coolant AUDI S3 2012 User Guide

194 Checking and filling
Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 155 Driver' s side footwe ll: e ngin e hood release
lever
.. Open the driver's door.
.. Pull the release lever on the left under the
instrument panel
c> fig . 155 in direction of
the a rrow .
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
Fig . 156 Engine hood releas e le ve r
Before opening the eng ine hood, make sure
that the windshie ld wipers are folded flat
against the windshield . Otherwise, they could
damage the paint on the hood.
.. Pull the release lever
r=;,fig . 156 in the direc­
tion indicated by the arrow . This release the
hook under the hood .
.. Open the hood all the way.
A WARNING
-Hot engine coolant can burn you!
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo lant escaping from the eng ine
compartment . Wait unt il no steam or
coolant can be seen or heard before care­
fu lly opening the hood.
Closing the engine hood
.. Pull the hood down until the pressure from
the strut is reduced .
.. Let the hood
drop down and latch in p lace.
Do not try to push it shut; it may fail to en­
gage
c> .&, .
A WARNING
--
A hood that is not completely latched
could fly up and b lock your view while dr iv­
i ng.
- When you close the engine hood, check it
to make sure the safety catch has proper­ly engaged . The hood shou ld be flush
with the surrounding vehicle body parts.
- If you notice while dr iv ing that the hood
is not secured properly, stop at once and
close it .
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment!
Whene ve r you must pe rform any wo rk in the
eng ine compartment, for e xample chec king
and filling differ ent fluid s, the re i s a risk of
injury , burns and accident s. T o pr event p er­
s onal injury alwa ys observe the foll owing
WARNING S. Th e engin e c ompartm ent of an y
v e hicl e is a hazardou s area!
r=;, .&.
A WARNING
To help avoid injury, before yo u check any­
thing under the hood:
- Turn off the engine .
- Remove the ignition key.

-Set the parking brake fully.
- Move selector lever of automatic trans-
mission to "P" (Park); put manual trans­
mission in Neutral.
- Always let the engine cool down . Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood .
- Keep children away from the engine com­
partment .
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly.
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
ant system is pressurized and hot cool­ ant could spray out!
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- If work on the fuel system or the electri­
cal system is necessary:
-Always disconnect the battery.
- Never smoke or work near heaters or
open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever of automatic trans-
Checking and filling 195
mission to "P" (Park); put manual
transmission in Neutral.
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­
ing hot parts . Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine .
- Minimize exposure to emission and
chemical hazards~&. .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the State of California to cause cancer and
birth defects or other reproductive harm.
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
Q) Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur .
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer. •
•

196 Checking and filling
Engine compartment
2.0 liter 4-c tinder turbo gasoline engine (200 hp)
Applies to vehicles: with 2.0 l turbo, 4-cylinder engine
These are the most important items that you can check.
(]JD[) £. C. l"E. t .,.."-.., &t".
~ ------
fig. 157 Engine compartment: 2.0 L, 4-cylinder tu rbo
(!) Coolant expansion tank (- L) .. .
@ Windshield washer conta iner
( ffi
) ,... ...... ........... .... .
® Eng ine oi l dipstick (orange) .. .
@ Engine oil filler cap ('1:::r.) .. .. .
® Brake fluid reservo ir ((0)) .... .
@ Battery .. ..... ..... .... .. . .
204
211
200
200
206
207
A WARNING
-Before you check anything in the engine
compartment, always read and heed a ll
WARNINGS c:> &. in Working in the engine
compartment on page 194.
-

Checking and fillin g 197
2.0 liter, 4-cylinder turbo diesel engine (140 hp)
Applies to vehicles: with 2.0 l TOI, 4-cylinder diese l-engin e
These are the most important items that you can check .
Fig. 158 Engine compartment: 2.0 l, 4-cylinder tu rbo
(D Coolant expansion tank ( ... t) .. .
@ Windshield washer container 204
Cw)
.............. ...... . . 211
@ E ng ine oi l dipstick (orange) . . . 200
@ Engine oil filler cap ("t!::r.) . . . . . 200
® Brake fluid reservo ir ((0)) . . . . . 206
® Battery . . . . . . . . . . . . . . . . . . . . 207
A WARNING
Before yo u check anything in the engine
compartment, always read and heed all
WARNINGS ¢&. in Working in the engine
compartment on page 194.
-
Engine oil
Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil.
The engine in your Audi is a sophisticated powerplant that was built to exacting specifi­
cations . Th is eng ine needs the right kind of
engine oil that meets specifications regarding
quality and viscosity so that it can run
smoot hly and reliab ly. Choosing the right o il
and changi ng oil within the t ime and mileage
intervals printed in you r vehicle's Warranty
&
Maintenance booklet matters a lot more to ­
day than it did years ago . Audi has developed
a specia l quality standard for engine oil that
will help assure that your vehicle's engine w ill
get the lubr ication it needs for proper opera­
tion.

luggage compartment. Make sure the
container is securely stored and mount­
ed.
0 Note
-If you use engine oil that does not ex­
pressly conform to Audi oil specification
VW 507 00, very serious and very expen­
sive damage to your vehicle 's engine will
occur . Engine damage caused by using
the wrong engine oil is not covered by
your New Vehicle limited Warranty .
- Not all commercially available oils con ­
form to this very rigid Audi oil quality
standard even though they may be syn­
thetic-based and have the same viscosi­
ty.
Engine cooling system
Coolant
T he engine coolant performs two functions: it
keeps the engine from overheating and it pro­
tects the engine from freezing in the winter.
The cooling system is sealed and generally re­
quires little attention.
The cooling system has been filled at the fac­
tory with a permanent coolant which does not need to be changed. The coolant consists of a
mixture of water and the manufacturer's gly­
col-based coolant additive Gl2++ antifree ze
with anticorrosion additives (50% for USA models; 60% for Canadian models). This mix ­
ture both assures the necessary frost protec­
tion and protects metal components in the
engine 's cooling system from corrosion and
scaling.
It also raises the boiling point of the
coolant.
Do not reduce the concentration of the cool­
ant in the summer by adding plain water.
The
proportion of coolant additive must be at
least 50% but not more than 60%
to main­
tain antifreeze protection and cooling efficien­
cy. If the coolant frost protection is too low,
the coolant could freeze and damage the vehi­
cle heating and engine cooling system.
Checking and filling 203
For year-round driving, antifreeze is added at
the factory for temperatures down to:
--31°F(-35°C)USA
- - 40 °F ( - 40 °C) Canada.
You can mix the Gl2 ++ coolan t additive with
other additives Gl2 + or Gl2. Always check
with your authorized Audi dealer .
A WARNING
-
Before you check anything in the engine
compartment, always read and heed all
WARNINGS~
& in Working in the engine
comportment on page 194.
(D Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the
win­
ter is extremely cold. If necessary, in­
crease the proportion of coolant additive
to 60% .
- When adding coolant additive to your
cooling system, remember :
- We recommend using only coolant ad­
ditive G 12++ (check the label) for your
vehicle. This coolant additive is availa­
ble at authorized Audi dealers. Other
types of antifreeze can significantly re­
duce corrosion protection. The result­
ing corrosion can cause a loss of cool­
ant and serious engine damage.
- Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant.
Adding radiator 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.
•
•

204 Checking and filling
Checking the engine coolant level
The engine coolant level can be checked with
a quick glance .
Fig. 162 Engine compartme nt: coo lant expansio n tank
Before you check anything i n the eng ine com­
partment,
a lw ays rea d and h eed all WARN­
ING S ¢&. in Working in the engine compart­
ment on page 194.
.. Park your vehicle on a level surface.
.. Turn
off the ignit ion .
.. Read the eng ine coolant leve l from the
coolant expansion tank<=>
fig. 162 . With a
cold eng ine, the coo lant level should be be­
tween the "min" and "max" markings . When
the engine is warm, the level may be slightly above the "max" marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
i:> page 196.
To obtain an accurate read ing, the engine
must be switched
off.
The expansion tank in yo ur vehicle is equipped
with an e lectric coolant level sensor .
When the coolant level is too low, the warning light in the Auto -Check System
c> page 17 w ill
blink until you add coo lant and the level has
been restored to norma l. Even though there is
an electric coolant level sensor, we still rec­
ommend you check the coolant level from
time to time.
Coolant lo ss
Coolant loss may indicate a le ak in the cooling
system . In the event of coolant loss, the cool­
ing system should be inspected immediately by your authorized Audi dea
ler .
It is not
enough merely to add coolant .
In a
se aled system, losses can occur on ly if
the boiling point of the coo lant is exceeded as
a res ult of overheating.
(D Note
Do not ad d any type of radiator leak sea l­
ant to your veh icle's engine coolant . Add­
i ng radiator repair fl uid may adverse ly af ­
fect the funct ion and performance of your
cooling system and could result in damage not covered by your New Veh icle Limited
Warranty .
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the eng ine com ­
partment,
a lw ays re a d and heed all WARN­
INGS c::> A in Working in the engine compart ­
ment on page 194 .
.. Turn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank
c::> page 204, fig . 162 and ca refull y
twist the cap counter-clockwise c::> A.
.. Add coo lant .
.. Twist the cap on aga in
tightly .
Replacement engine coolant must conform to
exact spec ificat ions
c::> page 203, Coolant.
Even in an emergency, if coolant addi-
t ive G12++ . G 12+ or G12 is not ava ilable, do
n ot use a d iffe rent addit ive. Use plain water
instead unt il you can get the correct add itive
and can restore the correct ratio. This shou ld
be done as soon as possible .
If you have lost a considerab le amou nt of
c oolant, then you sho uld add cold ant ifree ze
and co ld wate r on ly when the engine is cold.
Always use
new engine coo lant when refilling .
Do not f ill coolant above the
"MAX" mark. Ex­
cess coolant will be forced out through the
pressure relief valve in the cap when the en -
gine becomes hot .
Iii>

& WARNING
-The cooling system is under p ress ure and
can get very hot . Reduce the risk of
sca ld ing from hot coo lant by following
these steps.
- Tur n off the engine and a llow it to cool
down.
- Protect your face, hands and arms from
escap ing flu id and steam by cover ing
the cap wi th a large, thick rag.
- Tu rn the cap slowly and very ca refully
i n a cou nte r-clockw ise d irect ion w hile
ap ply ing ligh t, downw ard press ure on
the top of the cap.
- To avo id being burned, do no t sp ill an­
tifreeze o r coolan t on the exhaust sys­
tem or hot engine parts. Under certa in
conditions, the ethylene glyco l in en­
gine coolant can catc h fir e.
- An tifreeze is poisonous . Always store an ­
tifreeze in its or iginal co ntainer and we ll
o ut o f the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a p roper con­
tainer clearly marked "poison".
(D Note
- Coolant po llutes the env ironment and
could cause an engine fire. Excess coo l­
ant wi ll be forced out throug h the pres ­
su re re lief va lve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the cor rect ratio between water
and antifreeze
c:> page 203 must be re­
stored as soon as possib le.
@) For the sake of the environment
Drained coolant shou ld n ot be re used. Al­
ways dispose of used coolant while obse rv­
ing all environmental regulations.
Checkin g and fillin g 205
Radiator fan
The radiator fan switches on automatically by
itself .
The electric radiator fan is controlled by ther­
moswitches t hat sw itch on a nd off depending
o n coo lant and eng ine compartment tempera ­
tures .
An a uxiliary electric radiator fan* sw itches on
and off depending on coolant temperature
and othe r vehicle operat io n conditions.
After switching off the eng ine, the auxiliary
fan -even with the ignition off -can continue
runn ing for up to 10 minutes. It ca n even
switch on aga in later by itself
c:> A , if
- the temperature of the engine coo lant rises
due to the heat build-up from the engine in
the engi ne compartment , or
- the engine compa rtment heats up because
the vehicle is parked in intense sunlig ht.
& WARNING
- To reduce the risk of personal in ju ry nev­
er touch the radiator fan .
- The auxiliary electric fan is temperature
contro lled a nd can switch on suddenly
even when the engine is not ru nning.
- The a uxiliary radiator fa n sw itches on a u­
tomatically when the engine coo lant
reaches a certa in te mpera tu re and w ill
con tinue to ru n until t he coo lant temper­
a ture drop s.
•
•

charged better then vehicles without this sys­
tem . To make sure the additional e lectrica l en ­
ergy is available once again after you have
changed the battery, we recommend that you install batteries of the same type and manu­
facture only (the same as those installed at
the t ime your vehicle was delivered). Specifi­
cations are listed on the battery hous ing . Your
authorized dealer must code the battery in
the energy management system to enable yo u
to use the energy management functions cor­
rectly after replacing the bat tery.
If it is not possible to use a battery of this
type, the new battery must have the same ca­
pacity, voltage (12 volts) , amperage, con ­
struction and plug sealing.
We re commend that you use ma intenance­
free or
cy cle -re sis tant /le ak-proof batteries
that conform to the standards TL
825 06
(from December 1997) and VW 7 SO 73 (from
Aug ust 2001).
When insta lling the bat tery , make sure the ig­
n ition and all e lectrica l consumers are turned
off .
CD Note
-Make sure tha t the gas venting hose is
always connected to the o riginal open ing
on the battery side . Otherwise gasses or
battery acid could leak out.
- Battery mounts and clamps m ust always
be secured correctly.
- Read and follow the warnings under
C? page 208, Working on the battery be ­
fore performing any work on the battery .
@ For the sake of the environment
Because of the problem of proper d isposa l
o f a battery, we recommend your author ­
ized Audi dealer change the batte ry for
you. Batteries contain su lfuric ac id and
lead and must always be disposed of prop­
erly in compliance w ith all environmental
regu lations . D isposing of vehicle batte ries
improperly is very dangerous to the envi­
ronment. Make sure that the removed bat-
Checkin g and fillin g 211
tery cannot overbalance, otherwise su lfu ­
ric acid might escape!
Windshield washer container
Using plain water is not adequate for filling
the $ windshield washer system .
Fig. 166 En gin e compart men t: w in ds hield washer flu­
i d co ntai ner
The windshield washer fluid container is locat­
ed on the right side of the engine compart­
ment ~
fig. 166. The washer fluid conta iner is
marked w ith the symbol $ is on its cap .
.,. Before you check anything in the engine
compartment, always
read and heed all
W ARNINGS ~ _&. in Working in the engine
compartment on page 194.
.,. Lift the fil le r ca p tongue to add washer flu ­
id. You can fi ll the container to the top.
.,. Press the cap back onto the f iller neck after
f illing the container .
You can find the reservo ir
capacity in t he t able
in
C? page 257.
Clean water should be used when filling up . If
poss ible, use soft water to prevent scaling on
the washer jets. Always add a glass cleane r
solu tion (with frost protection in t he win ter).
CD Note
Do not mix engi ne coolant antifreeze o r
a ny o ther addi tives to fill up the wind­
sh ield washer rese rvoi r.

-Never mount used tires on yo ur vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items wh ich may be rep laced)
of automa tic tra nsmission, power steering,
power br akes, power w indows, power sea ts,
radio, and heater, to the ex tent that these
items are avai lab le as factory -installed equip ­
ment (whether installed or not).
Aspect ratio
means the rat io of the height to the w idt h of
the tire in percent. Numbers of 55 or lower in ­
d icate a low sidewall fo r improved s teer ing re ­
sponse and better overall handling on dry
pavement.
Bead
means the pa rt of the t ire t hat is made o f
s teel wires, wrapped o r rein force d by ply cor ds
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead.
Cord
means the strands forming the plies in the
tire.
Cold tire infl ation pressure
means t he tire pressure recommended by the
vehicle manufacturer for a t ire of a designated
size that has not been dr iven for more than a
couple of miles (kilometers) at low speeds in
the three hour period before the tire pressure
i s measu red or adjusted.
Tire s an d wheel s 213
-If you notice un usua l vibration or if the
veh icle pulls to one side when driv ing, a l­
ways stop as soon as it is safe to do so and check the wheels and tires for dam­
age.
Curb weight
mea ns the we ight of a motor ve hicle w it h
standard equipment in cl ud ing t he maximum
capa city of fuel, o il, and coolant, ai r cond i­
tion ing a nd addi tional weig ht o f optiona l
equipment .
Extra load tire
means a t ire designed to operate at higher
loads and at highe r inflat ion p ressu res tha n
th e co rresponding standard tire. Extra load
tir es my be i dent ified as "XL", "xl", "EXTRA
L O AD", or "R F" on t he sidewall.
Gross Axle Weight Rating ("GAWR ")
mea ns the load-carry ing capac ity of a s ingle
axle system, measured at the tire-ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
means the maximum total loaded we ight of
the ve hicle.
Groove
means the space between two adjacent tread
ribs.
Load rating (code )
means the maximum load tha t a t ire is rated
to carry for a given inflation press ure. Yo u
may not find this information on all tires be­
ca use it is not required by law.
Maximum load rating
me ans the load r ating for a tire at the maxi­
mum pe rm issi ble inf lat ion pressure for that
ti re . •
•
...

220 Tire s and wheel s
-Only when all tires on the vehicle are fi l­
led to the correct pressure, the tire pres­
sure monitoring system* can work correctly .
- The use of incorrect tire pressure values
can lead to accidents or other damage.
Therefore it is essential that the driver observe the specified tire pressure va lues
for the tires and the co rrect p ressu res fo r
the f unct ion of the tire pressure mo nitor­
ing system*.
- Always inflate t ires to the recommended
and co rrec t tire pressu re before d rivi ng
off.
- Driv ing with under inflated ti res bend
more, lett ing them get too ho t res ulting
in tread separation, sudden t ire fail ure
and loss of control.
- E xcess ive speed and/overloading can
cause heat bui ld -up, sudden t ire fail ure
and loss of control.
- If the tire press ure is too low or too high,
the tires wi ll wear prematu rely and the
vehicle will not hand le we ll.
- If the t ire is no t flat and you do not have
to change a wheel immediate ly, drive at
reduced speed to the nearest service sta­
t ion to check the tire pressure and add
air as required.
Driving without va lve stem caps can cause
damage to the tire va lves. To prevent this,
always make sure that facto ry installed
valve stem caps on all wheels are secure ly
mounted on the valve.
@) For the sake of the environment
Underinf lated tires will a lso increase t he
fue l consumption .
Tires and vehicle load limits
There are limits to the amount of load or
weight that any veh icle and any t ire ca n car ry .
A veh icle that is overloaded w ill not ha ndle
well a nd is more difficult to s top. Over load ing
c a n no t on ly lead to loss of veh icle con tro l, but can also damage important parts of the
vehicle and ca n lead to sudden tire fai lure, in ­
clud ing a b lowout and sudden deflation that
can cause the vehicle to crash.
Your safety an d that of your passengers also
depends on making sure that load limits are
not exceeded . Vehicle load includes everybody
and everything in and on the veh icle. These
load lim its are technically referred to as the
vehicle's
Gro ss Vehicle Weight Rating
("GVWR").
The "GVWR" includes the weight of the basic
vehicle, a ll factory installed accessories, a full
tank of fuel, o il, coolant and other fluids plus
maximum load. The max imum load incl udes
the number of passengers that the vehicle is
i ntended to car ry ("seat ing capac ity ") with an
a ss u med we igh t of 150 lbs (68 kg) for e ach
passenge r at a designated seating posi tion
and the total weight of any luggage in the ve ­
hicle . If you tow a trai ler, the weight of the
trai ler hitch and the tongue weight of the
loaded tra iler must be included as part of the
vehicle load.
T he
G ros s Axle Weight Rating ("GAWR") is
the maximum load that can be applied at each of the vehicle's two axles.
The Gross Vehicle Weight Rating and the Gross Ax le Weight Rating are listed on the
safety comp liance sticker label located e ither
on the dr iver's s ide B-pillar or on t he ins ide of
the fuel filler flap . Your Audi has 5 sea ting po­
s itions, 2 in the front and 3 in the rear for to ­
tal seating capacity of 5 . Each seat ing pos ition
has a safety belt
q page 113, Safety belts.
The fac t that there is a n upper limit to your
vehicle's G ross Vehicle Weight Rating means
that the total weight of whatever is bei ng car­
ried in the vehicle ( in cl ud ing the weight of a
t ra ile r hi tc h and the tongue we igh t of the
loaded trail er) is lim ite d. T he more p assen­
gers in the vehicle or passengers who are
heavier than the standard weights assumed
mean that less weight can be carried as lug-
gage.
~