oil level AUDI RS5 CABRIOLET 2013 Owners Manual

Instrument s and warning /indicator lights 11
,&_ WARNING
- Always observe the warning in
¢ page 200, Engine compartment, be­
fore opening the hood and checking the
engine coolant level.
- Never open the engine hood if you see or
hear steam, or if you see engine coolant
dripping from the engine compartment.
You could burn yourself . Let the engine
cool off first so that you cannot hear or
see any steam or engine coolant .
(D Note
-Mounting additional lights or accessories
in front of the air inlets reduces the cool­
i ng effect of the radiator . At h igh outside
temperatures or high engine load, the
engine could overheat.
- The front spo iler has been designed to
properly distribute the cooling air when
the veh icle is moving. If the spoiler is
damaged, this could reduce the cooling
effect and the engine could then over­
heat. Ask your authorized Audi dealer for
assistance.
Tachometer (engine rev counter)
The tachometer indicates the engin e RPM
(r evolutions per minutes).
If engine RPM d rops be low 1,500 , you should
downshift to the next lower gear. The red area
at the end of the scale indicates maximum
permissible engine RPM after the break-in pe­
riod . Before reaching this a rea, move these­
lector lever to position D/S or ease your foot
off the accelerator pedal.
(D Note
The tachometer needle@¢ page 10,
fig . 3
shou ld only briefly be in the red
zone: you could damage your engine! The
beg inning of the red zone varies depend­
ing on the engine.
@) For the sake of the environment
Upshifting early saves fuel and reduces en­
gine noise.
~ button
You can perform different functions with this
button.
Fig. 4 SET button in th e in strument cl uste r
The !SET ! button performs the following func­
tions :
Switching on time, date, temperature
display , and odometer
The display appears for approximately 30 sec­
onds when you press the
!S ET I button ¢ fig. 4
with the ignition off.
Starting the Auto-Check sequence
The Auto-Check system constantly monitors
certain individual functions and components
of the vehicle when the ignition is turned on
and when the vehicle is moving .
With the ignition turned on, you can start the "Auto-Check sequence" by pressing the
! S ET !
button . You can perform an Auto-Check se­
quence when the vehicle is stationary and the
ignition is turned on or when the veh icle is
moving slower than 3 mph (5 km/h).
I n addition, the number of keys init ialised for
your vehicle is disp layed .
L2 3/3 means that
three keys have been initialised. This feature
enables used car buyers to ma ke sure they
have received all of the keys.
If you are given only two keys, for instance,
you should take the vehicle and the existing
keys to an Audi dea ler to have the missing key
II>-

Instrument s and warnin g/indic ator ligh ts 13
(D Note
Never run the tank completely dry! An ir­
reg ular supply of fuel can cause eng ine
m isfiring and fuel could enter into the ex­
haust system. The catalyt ic converter
could the n overheat and be damaged .
Warning/indicator
Lights
Description
The indicator lights in the instrument cluster
blink or turn on . They indicate functions or
malfunct ions ¢,&. .
Messages may appear with some indicator
lights. A warning signal will sound at the
same time . The messages disappear again af­
ter a short t ime . To display a message again ,
pressthelSE T!button
¢ page 11. If severa l
malfunc tions occu r, each of the indica to r/
warn ing lamps will be d isplayed in succession
for abo ut two seconds at a time .
Some ind icators lights in the disp lay can turn
on in several colors.
_& WARNING
- F ailure to heed warning lights and o ther
impor tant vehicle info rmation may result
in serious persona l injury o r vehicle dam­
age.
- Whenever sta lled or stopped for repair,
move the vehicle a safe distance off the
road, stop the engine, and turn on the
eme rgency flasher¢
page 54.
-The e ngine compartment of any motor
vehicle is a potentially hazardous area.
Before you check anything in the engine
compartment, stop the engine and let it
cool down. Always exercise extreme cau­
t ion when wor king under the hood
¢ page 200, Engine compartment
(D Tips
Ma lfunctions or faults w ill be identified ei­
ther with a red symbo l (pr io rity 1 -Dan- ger!) or with a yellow symbol (prio
rit y 2 -
Warning).
' Overview
Some indicator lights t urn on briefly to check
the function of that system when you switch
the ignit ion on . These systems are marked
with a../ in the fo llow ing tables . If one of
these indicator lights does not tu rn on, there
i s a ma lf u nct ion in that system.
Red indicator lights
Red symbo ls indicate a prior ity ma lfunction -
Danger!
- Pull off the road .
- Stop the vehicle.
- Tur n off the engi ne.
- Check t he malfunc tioning system. Contac t
your author ized A udi dealer or a q ualified
workshop for assistance.
USA models :
Brake system../
¢page 15
----~r~
Canada models:
Brake system ../
¢page 15
USA mod els :
Elec tromech anical parki ng br ake
¢ page 16
Canada models:
Electromechanical parking brake
¢page 16
Safety be lts
¢ page 17
Electromechanical steering ../
¢page 180
Battery
¢page 17
Engine oil pressure
¢page 17
Eng ine oil level
¢page 17

Instrument s and warnin g/indic ator ligh ts 17
dealer or qualified workshop immediately to
have the ma lfunction corrected.
,(,_ Safety belts
This warning/indicator light reminds you to
put on your safety belt.
The . warning/ind icator light illuminates
when the ignition is sw itched on to rem ind
the driver and any front passenger to put on
the safety belt. Additionally, an acoustic warn­
i ng (gong) will a lso sound .
F or more Information¢
page 129, Safety
belt warning light .
0 Battery
The. warning/indicator light illuminates
when you switch on the ignition and must go
out after the engine has started.
• Altern ator fault: Batte ry is not being
c ha rged
If the i ndicator light turns on and the mes ­
sage appears, there is a malfunction in the
generator or vehicle e lectrica l system .
D rive to you r autho rized Aud i dea ler or quali­
fied workshop immediately . Bec ause the vehi ­
cle battery is discharging, turn
off a ll unnec ­
essary electrical eq uipment such as the radio .
Seek professional assistance if the battery
charge leve l is too low.
(•) Lo w b atter y: B att ery wi ll be charg ed
while dri ving
If the indicator lig ht turns on and the mes­
sage appears, the re may be limited start ing
ab ility .
If t his message turns
off after a litt le while,
the battery charged enough wh ile driving.
If the message does not turn
off, have your
author ized Audi dealer or qualified workshop
correct the malfunction .
"l::;r: Engine oil pressure
The red engine oil pressure warning symbol
requires immediate service or repair . Driving
with a low-oil-pressure indication is likely to
inflict severe damage to the engine .
• Turn off eng ine! Oil pressure too l ow
If the indicator light turns on and the mes­
sage appears, the oil pressure is too low.
.. Pull
off the road .
.. Stop the vehicle.
.. Turn
off the engine.
.. C heck the engine oil le vel ¢ page 212.
.. If the eng ine o il level is too low, add eng ine
oil
¢ page 212. Make sure that the oil pres ­
sure warning symbol. appears no longer
in the display befo re you sta rt dr iv ing again.
""I f the eng ine o il level is correct and t he i nd i­
ca to r li ght still turns on, turn the eng ine
off
and do not continue driv ing. Seek professio­
na l assistance .
(D Tips
- The engine oil pres sure sy mbol. is
not an indicat or for a low engine oil lev­
el. Do not rel y on it . Instead, check the
o il level in yo ur engine at regula r inter ­
v als, p referably each time you refuel ,
and always before going on a long trip .
- The yellow oil level wa rn ing indication
Ill req uires oil refill or wo rkshop serv ­
ice without delay. Do not wait until th e
red oil p ressur e warning. st a rt s to
fla sh before you respond to the low oil
level warning
111 -By th en, your engin e
may already have suffered seriou s dam ­
age .
~ .. Engine oil level
• WARN ING: Ple ase add o il immed iatel y
If the indicator ligh t and the message appear,
add engine oil immedia tely
¢ page 212.

Instrument s and warnin g/indic ator ligh ts 21
Contact your authorized Audi dealer and have
the ma lfunction correct ed .
An improperly closed fuel fi ller cap may also
cause the MI L light to illum inate ¢
page 204.
For more informat ion c;> page 29 .
!?) Engine speed limitation
App lies to vehicles: wit h engine speed lim itation
(II D o not exceed m ax . e ng in e s pee d of
XXXX rpm
The engine speed is automatically lim ited to
the speed disp layed in the driver information
system. This protects the engine from over­ h eat ing.
The engine speed limitation deactivates once
the eng ine is no longer in the cr it ica l tempera­
ture range and you have released the acce lera­
tor peda l on ce.
If the engine speed lim itation was act ivated
by an eng ine control malfunction , the ind ica­
tor light
(3B also turns on . Make sure that the
speed does not go above the speed displayed .
Drive to yo ur authorized Audi dea ler immedi­
ately to have the malfunction corrected .
~. Engine oil level
Ill A dd oil , m ax XXXX l. You ma y cont. d riv.
When the symbo l Ill and driver message ap ­
pea r, add the amount of oi l appearing in the
disp lay at the next opportunity
c;> page 212.
~ ;,,. Engine oil sensor
II Oil le vel! Se nsor defecti ve
If the symbol illuminates, contact your au­
thorized Audi dealer and have the oil sensor inspected . Until you have this done, check the
oil leve l each time you refuel just to be on the
sa fe side
c;> page 212 .
Bil Tank system
J.ll Please r efu el
If the indicator light turns on for the first
time and the message appears, there are
about 2. 1 -2.4 gallons (7 -9 liters) of fuel left
in the tank . T ime to refue l¢
page 203.
Ii] Fuel tank sy stem malfunction! Co ntact
dealer
If the indica tor l ight turns on and this mes­
sage appears, there is a malf unct ion in the
tank system.
D rive to your authorized Audi dealer immed i­
ate ly to have the ma lfunction corrected.
<:::> Windshield washer fluid level
- Pleas e refill wa she r fluid
If the symbol illum inates, add w indshie ld
washe r flu id to t he washer sys tem and also to
the headligh t washe r system* ¢
page 2 21.
'1:> Windshield wipers
El'J Windshield wipe r defecti ve
T he re is a malfunction with the windshield
wipe rs.
Drive to your authorized Audi dealer immedi­
ate ly to have the ma lfunction corrected .
~/0$ Defective light bulb warn ing
If the Fl indicator light turns on, a b ulb has
failed. The message ind icates the location of
the bu lb .
- I f the
mJ indicator light a lso turns on, then
a rear fog light has failed . T he position of
t he indicator light cor responds wi th the lo ­
cation on the vehicle .
T his wa rning can also occu r if the light switch
is in an unengaged posi tion between two sym­
bols .
Vehicl e lights: S yste m fau lt !
If the message appears, there is a malfunc­
tion in the headlights or light sw itch .
Drive to your authorized Audi d ealer immedi-
ate ly to have the malfunction corrected .
I),

A WARNING ,~
After driving through water, mud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
the brakes first by braking carefully to re­
store the full brak ing effect.
([) Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through wate r.
@ Tips
- Check the depth of the water before dr iv­
i ng through it.
- Do not stop the veh icle, dr ive in reverse
or switch the engine off when driving
th rough water.
- Keep in mind that oncoming vehicles may create waves that raise the water
level and make it too deep for you r vehi­
cle to drive through safely.
- Avoid dr iving through salt water because
i t can cause corrosion.
Warming up and
cooling down
By carefully warming up and cooling down
your vehicle, you can he lp ensure that it is not
overstressed unnecessarily during sporty driv­ ing.
When warming up, the vehicle is driven at a maximum engine speed of 6000 RPM in order
to raise the engine oil temperature to a mini­ mum of 140 °F (60 °C) . The tires also only
reach their full road holding capability once
they have warmed up .
The cooling fan can continue to run in your ve­ h icle after the engine is switched off. Howev­
er, driving the vehicle to cool it down is part ic­
ularly important . Du ring sporty driving, the
engine and brakes, the exha ust system, and
the transm ission all become ext remely hot.
Before you park the vehicle, you shou ld drive
Dri vin g and en vironm ent 185
it for a few miles/kilometers at light load in
the low rpm range to allow it to cool down.
Catalytic converter
It is very important that your emission con­
trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in on environmentally sound manner.
"" Always use lead-free gasoline c> page 202,
Fuel supply.
"" Never run the tank down all the way to emp­
ty.
"" Never put too much motor o il in your engine
<=> page 212, ~ Adding engine oil .
""Never try to push- or tow-sta rt you r vehicle.
The catalyt ic converter is an efficient "clean­
up" device bui lt into the exhaust system of
the ve hicl e. The cata lytic conve rter bu rns
many of t he pollutants in the exha ust gas be­
fo re t hey are re leased into the atmosphere.
The exclusive use of unleaded fue l is critically
important for the life of the catalyt ic convert­
er and proper funct ion ing of the engine.
A WARNING ~
- The temperature of the exhaust system
is high, both when driving and after stop ­
ping the engine.
- Never touch the exhaust tail pipes once they have become hot . This could result
in burns .
- Do not park or operate the vehicle in areas where the hot exha ust system may
come in contact with dry grass, brush,
fuel spill or other material wh ich can
cause a fire.
- Do not apply additional undercoating or rustproof ing on or near the exhaust
manifold, exhaust pipes, catalytic con­
verter or heat shields . Dur ing driving, the
substanc e used fo r undercoating could
overheat and cause a fire. •
•

186 Driving and en vironm ent
-Be aware that just one tank fi lling with
le a ded fuel will already seriously de­
grade the performance of the catalytic
converter.
- Do not exceed the correct engine oil leve l
qpage 212.
-Do not drive until the fuel tank becomes
completely empty. The eng ine could mis­
fire. Unburned fuel could also get into
the exhaust system and this could cause
t h e catalyt ic converte r to overheat.
- Do not turn off the ignition while the ve­
hicle is moving.
- Do not continue to operate your vehicle
under these conditions, as otherw ise fuel
can reach the catalytic converter. This
could result in overheat ing of the co n­
ve rter, req uiring its repla ceme nt.
- To assure efficient operation of the Emis­
s ion Control System:
- Have your veh icle maintained properly
and in accordance with the service rec ­
ommendations in your Warranty
&
Ma intenance booklet.
- Lack o f proper maintenance as well as
improper use of the vehicle will impa ir
the funct ion of the emission control
system and cou ld lead to damage.
@) For the sake of the environment
Even when the Emission Control System is
operati ng properly, the exhaust gas can
have a sulfur-like exhaust gas smell under
some operating sta tes. This depends on
t he s ulfur content of the fue l being used .
Using a differe nt brand of fuel may help,
or filling the t ank w it h lead-free super
grade gaso line .
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex ­
haust and noise levels.
F uel economy, environmenta l impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving s tyle
- oper ating conditions
- technical limitat ions
If you ant ic ipate what you need to do next and
drive economica lly, you can easily cut your
fuel consumpt ion by 10-15 percent . This sec­
t ion w ill give you some tips on how you can
help the env ironment and your po cketbook.
@ Tips
The consumption estimates as published
by ENVIRON MENTAL PROTEC TION AG ENCY
( EP A) and Transpo rt Canada may no t corre­
s pon d to your actual consump tion on the
r oad, which will va ry depending upon vehi ­
cle load and speed, road and weather con ­
dit ions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they ore ac­
celerating.
.,. Avoid unnecessary accelerating and brak ing.
Vehicles use the mos t fu el when they are ac­
ce le rat ing. If yo u ant icipate what is going to
happen next, you will need to brake less and,
t hu s, acce le rate less . Let the vehicle coast
whenever possible -for examp le when you see
t h at the next traff ic light is red.

210 Check ing and filling
Modern engine lubrication has taken a quan­
tum leap in the last few years. Many synthetic
oils ava ilable today provide better engine lu­
brication that can outlast traditional petrole­
um-based oils, making them a smart choice
for use throughout the life of your Audi .
Whether you use synthetic or petroleum ­
based engine oil, the oil that you use must
conform to Audi 's oil quality standard
VW 502 00 to he lp keep your vehicle's engine
running smoothly and help prevent the for­
mat ion of harmfu l deposits, sometimes called
"sludge ", that ove r time can lead to expensive
repairs .
At the time of pr int ing , engine o ils available in
the U .S . and Canada that meet the exacting
specifi cations of Audi oi l standard VW 502 00
a re synthetic engine oils. This does not mean,
however, that every syn thetic engine oil will
meet Audi oil standard VW 502 00. So always
be sure that you use an approved oil.
To help prevent the format ion of harmful de ­
posits use only oi l with the fo llowing specifi­
cations printed on the oil container :
Audi oil standard VW 502 00
O il container labe ls may carry the specif ica ­
tion s ingly or in comb inat ion with other des ig­
nations and oil qua lity standards .
Viscosity
Engine oi ls are graded according to their vis­
cosity. The proper viscosity grade oil for your
engine depends on cl imactic or seasonal con­
d itions where you drive. You can use oil with a
viscosity grade of SA E SW40 across all tem ­
pe ratu re ranges for normal driving conditions .
However, if eng ine o il viscos ity grade SA E
SW40 is not avai lab le, you can also use viscos­
ity grade SAE SW -30 or SAE OW-40 as long as
it meets Audi o il quality standard VW 502 00
specif ications .
Because engine oil that meets the Audi oil
standard may not be available everywhere
when you need it, we strongly recommend
that you always carry with you an ext ra quart (
li te r) of oil that exp ress ly con forms to the
VW 502 00 spec ification, in case you have to
top
off the oil while on the road.
Only if the level of the o il is a t or be low the
min imum mark -and no oi l that expressly
conforms to Audi oil standard VW 502 00
specifications is available - may you top
off
with a high quality engine o il, preferab ly syn ­
thet ic-based, tha t mee ts ACEA A3 or API SM
specifications, but even then , only in v iscosity
grades SAE SW-40 , SAE SW-30, o r SA E
OW-40. However, dur ing the entire time be­
tween oil change inte rva ls , never top
off with
more than a total of 0.5 q t/ liter engine o il
t h at does not con form to Audi oi l specification
vw 502 00.
For more informa tion about eng ine oi l tha t
has been approved for your veh icle, please
contac t either yo ur authorized Aud i deale r or
Audi C ustome r Re lations at 1 (800) 822 -2834
or visit our web site at www .audiusa.com or
www.aud icanada .ca. Here you w ill also find a
current list of oils (manufacturers, brand
names e tc.) tha t conform to Audi oil s tanda rd
vw 502 00 .
Changing the engine oil
The eng ine oi l and oil fi lter must be changed
according to the mileage (kilometers) and
time intervals specified in your ve hicle's War­
ranty
& Maintenance booklet. Do not exceed
these intervals -harmful deposits from old
engine oil ca n reduce eng ine performance and
can lead to expensive engine repa irs .
Changi ng the oil at the recommended inter­
vals is so very important because the lubricat­ ing proper ties of oil decrease gradually during
norma l veh icle use . If you are not sure when
you have your oil changed, ask your author­ ized Audi Serv ice Adv isor.
Under some circumstances the engine oil
shou ld even be cha nged more frequent ly .
Change oil more often if you drive mostly
sho rt distances, operate the ve hicle in dusty
areas o r most ly unde r stop-and-go t raff ic con-
di tions, o r when you use your vehi cle where .,..

temperatures stay below freezing point for l ong periods.
Detergent add itives in the o il w il l make fresh
oil look dark after the eng ine has been run ­
ning fo r a short time . This is norma l and is not
a reason to change the oi l more often than
recommended.
D am ag e or m alfun ction s due to lack of
ma intenanc e
It is essential that you change your oil at the
r ecommended inte rva ls using only engine o il
t hat complies with A udi oi l standard
VW 502 00 . Your Limited New Vehicle War ­
ranty does not cover damage or malfunctions
due to fa ilure to fo llow recommended mainte­
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
Maintenance book let . Your dealer will have to
deny warranty coverage u nless you present to
the dea ler p roof in the fo rm of Serv ice or Re­
pa ir Orde rs that all s chedu led maintenance
was pe rformed in a t imely manner .
Engine oil consumption
The engine in your vehicle depends on an ade­
quate amount of oil to lubricate and cool all
of its moving parts.
In o rder to provide effective lubrication and
cool ing of internal engine components, a ll in­
ternal combustion eng ines consume a certa in
amo unt of o il. Oil consumption varies from
engine to engine and may change significantly
over the life of the engine. Typ ica lly, engines
with a specified break-in period (see
¢
page 184) consume more oil during the
break-in per iod than they consume after oil
consumption has stabilized .
Under normal conditions, the rate of oil con ­
sumpt ion depends on the quality and viscosity
of the oil, the RPM (revo lutions per m inute) at
which the engine is operated, the ambient
temperature and road condit ions. Furthe r fac­
tors are the amount of o il d ilution from wate r
condensation or fuel residue and the ox ida­
tion level of the oil. As any engine is s ubje ct to
Checkin g and fillin g 211
wear as mi leage builds up, the oil consump­
tion may increase over time until replacement
of worn components may become necessary.
Wi th a ll these variab les coming into p lay, no
standard rate of oil consumpt ion can be es ­
tablished or specified. There is no alternative
to regular and frequent check ing of the o il lev ­
el, see
Note .
If the yellow engine oil leve l warning symbo l
1\1 in the instrument cluster lights up , you
shou ld check the oil leve l as soon as possib le
¢
page 212. Top off the oil at your earliest
convenience
¢ page 212.
A WARNING
Before you check anythi ng i n the engine
compartment, always read a nd heed all
WARNINGS¢ .&.
in Working in the engine
c ompartment on page 207.
(D Note
Driving w ith an insufficient o il level is like­
ly to cause severe damage to the engine .
(D Tips
- The oil pressure warning display. is
not an indi cator of the oil le vel. Do not
rely on it . Instead, check the oil level in
your engine at regu lar intervals, pref­
erably ea ch time you r efuel, and alway s
before going on a long trip .
-If you have the impression you r engi ne
c ons umes ex cess ive amoun ts of o il, we
recommend that you consul t an a uthor­
ized Aud i dea ler to have the cause of
your concern properly diagnosed. Keep in mind that the accurate measurement of
oil consumption requ ires great care and
may take some t ime. An authorized Aud i
dealer has instructions about how to
measu re oil consumption accurately.
-
•
•

212 Checking and filling
Checking the engine oil level
Fig. 178 MMI Display: Oil level in dicator
Read oil level
.. Park your vehicle so that it is horizontally
lev el.
.. Shut the engine off when it is at operating
temperature.
• Switch only the ignition back on.
• Wait approx. two minutes.
> Select: Function button ICARI > Oil level. Or
> Select: Function button ICAR I > Car sys-
tems *
control button > Servicing & checks >
Oil level.
.. Read the oil level in the MMI* Display
¢
fig. 178. Add engine oil if the bar of the
oil level indicator is near "min"¢
page 212
Depending on the way the vehicle is driven
and the operating conditions, oil consumption
can be up to 1 quart per 600 miles (0.8 liter
per 1,000 km). Consumption may be higher
within the first 3,000 miles (5,000 km).
The oil level indicator in the MMI* Display
is only an information display. If the oil
level is too low, a minimum oil warning ap­
pears in the instrument cluster. Add oil
¢
page 212. If the hood has been opened,
the current oil level is shown in the instru­
ment cluster the next time the ignition is
switched on.
~ Adding engine oil
Fig. 179 Engine compartment: Cover on the oil filler
n ec k
• Before you check anything in the engine
compartment,
always read and heed all
WARNINGS
¢ .A in Working in the engine
compartment on page 207 .
.. Unscrew the cap '1:::1: to the engine oil filling
hole
q fig. 179, q page 209, fig. 177.
.. Carefully top off with the appropriate oil in
0.5 liter doses.
.. Check the oil level again after two minutes
qpage212.
• Top off the oil again, if necessary.
• Screw the cap back on the filling hole .
.8_ WARNING
- While topping off, the oil must not come
in contact with hot engine parts -fire
hazard!
- The oil filler cap must be properly se­
cured to prevent oil from being sprayed
on the hot engine and exhaust system
when the engine is running -fire hazard!
- If your skin has come in contact with the
engine oil, you must subsequently
cleanse it thoroughly.
(D Note
- Check the oil level using the radio or
M Ml*.
If the message Please reduce oil
level
appears, contact your authorized
Audi dealer or other qualified workshop
to have excess oil extracted if necessary.
- Audi does not recommend the use of oil
additives. They may damage the engine
and adversely affect your New Vehicle
Warranty. .,..

214 Checking and filling
Engine cooling system
Coolant
The 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-basedcoolant additive G13 antifreeze with
anticorrosion add itives (50% for USA models;
60% for Canadian models). This mixtu re both
assures the necessary frost protection 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 eng ine cooling system .
For year-round driving, antifreeze is added at
the factory for temperatures down to:
- -31 ° F ( - 3 S °C) USA
- -40 °F ( - 40 °C) Canada .
_&. WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS ~
A in Working in the engine
compartment on page 207.
(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 on ly coolant ad­
ditive G12++ or G13 for your vehicle.
This coolant additive is availab le at au­
thor ized Audi dealers. Other types of
antifreeze can significantly reduce cor­
rosion protection. The resulting corro­
sion cah cause a loss of coolant and se­
rious engine damage.
- Do not add any type of rad iator 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 Veh icle
Limited Warranty.
· Checking the engine coolant level and
adding coolant
Be very careful when adding engine coolant.
Fig. 180 E n g in e compart men t: Cover on the coo la nt
expansio n tan k
Fig. 181 En g in e compart men t: markings in the coo la n t
expansion tank
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