warning light AUDI S4 2013 User Guide

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 185.
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 185.
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 185 .
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>,

Instruments and warning/indicator lights 21
speed. This ind icates that the MIL is working
properly.
The warning light illuminates when there is a
mal funct ion in the engine e lectronic system.
Contact your authorized Audi dealer and have
the ma lfunction corrected .
An improperly closed fuel filler cap may also
cause the MIL light to illum inate
r::!,> page 217.
For more informat ion r:!,> page 30 .
!?) Engine speed limitation
App lies to vehicles: wit h eng ine speed lim itat ion
(II Do not exceed max. engine speed of
XXXX rpm
The (I! symbol illuminates when there is an
engine control malfunction. Th e~ indicator
l ight in the instrument cluster also illumi­
nates. The engine speed is lim ited to the
speed displayed in the driver information sys ­
tem . Keep in mind that the engine speed will
not exceed the va lue displayed in the driver in­
formation system, for example when down­
shifting.
Drive to your authorized Audi dea ler immedi­
ately to have the malfunction corrected .
~ .. Engine oil level
1111 Add oil , max XXXX l. You may cont. driv.
When the symbo l l!I and driver message ap­
pear , add the amount of oil appearing in the
disp lay at the next opportunity
r:!,> page 224.
~;.., Engine oil sensor
II Oil level! Sensor defective
If the symbol illuminates, contact your au­
thor ized Audi dealer and have the o il sensor
inspected. Until you have this done, check the
oil level each time you refuel just to be on the
safe side
r:!,> page 224 .
Bu Tank system
liJl Please refuel
If the indicator light turns on for the first
time and the message appears, there are
about 2. 1 -2.4 gallons (7 -9 liters) of fuel left
in the tank . T ime to refuel
r:!,> page 216.
Ii] Fuel tank system malfunction! Contact
dealer
If the indicator light turns on and this mes­
sage appears, there is a malf unct ion in the
tank system.
Drive to your authorized Audi dealer immed i­
ate ly to have the malfunction corrected.
<:::> Windshield washer fluid level
- Please refill washer fluid
If the symbol illum inates, add w indshie ld
washe r fluid to the washer system and also to
the headlight washer system*
r:!,> page 233.
'1:> Windshield wipers
El'J Windshield wiper defective
The re is a malfunction with the windshield
wipers.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
~/ }D 10 $ Defective light bulb warning
If the Fl indicator light turns on, a bulb has
failed. The message ind icates the location of
the bulb.
- If the
IIJ indicato r light also turns on, then
a fog light has fai led. The position of the in­
dicator ligh t corresponds wi th the locatio n
on the vehicle .
- If the
ftD indicator light also turns on, then
a rear fog* light has fai led. The position of
the indicator light cor responds wi th the lo­
cation on the vehicle .
T his wa rning can also occu r if the light switch
is in an unengaged posi tion between two sym­
bols .
Vehicle lights: System fault!

22 Instruments and warning/indicator lights
If the message appea rs, there is a mal func ­
tion in the headlights or lig ht switch.
Dr ive to yo ur autho rize d Audi deale r i mmedi­
a te ly to have the mal func tion cor re cte d.
8_ WARNING
- Ligh t bul bs are pressurized and co uld ex ­
plode while t hey are being changed caus­
ing ser ious persona l injury.
- W ork w ith due care when handling the
high-volta ge section of gas discha rge
(xenon) lights*. Fai lure to do so could re­
sult in death or se rious i njury.
Have the bulb replaced or t he connection
re paired by yo ur auth o rized Au di Service
department.
~()) Headlight range control
App lies to vehicles: with headlig ht range control
El Headlight range control defective !
If t he symbo l El il lum inates , the dynam ic
headlight range cont ro l is no longer wo rking
properly . Have the system checked and re ­
pa ired at your author ized Audi dealer.
§0 Adaptive Light
App lies to vehicles: with adaptive lig ht
mil Audi adaptive light : defective
If the indicator light turns on and th is mes­
sage appears, there is a malfunction in the
adapt ive light system. The headlights still
f u nction .
Go to an authori zed dea lership to have the
headlights or the contro l unit for the adapt ive
light repa ired .
~D Light/rain sensor
App lies to vehicles: with light/ra in sensor
tfl Automatic headlights / automatic wipers
defective
If the indica to r li ght turns on and this mes ­
sage a ppears, the light/ rain senso r is not
f unct ioning correct ly .
F o r sa fe ty reasons the low be ams are turne d
o n pe rmanen tly with the sw itch in
AUTO.
However, you can conti nue to turn the lights
o n and off using the light switch. Yo u can st ill
control a ll functions that are independent of
the ra in sensor through the w indshield w iper
l ever .
Contact your a uthorized Aud i dea ler as soon
as possible to have the problem co rrected .
Q Adaptive dampers
Applies to vehicles: wit h Audi drive se lect and adaptive
dampers
B Suspension: System fault!
I f the B symbol in the disp lay co mes on, there
is a ma lf unc tion in the a dap tive dampers.
Please go to an authorized A udi dealer or ot h­
er qualifie d wo rkshop to have the malfunct ion
r epaired.
.r i Sport differential
Applies to vehicles: wit h Aud i drive se lect and spo rt dif­
ferential
Sport differential : System fault!
T he re is a malfunction with the sp ort diffe ren­
ti al.
D rive to your author ized A udi dealer immed i­
ate ly to have the ma lfu nction corr ected .
Sport differential : Overheating
T he transm iss ion tem perat ure has inc reased
s ignificantly due to the sporty d riving manner.
Drive in a less sporty ma nner until the tem­
perature re turns to the normal range and the
i ndicato r light switc hes of.
8_ WARNING
"---
Co ntac t your author ized Audi d ealer or a
qu alified wor kshop if the s port differential
is fa u lty or malfun ctionin g . Th e rep air
m ust be perfor med b y train ed p ersonn el
-

using the correct oil in order to ensure
safety.
~ Ignition lock
II! Ignition lock defective
Instruments and warning/indicator lights 23
There is a malfunction in the electronic igni­
tion lock. Please go to an authorized Audi
dealer or other qualified workshop to have the
malfunct ion repaired.
¢¢ Turn signals
Whenever you use the left. or the right II
turn signal, the ind icator light blinks. When
you use the emergency flashers, both indica­
tor lights flash.
If one of the turn s ignal light bulbs burn out,
the turn signal will blink tw ice as fast as nor­
mal. Carefully drive to your authorized Audi
dealer immediately to have the malfunct ion
corrected.

24 Driver information d isplay
Driver information
display
Introduction
The Driver information display inside the in ­
strument cluster provides you, the driver ,
with important information.
Fig. 7 Ins trum en t cl uster : ce nter display
Fig. 8 W iper lev er: con trols fo r th e menu disp lay
Center display
W ith the ignition on, the display in the Dr iver
I nformation System shows the following in­
formation :
- CD* inserted or Radio* station set
- Outside temperature* : At temperatures be-
low 41 °F (+5 °C), a snowflake symbol ap­
pears in front of the temperature display
c::> .&_.
-Warning if one of the doors, front lid or en-
gine compartment lid is not closed .
Additional functions
You can open the following functions in the
Driver Information System display by pressing
the
! RESET I button c::> fig. 8 one or more times:
Digital speedometer*
Tire pressure monitoring *
~page253
Trip computer*
Efficiency program*
Service interval display
c::>page25
c::> page 27
c::> page 29
--·-
Gearshift selector positions
Automatic transmission
Adaptive cruise control*
Auto Check Control
<::>page 87
Some functions and vehicle components are
scanned for their operating status when you
switch the ignition on and whi le you are driv­
ing. Malfunctions or required service proce­
dures are signaled audibly and indicated by
red and yellow illuminated symbols and re­
minders in the d isplay.
A WARNING
--- Never rely exclusively on the outside
temperature display to determine if a
road surface is icy or not. Keep in mind
that road surfaces, especially br idges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F (+5 °C).
- Always remember, even if the "snow­
flake" symbol (ice warning) does not ap­
pear in the disp lay, black ice cou ld be on
the road.
- Always reduce your speed and drive with
specia l care in cold weather cond itions
when the chance of encountering icy
road surfaces increases.
¢j) Tips
If the vehicle is stationary, or if you are
driving at a very low speed, the tempera­
ture shown in the display might be s light ly
higher than the actual outs ide tempera­
ture. This i.s caused by the heat being radi­
ated from the engine .

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
ing, 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 illuminates, 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 217.
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 217.
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) .
~

In o rder to connect the special diagnostic
equipment, push the plug into the Data Link
Connector (DLC) . The DLC is located to the
right of the hood release ¢
fig. 18.
Your authorized A udi dealer or qualified work­
shop can interpret the code and perform the necessary repa ir.
A WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
malfunctions, which can increase the risk
of a coll is ion!
Electronic speed limiter
-
Your veh icle may be factory equipped with
tires that are rated for a maximum speed of 130 mph (210 km/ h). Thi s is may be less than
the maximum speed of your ve hicle. To red uce
the risk of sudden ti re failure and loss of con ­
trol if the vehicle is operated at excessive
speeds, your vehicle has an e lectronic speed
limiter. The electronic speed limiter prevents
your veh icle from going faster than the t ire
speed rat ing . For more informat ion
¢ page 246 .
If the engine control unit rece ives fa ulty vehi ­
cle roadspeed signa ls, the Ma lfunction Indica­
tor Light (MIL)
¢..ij w ill illuminate . If this oc­
curs, contact the nearest authorized Audi
deale r for assistance.
A WARNING
-
Always observe the posted speed limits
and ad just yo ur speed to suit p revail ing
road, t raff ic and weather conditions . Never
drive your vehicle faster than the maxi ­
mum speed rating of the tires insta lled .
Dri ver information di spla y 31

-You cannot open the doors or the rear lid
from the outside (increased security, for ex­
amp le when yo u are stopped at a red light).
- The diodes in the power loc king switc h illu­
minate when a ll the doors are closed and
l ocked.
- Front doors: you can un lock and open the
doors from the ins ide by p ulling on the door
hand le.
- Rea r doors: p ull the door handle once to re­
lease the lock. Pull the hand le again to open
the door.
- If you have a crash and the airbag is activat­
ed, the doors automatically un lock.
A WARNING
- The power locking sw itch works w ith the
ignition off and automatically locks the
entire vehicle when it is actua ted .
- On a vehicle locked from the outs ide the
power locking system switch is inopera­
t ive.
- Locked doors make it more diffic ult for
eme rg ency workers to get into th e vehi ­
cle, w hich puts lives at risk . Do not leave
anyone behi nd in the ve hicle, espe cially
ch ildren.
(D Tips
Your vehicle is locked automatically at a
speed of
9 mph (15 km/h) (Au to Lock)
~ page 32. You ca n unl ock the vehicle
a g ai n using the opening f un ction in the
power locking sys tem swit ch ~ -
Setting power locking
In the radio/MM !*, you can se t which doors
t he central locking system will unlo ck .
.,. Se lect: ICARlf unct io n button>
Central lock­
ing .
Or
.,. Se lect: ~ I C-A-R~I fu nct io n bu tton >
Car sy s­
tems*
c ontrol bu tton > Vehicle setting s >
(Central lock ing) *.
Single door unlocking /Unlock door s* -
you
c a n specify whi ch door s unl ock when yo u open
the vehicle .
Opening and clo sin g 37
-Select ing off / All and p ressing the Iii button
on t he remote contro l key unlocks the entire
veh icle.
- Selecting
on /Driver and pressing the Iii but­
ton on the remote control key once un locks
only the driver's door. In vehicles with a con­
ven ience key*, only the door whose handle
you pull w ill unlock. If you press the
Iii but­
ton tw ice, the entire vehicle will u nlock . If
you press the [@] button, t he entire ve hicle
w ill always lock .
Luggage comp. loc k/Lock e xterior trunk han­
dl e -
If you select On , you can no longer ope n
the luggage compartment using the rea r lid
hand le
~ page 39, fig. 2 7. In this case, the
r ear lid can be opened with t he l=I button on
th e maste r key¢ page 35, fig. 22 or with the
l = I* button in the d river's doo r¢ page 40,
fig .
29 .
Fold mirrors * if you se lec t On , the outs ide
mirro rs will fo ld in au tomati cally when yo u
press the
Iii button on the remote cont ro l key
~ page 50.
Tone when locking -if you selec t On, a to ne
will soun d when yo u lo ck t he vehicle.
Auto Lock /Lock when driving -if you selec t
On, th e e nti re ve hicl e w ill lock automat ically
whe n the speed reaches
9 m ph (1 5 km /h).

_& WARNING
Always take the key with you when you
leave the ve hicle. The key can disarm the
electronic engine immobilizer and perm it
an unauthor ized person to start the engine
and enable ope rat ion of t he vehicle sys­
t ems such as power window or power sun­
roof leading to ser ious personal injury.
(D Tips
- The vehicle cannot be started if an unau­
thorized key is used . T he vehi cle may not
star t if another radio device such as a key
for another vehicle or a transponder is
l ocated on the key ring.
- For De clarat ion of Compliance to United
States FCC and Industry Canada regula­
tions
¢page 283.
Rear lid
Opening/closing rear lid
F ig . 27 Rear lid: hand le
F ig. 28 Seda n drive r's door : remote rear lid release *
Opening the rear lid
.. Press the button e::5 on the remote contro l
master key for at least one second. The rear
li d unlocks and opens slightly . Or
Op enin g an d clos ing
.. Press the handle on the rear lid ¢ fig. 2 7. Or
.. Sedan: Pull the release button
e::5 in the
driver's door¢
fig. 28
Closin g the re a r lid
.. Pull the rear lid down at the grip on the in­
side and allow it to drop gently to close it
¢ _&. .
_& WARNING
-
-After closing the rear lid, always p ull up
on it to make sure that it is properly
closed. Otherwise it could open suddenly
when the vehicle is moving.
- To help prevent poisonous exhaust gas
from being drawn into the vehicle, al­
ways keep the rear lid closed whi le driv­
ing. Never transport objects larger than
those which fit complete ly into the lug­
gage a rea, because then the rear lid can­
not be f ully closed.
- N ever leave your vehicle unattended es­
pecia lly with the rear lid left open.
A
child cou ld craw l in to the car thro ugh the
luggage compartment and pull the lid
shut, becoming trapped and unable to
get out. To reduce the risk of personal in­
jury, never let children play in or around
your vehicle. Always keep the rear lid as
well as the ve hicle doors closed when not
in use .
- Always ensure that no one is within
range of the rear lid when it is moving, in
particular close to the hinges -fingers or
hands can be pinched.
(D Tips
When the vehicle is locked, the rear lid can
be opened separately by pressing the but­
ton
e::5 on the master key. When you close
the rea r lid aga in, it locks automat ica lly.
39