2015 AUDI S3 engine coolant

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 . ...,

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

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Switchin g th e ig nition on /off or
p rewar ming
~ To switch the ignition on, turn the ignition
key to position
(D .
~ To switch the ignition off, turn the ignition
key to position @.
Diese l vehicles are preheated while the igni­
tion is switched on
II .
Starting th e engin e
Your veh icle is eq uipped with launch cont ro l.
As soon as you have turned the ignition key to position @, the engine will start automatical­
l y.
~ Press the brake peda l and move the se lector
lever to the P or N position.
~ Turn the key briefly to position @. The igni ­
tion key automatically returns to position
(D . Do not press the accelerator peda l when
do ing this.
Major electrical equipment switches off tem­
porarily when starting the engine.
It is poss ible that t here will be a slight delay
when starting the engine in diese l vehicles in
colder temperatures . Therefore , you must
ho ld the brake pedal down unti l the engine
starts . The indicator light turns on while the
engine is preheating
II .
The prewarming time depends on the coolant
temperature and outside temperature. The
glow plug indicator light
II wi ll only turn on
for approximately 1 second when the eng ine
is warm or the outside temperature is higher
than 8
°C. T hat means you can start the en­
g ine
immediately .
If the engine does not start immediately, stop
the starting procedure by turn ing the ignition
key to pos ition @and repeat after 30 sec­
onds .
Automatic star t m alfunction
If the ~ (gasoline engine) or II (diesel en­
g ine) indicator light turns on and the message
E ngin e sta rt system m alfunction . P le ase Dri
vin g 75
cont act Se rv ice
appears, there is an automatic
start malfunction.
T o start the engine, hold the ign it ion key in
pos ition @unt il the engine r uns.
Drive to an authorized Audi dealer or author­
ized Audi Serv ice Facility immediately to have
the malfunction corrected.
_& WARNING
- Never a llow the engine to run in confined
spaces - there is a risk of asphyxiation .
- Never remove the ignit ion key from the
ignition loo k while the vehicle is moving .
Otherwise the steering lock will engage
and you will not be able to steer the vehi­
cle.
- Please note that the b rake 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 steer ing
and brak ing capability is not ava ilable,
the risk of accidents or injur ies increases .
- Always take the vehicle key with you when leav ing the vehicle, even for a
short pe riod of time. This applies part ic­
ularly when children remain in the veh i­
cle. Otherwise the chi ldren could start
the engine or operate electrical equip ­
ment such as power w indows.
(D Note
- Avo id h igh engine speed, full th rottle,
and heavy eng ine load as long as the en­
gine has not reached operat ing tempera ­
t u re yet . You could damage the engine.
- T he engine cannot be started by pushing
or towing.
@) For the sake of the environment
Do no t let the eng ine run w hile pa rked to
warm up. Begin dr iv ing immediately. This
reduces unnecessary emissions.
•

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.

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Starting and stopping
the engine (vehicles
with a convenience key)
St t· th · ith the
button
Applies to vehicles: with convenience key
The I START ENGINE STOPI button switches
the ignition on and starts the engine.
Fig. 71 C en ter con sole : START ENGINE STOP b utton
(w ith conve nien ce key)
You can start your car without using your con­
venience key. You must simply be carry ing the
key with you.
Switching the ignition on/off or
prewarming
If the 'y.ij indicator light blinks and the mes­
sage
Please move steering wheel appears
when switching the ignition on, the steering is
locked by the steering lock . In this case, turn
the steering wheel slightly to the left/r ight .
.,. To switch the ignition on or off, press the
I START ENGINE STOPI button . Do not press
the brake pedal while do ing this .
Diesel vehicles are preheated while the igni­
tion is switched on
II.
Starting the engine
Your vehicle is equipped with launch contro l.
The engine starts automatically when you press the
I START ENGINE STOP I button brief­
ly .
.,. Press the brake pedal and move the se lector
lever to the P or N position.
.,. Press the
I START ENGINE STOPI button
briefly. The engine will start .
Driving 77
Major electrical equipment switches off tem­
porarily when starting the engine.
It is possible that there will be a slight delay
when starting the engine in diesel vehicles in
colder temperatures. Therefore, you must
hold the brake pedal down until the engine
starts. The indicator light turns on wh ile the
engine is preheating
II .
The prewarming time depends on the coolant
temperature and outside temperature . The
glow plug indicator light
II will only turn on
for approximately 1 second when the engine
is warm or the outside temperature is higher
than 8
°C. That means you can start the en ­
gine
immediately.
If the engine does not start immediately, stop
the start ing procedure by pushing the
I START ENGINE STOP I button again and re­
peat after
30 seconds.
Automatic start malfunction
If the GI (gasoline engine) or II (diesel en­
gine) indicator light turns on when you start
the engine, there is an automatic start mal­
funct ion .
To start the engine, press and hold the
I START ENGINE STOP I button until the engine
runs .
Drive to an authorized Audi dealer or author ­
ized Audi Service Facility immediately to have
the malfunction corrected .
A WARNING
-Never allow the engine to run in confined
spaces - danger of asphyx iat ion.
- Always take the vehicle key with you
when leaving the vehicle, even for a
short period of time. This applies part ic­
ular ly when children remain in the vehi­
cle . Otherwise the children could start
the engine or operate electrical equip­
ment such as power windows .
- Please note that the brake booster and
power steering only work when the en-
gine is running. When the engine off, you
~

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-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 the result of heat buildup or
if the engine compartment is heated by
the sun's rays 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 after the
engine is sw itched off -there is a ris k of
damaging the engine. For this reason, let
the engine run for at idle for approx imate ­
ly two minutes before shutting it off.
Starting the engine if there is a
malfunction
App lies to vehicles: with conve nience key
It may not b e possibl e to start the engine un­
der cer tain circumstances , for example if the
battery in the vehicle key is drained , if inter­
ference is affected the key or if there is o sys ­
tem mo/function.
Fig. 72 Steering co lu m n/re mote control key : Start ing
the engine if there is a ma lfunctio n
As long as the message f>l) Key not recog­
nized. See owners manual
appears, you can
start your vehicle using the emergency start
function .
"" Press the brake pedal¢.&.
in Starting the
engine with the
START ENGINE STOP but­
ton on page
77 .
.,. Press the
j;..,, s=T~A~R=T~-EN~G-I_N_E--ST--OP I button.
Driving 79
""Ho ld the master key as shown in the illustra­
tion in the location indicated
y>>) r=) fig. 72.
The engine w ill start.
"" If the engine does not automatically start,
press the
I START ENGINE STOP I button
again .
Drive to an authorized Audi dealer or author­
ized Audi Service Facility immediately to have
the malfunction corrected.
(D Tips
You can display the message that appears
during an emergency by pressing the
I START ENGINE STOP!* button.
Driver messages
Turn off ignition before leav ing car. Battery
is discharging
This message appears and a warning tone
sounds if you open the driver's door when the ignition is switched on. Switch the ignition off
so that the battery will not discharge.
Pressing start/stop button again will switch
off engine!
T his message appears when you press the
I STAR T ENGINE S TOPI* button while driving
¢ page 78, Emergency off function .
Engine start system malfunction. Please
contact Service
The engine automat ic start system has a ma l­
funct ion. Drive to an authorized Audi deale r or
authorized Aud i Service Facility immediately
to have the malfunction corrected . To start
the engine, press and hold the
I STAR T ENGINE S TOP I button.
DJ Key not recognized. See owner's manual
This message appears if there is no conven­
ience key inside the vehicle or if the system
does not recognize the key. The convenience
key may no t be recogn ized, for example, if it is
covered by an object that
disrupts the signal
(such as a briefcase), or if the key battery is
weak. E lectronic devices such as ce ll phones
can a lso interfere with the signal. ..,.

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"Full load" on the label located on the driver's
side B-pillar (visible when the door is open).
Inflate trailer t ires to tra iler and t ire manufac­
turers' specifications.
Lights
Check to make sure both vehicle and trailer
lights are working properly.
Safety chains
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave enough slack in the chains to per­
mit turning corners. When you install safety
chains, make su re they wi ll not drag on the
road when you are driving.
The chains should cross under the tra ile r
tongue to prevent it from dropping in case of
separation from the hitch.
Driving instructions
Driving with a trailer always requires extra
care and consideration.
To obtain the best poss ible handling of vehicle
and traile r, p lease note the following:
~ Do not tow a loaded tra iler when your car it­
self is not loaded.
~ Be especia lly careful when passing other
vehicles.
~ Observe speed limits .
~ Do not drive at the maximum permissible
speed.
~ Always apply brakes early.
~ Monitor the temperature gauge.
Weight distribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight. If this cannot be avoided, drive at very
low speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con ­
trol. This means that the tow vehicle should be loaded to the extent poss ible and permiss i­
ble, wh ile keeping the trailer as light as poss i­
ble under the circumstances . Whenever possi-
Trailer towing 203
ble, transfer some cargo to the luggage com­
partment of the tow vehicle while observing
tongue load requirements and vehicle load ing
considerations.
Speed
T he higher the speed, the mo re difficult it be­
comes for the driver to control the rig. Do not
drive at the maximum permissib le speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -particularly
when going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest sign of swaying .
Do not
try to stop the swaying by accelerating.
Observe speed limits . In some areas, speeds
for vehicles towing trai lers are lower than for
regular vehicles .
Always apply brakes early. When driving
downhi ll, shift into a lower gear to use the en ­
gine braking effect to s low the vehicle. Use of
the brakes alone can cause them to overheat
and fail.
Coolant temperature
The coolant temperatu re gauge <=> page 12
must be observed carefu lly. The coolant tem ­
perature can increase if you drive on long in­
clines in a low gear at high engine speeds. Re­
duce your speed immediately if the LEDs in
the top part of the display turn on.
For more information about indicator lights,
refer to .<=>
page 20.
A WARNING
Anyone not properly restrained in a mov­
ing vehicle is at a much greater risk in an
accident. Never let anyone ride in your car
who is not properly wearing the restraints
provided by Audi.
Trailer towing tips
Important to know
Your vehicle handles d ifferently when towing
a trailer because of the additional weight and ..,.
•
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~ If there was no Ad Blue left in the tank and a
range of
O mi (0 km) was displayed in the
instrument cluster, switch the ignition on
for about 15 seconds before starting the en­ gine.
_& WARNING
Ad Blue can irritate the skin, eyes and res­piratory system. If there is contact with
the fluid, flush immediately with plenty of
water. Consult a physician if necessary.
(D Note
- Only use Ad Blue that conforms to the standard ISO 22241-1. Do not mix any
additives with the Ad Blue and do not di­lute it with water .
- Do not add Ad Blue to the diesel tank or
add diesel fuel to the Ad Blue tank. Mix­
ing can lead to damage to the engine
and the Ad Blue tank system. Warranty
does not cover damage caused by this.
- AdBlue attacks surfaces such as painted
vehicle components, plastic and carpet.
Remove the fluid as quickly as possible
with a damp cloth and plenty of cold wa­
ter. If the Ad Blue has already crystal­ lized, use warm water and a sponge .
AdBlue residue that is not removed will
crystallize and can damage the affected
surface .
- Do not store the refill bottle in the vehi­ cle. If it leaks, the escaping Ad Blue could
damage the vehicle interior.
- Do not allow AdBlue to come into con­
tact with clothing . If there is contact
with the fluid, flush immediately with
plenty of water.
@ Tips
- You can obtain refill bottles from an au­
thorized Audi dealer or authorized Audi
Service Facility.
- Follow the AdBlue manufacturer's in­
structions for use and storage.
Checking and Filling 217
Hood
Working in the engine compartment
Special care is required if you are working in
the engine compartment
For work in the engine compartment such as
checking and filling fluids, there is a risk of
injury, scalding, accidents, and burns. For
this reason, follow all the following listed
warnings and general safety precautions.
The engine compartment is a dangerous
area.
c::> .&. .
_8 WARNING
To reduce the risk of injuries, complete the
following steps before opening the hood:
- Turn the engine off.
- Switch the ignition off.
- Set the parking brake.
- Place the selector lever in the P position.
- Let the engine cool down.
- Never open the hood when you see that
steam or coolant drips from the engine
compartment- there is a danger of burns! Wait until no steam or coolant
flows out .
- Keep children away from the engine com­
partment.
- Never spill fluids on a hot engine . These
fluids (such as the freeze protection con­
tained in the coolant) can catch fire .
- Avoid short circuits in the electrical sys­
tem, especially the battery .
- When working in the engine compart­
ment, remember that the radiator fan
can switch on even if the ignition is
switched off, which increases the risk of
personal injury.
- Never open the cap on the coolant ex­
pansion tank when the engine is warm.
The cooling system is under pressure.
- To protect your face, hands, and arms
from hot steam or coolant, cover the cap
with a large cloth when opening.
II>-
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