2011 AUDI S3 check engine light

Driver information display
Brake system malfunction
BRAKE (USA models)/ {©) (Canada models)
The indicator light flashes if the brake fluid level is too
low , if there is a malfunction in the ABS system or when
the parking brake is engaged.
If the BRAKE /((D) symbol flas hes in the display wit h the
parking brake released, there is a malfunction in the brake
system. In addition to the symbol, o ne of two messages
appears in the display:
Stop vehicle and check brake fluid
ABS fault ! See owner's manual
- Pull off the road and sto p the ve hicle.
- Obtain professio nal assistance .
USA models: if there is a ma lfunct io n in the ABS system, the/.
w ar ning/ind ica tor ligh t illum inates along wi th the BRAKE system
ma lf u nction warning/indicator light~&.
Canada models: if there is a malfu nction in the ABS system, the
wa rning/ind icator ligh t illuminates togethe r with the ((i)) bra ke
system malfunction warn ing/indicator light~& .
Parking brake set
T he parking bra ke warning light Brake/((i)) (Canada mo dels) ill umi­
nates when the pa rking brake is set. In addit ion, a warning tone will
so und after yo u have driven for longer than 3 secon ds and faster than
3 mph (5 km/h).
& WARNING
• Always observe the warning s in ~ page 218 , "Engine compart­
ment" , before opening the engine hood and checking the brake
fluid.
& WARNING (c on tinued )
• Driving with low brake fluid i s a safety hazard! Stop the car and
get profe ssional assistance .
• If the brake sy stem warning/indicato r light illuminates
together with the ABS warning /indicator light, then th e ABS
system is malfunctioning. The rea r wheels could quickly lock up
when you apply the brakes . Th is could lead to lo ss of control and
your vehicle could slide! Dri ve carefully to the nea rest authorized
Audi dealer and hav e the malfunction corrected. •
Engine cooling system malfunction _L
A malfunction in the engine cooling system must be
rep aired as s oon as possible .
When t he -L symbol in th e d isplay flashes , then either the
engine coolant
temperature is too h igh , or the coolant level
is too low. In add it ion to the symbol , the fo llow ing message
also appears i n the d isplay:
Switch off engine and check coolant level
- Pull off th e road and stop the v ehicle.
- Tur n off the engine .
- Chec k coo lant level~
page 235 .
-Add co olan t if ne cessary ~ page 236.
-Con tinue drivi ng o nly a fter the e ngin e coolant
wa rnin g/ind icato r lig ht go es out .
- Con tact you r au tho rized Audi dealer fo r assis tance if
necessary .
If the eng ine coolant leve l is correct, then the radiator fa n may be the
c ause of the m alfun ction.
~

If the generator warning/indicator light shou ld also illuminate
=> page 15, t hen t he fan belt m ay be damaged .
& WARNING
• If your vehicle should break down for mechanical or other
reasons , pa rk at a safe distance from mo ving traffic, turn off the
engine and turn on the hazard warning lights=>
page 59, "Emer­
gency flasher
A. ".
• Never open the hood if you see or hear steam or coolant
escaping from the engine compartment -you risk being scalded.
Wait until you can no longer see or hear steam or coolant
escaping .
• The engin e compartment of any vehicle i s a dangerou s ar ea .
Before you p erform any work in the engine compartment , turn off
the engine and allow it to cool. Follow the warning sti ckers
=> page 218 , "Engine compartment ".
0 Note
Do not continue driving if the -¥- symbol illuminates . There is a
ma lf u nction in the engine coo ling sys tem -yo u could damage your
eng ine. •
Engine oil pressure malfunction ~
The red engine oil pressure warning symbol requires
immediate se rv ice o r repair.
If the 9=r. symbo l app ears in the d is pl ay a nd flash es, th e oil
p ressure is to o lo w . In add ition to the sym bol, the f ollow ing
messag e al so a pp ea rs in the dis play :
Switch off engine and check oil level
- P ull off the road a nd stop t he ve hicle.
Controls and equip ­
ment Safety first
Driver information display
-
Shut the eng ine down .
- Check t he eng ine oi l level=>
page 231 .
-Contact your authorized Aud i dea le r for assis tance i f
necessary .
Engine o il level too low
If the eng ine oi l leve l is too low , top off oil to t he p roper level
=>page 232.
Engine oil level OK
If the 't'!::;r. symbol starts flashing again even thoug h the engine oil
level checks O K on t he d ipstick,
do not start driving again and do not
let the engine run at idle .
Instead, contact you r authorized Audi
dealer fo r assis tance.
[ i ] Tips
• The engine oil pressure symbol 'I=:?: is not an indic ato r for a low
engine oil level. Do not rely on it . Instead , check the oil level in your
engine at regular intervals , preferably each t ime you refuel, and
always before going on a long tr ip .
• The yellow oil level warning indication requires oil refill or
workshop service without de lay . Do not wait until the red oil pre s­
s ure warning symbol~ starts to flash before you respond to the
low oil level warning _, . By then, your engine may already have
s uffered serious damage. •
Applies to vehicles: with manual trans miss ion
-;y Clutch pedal
T he indica tor lig ht illuminates if you do no t press t he cl utch pedal
when starting the engine . For safety reasons, the engine will only
sta rt when the clut ch pedal is pressed. •
Vehicle care Technical data

Driver information display
Fuel supply too low I
When the symbol illuminates, this means there are about 2.6
gallons (10 liters) of fuel left in the fuel tank. Time to refuel!
=;, page 221.
If the symbol lights up, even when there is ample fue l in the tank, and
the text
Tank system malfunction! Please contact workshop appears
in the display, there is a fault in the system. Contact a qualified work­
shop to have the fault rectified .•
App lies to veh icles: w ith eng ine speed limitat ion
Engine speed limitation ~
Engine speed maximum XXXX RPM
The symbol illuminates when there is an engine control malfunc­
tion. The indicator light
C in the instrument cluster also illuminates.
Th e eng ine speed is limited to the speed displayed in the driver infor­
mation system. Keep in mind that the engine speed will not exceed
the value disp layed in the driver information system, for example
when downshifting .
Please go to an authorized Audi dealer or other qualified workshop to
have the malfunction repai red. •
App lies to vehicles: with diesel eng ine and diesel particulate filter
Diesel particulate filter clogged
Particulate filter ! See owner's manual
If the indicato r light in the instrum ent cluster comes on, the
diesel particulate filter has become blocked with soot as the result of
constant short -distance driving. When the symbol illuminates,
you can alter your driving style to assist the filter self-cleaning
process. Drive for approximately 15 minutes in 4th or 5th gear (auto­
matic transm ission w ith the selector lever in the 5 posit ion) at a min
imum speed of 37 mph (60 km/h) and an engine speed of approx­
imate ly 2,000 RPM. The temperature increase that will result from
this can burn off the soot in the f ilter. The symbol will switch off when
the cleaning is successful. After a successfu l cleaning, there is no
need to bring the car to an authorized dealer or qualified workshop
because this is part of normal vehicle operation.
If the symbol does not switch off, see your authorized dealer or
other qualified workshop to have the problem corrected.
As long as the indicator light remains on (diese l particulate filter
plugged), you can expect increased fuel consumption and poss ibly
also a loss of engine performance.
For more information on the diesel particulate filter, refer to
=;, page 199.
& WARNING
Always adapt your speed to the current weather, road and traffic
conditions . You should never disobey traffic laws in order to
follow driving recommendations. •
Checking the engine oil level ~-
'LF. Please add max. 1 qt of engine oil!
If the ..:,; symbo l comes on, add 1 quart (1 liter) of oil at the next
opportun ity=-;,
page 232. •
Checking the engine oil level~
When the _ symbol illuminates, check the engine oil level as soon as
possible ~
page 231. Top off the oil at your earliest opportunity
=;, page 232. •

Engine oil sensor defective,:., 1ioo
If the ~ symbol illuminates, contact your authorized Audi dealer
and have the oi l senso r inspected. •
Worn brake pads ,
Brake pads!
If the warn ing lig ht i llum inates, immediately contact your authorized
Audi dea ler or qu alified wor kshop to have all b rake pads insp ected.
On USA mode ls the warn ing light ,,, comes on together w it h the
warning light
BRAKE . Both sets of brake pads on an axle must a lways
be rep laced at the same time .
& WARNING
Driving with bad brakes can c ause a collision and serious personal
injury .
• If the warning light land the warning light
BRAKE1> with the
me ssage Brake pads! comes on in the in strument cluster di splay,
immediately contact your author ized Aud i dealer or qualified
workshop to have all brake pad s checked or replaced if
necessary. •
....
Speed warning 1 _, (USA
models)/ ...... (Canada models)
If the :J symbo l ill uminates, this means you are driving faster than
t he set vehicle speed. Slow down!~
page 28. •
ll BRAKE : USA mode ls on ly
Controls and equip ­
ment Safety first
Driver information display
Speed warning 2
) (USA models)/ (Canada models)
If the symbol i llum inates, this means you have d riven faster than
t he second set ve hicle speed . S low dow n!~
page 28. •
App lies to vehicles : wit h dyn am ic head ligh t ra ng e ad justmen t
Headlight range control defective r!>
If the > illuminates, the dynamic headlight range cont rol is no
longer work ing prope rly. Have the system checked and repaired at
your authorized Aud i dea ler. •
Windshield washer fluid level too low ~
If the -., symbo l ill uminates, add windshie ld washer fluid to the
was he r system ~
page 24 3. •
Battery voltage low
If the O symbol illum ina tes, contact yo ur authorized A udi dea ler and
have the fo llowing components inspected:
• drive be lt
• battery charge
Also see i f th e gener ator w arning/ind ic a tor ligh t illumina te s
~page 15 .•
Vehicle care Technical data

Driver information display
Defective light bulb warning
The defective light bulb warning tells you when a vehicle
light bul b has become defective .
If a defective bu lb has been detected by the system or a light bulb
burns ou t, the symbo l w ith a message appea rs in the display to te ll
you which bulb is burnt out and where it is located. For example:
Rear left turn signal
After 5 seconds, the message d isappears . If you want to recall the
message into t he disp lay, press the CHECK button ::::,
page 8, fig. 2
® ·
There are three reasons w hy the defective bulb message would
appea r in the d ispl ay :
• The light bulb has burnt out::::,
page 285 .
• Th e fuse is "b lown" ::::, page 281, "R ep laci ng fuses".
• The wire connect io n to the light bulb is defective.
Have the bu lb rep lace d or the connec tion repa ired by your au thor ize d
Audi Service department.
& WARNING
• Light bulbs are pressurized and could e xplode while they are
being changed cau sing seriou s personal injur y.
• Work with due care when handling the high-voltage section of
ga s di scharge (xenon ) lamp s. Failing to do so could re sult in death
or se rious injury !•
Brake light defective B • urn (USA
models)/ (Canada models)
In case of a malfunct ion or component fai lure, the symbol
(USA models)/ (Ca nada models) can appea r. The following elec· trical components should be checked
, repaired or rep laced, as neces­
sary:
• Brake ligh t bul bs
• All wiri ng connec tions
• Brake light switch
C on tact your au thorized A udi deale r for assistance if necessary .
(I) Tips
The brake light switch is on ly inspected as part of the functional check
after the engine is sta rted .•
A pplies to veh icles: w ith au toma tic head ligh ts
Light/rain sensor defective
The indicator light indicates a defec t in the automatic
headlights/automatic wi per system.
If the symbo l ill umina tes, the ligh t se nso r has failed. Fo r safety
reasons, the low beams are turned on permanen tly with the sw itch in
AUTO . However, you can continue to t urn the lights on and off using
the light sw itch . In the case of a defec t in the ra in se nsor, the wi nd­
shield wiper lever functions are still avai lab le . Have the light/rain
s ensor che cked as soon a s poss ible at an a uth oriz e d Au di dea le r.•
A pp lies t o veh icles : wit h tire p ressure mon itoring system
Tire pressure monitoring system )
Tire press ure that is too lo w m ust be correc ted as soon a s
possible.
If the symbo l flashes for about one min ute after the igni ­
tion is sw itc hed on and then re m ain s on, t here is a malfu nc­
tion i n the syste m. Co nsu lt the neares t au thori zed Aud i
d ealer a s so on as possib le.
~

Intelligent technologyz..__~~-____________________________ __.
& WA RNING (c on tinued )
speed acco rding to the road and traffic conditions. Do not let the
e xtra safety afforded by th e ABS tempt you into taking extra risk s.
The ABS cannot overcome the laws of physics .
[ i J Tips
• If ABS is not funct ioning properly, a warning light will come on .
See ~
page 16 .
• If a fault occurs in the ABS, the EDL is also not functioning. This is
ind ic at ed by t he A BS w arni ng light. •
Brake assistant
The broke assistant is designed to achieve the optimum
br oking effect.
Th e b rake ass istant he lps to inc rease t he effective brak ing powe r and
thus to ac hieve a shorter stopping distance.
If the driver presses the
bra ke ped al ve ry qu ickly, the b rake assistant au toma tically bo osts the
brak ing force to the max imum level, up to the point where the anti­
lo ck brak e function (ABS) in tervenes to stop the whee ls from l ocking.
You should then keep the brake pedal pressed unti l the vehicle has
bra ke d to t he require d spee d. T he bra ke ass istan t swi tches itse lf off
as soon as you re lease the b rake pedal.
Th e brake assistant will not be operative if there is a ma lfu nctio n in
t he A BS .
& WARNING
Please remember that the accident risk always increases if you
drive too fast , especially in corners or on a slippery road , or if you
follow th e vehicle ahead of you too closely. An increased accident
risk cannot be compensated even by the brake assistant, so always
maintain a safe speed .•
Controls and equip­ ment Safety first Vehicle operation
Electro-mechanical power assist
---
T
he elec tro-m echa nic al po wer as sist hel ps the dri ver
w he n steering .
The degree of power assist is electronically matched to vehicle speed.
Th e powe r steering system ass ists the dr iver so t hat he ca n stee r the
vehicle with reduced physical effort.
Power steering will not wor k if the engine is off. As a result, the
stee rin g wheel will b e ha rd to tu rn .
& WARNING
If the system deve lops a problem, you must seek qualified profes­
sional as sistance.
0 Note
If the re is an elect ronic mal func tion, servotronic will s till f unction
li ke a conven tional power steering system, p rovid ing a constant
steering support fo rce that is no longer proportionate to the ve hicle
spee d. This is most noticeab le whe n tur ning the s teer ing whe el at low
speeds ( for example when park ing), -more effort will be required
t h a n usual.
• Be aware o f the d ifferent than usual steering response and adjust
your st eering force a ccordi ng ly.
• Have the prob lem checked and set r ight by an autho rize d Aud i
dealer as soo n as possib le.
• If a steering ma lf u nction occ urs, t his is signaled w ith the or. ~
indicator l igh ts a nd a wa rning tone, see .
[I] Tips
• If the powe r stee ring system shou ld fa il, or if the engine is not
run ning (for example, while being towed), you w ill still be ab le to
stee r the veh icle. However, more effort wi ll be required to do so . .,.
Vehicle care Do-it-yourself service Technical data

Driving and environment
------------------------------------------------'
you start the engine and avoid running at high RPMs while the engine
is still warming up.
0 Note
Do not leave engine idling unattended after starting. If warning
lights should come on to indicate improper operation, they would go
unheeded. Extended idling also produces heat, which could result in
overheat ing or other damage to the vehicle or other property.•
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel.
- Have your vehicle serviced at regular intervals.
By having your vehicle regularly serviced by an authorized Audi dealer
helps to ensure that it runs properly and economically. The condition
of your vehicle not on ly affects its safety and ability to hold its value,
it also affects
fuel consumption .
Check your oil each time you fill your tank.
The amount of oil used is related to engine load and speed.
It is normal for the oil consumption of a new engine to reach its
lowest value after a certain mi leage has been driven.
You must drive you r vehicle about 3,000 miles (5,000 kilometers)
before you can properly assess oil consumption.
Thi s also applies to fuel consumption and engine output.
0 Note
• Have your vehicle maintained properly and in accordance with the
service recommendations in your Warranty
& Maintenance booklet.
Lack of proper maintenance as well as improper use of the vehicle will
impa ir the function of the emission control system and could lead to
damage.
Controls and equip­ ment Safety first Vehicle operation
•
Do not alter or remove any component of the Emission Control
System unless approved by the manufacturer.
• Do not a lter or remove any device, such as heat shie lds, switches,
ignition w ires, va lves, which are designed to protect your vehicle 's
Emission Control System and other important vehicle components.
Fewer short tr ips
Fuel consumption will always be relatively high on short
trips.
- Try to avoid driving short distances with a cold engine.
The engine and catalytic converter have to reach their optimal oper­
ating temperature
to reduce fuel consumption and noxious emis ­
sions effectively .
• Just after starting, a cold eng ine in a mid-size car burns the fuel at
a poor rate of 6-8 miles per gallon (30-40 l/l00km). Half a mile down
the road, the mileage improves to 12 MPG (20 l/100 km). It will take
the engine no less than
two and a half miles (4 km) of driving to
warm up to its proper operat ing temperature and operate at an
economic mileage . This explains why taking the car for sho rt trips is a
rather wasteful convenience .
• Th e
outside temperature is also critical in this regard . Your car
consumes more fuel in the winter than in the summer.
Vehicle care Do-it-yourself service Technical data

Trailer towing
"---------------------------------------------------
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor ­
tation .
If you p lan to tow a t railer, p lease remember that the additional load
w ill affect durability, economy and performance.
Tr ailer towing not on ly p laces mo re s tress on the vehicle, it also calls
for more concentration from the driver.
For this reasons, a lways fo llow the operating and driv ing instr uctions
prov ided and use common sense .•
Technical requirements
Trailer hitch
Use a we ight-carrying hitch conforming to the gross trai ler weight .
Th e h itch mus t be suit able for your veh icle and t railer and mus t be
mounted securely on the vehicle's chassis at a
technically sound l oca­
t ion. Use on ly a tra ile r hi tch w ith removable b all moun t. Alw ays check
w ith the trailer hitch manufacturer to make sure that you are using
t he correc t hitch.
Do not use a bumper hitch .
The hitch must be installed in such a way t hat it does not interfere
w ith the impact -ab sorb ing bumper system. No mod ifi cations s houl d
be made to the vehicle exhaust and brake systems . From t ime to
t ime, che ck t hat all hitch mou nting bolts rema in securely faste ned.
W hen you are no t tow ing a trai ler, remove the trailer hitch ball
mount. This prevents the hitch from ca using damage should your
veh icle be s truck from behind=>&.
Tire pressure
When towing a tra iler, inflate the tires of you r vehicle to the cold tire
pressu re listed under "Full lo ad"on t he st ick er o n the r ight doo rjamb.
I n flate trailer t ires to trai ler and tire manufacturers' specifications .
Lights
The headlight settings should be checked with the tra iler attached
befo re d riving o ff. Have the headlights adjusted as necess ary s o that
you can see the road ahead but not b lind oncoming t raffic.
Check to make s ure bo th vehicle and t railer lights a re wor king prop­
er ly.
Engine cooling system
Towing a trailer ma kes t he engin e work harder. It is important t hat
t he cooling sys tem' s per formance stands up to the add ition al stra in.
M ake sure that the coo ling sys tem has eno ugh fluid .
Trailer brakes
If your trai ler is equipped with a braking system, check to be su re that
it confo rms to all regula tions .
Th e tra ile r hydrau lic brake system must not be directly con nected to
the vehicle's hydraulic b rake system.
Safety chains
Be sure trailer safety cha ins are p roper ly connected from the t rai ler
to the hitch on the vehicle. Leave enough s lac k in t he chai ns to permit
t u rni ng corners. When you insta ll safety chains, ma ke s ure t hey will
not d rag on t he road when yo u are d riving .
The chai ns should cross under the trailer tongue to prevent it from
drop ping in ca se of separat io n from t he hitch.
Trailer lights
Trailer lights must meet all regulat ions. Be su re to chec k w ith your
author ized A udi dealer for correct wiring, switches and relays. _.