AUDI S4 2013 Owners Manual

~ Read the brake fluid level from the brake
fluid reservoir ~
fig. 188, ¢ page 221,
fig . 184.
T he brake fluid level must be be ­
tween the "MIN" and "MAX" markings.
The brake f luid reservoir is located at the rear
partition of the engine compartment on the
l eft side
¢ page 221 .
The fluid level may drop slightly after some
time due to the automatic adjustment of the brake pads . This is not cause for alarm .
If the brake fluid level falls considerably be­
l ow the "M IN" mark, the bra ke wa rning/ind i­
cator light (U .S . mode ls:
1111 , Canadian
models: .) will come on
¢ page 15. Do not
continue to operate the vehicle. The complete
brake system shou ld be thoroughly checked
by an authorized Audi dealer or qualified
workshop and the cause co rrected . If the
b rake fluid level is too low, the b rake wa rn ing/
i nd icator lig ht w ill illuminate . Co ntact an a u­
thor ized Audi dealer immediately.
@ Tips
The brake f luid rese rvoir is located unde r­
neath the cove r.
Changing brake fluid
Have the brake fluid changed by an experi­
enc ed technician .
Brake fluid ab sorbs moisture from the a ir. If
the water content in the brake fluid is too
hi gh, corrosion in the b rake system may result
after a per iod of t ime . The bo iling po int of t he
b ra ke fluid w ill also decrease con siderab ly and
d ec rease brak ing per forman ce.
Therefore, the brake flu id must be changed
every two year s. Always use new b ra ke fluid
which confo rms to Fede ral Motor Vehicle
S tand ard "FMVSS 1 16 DOT 4".
The brake flu id rese rvoir can be difficult to
r eac h, therefo re , we recommend that yo u
have the brake fl uid changed by yo ur aut ho r­
iz ed Audi dealer. Your dealer has the correc t
Checking and fillin g 229
tools, the right brake fl uid and t he know -how
to do this for you .
A WARNING
- Brake fl uid is poisonous. It must be stor­
ed only in the closed or iginal container
out of the reach of children!
- Brake failure can res ult from o ld or inap­
propriate brake f lu id. Observe these pre­
cautions:
- Use only brake fluid th at mee ts SA E
spe cificat ion
J 17 03 and conforms to
Fe dera l Mo to r Ve hicl e Standard 1 16.
Always check with yo ur autho rized Au di
dealer to make sure yo u are using the
correct brake fluid. The c orrect type of
brake f luid is also ind icated on t he
brake f luid reservoir .
- The bra ke fl uid must be new. Heavy use
of the brakes ca n cause a vapor lock if
the b rake fluid is left i n the system too
long. This can se riously affect the effi­
c iency of the b rakes as well as your
safety , T his could result in an accide nt.
(!) Note
Brake fluid will damage the pai nt of your
vehicle.
@) For the sake of the environment
Because of the prob lem of proper disposal
of brake fluid as well as the spec ial too ls
r equired an d th e nec essary exper tise, w e
r ecomme nd that yo u have th e brake flu id
c hanged by yo ur aut ho rize d Aud i dea le r.
Battery
General information
U nder normal operating cond itions, the bat­
te ry in your Audi does not need any ma inte­
nance . With
high outside temperat ures or
lo ng da ily drives we recommend that you have
t h e e lectrolyte leve l che cked by an autho riz ed
A udi de aler or qu alified workshop. The elec­
tro lyte leve l should also be checked e ach time
the battery is charged
¢ page 232 . 1J1>
•
•

230 Check ing and filling
Have the battery checked when you take your
vehicle in for service. You are well advised to replace a battery that is older than 5 years.
W ith certa in types o f airbag deployment, the
battery is disconnected from the vehicle elec ­
trica l system for safety reasons¢
& in Re­
pair, core and disposal of the airbags on
page 159.
Disconn ect ing the battery terminal s
Some vehicle functions (power window regu­
lators, for example) are lost if the battery ter­
minals are disconnected . These functions have
to be re learned after the battery terminals are
connected again. To prevent this, the battery
should only be disconnected from the vehicle
electrical system when absolutely necessary
for repairs .
Vehicles not dri ven fo r lo ng p eriod s
If you do not drive your vehicle over a period
of several days or weeks, electrical compo­
nents are gradually cut back or switched off.
This reduces energy consumption and main ­
tains starting capabil ity over a longer period
¢ page 192.
Some of the conven ience functions may not
operate, such as the inter ior lights or the
power seat adjustment. The conven ience
functions will be ava ilable again when you
turn on the ignition and start the eng ine.
Winter operati on
During the winter months, battery capacity
tends to decrease as temperatu res drop . This
is because more power is also consumed while
start ing , and the headlights, rea r window de­
fogger, etc., are used more often .
Avoid unnecessary power consumption, par­
ticularly in c ity traffic or when traveling on ly
short distances. Let you r authorized Audi
dea ler check the capacity of the vehicle bat ­
tery before winter sets in
¢ page 232. A well
charged batte ry w ill not only prevent sta rting
prob lems when the weather is cold, but wi ll
a lso last longer.
(D Tips
If your vehicle is left standing for seve ral
weeks at extremely low temperatures, the
vehicle battery sho uld be removed and
stored where it w ill not freeze . This will
prevent it from be ing damaged and having
to be replaced .
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart­
ment under the floor. Before you check any­
t hi ng in the luggage compartment,
read and
heed all WARNINGS
¢ ,& .
Always heed the safety warnings , when work­
ing on the vehicle battery or the vehicle e lec­
trical system to prevent injury.
Th e follo wing WARNINGS are very
important when working on the battery :
Al ways heed the follo wing WARNING SYM­
BOLS and safety prec aution s when working
on the battery .
® Always wear eye protection .
,0,. Battery acid contains sulfuric acid . Al­
~ way s wear glov es and ey e prot ectio n.
~ No
\!SI -sparks
-flames
-smoking.
A Wh en a battery is charged , it produ ce s
~ hydro gen gas which is e xplosi ve and
c o uld cau se pe rson al injur y.
~ Always keep the battery well out of
'if!:11 reach of children .
_& WARNING
Whenever working on the battery or on
the electrical system, there is the risk of
injury, accident and even fire . Read and
heed the following WARNINGS:
-

-Always wear eye protection. Do not let
battery acid or any lead particles get on
your skin or clothing. Shield your eyes .
Explosive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid . Sulfu­
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilation open­
ings.
- If you get battery acid in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get
medical attention .
- If you should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light.
- Do not smoke.
- Do not interchange the positive and neg-
ative cables .
= When working on the battery, be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury .
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys­
tem, disconnect the negative ground ca­ ble .
- Before performing any work on the elec­
trical system, switch off the engine and
ignition as well as any electrical equip ­
ment. The negative cable on the battery
must be disconnected . If you are just go­
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other­
wise you will set off the alarm.
Checking and filling 231
-When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch­
ed off. Reconnect the positive cable first
and then the negative cable . Never inter ­
change the cables -this could start a fire!
- Never charge a frozen or a thawed-out
battery . It could explode! If a battery has
frozen , then it must be replaced . A dis­
charged battery can freeze over at 32°F
(QOC),
-Make sure the vent hose is always attach­
ed to the opening on the side of the bat­
tery .
- Never use batteries which are damaged.
There is the danger of an explosion! Al­
ways replace a damaged battery.
&_ WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive problems. Wash hands after han­ dling.
(D Note
- Do not disconnect the vehicle battery
when the ignition is switched on or when the engine is running, otherwise, you will
damage electronic components in the
electrical system.
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth­
erwise it will be damaged and will then
have to be replaced.
•
•

232 Checking and filling
Battery charging
Starting the engine requires a well charged
battery.
Fi g. 1 89 Engine co mpart ment: C onn ecto rs fo r charger
and jumper cab les
Always read and heed all WARNINGS be low
c:> A and c:> A in Working on the battery on
page 230 .
.,. Turn off the ignit ion and a ll electrical con­
sumers.
.,. Make sure the area is well venti lated when
you cha rge the battery .
.,. Open the engine hood
r:::.> page 219 .
.,. Open the cover on the pos it ive pole
<::.> fig . 189 .
.,. Co nne ct the charger c onnec tors a ccord ing
to the instructions to the
jump start bolts.
(Bo lts under the cover = "positive" , Bolts
with hex head= "negative") .
.. Only now pl ug the mains lead for the charg­
ing equipment into the wall outlet a nd turn
i ton
c:> &_ .
.,. Mak e sure the charging rate is not over
30 amp s/14 .8 Volt .
.,. When the ba tte ry is f ully charged: Turn the
c h arging e quipment o ff and
remove t h e
m ain s le ad from the w all outle t.
.,. Now remove the clam ps for the charging
equipment.
.,. Close the cover on the pos it ive po le .
.. Close the hood
c:> page 219 .
A discharged battery can freeze at tempera­
tures of on ly 32 ° F (0 °C). A llow a frozen bat­
tery to thaw completely before attempt ing to
charge it
c:> .& . However, we recommend not
usi ng a thawed battery again because the bat- tery casing can be cracked due to ice forma
­
t ion an d can leak battery acid.
Battery charging (Maximum charging rate
of 30 amps/14.8 Volt)
W hen charging at low vo ltages (e.g. wi th a
trickle charger ), the battery cables do not
have to be disconnected f irst . The battery
caps should
not be opened when charging a
battery.
It i s not necessa ry to remove the battery from
the luggage compartment.
Fast charging the battery (charging rate
abov e 14 .8 Volts)
F or technica l reasons do not use a battery
c h arger that uses voltage greater than 14.8
Volts to c harge yo ur vehicle's battery.
A WARNING
-----=--
Charging a battery can be dangero us .
- Always follow the operating instructions
provided by the battery cha rger manu­
factur er when charg ing your battery .
- Never charge a frozen battery. It may ex­
p lode because of gas trapped in the ice .
Allow a frozen batte ry to thaw out first.
- Do not reuse batteries w hich were fro­
ze n. The battery hous ing may have
cracked and weakened when the battery
froze.
- Cha rge the battery in a well ventilated
a rea . Keep away from open flame or elec­
tr ica l spar k. Do not smoke. Hy drog en gas
genera ted by t he battery is e xplos ive .
- To reduc e the danger of explosion,
neve r
connec t or d isconnect c harger cab les
while the charge r is ope rat ing .
- Fast c ha rging a ba tte ry is dange rous and
should o nly be attempte d by a compe­
t en t tech nician wi th the p rope r equip­
m en t.
- Batt ery acid tha t m ay sp ill dur ing c ha rg­
i n g should be w ashe d off with a s olu tion
o f w arm water a nd baking so da to neu-
tralize the a cid. ....
L..__ _____________ _J ...

(D Note
Never use a fast charger as a booster to
start the engine . This will seriously dam­
age sensitive electronic components, such
as control units, relays, radio, etc ., as well
as the battery charger .
Battery replacement
The new battery mu st have the same specifi­
cations and dimensions as the original equip­
ment battery .
Intelligent energy management in your vehi­
cle is responsible for d istributing the electr i­
cal energy throughout your vehicle
c::>
page 192. The intelligent energy manage­
ment system w ill keep the engine battery
charged bette r then vehicles w ithout t his sys­
tem. To make sure the additional electr ica l en­
ergy is available once again after you have
changed the battery, we recommend that you
install batteries of the same type and manu­
facture only (the same as those installed at
the time your vehicle was delivered). Specifi­
cations are listed on the bat tery hous ing. Your
author ized Audi dealer must code the battery
in the energy management system to enable
you to use the energy management functions
correctly after replac ing the battery .
If it is not possible to use a battery of this
type, the new battery must have the same ca­
pac ity, voltage (12-volts), amperage, con­
struction and plug sea ling.
When insta lling the battery, make sure the ig ­
nition and all electr ical consumers are turned
off.
(D Note
Make sure the venti lation hose on the s ide
of the battery is connected , othe rwise
fumes or battery ac id can leak out .
@ For the sake of the environment
Because of the problem of proper d isposal
of a battery, we recommend your author­
ized Aud i dealer change the battery for
Checkin g and fillin g 233
you. Batteries contain sul fur ic acid and
l ead and must always be disposed of prop­
erly in comp liance with a ll environmental
regulations. Disposing of vehicle batter ies
i mproperly is very dangerous to the envi­
ronment .
Windshield/headlight*
washer container
Fig. 190 En gin e compart men t: Cove r on the w ind­
s hi eld an d headligh t* was her fl uid conta iner
The washer fluid container is marked w ith the
symbol
Q on its cap c::>fig. 190, c::>page 221,
fig. 184 .
.,. Before you check anything in the engine
compa rtment,
always read and heed all
WARNINGS
c::> .&. in Working in the engine
compartment on page 219.
.,. Lift the f iller cap tongue to add washer flu­
id. You can fi ll the container to the top .
.. Press the cap back onto the fi ller neck after
filling the container .
You can find the reservoir
capacity in the table
in c::>
page 2 77 .
Clean water should be used when filling up.
If
possib le, use soft water to prevent scaling on
the washer jets . Always add a glass cleaner
solution (with frost protection in the winter) .
(D Note
Do not mix engine coolant antifreeze or
any other additives to fill up the wind­
shield washer reservoir .
•
•

234 Tire 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 a ll-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 separat ion and blowouts.
Avoiding 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 gre ase, 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.
Storing 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 whee ls or t ires should be
stored in a cool, d ry and preferably dark place .
Store tires in a vertical pos ition if they are not
mounted on r ims, 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 ofte n not readily
vis ible . If you notice unusual v ibrat ion or the
vehicle p ulls to one s ide, th is may ind icate
t h at 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 ks hop.
Unidirectional t ires
A un idirectional tire can be identified by ar­
rows on the s id ewa ll, that po int in the direc­
t ion the t ire is desig ned to rotate. You mus t
f ol low the specified d irection of rotation . This
is necessary so that these tires can develop
their optimum characterist ics regarding grip,
road no ise, wear and hyd rop laning resistance.
For more information
¢ page 263.
A WARNING
-New tires or tires that are o ld, worn or
damaged cannot provide maximum con­
trol and braking ability .
-
-New tires tend to be slippery and must
also be broken-in. To reduce t he risk of
losing control, a collision and se rious
pe rsonal injuries, drive w it h specia l care
for the first 350 miles (560 km).
- Driving with worn or damaged tires can
le ad 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
an d 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.

-Never mount used tires on yo ur vehicle if
yo u 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.
- If you notice unusual vibration or if the
vehicle pulls to one side when d riving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age .
(D Note
Please note that summe r and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight means the comb ined weight (in excess of
those sta ndard items which may be rep laced)
of au toma tic transmission, power steer ing ,
power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory-installed equip­
ment (whether installed or not) .
Aspect ratio
means the rat io o f the height to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improved steering re­
sponse and better overa ll handling on dry
pavement .
Bead
means the part of the t ire t hat is made o f
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead .
Cord means the strands forming the plies in the
tire.
Tire s an d wheel s 235
typica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
dec rease the e lasticity of summer t ires,
which affects tract ion and brak ing ability.
If summer t ires are used i n very co ld tem ­
peratures, cracks ca n form o n the tread
bars , res ulting in perma nen t tire damage
that can cause loud driving noise and un­
bala nced ti re s. Audi i s not respon sible for
th is type of damage .
Cold tire inflation pressure
means the t ire p ress ure recommended by t he
vehicle manufacture r fo r a tire o f a des ignated
s ize t hat has not bee n driven for more than a
coup le o f miles (k ilometers) at low speeds in
the three hour period before the tire press ure
is m easured or adjusted.
Curb weight
me ans the we ight of a motor ve hicle with
st andard equipmen t incl ud ing the max imum
capacity of fuel, oi l, and coolant, air condi ­
tioning and additional weig ht of optiona l
equipment.
Extra load tire
means a t ire design to oper ate a t higher load s
and at higher inflation pressures than the cor­
responding standa rd tire . Extra load tires may
be identified as "XL", "x l", "EXTRA LOAD", o r
"RF" on the sidewal l.
Gross Axle Weight Rating ("GAWR")
me ans the load-ca rry ing capac ity of a single
axle system , measured at the tire -ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
the ve hicl e. .,..
•
•

236 Tires and wheels
Groove
means the sp ace between two ad jacent tread
ribs .
Load rating (code )
means the maximum load that a tire is rated
to carry fo r a g iven inflat ion pressu re. You
may not find this in fo rmat io n on all t ires be­
c a use i t is no t re quir ed by law.
Maximum load rating
means the load rating for a t ire at the max i­
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means t he sum of:
(a) Curb weig ht
(b) Accessory weight
( c ) Vehicle c apa city we ight, and
(d) Prod uction opt ions we ight
Maximum (permissible) inflation pressure
means t he maximum co ld inflation pressure
to which a tire may be inflated . Also called
"maxim um infla tion p ressu re ."
Normal occupant weight
means 150 lbs. (68 k ilog rams) times the
n umber of occupants seated in the vehicle up
to the tota l seating capacity of yo ur vehicle .
Occupant distribution
means dist ribution o f occ upants in a veh icle.
Outer diameter
means t he overa ll diamete r of a n inflated new
tire.
Overall w idth
means the linea r distance between the exter i­
ors of the sidewalls of an inflated tire, includ ­
ing e levations due to labeli ng, decorations, or
p rotectiv e bands o r ribs .
Ply
means a layer of rubber-coated para llel cords.
Production options weight
me ans the com bine d we igh t of tho se ins tall ed
regular prod uction opt ions we ighing over 5
lb s. (2 .3 kg) in excess of those stan da rd item s
which they replace, not previously considered
in curb weight or accessory we ight, including
heavy duty brakes, ride levelers , roof rack ,
heavy duty battery, and special tr im .
Radial ply tire
means a pneumat ic tire in wh ich the ply cords
t h at exte nd t o the beads are laid at substa n­
t ia lly 90 deg rees to the center line of the
tread .
Recommended inflation pressure
see<=> page 235, Cold tire inflation pressure.
Reinforced tire
means a t ire des ign to operat e at h igher loads
and a t higher in flation pressures than t he cor­
re spondi ng s tand ard tire. Reinfor ce d tires
may be iden tifie d as "X L" "xl" "E X TRA LOAD"
' ' '
or "RF " on the sidewa ll.
Rim
means a metal s upport for a ti re or a tire and
tube assembly upon whi ch t he tire bea ds are
sea ted.
Rim diameter
means nom inal d iameter of the bead seat. If
you change your wh eel s ize, you wi ll have to
purchase new ti res to match the new r im di­
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim fla nges .
Sidewall
means tha t p ort ion of a tire betwee n the
t rea d and be ad.

Speed rating (letter code)
means the speed at wh ich a tire is des igned to
be driven for extended periods of t ime . The
ratings range from 93 mph (150 km/h) to
186 mph (298 km/h) ¢
page 247 . You may
not find this information on all tires because
it is not required by law.
The speed rating letter code, where applica­ ble, is molded on the tire sidewall and indi­
cates the maximum permissible road speeds
¢ &. in Winter tires on page 250.
Tire pressure monitoring system*
means a system that detects when one or
more of a vehicle's tires are underinflated and
illuminates a low tire pressure warn ing te ll­
tale .
Tread
means that port ion of a tire that comes into
contact with the road.
Tread separation
means pulling away of the tread from the tire
carcass .
Treadwear indicators (TWI)
means the projections within the pr incipal
grooves designed to give a visual ind ication of
the degrees of wear of the tread. See
¢
page 244, Tread Wear Indicator (TWI) for
mo re inf ormat ion on measuring tire wear.
Uniform Tire Quality Grading
is a tire information system developed by the
United States National Highway Traffic Safety
Admin istration (N HTSA) that is designed to
help buyers make relative comparisons among
tires . Th e U TQG is not a safety rating and not a
g ua ran tee that a tir e will last for a prescribed
number of mi les (kilometers) or perform in a
certain way. It simply gives tire buyers addi ­
tional information to combine with other con-
Tires and wheels 237
siderations, such as price, brand loyalty and
dealer recommendations. Under UTQG, tires
are graded by the t ire manufacturers in three
areas : treadwear, traction, and temperature
resistance. The UTQG informat ion on the tires,
molded into the sidewalls .
U.S. DOT Tire Identification Number (TIN)
This is the tire's "serial number". It begins
with the letters "DOT" and indicates that the
tire meets all federa l standards. The next two
numbers or letters indicate the plant where it
was manufactured, and the last four numbers
represent the week and year of manufacture.
For example,
DOT ... 2212 ...
means that the tire was produced in the 22nd
week of 2012. The other numbers are market­
ing codes that may or may not be used by the
tire manufacturer. This information is used to
contact consumers if a tire defect requires a
recall.
Vehicle capacity weight
means the rated cargo and luggage load plus
150 lbs . (68 k ilograms) times the vehicle's to­
tal seating capacity as listed on the label lo­
cated on the driver's side B -pillar .
Vehicle maximum load on the tire
means that load on an individual tire that is
determined by distributing to each axle its
share of the maximum loaded vehicle weight
and dividing by two.
Vehicle normal load on the tire
means that load on an individual tire that is
determined by distributing to each ax le its
share of the curb weight, accessory weight,
and normal occupant weight (distr ibuted in
accordance with table below¢
page 238)
and dividing by two.
•
•

238 Tires and wheels
Occupant loading and distribution for vehicle normal load for various designated seating
capacities
Designated seating capacity,
number of occupants Vehicle normal load
, number Occupant distribution in a nor-
of occupants _____ mally loaded vehicle
5 3 2 in fro nt, 1 in back seat
Cold tire inflation pressure
Tire pressure affects the overall handling, performance and safety of a vehicle.
Fig. 19 1 T ire pressure label : located on driver's side B·
pillar
Tire pressure genera lly refers to the amount
of air in a t ire that it needs it to do its job and
safely carry the combined load of the entire
vehicle and its contents . Tire pressure is
measured in kilopasca ls (kPa), the i nterna·
tional measur ing unit and in pou nds pe r
squa re inc h (PSI). Tire pressure is based in
par t on the vehicle's desig n and load limit -
the greatest amoun t of weight that the vehi·
cle can carry safe ly and the t ire size . The prop·
er tire pressure is freq uently referred to as the
" recommended cold tire inf lation pressure."
A ir in the tires expands when the tire heats up
because of internal frict ion when it flexes in
use . The t ire p ressu re is higher when the tire
h as wa rmed up tha n when it is "cold ." It is the
in flat io n pressu re i n a "cold" tire that counts.
Th erefore, you shou ld neve r let air ou t of a
warm tire to match " co ld tire inflat ion pres­
sure" recommendations . The t ires wo uld then
be underinflated and could fail su ddenly.
M ain taining p roper t ire pr essu re is one of the
most im po rt an t th ings you ca n d o to he lp
avoid sudden tire failure. Underin fla ted t ires
a re a ma jo r cause of s udden tire failure. Keep·
i n g tires at the right pressure is also impor­
tant for safe and responsive vehicle handling,
-U'>
-
---------------------- ,;
•(=~= I: I::... 1)§ :l!: n-...,....,....,~ ...... ~-...,..., ..... _ ... U ........ ~-·~N.-..-.we..... .... lllt-
-AVANT ...,.
-...... .. _
-KPA. a PSI
-KPA. a PSI
-KPA. a PSI
Fig. 192 Ti re pr essure labe l
SEE OWNEJICS MANUA1 FOA A,DOITl<>N.IU. INfORMATlON
VOIR L£ MANUll DUPR0ftlET""" P"OUR i-t.US DE RENSEIGMEMENfS
traction, braking and load carrying. Tire pres­
sures are particularly important when the
vehicle is being driven at higher speeds, and
then especially when heavily loaded even
within the permissible load-carrying capaci­
ties approved for your vehicle .
The recommended tire pressures f or y our Audi
depe nd on the kind of tires o n your ve hicle
and the numbe r of passe ngers and/o r amount
of luggage you w ill be t ransporti ng .
The tire pressure label is located on the driv­
er's side B-pillar . The tire pressure labe l lists
the recommended cold t ire inflat io n press ures
for the vehicle at its maximum capac ity
weig ht an d tires t hat were o n your veh icle at
t h e time it was m anufactur ed.
If you wish to improve comfort wh en operat­
ing the vehicle at normal load (up to 3 occu­
pant s), you can ad just tire pre ssure s to tho se
specified for normal vehicle load . Before op­
erating the vehicle at maximum load, you
mu st increase the ti re pressures to those
specified for maximum vehicle load
~ ,&. .
Bear in min d that the tire pressure mon itor ing
system * can o nly mo nitor the tir e press ures .,.