2013 AUDI S4 SEDAN brakes

16 Instrum ent s and w arn ing /indic ato r light s
possible to set the parking brake or release
it once it has been set. Seek professional as ­
s istance .
(USA models): If the warning light
1111 and
the warning light
liJ appear together, imme­
diate ly contact your authorized Audi dealer or
qua lified workshop to have all brake pads in­
spected
¢ page 20.
When the light comes on, an audib le warning
signal is also given .
A WARNING
-Always observe the warnings in
¢ page 208, Engine compartment, be­
fore opening the hood and checking the brake flu id .
- Driv ing with low brake fluid is a safety
hazard. Stop the car and get professional
assistance.
- USA models: If the 1111 warn ing light,
the
G1 warning light and the m;B warn­
ing light come on together, the rear
wheels co uld lock up first unde r hard
braking. Rear wheel lock-up can cause
loss of vehicle con tro l an d an accident .
Have your vehicle repai red immedia tely
by your aut ho rized Audi dea le r or a quali ­
fied workshop. Drive slowly and avoid sudden, hard brake applications.
- Canada models: If the brake warn ing
light ., the
DJ warning light and the
ABS warning light
BJ come on together,
the rear wheels could lock up first unde r
hard braking. Rear wheel lock-up can
cause loss of vehicle control and an acc i­
dent . Have yo ur vehicle repaired immed i­
ately by your authori zed A udi dealer or a
qu alifie d wo rkshop. Dr ive slowly and
avo id su dden, hard brake appli cat ions.
- If the brake warning/indicator light does
no t go out afte r a few se con ds and the
par king brake is released, or lights up
whi le you are driving, the fluid level in
the brake f luid reservoir is too low. If you
believe that it is safe to do so, proceed
immediately at low speed to the nearest
authorized Audi dealer or qualified repair facility and have the brake system in­
spected.
- Always keep in mind that after severa l
brake applications, you will need greater
pressure on the brake pedal to stop your
veh icle. Do not rely on strained brakes to
respond with max imum stopping power
in critical s ituations . You must allow for
increased braking distances. The extra
d istance used up by fading bra kes could
le ad to an ac cident.
:l~/(®) Electromechanical parking brake
The warning/indicator light monitors the
electromechanical parking brake .
If the indicator light. (USA models)/ .
(Canada models) turns on, the pa rking brake
was set. If the parking brake is set when the
ignition is off, the ind icator light turns off af­
ter abo ut 20 seconds.
The wa rning/i ndicator lig ht will go out when
the pa rking brake is re leased .
• (USA models ) /. (Can ada model s) Cau­
tion: Vehicle parked too ste ep
If the indicator light b links and the message
appears, there is not enough braking power to
keep the vehicle from roll ing . The brakes have
overheated . The veh icle cou ld roll away eve n
o n a sma ll incline .
Press brake pedal to release parking bra ke
To re lease the parking brake, press the brake
pedal and press t he button(® or start driving
with starting assist at the same time
¢ page 78.
Please relea se park ing brake
T o re lease the par king b rake manually , p ress
t h e b rake peda l and press the button{®) at
the same time. The pa rking brake on ly releas­
es automatically if the driver's safety be lt is
fastened.
Ill Parking brake!
If the 11,1 indicator light turns on and t his
message appears, the re is a parki ng b rake

Instruments and warning/indicator lights 19
@ Tips
The symbol's appearance might be differ­
ent in some models .
n,/{J Electronic Stabilization Control
(ESC)
If the G1 indicator lamp blinks while driving,
the ESC or ASR (Ant i-S lip Regulation) is active­
ly regulating.
If the G1 indicator lamp illuminates, the sys­
tem has switched the ESC off. In this case , you
can switch the ignition off and then on to
sw itch the ESC on again . The system is func­
tioning completely when the indicator lamp
switches off .
I f the
Ii indicator lamp illuminates, the ESC
was switched off with the
I.!? O FF ! button.
Stabilization control (ESC/ABS): Fault! See
owner's manual
If the indicator light G1 and the ABS indicator
light
l!SJ (USA models) / li] (Canada mod­
els) turn on and the message appears, there is
a malfunct ion in the ABS system or electronic
differential lock. This also interrupts the ESC.
The brakes still function with their normal
power, but ABS is not active.
Drive to your autho rized Aud i dealer immedi­
ately to have the malfunction corrected.
For more informat ion about the ESC
c> page 184.
ABS /(8) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL) .
T he warning/indicator light
E (USA mod­
els)l[i] (Canada models) will come on for a
few seconds when the ignition is switched on .
T he light will go out after an automatic check
sequence is completed .
There is a malfunction in the ABS when:
- The warning/indicator light does not illumi ­
nate when you switch the ignition on. -
The warning/indicator light does not go out
after a few seconds.
- The warning/indicator light il luminates
while driving.
T he ESC indicator lig ht also illuminates if
there is a ma lfunct ion in the ABS. The mes­
sage
Stabilization control (ESC): Fault! See
owner 's manual
also appears in the instru­
ment cluster display and a warning tone
sounds.
The brake system will still respond even
without the assistance of the ABS system.
See your authorized Audi dealer as soon as
possible to restore full braking performance.
For more information regarding the ABS
c> page 184.
Malfunction in the brake system
If the brake warning light c> page 15 and the
ABS warning illuminate together there may be
a malfunction in the ABS, and there may a lso
be a malfunction in the brake system itself
c> .&. . The ABS will not work and you will no­
tice a change in braking response and per­
formance.
In the event of a malfunction in the brake
system
the warning/indicator light 1111
(USA models)/ . (Canada models) in the in ­
strument cluster flashes
c> page 15 .
Malfunction in the electronic differential
lock (EDL)
The EDL works together w ith the ABS . The
ABS warning light will come on if there is a
malfu nction in the EDL system ¢ page 184 .
See your authorized Audi dealer as soon as
poss ible.
A WARNING
-If the ma:1 (USA mode ls)/ [i] (Canada
models) warning light does not go out,
or if it comes on whi le dr iving, the ABS
system is not working properly. The vehi­
cle can then be stopped only w ith the
standard brakes (without ABS). You w ill
not have the protect ion ABS provides.
-
...

20 Instruments and warning /indicator lights
Contact your authorized Audi dealer as
soon as possible.
-USA models: If the la warning light
and the
E warn ing light come on to­
gether, the rear wheels could lock up
first under hard braking. Rear wheel lock­
up can cause loss of vehicle control and
an acc ident. Have your vehicle repaired
immediately by your authorized Audi
dealer or a qualified workshop. Dr ive
slowly and avoid sudden, hard brake ap­
plications.
- Canada models: If the brake warning
light . and the ABS warning light
li]
come on together, the rear wheels could
lock up first under hard braking. Rear
wheel lock-up can cause loss of vehicle
control and an accident. Have your vehi­
cle repaired immediately by your author­
ized Audi dea ler or a qualified workshop.
Drive slowly and avo id sudden, hard
brake applicat ions.
I I !f Safety systems
The fl (USA models),£,1 (Canada models) in­
dicator light monitors the safety systems (e.g.
airbags, pretensioners) and ill uminates for a
few seconds each time you switch the ignition
on.
If the fl (USA models)/ fll (Canada mode ls)
indicator light does not go out, or if it illumi­
nates while you are driv ing, or if it starts to
blink, then there is a ma lfunction somewhere
in the system.
If the light does not illuminate
when you switch the ignition on, this also
means there is a malfunction.
& WARNING
If you have a malfunction in the safety sys­
tems, contact your author ized Audi dealer
immediate ly. Otherw ise the safety sys­
t ems may not work properly in an acci­
dent.
l ) - : USA mod els only
(0) Worn brake pads
EiJ Brake pads!
If the warning light illuminates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­ ed . On USA models the warn ing light
EiJ
comes on together with the warning light
la-Both sets of brake pads on an ax le
must a lways be rep laced at the same time.
A WARNING
Driving with bad brakes can cause a colli­
sion and serious personal injury.
- If the warning light
EiJ and the warning
light
la1 l with the message Brake
pads! comes on in the instrument cluster
d isplay, immediately contact your au­
thor ized Audi dealer or qualified work­
shop to have all brake pads checked or
replaced if necessary.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
The ~ warning/indicator light (Electronic
Power Control) illuminates when you switch
the ignition on as a function check.
(D Tips
If this warning/ indicator light illuminates
while you are driving, then there is a mal­
funct ion in the engine electronics. Have
the malfunction corrected as soon as pos­
s ib le by your authorized Audi dealer or
qualified repa ir facility.
Ci Malfunction Indicator Lamp (MIL)
T he Malfunction Indicator Lamp (MIL) is par t
of the On-Board Diagnostic (OBD II) system.
-
The symbo l ¢4' lights up when the ignition is
switched on and will turn off after the engine
has started and has settled at a constant idle
IJ>,

60 Seats and st o rage
12-volt socket
Appl ies to vehicles: wit h 12-volt socket
Electrical accessories can be connected to the
12-volt socket.
Fig. 60 Cente r console: socket
.,. Open the socket cover~ fig. 60 .
.,. Insert the plug of the electrical device into
the socket.
The 12-volt socket can be used for electrical accessories. The power input must not exceed 120 watts.
Before you purchase any accessories, always
read and follow the information in
~ page 2 74, Additional accessories and parts
replacement.
.&_ WARNING
The socket and the electr ica l accesso ries
connected to it operate only when the igni­
tion is switched on. Incorrect usage can lead to ser ious injuries or burns. For this
reason, children should never be Left unat­
tended in the vehicle because this increas­ es the risk of injury.
- Never connect equipment that generates
electrical current, such as a so lar panel
or battery charger, to the 12 volt socket.
This could damage the vehicle's electr i­
cal system .
- To avoid damaging the socket, only use
plugs that fit properly .
(D Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle bat­
tery can still be drained.
Storage
General overview
.&_ WARNING
-Always remove objects from the instru­
ment panel. Any items not put away
could slide around inside the veh icle
while driv ing or when accelerat ing o r
when applying the brakes or when dr iv­
ing around a corne r .
- When you are driving make sure that
anyth ing you may have placed in the cen­
ter console or other storage locations
cannot fall out into the footwells. In case
of sudden braking you would not be able
to brake, depress the clutch or acce ler ­
ate.
- Any pieces o f clothing that you have
hung up must not i nterfere wit h the driv­
er's view . The coat hooks are designed
only for lightweight clothing. Never hang
any cloth ing with hard, pointed or heavy
objects in the pockets on the coat hooks .
During sudden braking or in an accident -
especia lly if the a irbag is deployed -
these objects could injure any passen­ gers inside the vehicle.
-

62 Seat s a nd s tor ag e
Addit ional storage
There are a variety of storage compa rtments
and fasteners in var ious places in the vehicle.
- In the roof headliner above the rearview
mirror .
- On the back of the front seat . The com pa rt­
ment can hold a maximum weight of 1 kg.
- On the left and right of the luggage com­
partment, behind the s ide trim.
- Garment hooks on the pillars in the rear of
the vehicle .
A WARNING
-When driving, do not leave any hard ob­
jects on the rear wi ndow shelf or allow
your pet to s it on the shelf. They could
become a hazard for ve hicle occ upan ts in
the event of sudden braking or a crash.
- Always remove objects from the instru­
ment pane l. Any items no t stored could
slide around inside the vehicle while driv­
ing or when accelerating or when apply­
ing the brakes or when driving around a
corner.
- When you are driving make sure that
anything you may have placed in the cen­
ter console or other storage locations cannot fall out into the footwells. In case
of sudden braking you would not be able
to brake or accelerate .
- Any articles of cloth ing that you have
hung up must not interfere with the driv­
er's v iew. The coat hooks are designed
only for lightweight clothing. Never hang
any clothing wit h hard, po inted or heavy
objects in the pockets on the coat hooks .
During sudden braking or in an accident -
especially if the airbag is deployed -
these objects could injure any passen­
gers inside the vehicle .
- To reduce the risk of persona l injury in an
acc ident or sudden stop, always keep the
glove compartment closed while dr iving.
- Read and fo llow all WARNINGS
i=> page 161, Important safety instruc­
tions on the side airbag system.
- Hang clothes in such a way that they do
not impa ir the driver's vision.
- The coat hooks must on ly be used for
lightweight clothing. Do not leave any
heavy or sharp edged objects in the pock­
ets which may interfere with the s ide cur­
tain airbag deployment and can cause pe rsonal injury in a crash.
- Do not use coat hangers for hanging
cloth ing o n the coat hooks as t his can in­
terfere with proper deployment of the
side curta in a irbags in an a ccident.
- Do not hang heavy objects on the coat
hooks , as they could cause personal in­
jury in a sudden stop.
- Always keep the compa rtment above the
rea rv iew mirror closed while d riving to
re duc e the risk of i nju ry in the event of
sudden b raking m aneuvers or a collision.
(£} Note
Objects located on the rear shelf that rub
against the rea r window could damage the
hea ting wi res for the rear window defog"
ger.
(D Tips
- A vent slot is located between the shelf
and the rear w indow. Do not bloc k the
vent wi th any items you may place o n the
rear window she lf.
- Do not place b ulky items on the rear win­
dow shelf as they co uld restrict or block
the drive r's vision in the rear view mirror.

78 On the road
Emerg ency b rake function
An emergency brake ensures t hat the vehicle
can be slowed down even if the
normal brakes
fail c::>
page 79, Emergency broking.
Indicat or light s
-If the par king b rake is closed w ith the igni­
t ion
s witc hed on the . (USA models) /
• (Canada mode ls) indica tor lights come
on in the instrum ent cluster and the switch .
-If the parking brake is closed w ith the igni ­
tion
s witc hed off the . (USA models) /
• (Canada mode ls) indicator lights come
on in the instrument clust er and th e switch
for about 20 seconds .
A WARNING
If a gear or a drive range (automat ic trans­
m ission) is engaged with the vehicle sta­
tionary and the engine runn ing, you must
in no instance accelerate o r release the
cl utch carelessly. Otherwise the vehicle
w ill sta rt to move immediately- r isk of an
accident .
@ Note
If the . symbol in the display or the
.. (USA models) . (Canada models)
ind icator light in the instr ume nt cl uster
flashes, there is a ma lf u nction in the brake
system. By pressing the
ISETI button, you
can bring up a driver message which ex­
plains the malfunction in more detail. If
the driver message
Pa rking brake! ap ­
pears, there is an operating malfunction in
the park ing brake which you should have
repaired immediately by an authorized
Aud i deale r or other qualified workshop
c::>
page 15.
(D Tips
- You can apply the parking brake at any time - even w ith the ignition switched
off . Th e ignit ion must be t urned on in o r­
der to release the par king brake. - Occasional noises when the parking
bra ke is applied and released are normal
and are not a cause for concern.
- When the vehicle is parked , the parking
brake goes through a self-test cycle at
regu lar interva ls. Any associated noises
are normal.
Parking
Parking
"' Press the br ake ped al to s top the veh icle .
"' Pull the button @ c::>
page 77, fig. 77 to set
the parking brake.
"' Automatic transmission: Move the selector
lever to P.
.,. Turn t he engine off c::>
,& .
.,. Man ual transmission: Shift into 1st gear.
In addition on inclines and gr ades
.,. Turn the steering wheel so that your vehicle
w ill roll aga inst the curb in case it shou ld
start to move.
A WARNING
- When you leave yo ur vehicle -even if on ­
ly briefly -always remove the igni tion
key. This app lies particularly when chi l­
dren remain in the vehicle. Otherwise the
children could start the eng ine, release
the park ing brake or operate electrical
equ ipme nt (e .g . power windows). There
is the risk of an acc ident .
- When the veh icle is locked, no one -par­
ticularly not children should rema in in
the vehicle . Locked doors make it mo re
d ifficult for emergency worke rs to get in­
to the vehicle -putting lives at r isk .
Starting from rest
The starting assist function ensures that the
parking brake is released automatically upon starting.
Stopping and applying parking brake
"' Pull the switch @c::> page 77, fig . 77 to ap-
ply the parking brake . .,.

.. Select : ICAR lfunction button> Car systems
control button > Driver assist > Speed
warning.
Warning thresho ld 2 can be set in the speed
range starting from 20 mph to 150 mph (30
km/h to 240 km/h). Settings can each be ad­
justed in intervals of 6 mph (10 km/h).
Cruise control
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h).
®
f
®t
0
Fig. 79 Con tro l lev er w it h push-bu tton
Fig. 80 D isplay : S ele ct ed speed
.. Pull the lever to position (D ¢ fig. 79 to
switch the system on.
.. Drive at the speed to be controlled .
.. Press button @to set that speed.
The stored speed and the green symbol
[ij;jl)~i~ (US model)/ .. (Canadian model) are
shown in the display ¢ fig. 80. The display
may vary, depending on the type of display in
your vehicle. The indicator light
[ij;(l)~i~ (US model)/ B (Canadian model) w ill
also light up in the instrument cluster.
On the road 81
The speed is kept constant by modifying en­
gine power or through an active brake inter­
vention.
_& WARNING
- Always pay attent ion to the traffic
around you when the cruise control is in
operation. You are always responsible for
your speed and the distance between
your veh icle and other vehicles .
- For reasons of safety, cru ise control
should not be used in the city, in stop­
and-go traffic, on twisting roads and
when road conditions are poor (such as
ice, fog, gravel, heavy rain and hydro­
p lani ng) -risk of accident.
- Turn off the cruise control temporarily
when enter ing turn lanes, highway exit
lanes or in construction zones .
- Please note that inadvertently "resting"
your foot on the accelerator pedal causes
the cruise control not to brake. This is
because the cruise control is overridden
by the driver's acceleration .
-If a brake system malfunction such as
overheating occurs when the cruise con­
trol system is switched on, the braking
function in the system may be switched off. The other cruise control functions re­
main active as long as the indicato r light
lijj(l )~i~ (US models) li'I (Canadian mod­
e ls ) is on.
@ Tips
-Veh icles with manual transmiss ion: You
can attain the set speed only if the gear
that is currently engaged will allow it, or
if it does not tax the engine and allows i t
to run smoothly. Therefore shift into a
higher or lower gear in a timely manner.
- The brake lights illuminate as soon as
the brakes apply automatically.
Changing speed
.. To increase/decrease the speed in incre­
ments, tap the lever in the
0 10 direction
¢ page 81, fig. 79. Ill>

necessary to keep the vehicle from
rolling.
- If the selector lever is unintentionally
moved into N while you are driving, take
your foot
off the accelerator pedal and
wait for the engine to return to idle
speed before selecting a driving position .
- Never shift into R or P when the vehicle is
in motion .
- Never get out of the driver's seat when
the engine is running.
- If you must get out of the vehicle, move
the selector lever securely into the P po­
sit ion and apply the parking brake firmly.
- If the engine must remain running, never
have any driving position engaged when
checking under the hood . Make sure the
selector lever has securely engaged and
is locked in P with the parking brake
firmly set ¢
page 208, Engine compart­
ment.
Otherwise, any increase in engine
speed may set the vehicle in motion,
even with the parking brake applied.
(D Tips
For safety reasons, the parking brake is re­
leased automatically only when the driv­
er 's safety belt is engaged in the buckle.
Selector lever positions
Applies to vehicles: with multit ronic or tiptronic
This section describes the selector lever posi ­
tions and driving ranges .
2
Radio WXRK
9:30-
12/5/2 011
121 19 .0mpg
1992 mi 40 .4
~= ~p +7 2~
Fig. 83 Display in the in str um ent cluste r: selecto r leve r
i n positi on P
Transmission 85
The selector lever position engaged appears
next to the selector lever as well as in the in­
strument cluster display .
P -Park
In this selector lever position the transmis­
s ion is mechanically locked. Engage P only
when the vehicle is
completely stopped ¢ &
in Driving the automatic transmission on
page 84.
T o shift in or out of position P, you must first
press and hold the brake pedal and then press
the re lease button in the selector lever handle
while moving the selecto r lever to or from P.
You can shift out of this position only with the
ignition on.
R- Reverse
The transmission will automatically select the
lowest gear ratio when you shift into reverse.
Select R only when the vehicle is at a
full stop
and the engine is running at idle speed ¢ & in
Driving the automatic transmission on
page 84.
Before you move the selector lever to R, press
both the button in the handle of the selector
lever
and the brake pedal at the same time .
When the ignition is on, the backup lights illu­
minate when the selector lever is moved into
R.
N -Neutral
The transmission is in neutral in this position.
Shift to th is position for standing with the
brakes applied ¢
page 86.
When the vehicle is stationary or at speeds
below 3 mph (S km/h), you must always apply
the footbrake before and while mov ing the
lever out of N.
D /S -Normal position for driving forward
In the D/S pos ition, the transmission can be
operated either in the normal D mode or in
the S sport mode . To select the S sport mode,
pull the selector lever back briefly . Pulling the
lever back again will se lect the normal D ...,