risk of injury or death
through contact with an inflating airbag.
- A suitable child restraint properly instal­
led and used at one o f the rear seating
positions provides the highest degree of
protection for infants and small children
in most accident situations.
A WARNING
Children on the front seat of any car even
with Advanced Airbags can be seriously in­
jured or even killed when an a irbag in­
flates. A child in a rearward-facing child
safety seat installed on the front passen­
ger seat w ill be ser iously injured and can
be killed if the front airbag inflates.
- The inflating airbag will hit the ch ild
safety seat or infant carrier with great
force and will smash the child safety seat
and child against the backrest, center
armrest or door .
- Always install rearward-facing chi ld safe-
ty seats on the rear seat .
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