
ESC includes and/or works together with the
anti-lock brake system (ABS) , brake assist sys
tem, anti -slip regulation (ASR) , e lectronic dif
ferential lock ( EDL) and e lectronic interax le
d ifferential lock* . ESC is swi tched on all the
time. In certain situat ions when you need less
traction , you can switch off ASR by pressing
the button
[ru <::;> page 196, fig . 178 . Be sure
to switch ASR on again when you no longer
n eed less t raction.
Anti-lock br aking s ystem (ABS)
ABS prevents the wheels from locking up
when braking . The veh icle can still be steered
even during hard braking . Apply steady pres
sure to the brake pedal. Do not pump the ped
a l. A puls ing in the bra ke peda l indicates that
the system is he lping you to brake the vehicle.
Brake assist system
The brake assist system can decrease brak ing
d istance.
It increases braking power when the
driver p resses the brake pedal quic kly in emer
gency situations. You must press and ho ld the
b rake peda l until the situation is over . In
vehicles with adaptive cruise control* , the
brake assist system is more sensitive if the
d istance detected to the vehicle ahead is too
small.
Anti -slip regulation (ASR )
ASR reduces engine power when the d rive
wheels begin to spin and adapts the force to
the road condit ions. This makes it eas ie r to
s tart, accelerate and drive up hills.
El ectronic diffe rential lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive powe r to the other drive
wheel or whee ls if the vehicle is equipped with
all-whee l drive*. This function is available up
t o about 75 mph (120 km/h).
I n extreme cases , ED L automatica lly switches
off to help keep the brake on the braked whee l
from overheating.
E DL wi ll switch on again au
tomatically when conditions have returned to normal.
Int ellig ent technolog y 195
Electronic intera xle differential l ock */
se le ctive wheel torque cont rol *
The electronic interaxle differential lock (front
whee l drive) or the se lective whee l torque
cont rol (all-wheel dr ive) operates when dr iv
ing through curves . The front wheel on the in
s ide of the curve or both wheels on the inside
of the curve are braked selectively as needed .
T his min imizes sliding in the front wheels and
allows for more p recise d riving through
curves . T he applicable system may no t acti
vate when driv ing in wet or snowy conditions.
A WARNING
-- ESC, ABS, ASR, EDL and the electronic in
teraxle diffe rential lock function* cannot
overcome the laws of physics. This is es
pecially important on slippery or wet
roads . If the systems begin acting to sta
bilize your veh icle, you should immedi
ately change yo ur speed to match the
road and traffic cond itions. Do not let
the increased safety provided by these
systems tempt you to take risks. Do ing
so will increase the r isk o f a loss of vehi
cle control, collision and serious personal inju ries.
-Always adapt your speed to road, traffic and weather conditions . The risk of los
ing control of the vehicle increases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead . ESC, ABS, the brake assist sys
tem, EDL, ASR and the e lectronic inte r
axle d iffe ren tial lock function* cannot
preven t coll is ions.
- Always accelerate with spec ial care on
even, smooth surfaces su ch as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that cannot al
ways he lp to red uce the risk of loss of ve-
hicle control. .,.
•
•

216 Fuel supply and filling your fuel tank
-Blend must contain not more than 1S%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
espec ially we ll for winter or summer driv ing.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea
sonal adjustment is more likely to be made in
time.
(CT) Note
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo
nents in the fuel system .
- Do not use fuels that fai l to meet the
specified criteria in this chapter.
- If yo u are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or
its fuel sup plier.
- Do not use fuel for which the contents cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the respons ibility of Audi and are not
covered under the New Vehicle or the Emission Control System Warranties.
- If you experience a loss of fuel economy
or driveability and performance prob l ems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Gasoline additives
A major concern among many auto manufac
turers is carbon deposit build- up caused by
the type of gasoline you use.
A lthough gasoline grades differ from one
manufacturer to another, they have certain
things in common. All gasoline g rades contain
substances that can cause deposits to co llect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
brands include additives to keep engine and fuel
systems clean, they a re not equally effec
tive .
A udi recommends using TOP TIER Detergent
Gasoline. For more information on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas.com).
After an extended period of using inadequate
f uels, carbon deposit build-ups can rob yo ur
engine of peak performance.
(D Note
Damage or malf u nct ion due to poor fuel
quality is not covered by the Aud i New Ve
hicle Limited Warranty.
Diesel fuel
Applies to veh icles: w ith diesel engine
Always use ULSD (Ultra Low Sulfur Diesel) sul
fur content 15 ppm or less.
T he ULSD (U ltra Low Sulfur Diesel) meets the
ASTM-D-97S (grade 2).
Diesel fuel with a higher concentration than
ULSD-Diesel No. 2 ASTM 0975 and Bio-die
sel with a higher concentration than S
% like
B11, B20 or B100 are strictly prohibited.
Serv ice stat ion fue l pumps a re labeled with
the correct fuel information fo r easy recogn i
t ion by the user. If the diesel fuel pump is not
labeled ask the station operator what fue l is
being dispensed before filling up your vehicle.
Service stations offering Diesel fuel are gener
ally located on truck routes or major high
ways. Directories of Diesel fuel stations are
usually available at Diesel fuel stations.
Some states in the USA req uire permits to
purchase Diesel fuel. Check with your State
Motor Vehicle Department.
Diesel fuel may not be ava ilable outside the
USA and Canada. Be sure to check before trav-
eling to other countries . .,..

Modern eng ine lubrication has taken a quan
tum leap in the last few years . Many synthetic
oils available 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 (vehicles with gasoline engine) or
VW 507 00 (veh icles with diesel engine) to
he lp keep your vehicle's eng ine running
smoothly and help prevent the fo rmation of
harmf ul depos its, sometimes ca lled "sludge,"
that over time can lead to expensive repairs.
At the time of pr inting, engine o ils availab le in
the U.S. and Canada tha t meet the exacting
specifications of A udi oil standard VW 502 00
(vehicles with gaso line engine) or VW 50 7 00
(vehicles with diesel engine) are synthetic en
gine oils . This does not mean, however, that
every synthetic engine oil will meet Aud i oil
standard VW 502 00 (vehicles with gasoline
engine) or VW 507 00 (vehicles w ith diese l
engine). So always be sure that you use an ap
proved oil.
To help prevent the formation of harmful de
posits use only oil with the follow ing spec ifi
cations printed on t he oil container:
- Aud i oil standard VW 502 00 (gasoline en
gine )
- Aud i oil standard VW 50 7 00 (d iesel en -
gine )
Oil conta iner labe ls may carry the specif ica
tion singly or in comb ination with other desig
nations and oil qua lity standards.
Vi scosi ty
Eng ine oils are graded acco rding to their v is
cosity. The prope r viscosity grade oil for your
engine depends on cl imac tic or seasonal con
d itions where you dr ive. You can use oi l with a
viscosity grade of SAE SW40 across all tem
pe rat ure ranges for normal d riving conditions .
H oweve r, if eng ine oi l viscosity grade
SAE SW40 is not ava ilable, you can a lso use
Checkin g and fillin g 22 7
viscosity grade SAE 5W -30 or SAE OW-40 as
long as it meets Audi oil q uality standard
VW 502 00 (vehicles with gasoline engine) or
VW 507 00 (vehicles w ith diese l eng ine) spec
ifications.
Because engine oil that meets the Audi oi l
standard may not be available everywhere
when you need it, we strongly recommend
that you always carry with you an extra quart
( li ter) of oil that express ly conforms to the
VW 502 00 (veh icles with gasoline engine) or
VW 507 00 (vehicles w ith d iese l eng ine) spec
ification, in case you have to top off the oil
wh ile on the road.
App lie s to vehicle s with gasoline engin e on
l y:
Only if the level of the o il is at or below the
minimum ma rk on the o il dipstick -and no oi l
that expressly conforms to Audi o il st andard
VW 502 00 spec ificat ions is available - may
you top off with a high quality engine o il, pre f
erably synthetic -based, that meets ACEA A3
or API SM specificat ions, but even then, only
in v iscosity grades SAE SW-40, SAE SW-30, or
SAE OW-40. However, during the entire time
between oil change intervals, never top off
with more than a total of 0 .5 qt/liter engine
o il that does not conform to Audi o il specifica
tion VW 502 00.
App lie s to vehicles with die sel engin e only:
Only if the level of the o il is at or below the
min imum ma rk on the o il dipstick - and no oi l
t h at exp ressly conforms to Audi o il standard
VW 507 00 spec ificat ions is available - may
you top off with a high quali ty engine o il, that
meets ACEA C3 or API CF specifications, but
even t hen, only in viscosity grades SAE
SW-40, SAE 5W-30, or SAE OW-40. However,
during the entire time between oil change in
terva ls, never top off with more than a total
of 0. 5 qt/liter engine oil that does not con-
for m to Aud i oil spec ification VW 50 7 00.
For more information about engine oi l that
has been approved for your vehicle, please
contact e ither you r autho rized Aud i deale r or
Audi Custome r Re lations at 1 (800) 822-2834
o r vis it our web site at www.audiusa.com or
www.aud ic a nada. ca. He re you w ill also fi nd a ..,.
•
•

228 Check ing and filling
current list of oils (manufacturers , brand
names etc.) that conform to Aud i oi l standard
VW 502 00 (vehicles with gasoline engine) or
VW 507 00 (vehicles with diesel engine).
C hang in g th e en gin e oil
The engine oil and o il filter must be changed
according to the m ileage (ki lomete rs) and
time inte rva ls spec ified in your vehicle's War
ranty
& Maintenance booklet . Do not exceed
these intervals - harmful deposits from old
engine o il can reduce engine performance and
can lead to expensive engine repairs .
Changing the oil at the recommended inte r
va ls is so very important because the lubricat
ing properties of oi l decrease grad ually during
norma l vehicle use. If you are not sure when
you have your oil changed, ask your author
ized Audi Service Advisor .
Under some circumstances the engine o il
should even be changed more frequently .
Change oil more often if you drive mostly
short d istances, operate the vehicle in dusty
areas or mostly under stop-and-go traffic con
d itions, or when you use your vehicle where
temperatures stay below freezing point fo r
l ong periods.
Detergent add it ives in the o il w ill make fresh
oil look dark after the eng ine has been run
n ing fo r a short time. This is no rma l and is not
a reason to change the o il more often than
recommended.
Dama ge or ma lfun cti ons du e to la ck of
maint enan ce
It is essential that you change your oil at the
recommended intervals using only engine oil
that complies with Audi oil standard
VW 502 00 (vehicles wi th gaso lin e engine) or
VW 507 00 (veh icles with diese l engine) . Yo ur
Limited New Vehicle Warranty does not cover
damage or ma lf u nctions due to failure to fol
low recommended maintenance and use re
qu irements as set forth in the A udi Owner's
Manual and War ranty
& Maintenance book let.
Your dea ler will have to deny warranty cover
age unless you present to the dealer proof in the form o
f Service or Repair Orders that all
scheduled maintenance was performed in a
t imely manner.
Engine oil consumption
The engine in your vehicle depends on on ade
quate amount of oil to lubricate and cool oil
of its moving ports.
In order to provide effective lubrication and
cooling of interna l engine components, all in
ternal combust ion engines consume a certain
amount of oil. Oil consumpt ion varies from
engine to engine and may change sign ificantly
over the life of the engine. Typically , engines
with a spec ified break- in period (see
¢ page 201) consume more oil during the
break -in pe riod t han they consume afte r o il
consumption has stabilized.
Under normal cond it ions, the rate of oil con
sumption depends on the q ua lity and viscos ity
of the oil , the RPM (revol utio ns per minute) at
which the engine is opera ted, the ambient
temperature and road conditions . Furt her fac
tors are the amount of oil dilution from water
condensation or fue l residue and the oxida
tion level of the oil. As any engine is subject to
wear as m ileage builds up, the oil consump
t ion may increase over time until replacement
of worn components may become necessary .
With a ll these variab les coming into p lay, no
standard rate of oil consumpt ion can be es
tablished or spec ified . There is no alternative
to regular and frequent checking of the o il lev
el, see
Not e.
If the yellow engine oil level warning symbol
in the instrument clus ter
II lights up, you
shou ld check the oil leve l as soon as possib le
¢
page 229 . Top off the oil at your earl iest
convenience
9 poge 229.
,&. WARNING
Before you che ck anything in the engine
compartmen t, a lways rea d and heed al l
WAR NIN GS ¢.&
in Working in the engine
comportment on page 224 .
-

230 Check ing and filling
- 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 w ith the
engine oil, you must subsequently
cleanse it thoroughly.
(D Note
- Check the oil level using the MMI. If the
message
P lea se red uce oil l evel appears,
contact your author ized Audi dealer or
other qualified workshop to have excess
oil extracted if necessary.
- Aud i do es not recommend the use of o il
addit ive s. They ma y damag e the engin e
and ad versely affect yo ur New Vehicle
Warrant y.
@, For the sake of the environment
- Under no circumstances can the oil come
in contact w it h the sewage network or
the soil.
- Observe and follow lega l regulations
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 anything in the engine com
partment,
al ways read and h eed all WARN
INGS c::> &. in Working in the engine compart
ment on page 224.
The engine oil must be changed according to
the intervals spec ified in your Warranty
&
Maintenance book let . This is very important
because the lubricating prope rties of oil di
minish gradua lly dur ing normal veh icle use.
Under some c ircumstances the eng ine o il
should be changed more frequently . Change
oil more often if you drive most ly short dis
tances , operate the vehicle in dusty areas or
under predominantly stop-and-go traffic con
ditions, or have your vehicle where tempera -tu res remain below freezing for extended pe
riods.
Detergent additives in the oil will make fresh
o il look dar k 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.
Because of the problem of proper disposal,
along with the specia l tools and necessary ex
pertise required, we strongly recommend that
you have your oil changed by an authorized
Aud i deale r or a qualified service station.
If you choo se to chan ge your o il yours elf ,
please note the fo llowing important informa
t ion:
A WARNING
To reduce the risk of personal injury 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-
gine oil, let the engine cool down to the
touch.
- When removing the oil dra in p lug with
your fingers, stay as far away as possible.
Always keep your forearm parallel to the ground to help prevent hot oil from run
n ing down you r arm.
- Dra in the oil into a container designed
for this purpose, one large enough to hold at least the tota l amount of o il in
your engine.
- Engine oil is poisonous . Keep it well out
of the rea ch of children.
- Continuous contact with used eng ine o il
is harmful to your sk in . Always protect
your skin by washing oil off tho roughly
wit h soap and wate r.
(D Note
Neve r mix oil additives with you r engine
oi l. These additives can damage your en
gine and adversely affect your Audi Limit
ed New Veh icle War ranty.

234 Checking and filling
continue to run until the coolant temper
ature drops.
Brake fluid
Checking brake fluid level
Fig. 192 Engine compartment : cove r on the brake fl uid
reservo ir
Before you check anything in the engine com
partment,
always read and heed all WARN
INGS ~ .&. in Working in the engine compart
ment on page 224.
.,. Read the brake fluid level from the brake
fluid reservoir~
fig. 192 , ~ page 226,
fig.
188. The brake fluid leve l must be be
tween the "MIN" and "MAX" markings .
The location of the brake flu id reservoir can be
seen in the engine compartment illustrat ion
~ page 226.
The fluid level may drop slightly after some
time due to the automatic adjustment of the
brake pads . Th is is not cause for alarm.
I f the brake fluid level falls
considerably be
lo w the "MIN" mark, the brake wa rning/indi
cator light
1111 (U.S. models)/ . (Canadian
models) will come on~
page 15. Do not con
tinue to operate the vehicle. The comp lete
brake system should be thoroughly checked
by an authorized Audi dealer or other quali
fied facility and the ca use corrected. If the
brake fluid level is too low, the brake warning/
indicator light w ill illuminate . Contact an au
thorized Audi dealer
immediately .
Changing brake fluid
Have the brake fluid changed by an experi
enced technician .
Brake fluid absorbs moisture from the air. If
the water content in the brake fluid is too
high, corrosion in the brake system may result
after a period of time . The boiling point of the
brake fluid will also decrease considerably and
decrease braking pe rformance .
Therefore, the brake fluid must be changed
every two years. Always use new brake flu id
which conforms to Federal Motor Vehicle
Standard "FM VSS 116 DOT 4".
The brake fluid reservoir can be diff icult to
reach, therefore, we recommend that you
have the brake fluid changed by your author
ized
Audi dealer . Your dealer has the correct
tools, the right brake fluid and the know-how
to do this for you.
A WARNING
- Brake fluid is poisonous . It must be stor
ed only in the closed original container
out of the reach of children!
- Brake failure can resu lt from o ld or inap
propriate brake fluid. Observe these pre
cautions:
- Use only brake fluid that meets SA E
specification
J 1703 and conforms to
Federal Motor Vehicle Standard 116.
Always check with your authorized Audi
dealer to make sure you are using the
correct brake fluid. The correct type of
brake flui d is also ind icated on the
brake fluid reservoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapor lock if
the brake fluid is left in the system too
long. This can seriously affect the effi
c ie ncy of the brakes as well as your
safety. This could result in an accident.
(D Note
Brake fluid will damage the paint of your
vehicle .

@ For the sake of the environment
Because of the pr oblem of proper d isposa l
of brake flu id as we ll as the special tools
requ ired and the necessary expert ise, we
recommend that you have the brake fluid
changed by your author ized Audi dealer .
Battery
General information
Under normal operating conditions, the bat
tery in your Audi does not need any mainte
nance. With
high outside temperatures or
long daily dr ives we recommend that you have
the electro lyte level checked by a service fa
cility . The electrolyte level shou ld also be
checked each time the battery is charged
¢ page 237.
Have the battery checked when you take your
ve hicle in for service . Yo u are well adv ised to
replace a battery that is older than 5 yea rs .
W ith certa in types of a irbag deployment, t he
b attery is d isconnected from the vehicle elec
tr ica l system for safety reasons¢.&.
in Re
pair, core and disposal of the airbags on
page 163.
Disconnecting the battery terminals
Some vehicle functions (power w indow regu
lators , for example) are lost if the battery ter
m inals a re d isconnected. These func tions have
to be re lea rned after the batte ry term inals a re
connected agai n. T o prevent this , the bat tery
should only be d isconnec ted from the vehicle
e lec tric al system when absolu tely necessa ry
for repairs .
Vehicles not driven for long periods
If you do not drive you r vehicle over a period
of severa l days or weeks, ele ctrical compo
nen ts are gr adually cut b ack o r swi tched off .
This redu ces energy cons umption and main
tains starting capab ility over a longer per io d
¢
page 199. Some of the co nvenience func
tions may not operate, s uch as the inte rior
lights or power seat adjustme nt. The conven-
Checkin g and fillin g 235
ience funct ions w ill be available again when
yo u sw itch on the ign ition an d start the en
gine.
Winter operation
D ur ing the w inte r mon ths, bat tery ca pa city
tends to decrease as tempera tures drop . This
is beca use more power is a lso consumed wh ile
starting, and the headlights, rear window de
fogger, etc., are used mo re often.
Avoid unnecess ary powe r consumpt ion, pa r
ticu lar ly in city traffic o r when traveling only
sho rt distances. Let yo ur authorized A udi
dealer check the capacity of the vehicle bat
tery before w inter sets in¢
page 23 7. A well
charged battery will no t on ly prevent star tin g
problems w hen the weather is cold, but w ill
also last longer .
@ Tips
If your vehicle is left standing for seve ral
weeks at extremely low temperatures, the
vehicle battery s hou ld be removed and
stored where it will not freez e. This will
p reve nt it from be ing dam aged and having
to be repl aced .
Working on the battery
Be especially careful when working on or near
the bat tery.
The battery is located in the luggage compar t
ment under the floor . B efo re you che ck any
thi ng in the luggage compartment,
read and
heed all WARNINGS
¢ .&, .
Always heed the safety warnings , when work
i ng on the veh icle batte ry or t he vehicle e lec
t rical sys tem to p reven t inju ry.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM· BO LS and safety precautions when working
on the battery .
®
Always wear eye protection.
•
•

238 Check ing and filling
- Char ge the bat tery i n a we ll ven tilated
area. Kee p away from open flame or elec
trical spa rk. Do n ot smoke. Hydrogen gas
generated b y the battery is explosive.
- To reduce the danger of explosion, never
connect or disconnect charger cables
wh ile the charger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a compe
tent technicia n w ith the proper equ ip
ment.
- Battery acid that may spill during charg ing should be washed off wit h a solution
of warm water and baking soda to neu
t rali ze the acid.
(D Note
Never use a fast charger as a booster to
start the engine. This will se riously dam
age sensitive elect ronic components, such
as control units, relays, rad io, etc., as we ll
as t he battery charger.
Battery replacement
The new battery must have the same specifi
c ations and dimensions as the original equip
ment battery.
Intell igent energy management in your veh i
cle is respons ible for d istributing the e lectr i
cal energy throughou t your vehicle
qpage 199. The intel ligen t energy manage
ment system w ill keep the engine battery
charged better than vehicles without th is sys
tem. To make sure the additional electrical en
ergy is available once again after you have
changed the battery, we recommend that you
install batteries of the same type and ma nu
facture only (the same as those installed at
the time your vehicle was delivered). Specifi
cations a re listed on the battery ho using. Yo ur
author ized de aler must code the b attery in
the energy management system to enable you
to use the energy management fu nctions cor
rectly after replacing the battery. T
he new battery must have the same capacity,
vo ltage ( 12-volts), amperage, construction
and plug sea ling.
When ins tall ing t he battery, make su re the ig
nition and a ll elect rical consume rs are switch
ed off.
(D Note
M ake sure the ven tilat ion hose on the side
of the ba ttery is connecte d, otherwise
fumes or batte ry acid can lea k out .
- Veh icles with the Start-S top-System * are
equip ped with a spec ial cycle-proof AGM
battery . Install ing a d iffe rent type of
battery can cause problems in the vehi
cle e lectr ica l system. Whe n replac ing the
vehicle battery, always install one w ith
the same specifications as the origi na l
battery.
@) For the sake of the environment
Because of the prob lem of proper disposal
of a battery, we recomme nd your author
i zed Audi dealer change the battery fo r
you. Batteri es contain sulfur ic acid and
l ead and must a lways be di spo sed o f prop
erly in comp liance wi th all envi ronmental
regulations. Disposing of vehi cle batter ies
imprope rly is very dange rous to the envi
r onment.
Windshield/headlight
washer container
F ig . 1 94 Engine compartment: cover on the windshield
a n d headlight * was her fl ui d reservo ir
Ill>