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The catalytic conve rter is an efficient "clean -up"
device bui lt into the exhaust system of the vehi
cle. The catalytic converter burns many of the
pollutants in the exhaust gas before they are re
leased into the atmosphere.
The exclusive use of unleaded fue l is critically im
portant for the life of the catalytic converter and
proper functioning of the engine .
A WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
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 exhaust system may come in contact with dry grass, brush, fue l spill or
other material which can cause a fire .
- Do not apply additional undercoating or
rustproofing on o r near the exha ust man i
fold, exhaust pipes, catalyt ic converte r or
heat s hields. Dur ing driv ing, the subs tance
u5ed for undercoating could overheat and
cause a fire .
(D Note
-Be awa re that just one tank f illing wit h lead
ed
f uel will a lready se riously degrade the
performance of the c ata lytic conver ter.
- Do not exceed the co rrect engine oil leve l
9page203.
-Do not d rive until the fuel tank becomes
complete ly empty. The eng ine could misfi re.
U nburned f uel co uld also ge t in to the e x
haust system and this could ca use the cata
l ytic converter to overheat.
- Do no t sw itch off the ignition wh ile the vehi
cle is moving.
- Do not con tinue to oper ate yo ur vehicle un
der these cond itions, as o therwise fue l can
r each the catalytic converte r. This cou ld re
su lt in overheating of the converter, requir
i ng its replacement.
- To assure efficient ope ration of the Emission
Control System:
Checking and Fillin g
- Have your vehicle maintained properly and
in accordance with the serv ice recommen
dat ions in yo ur Warranty
& Maintenance
booklet.
- Lack of prope r maintenance as we ll as im
p roper use of the vehicle will impair the
f u nction of the emission control system
and could lead to damage.
@ For the sake of the environment
Even when the Emission Control System is op
erating properly, the exha ust gas can have a
su lfur-like exhaust gas sme ll under some op
erating states. Th is depends on the s ulfur
content of the fuel b eing used. Us ing a diffe r
ent bra nd of fue l may he lp, or fi lling the tank
wi th lead-free su per grade gaso line.
Diesel particulate filter
App lies to vehicles: wit h diese l eng ine
T he diese l part icu late filter filters nearly all of
the soot pa rticles ou t of the exha ust. The filter
cl ea ns itself a utoma tic all y unde r no rm al driving
con dit ions. If the filte r cannot clean itse lf (for ex
amp le, because yo u are only driving sho rt distan
ces), th e fi lter becomes clogged with soot and
the
II symbol for the diese l partic ulate filter il
l uminates
9page 22.
A WARNING
-Do not park your veh icle over flammable
materials such as grass or leaves because
the high temperature of the diesel part icu
la te filte r could sta rt a fi re.
-
- Do not app ly an underbody protectant in the
exhaust system area or a fire cou ld start.
Selective catalytic
reduction
General information
App lies to vehicles: wit h diese l eng ine
In veh icles with selective catalytic reduction, a
u rea solution (AdBlue) is injected into the ex
haust system before a nitrogen oxide cata lytic
conve rter to redu ce nitrogen emissions.
195

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-Always proceed with extreme caution so
that clothing, jewelry or long hair do not
become caught in the radia tor fan, fan
belt or other moving components or do not come into contact with hot compo
nents . T ie back long hair before beg inning
work and do no t wear cloth ing that can
hang down into the eng ine.
- limit your exposure to exhaust and chemi
cals to as short a time as possible
q ,& .
..&, WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certai n veh icle components conta in or
em it chemicals known to the State of Cali
forn ia to cause cancer and birth defec ts and
reproductive harm. In addition, certai n flu
ids contained in vehicles and certain prod
ucts of component wear contain or emit
chemicals known to the State of California
t o cause cancer and birth defects or other
reproductive harm .
- Battery posts , terminals and related acces
sories contain lead and lead compounds,
chem icals known to the State of California
to cause cancer and reproductive harms .
Wash hands after hand ling.
(D Note
When filli ng flu ids, be sure not to m ix the flu
ids up . Otherwise seve re malfunctions and en
gine damage w ill occur .
@ For the sake of the environment
You should regu larly check the grou nd under
your veh icle in order to detect leaks quickly . If
there are visible spots from oil or other f luids,
b ring yo ur vehicle to an autho rized Aud i dea l
er or authori zed Audi Se rv ice F acili ty to be
checked.
Ch eck in g and Fillin g
Opening the hood
The hood is released from the in terior .
Fig . 155 Se ctio n from t he dr iver' s footwe ll: re le a se le ve r
Fig . 156 Ro cke r swit c h un der t he hoo d
Make sure the wiper arms a re not raised up from
the windsh ie ld . Oth erwise the paint cou ld be
damaged.
.,. W ith the driver's door open, pull the lever be
low the instr ument pane l in the d irect ion of the
arrow
<=> fig. 155.
.,. Raise the hood slightly r:!> ff::.. .
.,. Press the rocker switch unde r the hood upward
q fig. 156 . This re leases the catch .
.,. Open the hood .
..&, WARNING
-=
Never open the hood when you see that steam
or coolant drips from the engine compart
ment- there is a da nger of bu rns! Wait unt il
n o steam or coolant flows out .
- Never open the hood when you see that
s team or coo lant dr ips from the e ngine
comp artment- the re is a dange r of burns !
Wait until no steam or coo lant flows o ut .
199

Checking and Fill in g
Closing the hood
.. Push the hood down until the force of the strut
is overcome.
.. Let the hood fall light ly into the Latch.
Do not
press it in.
c::> _&. .
A WARNING
If the hood is not latched completely, it cou ld
fly up while you are driving and obstruct your
vision.
Gasoline engine compartment overview
The most important check points .
-For safety reasons, the hood must always be
closed securely wh ile d riving. Because of
this, always check the hood after closing it
to make sure it is Latched correctly . The
hood is Latched if the front corne rs cannot
be Lifted.
- If you notice that the hood is not Latched while you are dr iving, stop immediately and
close it, because this increases the risk of an
accident.
F ig . 1 57 Typica l locat io n of th e reservo ir, eng ine oil dipstick, a nd engine o il filler opening
(D Coolant expansion tank (_L) .....
@
@
©
®
®
0
®
Eng ine oil dipstick ......... ... .
E ng ine oil filler opening
("!:::r.) .. .
Brake fluid reservoir((())) ...... .
Ba ttery(+) under a cover
Body ground point(-)
Washer fluid reservoir
(W) ... .. .
Fu se housing ... ......... .... .
200
206
203
203
207
209
212
248
The engine oil filler opening and the dipstick
( items @and
@) c::> fig. 157 may be Located in a
different area depending on engine vers io n.
A WARNING -
Read and following the WARNINGS before
checking anyth ing in the eng ine compartment
c::> pag e 198.

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Checking and Filling
Diesel engine compartment overview
The most important check points .
Fig. 158 Typical locat ion of the reservoi r, eng ine oil dipstick, and engine o il filler opening
CD Coolant expansion tank (-L) .....
@
®
©
®
®
(J)
®
Engine oil dipstick ... ...... ... .
Engine oil filler opening (~) .. .
Brake fluid reservoir
(0))
Battery(+) under a cover
Body ground point(-)
Washer fluid reservoir
(O) ..... .
Fuse housing .......... ...... .
206
203
203 207
209
212
248
The engine oil filler opening and the dipstick
(items ® and @)¢
fig . 158 may be located in a
d ifferent area depending on engine version.
A WARNING
-
Read and following the WARNINGS before
checking anything in the engine compartment
¢page 198.
Engine oil
Engine oil specifications
The engine oil used must conform to exact speci
fications.
T he service interval display in the instrument
cluster of your vehicle will inform you when it is
time for an oi l change. We recommend that you
have your oil changed by an authorized Audi Serv
ice Advisor.
If you have to top off the oil between o il changes,
use the Audi oil qua lity standard specified in the
table .
Audi oil quality standard
Gasoline
VW 502 00 or
engine vw 504 00
Diesel VW 507 00
engine
201

Checking and F ill in g
Using the proper engine o il is important for the
functionality and service life of the engine. Your
engine was factory-fi lled w ith a high-quality o il
which can usually be used throughout the ent ire
year.
@) Note
Your L imited New Vehicle Warranty does not
cover damage or malfunctions due to failure
to follow recommended ma intenance and use
requ irements as set forth in the Audi Ow ne r's
Manual and Wa rranty
& Ma intenance booklet .
- Use only a high quality eng ine oil t hat ex-
pressly comp lies w ith the Audi o il quality
standard specified for your vehicle's e ngine .
Using a ny other oil can cause se rious engine
damage.
- Do not mix any lubricants o r othe r addit ives
i nto the engine oil. Doing so can cause en
g ine damage.
(D Tips
If you need to add oil and there is none availa
ble that meets the Audi o il quality standard
y o ur eng ine requires, you m ay add a total of
no more than 0.5 quart/li ter o f a h igh-quali ty
"synthet ic"oil that meets the fo llowing speci
fications .
- V ehicles wi th gasoline engine: AC EA A3 o r
API SM with a viscosity grade of SAE 0W- 30,
SAE SW -30 or SAE SW-40 .
- Vehicles with d iesel engine: ACEA C3 o r
API CF with a viscosity g rade of SAE 0W-30
or SAE SW-30.
- Fo r more information abo ut engine oi l t h at
has been approved for your vehicle, please
contact either your a uthorized Audi dea ler
or Audi Customer Relations at
1 (800) 822-2834 or visit ou r web site at
www.aud iusa.com or www .aud icanada .ca.
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 order to provide effective lubrication and cool ing of in ternal engine components, all internal
202
combust ion engines consume a certa in amoun t
of oil. Oil consumptio n varies from engine to en
gine and may change sign ificant ly over the li fe of
the engine . Typically, eng ines with a specif ied
break-in period (see
¢ page 70) consume more
o il dur ing the break-in per iod than they consume
after oil consumption has s tabilized .
Under normal cond itions, the rate of oil con
sump tion depends on the quality and viscos ity of
the oil, the RPM (revolutions per minute) at
wh ich the engine is operated, the ambie nt tem
perature and road cond it ions . Furthe r facto rs a re
t h e amo unt of o il di lution from water conde nsa
t ion or fue l residue and the ox idat ion leve l o f the
o il. As any engine is s ubject to wear as mileage
builds up, the oil consumption may increase ove r
time unt il rep lacement of wo rn components may
become necessary.
With a ll these va riab les coming into p lay, no
standard rate of oil consumption can be estab
li shed or spec ified. There is no alte rnative to reg
ul ar and frequent checking o f the oil leve l, see
Note .
If the yellow engine oi l level warning sym bo l Ill
in the instrument cluster lights up, yo u should
check the o il level as soon as possible
¢ page 203. Top off the oil at your earliest con
venience
¢ page 203.
A WARNING
Before you c heck anythi ng in the eng ine com
partment, always read and heed al l WAR N
IN GS ¢page 198.
(D Note
Driving w it h an insufficient o il level is likely to
cause severe damage to the engine.
(D Tips
- The oil pressure warning d isplay. is not
an indicator of the oil level. Do not rely on
it. Instead, check th e oil level in your en
gine at regular intervals, preferably each
time you refuel , and alway s before going
on a long trip.

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-If you have the impression your engine con
sumes excessive amounts of oi l, we recom
mend that you consult an authorized Audi
dealer to have the cause of your concern
properly diagnosed. Keep in mind that the
accurate measurement of oil consumption
requires great care and may take some time.
An authorized Audi dealer has instr uctions
about how to measure oil consumption ac
curately.
Checking the engine oil level
Fig. 159 Gasoline engine oil dipstick: guide for measuring
t h e oil leve l (example)
F ig . 160 Diesel engine oil dipstick : g ui de for measuring the
oil level (example)
Determining the oil level
• Park your vehicle on a level surface.
• Let the engine run in idle briefly while it is at
operating temperature and then shut the en gine off.
• Wait approximately two minutes.
• Remove the oil dipstick. Wipe off the oil dip
stick with a clean cloth and insert it all the way
in again .
• Remove the dipstick again and then read the oil
level¢
fig. 159 or ¢ fig. 160.
Checking and Filling
• Evaluate the oil leve l c;, table on page 203. Add
engine oi l if necessary
¢ page 203.
0 You must add o il. After adding oil, the level
shou ld be in the@ area.
@ You may add oil. After adding oil, the leve l
shou ld be in the@ area.
0 Do not add any oil.
@ Do not add any oil. You may continue driv-
ing.
0 Do not add any oil. Drive to an author ized
A udi dealer or authorized A udi Service Fa-
cility immediately.
Applies to vehicles with diesel engines: if you op
erate your vehicle with biodiesel, fuel may enter
the engine oil. This raises the oi l level in the en
gine. It also decreases the quality of the engine
oil ¢page23.
The oil consumption of the engine may be up to
1/2 quart per 600 mi les (0 .5 liter per 1,000 km),
depending on driving style and cond itions. Con
s umption may be higher during the first
3,000 miles (5,000 km). Because of this, the en
gine oil level must be checked regularly. It would
be best to check each time you refue l your vehicle
and before long drives.
Adding engine oil 't::7:
Fig. 161 Engine compa rtment: e ngine oil fille r opening
cover
• Tur n the engine off .
• Unscrew the engine oil filler opening cap
• Carefully add 0.5 quart (0.S liter) of the appro-
priate oil
c;, page 201. .,..
203

Checking and Filling
"' Check the oil level again after two minutes
¢ page 203 , Checking the engine oil level.
"'Add oil, if necessary.
"'Close the engine oil filler cap and push the dip
stick all the way in.
A WARNING
- When adding oil, do not let oil drip onto hot
engine components. There could be risk of a
fire.
- You must secure the cap on the oil filler
opening correctly so that oil does not leak
out onto the hot engine and exhaust system
when the engine is running, because this is
a fire hazard.
- Always clean skin thoroughly if it comes into
contact with engine oil.
(D Note
- Applies to vehicles with gasoline engines:
the oil level cannot be above the
0 range
¢ page 203, fig. 159, because this can
cause damage to the catalytic converter or
the engine. Contact an authorized Audi
dealer or authorized Audi Service Facility to
have excess oil extracted if necessary.
- Applies to vehicles with diesel engines: the
oil level must not be in the
(v range
¢ page 203, fig. 160 -The oil must not be
extracted, because this can damage the en
gine. Drive to an authorized Audi dealer or
authorized Audi Service Facility immediate ly .
- Do not mix any additional lubricants into
the engine oil. Damage cause by such addi
tives is not covered by the warranty.
@ For the sake of the environment
- Oil should never enter the sewer system or
come into contact with the ground.
- Pay attention to legal requirements when
disposing of empty oil containers .
204
· Changing the engine oil
We recommend that have your oil changed by an
authorized Audi dealer or a qualified service sta tion.
Before you check anything in the engine compart
ment,
always read and heed all WARNINGS
¢ page 198.
The engine oil must be changed according to the
intervals specified in your Warranty & Mainte
nance booklet . This is very important because the
lubricating properties of oil diminish gradually
during normal vehicle use.
Under some circumstances the engine oil should
be changed more frequently. Change oil more of
ten if you drive mostly short distances, operate
the vehicle in dusty areas or under predominantly stop-and-go traffic conditions, or have your vehi
cle where temperatures remain below freezing
for extended periods.
Detergent additives in the oil will make fresh oil
look dark after the engine has been running for a
short time. This is normal and is not a reason to
change the oil more often than recommended.
Because of the problem of proper disposal, along
with the special tools and necessary expertise re
quired, we strongly recommend that you have
your oil changed by an authorized
Audi dealer or
a qualified service station.
If you choose to change your oil yourself , please
note the following important information:
A WARNING
To reduce the risk of personal injury if you
must change the engine oil in your vehicle
yourself:
- Wear eye protection.
-
- To reduce the risk of burns from hot engine
oil, let the engine cool down to the touch.
- When removing the oil drain plug with your
fingers, stay as far away as possible. Always
keep your forearm parallel to the ground to
help prevent hot oil from running down your
arm.

M N
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-Drain th e oi l into a container desi gned for
this purpose, one large enough to ho ld at
least the total amount of oil in your engine .
- Engine oil is poisonous . Keep it well out of
the reach of children.
- Continuo us contact with used engine oil is
harmful to your sk in. A lways protect your
sk in by washing oil off thoroughly w ith soap
and water.
(D Note
Never mix oi l addit ives with your engine oi l.
These additives can damage your eng ine and
adversely affect your Audi Limited New Veh i
cle Warranty .
@) For the sake of the environment
-Before changing your oi l, f irst make sure
you know where you can properly dispose of
the used oil.
- Always d ispose of used engine oil proper ly.
Do not dump it on garden soil, wooded
areas, into open streams or down sewage
d rains .
- Recycle used e ngine oi l by taking it to a used
engine oil collection facility in your area, or
contact a service station .
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 sea led and generally re
q ui res lit tle atten tion.
The cooling system has been filled at the factory
w ith a pe rma nen t coolan t which does no t need to
be ch anged . T he coolant consists o f a mixture o f
specia lly condit ioned wa ter and the man ufactu r
er's glycol -based coolant additive Gl3 antifreeze
with anticor rosion add itives (SO% for USA mod
e ls · 60% for Canadian models) . Th is m ixture bot h
'
assures the nece ssary fros t protection and p ro-
tects meta l components in the engine 's cooling
Checking and Fillin g
system from corrosion and scaling . It also raises
t h e boiling point of the coo lant .
D o no t redu ce the con cen tra tion of the coolan t in
the summer by ad ding plain water.
The prop or
tion of coolant additive mu st be at least 50%
but not more than 60%
to maintai n antifr eeze
protection and cooling efficiency . If the coo lant
frost pro tec tion is too low, the coo lant co uld
freeze and damage the vehicle heating and en
gine cooling system .
For year- ro und driving, antifreeze is added at the
factory for temperatures down to :
-- 31°F(-3S° C)USA
- -40 °F ( - 40 ° C) C anada.
If you must add coolant, use a mixture of water
and coolant additiv e. Mix ing the coo lant add it ive
with dis tilled wa te r is recommended .
A WARNING
Befo re you c hec k anythi ng i n the engi ne com
partment, always re ad and heed a ll WA RN
IN GS
~page 198.
(D Note
- Befor e wi nter sets in , have the coo la nt
c hecke d to see if the cool an t additive in you r
vehicle is sufficient to meet the climate con
ditions . This is espec ia lly impo rtant if you
live in a region where the winter is extreme
ly cold . If necessary, increase the proportion
of coolant additive to 60%.
- When adding coolant additive to yo ur cool
ing system, remember:
- We recommend us ing o nly coo la nt addi
tive G12 ++ o r G13 ( che ck the label) fo r
your ve hicl e. This coolant addi tive is av ail
a ble at autho rized Aud i dea le rs . Othe r
types of ant ifreeze can significant ly re
d uce corrosion protection. The resulting
corrosion can ca use a loss o f coolant and
serious engine damage.
- Do not add any type of rad iator leak sealant
to y our vehicle's engine coolant. Adding ra
diator repa ir fluid may adversely affect the
function and perfo rmance of your cooling .,,.
205