2014 AUDI S4 warning lights

Instruments and warning/indicator lights 17
0 Battery
The. warni ng/ind icator lig ht ill umin ates
when yo u switc h on th e igni tion and mu st go
ou t aft er the engine has s tarte d.
• Alternator fault: Battery is not being
charged
I f the i ndicator lig ht t urns on and t he mes­
sage appears, the re is a malf unction in t he
gen erato r or vehicle e lectr ica l system .
Drive to yo ur autho rized Aud i dea le r or quali­
fied workshop immediately . Because the vehi­
cl e ba ttery is disc harging, tur n off a ll unnec­
essa ry ele ct rical eq uipment suc h as th e radio.
S eek profession al ass is ta nce if the batte ry
ch arg e leve l is t oo low.
(•) low battery: Battery will be charged
while driving
If t he indicator lig ht t urns on and t he mes­
sage appears, the re may be limited starting
ab il ity .
If
t hi s message turns off after a litt le w hile,
the battery charged enough wh ile driving.
If t he message does not turn off, have your
author ized Audi dealer or qua lified wor kshop
c o rrect the malfunctio n.
't:::7: Engine oil pressure
The red en gine oil pressure warning symbol
requires immediate service or repair . Driving
with a low-oil -pressure indication is likely to
inflict severe damag e to the engine.
• Turn off engine! Oil pressure too low
If th e ind ic a tor lig ht tur ns on an d th e me s­
sage a ppears, the oil press ure is too low .
~ Pull off the road.
~ Sto p th e ve hicl e.
~T urno ff th e e ngine.
~ Check the engine oil level <=> page 219.
~ If the engi ne oi l leve l is too low , add engine
o il
<:!) page 219. Make sure that the oil pres ­
s ur e warning symbol. appea rs no longer
i n t he d isp lay before you start d riving aga in.
~ If the en gine o il level is co rrec t and the in di­
cato r light still turns on, turn the e ngine
off
and do not cont inue driv ing . See k pr ofessi o­
na l assistance .
(D Tips
- The engine oil pressure symbol. is
not an indicator for a low engine oil lev­
el. Do not rely on it. Instead, check the
oil level in your engine at regular inter­
vals, preferably each time you refuel,
and always before going on a long trip.
- The yellow oil level warning indication
Ill requires oil refill or workshop serv­
ice without delay . Do not wait until the
red oil pressure warning. starts to
flash before you respond to the low oil level warning
Ill. By then, your engine
may already have suffered serious dam­
age.
·
~ .. Engine oil level
• WARNING: Please add oil immediately
If the indica to r li ght and the message a ppear,
add engine oil immediately
c:!) page 216 .
El Add oil, max XXXX l. You may cont. driv .
When the symbol El and dr ive r message ap ­
pear, add the amoun t of oil app ear ing in t he
display at t he next oppo rtunity
r:=> page 21 6.
-L Engine cooling system
A malfunction in the engine cooling system
must b e repaired as soon as possibl e .
• Turn off engine and check coolant level
If the indicato r light turns on and the mes­
sage appears, the coolant temperature is too
high or the coolant leve l is t oo low.
~ Pull off t h e roa d.
~ Stop the vehicle.
~ Tu rnoff the engine .
~ Check coolant level<=> page 221 .
~ Add coolant if necessary <=> page 222.
~ Continu e dr iv in g o nly afte r the engin e cool-
ant wa rning/ind icator light goes ou t. ..,.

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. ..,..

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.

Power windows
Controls
The driver can control all power windows.
F ig . 35 Section of the driver 's doo r: co ntrols
All power window sw itches are provided with
a two -position function :
Opening the windows "' Press the sw itch to the first stop and hold it
un til the window reaches the des ired pos i­
t io n.
"' Press the sw itch br iefly to the se cond stop
to au tomatically open the window .
Closing the windows "' Pull the switch to the first stop and hold it
unt il the window reaches the des ired pos i­
t ion.
"' Pull the swi tch b riefly to the sec ond stop to
a utoma tica lly close the window.
Power window switches
@ Driver's door
@ P assenger's door
© Left rear door
@ Right rear door
® Safety button
Child safety locks
W hen the safety button ® is p ressed
~ fig. 35, the@ symbol in the but ton lights
up. The power w indow swi tches in the re ar
doors are switched
off .
Opening and clo sin g 43
A WARNING
-When you leave your vehicle - even if on­
ly briefly -always remove the ignit ion
key. This app lies pa rtic ularly whe n chil­
d ren remain in th e vehicle. Othe rwise t he
child ren c ould sta rt the eng ine o r ope r­
a te elect ric al e quipme nt (e.g. power win­
dows). The power w indows are func tio n­
a l until the dr iver's door or passenge r's
door has been opened .
- Pay close attention when closing the win ­
dows to p revent pinching of hands o r
limbs .
- When locking the ve hicle from outside,
the vehicle must be unoccupied since the
windows can no longer be opened in an
emerge ncy.
(D Tips
After the ignition has been switc hed
off,
the w indows can still be opened o r closed
for about 10 minutes. The power windows
a re not switched
off until the driver's door
or passenger's door has been opened.
Convenience opening/closing
The windows and the power sunroof can be
opened and closed with the mechanical key or
the emergency key.
Fig . 36 Key turns for opening and closing
Convenience opening feature
"' 6 0 0 ... m
"' Use the emergency key or pull the mechani­
cal key out of the maste r key ~ page 34 .
"' Insert t he key in to the lock of the dr iver's
door .