2 78 Check ing and filling
Al ways read and h eed all WARNING S below
¢ A and ¢ A in Working on the bottery on
page 276.
.,. Turn off the ign it ion and a ll electri cal con
sumers .
.,. Make sure the area is well venti lated when
yo u charge the battery.
.,. Open the hood
¢ page 264.
.,. Open the red cover on the posit ive pole
¢ fig . 249 .
.,. Co nnect the charger connectors accord ing
to the instruct ions to the
jump start b olt s.
(Bolts under the red cover= "positive", Bolts
with hex head= "negative") .
.,. Only now plug the mains lead for the charg
ing equipment into the wall outlet and turn
it on ¢.&_ .
.,. Ma ke s ure the charging ra te i s n ot o ver
30 amp s/14. 8 Volt.
.,. When the battery is fully charged: Turn the
charging equ ipment off and remove the
mains lead from the wall outlet .
.,. Now remove the clamps for the charging
equipment.
.,. Close the red cove r o n the pos it ive pole.
.,. Close the hood
¢ page 264.
A discharged batte ry can fre eze at tempera
tures of on ly O
0C. Allow a frozen batte ry to
thaw comp lete ly before at tempting to charge
it ¢& . However, we recommend not using a
thawed battery again because the battery cas
ing can be cracked due to ice formation and
can leak battery acid .
Battery charging (Ma ximum charging rate
of 30 amp s/14 .8 Volt)
When charging at low voltages (e.g . w ith a
tri ckle ch arger ), the battery cables do not
have to be d isconnected first. The battery
caps should
not be opened when charging a
battery .
It is not necessary to remove the battery from
the luggage compartment.
Fast chargin g the battery (ch arging rate
ab ove 14.8 V olt s)
For technical reasons do not use a battery
charger that uses voltage greater than 14.8
Volts to charge your vehicle's battery.
A WARNING
= -
Charging a battery can be dangerous .
-Always follow the operating instructions
provided by the battery charger manu
facturer when charg ing your battery .
- Never charge a frozen battery. It may ex
plode because of gas trapped in the ice.
Allow a frozen battery to thaw out f irst .
- Do not reuse batteries wh ich were fro
zen. The battery housing may have
cracked and weakened when the battery
froze.
- Charge the battery in a well ventilated
area. Keep away from open flame or elec
tr ica l spark. Do not smoke. Hydrogen gas
generated by the battery is explos ive .
- To reduce the danger of explosion, never
connect or d isconnect charger cab les
while the charger is ope rat ing .
- Fast cha rging a battery is dangerous and
should only be attempted by a compe
tent techn ic ian with the proper equip
ment .
- Battery acid that may sp ill dur ing cha rg
ing should be washe d off wi th a solut ion
of wa rm water and baking soda to neu
tralize the ac id.
(D Note
Neve r use a fast charger as a booster to
start the eng ine. Th is w ill seriously dam
age sensit ive e lectronic components, such
as contro l units, re lays, radio, etc., as well
as the battery charger.
Battery replacement
The new battery must have th e sam e specifi
cations and dim ensions as the original equip
ment battery.
Intell igent energy management in your vehi
cle is respons ible for d istr ibuting the e lectr i
cal energy throughout your vehicle
c::> page 231. The intel ligent e nergy ma nage
men t system w ill keep the eng ine ba tte ry
ch arged be tte r th en vehicles w ithout t his sys
tem . To make sure the additional e lectrica l en
e rgy is available once again after you have
changed the battery, we recommend that you install batteries of the same type and man u
facture only (the same as those installed at
the time your vehicle was delivered). Specifi
cations a re listed on the battery hous ing . Your
author ized dealer must code the battery in
the energy manageme nt system to enable yo u
to use the energy managemen t fu nctions co r
rectly after rep lac ing the b attery .
If it is not poss ible to use a battery of this
type, the new battery must have the same ca p aci ty, voltage
(12 volts) , a mpe rage , con
s truc tion and pl ug sea ling.
W hen insta lli ng the battery, make sure the ig
ni tion and all e lectr ical c ons umers a re turned
off.
CD Note
Ma ke s ure the venti lation hose on the s ide
of the bat tery is connected, ot he rwise
fumes or ba ttery a cid c an leak out.
@, For the sake of the environment
Because of the probl em of proper d isposa l
of a batte ry, we recommend your autho r
i z e d Au di d ealer change the batt ery f or
you. Batter ies co ntain s ulfu ric ac id and
lead and m ust always be dis posed of prop
erly i n complia nce w ith all environmenta l
reg ulations. D isposin g of vehicle batteries
improper ly is very dangerous to the envi
ronment.
Checkin g and fillin g 2 79
Windshield/headlight
washer container
Fig. 2 50 En gin e compart ment: cover on t he w inds hield
a n d head lig ht* was her fl ui d reservo ir
The washer fluid conta iner is marked w ith the
symbol Won its cap
c::> fig . 250, c::> page 266,
fig . 243 .
.. Before yo u check anything in the engine
compartment,
always read and heed all
WARNINGS c::> &. in Working in the engine
compartment on page 264 .
.. Lift t he fi ller cap tongue to add washer flu
id. You can fi ll the containe r to t he top .
.,. Press the cap back o nto the fi lle r ne ck afte r
f illing the container.
You can find the reservo ir
capacity in t he table
in
c::> page 32 2.
Clean water should be used when filling up . If
poss ible , use soft water to prevent scaling on
the washer jets. A lways add a glass cleane r
solution (with frost pro te ction in t he winter).
CD Note
Do not mix engine coo lant antifreez e or
a ny other addit ives to f ill up t he win d
sh ield washer rese rvo ir.
•
•
28 0 T ire s and wheel s
Tires and wheels
Tires
General notes
Tires may be the least appreciated and most
abused parts of a motor vehicle .
Tires may be the least appreciated and most
abused parts of a motor vehicle . Tires are,
however, one of the most important parts of a
vehicle, particularly considering the compara
tive ly small patch of rubber on each tire that
assures that all -impo rtant contact between
you, your vehicle and the road.
Maintaining the correct tire pressure, mak ing
sure that your vehicle and its tires do not have
to carry mo re weight than they can safe ly han
d le, avoiding damage from road hazards and
reg ularly inspecting t ires for damage includ
ing cuts, slashes irregu la r wear and ove rall
condition are the most important things that
you can do to he lp avoid sudden tire failure in
cluding tread separation and blowouts.
A voidin g damage
I f you have to drive over a curb or similar ob
stacle, drive very s low ly and as close as possi
b le at a right angle to the curb.
A lways keep chem ica ls includ ing grease, o il,
gasoline and b rake fluid off the ti res.
Inspect the t ires regularly for damage (cuts,
cracks or b listers, etc.). Remove any fo reign
bod ies embedded in the treads.
St oring tires
Mark tires when you remove them to indicate
the direction of rotation . Th is ensures you to
be ab le to mount them correctly when you re
install t hem.
When removed, the wheels or t ires should be
stored in a cool, dry and preferably dark place .
Store tires in a vertical pos ition if they are not
mounted on rims, in a horizontal pos it ion if
they are mounted on rims. New tire
s
New t ires have to be broken in¢&,. .
T he tread depth of new t ires may vary, accord
ing to the type a nd make of t ire and the tread
pa tte rn .
Hidden damage
Damage to tires and r ims is often not readily
vis ible . If you notice unusual v ibrat ion or the
vehicle p ulls to one side, th is may ind icate
that one of the t ires has been damaged . Th e
t ir es m ust be checked immed iate ly by an au
tho rized Aud i dea le r or q uali fied wor kshop.
Unidirectional t ires
A un idirectional tire can be identified by ar
rows on the sidewa ll, that po int in the direc
t ion the t ire is designed to rotate. You must
fol low the specified d irection of rotation . This
is necessary so that these tires can develop
their optimum characteristics regarding grip, road no ise, wear and hydrop laning resistance.
For more information ¢
page 308.
A WARNING
-New tires or tires that are old, worn or
damaged cannot provide maximum con
trol and braking ability .
-
-New tires tend to be slippery and must
be broken in . To reduce the risk of losing
control, a co llision and ser ious personal
in jur ies, d rive w ith special ca re fo r the
fi rst 350 m iles (560 km).
- Driving with worn or damaged tires can
lead to loss of control, sudden tire fail
ure, including a blowou t and sudden de
fl ation, c rashes and seriou s personal in
juries . Have wo rn or damaged t ires re
p laced immediate ly .
- T ires age even if they are not being used
and can fai l sudden ly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then w ith specia l care and at low
speed.
Tires an d wheel s 285
change. In the event of discrepancies, the tire
pressure label located on the driver's side 8-
p ill ar a lways takes precedence.
The table be low lists the recommended cold
tire inf lation pressures for the A udi model
I Model / Tire designation
covered by your Owner's Literature at the vehi
cle's capacity weight and the tire sizes instal
l ed on the respect ive models as orig inal
equipment, or as a factory option.
Tire pressure
Engine normal load condition full load condition
front rear front rear
I
PSI II kPA PSI kPA PSI j[ kPA PSI kPA
Q7:
3.0 liter
6-cy linder 2
55/5 5 Rl8 109H XL
All Sea son
265 /50 Rl9 ll0H XL
All Sea son
2 75/45 R20 ll0H XL
All S ea so n
275 /45 R20 110V XL
High Performance
295 /35 R21 10 7V XL
High Performance
35 240 35
35 240 35
35 240 35
35 240 35
36 250 35 240
44
300 49 340
240 44 300 49 340
240 44 300 49 340
•
240 44 300 49 340
I
240 44 300 49 340
XL= reinforced or extra load tire. It may als o appear as xl, EXTRA LOAD, or RF on the tire side
wall.
The correct tire pressure for the spare wheel i s
l ocated on a label on the driver's side 8-pilla r.
Because technical changes may be made to
vehicle equ ipment during the model year, al
ways compare the tire size designation on the
tire pressure label on your vehicle w ith the
tires on your vehicle. Ma ke sure that the tire
size information on the veh icle label is the
same as the s ize of the t ires on the vehicle.
This is especially important if the vehicle be l ongs to someone else or you bought the vehi
cle with different rims/tires or you bought the
vehicle as a previously owned vehicle.
Remember, your safety and that of your pas
sengers also depends on making sure that
l oad limits are not exceeded. Vehicle load in
cludes everybody and everything in and on the
vehicle. These load limits are technically refer red to as the vehicle's Gross Vehicle We ight
Rating ("GVWR") . The Gross Axle Weight Rat
i ng ("GAWR") is the maximum load that can
be appl ied at each of the veh icle's two axles.
The G ross Vehicle Weight Rating and the Gross Axle Weig
ht Rating are listed on the
safety compl iance sticker label located on the
drive r's side 8-pillar . The tire pressure labe l on
your A udi lists the maxim um combined
weight of all of the occ upants and luggage or
other cargo that t he vehicle can carry. Fo r the
location of the tire pressure label ¢
fig. 251.
A WARNING
Overloading a vehicle can cause loss of ve
h icle control, a crash or other accident, se
rious personal injury, and even death.
- Carrying more we ight than your veh icle
was des igned to carry will prevent the
veh icle from handling properly and in
crease the risk of a loss of vehicle con
trol.
- The brakes on a vehicle that has been overloaded may not be able to stop the
veh icle w ith in a safe distance.
- T ires on a vehicle that has been overload
ed can fail suddenly caus ing loss of con-
trol and a crash. ..,.
•
•
286 Tires and wheels
-Always make sure that the total load be
ing transported -including the weight of
a tra iler hitch and the tongue weight of a
loaded trailer -does not make the vehi
cle heavier than the vehicle's Gross Vehi
cle Weight Rating.
A WARNING
- Incorrect tire pressures and/or underin
flation can lead to a serious or fatal acci
dent .
- Incorrect tire pressures and/or underin
flation cause increased tire wear and can affect the handling of the vehicle.
- Incorrect tire pressures and/or underin
flation can also lead to sudden tire fail
ure, including a blowout and sudden de
flation, causing loss of vehicle control.
Checking tire pressure
The correct tire pressure for the tires original
ly installed on your vehicle is listed on the tire
pressure label loc;ated on driver's side 8-pil
lar.
The recommended tire pressures are on the
tire pressure label and in the table
¢ page 284, Cold tire inflation pressure.This
means that the pressure must be checked and
ad justed when the tire has not been driven for
more than a couple of mile s (kilometers) at
low speeds during the previous three hours.
Air in the tires expands when the tire heats up
as a result of internal friction as it flexes in
use . The tire pressure is higher when the tire
has warmed up than when it is "cold."
It is the inflation pressure in a "cold" tire that
counts. Therefore, you should never let air out
of a warm tire to match "Cold tire inflation
pressure" recommendations ¢
page 284. The
tires would then be underinflated and could
fail suddenly .
The tire pressure label on your Audi lists the
recommended cold tire inflat ion pressures at
maximum capacity for the new, original
equipment tires that were on your vehicle at the time it was manufactured.
For the loca
tion of the label
~page 284, fig. 251.
Most tires lose air naturally over time. They
can also lose some air if you drive over a pot
hole or hit a curb while parking.
It is usually
not possible to see whether the radial tires
used today are underinflated just by looking
at them.
Therefore, be sure to check tire pressures at
least once a month and always before going
on a long trip. Make sure to take the number
of peop le and the amount of luggage into ac
count when adjust ing tire pressure for a trip -
even one that you would not consider to be
"long." See
~ page 2 88, Tires and vehicle
load limits
for more important information .
Always use an accurate tire pressure gauge
when checking and adjusting inflat ion pres
sures. Check all of the tires and be sure not to
forget the spare tire .
If the pressure in any tire
is too high when the tire is "cold," let air out
of the tire slowly with the edge of the tire
gauge and keep checking the pressure until
you reach the pressure that is correct for the
load (passengers and luggage) and kind of
driving you plan to do.
If the pressure in any tire is too low, note the
difference between the pressure in the cold
tire and the pressure you need and add the air
that you need to reach the correct pressure for
the vehicle load (passengers and luggage) for
the tires on your vehicle as listed on the on
your vehicle and in this manual and the kind
of driving you plan to do.
Never exceed the maximum inflation pres
sure listed on the tire sidewall for any rea
son.
Remember that the vehicle manufacturer, not
the tire manufacturer, determines the correct
t ire pressure for the tires on your vehicle.
It is important to check the tire pressure when
the tires are cold.
- Read the required tire pressure from the tire
pressure label. The tire pressure label is lo-
cated on the driver's side B-pillar . The tire
liJJ>
pressure label lists the recommended cold
tire inflatio n pressures for the vehicle at its
maximum capacity we ight a nd the tires that
were on your vehicle at the time it was man
ufactured . For recommended t ire pressures
for normal load condit ions, please see chap
ter ~
page 284 .
-Turn the valve stem cap counter-clockwise
to remove it from the tire valve .
- Place the air pressure gauge on the valve.
- The tire pressures should only be checked
and adjusted when the tires are cold . The
s light ly raised pressures of warm tires must
not be reduced .
- Adjust the tire pressure to the load you are
carrying.
- Re insta ll the va lve stem cap on the valve .
When should I check the tire pressure ?
The correct tire pressure is especially impor
tant at high speeds . The pressure sho uld
therefo re be checked at least once a month
and a lways before start ing a journey. Do not
forget to check the tire pressure for the spare
wheel.
When should I adju st the tire pre ssures?
Ad just the tire pressure to the load you are
carrying. After changing a wheel
or replacing
wheels you have to adjust the tire pressures
on all wheels. In addition, you must then
store the new tire pressures i n the t ire pres
sure mon itor ing system
~ page 300.
A WARNING
Incorrect tire pressures and/or unde rinfla
tion ca n lead sudden tire failure, loss of
cont ro l, col lision, ser ious persona l inju ry
or even death.
- Whe n the wa rning symbo l
[ti] appears in
the instrume nt cl uster, s top and inspect
the tires.
- Incorrect tire pressure and/or underinfl a
t ion can ca use inc reased t ire wear and
can affect the handling o f the veh icle and
stopp ing ability .
- Incorrect tire pressures and/or underin
flation ca n also lead to sud den tire fa il-
Tires an d wheel s 287
ure, including a blowout and sudden de
flation, ca using loss of veh icle contro l.
- The driver is responsi ble for the co rrect
tire pressures for all tires on the veh icle.
The applicable pressure values are locat
ed on a sticker o n the dr iver's s ide B-pil
lar .
- Onl y when all tires on the vehicle are fil
led to the correct pressure, the t ire pres
sure mon itor ing system can work cor
rectly .
- The use of incorrect tire pressure va lues
can lead to acc idents or other damage .
Therefore it is ess ential that th e drive r
observe t he spec ified t ire p ress ure val ues
for the tires and the cor rect pressures for
the func tion of the t i re p ress ure moni to r
ing system.
- Always in flate tires to the recommen ded
a nd correct t ire p ress ure be fore dr iv ing
off .
- D riving with unde rinf lated tires bend
mo re, letting them get too hot resulting
in tread separation, s udden tire failure
and loss of control.
- Excessive speed and/overloading can
cause heat b uild- up, sudden tire failure
and loss of control.
- If the tire pressure is too low or too high,
the t ires will wear premat urely and the
veh icle w ill not handle well.
- If the tire is not flat and you do not have
to change a wheel immediately, d rive at
red uced speed to the nearest service sta
tion to check the t ire press ure and add
air as requ ired .
(D Note
Driving w ithout valve stem caps can cause
damage to the tire valves. To prevent this,
a lways make sure that factory installed
valve s tem caps o n all whee ls are sec urely
mounted o n the valve .
@ For the sake of the environment
Underinflated tires will also increase the
fuel consumpt ion.
•
•
288 Tires and wheels
Tires and vehicle load limits
There are limits to the amount of load or
weight that any veh icle and any t ire can carry.
A vehicle that is overloaded wi ll not handle
well and is more difficult to stop. Overload ing
can not on ly lead to loss of vehicle control
,
but can a lso damage important parts of the
vehicle and can lead to sudden tire failure in-
,
eluding a blowout and sudden deflation that
can cause the vehicle to crash .
Your safety and that of your passengers a lso
depends on making sure that load limits are
not exceeded. Vehicle load includes everybody
and everyth ing in and on the vehicle . These
load limits are tech nically referred to as the
vehicle's
Gross Vehicle Weight Rating
("GVWR").
The "GVWR" includes the we ight of the basic
vehicle, all factory installed accessories , a full
tank of fuel , oi l, coo lant and other fluids plus
maximum load. The maxim um load includes
the number of passengers that the vehicle is intended to carry ("seating capacity") with an
assumed weight of 150 lbs (68 kg) for each
passenger at a designated seating position
and the tota l weight of any l uggage in the ve
hicle. If you tow a trailer, the weight of the
trailer hitch and the tongue weight of the
loaded trailer must be included as part of the
veh icle load .
The
Gross Axle Weight Rating ("GAWR") is
the maximum load that can be applied at each
of the vehicle's two axles .
The Gross Vehicle Weight Rating and the
Gross Axle Weight Rating are listed on the
safety compliance st icker label located on the
driver's side B -pillar. Your Audi has 5 seating
positions, 2 in the front and 3 in the rear for
total seating capacity of 5. On vehicles w ith
six seats*, your veh icle has two front seats,
two seats in the second row seating and two
seats in the third row seating. On vehicles
with seven seats*, your vehicle has two front
seats, three seats in the second row seating
and two seats in the third row seating . Each seating
position has a seat belt
q page 175,
Safety belts .
The fact that there is an upper limit to your
vehicle's Gross Vehicle Weight Rating means
that the total weight of whatever is being car
ried in the vehicle (including the weight of a
trailer hitch and the tongue weight of the
loaded trailer) is lim ited. The more passen
gers in the vehicle or passengers who are
heavier than the standard we ights assumed
mean that less weight can be carr ied as lug
gage .
The tire pressure label on your Audi also lists
the maximum combined weight of all of the
occupants and luggage or other cargo that
the vehicle can carry . For the location of the
label
q page 284, fig. 251.
_& WARNING
Overloading a vehicle can cause loss of ve
h icl e control, a crash or other accident, se
rious personal injury, and even death.
- Carrying more weight than your vehicle
was designed to carry will prevent the
vehicle from handling properly and in
crease the risk of the loss of vehicle con
trol.
- The brakes on a vehicle that has been
overloaded may not be able to stop the
veh icle w ith in a safe distance.
- Tires on a vehicle that has been over load
ed can fail suddenly, including a blowout
and sudden deflation, causing loss of
control and a crash .
- Always make sure that the total load be
ing transported -including the weight of
a trailer hitch and the tongue we ight of a
loaded trailer -does not make the vehi
cle heavier than the vehicle's Gross Vehi
cle Weight Rating.
Determining correct load limit
Use the example below to cal
culate the total weight of the
passengers and luggage or
A WARNING
Sudden tire failure can lead to loss of con
trol, a crash and serious personal injury!
- Never drive a vehicle when the tread on
any tire is worn down to the wear indica
tors.
- Worn tires are a safety hazard, they do
not grip well on wet roads and increase
your risk of "hydroplaning" and loss of
control.
- Always keep chemicals that can cause
tire damage, such as grease, oil, gasoline
and brake fluid away from t ires.
- Tires age even if they are not be ing used
and can fail suddenly, especially at high
speeds . Tir es that are more than 6 years
old can only be used in an emergency
and then with special care and at lower
speeds.
- Never mount used tires on your vehicle if
you are not sure of their" previous histo
ry ." Old used tires may have been dam
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control. Tires and wheels 291
New tires and replacing tires and wheels
New tires and wheels have to be broken in
.
Fig. 255 Tir e specificat ion codes on t he s idewall o f a
tire
No. Description
CD Passenger car tire (where applicable)
@ Nominal width of tire in millimeters
® Ratio of height to width (aspect ratio)
© Radial
® Rim diameter code
® Load index and speed rat ing
(f) U.S. DOT tire identification number
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and materials
used
@ Maximum load rating
@ Treadwear, traction and temperature
grades
@ Maximum permissible inflation pres-
sure
The tires and rims are essential parts of the
vehicle's design . The ti res and rims approved
by Audi are spec ially matched to the charac
teristics of the vehicle and can make a major .,.
•