2014 AUDI S4 start stop button

16 Instrum ent s and w arn ing /indic ato r light s
A WARNING
-Always observe the warnings in
i=> page 214, before opening the hood
and checking the brake fluid.
- Driv ing with low brake fluid is a safety
hazard. Stop the car and get professional
assistance.
- If the . (USA
models) ;II (Canada
models) brake system indicator l ight
turns on together with the ABS and ESC indicator lights, the ABS/ESC regu lating
function may have failed. F unctions that
stabilize the vehicle are no longer availa­
ble. This could cause the vehicle to
swerve and increase the risk of sliding .
Drive carefu lly to the nearest authorized
Audi dealer or other qualified workshop
and have the malfunction corrected.
- If the brake warning/indicator light does not go out after a few seconds and the
park ing brake is released, or lights up
wh ile you are driving, the fluid level in
the brake fluid reservoir is too low . If you
believe tha t it is safe to do so, proceed
immediately at low speed to the nearest
authorized Audi dealer or qualified work­ shop and have the bra ke system inspect­
ed.
- Always keep in m ind that after several
brake applications, yo u will need greater
pressure on the b rake peda l to stop your
vehicle. Do not re ly on strained brakes to
respond w ith maximum stopp ing power
in critical situations. You must allow for
increased brak ing distances . The extra
distance used up by fad ing brakes could
lead to an acc ident.
:fil.J(® ) Electromechanical parking brake
The warning/indicator light monitors the
electromechanical parking brake .
If the indicator light. (USA models)/ .
(Canada models) turns on, the park ing brake
was set . If the parking brake is set when the
ignit ion is off, the indicator light turns off af­
ter about 20 seconds. T
he warn ing/indicator light wi ll go out when
the parking brake is re leased.
• (USA model s) /. (Canada mod els) Cau­
ti on: Vehicle parke d too steep
If the indicato r light b links and the message
appea rs, there is not enough bra king power to
k eep the vehicle from roll ing . T he brakes have
overheated. The veh icle cou ld roll away even
on a sma ll incline.
Pre ss brak e pedal to rel eas e parking brake
To re lease the park ing brake, press the brake
pedal and press the button(®) or start driving
with sta rting assist at t he same time
i=> page 86.
Pl ease r elea se parking brake
To re lease the park ing brake manually, p ress
the brake pedal and press the button®) at
the same time. The parking brake on ly releas­
es automatically if the driver's safety be lt is
fastened.
Iii Parking brake!
If t he Iii ind icator light tu rns o n and this
message appears, there is a parking brake
malfunction. Drive to your authorized A udi
dealer or qualified workshop immediately to
have the malfunct ion corrected.
~ Safety belts
This warning/indicator light reminds you to
put on your safety belt.
T he . warning/ indicator light illuminates
when the ignition is switched on to remind
the driver and (on USA models only) any front
passenger to put on the safety be lt. Addit ion­
ally, an acoustic warning (gong) will also
sound.
For more Informat ion
c:> page 138, Safety
belt warning light.

18 Instrum ent s and w arn ing /indic ato r light s
• Contact your authorized Audi dea ler fo r as-
sistance if necessary.
I f the engine coolant level is co rrect, then the
radiator fan may be the cause of the malfunc­
tion .
• Coo lant temper ature! L et engine run
with vehicl e sta tionary
If the indicator light turns on and the mes­
sage appears, let the engine run at idle fo r a
few minutes to cool down.
A WARNING
- If your veh icle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the engine and turn on the hazard
warning lights
c:> page 49, Emergency
flashers.
-
- Never open the hood if you see or hear
steam or coolant escaping from the en­
gine compartment -you risk being scald­
ed . Wait until you can no longer see or
hear steam or coolant escaping.
- The engine compartment of any veh icle
is a dangerous area. Before you perform
any work in the engine compartment,
tu rn of the eng ine and allow it to cool.
Follow the wa rning sticke rs
c:> page 214.
([) Note
Do not continue driving if the. symbol
illuminates . There is a malfunct ion in the
eng ine cooling system -you could damage
your eng ine .
@ -Steering column lock
• Stee ring defecti ve! Do not dri ve vehicle!
If the indicator light turns on and t he mes­
sage appears, the re is an elect ronic steer ing
col umn lock ma lfunction. You cannot switch
the ignition on.
Do
not tow your vehicle because it ca nnot be
steered. Seek professional assistance.
Ill S tee ring lock: Contact de aler!
If the indicator light turns on and the mes­
sage appears, there is an e lectronic steering
co lumn lock malfunct ion .
Drive to your authorized A udi dealer immedi­
ate ly to have the ma lfunction corrected.
A WARNING
-
Your veh icle must not be towed in the
event of a malfunction in the electronic
steering co lumn lock because it cannot be
steered due to the locked steering. If it is
towed with the steering locked, there is
the r isk of an accident.
© -Ignition lock
• Ignition lock d efe ctive . Contact deal er!
If the indicator light turns on and the mes­
sage appears, do
not switch the ign it ion off
because you may not be able to sw itch it on
again .
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
On vehicles with convenience key*, the engine
should not be switched off using the
I START ENGINE STOPI button because the en­
gine cannot be started again after the ignition
has been switched off .
(D Tips
The symbol's appearance might be differ­
ent in some models.
$=J I[}. Electronic Stabilization Control
( ESC)
If the JjJ ind icator light blinks while driv ing,
the ES C or ASR (Anti-Slip Reg ulation) is active­
ly reg ulating .
If the
GJ ind icator light tu rns o n, the system
has switched the ESC off. In this case, yo u can
swi tch the ign ition off and then on to switch
the ESC on again. The indicator light turns off
when the system is functioning fu lly. ..,..

30 Driver information display
Resetting the service interval display
Your authorized Audi dealer will reset the cor­
responding service schedule after performing
the appropriate service on yo ur vehicle . Yo u
also have the possibility to reset the oil
change schedule after having performed an
oil change according to Audi specifications.
Select
I CAR I function button > Service interval
display > Reset oil change interval
or ICARI
function button> Car systems* control but­
ton
> Servicing & checks > Reset oil change
interval.
(D Note
If you disconnect the battery terminals, no
calculations can be made for the serv ice
interval display during this time and no
service rem inder wi ll appear. Remember
that observing the proper service intervals
is vitally important to extend ing the life of
your vehicle, particu larly the eng ine, and
maintaining its value. Even if the mileage
driven is low, the maximum period of one
yea r from one service to the next must not
be exceeded .
@ Tips
-Do not reset the display between oil
changes, otherwise the display will be in­
correct.
- The information in the Service Reminder
r ema ins stored even when the vehicle
battery is disconnected.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) ¢4' i n
the instrument cluster is part of the On-Board
Diagnostic (OBD II) system.
The warning/indicator light illuminates when
the ignition is switched on and goes out after
the engine starts and the idle has stabilized .
This indicates that the MIL is working proper­
ly.
If the light does not go out after the engine
is started, or illuminates while you are driv­
i ng, a malfunction may exist in the eng ine sys­
tem . If the light illuminates, the catalytic con­
verter could be damaged .
Continue driving
with reduced power (avoid­
ing sustained high speeds and/or rapid accel­
erations) and have the cond ition corrected.
Contact your authorized Audi dealer.
If the light il luminates, the electronic speed
limiter may also be malfunct ioning. For more
information
c:> page 31 , Electronic speed
limiter.
An improperly closed fuel filler cap may also
cause the
MIL light to illuminate
c:>page 212.
On-Board Diagnostics
Fig . 18 Locat io n of Data Link Con nector (D LC)
On-Board Diagnostics monitors the compo ­
nents of your emission control system . Each
monitored component in your engine system
has been assigned a code. In case of a mal­
function, the component will be identified
and the fault stored as a code in the control
module memory.
The MIL light may also illuminate if there is a leak in the on-board fuel vapor recovery sys­
tem. If the light illuminates after a refueling,
stop the vehicle and make sure the fuel filler
cap is properly closed
c:> page 212 .
In order to make an accurate diagnosis, the
stored data can on ly be displayed using spe­
c ial diagnostic equipment (generic scan tool
furOBD) .
~

34 Openin g and clo sing
keys. Unguarded access to the keys pro­
vides children the opportunity to start the engine and/or act ivate vehicle sys­
tems such as the power w indows etc . Un­
supervised operation of any veh icle sys­
tem by ch ildren can res ult in serious in­
Jury.
- Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop. Otherwise the steering col­
um n loc k co uld suddenly e ngage -caus­
ing the risk of an accident.
@ Tips
- The operation of the remote contro l key
c a n be tempo rarily disrupted by in terfer­
ence from tran smi tters in t he v ici nity of
the veh icle work ing in the same frequen­
cy ra nge (e.g . a ce ll phone, radio equip­
ment).
- Fo r security reasons, replacement keys
are on ly available from author ized Audi
dealer.
- For Decla ration of Compliance to United
States FCC and Industry Canada regu la­
tions
c:> page 2 78.
Removing the mechanical key
F ig . 20 Remote ma ster key : remov ing the mec hanic al
key
" Press the release button ® c:> fig. 20 .
"Pull the mecha nica l key @out of the maste r
key .
Using the mechan ica l key , you can :
- lock and unlock* the glove compartment on
the passenger's side ¢
page 65.
-lock and unlock the lockable* rear bench
seat and pass-through *
c:> page 69.
- activate the child sa fe ty locks on the rear
doors
c:> page 42 .
-lock and unlo ck the vehicle manu ally
¢
page 38 if this should not be possible
with the master key.
- use the ignition key emergency release
¢ page 35.
Check light and battery in the master
key
Fig . 2 1 Re mote mas te r ke y: r em ov ing th e batte ry hold­
e r
Check light in the master key
The check light@¢ fig. 21 in the master key
provides information about different condi­
t ions .
" The check light tu rns on br iefly once when a
button is pressed, and during an "inquiry"
by the convenience key system .
" If the check light does not come on, the bat ­
tery is dead a nd has to be replaced . In addi­
tion, when the batte ry is dead
the m indi­
ca to r li ght appears in the instr ument cluster
disp lay as well as the message
Plea se
change key battery .
Master key battery replacement
" Remove the mechan ica l key ¢ page 34 .
" Press the release button @ ¢fig. 21 on the
bat tery ho lde r and at the same time pull the
ba ttery holde r o ut o f the maste r key in the
di rection o f the arrow.
" Insta ll the new battery CR 2032 with the
"+ " sign facing down .
... Push the battery holder carefu lly into the
master key .

38 Opening and closing
Emergency locking
Fig. 25 Drive r's door : lock cyl inde r
Fig . 26 Front passe nge r's door/rea r doo rs *: emergency
l ock
If the centra l locking system ma lfunctions ,
you must unlock/lock the doors separately us­
ing the emergency key or the mechanica l key.
Unlocking/locking the driver's door with
the mechanical key
,. Remove the mechanical key ¢ page 34 .
,. To un lock the driver's door, turn the key to
the open position @¢
fig. 25.
,. To lock the driver's door, move the se lector
lever to the P position (automatic transmis­
sion) and turn the key
once to the close posi­
tion
® c> A in General description on
page 32.
Locking the front passenger's door/rear
doors* with the mechanical key
The emergency lock is located on the rear side
of the front passenger's door and the rear
doors . It is only visible when the door is open.
,. Remove the mechanical key ¢
page 34.
,. Pull the cover cap out of the opening
¢ fig . 26.
,. Insert the key in the inside s lot and turn it
all the way to the right (right door) or left (left door).
Once the front passenger's door/rea r doors *
have been closed, you cannot open them
again from the outside . The door can be
opened from the inside by pulling the door
handle.
If the child safety lock in a rear door*
is activated, you must first pull the door han­
dle on the inside . Then you can open the door
from the outside .
.8, WARNING
Read and follow all WARNINGS ¢.&. in
General description on page 32.
(D Tips
-
After the ignition is switched on, the pow­
er locking system switch and the unlocking button for the rear lid
cs in the door are
enabled.
Electronic immobilizer
The immobilizer prevents your vehicle from
being started by unauthorized persons .
Inside the key there is a computer chip . This
chip automat ically act ivates/deactivates the
electron ic immobilizer.
Applies to vehicles with ignition lock:
The electronic immobilizer deactivates auto­
matically when you insert the remote control
key into the ign ition lock . It activates again
automatically when you remove the remote
control key from the ignition lock.
Applies to vehicles with convenience key:
If the remote control key is located inside the
vehicle and you press the
I S TART ENGI NE STOP I button, the electron ic
immobilizer deactivates automat ically .
If you
switch the ignition off and remove the remote
control key from the vehicle, the electronic
immobilizer activates again automatica lly. ..,.

CD Note
If the engine has been under heavy load
for an extended period, heat builds up in
the engine compartment after the engine
is switched off- there is a risk of damaging
the engine . Allow the engine to run at idle
for about two minutes before switching it
off.
Convenience key
Starting the engine
Applies to vehicles: with convenience key
The I STAR T ENGINE ST OPI button switches
the ignition on and starts the engine.
Fig. 97 Center console : S TART ENGINE STOP b utto n
Starting the engine
.. Manual transmission : Fully depress the
clutch pedal and
move the shift lever to the
neutral position .
.. Automatic transmission: Step on the brake
pedal and
move the selector lever to P or N
~ .&, .
.. Press on the I STAR T ENGINE ST OP I button
~fig . 97-the engine will sta rt.
Switching the ignition on/off
If you would like to switch the ignition on
without starting the engine, follow these
steps :
.. Press the
I START ENGINE STOPI button
without pressing the clutch pedal (for man ­
ual transmissions) or the brake pedal (for
automatic transmissions) .
.. To switch the ignition off, press the button
again.
On the road 83
If the engine should not start immediately,
the starting process is automatically stopped
after a short time. Repeat starting procedure .
When starting the engine , major electrical
loads are switched off temporari ly.
After a cold engine is started, there may be a
brief period of inc reased noise because oil
pressure must first build up in the hydraulic
valve adjusters. This is normal and not a cause
for concern.
A WARNING
- Never allow the engine to run in confined
spaces - danger of asphyxiation.
- Never turn off the engine until the vehi­
cle has come to a complete stop.
- Always take the key with you whenever
you leave your vehicle. Otherwise, the
engine could be started or electrical
equipment such as the power windows
could be operated . This can lead to seri­
ous injury .
- Never leave children or persons requiring
assistance unattended in the vehicle. The
doors can be locked using the remote
transmitter, preventing people from es­
caping from the vehicle on their own in
the event of an emergency. Depending
on the time of year, peop le inside the ve­
hicle can be exposed to very high or very
low temperatures .
CD Note
-Avo id high engine rpm, full throttle and
heavy engine loads until the engine has
reached operating temperature - other­
wise you risk engine damage.
@ For the sake of the environment
Do not let the engine run while parked to
warm up. Begin driving immediately. This
reduces unnecessary emissions.
(D Tips
-After starting a cold engine, there may
be a brief period of increased noise be-
cause the oil pressure must first bui ld up
II-

84 On th e road
in the hy dra ulic valve adjusters. This is
norma l and not a cause for concern.
- If you leave the vehicle with the ignition
switched on, the ignition will switch
off
after a certain period of time . Please
note that e lectrica l equipment such as
exter ior lights w ill switch
off as well
when that happens.
Switching engine off
Applies to vehicles: with conven ience key
" Bring your vehicle to a complete stop.
"Automatic transmiss ion: Move the selector
lever to the P or N pos it ion.
" Press the
!START ENGINE STOPI button
r::!;page83, fig. 97.
Steering lock
The stee ring locks when you turn the engine
off us ing the I STAR T ENGINE STOP I button
and open the dr iver's door. The locked stee r­
i ng helps preven t vehicle theft.
Emergency off
If necessary, the eng ine ca n be sw itched off
with the selector leve r in the R or D/S pos i­
tions. To do so, step on the brake pedal and
p ress and hold the
I START ENGINE STOP I but­
ton vehicle speed must be less than 6 mph (10 km/h).
_& WARNING
- Never turn off the eng ine before the ve­
hicle has come to a complete stop . The
full function of the brake booster and the
power steering is not guaranteed. You
must use more force to turn or brake if
necessary . Because you cannot steer and
brake as you usua lly would, this could
lead to crashes and se rious injur ies.
- For safety reasons, you s hould always
par k your vehicle with the se lector lever
in P. Ot herwise, the ve hicle co uld inad­
vertent ly roll away.
- T he radiator fan ca n continue to ru n for
up to 10 mi nutes even after yo u have
tu rne d
off the eng ine and remove d the ignition key. The radiator fan can a
lso
turn on again if the engine coo lant heats
up because of intense sunlight or heat
bu ild-up in the engine compartment.
- Always take the key w ith you whenever
you leave your ve hicle. Otherw ise, the
eng ine could be sta rted or electrical
equ ipme nt such as the power windows
could be ope rated. This can lead to seri­
ous injury.
(D Note
If the engine has bee n under heavy load
for an extended pe riod, heat bu ilds up in
the engine compartment after the engine
i s sw itched
off -there i s a r is k of damag ing
the engine. A llow the eng ine to run at id le
for about two minutes before switching it
off.
Driver messages
Ignition i s on
This message appears and a warning tone
sounds if you open the d river's door when the
ignition is sw itched on.
No key id entified
This message appears when the
I S TART ENGINE STOPI button is pressed if
there is no master key ins ide the veh icle or if
the system does not recognize it . Fo r exam­
ple, the master key cannot be recognized if it
is covered by an object (e.g. al uminum b rief
case) which
screens the radio s ignal. Elec tron­
ic dev ices such as cell phones can also inter­
fere with the radio s ignal.
Pres s brak e pedal to start engine
This message appears if you do not press the
brake pedal to start the eng ine in a veh icle
with an automat ic transm iss ion.
Press clutch pedal to sta rt engine
T his message appears if yo u do not press the
clutch pedal to start the engine in a vehicle
with a manual transmission. .,.

Shift to N or P to start engine
This message appea rs whe n attempti ng to
sta rt the engine if the se le ctor lever for the
a u tomatic t ransmission is not in the P or N
p osition. The engine can on ly be sta rted w ith
the selector in these posit ions .
Is the key in the vehicle?
This m essage appears if the maste r key is re­
moved from t he vehi cle w ith the eng ine run­
ni ng.
If the mas ter key is no longe r in the ve ­
hicl e, yo u ca n not swi tch on the igni tion a fter
s t opping the eng ine a nd you also canno t st art
the eng ine again. Mo reover, yo u cannot lock
the vehicle from the outside with the key .
Shift to P otherwise vehicle can roll away.
Doors do not lo ck if lever is not in P.
This m essage appea rs for saf ety reaso ns
along w it h a wa rning signa l.
It appears if t he
s e lec to r l ever for the aut omat ic tra n sm iss io n
i s no t in the P po sition when switch ing off t he
ignit ion . Move the se lector lever to the P pos i­
tion, othe rwise the veh icle is not sec ured
aga inst rolling away. You a lso cannot lock the
ve hicle using the locking button * on the door
h andle or using the remote key.
Convenience key defective! Use ignition lock
Thi s m essa ge appe ars if the eng ine mu st be
s ta rted or s to p ped using the ig nition key and
no t th e
I S TART ENGINE STOP! button.
On the road 85
Electromechanical
parking brake
Operation
The ele ctromechani cal parking brake replaces
the hand br ake.
Fi g. 98 Ce nter console: Park ing b rake
.,. Pull on the switch@¢ fig. 98 to apply the
parking brake. The ind icator lig ht in the
sw itch illuminates.
.,. Step o n the brake pedal or the accelerator
pedal and press the switch at the same t ime
t o re lease the par king brake. The indicator
light in the sw itch goes out.
Your vehicle is equipped with an e lectrome ­
c hanical p arking bra ke. The pa rking bra ke is
d esigned to p revent the ve hicle from rolling
u nin ten tionally and repla ces the hand b ra ke.
In add ition to the normal fu nctions of a tradi ­
t ional ha nd b rake, the electromechanical
par king b rake provides vario us conv enience
and sa fe ty f unct ion s.
When starting from rest
- The integral start ing ass ist helps you when
dr iving by automat ica lly releasi ng the par k­
ing b ra ke ¢
pag e 86, Starting from rest .
-When start ing on inclines, the starting as ­
sis t preven ts the veh icle from unintentiona l­
ly ro lling back . The braking force of the
pa rk ing brake is no t released u ntil su ffici ent
driving for ce h as been bui lt up at the
w heel s. ..,.