warning light AUDI S4 2014 User Guide

Instruments and warning/indicator lights 19
If the fl indicator light turns on, ESC was re­
stricted or switched
off using the I ~ O FF I but­
ton
¢ page 186.
Stabilization control (ESC/ABS): Fault! See
owner's manual
If the indicator light Ji) and the ABS indicator
light
ml (USA models) / II] (Canada models)
turn on and the message appears, the ABS or
e lectronic differential lock is ma lfunctioning.
This a lso ca uses the ESC to malfunction . The
brakes st ill function with their normal power,
but ABS is not act ive.
D rive to your authorized Audi dea ler immedi­
ately to have the malfunction corrected .
Fo r more informat io n about the ESC
¢page 186.
A WARNING
If the . (USA models) . (Canada mod ­
els) brake system indicator light turns on
together with the ABS and ESC indicator
lights, the ABS/ESC regulating function
may have failed. Functions that stabilize
the vehicle are no longer avai lab le. This
could cause the vehicle to swerve and in­
crease the risk of sliding. Drive carefu lly to
the nearest authorized Audi dea le r and
have the malfunction corrected.
(D Tips
For addit ional information on ESC and
ABS, refer to¢
page 186.
ABS /(8) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differential lock (EDL).
The warning/indicator light ml (USA models)/
II] (Canada models) w ill come on for a few
seconds when the ign ition is switched on . The
light wi ll go out after an automatic check se­
quence 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 malfunction 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
¢page 186.
Malfunction in the brake system
If the brake warning light ¢page 15 and the
ABS warning illuminate
together there may be
a malfunction in the ABS, and there may a lso
be a malfunct ion in the brake system itself
¢ .&. .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 . (USA
models) . (Canada models) in the instru ­
ment cluster flashes
¢ page 15 .
Malfunction in the electronic differential
lock (EDL)
The EDL works together with the ABS . The
ABS warning light will come on if there is a
malfu nction in the EDL system ¢
page 186.
See your authorized Audi dealer as soon as
poss ible.
A WARNING
-
-If the ml (USA models) tli] (Canada
models) warning light does not go out,
or if it comes on while 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 Instrum ent s a nd w arn in g/i ndic ato r light s
Contact your authorized Audi dealer as
soon as possible.
- USA models: If the . warning light and
the
rJl1 warning light 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 acci­
dent . Have your vehicle repaired immed i­
ately by your authorized Audi dealer or
qualified workshop. Dr ive slowly and
avo id sudden, hard brake applicat ions.
- Canada models: If the brake warn ing
light . and the ABS warning light
[IJ
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 acc ident. Have your vehi­
cle repaired immediately by your author­
ized Audi dealer or qualified workshop.
Drive slowly and avoid sudden, hard
brake applicat ions.
~ /!J.' Safety systems
The fl (USA models)/ E,I (Canada models) in­
d icator light monitors the safety systems (e .g.
a ir bags, pretensioners) and ill uminates for a
few seconds each time you switch the ignition
on.
I f the
fl (USA mode ls)/ E,I (Canada models)
i ndi cato r light does not go out, or if it illumi­
nates wh ile you are driv ing, or if it sta rts 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.
A WARNING
If you have a malfunction in the safety sys­
tems, contact your author ized Audi dealer
immediately. Otherw ise the safety sys­
tems may not work properly in an acci­
dent.
l) .: USA mode ls on ly
(0) Worn brake pads
llJ Br ake pad s!
If the warning light illuminates, immed iately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­ ed . On USA models the warn ing light
llJ
comes on together with the warning light •.
Both sets of brake pads on an axle must al­
ways be replaced at the same time.
A WARNING
Driving with bad brakes can cause a colli­
sion and serious personal injury.
- If the warning light
llJ and the warning
light
. 1) with the message Brake pads!
comes on in the instrument cluster dis­
play, immediately contact your author­
ized Audi dealer or qualified workshop to
have all brake pads checked or replaced if
necessary.
EPC Electronic power control
This warning/indicator light monitors the
electronic power control.
The l3i warn ing/ indicator light (Electron ic
Power Control) illuminates when you sw itch
the ignit ion on as a function check.
(D Tips
If this warning/ indicator light illum inates
while you are driving, then there is a mal­
funct ion in the engine electronics. Have
the malfunct ion corrected as soon as pos­
s ible by your authorized Audi dealer or a
qualified repa ir facility.
Ci Malfunction Indicator Lamp (MIL)
T he Ma lfun ction 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 212.
For more informat ion r:!,> page 30 .
!?) Engine speed limitation
App lies to vehicles: wit h eng ine speed lim itat ion
Ill Do not exceed max. engine speed of
XXXX rpm
The Ill symbol illuminates when there is an
engine control malfunction . The
'3i 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 disp layed 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 .
'.!2:;,.,, Engine oil sensor
• Oil level! Sensor defective
If the symbol illuminates, contact your au­
thorized Audi dealer and have the oil sensor
inspected. Until you have this done, check the
oil level each time you refuel just to be on the
sa fe side
r:!,> page 219 .
Bil Tank system
(iD Please refuel
If the indicator light turns on for the f irst
time and the message appears, there are
about 2.1- 2 .4 gallons (7 -9 liters) of fuel left
in the tank. Time to refuel
r::!,>page 211 .
DD Fuel tank system malfunction! Contact
dealer
If the indicator light turns on and this mes­
sage appears, there is a malfunction in the
tank system.
Drive to your authorized Audi dealer immedi­
ate ly to have the malfunction corrected.
C> Windshield washer fluid level
II Please refill washer fluid
If the symbol illum inates, add windshield
washer fluid to the washer system and also to
the headlight washer system*
r:!,> page 228.
~ Windshield wipers
El Windshield wiper defective
The re is a malfunc tion with the windshie ld
wipers .
Drive to your author ized Audi dealer immedi­
ate ly to have the malfunction corrected .
~/ }D /0$ Defective light bulb warning
If the S:$ indicator light turns on, a bulb has
failed. The message indicates the location of
the bu lb.
- If the
El indicato r light also turns on, then
a fo g lig ht has failed. The position of the in­
dicator light corresponds w ith the location
on the vehicle .
- If the
II indicato r light also turns on, then
a rear fog * light has failed. The position of
the indicator light corresponds with the lo­
cation on the vehicle .
T his wa rning can also occur if the light switch
is in an unengaged position between two sym­
bols.
Vehicle lights: System fault!
If the message appears, there is a malfunc ­
tion in the headlights or light sw itch .
Drive to your au thori zed Audi dealer immedi-
ately to have the malfunction corrected .
IJJ,,

22 Instruments and warning/indicator lights
&_ WARNING
-light bulbs are pressurized and could ex­
plode while they are being changed caus­
ing serious personal injury.
- Work with due care when handling the
high-voltage section of gas discharge
(xenon) lights*. Failure to do so could re­
sult in death or serious injury.
(D Tips
Have the bulb replaced or the connection
repaired by your authorized Audi Service
department.
~(D Headlight range control
Appl ies to vehicles: with headlig ht range co ntrol
II Headlight range control defective !
If the symbol II illuminates, the dynamic
headlight range control is no longer working
properly . Have the system checked and re­
paired at your authorized Audi dealer.
§0 Adaptive Light
Appl ies to vehicles: with adaptive light
r!l Audi adaptive light: defective
If the indicator light turns on and this mes­
sage appears, there is a malfunction in the
adaptive light system. The headlights still
function.
Go to an authorized dealership to have the
headlights or the control unit for the adaptive
light repaired .
@..D light/rain sensor
Applies to vehicles: with light/rain sensor
II Automatic headlights/ automatic wipers
defective
If the indicator light turns on and this mes­
sage appears, the light/rain sensor is not
functioning correctly.
For safety reasons the low beams are turned
on permanently with the switch in
AUTO.
However, you can continue to turn the lights on and off
using the light switch . You can still
control all functions that are independent of
the rain sensor through the windshield wiper lever .
Contact your authorized Audi dealer as soon
as possible to have the problem corrected.
Q Adaptive dampers
Applies to vehicles: with Aud i drive select and adaptive
dampers
II Suspension: System fault!
If the II symbol in the display comes on,
there is a malfunction in the adaptive damp­
ers. Please go to an authorized Audi dealer or
qualified workshop to have the malfunction
repaired.
H Sport differential
Appl ies to vehicles: with Aud i drive select and spo rt dif ­
ferential
Sport differential: System fault!
There is a malfunction with the sport differen­
tial.
Drive to your authorized Audi dealer immedi­
ately to have the malfunction corrected .
Sport differential: Overheating
The transmission temperature has increased
significantly due to the sporty driving manner.
Drive in a less sporty manner until the tem­
perature returns to the normal range and the
indicator light switches of.
&_ WARNING
-
Contact your authorized Audi dealer or
qualified workshop if the sport differential is faulty or malfunctioning . The repair
must be performed by trained personnel
using the correct oil in order to ensure
safety.
~ Ignition lock
l3 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
dea ler or other qualified workshop to have the
malfunction repaired.
¢¢ Turn signals
Whenever you use the left B or the right B
turn signal, the ind icator light blinks . When
you use the emergency flashers, both indica­
tor lights flas h.
If one of the turn s ignal light bulbs burn out,
the turn signal w ill blink tw ice as fast as nor ­
mal. Carefully drive to your authorized Audi
dealer immediately to have the malfunct io n
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 Instrument cluster: ce nter display
Fig. 8 Wiper lever: controls for the menu display
Center display
With 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 (+S °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*
<::>page249
Trip computer* <::>page25
Efficiency program* <::> page 27
Service interval display <::> page 29
Speed warning <::> page 87
Gearshift selector positions <::> page 92
Automatic transmission
Adaptive cr uise control*
<::> page 99
Auto Check Control
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 , espec ially br idges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F (+S °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 conditions
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 slightly
higher than the actual outside 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
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) .
~

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 242 .
If the engine control unit rece ives fa ulty vehi ­
cle roadspeed signa ls, the Ma lfunction Indica­
tor Light (MIL)
¢4 will 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, traff 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:
I CARI f u nct ion butto n > Central lock­
ing .
Or
.,. Se lect:
~ I C-A-R~I fu nct io n bu tton > Car systems *
co ntrol b utton > Vehicle settings > (Central
locking)*.
Single door unlocking /Unlock door s* -
you
c a n specify whi ch door s unl ock when yo u open
the veh icle .
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. lock/ Lock exterior 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 bu tton 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 2 78.
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 ~ on the remote cont ro 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 c::> fig. 2 7. Or
.. Sedan: Pull the release button~ in the
driver's door¢
fig. 28
Closing the rear lid
.. Pull the rear lid down at the grip on the in ­
side and allow it to drop gent ly to close it
c::> _&. .
_& 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 veh icle. 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
~ on the master key. When you close
the rea r lid aga in, it locks automat ica lly.
39