Page 225 of 302

"' N
a:: I.J ""'. rl I.O
"' rl
"' rl
(D Note
- Do not disconnect the ve hicle battery
when the ignition is on or when the en
gine is running, otherwise, you will dam
age electronic components in the electri
ca l system .
- If your vehicle is going to stand for a
l ong period of time without being driven,
protect the battery from "freezing", oth
erwise it w ill be damaged and w ill then
have to be replaced .
- When opening the doors, the windows
l ower app rox imately 10 mm automati
cally. This f unction is not available when
t h e battery is disconnec ted, wh ic h
means there is a ris k t hat the door se al
or the w indow co uld be damaged .
Battery charging
Starting the engine requires a well charged bat tery.
F ig. 1 93 En gine co mpartme nt: c onnectors for a charg
er a nd jum p sta rt cable s
Always read and heed all WARNINGS below
¢ .&. and
¢.&. in Working an the battery on
page 2 22.
"'Switch off the ignit ion and all electrica l con
s u mers .
"' Make sure the area is well vent ilated when
you charge the battery.
"' Open the engine hood
c::> page 211 .
"'Open the red cover o n the posit ive pole
<=> fig . 193.
"' Connect the charger connectors accord ing to
the instruc tions to the
jump start bolts .
(Bolts under the red cover = "positive", Bolts
with hex head = "nega tiv e").
Checkin g and fillin g 223
"'On ly now plug the mains lead for the cha rg
i ng eq uipment into the wa ll outlet and turn
it on
c::> ,&. .
"'Make sure the charging rate is not o ver
30 amps /14.8 Volt .
"'When the battery is fully c harged : Turn the
charg ing equipment off and remove the
mains lead from the wa ll out let .
"' Now remove the clamps fo r the cha rg ing
equ ipme nt.
"' Close the red cover on the positive pole .
"' Close the hood ¢
page 212 .
A d ischa rged batte ry can freeze at tempe ra
tures of only 3 2 F
0 (0 °C). Allow a fro zen bat
te ry to thaw completely before attemp ting to
c h arge it
c::> & . However, we recommend not
using a thawed battery again because the bat
tery casing can be cracked due to ice forma
tion and can leak battery ac id.
Battery charging (Maximum charging rate
of 30 amps /14.8 Volt )
When cha rging at
low vo ltages (e .g. with a
trickle charger), the batte ry cables do not
have to be disconnected f irst . The battery
caps should
not be ope ned when charg ing a
batte ry .
It is not necessary to remove the battery from
the luggage compartment, and it is a lso not
necessary to d iscon nect the cab les .
Fa st charging the battery (cha rging rate
above 14.8 Volts)
Fo r technical reasons do not use a battery
c h a rger that uses voltage g reater than 14 .8
Volts to charge yo ur vehicle's battery .
A WARNING
C harging a battery can be dangero us.
- Always follow t he ope rati ng inst ructions
provi ded by the battery cha rg er ma nu
f ac turer when chargi ng you r battery.
- N ever cha rge a fro zen batte ry.
It may ex
p lode because of gas trapped in the ice .
A llow a froz en ba tte ry to thaw out first.
- D o not r euse ba tte ries wh ich were fro
z en. The bat tery housi ng may
h ave
Page 226 of 302

224 Check ing and filling
cracked an d weake ned when the battery
froze.
- Charge the battery in a we ll ventilated
area. Keep away from open flame or elec
trical spark . Do not smoke. Hydrogen gas
generated by the battery is exp losive.
- 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 technician w ith the proper equip
ment .
- Battery acid that may spill d uring charg
ing should be washed off w it h a solution
of warm water and ba kin g soda to neu
t rali ze the acid.
~ Note
Never use a fast charger as a booster to
start the engine. This will seriously dam
age sensitive ele ct ronic components, such
as co ntrol units, relays, rad io, etc. , a s we ll
as th e batte ry charge r.
Battery replacement
The new battery must have the same specifi
cations and dimensions as the original equip
ment battery.
I ntell igent energy manag ement in your veh i
cle is respo nsible for d ist ribu ting the e lectr i
cal energy throughou t you r vehi cle
~ page 193. The inte lligen t energy m anage
ment system w ill keep the engine batte ry
charged better than vehicles w it h out t his sys
tem . T o make sure the additional e lectrical en
ergy is available once again after you have
changed t he battery, we recommend that you
install batteries of the same type and manu
facture only (the same as those ins talled at
the t ime your vehicle was delivered). Specifi
cations a re listed o n the battery hous ing. You r
author ized de aler m ust code the b attery in
the ene rgy management system to enable yo u
to use the energy managemen t fu nctions co r
rectly after replac ing 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 .
@ For the sake of the environment
B ecause o f the p rob lem of p roper disposal
of a battery, we recommen d your author
i zed Audi dea ler chan ge the battery for
you . Batteries contain sul fur ic acid and
l ead and must a lways be disposed of p rop
e rly in compliance with all environmental
regulations . Disposing of vehicle batter ies
i mprope rly is very dange rous to th e envi
r o nment.
Windshield/headlight*
washer container
Fi g. 19 4 En gin e co mpa rt m en t: cove r on t he w inds hield
a n d head ligh t* was her fl ui d reservo ir
T he washer fluid co ntai ner is mar ked w it h t he
symbol$ on its cap
~ fig. 194, ~page 213,
fig . 188.
.,. Before you chec k any thing in the engine
comp artment,
always read and heed all
WARNINGS ~ A in Working in the engine
compartment on page 211 .
.,. Lift the fi ller cap tongue to add washer flu -
id. You can f ill the container to the top. ..,.
Page 227 of 302
M N
0:: <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
~ Press the cap back onto the filler neck after
filling the container .
You can find the reservoir
c ap acity in the tab le
in
c::> page 280.
C lean water should be used when filling up. If
possible, use soft water to prevent scal ing on
washer jets. A lways add a glass cleane r solu
tion (with frost protection in the winter) .
(D Note
Do not mix engine coolant antifreeze or
any other add itives to fi ll up the wind
shie ld washer reservoir.
Checkin g and fillin g 225
•
•
Page 228 of 302

226 Tires a nd whee ls
Tires and wheels
Tires
General notes
Tires may be the least appreci
ated and most abused parts of
a motor vehicle.
Ti res may be the least appreci
ated and most abused parts of
a motor vehicle. Tires are, how
ever, one of the most important
parts of a vehicle, partic ularly
considering the comparatively
small patch of r ubber on each
tire that assures that all-impor
tant contact between you, your
vehicle and the road.
Maintaining the co rrect tire
p ressure, making sure that your
vehicle and its tires do not have
to carry more we ight than they
can safe ly handle, avoiding
damage from road hazards and
regular ly inspecting tires for
damage including cuts, s lashes
irregular wear and overall con
d ition are the most important
things that you can do to help avoid sudden tire fai lure inc lud
ing tread separation and blow
outs.
Avoiding damage
If you have to drive over a curb
or similar obstacle, drive very
slowly and as close as possible
at a right angle to the curb.
Always keep chemicals includ
ing grease, o il, gasoline and
brake fluid off the tires.
Inspect the tires regularly for
damage (cuts, c racks or blis
ters, etc.). Remove any foreign
bodies embedded in the treads.
Storing tires
Mark tires when you remove
them to indicate the direction
of rotation . This ensures you to
be able to mount them correct
ly when you reinstall them .
When removed , the wheels or
tires should be stored in a cool,
dry and preferably dark p lace.
Store tires in a vertical position if they are not mounte d on
r ims, in a horizontal position if
they are mounted on rims.
New tires
New tires have to be broken in
¢ &.
The tread depth of new tires
may vary , according to the type .,.
Page 229 of 302

Tires and wheels 22 7
and make of tire and the tread -New tires tend to be slip-•
pattern. pery and must be broken in. • '
Hidden damage To reduce the risk of losing
Damage to tires and rims is of- control, a collision and seri-
ous personal injuries, drive
ten not readily visible. If you with special care for the
notice unusual vibration or the first 350 miles (560 km).
vehicle pulls to one side, this
-Driving with worn or dam-
may indicate that one of the
aged tires can lead to loss of
tires has been damaged. The
control, sudden tire failure,
tires must be checked immedi-
ately by an authorized Audi including a blowout and
sudden deflation, crashes
dealer or qualified workshop.
and serious personal inju-
Unidirectional tires ries. Have worn or damaged
A unidirectional tire can be tires replaced immediately.
identified by arrows on the -Tires age even if they are
sidewall, that point in the di rec- not being used and can fail
tion the tire is designed to ro- suddenly, especially at high
tate. You must follow the speci- speeds. Tires that are more
fied direction of rotation. This is than 6 years old can only be
necessary so that these tires used in an emergency and
can develop their optimum then with special care and
characteristics regarding grip, at low speed.
road noise, wear and hydro- -Never mount used tires on
planing resistance. For more in- your vehicle if you are not
formation
¢ page 268. sure of their "previous histo-
ry." Old used tires may have
A WARNING
been damaged even though -
New tires or tires that are the damage cannot be seen
old, worn or damaged cannot that can lead to sudden tire
provide maximum control failure and loss of vehicle
M N and braking ability. 0:: control. <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Page 230 of 302

228 Tires and wheels
-If you notice unusual vibra
tion or if the vehicle pulls to
one side when driving, al
ways stop as soon as it is
safe to do so and check the
wheels and tires for dam
age.
0 Note
-Please note that summer and winter tires are de
signed for the conditions
that are typical in those sea
sons. Audi recommends us
ing winter tires during the
winter months. Low tem peratures significantly de
crease the elasticity of
summer tires, which affects
traction and braking ability. If summer tires are used
in
very cold temperatures, cracks can form on the tread
bars, resulting in perma
nent tire damage that can
cause loud driving noise and
unbalanced tires. Audi is not
responsible for this type of
damage.
-Burnished, polished or chromed rims must not be used in winter road condi
tions. The surface of the
rims does not have suffi
cient corrosion protection
for this and could be perma
nently damaged by road salt
or similar substances.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto matic transmission, power
steering, power brakes, power
windows, power seats , radio,
and heater, to the extent that
these items are available as fac
tory-installed equipment (whether installed or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of 55 or lower indi
cate a low sidewall for im
proved steering response and
better overall handling on dry
pavement.
...
Page 231 of 302

Bead
means the part of the tire that
is made of steel wires, wrapped
or reinforced by ply cords and
that is shaped to fit the rim .
Bead separation
means a breakdown of the bond
between components in the
bead.
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom
mended by the vehicle manu
facturer for a tire of a designat
ed size that has not been driven
for more than a couple of miles (kilometers) at low speeds in
the three hour period before
the tire pressure is measured or
adjusted.
Curb weight
means the weight of a motor
vehicle with standard equip
ment including the maximum
capacity of fuel, oil, and cool
ant, air conditioning and addi
tional weight of optional equip
ment.
Tires and wheels 229
Extra load tire
means a tire design to operate
at higher loads and at higher inflation pressures than the
corresponding standard tire. Extra load tires may be identi
fied as "XL", "xl", "EXTRA
LOAD", or "RF" on the sidewall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capaci
ty of a single axle system,
measured at the tire-ground in
terfaces.
Gross Vehicle Weight Rating ("GVWR")
means the maximum total
loaded weight of the vehicle.
Groove
means the space between two
adjacent tread ribs.
Load rating (code)
means the maximum load that
a tire is rated to carry for a giv
en inflation pressure. You may
not find this information on all
tires because it is not required by law.
•
•
'
Page 232 of 302

230 Tires a nd whee ls
Ma ximum load rating
means the load rating for a tire
at the maximum permissible in
flation pressure for that tire.
Maximum loaded vehicle
weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible)
inflation pressure
means the maximum cold infla
tion pressure to which a tire
may be inflated. Also called
"maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 k ilograms)
times the number of occupants seated in the vehicle up to the
total seat ing capac ity of your
vehicle.
Occupant distribution
means distribution of occu
pants in a vehicle .
Outer diameter
means the overall diameter of
an inflated new tire.
Overall width
means the linear distance be
tween the ex teriors of the side
walls of an inflated tire, includ
ing elevations due to labeling,
decorations, or protect ive
bands or ribs .
Ply
means a layer of rubber -coated
parallel cords .
Production options weight
means the comb ined we ight of
those installed regular produc
tion op tions weighing over 5
lbs . (2. 3 kg) in excess of those
standard items which they re
place, no t prev iously consid
ered in curb weight or accessory
weight , incl uding heavy duty
brakes, ride leve lers, roof rac k,
heavy duty bat tery, and spec ial
trim.
Radial ply tire
means a pneumatic tire in
wh ich the p ly c ords that extend
t o the beads are laid at sub
stantially 90 degrees to the
centerline of the t read .