2013 AUDI S4 heater

78 Warm and cold
switching rec irculat ion mode on when driving
throug h a t unnel or when sitting in traffic
c:::> &. .
The IAU TO I button or I@ FRON T I butt on
switches recircu lation mode off .
IAUTO I Switching automatic mode on
Automatic mode ma inta ins a constant tem­
perature inside the vehicle. Air temperature,
airflow and air distribution are controlled au­
tomatically.
Adjusting the temperature
Temperatures between 60 °F (+16 °C) and
84 °F ( +28 °C) can be set . Outside of this
range,
LO or HI will appea r in the climate con­
trol system disp lay. At both of these settings,
the climate control system runs continuously
at maximum cooling or heating power . There
is no temperature regu lation.
~ Adjusting the airflow
You can adjust the a irflow manually to su it
your needs . To have the airflow regulated au­
tomatically , press the
!AUTO ! button.
~ Adjusting the air distribution
You can manually select the ve nts where the
a ir will flow . T o have the air d istribution regu­
la ted automatically, press the
IAUTOI button .
~ Adjusting seat heating*
Pressing the button switches the seat heat ing
on at the highest sett ing (level 3) . The LEDs
indicate the tempe rature leve l. To reduce the
temperature, press the button again . To
switch the seat heating off , press the button
repeatedly until the LED turns off .
After 10 minutes , the seat heating automati­
cally switches from level 3 to leve l 2.
I@ FR ON T I Switch the defroster on/off
The windshield and s ide windows are defrost­
ed or cleared of condensation as quickly as
possible . The max imum amount of air flows
mainly from the vents below the windshield.
Recirculation mode switches off . Th e tempera­
ture is controlled automatically. T
he
!AUTO I button switches the defroster off.
l !iiil R EAR I Switching rear window heater
on/off
T he rea r window heater only operates when
the engine is running . It switches off auto­
matically after a few m inutes, depending on
the outside temperature .
T o prevent the rea r window heater from
switching off automatically, press and hold
the
l oo REAR I button for more than 2 seconds .
This remains stored until the ignition is
switched off.
Air vents
You can open and close the center and rear air
vents using the thumbwhee ls . T he levers ad ­
just the direction of the airflow from the
vents.
In veh icles with a 3-zone deluxe automatic cli­
mate control system*, you can adjust the air
temperature in the rear by turning the thumb­
whee l toward the red side to make it warmer
or toward the b lue s ide to make it cooler.
A WARNING
-- Do not use the recirculation for extended
periods of time . The windows could fog
up since no fresh air can enter the vehi­
cle . If the windows fog up, press the air
recir culation butto n aga in imm ediately
to switch off the air recirculation func­
tion or se lect defrost.
- I ndivid uals w ith reduced sensitivity to
pa in or temperature could develop burns
when using the seat heating function . To
red uce the risk of injury, these individu­
als shou ld not use seat heating.
(D Note
To avoid damage to the heating elements
in the seats, do not kneel on the seats or
place heavy loads on a small area of the
seat.

@ Tips
The seat heati ng only works when the seat
detects bo dy weight on it. P lacing objects
on the seat cou ld create enough we ight to
sw itch seat heat ing on.
Setup
The basic climate control settings can be ad­
justed in the radio or MM!*.
~ Select: I CAR I f u nction button > A/C control
button. Or
~ Se lect: I CARI f u nct ion button > Car sys -
tems *
control button > AC.
Automatic recirculation*
When switched on, automatic recirculation
contro ls the recirculation mode automatica lly.
If the windows fog up, press the
1 ~ FRONTI
button.
Synchronization*
When synchronization is sw itched on, the
same settings are applie d to both the drive r
a n d front passenger, except for the seat heat­
ing/ventilation *. Synchronization switches off
when you ad just the settings on the front pas­
senger's side.
You ca n also switc h synchronizat io n on by
press ing and ho lding the knob on the driver 's
side.
Supplementary heater
The supplementa ry heater warms the inter io r
of vehicles with flexib le fue l engines more
q uic kly. The supp lementary heater is control­
l ed automatically in the
Auto setting.
Warm and c old 79

220 Checking and filling
-To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood .
- Keep children away from the engine com ­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­
ant could spray out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- Do not remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:
- Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com­ partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever of automatic trans- mission to
"P" (Park); put manual
transmission in Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts . Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine .
- Minimize exposure to emission and
chemical hazards
~ /1. .
A WARNING
=
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam ­
age to vehicle systems will occur.
@) For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer.

-Never mount used tires on yo ur vehicle if
yo u are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
- If you notice unusual vibration or if the
vehicle pulls to one side when d riving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age .
(D Note
Please note that summe r and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight means the comb ined weight (in excess of
those sta ndard items which may be rep laced)
of au toma tic transmission, power steer ing ,
power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory-installed equip­
ment (whether installed or not) .
Aspect ratio
means the rat io o f the height to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improved steering re­
sponse and better overa ll handling on dry
pavement .
Bead
means the part of the t ire t hat is made o f
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead .
Cord means the strands forming the plies in the
tire.
Tire s an d wheel s 235
typica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
dec rease the e lasticity of summer t ires,
which affects tract ion and brak ing ability.
If summer t ires are used i n very co ld tem ­
peratures, cracks ca n form o n the tread
bars , res ulting in perma nen t tire damage
that can cause loud driving noise and un­
bala nced ti re s. Audi i s not respon sible for
th is type of damage .
Cold tire inflation pressure
means the t ire p ress ure recommended by t he
vehicle manufacture r fo r a tire o f a des ignated
s ize t hat has not bee n driven for more than a
coup le o f miles (k ilometers) at low speeds in
the three hour period before the tire press ure
is m easured or adjusted.
Curb weight
me ans the we ight of a motor ve hicle with
st andard equipmen t incl ud ing the max imum
capacity of fuel, oi l, and coolant, air condi ­
tioning and additional weig ht of optiona l
equipment.
Extra load tire
means a t ire design to oper ate a t higher load s
and at higher inflation pressures than the cor­
responding standa rd tire . Extra load tires may
be identified as "XL", "x l", "EXTRA LOAD", o r
"RF" on the sidewal l.
Gross Axle Weight Rating ("GAWR")
me ans the load-ca rry ing capac ity of a single
axle system , measured at the tire -ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
the ve hicl e. .,..
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•

--No. Consumer Amps
I a
Gateway (Databus diagnos-
5 tic interface)
I
9 Supplementary heater
Fuse panel ® (brown )
1 CD/DVD playe r
2
Wi-Fi
3 MMI/Radio
4 Instrument cluster
5 Gateway (instrument cluster
control module)
6 Ignition lock
7 Light switch
8
Climate cont
rol system
blower
9 Steering column lock
10 Climate control system
11 Termina
l 30 diagnostic con-
nector
-
12 Steering column switch
module
Right luggage compartment fuse
assignment
5
5
5
5/20
5
5
5
5
40
5
10
10
5
F ig . 2 12 R igh t lu ggage compar tmen t: fu se pan el w ith
pla stic cl ip
-
Fu se s and bulb s 267
No . Consumer Amps
Fuse panel @ (blac k)
Luggage compartment lid
1 control module (all
road) /
30/10
Power top control module
(Cabriolet)
Trailer con trol modu le or re-
2 tractable rear spoiler (RS 5 15
Coupe)
3 Trailer control module 20
4 Trailer contro l modu le 20
5 Electromechanical parking
5
brake
6 E lectron ic damping con trol 15
7
Electromechanical parking
30
brake
8 R ear exterior lighting 30
9 quattro sport
35
10 Rear exterior lighting
30
11 Vehicle electrical system
20
con trol module
12 Term inal 30
5
Fuse panel © (brown )
1 Luggage compartment lid
30
control module (allroad)
-.
2 12-volt
socket, cigarette
20
lighter
3 DCDC converte
r path 1 40
4 DCDC converter path
2, DSP
30
amplifie r, radio
6
Right upper cabin heating
30
(Cabriolet)
7
Electromechanical parking
30
brake
R ig ht front door (window
9 regulator, central locking,
30
mirror, switch, lighting)
10 L
eft upper cabin heating
30
(Cabriole t)
Two-door models : rear r ight
window regu lator, Four-door
11 models : rear right door
30
(w indow regulato r, ce ntra l
l ock ing, switch , lighti ng)

268 Fuses and bulbs
--No. Consumer Amps
12 Cell phone prep 5
-
Fuse panel© (black)
1 Right front seat heating 15
4 MMI 7,5
5
Radio 5
6 Rear view camera 5
7
Rear window heater (all·
30 road)
8 Rear Seat Entertainment 5
Bulbs
Replacing bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for you.
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in many cases, other parts of the car must first
be removed before you are able to get to the
bu lb. Thi s applies especially to the light bu lbs
in the front of your car which you can only
reach through the engine compartment .
Sheet metal and bulb holders can have sharp
edges that can cause ser ious cuts, parts must
be correctly taken apart and then properly put
back together to help prevent breakage of
parts and long term damage from water that
can enter housings that have not been proper·
ly resealed.
F or your safety, we recommend that you have
your author ized Audi dealer replace any bulbs
for you, since your dealer has the proper tools,
the correct bu lbs and the expertise.
Ga s discharge lamps (Xenon lights}*:
Due to the high electrical vo ltage, have the
bu lbs rep laced by a qualified technician.
H eadlights with Xenon l ight are identified by
the high voltage sticker.
A WARNING
Changing Xenon lamps without the neces­
sary equipment can cause serious personal
in jury.
- Bulbs are pressurized and can explode
when being changed. Potential risk of in­
jury!
- On vehicles equipped with gas discharge
bulbs (Xenon light)* life-threatening in­
juries can result from improper handling
of the high-voltage portions of such
lamps!
- Only your authorized Audi dealer or a
qualified workshop should change the
bu lbs in gas discharge lamps. There are
pa rts with sharp edges on the openings
and on the bulb holders that can cause
serious cuts. If you are uncertain about
what to do, have the work performed by
an author ized Audi dealer or other quali­
fied workshop. Ser ious personal injury
may result from improperly performed
work.
(D Tips
- If you st ill prefer to replace the light
bulbs yourself, be aware that the engine
compartment is a hazardous area to
work in
9 page 213, Engine compart­
ment
9 Lr:,. .
-It is best to ask your authorized Audi
dealer whenever you want to change a
bulb.

_______________________________ ___:I~n ~d ~e:.::x 287
Changin g engine oi l
Chass is 225
U ndercoat ing ............ .... .. .. . 208
Checking
Eng ine coolant level ........ . .. .. .. .
226
Checking tire pressure .............. . 241
Ch ild restraints
D anger of usin g child restraints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . .
146
Where can I get additional information
about child restraints and their use? ..
184
Child restraint system anchors . .. ... .. 180
Ch ild safety .. ............. .... .. ... 166
Convertible locking retractor . . . . . . . . . 176
Important safety instructions for using
ch ild safety seats .... ... .. .. .. .. .. .
169
Impo rtant th ings to know when driv in g
wi th children ............ .... .. ...
166
Insta lling a chi ld res traint using the
L A TCH system ............ .. .. .. .. .
18 1
Mounting and releasing the ancho rage
hook .... .. .. ............. .. .. ...
18 1
Tether anchors . . . . . . . . . . . . . . . . . . . . 182
Tether straps . . . . . . . . . . . . . . . . . . . . . 182
Child safety loc ks
Power windows .......... .. .. .. ....
42
Rear doors ... ........... .. .. ...... 42
Child safety seats .......... .... .. .. . 172
Booster seats ................ .. .. . 17 4
Convertible child seats .... .. .. .. .. .
173
Convertible locking retractor .. .. .. .. . 176
Danger of using child restra ints in the
front seat . . . . . . . . . . . . . . . . . . . . . . . .
146
How do I properly install a child safety
seat in my vehicle? ........ .. .. .. .. .
169
Infant seats . . . . . . . . . . . . . . . . . . . . . . 172
Installing ............ ...... .... .. 176
LATC H system ......... ...... .... .. 18 1
Saf ety inst ruc tions ........ .. .. .. .. . 169
Unused safety belts on the rear seat 17 1
Ch ild seats
L ower ancho rages ........... .. ....
18 1
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . 63
Cleaning
Alcantara® (syn thetic suede) .. .. .. .. .
212
En gine compartment .............. . 213
Exhaust tail pipes ............... .. . 209
Fabr ics and fabric coverings ......... 209
Instrument panel ... . .......... .. .. 210
Interior ... .. .. .. .. . .. .......... .. 209
Leather . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Matte finish paint ................. 204
MMI display/controls ... ......... ... 209
Plastic and vinyl .. .. . .. .. .. ... ... .. 206
Plastic parts ..... .. .. .. .. ......... 210
Safety belts ... .. .. . .............. 21 2
Trim strips .. .. .. .... ........... .. 206
Cleaning and protection . .. .......... . 202
Climate controls ..... . .. .......... .. . 76
Climate control system
Au tom atic recir culat ion ......... .. .. .
79
Supplementary heater ............... 79
synchronizing . . . . . . . . . . . . . . . . . . . . . . 79
Clock .. ... ... .. .... .. .. ...... ... .. . 12
Closing
Power w indows ................... .
42
Sliding/tilting sunroof ............... 44
Sunshade ....... .. . .. ......... ... . 44
Closing/opening
at the lock cylinder .. ........... .... .
38
by remote control ............. .. .. . 35
with the centra l locking sw itch ........
36
with the conven ience key . .......... .. 36
Cold tire inflation pressure .......... .. 238
Coming home ... .. .... ........... .. . 48
Compact spare tire .................. 256
also refer to Spare tire ....... ... .. .. 256
Compartments . . . . . . . . . . . . . . . . . . . . . . 66
Compass in the mirror ... ......... ... . 56
Compliance . . . . . . . . . . . . . . . . . . . . . . . . 283
Consumer Information . . . . . . . . . . 135, 280
Contacting NHTSA .... .. ......... ... 135
Convenience key
Ind icator lights .. ................. .
84
Starting engine (START ENGINE STOP
button) . .. .. .. .. .. . .. .. ..... ..... .
83
Stopping the engine (START ENGINE
STOP button) . . . . . . . . . . . . . . . . . . . . . .
84
Switching on ignition ............... . 83
un locking/loc king ............. ..... 36
Convenience opening/clos ing .......... 43
Convertible child safety seats ......... 173
•
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