ignition AUDI Q3 2016 Service Manual

Child safet y
A WARNING
Improperly installed child safety seats in­
crease the risk of serious personal injury and
death in a collision.
- Always make sure that the safety belt re­
tractor is locked when installing a child
safety seat . An unlocked safety belt retrac­
tor cannot hold the child safety seat in place
dur ing no rma l driving or in a crash.
- Always buckle the child safety seat firmly in
pla ce even if a child is not s itting in i t. A
loose child safety seat can f ly around d uring
a sudden stop or in a coll is ion .
- Always make sure that the rear seat bac k­
rest to which the center rea r safety be lt is
attached is securely latched whenever the
rear center safety belt is being used to se­
cure a chi ld restraint.
- If the backrest is no t securely latched, the
child and the child restraint will be thrown
forward together with the backrest and will
strike parts of the vehicle interior. The child
can be seriously injured or killed.
- Never install rear-facing child safety seats or infant carr iers on the front passenger
seat. A child will be seriously injured and
can be killed when the passenger airbag in ­
flates .
- The inflating a irbag w ill hit the child safety
seat or infant car rier with great force and
will smash the chi ld safety seat and child
against the backrest, center armrest, doo r
o r roof.
- Always install rear-facing child safety seats
o r infant carr iers on the rear seat.
- Forward-facing ch ild safety seats or infant
carr iers installed on the front passenger's
seat may inte rfere with the deployment of
the airbag and cause serious injury to the
child.
- It is safer to install a forward-facing ch ild
safety seat on the rear seat.
- Always read and heed all WARN INGS when­
ever using a child restrained in a veh icle is
being used
r=> page 132. Specia l preca utions
apply when installing a child safety seat on
the front passenger seat
r=> page 113, Child
142
restraints on the front seat -some impor­
tant things to know.
A WARNING
Always take special precautions if you must
install a forward or rearward-facing child re­
stra int on the front passenger's seat in excep ­
tional s ituations:
- Whenever a forward or rearward-fac ing
child restraint is installed on the front pas­
senger seat, the
PASSENGER AIR BAG OFF
light must come on and stay on whenever
the ignition is switched on.
- If the
PASSENGER AIR BAG OFF light does
not come on and stay on, perform the
checks described
r=> page 122, Monitoring
the Advanced Airbag System.
- Take the child restra int off the front passen­
ger seat and install it prope rly at one of the
rear seat positions if the
PA SSENGER AIR
BAG OFF
light does not stay on whenever
the ignition is switched on .
- Improper installation of child restraints can reduce their effectiveness or even prevent
them from providing any protect ion .
- An improperly installed child restraint can
interfere with the airbag as it deploys and
serious ly injure or even kill the child.
- Always carefully follow the manufacturer's
instructions provided with the child safety
seat or carrier.
- Never p lace additiona l items on the seat
that can increase the tota l weight registered
by the weight-sensing mat and can cause in­
jury in a crash.
A WARNING
Forward-facing child restra ints:
-Always make sure the forward-facing seat has been des igned and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and side airbag .
- Never put the forward-facing child restraint
up, against or very near the instrument pan-
-
el. ~

-Always move the passenger seat into its
rearmost position in the seat's fore and a ft
adjustment range , as fa r away from the air­
bag as possible before installing the for­
ward-facing child r estra int. T he backrest
must be adjusted to an upright posit io n.
- Make sure tha t th e
PA SSEN GER AIR BAG
OFF
light comes on and stays on all the tim e
w henever the ignition is switched on.
A WARNING
Rearwa rd-facing child restra ints:
- A ch ild in a rearward-facing child safety seat
installed on the front passenger seat wi ll be
seriously injured and can be killed if the
front airbag inflates - even with an Ad­
vanced Airbag System .
- The inflating a irbag w ill hit the child safety
seat or infant carrier with great force and
will smash the chi ld safety seat and chi ld
against the backrest, center armrest, door
or roof.
- Always be especially careful if you must in­
stall a rearward facing child safety seat on
the front passenger seat in exceptional c ir­
cumstances.
- A tight tether strap on a rearward-facing
child restraint attached to the front passen­
ger seat can put too much pressure on the
we ight-mat in the seat and register a heavi­
er we ight in the Advanced Airbag System.
The heavier we ight registered can make the
system work as though an adult were on the
seat and deploy the Advanced Airbag when
it m ust be suppressed c ausing serious or
even fatal injury to the child.
- Make sure tha t the
PASSENGER AIR BAG
OFF
light comes on and stays on all the time
whenever the ignition is switched on .
-If the PASSENGER AIR BAG OFF light does
not come on and stay on, immedia tely in ­
stall the rear-facing child safety seat in a
rear seating position and have the airbag
system inspected by your Aud i dealer .
Child safety
Activating the convertible locking retractor
Use the convertible locking retractor to secure a
child restraint .
Always heed the ch ild safety seat manufacturer 's
instruct ions when installing a child restraint in
your vehicle. To activate the convertible locking retractor:
.. Place the child restraint on a seat, preferably
on the rear seat .
.. Slowly pull the belt
all the w ay out .
.. Route it around or through the child restra int
be lt path
¢ & .
.. Push the ch ild safety sea t down with you r full
weigh t to ge t the safety belt really tight.
.. Insert the belt tong ue into the b uck le for that
seating position .
.. Guide the safety belt back into the retractor un­
til the belt lies flat and snug on the child safety
seat .
.. You should hear a ''cl icking" noise as the belt
w inds back into the inertia reel. Test the con ­
vert ib le lock ing retractor by pull ing on the belt .
You shou ld no longer be able to pull the belt
out of the re tractor. The convertib le loc kin g re­
t ractor is now activated.
.. Make sure that the red release button is facing
away from the c hild rest raint so that it can be
unbuckled quickly .
.. Pull on the belt to make sure the safety belt is
properly tight and fastened so that the seat
cannot move forward or sideways more than
one inch (2 .5 cm) .
A WARNING
Using the wrong ch ild rest raint o r an improp­
e rly inst alled child restra int can cause se rious
person al injury or death in a crash.
- Always make sure that the safety be lt re­
tr actor is locked when installing a child
safety seat . An un locked safety be lt retrac­
tor cannot hold the ch ild safety seat in p lace
during normal driving or in a crash.
- Always buckle the child safety seat fi rm ly in
p lace even if a child is not sitting in it. A
loose child safety seat can fly a round during
a sudden stop or in a c rash. .,.
143

conditions regar dless of your speed to
reduce the risk of an accident.
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine.
When a vehicle w ith a conventional energy sys ­
tem is not dr iven for a long time, the battery is
d rained by equ ipme nt (for example the immobi l­
iz er) . In certain circumstances, there could may
not be eno ugh energy to start the engi ne.
Your veh icle is equipped with an inte lligent ene r­
gy managemen t system for d istr ibut ing electrici­
ty . This significant ly imp roves the starting ab ility
and inc reases t he battery life.
The energy management system Is made up of
batt ery diagno sis, idling curr ent management
and dynami c en ergy managemen t.
B attery diagnosis
The battery diagnosis determines the battery
charge level. The senso rs determ ine the battery
voltage, t he battery cur rent, and the battery
temperature. The cu rrent charge level a nd the
pe rformance of the bat tery are dete rm ined based
on this .
Idling current management
The idling cu rrent management dec reases the
energy used wh ile parked . With the eng ine
sw itched off, it manages the energy dist ribution
t o the different elect rical componen ts. Date from
battery d iagnosis is taken into account for this.
D epending on the battery cha rge level, e lectr ica l
equ ipment is swi tched off one item after the oth­
e r, to p revent the ba tte ry from d raining and to
r etain the s tarting ab ility.
Dynamic energy management
Wh ile driving, dynamic energy management dis­
tr ib utes the approp riate amount of energy to the
e lectr ica l equipment. It controls the battery
Intellig ent Technology
charge level so that more energy is not used then
is being generated in order to maintain an opti ­
mal battery charge level.
(D Tips
- Energy management cannot overcome the
laws of physics . Note that the charge level
and length o f the battery life are limited.
- When the sta rting ability is endangered, the
(•) indicator lig ht turns on
¢page 15.
What you should know
Maintaining the starting ability is the highest
priority.
A lo t of st ress is p laced on t he b attery when dr iv­
ing shor t distances, in traff ic, and at cold t imes
of the year . A lot of energy is used but litt le is
generated. It is also critical when the engine is
not running but e lectr ica l equipment is sw itched
on. In th is case, energy is used but none is gener­
ated.
In situations like this, energy management wi ll
active ly regulated the distr ibut ion of energy.
Long periods without us e
If you do not drive your vehicle for sever al days o r
weeks, electrical equ ipment is gradua lly scale d
back or sw itched off . This reduces energy use and
ensures the vehicle will be ab le to start after long
per iods of time . Some conven ience functions,
such as interior lig hting or power seat ad just­
ment, may not be ava ilable under certain circum­
stances. These conven ience functions wi ll be
available again once you sw itch t he ignition on
and sta rt the eng ine.
With the engine switched off
The battery w ill dra in if you use Infotainment
funct ions such as listening to the radio while the
engi ne is switched off .
The vehicle's ab ility to start may be impa ired by
the energy use, a message will appear in the In­
fota inment system display .
The message indicates that the system wi ll
switch off automatically soon. If you would like
lill'
157

Driving and th e en vironm ent
A WARNING
-The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
- Never touch the exha ust tail pipes once they
have become hot . This could result in burns.
- Do no t park or operate the vehi cle in areas
where the hot exha ust system may come in
contact with dry grass, br ush, fue l spill or
other mater ial which can cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust mani­
fold, exhaust p ipes, catalytic converter or
heat sh ields. During dr iv ing, the substance
used for undercoating could ove rheat and
ca use a fire .
(D Note
-Be aware that just one tank filling with
leaded fuel will a lready ser iously degrade
the performance of the catalytic converter .
- Do not exceed the correct eng ine oi l level
¢ page 181.
-Do not drive until the fuel tank becomes
complete ly empty. The engine cou ld mis­
fire. Unburned fuel could also get into the
exhaust system and this could cause t he
catalytic converte r to overheat.
- Do not turn off the ignition whi le the vehicle
i s mov ing.
- Do not continue to operate your veh icle un­
der these cond itions, as otherwise fue l can
r each the catalytic converte r. This cou ld re­
su lt in ove rheating of t he converte r, req uir ­
i ng its re placement.
- T o assure efficient operation of the Emis­
s ion Control System:
- Have your ve hicle maintained properly and
in accordance with the se rvice recommen ­
dations in your Wa rranty
& Maintenance
book let .
- Lack of proper maintenance as well as im­
proper use of the vehicle will impair the
function of the em ission cont rol system
and co uld lead to damage.
160
-
® For the sake of the environment
Even when the Emiss ion Control System is op­
e rating properly, the exhaust gas can have a
su lfu r-li ke exhaust gas sme ll under some op­
erating states. T his depends on the sulfur
content of the fuel being used. Us ing a d iffer­
ent brand of fuel may help, or fi lling the tank
with lead-free super g rade gasoline.
Shutting down vehicle
If you would like your vehicle to remain inopera­
tive for a longer pe riod of time, contact an Audi
o r othe r spec ia liz ed dealer. They ca n adv ise you
o n necessa ry p recautions e.g. corros io n preven­
tion, m aintenance and storage . Pay attention to
additional in formation concer ning the battery .
Refer to¢
page 187 .
Economical and environ­
mentally-friendly driving
General
Your personal style of driving will determine the
economy of your vehicle, a s well as exhau st and
noise levels .
Fu el economy, env ironmenta l impact, and wear
o n your e ngine, brakes and tires large ly depend
o n t hree fa ctors:
- your personal d riving style
- operat ing cond itions
- technical limitat ions
If you anticipate what you need to do next and
drive economically, you can easily cut your f uel
consumption by 10-lS percent. Th is sect ion wi ll
give you some tips on how you can help the envi­
ronment and your pocketbook .
{l) Tips
The consumption estimates as published by
ENVIRONMENTAL PROTECTIO N AGENCY
(EPA) and T ransport Canada may not corre­
spond to your actual consump tion on the
r oad, which wi ll vary depending upon vehicle
l oad and speed, road a nd wea ther conditions,
tri p l engt h, etc.

Driving and th e en vironm ent
- Do not alter or remove any component of
the Emission Control System unless ap­ proved by the manufacturer.
- Do not alter or remove any device, such as
heat shie lds, switches, ignition wires,
valves, which are designed to protect your
vehicle's Em ission Control System and other
i mportant vehicle components.
Fewer short trips
Fuel consumption will always be relatively high
on shor t trips.
... Try to avoid driving short distances with a cold
engine.
The engine and catalyt ic converter have to reach
their optimal
ope rating temperature to reduce
fue l cons umption and nox ious emissions effec­
tively .
J ust after starting, a co ld eng ine in a m id -s ize ca r
only achieves a f uel economy of 6-8 miles p er
ga llon (30 -40 l/100 km). After about a half a
mile ; fu e l economy cl imbs to 12 mpg (20 l/100
km). After about
2.5 miles (4 km), the engine is
at its prope r operating temperature and fuel
economy has reached a normal level. So you can
see that you sho uld avoid short t rips whenever
possible.
The
outsid e temperature is also critical in this re ­
gard . Your car consumes more fuel in the w in ter
than in the summe r.
Driving offroad
General information
When driving offroad, the f unctions for the elec­
tron ic stabili zation control (ESC) are expanded.
ESC offroad mode can be activated in dr iving sit­
uations in which a whee l lock o r a d ifferent ial
lock fu nction is needed
r=.> page 152.
However, your Audi is not an offroad vehicle.
Never drive the vehicl e in terra in which is not
suitabl e for the vehicle, or which exceeds your
driving skills. Never take any unnecessary ri sks!
162
After driving offroad
- After driving off road, remove branche s and
other deb ris from the rad iator g rille, under ­
body, and w heels . Look especially fo r objects
(stones) that have been caught in the tire
tread.
- Clean the body and the ve hicle unde rbody and
i nspect the ve hicle for possible damages.
- Clean off the dirty windows, headlights, tail
lights and t he license plate.
- Per form a brake test (especia lly after d riving
throug h water) .
A WARNING
-Be especially aware and attentive when d riv ­
ing under diff icu lt cond itions. Damages to
the vehicle and injur ies may occur when
driving at an excess ively high speed o r with
incor rect d riving maneuvers .
- Always ad just yo ur speed and handling to
the roads, terra in, traffic and weathe r con ­
d itions . D rive especially s low if offroad wi th
low visibility.
- Please note that t he wheels can sp in mo re
and the vehicle can swerve when in ESC off­
road mode , espe cially when the road is slip­
pe ry o r has loose surfa ce m aterial.
- Driv ing stability is reduce d in the ESC
Off­
road mode.
@ For the sake of the environment
Avo id harm ing t he env ironmen t and take na­
ture into co nsideration .
(D Tips
Only drive where it is allowed and always stay
on the provided roads and paths .
Driving information
There is only one right way to drive in difficult
conditions: slowly and with caution!
Observe the following when driving on unpaved
r oads :
Ill-

Care and cleaning
Care and cleaning
General information
Regular, prope r care helps to maintain your vehi ­
cle's value.
It can a lso be a requirement when
submitting war ranty claims for cor rosion damage
and pa int defects on the body.
The necessary care prod ucts can be obtained
from your authorized Audi dealer o r authorized
Aud i Service Facility. Read and follow the instruc­
tions for use on the packaging.
A WARNING
- Using cleaning and care products incorrectly
can be dangero us to your hea lth .
- Always store clean ing and care products out
of reach of children to reduce the r isk of po i­
so ning .
@ For the sake of the environment
- Preferab ly use environmentally-friendly
products when buying cleaning agents.
- Do not dispose of leftove r clean ing and care
products wit h household t rash.
Car washes
The longer that deposits remain on the veh icle,
the more the surface may be damaged. High
temperatures such as those caused by sunlight
increase the damaging effect.
Before washing, rinse
off heavy deposits with
p lenty of water.
Stubborn deposits s uch as bird droppings or tree
sap are best removed with plenty of water and a mic rofibe r cloth.
A lso, wash the underside of yo ur vehicle once
road sa lt stops being used for the season .
Pressure washers
When washing your veh icles with a pressure
washer, always follow t he ope ra ti ng inst ructions
p rovided w ith the pressure washer. This is espe­
cially important in regard to the pressure and
spraying distance . Do not a im the spray directly
at seals on side windows, doors, the hood, the
168
rear lid or the sunroo f* or at tires rubber hoses I I
insulating material, sensors* or camera lenses* .
Keep a distance of at least 16 inches (40 cm) .
Do no t remove snow and ice with a pressure
washe r.
Neve r use rota ry no zzles or high pressure noz­
z les.
The water temperatu re must not be above 140 °F
(60 °().
Automatic car washes
Spray
off the vehicle before washing.
Make su re that the windows and roof * are closed
and t he windshie ld wipers are
off . Follow instruc ­
tions from the car wash operato r, especially if
there are accessories attached to your vehicle.
If possible, use car washes that do not have
brushes.
Washing
by hand
Clean the vehicl e starting from the top and work­
in g down using a soft sponge or cleaning br ush .
Use solvent-free cleaning products.
Washing vehicles with matte finish paint
by
hand
To avo id damaging the paint w hen washing, fi rst
remove dust and large pa rt icl es from your vehi­
cle. Insects, grease spots and fingerprints are
best removed with a special cleane r for matte
finish paint .
Apply the p rodu ct using a microfiber cloth. To
avoid damaging the paint surface, do not use too
much pressure.
Rinse the vehicle thorough ly w ith wate r. Then
clean using a neutra l shampoo and a soft m icr o­
fiber cloth .
R inse the ve hicle thorough ly again a nd let it air
dry. Remove any water residue using a leather
cloth.
A WARNING
- Only wash the vehicle when the ignition is
off and follow the instr uctions from the car
-

Fuel and Refueling
while filling and can ignite fuel vapors
causing a fire.
- Always p lace a portable fuel container on
the ground before filling.
- Always keep the filler nozzle completely
inside the portable container before and
during filling.
- If filling a portable container made of
metal, the filler nozzle must a lways be in
contact with the container . This will help
prevent static electricity from discharging
and cause a fire .
- Never spill fuel inside the vehicle or lug­
gage compartment. Fuel vapors are highly
flammable .
- Always observe local and state/provincial
laws regarding t he use, storage and trans­
portation of fuel containers .
- Make certa in the fuel container meets in­
dustry standards (ANSI/ ASTM
F852-86) .
CD Note
If any fuel has spilled onto the car, it should
be removed immediately to prevent damage
to the paint.
@ For the sake of the environment
As soon as the correctly operated nozz le
switches off automatically for the first time ,
the tank is full. Do not try to add more fuel
because fuel may spill out . In addition, the
expansion space in the fuel tank will be filled -
causing the fuel to overflow when it becomes
wa rm and pollute the environment.
(0 Tips
- Running your engine while refueling may
cause vapors to escape or even cause fuel to
sp ill out of the tank. This would then shut
off the fuel nozzle before the tank is full.
- Do not refuel your vehicle with the ignition
turned on. The fuel gauge may otherwise
not indicate the correct fue l level after refu­
eling.
- The fuel filler flap of your vehicle is not
l ocked when you lock the veh icle from the
inside.
176
Fuel filler door emergency release
I f the cen tral locking system is faulty, the fuel
filler door can be unlocked manually .
Fig. 146 Side tr im pane l in t he lug gage compar tmen t:
emergency release mechanism
The emergency release mechanism is located be­
hind the right side trim panel in the luggage
compartment .
.,. Loosen the loop from the retainer and then pull
on the loop carefully
<=> (D . The fuel filler door is
released .
.,. To open the fuel filler door, press on the left
side
Q page 175, fig. 144 .
CD Note
Only pull on the loop until you feel res istance .
You will not hea r it re lease. Othe rw ise you
could damage the emergency release mecha­
nism.

Checking and Filling
-Keep children away from the engine com­
partment.
- Never spill fluids on hot engine compo­
nents. They can cause a fire.
- Never touch the radiator fan. The auxiliary
electric fan is temperature controlled and
can switch on suddenly.
- Never open the coolant reservoir cap when
the engine is still warm. The coolant system
is pressurized and hot coolant could spray
out.
- Protect your face, hands and arm from steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir .
- Do not remove the engine cover under any
circumstances. This increases the risk of
burns .
- If work on the fuel system or the electrical
system is necessary:
-Always disconnect the battery.
- Never smoke or work near heaters or open
flames. Fluids in the engine compartment
could start a fire.
- Keep an approved fire extinguisher imme­
diately available.
- To avoid electrical shock and personal injury
while the engine is running or being started,
never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair with
the engine running:
- First, fully apply the parking brake, move
selector lever of automatic transmission
to "P" (Park).
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get-
178
ting caught in the radiator fan, V-belts or
other moving parts, or from contacting
hot parts. Tie back hair before starting,
and do not wear clothing that will hang or
droop into the engine.
- Minimize exposure to emission and chemi­
cal hazards
c::> & .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm .
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
([) Note
When adding fluids, always make sure that
they are poured into the proper container or
filler opening, otherwise serious damage to
vehicle systems will occur.
@ For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If you
see spots from oil or other vehicle fluids, have
your vehicle inspected by an authorized Audi dealer .

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 coo l
down.
- Protect you r face, hands and arms from
escaping fluid and steam by cover ing the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in a
counter-clockwise d irection while applying
light, downward p ressure 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 certa in cond i­
tions, the ethylene glycol in eng ine cool­
ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its orig inal container and well out
of the reach of children.
- If you dra in the coolant, it must be caught
and safely stored in a proper conta iner
clearly marked "poison".
- Do not add coolant if the expansion tank is
empty. Air cou ld enter the cooling system
and damage the eng ine. If this is the case,
do not continue driving . Seek professional
ass istance.
- Coolant pollutes the env ironment and could
cause an eng ine fire. Excess coolant will be
fo rced o ut through the pressure relief valve
i n the cap when the e ng ine be comes hot.
- If, in an emergency, only wate r can be add­
ed, the co rrect r atio betwee n wate r and an­
tifree ze
Q page 183 must be res to red as
soon as possib le.
{® For the sake of the environment
Dra ined coolant sho uld not be reused. Always
disp ose of used coolant while obse rving all
....
"' environment al regulat ions. ci ::, co .... N -
Ch eck ing and Filling
Rad iator fan
The radiator fan switches on automatically by it­
self .
The radiator fan is driven by the engine via the V­
belt. The viscous clutch regulates th e speed of
the fan accord ing to the temperature of the cool­
ant .
An auxiliary e lectr ic radiator fan* switches on and
off depending on coo lant temperature and other
vehicle operating conditions.
After you switch the engine
off, the auxiliary fan
can continue running for up to 10 m inutes -even
with the ignition
off. It can even switch on aga in
later by itself
Q .& , if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en­
gine compartment, or
- the engine compartment heats up beca use the
veh icle is parked in intense sunlight.
A WARNING
- To reduce the r isk of persona l injury neve r
touch the radia to r fan .
- The auxiliary e lectr ic fan is temperature
controlled and can switch on s uddenly even
when the engine is not ru nning .
- The a uxiliary radiator fan sw itches on auto­
mat ically when the eng ine coolant reaches a
certa in temperature a nd will continue to run
until the coolant temperature d rops.
185

@ For the sake of the environment
Because of the problem of proper disposal of
brake fluid as we ll as the special toots re­
quired and the necessary expertise, we rec­
ommend that you have the brake fluid
changed by your authorized Audi dealer .
Battery
General information
Under normal operating conditions, the battery
in your Audi does not need any maintenance.
With
high outside temperatures or long daily
drives we recommend that you have the electro­
lyte level checked by an authorized Audi dealer or
qualified workshop. The electrolyte level should
also be checked each time the battery is charged
c> page 189.
Have the battery checked when you take your ve­
hicle in for serv ice. You are well advised to re­
place a battery t hat is older than 5 years.
With certain types of airbag deployment, the battery is disconnected from the vehicle electri­
cal system for safety reasons
c> & in Repair, care
and disposal of the airbags on page 125 .
Disconnecting the battery terminals
Some vehicle functions (power window regula­
tors, for example) are lost if the battery termi­ nals are disconnected. These functions have to be
relearned after the battery terminals are con­
nected again. To prevent th is, the battery should
only be disconnected from the vehicle e lectr ica l
system when abso lutely necessary for repairs.
Vehicles not driven for long periods
If you do not drive your vehicle over a period of
several days or weeks, electrical components are
gradually cut back or sw itched off. This reduces
energy consumption and maintains starting ca­
pability over a longer pe riod
c> page 157.
Some of the conven ience functions may not oper­
ate, such as the interior lights or the power seat
adjustment. The convenience functions will be
available again when you turn on the ignition and
start the engine.
Checking and Filling
Winter operation
During the winter months, battery capacity tends
to decrease as temperatures drop . This is be­
cause more power is also consumed while start­
ing, and the headlights, rear window defogger,
etc., are used more often.
Avo id unnecessary power consumption, particu­
larly in city traffic or when traveling only short
distances . Let your authorized Audi dealer check
the capacity of the vehicle battery before winter
sets in
c> page 189. A well charged battery will
not only prevent starting problems when the
weather is cold, but will also last longer .
(D Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the ve­
hicle battery should be removed and stored
where it w ill not freeze. This will prevent it
from be ing damaged and having to be re­
placed.
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the engine compart­
ment . Before you check anything in the engine
compartment ,
read and heed all WARNINGS
c>,& ,
Always heed the safety warnings, when working
on the vehicle battery or the veh icle electrical
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.
A
Battery acid contains sulfuric acid. Al-
ways wear gloves and eye protection .
187