2015 AUDI S3 oil pressure

12 Instrum ent s and indicator lamp s
Fuel level
The display@ Q page 10, fig. 3 only works
when the ignition is sw itched on . When the
d isplay has reached the reserve mark, the bot­
tom LED wi ll turn red and the
tD indicator
light turns on
Q page 24 . The bottom LED
blinks red when the fue l level is very low .
The on -board computer shows the range
based on the fuel leve l
Q page 2 8, On-board
computer display.
F or the tank capac ity in yo ur vehicle , refer to
the Tec hnical Data
Q page 288.
CJ) Note
Never d rive until the tank is completely
empty. The irregular supp ly of fuel that re­
sults from that can cause the engine to
misfire. Uncombusted f uel will then enter
the exha ust system. This can cause over­
heating and damage to the catalytic con­
verter .
Coolant temperature indicator
In vehicles without a coolant temperature in­
d icator , an indicator l ight . will turn on
when the coolant temperature is too h igh
Q page 20. Refer to Q Q) .
The coolant temperature ind icator @
c::> page 10, fig . 3 only works when the ignition
is switched on . T o prevent engine damage, ob­
serve the fo llow ing notes about the tempe ra­
ture ranges.
Cold range
If only the LEDs at the bottom of the gauge
turn on, the engine has not reached operat ing
temperature yet . Avoid high engine speeds,
fu ll acce le rat ing and heavy engine loads.
Norm al range
The engine has reached its operating temper­
ature once the LEDs up to the center of the
gauge turn on under normal driving condi­
tions. The L EDs higher up may turn on if the
engine is under heavy load or the o uts ide tern- perature is h
igh. This is not a cause for con­
cern as long as th e . indicator light in the
display does not turn on.
Hot range
If the L EDs in the upper area of the disp lay
and the. indicator light in the instrument
cluster disp lay t urn on , the coo lant tempera ­
ture is too high
c::> page 20.
A WARNING
I-
- Always observe the warn ing in
c::> page 217, before opening the hood
and checking the engine coolant level.
- Never open the eng ine hood if you see or
hear steam, or if you see engine coo lant
dripping from the engine compartment.
You could burn yourse lf . Let the engine
coo l off f irst unti l yo u can no longe r see
or hea r steam or coolan t escap ing.
Q) Note
- In vehicles w ith a boost pressure indica­
to r*, this indicator replaces the tempe ra­
t ur e display. To promote a long engine
service life, avoiding h igh engine speeds,
full acceleration and he avy eng ine lo ads
during approximately the first 15 m i­
nutes when the engine is co ld is recom ­
mended. The amount of time until the
eng ine is warm depends on the outside
temperat ure. Check the engine oil tem­
perature* if necessary.
c::> page 32
- Add itiona l head lights and other compo­
nents in front of the air intake impairs
the cooling effect of t he coolant. This in­
creases the risk of the engine overheat­
ing during high outs ide temperatures
and heavy eng ine load.
- T he front spoiler also he lps to d istr ibute
cooling ai r correctly wh ile driving. If the
spoiler is damaged, the coo ling effect
w ill be imp aired and the risk of the en­
gine overhea ting will increase . See an au­
thorized Audi dealer or autho rized Audi
Service Facility for assistance . ...,

M N
0 > co ,...., \!) 1.1'1
M 1.1'1 ,....,
or
or
or
or
USA models:
Electromechanical parking brake
i:::> page 19
Can ada mode ls:
E lectromechanical parking brake
c::> page 19
Cooling system
c::>page 20
Engine oil pressure
c::>page20
Alternator
~page 20
Front safety be lt
c::> page 21
Steering./
c::>page 193
Steering lock
c::>page 21
Engine start system
c::>page 21
Instrum ent s an d indicator lamp s 15
or
or
or
or E
ngine stops while driv ing
i:::>page 21
Transmission malfunction
c::> page 115
Adaptive cru ise control*./
c::>pageBB
USA mode ls: Speed warn ing
system
c::> page 83
C ana da m odel s: Speed warn ing
sys tem
i:::>page83
F ill Ad Blue*
c::> page 21 S
AdBlue malfunction*
c::> page 215
Yellow indi cato r light s
-------------
Centra l indicator light (pay at -
tention to the additional infor­
mation in the instrument cluster
disp lay) ©
c::> page 14, fig. 8
Electronic Stabilization Control
(ESC) ./
c::> page 22
•

16 Instruments and indicator lamps
or
~~
&
CD
TPMS
;
or Electronic
Stabilizat ion Control
(ESC) ../
c:>page22
Electronic Stabilization Control
(ESC)
c:> page 189
USA models:
Anti-lock braking system (ABS)
defective../
c:> page22
Canada models:
Anti-lock braking system (ABS)
defective ../
c:>page22
USA models: Safety systems ../
c:>page 21
Canada models: Safety systems
,I
c:>page 21
Brake pads
c:>page22
Electromechanical parking brake
c:>page 19
Hill ho ld*
c:>page23
Tire pressure monitoring system
,I
c:> page264
Tire pressure monitoring system
c:>page264
Adaptive dampers*
c:>page26
or
or
or
or
or E
ngine control (gasoline e ngine)
,I
c:>page23
Eng ine control (diesel engine)../
c:>page23
Exhaust control system../
Qpage23
Diesel particu late filter*
Q page23
Engine speed limitation
Qpage24
Engine oil level (min.)
Q page24
Engine oil sensor
Qpage24
Engine temperature
Qpage20

20 Instruments and indicator lamps
ltJ;):t :1;034 ( USA model s) / ml (Canada mod­
els) Caution : Vehicle parked too steep
When t he i nd ic ator light blinks and th is mes­
sage appears, t here is no t eno ugh braking
power to keep the ve hicl e from rolling . The
b rakes have overheate d. The vehicle cou ld roll
away even on a small incline .
ltJ;)i:j;lJ34 ( USA model s) / ml (Canada mod­
els) Parking brake is applied
I f t his message appea rs, press t he b rake pedal
fi rst and then re lease the par king brake if nec­
essa ry.
@ Tips
F or addit ional info rmation on the pa rk ing
brak e, refer t o¢
page 80.
...L Cooling system
• Switch off engine and check coolant lev­
el!
T he coolant leve l is too low or the coolant
temper ature is too high .
D o not cont inue d riving and swi tc h the eng ine
o ff. C hec k the coolant leve l¢
page 225 .
-If the coolant leve l is too low, add coolant
<=> page 226 . O nly con tinue driv ing o nce the
indicator light turns off.
- If the coolant leve l is correct, the problem
may be ca used by a ma lf u nction in the radia­
tor fan . D o not cont inue driv ing . See an au­
t h o rized Aud i dea le r or a uth o riz ed Aud i
Se rv ic e Fa cili ty for ass ist ance.
• Coolant temperature too high! Let engine
run with vehicle stationary
Let the eng ine run at id le for a few minutes to
coo l down .
A WARNING
- Never op en the hood if you ca n se e or
h ear st ea m or coo la nt escaping from the
eng ine com pa rtm ent. This in cre ases t he
r isk of burn s. Wai t unti l you no longe r
see o r hear steam o r cool ant esca ping.
-
'
- The engine compa rtment in any vehicle
can be a dangerous area. Stop the engine
a nd allow it to cool befo re working in the
e ng ine compartment. A lways foll ow the
info rmation found in
~ page 217, Work ­
ing in th e engin e compartm ent.
(D Note
Do n ot cont inue dr iv ing if the . indicato r
lig ht tur ns on -this inc reases the r isk o f
engine damage.
"1::::7: Engine oil pressure
• Switch off engine! Oil pres sure too low
St op t he engine and do not cont inue drivi ng.
Check the eng ine oi l level
r=> page 223 .
- If the engine o il level is too low, add eng ine
oil
r=> page 221. Only co nti nu e driving once
the indicator light turns off.
- If the engine o il level is co rrect and the indi­
cator light still turns on, turn the eng ine off
and do not cont inue driv ing . See an author­
ized Aud i deale r or au tho rized Aud i Service
Facili ty for ass ista nce.
(i) Tips
The oil pressu re war ning is not an oi l level
i ndica to r. For th is reason, c hec k t he o il lev­
e l reg ularly .
' 0 Alternator/battery
• Alternator fault: battery is not being
charged
The re is a malfunction in the alternator or th e
vehicle e lectr ica l system .
Drive to an authorized Audi dealer or author­
ized Audi Serv ice Facility immediately . Be ­
ca use the v ehicl e batte ry is drain ing , turn off
all unnecessa ry el ectrical eq uipm ent such as
t h e M MI. See yo ur aut ho rized Aud i de aler o r a
qualifie d repa ir fa cili ty if the b attery ch arge
l evel is too low .
(•) low battery charge: Battery will be
charged while driving

76 Driving
(D Tips
-If it is difficult to turn the key to position
(D , turn the steering wheel back and
forth slightly to release the steering
wheel lock .
- After starting a cold engine, there may
be a brief period of increased noise be­
cause the oil pressure must first build up
in the hydraulic valve adjusters. This is
normal and not a cause for concern .
- If the battery is disconnected and recon­
nected, you have to hold the ignition key
in position
(D for five seconds for the en­
gine to start .
- After switching the ignition off, you can
only remove the key when the selector
lever is in the "P" (Park) position. After
that the selector lever is locked.
,
Stopping the engine with the key
App lies to vehicles: with mechanical ig niti on lock
Stopping the engine
.,,. Br ing the vehicle to a full stop.
.,,. Turn the key to position @.
Releasing the steering lock
Requirement : The selector lever must be in
the P position.
.,,. Remove the ignition key in position @
Qpage 77, fig . 71 Q &-
.,,. Turn the steering wheel until you hear the
steering wheel lock.
The locked steering helps prevent vehicle
theft .
_& WARNING
-Never turn off the engine 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 usually would, this could
lead to accidents and serious injuries . -
Never remove the ignition key from the
ignition look while the vehicle is moving .
Otherwise, the steering lock could sud­
denly engage and you would not be able
to steer the vehicle .
- Please note that the brake booster and
power steering only work when the en ­
gine is running. When the engine off, you
must use more force to steer or brake
the vehicle . Because the usual steering
and braking capability is not available,
the risk of accidents or injuries increases.
- Always take the vehicle key with you
when leaving the vehicle, even for a
short period of time. This applies partic­
ularly when children remain in the vehi­
cle. Otherwise the children could start
the engine or operate electrical equip­
ment such as power windows.
- For safety reasons, always park the vehi­
cle with the selector lever in the P posi­
tion . Otherwise, there is the risk that the
vehicle could roll.
- After the engine has been switched off,
the radiator fan can continue to run for
up to 10 minutes - even with the ignition
switched off. It can also switch on again
after some time if the coolant tempera­
ture rises as a result of heat buildup or if
the engine compartment is heated by
sunlight and the engine is hot .
(D Note
-If the engine has been under heavy load
for an extended period of time, heat
builds up in the engine compartment af­
ter the engine is switched off -there is a
risk of damaging the engine. For this
reason, let the engine run for at idle for
approximately two minutes before shut­
ting it off.

78 Driving
must use more force to steer or brake
the vehicle. Because the usual steering
and braking capability is not available,
the risk of accidents or injuries increases .
- Avoid high engine speed, full throttle,
and heavy engine load as long as the en­
gine has not reached operating tempera­
ture yet. You could damage the engine .
- The engine cannot be started by pushing
or towing.
@ 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 build up in the hydraulic valve adjusters. This is
normal and not a cause for concern .
- If the . indicator light blinks in the in­
strument cluster before switching the ig ­
nition off, the ignition will not switch on
again.
9 page 193
- If you leave your vehicle with the ignition
switched on, the ignition will switch off
after a certain amount of time. Make
sure that electrical equipment such as
the exterior lights are switched off.
Turning the engine off using the button
Applies to vehicles: with conven ience key
• Bring the vehicle to a full stop.
• Move the selector lever into the P position .
• Press the
I START ENGIN E STOPI button
9page 77, fig. 71 .
Steering lockll
The steering locks when you turn the engine
off using the
I START E NGIN E STOP t* button,
l) Thi s fun ction is not available in all c oun tries.
move the selector lever into the P position
and open the driver's door.
The locked steering helps prevent vehicle
theft .
Emergency off function
If it is absolutely necessary, the engine can al­
so be turned off while driving at speeds lower
than 6 mph (10 km/h). If you press the
I STAR T ENGINE ST OPI* button while driving,
the message
Pressing start/stop button
again will switch off engine!
appears. To
switch the engine off, press the
I S TAR T ENGINE ST OPI* button twice in a row
briefly or press and hold for longer than two
seconds.
A WARNING ~
- Never turn off the engine 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 usually would, this could
lead to crashes and serious injuries.
- Please note that the brake booster and
power steering only work when the en­
gine is running. When the engine off, you
must use more force to steer or brake
the vehicle. Because the usual steering
and braking capability is not available,
the risk of accidents or injuries increases.
- Always take the vehicle key with you
when leaving the vehicle, even for a
short period of time. This applies partic­
ularly when children remain in the vehi­
cle . Otherwise the children could start
the engine or operate electrical equip­
ment such as power windows.
- For safety reasons, always park the vehi­
cle with the selector lever in the P posi­
tion. Otherwise, there is the risk that the
vehicle could roll.

192 Smart T echnol ogy
Corro sion
Leaving the vehicle parked for long periods o f
time, low mi leage and avoiding heavy braking
can contribute to corrosion on the brake ro­
tors and di rty brake pads.
I f you usually avoid heavy brak ing or if there is
corrosion present, occasiona l heavy braking at
high speeds is recommended to clean the
brake rotors and pads¢,& .
Brake system malfunction
if you notice that the brake pedal t ravel has
suddenly gotten larger, then a brake circuit
may have failed. Drive to your authorized Audi
dealer or qualified repair facility immediately
to hav e the problem corrected . On the way
there, drive with reduced speed and keep in
mind that a long braking distance and in­
creased pressure on the brake pedal will be
necessary .
Lo w brake fluid level
When the brake fluid level is low, ma lfunc ­
tions in the brake system may occur. The
brake fluid level is electronically mon itored.
B rake bo ost er
The brake booster amplifies the pressure you
apply to the brake pedal. It only works when
the engine is running.
A WARNING ,~ ·
- You should only perform braking maneu­
vers to clean the brakes when the road
condit ions perm it. Never put others on
the road at risk -never forget the risk of
acc idents!
- On steep slopes, reduce the speed and
select a lower gea r or lowe r selector lev­
er position. Drive as litt le as poss ible
w hil e pressing the bra ke peda l and avoid
putt ing you r left foot on the brake pedal
whi le driving . This could cause the brakes
to overheat and impair the efficiency of
the brakes .
- Do not let the brakes "grind" by always
keeping yo ur foot on the brake peda l. This can cause the brakes to overheat
in-
,
crease wear and increase braking dis­
tance unnecessarily.
- Certain weather and operating condi­
tions such as driving through water, driv­
ing in heavy rain or driving after washing
your veh icle can impa ir the effectiveness
of the brakes . In the winter, ice may
bu ild up on the bra ke pads, rotors and
d rums. Che ck these components by b rak­
ing caref ully. App lyi ng the br akes care­
fu lly several times dries the brakes and
removes ice bui ld-up .
- The eff ic iency of the brakes can also be
impaired by driving for long stretches on roads covered with salt without using the
brakes. Yo u can remove salt deposits
from the brake rotors and pads by care­
fully applying the brakes several times.
- If the front spoiler is damaged or you in­
stall another spoiler, make sure the front
wheel brakes are ventilated properly.
Otherwise , the brake system could over ­
heat, wh ic h red uces their effectiveness .
- Failure of a brake circuit impa irs braking
performance, wh ic h increases bra king
d istance . Avoid driving the vehicle and
have it towed it to the nearest author­
i z ed A udi dealer or au thorized Aud i Serv­
ice Facility .
- Do not let your ve hicle roll w it h the en­
g ine switched off unde r any circumstan­
ces .
- If the b rake booste r is no t working, you
will have to press much harder on the b rake peda l to compensate for the lack
of the booster.
(D Note
- N ever le t the bra kes "rub" by pressing
t he pedal ligh tly when braking is not
really necessary . This causes the brakes
to overheat and increases braking dis ­
tance and causes wear .
- Before dr iv ing on a long stretch with
steep s lopes, reduce your speed and shift
to the next lower gear This makes use of
the engine brak ing effect and relieves .,.

226 Checking and Fill in g
- Do not add any type of radiator leak sea l­
ant to your ve hicle's engine coolant.
Adding rad iator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could result in damage not covered by your New Vehicle
Limited Warranty.
Adding coolant
Fig . 164 Engine co mpa rtment: mark in gs on the coo l­
ant expans ion tank
R ea d a nd f ollow ing th e W ARNING S before
checking anything in the eng ine compartment
¢ page 217.
Ch eck ing t he e ngi ne coolant level
"Park your vehicle on a level surface .
.. Switch the ign ition off .
" Read the coo lant level on the coolant expan­
s ion tank ¢
fig. 164. The coo lant level must
be between the markings when the eng ine
in cold. When the engine is warm it can be
sl ightly above the upper marking .
Adding coolan t
Requirement : There must be a residual
amount of coolant in the expansion tank ¢(D .
.. Let the engine cool down.
" Place a cloth over the coolant expansion
tank cap and unscrew the cap counterclock­
wise ¢&_ .
.. Add coolant mixed in the correct ratio
¢ page 225 up to the upper marking.
.. Make sure that the fluid level remains sta­
ble. Add more coolant if necessary.
" Clove the cap securely. A coolant loss suggests a
leak. Immediately
drive your vehicle to an authorized repair fa­
c ility and have the cooling system inspected.
If the cooling system is not leaking, a loss can
come from the coolant boiling through over­
heating and being pushed out of the cooling
system.
A WARNING
The cooling system is press urized and can
become very hot. To reduce the r isk of
b urns from hot coolant:
- Do not open the coolant expansion tank
cap with the engine ho t. T here is a risk of
burns.
- Stop the eng ine and a llow it to cool.
- Protect your face, hands and arms from
escaping coolant and steam by covering
the coolant tan k cap with a large, th ick
cloth.
- Turn the coolan t tank cap counterclock­
wise slowly and keep light pressure on
the cap .
- To reduce the risk of burns, do not allow
any antifreeze or coolant to drip onto the
exhaust system or hot engine compo ­
nents. The ethy lene g lycol in engine
coo lant can catch fire under certain cir­
cumstances.
- The coolant additive and the coolant can
be dangerous to your health . For this
reason, keep the coo lant in the origina l
container away from ch ildren . There is a
risk of poisoning.
- When working in the engine compart­
ment, remember that the rad iator fan
can switch on even if the ignition is
sw itched off, which increases the risk of
pe rsonal injury.
(D Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system
and damage the eng ine .
If this is the case,
do no t continue dr iving. See a n author ized
A udi dealer or authori zed Aud i Service Fa­
cility for assist ance.