2 70 Ch eck ing and filling
per 2,000 km). Consumption may be higher
within the first 3,000 mi les (5,000 km).
Adding engine oil "1:::7':
0 N ;:;
"' "' a:>
F ig . 2 46 Eng ine com part men t: cove r on the eng ine o il
filler neck
Before you check anything in the engine com
partment,
al way s read and h eed all W ARN
ING S
¢.&. in Working in the engine compart
ment on page 264 .
.. Unscrew the cap 't::r. to the engine oil fill ing
hole¢
fig. 246, ¢ page 266, fig . 243.
.. Carefully top off with the appropriate o il in
0 .5 liter doses .
.. Check the oil level aga in after two minutes
¢ page 269.
.. Top off the oil again, if necessary.
.. Screw the cap back on the filling hole and
s li de the oil dipstick in as far as it will go.
& WARNING
Stop! Before working in the engine com
partment, always read and heed a ll WARN
INGS
¢ .& in Working in the engine com
partment on page 264 .
The engine com
partment of any motor ve hicle is a poten
tially dangerous a rea and can cause ser i
ous personal injury.
& WARNING
Spilled o il is a fi re hazard.
- The oil fille r cap must be prope rly se
cured to prevent oil from being sprayed
on the hot engine and exhaust system
w hen the eng ine is r unning.
-
(D Note
- The oil leve l m ust not be above range 0
- danger of converter or engine damage !
Contact an authorized dealership to draw
off oil, if necessary.
- Audi does not recommend the use of oil
additives. They ma y damage the engine
and adversely aff ect your New Vehicle
Warranty .
~ For the sake of the environment
-Under no circumstances can the oil come
in contact with the sewage network or
the so il.
- Observe and follow legal regulations
when dispos ing of empty oil containers.
Changing the engine oil
Engine oil must be changed at intervals listed
in the Warranty
& Maintenance booklet.
The engine oi l and oil fi lter m ust be changed
accord ing to the mileage and time intervals
specified in your vehicle's Warranty
& Mainte
nance booklet . Do not exceed these intervals -
harmful s ludge and deposits from old engine
o il can reduce engi ne pe rformance and can
lead to expens ive engine repa irs.
Chang ing oi l at regular intervals is so very im
po rtant because t he lubricat ing propert ies of
o il decrease gradually du ring normal vehicle
use.
If you are not sure when to have the oi l
changed, ask your a uthorized Audi Servi ce Ad
visor .
U nder some c ircumstances the engine oil
sho uld even be changed more often than
specified for normal use. Change o il more of
ten if you often dr ive short distances, ope rate
the ve hicle in dusty a reas or mostly under
stop-and-go t raff ic conditions, or when you
u se your vehicle where temperatures stay be
low free zing point for long periods.
Detergent additives in the oil will make fresh
oi l look dark after the engine has been run-
ning for a short time . T hi s is normal and is not
IJ,,
a reason to change the oil more often than recommended.
A WARNING
Stop! Before working in the engine com
partme nt, always read and heed all WARN
INGS
q & in Working in the engine com
partment on page 264.
The engine com
partme nt of any motor veh icle is a poten
tially dangerous a rea and can cause ser i
ous pe rsonal injury.
A WARNING
If you must change the engine o il i n your
vehicle:
- Always wea r eye p rotection.
- To reduce the r isk of burns from hot en-
gine oil let the engine cool down to the
t ouch.
- When removing the oil drain plug with
yo ur finge rs, stay as far away as possible.
Always kee p your forea rm pa ra llel to the
ground to he lp prevent ho t oi l from r un
ning down your arm.
- Drain the o il into a co nt ainer designed
f or this p urpose, one large enough to
hold at least the total amount of oil in
yo ur engine .
- T o reduce the r is k of po ison ing, never use
empty food or beverage containers that
might mis lead someone into drinking
from them.
- Engine oil is poisono us. Keep it well out
of the reach of chi ldren.
- Cont in u ous contact with used engi ne oil
is harmful to your skin. Always protect
yo ur sk in by washing tho ro ughly with
soap and water.
(D Note
Never mix oi l addit ives with your engine
oil. These additives can damage your en
gine and adverse ly affect your Audi Limit
ed New Vehicle Warranty.
-
Checkin g and fillin g 2 71
@) For the sake of the environment
-Before changing the oil, first make sure
you know where you can prope rly dispose
of the old o il.
- Always dispose of used oil p ro perly. Nev
er dump it on garden soil, in wooded
areas, into streams or down sewage
dra ins.
- Recycle used o il by tak ing it to a used en
gine oil collection facility in your area, or
contact a service station.
- We strongly recommend that yo u have
your oil cha nged by an authorized Audi
dealer or a qualified wo rkshop with the
special tools a nd expert ise required, and
proper m eans of disposa l.
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.
T he cooling sys tem is sealed and genera lly re
quires little attention.
T he cooli ng system has bee n filled a t the fac
t ory with a permanent coolant which does not
need to be c hanged . The coo lant cons ists of a
mixture of water and the manufacturer's gly
col-based coo lant additive G l3 antifreeze
with anticorrosion additives (50% for USA
models; 60% for Canadian mode ls). This m ix
ture both assures the necessary frost protec
tion and protects meta l compone nts in t he
engine's cool ing system from corros io n and
sca ling.
It also raises the boiling point of the
c oolant.
Do not reduce the concentration of the cool
ant in the s ummer by adding p lai n water .
The
proportion of coolant additive must be at
lea st 50 % but not more than 60 %
to main
tai n antifree ze pro te ct io n a nd coo ling eff icien
cy .
If the coo lant fros t protection is too low,
the coo lant co uld freeze and damage the vehi-
cle heating and engine cooling system. .,..
•
•
272 Che cking and filling
For year-round driving, antifreeze is added at
the factory for temperatures down to:
- -31° F(-35°C)USA
- - 40 °F ( - 40 °C) Canada.
_& WARNING
-
Before yo u check anything in the e ngine
compar tment, alw ays read and heed all
WARN INGS
¢.&. in Working in the engine
compartment on page 264 .
(D Note
- Befo re win ter se ts in, have the coolan t
che cked to see if t he coolant ad dit ive in
you r vehicle is s ufficien t to mee t the cli
mate conditions. T his is especially impor
tant if yo u live in a region where the w in
ter is extremely co ld. If necessary, in
crease the proport io n of coolant additive
to 60%.
- When adding coolant addit ive to your
cooling system, remember:
- We recommend using only coolant ad
ditive G1 2++ o r G13 fo r your vehicle.
Thi s coo lant add itive is available at au
thorized A ud i dealers. Other types of
antifreeze can significantly reduce cor
rosion protection. The res ulting corro
sion can cause a loss of coo lant and se
r ious eng ine damage.
- Do not add any type of radiator leak sea l
ant to your ve hicle's engine coo lant.
Adding rad iator repair fluid may adve rse
ly affec t the function and perfo rmance of
you r cooling system and could result in
damage not cove red by your New Vehicle
Limited Wa rranty.
Checking the engine coolant level
T he engine coolant level can be checked with
a quick glance .
Fig . 2 4 7 Engin e compa rtm en t: Coo lant expansio n ta nk
Befo re you check anyth ing in the en gine com
partment,
alway s read and h eed all WARN
INGS ¢ A in Working in the engine compart
ment on page 264.
.,. Park yo ur vehicle on a level surf ace .
.,. Tur n off the ignition.
.,. Let the engine cool down.
.,. Place a thick rag over the coolant expansion
tank ¢
fig. 24 7, ¢ page 266, fig . 243 and
carefull y twist the cap counter-clockwise
¢,&. .
.,. Read the engine coolant level in the open
coo lant expansion ta nk. W ith a cold eng ine,
the coolant level should be between the "min " and "max " mar kings. When t he en
g ine is wa rm, the level may be slightly above
the "max" mark ing.
T he locat ion of the coo lant expansion tan k
c an be see n in the engine compartmen t illu s
t ration
¢ page 266.
T o obtain an accu rate reading, the engine
must be switched off.
The expansion tank in your veh icle is equipped
with an electr ic coo lant level senso r.
When the coolant leve l is too low, the warning
light in the Auto-Check System¢
page 32 will
blink unti l you add coolant and the level has
been resto red to normal. Even though there is
an electric coo lant level senso r, we still rec
ommend you check the coolant level from
time to t ime .
Coolant loss
Coolant loss may indicate a leak in the cooling
system . In the event of coolant loss, the cool
ing system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant.
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
A WARNING
The cooling system is under pressure and
can get very hot. Reduce the risk of scald
ing from hot coolant by following these
steps.
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise direction while ap
plying light, downward pressure on the
top of the cap.
- To avoid being burned, do not spill anti freeze or coolant on the exhaust system
or hot engine parts. Under certain condi
tions, the ethylene glycol in engine cool
ant can catch fire.
(D Note
Do not add any type of radiator leak seal
ant to your vehicle's engine coolant. Add
ing radiator repair fluid may adversely af
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine com
partment,
always read and heed all WARN
INGS c:;, A in Working in the engine compart
ment on page 264.
Checking and filling 273
.. Turn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank
c:;, page 2 72, fig. 247 and carefully
twist the cap counter-clockwise c:;, &, .
.. Add coolant .
.. Twist the cap on again
tightly.
Replacement engine coolant must conform to
exact specificat ions
c:;, page 2 71, Coolant. We
recommend using only coolant additive G12+
+, G13 or in an emergency G12 +. Do
not use a
different additive. In an emergency use plain
water until you can get the correct additive
and can restore the correct ratio. This should
be done as soon as possible.
If you have lost a considerable amount of
coolant, then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling .
Do not fill coolant above the "MAX" mark. Ex
cess coolant will be forced out through the
pressure relief valve in the cap when the en
gine becomes hot.
A WARNING
- The cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by following
these steps.
- Turn off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap with a large, thick rag.
- Turn the cap slowly and very carefully
in a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avoid being burned, do not spill an
tifreeze or coolant on the exhaust sys
tem or hot engine parts. Under certain
conditions, the ethylene glycol in en
gine coolant can catch fire.
- Antifreeze is poisonous. Always store an
tifreeze in its original container and well
out of the reach of children. .,.
•
•
274 Che cking and filling
-If you drain the coolant, it must be
caught and safely stored in a proper con
tainer clearly marked "poison".
(D Note
- Coolant pollutes the environment and
could cause an engine fire . Excess coo l-
ant will be forced out through the pres
sure relief valve in the cap when the en
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze
c:;, page 271 must be re
stored as soon as possible .
@ For the sake of the environment
Dra ined coolant should not be reused. Al
ways dispose of used coolant while observ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself
The radiator fan is driven by the engine via the
V-belt . The viscous clutch regulates the speed
of the fan accord ing to t he temperature of the
coolant.
An auxiliary electric radiator fan* switches on
and off depending on coolant temperature
and other vehicle operating conditions.
After you switch the engine off, the auxiliary
fan can continue running for up to 10 minutes - even with the ignition off. It can even switch
on again later by itself
c:;, &. , if
- the temperature of the engine coolant rises
due to the heat build-up from the engine in
the engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
_&. WARNING
- To reduce the risk of personal injury nev
er touch the radiator fan . -
The auxiliary electric fan is temperature
controlled and can switch on suddenly
even when the engine is not running.
- The auxiliary radiator fan switches on au
tomatically when the engine coolant
reaches a certain temperature and will
continue to run until the coolant temper
ature drops.
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
quick glance.
Fig. 248 Eng ine compart men t: cover on the brake fluid
reservoir
Before you check anyth ing in the engine com
partment,
always read and heed all WARN
INGS c:;, _&. in Working in the engine compart
ment on page 264.
.,. Read the brake fluid level from the brake
fluid reservoir
c::> fig. 248, c:;, page 266,
fig. 243.
The brake fluid level m ust be be
tween the "MIN" and "MAX" markings.
The brake fluid reservoir is located at the rear
part ition of the engine compartment on the
left side
c:;, page 266.
The fluid level may drop slightly after some
time due to the automatic adjustment of the brake pads. This is not cause for alarm .
If the brake flu id level falls
considerably be
low the
"MIN" mark, the brake warn ing/indi
cator light ( U.S. models:
1111 , Canadian
models :. will come on
c::> page 19 and
c::>page 32. Do not continue to operate the ve-
hicle. The complete brake system should be ..,.
thoroughly checked by an authorized Audi
dealer or qualified workshop and the cause
corrected .
If the brake fluid level is too low ,
the brake warning/indicator light will i llum i
nate. Con tact an au thori zed Aud i dealer
im ·
mediately .
@ Tips
The brake fluid reservoir is located under
neath the cover.
Changing brake fluid
Have the brake fluid changed by an experi
enced technician .
Brake fluid absorbs moist ure from the a ir. If
the water content in the brake fluid is too
h igh, corrosion in the brake system may result
after a per iod of t ime . The bo iling po int of the
brake fluid w ill also decrease considerably and
decrease b raking performance .
Therefore, the brake flu id must be changed
every two years . Always use new brake fluid
which conforms to Federal Motor Vehicle
Standa rd "FMVSS 116 DOT 4".
The brake f lu id reservoir can be difficult to
reach, therefore, we recommend that yo u
have the brake f lu id changed by your author
i zed
Audi dea ler . Your deale r has the co rrect
too ls, the right b rake fluid and the know-how
to do this fo r you.
_& WARNING
- Br ake fluid is po isonous . It must be s to r
ed only in the closed orig inal con tainer
o ut of the reac h of c hildren!
- Br ake f ailure can resu lt from old or in ap
propr iate b ra ke fluid. Observe these pre
caut ions:
- Use on ly brake fluid that meets SAE
specif ication
J 1 703 and conforms to
Federal Motor V ehicle Sta ndard 116.
A lways check wi th you r auth o riz ed Audi
deale r to ma ke s ure you are using the
correct brake flu id . T he correc t type of
Checkin g and fillin g 275
brake f luid is also ind icated on t he
brake f luid rese rvoir.
- The bra ke fl uid must be new. Heavy use
of the brakes can cause a vapo r lock if
the brake fluid is left in the system too
l ong. This can seriously affect the effi
c iency of the brakes as well as your
safe ty. This co uld resu lt in an accide nt.
(1) Note
Brake fluid will damage the paint of your
vehicle.
@) For the sake of the environment
Because o f the prob lem of proper disposal
of brake fluid as well as the spec ial too ls
required and the necessary expertise, we
recomme nd that you have the brake flu id
changed by you r autho rized Aud i deale r.
Battery
General information
U nder normal operating cond itions, the bat
tery in your Audi does not need any ma inte
nance. With
high outside temperatures or
long da ily drives we recommend that you have
the e lectrolyte level chec ked by an au thorized
Audi dealer or qualified wo rkshop . The elec
t ro lyte level should also be che cked each time
t h e battery is cha rged
~ page 2 77.
Have the battery checked when you take your
vehicle in for se rv ice . You a re well advised to
replace a battery that is o lde r th an 5 years .
With certain types of airbag deployment, the ba tte ry is disconnected from the ve hicle elec
t rical sys tem for safety reasons
~ A in Re
pair, care and disposal of the airbags on
page 198.
Disconnecting the battery terminals
Some vehicle fu nctions (power window regu
lators, fo r example) are lost if the battery te r
mina ls are disconn ected . T hese functions have
to be relearned after the bat tery termina ls are
conne cte d ag ain. To p revent t his, the battery .,.
•
•
2 76 Chec king and filling
should only be disconnected from the vehicle
e lectrical system when absolutely necessary
for repairs.
Vehicles not driven for long periods
If you do not drive your vehicle over a pe riod
of several days or weeks, electrical compo
nents are gradually cut back or switched off.
This reduces energy consumption and main
tains starting capab ility over a longer period
<=> page 231.
Take into consideration that when you un lock
your vehicle, some convenience functions, such as the interior lights or the power seat
adjustment, may not be available. The con
venience functions will be available again
when you turn on the ignition and start the
engine .
Winter operation
During the winter months, battery capacity
tends to decrease as temperatures drop . This
is because more power is also consumed while
starting, and the headlights, rear window de
fogger, etc., are used more often .
Avoid unnecessary power consumption, par
ticularly in city traffic or when traveling only
short d istances . Let your authorized Audi
dealer check the capacity of the vehicle bat
tery before w inte r sets in
<=> page 277. A well
cha rged battery w ill not only prevent starting
p rob lems when the weather is cold, but will
a lso last longer.
(D Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the
vehicle battery should be removed and
stored where it will not freeze . This wi ll
prevent it from being damaged and having
to be replaced.
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located under the driver 's seat.
Before you check anyth ing under the driver 's
seat,
read and heed all WARNINGS c:> _&.
Always heed the safety warnings, when work
ing on the vehicle battery or the vehicle elec
trical system to prevent injury.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM BOLS and safety precautions when working
on the battery.
® Always wear eye protection .
b.. Battery acid contains sulfuric acid . Al
~ ways wear gloves and eye protection.
~ No
\!:!Y -sparks
- flames
- smoking.
A When a battery is charged, it produces
~ hydrogen gas which is explosive and
could cause personal injury.
Always keep the battery well out of reach of children.
,&. WARNING
Whenever working on the battery or on
the electrical system, there is the risk of
injury, accident and even fire . Read and
heed the following WARNINGS:
- Always wear eye protection. Do not let
battery ac id or any lead particles get on
your skin or clothing. Shield your eyes .
Exp losive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid. Sulfu
ric acid can cause blindness and severe
burns.
- Always wear g loves and eye protection.
-
Do not tilt the battery because acid ~
could leak out of the ventilation open
ings.
- If you get battery acid in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get
medical attention.
- If you should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light.
- Do not smoke.
- Do not interchange the positive and neg-
ative cables.
- When working on the battery, be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion and personal injury.
- When a battery is charged, it produces hydrogen gas which is explosive and
could cause personal injury.
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys tem, disconnect the negative ground ca
ble .
- Before performing any work on the elec
trical system, switch off the engine and
ignition as well as any electrical equip
ment . The negative cable on the battery
must be disconnected. If you are just go
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other
wise you will set off the alarm.
- When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch
ed off. Reconnect the positive cable first
and then the negative cable. Never inter
change the cables -this could start a fire!
- Never charge a frozen or a thawed-out
battery. It could explode! If a battery has
fro zen, then it must be replaced. A dis-
Checking and filling 2 77
charged battery can freeze over at 32 °F
(0 oc).
-Make sure the vent hose is always attach
ed to the opening on the side of the bat
tery .
- Never use batteries which are damaged.
There is the danger of an explosion! Al
ways replace a damaged battery.
A WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac
cessories contain lead and lead com pounds, chemicals known to the State of
California to cause cancer and reproduc
tive problems . Wash hands after han
dling.
(D Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when the engine is running, otherwise, you will
damage electronic components in the
electrical system.
- If your vehicle is going to stand for a
long period of time without being driven ,
protect the battery from "freezing ", oth
erwise it will be damaged and will then
have to be replaced.
Battery charging
Starting the engine requires a well charged
batt ery.
Fig. 249 Engin e compart men t: Co nnectors fo r charger
and j umper ca bles ..,_