192 Smart T echnol ogy
Corro sion
Leaving the vehicle parked for long periods o f
time, low mi leage and avoiding heavy braking
can contribute to corrosion on the brake ro
tors and di rty brake pads.
I f you usually avoid heavy brak ing or if there is
corrosion present, occasiona l heavy braking at
high speeds is recommended to clean the
brake rotors and pads¢,& .
Brake system malfunction
if you notice that the brake pedal t ravel has
suddenly gotten larger, then a brake circuit
may have failed. Drive to your authorized Audi
dealer or qualified repair facility immediately
to hav e the problem corrected . On the way
there, drive with reduced speed and keep in
mind that a long braking distance and in
creased pressure on the brake pedal will be
necessary .
Lo w brake fluid level
When the brake fluid level is low, ma lfunc
tions in the brake system may occur. The
brake fluid level is electronically mon itored.
B rake bo ost er
The brake booster amplifies the pressure you
apply to the brake pedal. It only works when
the engine is running.
A WARNING ,~ ·
- You should only perform braking maneu
vers to clean the brakes when the road
condit ions perm it. Never put others on
the road at risk -never forget the risk of
acc idents!
- On steep slopes, reduce the speed and
select a lower gea r or lowe r selector lev
er position. Drive as litt le as poss ible
w hil e pressing the bra ke peda l and avoid
putt ing you r left foot on the brake pedal
whi le driving . This could cause the brakes
to overheat and impair the efficiency of
the brakes .
- Do not let the brakes "grind" by always
keeping yo ur foot on the brake peda l. This can cause the brakes to overheat
in-
,
crease wear and increase braking dis
tance unnecessarily.
- Certain weather and operating condi
tions such as driving through water, driv
ing in heavy rain or driving after washing
your veh icle can impa ir the effectiveness
of the brakes . In the winter, ice may
bu ild up on the bra ke pads, rotors and
d rums. Che ck these components by b rak
ing caref ully. App lyi ng the br akes care
fu lly several times dries the brakes and
removes ice bui ld-up .
- The eff ic iency of the brakes can also be
impaired by driving for long stretches on roads covered with salt without using the
brakes. Yo u can remove salt deposits
from the brake rotors and pads by care
fully applying the brakes several times.
- If the front spoiler is damaged or you in
stall another spoiler, make sure the front
wheel brakes are ventilated properly.
Otherwise , the brake system could over
heat, wh ic h red uces their effectiveness .
- Failure of a brake circuit impa irs braking
performance, wh ic h increases bra king
d istance . Avoid driving the vehicle and
have it towed it to the nearest author
i z ed A udi dealer or au thorized Aud i Serv
ice Facility .
- Do not let your ve hicle roll w it h the en
g ine switched off unde r any circumstan
ces .
- If the b rake booste r is no t working, you
will have to press much harder on the b rake peda l to compensate for the lack
of the booster.
(D Note
- N ever le t the bra kes "rub" by pressing
t he pedal ligh tly when braking is not
really necessary . This causes the brakes
to overheat and increases braking dis
tance and causes wear .
- Before dr iv ing on a long stretch with
steep s lopes, reduce your speed and shift
to the next lower gear This makes use of
the engine brak ing effect and relieves .,.
222 Check ing and F illin g
Using the proper engine o il is important for
the functionality and service life of the en
g ine. Your engine was factory-filled with a
high-quality oil which can usua lly be used
throughout the entire year.
0 Note
Your L imited New Vehicle Warranty does
not cover damage or ma lfunctions due to
fai lure to follow recommended mainte
nance and use requ irements as set forth in
the Audi Owner's Manual and Warranty
&
Ma intenance booklet.
- Use only a high quality eng ine oil that ex
pressly complies w ith the Audi o il quality
standard spec ified for your veh icle's en
gine. Using any other oil can cause seri
ous eng ine damage.
- Do not mix any lubricants o r othe r addi
tives into the eng ine o il. Doing so can
ca use engine damage.
If you need to add oi l and there is no ne
availab le tha t mee ts the Audi oil qua lity
s tandard your engine requires, yo u may
add a tota l of no more than 0 .5 quart/liter
of a high-quality "synthetic"oil that meets
the following specifications.
- Vehicles with gaso line engine: ACEA A3
or API SM with a viscosity grade of
SAE 0W-30, SAE SW-30 or SAE SW-40.
- Vehicles with diesel engine: ACEA C3 or
API CF with a v iscosity grade of
SAE 0W-30 or SAE SW-30.
- For more information abo ut eng ine oil
that has been approved for your vehicle, please contact either your a uthorized
Audi dealer or Audi Customer Relations
at 1 (800) 822-2834 or visit our web site
at www.audiusa .com or
www.aud icanada.ca.
Engine oil consumption
The engine in your vehicle depends on on ade
quate amount of oil to lubricate and cool all
of its moving ports .
In order to provide effective lubricat ion and
cooling of interna l eng ine components, all in
ternal combust ion e ngines consume a certain
amount of oil. Oil consumpt ion va ries from
engi ne to engine and may change sig nifican tly
over the life of the engine. Typically, engines
with a spec ified break -in period (see
¢ page 197) consume more oil during the
break-in period than they cons ume after oi l
consumption has stabilized.
U nder normal cond itions, the rate o f oi l con
s u mption depends on the q uality and viscos ity
of the oil, the RPM (revolutions per minute) at
which the engine is operated, the ambient
temperature and road conditions. Further fac
tors are the amount of oil dilut ion from water
condensation or fue l residue a nd the oxida
t ion level of the oil. As any eng ine is subject to
wea r as m ileage builds up, t he oil co nsump
t ion may increase over time until replacemen t
of worn components may be come necessary.
With a ll these variab les coming into play, no
standard rate of oil consumpt io n can be es
tabl ished o r spe cified . There i s no alte rnative
to regu lar and frequent che ck ing of the o il lev
el , see
Note.
If the yellow engine oil leve l wa rning symbo l
Ill in the inst rument cl uste r lights up, you
sho uld check the oil leve l as soon as possib le
i=> page 223 . Top off the oil at your earliest
convenience
i=> page 223 .
A WARNING
--
Before you check anything in the engine
compartment, always read and heed a ll
WARNINGS¢ page 217.
(D Note
Driving wit h an insufficient o il level is like -
l y to cause severe damage to the engine.
liJJ,
224 Check ing and F illin g
• Unscrew the engine oil fi ller opening cap
~ ¢ fig. 163, ¢page 220, fig . 159.
• Carefu lly add 0 .5 quart (0.5 liter) of the ap
propr iate oil¢
page 221.
• Check the oil level again after two minutes
¢ page 223, Checking the engine oil level.
• Add o il, if necessary .
• Close the engine oil filler cap and push the
dipstick all the way in.
.&_ WARNING
- When add ing o il, do not le t oi l dr ip onto
hot engine components . There could be
risk of a fire .
- You must sec ure 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, be
cause this is a fire hazard.
- Always clean skin thoroughly if it comes
into contact w ith eng ine oil.
([) Note
- Applies to vehicles with gasoline en
gines: The oil level cannot be above the
(!) range¢
page 223, fig. 161, because
th is can ca use damage to the cata lytic
converter or the engine. Contact your au
thorized Audi dealer or qua lified repair
facil ity to have excess o il extracted if
necessary.
-Applies to vehicles with diesel engines: The oil level must not be in the
0 range
¢
page 223, fig. 162 -The oil must not
be extracted, because this can damage
the engine. Drive to an au thorized A udi
dealer or authorized A udi Service Facility
immediately.
- Do not mix any additiona l lubricants into
the engine o il. Damage cause by such ad
ditives is not covered by the war ranty.
@) For the sake of the environment
- Oil should never enter the sewer system
or come into contact with the ground .
- Pay a tte ntion to leg al req uirements
when disposing of empty oil containers .
Changing the engine oil
We recommend that have your oil changed by
an authorized Audi dealer or a qualified serv
ice station.
Before you check anyth ing in the engine com
partment,
always read and h eed all WARN
INGS
¢ page 217.
The engine oil must be changed according to
the interva ls specified in your Warranty
&
Maintenance booklet . This is very important
because the lubricat ing propert ies of o il di
min ish g radually du ring normal vehicle use.
Under some circumstances the engine oil
should be changed more frequently. Change o il more often if you drive mostly short d is
tances, operate the ve hicle in dusty a reas or
under p redo min ant ly stop-and-go traffic con
di tions, or have yo ur vehicle where tempera
tures remain below freezing for extended pe
riods .
De te rgent additives in the oil will make fresh
o il look dark after the engine has been run
ning for a sho rt time. This is normal and is not
a reason to change the oil more often than
recommended.
Beca use of the p roblem of proper disposal,
along wi th the specia l tools and necessary ex
pertise req uired, we st rongly recommend that
you have your oil changed by an a uthorized
Audi deale r or a qualified service station.
If you choo se to chan ge your oil your self ,
please note the fo llowing important informa
tion:
.&_ WARNING
To reduce the risk of personal in jury if you
must change the eng ine oil in your vehicle
yourself:
- Wear eye protect ion.
- To reduce the risk of burns from hot en-
g ine oi l, let the engine cool down to the
touch.
- When removing the o il drain p lug with
your fingers, stay as far away as possible. ..,
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Always keep your forearm parallel to the
ground to help prevent hot oil from run
ning down your arm.
- Drain the oi l into a conta iner designed
for this p urpose, one large eno ugh to
hold at least the total amount of oil in
your engi ne.
- Engine oil is poisono us. Keep it well out
of the reach of c hildren .
- Cont inuo us contact with used engine oil
is harmful to your skin. Always protect
you r sk in by washing oil off thoroug hly
with soap and water .
(D Note
Never mix oil addit ives with your engine
oil. These additives can damage your en
gine and adversely affect y our Aud i Limit
ed New Vehicle Wa rra nty .
@ For the sake of the environment
- Before changing your oi l, f irst make sure
you know whe re you can proper ly dispose
of the used o il.
- Always d ispose of used engine oil proper
l y. Do not dum p it o n ga rden so il, wood
ed a reas, into open streams or down
sewage dra ins.
- Recycle used engine o il by taking it to a
u se d engine oil collection facility in your
a rea, or contact a servi ce 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 an d generally re
q uir es little attention.
The cooling system has been filled at the f ac
tory with a pe rm anen t coo lan t which does no t
n eed to be changed. The coolant consists of a
mixture of specia lly conditioned water and the
manufacturer's glyco l-based coo lant add i-
tive Gl3 antifree ze with ant icorros ion addi-
Checking and Fillin g 225
tives (50% for USA mode ls; 60% fo r Canadian
models) . This mixture both ass ures the neces
sary frost protection and protects metal com
ponents in the eng ine's cooling system from
corros io n and scaling. It also raises the bo il
ing point of the coolant .
Do not reduce the concentration of the cool
ant in the s ummer by adding p lain water.
The
proportion of coolant additive must be at
least 50°/o but not more than 60 %
to main
ta in antifreeze protect io n and cool ing eff ic ien
cy . If the coo lant frost p rotection is too low ,
t he coo lan t could freeze and damage the vehi
cl e heating and engine cooling sys tem.
Fo r year- round drivi ng, a ntifreeze is added at
the factory fo r temperatures down to:
- -31 °F
< -3s0c) u sA
- -40°F ( - 40°C) Canada.
If you must ad d coo lant, use a mixture o f wa
te r and coolant additive. Mixing the coo lant
additive with dist illed water is recommended.
A WARNING
Before you chec k anything in the engine
compartment, always read and heed all
WARNI NGS
c:> page 217.
-
(D Note
- Before winter sets in, have the coo lant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli mate condit ions. This is especially impor
t ant if you l ive i n a region where the win-
t er is extremely cold. If necessary, in-
c rea se t he p ropo rtion of coo lant add itive
t o 6 0% .
- Whe n ad d ing coolant addi tiv e to yo ur
c ooling sys te m , reme mbe r:
- We recommend using on ly coo lant ad
d itive Gl2 ++ or Gl3 (check the labe l)
for your vehicle. This coolant additive is ava ila ble at autho rized Aud i dea le rs .
Othe r ty pes of antifreeze ca n sig nifi
cantly reduce cor ros io n protec tion . The
r esu lting co rrosion can cause a lo ss of
c o o lant a nd serio us e ng ine da mage.
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In certain circumstances, you may not use
wheel bo lts from a different vehicle -
even if it
i s the same mode l
Q page 291.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
control, a collision and ser ious personal in
jury .
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop
erly t ightened.
- Never grease or oil the wheel bolts and
the threads in the wheel hubs. They can
become loose w hile d riving if greased or
o iled,
even if tightened to the spec ified
torq ue.
- Only use wheel bo lts that belong to the
rim being ins talled.
- Never use different whee ls bolts on your
vehicle .
- Always maintain the correct tightening
torque fo r the wheel bolts to reduce the
risk of a wheel loss. If the tigh teni ng tor
que of the wheel bolts is too low, they
can loosen and come out when the vehi
cle is moving . If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel ca n be
come loose .
(D Note
The specified torque for the wheel bo lts is
90 ft lb (120 Nm) w ith a tolerance of
± 7,4 ft lb(± 10 Nm). Torque whee l bolts
diagonally. After changing a wheel, the
torque must be checked as soon as possi
b le with a torque wrench -prefe rably by an
author ized Audi dealer or qualified wo rk
shop.
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires . These tires have been thorough ly
tested and been selected spec ifically for your
model for the ir superb performance, road feel
Tire s an d wheel s 263
and handling under a variety o f driving condi
tions. Ask your authorized A udi dealer for
more details .
T he low aspec t ratio of these tires is ind icate d
by a numera l of
55 or le ss in the tire's size
designation. The numera l represents the ratio
of the t ire's sidewa ll height in relation to its
tread width expressed in percentage.
Conven
tiona l tires have a he ight/w idth rat io of 60 or
more .
The performance of low-a spect-ratio tire s is
particularl y sens it iv e to improper inflation
pressure. It is therefore important that low
a spect ratio tir es are inflated to the specified
pre ssure and that the inflation pr essure i s
regularly checked and ma intain ed . Tire pr es
s ure s should be checked at lea st on ce a
month and alway s bef ore a long trip
~ page 245 , Checking tire pressure .
A Word about Low Aspect Ratio and High
Performance Ti res
Hig h pe rformance tires are des igned for bet
ter performance and handling in warm cli
mates. When driving in cold, snowy or icy
weather, you sho uld equ ip your vehicle w it h
four all-season or winter tires, which
offer
better traction under those condit ions. We
suggest you use the Audi recommended win
te r or a ll-season tires specified for you r Audi.
High performance tires a lso have a lower as
pect ratio that aids performance and han
dling . Driving over rough or damaged road
surfaces, as well as debr is, cu rbs and other
obstacles can cause serious damage to
whee ls, tires, vehicle body, and suspens ion
parts . B e carefu l to avo id road hazards and re
du ce your speed , espec ia lly if your vehicle is
equipped wi th low prof ile tires .
Please a lso remember when making your se
lection that, wh ile these tires deliver respon
s ive handling, t hey m ay ride less comfo rtably
and make more noise than o thers . Finally,
these tires may wear more quickly than other
c h oices.
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