check engine light AUDI S8 2012 User Guide

- The buttons for the power sun shades* in
the side windows,
- The buttons for the power sun shade* in the
rear window,
- Front passenger power seat adj ustment *
button.
_& WARNING
- When you leave your vehicle -even if on­
ly briefly- always take the ignition key
with you. This applies particularly when
children remain in the veh icle. Otherw ise
the ch ildren could start the engine or op­
erate electrical equ ipment (e.g. power
w indows) . The power windows are func­
t ional until t he driver's door or passeng­
er's door has been opened.
- Be careful when closing the windows.
Check to see that no one is in the way, or
serious injury could result!
- When lo cking the veh icle from outside,
t he ve hicle must be unocc upied s in ce the
w indows can no longer be opened in an
emergency.
(D Tips
- The dr iver can lower or raise the power
sun shades * in the side windows by us ing
swi tches © and
@.
-After the ignition has been switched off,
the windows can still be opened o r
closed for about 10 minutes . The powe r
windows are not switched off until the
driver's door or passenger's door has
been opened.
What to do after a malfunction
The one-touch open and close function must
be reactivated if the battery hos been discon ­
nected.
• Pull and hold the power window switch un­
ti l the window is fully closed.
• Release the switch and then pull it again for
at least one second .
Openin g an d clos ing 39
Valet parking
The valet parking feature protects the lug­
gage comportment from unauthorized ac­
cess.
F ig. 30 Valet par king button
Wi th "valet parking" a ctivated, the rear lid
cannot be opened.
• Remove the mechanical key
c::;, page 29 .
• Open the glove compartment and activate
c::;, fig. 30 the "valet parking" feature by
pressing the
! VALET I b utton. The indicator
light in the swi tch illuminates.
• Close the glove compartment and lock it
w ith the mechanical key.
• Leave the master key with the se rvice per ­
sonnel for park ing and keep the mechanical
key with you.
When the "valet parking" feature is activated:
- the unlocki ng button fo r the rear l id
c:s in
the dr ive r's door is inactive
- the button
c:s on the mas ter key is inac tive
- the opening handle in the rear lid is inact ive .
The vehicle can be driven and locked and un­
locked with the master key. Access to the lug­
gage compartment is blocked.
When the valet parking function is switched
on, the message
Vale t par king acti vated ap­
pears in the instrument cluster display when
you sw itch the ignition on.

@ Tips
-ABS and ASR on ly work correctly when
all four wheels are equ ipped with identi­
cal t ires. Different tire s iz es can lead to a
reduct ion in eng ine power.
- You may hear noises when the systems
described are working.
- If the indicator light
D] or m (USA
models) ;£1 (Canada models) appears,
there may be a malfunction¢
page 19,
c> page
18 .
Switching on and off
ESC
turn s on au tomatically when you s tart
the engine .
Fig. 167 Cen te r con sol e wit h ES C OF F but ton
Switching ASR off (sport mode )
In certain sit uat ions, you can switch ASR and
ESC in to sport mode by pressing the bu tton
[ru
c> fig. 167 . The indicator light I comes o n
and the message
Cauti on! R edu ced t ra cti on
appears. ASR deactivates completely and the
assistance provided by the ESC system is lim it­
ed . Switch to sport mode only when your driv ­
ing skills, traffic and weathe r conditions per­
mi t.
I n some s ituations, it may be useful to switc h
ASR off to let the wheels slip. Example:
- Rocking the vehicle back and forth when it is
stuck
- Driv ing in deep snow or on loose ground
- Driving with snow cha ins
Switching ASR on
Press the button [fil again. The message Sta­
bility program on
appears.
Intelligen t technolog y 189
A WARNING
-Drive whee ls can sp in and you can lose
control of the vehicle more eas ily when
ASR and ESC are in sport mode, especial­
ly whe n the road is slippe ry .
- Sw itch to sport mode only when your
driving skills, traff ic and weather condi­
tions permit.
(D Tips
You cannot sw itch sport mode on whe n
adaptive cruise control* is working .
Braking
General information
What affects braking efficiency?
Operating cond itions and driving h abits
The brakes o n today's automobiles are still
subject to wear, depend ing largely on operat­
i ng condit ions and driving habits ¢&, . On ve­
hicles that a re either dr iven most ly in stop­
and-go c ity t raff ic or are dr iven hard, the
brake pad s should be checked by yo ur author ­
i zed Audi dealer more often than specified in
the
Warranty & Maintenance booklet. Failure
to have your brake pads inspected can result in reduced brake performance.
On steep slopes, you sho uld use the braking
effect of the eng ine . T his way, you prevent un­
necessary wear on the brake system . If you
must use your brakes, do not hold the br akes
down cont inuous ly . Pump the brakes a t in ter­
vals .
Moisture o r ro ad sa lt
Under certa in conditions, for example, when
driv ing through water or very heavy ra in, or
even after washing your veh icle, the braking
effec t can be reduced due to moisture (or in
freez ing cond itions ice) on the brake pads . A
few carefu l brake applications should dry off
the b ra ke pads or remove a ny ice coatings.
When you are driving a t higher speeds with
the windsh ie ld w ipers on , the brake pads will
IJJJ,

196 Driving and en vironm ent
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads:
- The water must not be any higher than the
bottom of the vehicle body.
- Do not drive faster than wa lking speed.
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
sto re the full braking effect.
@) Note
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through water.
- Check the depth of the water before dr iv­
i ng through it.
- Do not stop the vehicle, drive in reverse
or switch the engine off when driving
through water .
- Keep in mind that oncoming vehicles
may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely.
- Avoid dr iving through salt water because
i t can cause corrosion.
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.
Fuel economy, environmenta l impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- operating conditions
- technical limitations
If you anticipate what you need to do next and
drive economically, you can easily cut your
fuel consumpt ion by 10-15 percent . This sec­
t ion will give you some tips on how you can
help the env ironment and your pocketbook.
@ Tips
The consumption estimates as published
by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehi­
cle load and speed, road and weather con ­
ditions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac­
celerating.
.,. Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they are ac­
ce lerating. If you anticipate what is going to
happen next, you will need to brake less and,
thus, acce lerate less . Let the vehicle coast
whenever possible - for example when you see
that the next traffic light is red.

Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
"" Try and keep well below your car's maxi-
mum speed.
Accelerating gently reduces fuel consump­ tion, engine wear, and does not disturb the
environment.
F ue l consumption, exhaust emissions and en ­
g ine noise increase disproportionately at high
speeds. If you drive at approximately three
quarters of top speed, fuel consumption will be reduced by one half. Never drive faster
than the posted speed limit and weather con­
d itions permit .
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
"" Shut the engine off when you are not driv­
ing the vehicle.
"" Do not warm up the veh icle by letting the
engine run at idle .
It makes sense to shut
off the engine in traff ic
jams, when waiting for trains to pass at ra il­
road crossings, or at traffic lights that have
l ong wa its on red. Turning the engine
off fo r
just
30-40 seconds saves more fue l than is
bu rned starting the eng ine again .
It takes a long time for the engine to warm up
fu lly when it is running at idle. However, wear
and nox ious em issions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting . If warning lights should come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
produces heat, which cou ld result in over-
Dri vin g and en vironm ent 197
'
heating o r othe r damage to the veh icle or
other p roperty .
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
"" Have your veh icle serviced at reg ular i nter-
vals.
By having your veh icle regu la rly serviced by an
Audi dealer he lps to ensu re that it runs prop­
erly and economically. The condition of your
vehicle not only affects its sa fety and ability to
hold its value, it a lso affects
fuel con sump­
tion .
Check your oil e ach t ime you fill your tank .
The amount of o il used is re lated to eng ine
load and speed .
It is normal for the oil consumption of a new
engine to reach its lowest value after a certa in
mileage has been driven .
You must drive your veh icle about 3,000 m iles
(5,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en­
gine output.
(U) Note
- Have your vehicle maintained properly
and in accordance with the service rec­
ommendations in your Warranty
& Ma in­
tenance booklet . Lack of proper mainte­
nance as well as improper use of the ve­
hicle will impair the function of the
em iss io n cont ro l system and cou ld lead
to damage.
- Do not alter or remove any component of
the Emission Control Sys tem unless ap­
proved by the manufacture r.
- Do not alter or remove any device, such
as heat shie lds, swit ches, ign it ion w ires,
valves, which are designed to p rotec t
your vehicle's Emission Control System
and other important vehicle compo­
nents .
•
•

200 Trailer towing
Trail er load dis tr ibut ion
Be sure the load in the trai ler is held securely
in place to prevent it from shifting forward,
backward or sideways.
N eve r all ow a p assenger to rid e in a trailer
~ .&. in Driving instructions on page 201.
Engine cooling sy stem
Towing a tra iler makes the eng ine work hard­
er . It is important that the cooling system's
performance is up to the addit ional load .
Make sure that the cooling system has eno ugh
flu id.
Tir e pressure
When tow ing a tra iler, inflate the t ires of your
vehicle to the co ld tire pressure listed under
" Full load" on the label loca ted o n the dr iver's
side B-pillar (v is ible when the door is open).
I nflate trailer tires to tra iler and tire manufac­
turers' specifications.
Lights
Check to make sure both veh icle and trailer
l ights are wor king p roperly.
Safe ty chain s
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve ­
h icle . Leave enough slack in the chains to per­
mit turning corners. When you install safety
cha ins, make sure they w ill not drag on the
road when yo u are driving.
The chains shou ld cross under the tra iler
tongue to prevent it from dropping in case of
separat ion from the hitch .
Adjusting the Audi drive select
Make sure the vehicle is on a level surface be­
for e
hitching up the tra iler and b efor e adjust ­
ing the tongue weight . The vehicle must be i n
auto or comfort driving mode and not raised
~ page 103, ~CD .
Make sure that the vehicle is lowered . In Info ­
tainment, select:
I CARI function button> Lo w­
e r
control button . If you must drive under poor road conditions,
you can raise the vehicle
afte r coupling the
trailer or
a fter adjust ing the tongue we ight
~ page 105.
(D Note
-Changes in temperature or load can af­
fect the height of the vehicle .
- Always select auto or comfort mode .
Otherwise, the tongue load specified for
your vehicle will no longer be applicable.
Driving instructions
Driving with a trailer always requires extra
core and consideration.
T o obtain the best possible hand ling of vehicle
and trailer, please note the fo llowing:
.. Do not tow a loaded t railer when you r ca r it­
self is not loaded .
.. Be especially carefu l when passing other ve ­
hicles .
.. Observe speed limits.
.. Do not drive at the maximum permissible
speed .
.. Always apply brakes early .
.. Monitor the temperature gauge .
Weight distribut ion
T owing a loaded trailer with an empty car re ­
s ul ts in a highly unstable distribution of
weight. If this cannot be avoided, drive at very
low speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con­
trol. This means that the tow vehicle should
be loaded to the extent possible and permissi­
ble , while keep ing the trailer as light as possi­
ble under the ci rcumstances. Whenever poss i­
ble, transfer some cargo to the luggage com­
partment of the tow vehicle while obse rv ing
tong ue load requi rements and vehicle load ing
considerations .
Speed
The higher the speed, the more d ifficu lt it be­
comes for the driver to control the rig. Do not
1111>

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 172 Dr iver footwell: release lever
AUD I
Fig. 173 Rocker switch under the hood
Make sure the wiper arms are not raised up
from the w indshield. Otherw ise the paint
could be damaged.
.. Pull the lever under the instrument panel in
the d irect ion of the arrow
<=> fig. 172.
.. Raise the hood slightly<=> _&.
.. Press the rocke r switc h under the hood up­
ward
<=> fig. 173. This re leases the catch .
.. Open the hood .
A WARNING
Hot engine coo lant can burn you.
- To reduce the r isk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
Checkin g and fillin g 219
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Wh ene ve r y ou must perform an y wo rk in the
eng ine com pa rtm ent , for e xample checking
a nd filling diff ere nt fluids, th ere is a risk of
inju ry, burn s and accid ent s. To pr event per­
so nal injury alwa ys observe the foll owing
WARNING S. The engin e compartment of an y
v e hicle i s a h az a rdou s are a
<=> ,&.
_&. WARNING
To help avoid injury, be fore yo u check any ­
thing under the hood:
- Turn off the engine .
- Sw itch off the ignition.
- Apply the parki ng brake.
- Move selector leve r to "P" (Park).
- Always let the engine cool down. Hot
components w ill burn skin on contact .
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo la nt escaping from the engine
compa rtment. Wait unt il no steam or
coolant can be seen o r heard before care­
fu lly opening the hood.
- Keep ch ildren away from the engine com­
pa rtment.
- Never sp ill fluids on hot engine compo­
nents . They can cause a fire .
- Never touch the rad iator fan. The auxili­
ary electric fan is temperat ure controlled
a nd can sw itch on suddenly .
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
a nt system is p ressu rized and hot cool­
a nt cou ld spray o ut.
- Protect your face, hands and arm from
steam or hot engine coolant by plac ing a
thick rag ove r the cap when you open the
coo lant rese rvoir.
- If work on the fue l system o r the elec tri­
cal system is necessary:
- Always disconnect the battery.

222 Check ing and filling
(D Windshield/headlight washer
t . (
PP. ) con ainer ""' .......... ... . 234
@ Jump start point( -) with hex
head screw . .. .......... ... . 233 , 270
@ Jump start point( +) under a cov-
er . ..... .............. ... . 233, 270
© Eng ine oil filler cap(~) . . . . . 225
® Brake fluid reservo ir ((0)) . . . . . 229
® Coolant expansion tank (-L) . . . 227
0 Power steering reservoir . . . . . . 191
@ Oil dipstick . . . . . . . . . . . . . . . . . 225
The engine oil filler neck (item@) may be lo­
cated in a different area depend ing on the ver­
sion of the engine .
& WARNING
Before you check anything in the engine
compartment, always read and heed all
WARNINGS¢ .&.
in Working in the engine
compartment on page 219.
Engine oil
Engine oil specifications
The engine oil used in your Audi needs the
right kind of oil.
-
The engine in your Audi is a sophisticated
powerp lant that was built to exacting specifi­
cations . This engine needs the r ight kind of
engine o il that meets spec ificat ions regarding
qua lity and viscos ity so that it can run
smoothly and reliably . Choos ing the righ t oi l
and changing oil within the time and mileage
interva ls printed in your vehicle 's Warranty
&
Maintenance book let matters a lot more to­
day than it did years ago. Audi has developed
a special quality standard for engine oil that
will help assure that your veh icle's eng ine will
get the lubrication it needs for proper opera­
tion.
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 trad itional petrole -u
m -based oils, making them a smart choice
for use throughout the life of your Audi.
Whether you use synthet ic o r petro le um­
based eng ine oil, the oi l that you use m ust
conform to Audi's oi l quality standard
VW 502 00 to help keep your vehicle's engine runn ing smooth ly and help prevent the for­
mation of harmfu l deposits, sometimes called
"sludge," that over time can lead to expensive
repairs.
At the time of printing, engine oils ava ilable in
the U.S. and Canada that meet the exacting
specifications of Audi oil standard VW 502 00
are synthet ic eng ine oils . Th is does not mean,
howeve r, that every synthetic engine oil will
meet Audi o il standard VW 502 00 . So always
be su re that you use an approved oil.
To help prevent the formation of harmfu l de ­
pos its use only o il w ith the following specifi­
cations pr inted on the o il conta iner:
Audi oil standard VW 502 00
Oil container labels may carry the specifica­
tion sing ly or in combination with other desig ­
nations and oil quality standards.
V is cos ity
Engine o ils are graded a ccord ing to their vis­
cosity . The proper vis cos ity grade oil fo r yo ur
engine depends on climactic or seasona l con­
ditions where you drive. You can use oil with a
viscosity grade of SAE 5W40 across a ll tem­
perature ranges for norma l driving conditions.
However, if engine oil v iscosity g rade SA E
SW40 is not available , you can also use viscos ­
ity grade SAE SW-30 or SAE OW-40 as long as
it meets Audi oil qua lity standard VW 502 00
specifications.
Beca use engine oi l that meets the Audi oil
standard may not be availab le everywhere
when you need it, we strong ly recommend
that you a lways carry with you an extra quart
( li ter) of oil that express ly conforms to the
VW 502 00 spec ificat ion, in case you have to
top off the o il while o n the road . ..,_

228 Checking and filling
the level may be slightly above the "max"
marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 221.
To obtain an accurate reading, the engine
must be switched off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning light in the Auto-Check System¢
page 15 will
illuminate until you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor , we
still recommend you check the coolant level
from time to time.
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.
_& 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 ¢&. in Working in the engine compart ­
ment on page 219.
.. Turn off the engine .
.. Let the engine cool down.
.. Place a thick rag over the coolant expansion
tank
¢ page 227, fig . 179 and carefully
twist the cap counter-clockwise ¢,&. .
.,. Add coolant.
.. Twist the cap on again
tightly.
Replacement engine coolant must conform to
exact specifications
¢ page 22 7, Coolant. We
recommend using only coolant additive G12+
+, G3 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.
_& WARNING
-= -- The cooling system is under pressure and
can get very hot. Reduce the risk of ..,_

scalding from hot coo lant by following
these steps.
- Turn
off the engi ne and a llow it to cool
down.
- Protect your face, hands and arms from
escapi ng fl uid and steam by cover ing
the cap with a large, thick rag .
- Turn the cap slowly and very ca refully
i n a cou nte r-clockw ise dir ect ion while
a pply ing lig ht, downwa rd p ress ure on
the top of the cap.
- T o avo id being burned, do no t sp ill an­
tifree ze o r coolan t on t he exh aust sys­
tem or ho t engine parts . Un der certain
conditions, the ethylene glyco l in en­
gine coolant can catch fire .
- Antifree ze is poisono us. Always store an­
tifreeze in its or iginal co ntainer and we ll
o ut o f the reac h of children.
- If you drain the coolant , it must be
caught and safely stored in a p roper con ­
tainer clear ly marked "poison".
(D Note
- Coolant po llutes the env ironment and
could ca use a n engine fire . Excess coo l­
ant wi ll be forced out through the pres ­
sure re lief va lve 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¢
page 22 7 must be re­
stored as soon as possib le .
@ For the sake of the environment
Drained coolant should not be re used . Al­
ways dispose of used c oolant while observ­
ing all envir onmental regulations .
Radiator fan
The radiator fan switches on automa tically by
itself
T he radiator fan is driven by the engine via the
V-be lt. The viscous clutch regulates the speed
of the fan according to the temperature of the
coolant .
Checkin g and fillin g 229
An auxiliary electric radiato r fan* sw itches on
and
off depending on coolant temperature
and othe r vehicle ope rat ing con ditions.
After yo u switc h the engi ne off, the aux iliary
f an can con tinue r unning for up to 10 minutes
- even with the ignition off. It can even switch
on again later by itself¢ & , if
- t he temperatu re of the engine coo lant rises
due to the heat b uild -up from the en gine in
the engi ne compartment, or
- the engine compartment heats up be cause
the vehicle is parked in intense sunlight.
A WARNING
- To reduce the risk of personal in jury nev­
er touch the radiator fan.
- The a uxiliary electric fan is temperat ure
contro lled and can switch on sud denly
even when the engine is not running.
- The a uxiliary radiator fa n switches on a u­
tomatically when the engine coo lant
reaches a certain temperature and will
continue to run until the coo lant temper­
ature drops .
Brake fluid
Checking brake fluid level
The brake fluid level can be checked with a
qui ck glance.
Fig. 180 En gin e compar tment: cov er o n th e bra ke fluid
r ese rvoir
Befo re you check anyth ing in the eng ine com­
partment ,
always re ad and heed all WARN­
INGS c::> ,& in Working in the engine compar t-
ment on page 219 . .,..

230 Check ing and filling
• Read the brake fluid level from the brake
fluid reservoi r¢
fig. 180, ¢ page 221. The
brake f lu id leve l must be between the "MIN"
and "MAX" markings.
The location of the brake fluid reservoir can be
seen in the engine compartment illustration
co page 221.
The fl uid level may drop slightly after some
time due to the automatic adjustment of the brake pads . This is not cause for alarm .
I f the brake fluid level falls
considerably be­
l ow the "MIN" mark, the brake wa rning/indi ­
cator light- (U.S.
models) ;II (Canadian
models) will come on ¢
page 14. 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 fac ility and the cause corrected. If the
brake fluid level is too low, the brake war ning/
in dicato r light w ill illuminate . Contact an au­
thor ized A udi dealer
immediately .
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician .
Brake fluid absorbs moistu re 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
b rake fluid w ill also decrease considerably and
dec rease braking per formance.
Therefore, the brake flu id must be changed
e ver y two yea rs. A lways use new b rake fluid
which confo rms to Fede ral Motor Vehicle
Standard "FMVSS 1 16 DO T 4".
The brake flu id rese rvoi r ca n be difficult to
r ea ch, therefo re , we re commend that yo u
have the brake fl uid changed by yo ur a utho r­
ized
Audi dealer. Your dea ler has the correct
too ls, the right brake fluid and the know-how
to do this for you .
A WARNING
-Brake flu id is poisonous. It must be stor­
ed only in the closed or iginal conta iner
out of the reach of children!
- Brake failure can resu lt from o ld or inap­
prop riate brake flu id . Obse rve these pre ­
cautions:
- Use only brake fluid that meets SA E
specification
J 1703 and conforms to
Federa l Moto r Ve hicle Standard 1 16 .
A lways check with your authorized A udi
dealer to make sure you are using the
correct brake fluid . The cor rect type of
brake flu id is also ind icated on the
brake flu id rese rvoir .
- The brake fluid must be new . Heavy use
of the brakes can cause a vapo r lock if
the b ra ke fluid is left i n the system too
l o ng. This can se riously affect the effi ­
c iency of the br akes as well as your
sa fety. This co uld resu lt in an accident.
(D Note
Brake fluid will damage the pai nt of you r
vehicle.
@ For the sake of the environment
Because of the p rob lem of proper disposal
of b ra ke fluid as well as the spec ial too ls
r equired and the nece ssary expe rti se, we
r ecommend that yo u have the brake fl uid
changed by yo ur authorized Aud i dea ler.
Battery
General information
U nder normal operat ing cond itions, the bat­
te ry in yo ur Audi does not need any ma inte­
nance . With
high outside temperatures or
l o ng da ily d rives we recommend that you have
the e lec trolyte leve l checked by a serv ice fa­
c ility. The electrolyte leve l should also be
checked each time the battery is cha rged
¢ page 233. .,..