2015 AUDI A3 height

226 Tire s and wheel s
-Never mount used tires on yo ur 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 t ire failure
and loss of vehicle control.
- If you notice unusual vibration 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.
(D Note
- Please note that summer and winter
tires are designed for the cond itions that
a re typ ica l in those seasons. Aud i recom­
mends using w inter t ires d uring the win-
Glossary of tire and loading terminology
Accessory weight
means t he comb ined we ight (in excess of
those standard items which may be rep laced)
of automatic transmission, power steering,
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).
A spect ratio
means th e ratio of the height to the width of
the tire in percent. Numbers of 55 or lower in­
d icate a low sidewall for improved steer ing re­
sponse and better overall handling on dry
pavement .
Bead
means the part of the tire th at is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead s eparation
means a breakdown of the bond between
components in the bead.
Cord
means t he strands forming the plies in the
tire. ter months.
Low tempe ratu res signifi­
cantly decrease the elasticity of summer
tires, which affects traction and braking ability. If summer tires are used in very
co ld temperatures, cracks can form on
the tread bars, resu lting in permanent
tire damage that can cause loud driving
noise and unbalanced tires. Aud i is not
responsib le for this type of damage.
- Burn ished, polished or chromed rims
must not be used in winter weather. The
surfa ce of the rims does not have suff i­
c ien t cor rosion prote ct io n for this and
co uld be pe rmanen tly damaged by road
salt or simi lar substances. This damage
is not cove red by war ranty.
Cold tire inflat ion pre ssure
mea ns the t ire press ure recommended by the
vehicle manufacturer for a tire o f a des ignated
size that has not bee n driven for more than a
coup le of miles (ki lometers) at low speeds in
the three hour period before the tire press ure
is measured or adjusted.
Curb weight
means the weight of a motor vehicle w ith
standard equipment including the maximum
capacity of fuel, o il, and coolant, air condi­
tion ing and additional weight of optional
equipment.
E x tra load tire
means a tire design to operate at higher loads
and at higher inflation pressures than the cor­
responding standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or
"RF" on the sidewall.
Gross A xle Weight Rating ("GAWR")
means the load-carrying capacity of a single
axle system, measured at the tire-ground in-
terfaces.
IJ>,

236 Tires and wheels
unbalanced, resulting in vibrations you can
usually feel through the steering whee l.
Unbalanced wheels must be rebalanced to
avoid excessive wea r on steer ing, suspension
and tires . A wheel must a lso be rebalanced
when a new tire is installed.
Incorrect wheel alignment
I ncorrect wheel alignment can cause exces­
sive tire wear, impair ing the safety of the veh i­
cle. If tires show excess ive wear, have the
wheel alignment checked by an authorized
Audi dealer or qualified workshop.
All-wheel drive
Vehicles w ith quattro must a lways have tires
of the same size, construction and tread type.
F or details see
<=> page 190 .
A WARNING
Sudden tire failure can lead to loss of con­
trol, a crash and ser ious persona l 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 being used
and can fail suddenly, especially at high
speeds. Tires 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 o f vehicle control.
New tires and replacing tires and wheels
New tires and wheels have ta be broken in .
Fig. 160 Tire specificat ion codes on the s idewall of a
tire
No. Description
@ Nomina l w idth of t ire in mill imeters
® Ratio of height to width (aspect ratio)
© Radial
® Rim diameter code
® L oad index and speed rating
(J) U.S . DOT tire identification number
® Audi Origina l tire
® Sever snow conditions
@ T ire ply composition and materials
used
@ Maximum load rating
@ Treadwear, traction and temperature
grades
@ Maximum permissible inflation pres-
sure
T he tires and rims are essential parts of the
vehicle 's design . The tires and rims approved
by Audi are spec ially matched to the charac­
te ristics of the vehicle and can make a major .,..

contribution to good road holding and sa fe
handling when in good condition and properly
inflated
¢ .&. .
We recommend that all work on t ires and
wheels be performed by an authorized A udi
dealer. They are familiar with recommended
procedures and have the necessary spec ial
too ls and spare parts as we ll as the proper fa ­
cilities for dispos ing of the old tires .
Authorized Audi dealers have the necessary information about techn ica l requ irements for
installing or changing tires and r ims.
R eplacing t ires and wheel s
Tires shou ld be rep laced at least in pairs and
not individua lly (for example both front tires
or both rear tires together).
Be s ure to read and heed the information to
the tire pressure monitoring system
¢ page 243.
Always buy rep lacement radial tires that have
the same specifications as the t ires approved
for your ve hicle by Audi. Replacement tires
must always have the same load rating speci ­
fication as the original equipment or approved
optional tires listed in the table
¢ page 229.
Audi-approved specification tires are specially
matched to your vehicle and its load limits ,
and can contribute to the important road hold­
ing, driving character istics, and safety of the
veh icle. The table
( ¢ page 229) lists spec ifica­
tions of the t ires approved for the Audi mod­
e ls covered by your Owner 's Literature .
T he tire pressure labe l located on dr iver 's side
B-pillar
( ¢ page 229, fig. 157) lists the speci­
fications o f the orig inal equipment tires in­
stalled on your veh icle at the time it was man­
ufactured .
Federal law requires t ire manufacturers to
p lace s tanda rd ized information on the s ide­
wall of all tires
¢ fig . 160 . This information
i dent ifies and desc ribes the fundamental
characterist ics , the quality grade of the tire
and a lso provides a tire ide ntificat io n number
Tire s an d wheel s 237
for sa fety standard certification and in case of
a reca ll.
Tire specifications
Knowledge of tire specifications makes it eas­
ier to choose the co rrec t tires . Radial ti res
have the tire specifications marked on the
sidewa ll, for examp le:
255 /40 R 19 100 H XL
This co nta ins the following information :
P Indicates the tire is for passenger cars
(where app licab le)
255 Nom inal tire width i n mm of the tire
from sidewall edge to sidewall edge. In
general, the larger the number, the wider
the ti re
40 Height/w idth ratio in percent (aspect ra -
t io)
R Tire construct ion: Radial
1 9 Rim diameter code (i n inches)
100 Load ra ting code
H Speed ra ting letter code
XL (or "xl", "EXTRA LOAD" or "RF") Indicates
t h at the t ire is a "Reinfo rced " or an " Ext ra
Load " tir e
M+S (or "M/S") Indicates that the ti re has
some mud and snow capab ility
The tires could also have the informat ion of
direction of rotation ¢
page 225 .
Tire manufacturing d ate
The manufact uring date is also indicated on
the tire sidewall (possibly only on the
inner
s ide of the wheel):
"DOT ... 4513 .. . " means, for example, the tire
was produced in the 45nd week of 2013.
Speed rating (letter code )
The speed rating le tter code on the whee ls in­
dicates the maximum permiss ible road speeds
¢ .&. in Winter tires on page 241.
P up to 93 mp h (150 km/h)
Q up to 99 mph (158 km/h)
R up to 106 mph (170 km/h)
5 up to 110 mph (180 km/h)
•
•
•

24 2 T ire s and wheel s
Where snow chains are mandatory oncer­
tain roads, this normally also applies to
veh icles with all-wheel dr ive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design o f whee l bolts is matched to the
factory installed rims . If different rims are fit­
ted, the correct wheel bolts with the right
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model
r=> page 270.
A WARNING
Improperly tightened or maintained wheel
bolts can become loose caus ing loss of
c ont ro l, a co llision and serious persona l in­
Jury .
- Always keep the wheel bolts and the
threads in the wheel hubs clea n so the
wheel bolts can turn easily and be prop­ er ly t igh tened .
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can
become loose while d riving if greased or
oiled, even if tightened to the specified
torque.
- Only use wheel bolts that belong to the
rim being installed.
- Never use different whee ls bolts on your
vehicle.
- Always maintain the co rrect tighten ing
torq ue fo r th e wheel bo lts to reduce the
risk of a wheel loss . If the tightening tor­
que of the wheel bo lts is too low, they
can loosen and come out w hen the veh i­
cle is moving. If the tighteni ng torque is
too high, the whee l bolts and threads can be damaged and the whee
l can be­
come loose.
@ Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm) . Torque wheel bolts diago­
nally. After changing a whee l, the torque
must be checked as soon as possible with a
torque w rench -preferably by an author­
i zed Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-eq uipped w it h low aspect
ra tio tires. These tires have been tho roughly
tested and been se lected specifically fo r your
model for their superb perfo rmance, road fee l
and handling under a variety of d riving condi ­
t ions . Ask your author ized A udi dealer for
more details.
T he low aspect ratio of these tires is ind icated
by a numera l of
55 or less in the tire's s ize
designation. The n umera l represents the ratio
of the tire's sidewall height in relation to its
tread width expressed in percentage. Conven­
t iona l tires have a he ight/w idth ratio of 60 or
more .
The performance of low-aspect -ratio tires is
particularly sens iti ve to imp roper inflation
pressure. It is therefore important that low
a spect ratio tires are inflat ed to the specified
pre ssure and that the inflation pressure i s
regularly ch ecked and maintain ed. Tire pre s·
sure s should be checked at lea st once a
m onth and always bef ore a long trip
r=> page 231, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be d amage d more
easily by impact w ith potholes, curbs, gull ies
or ridges on t he road, particularly if the tire is
u nd eri nflated.

hold on to the ca r to keep your ba lance
and take care not to slip.
Raising the vehicle
Th e ve hicl e must be li~ed with the jack first
before the wheel can be removed.
F ig. 170 Sill p anels : m arkin gs
Fig. 171 Sill: posi tioning th e vehicle jack
.. Place the vehicle jack (vehicle tool kit) on a
firm surface . Use a flat, stable support if
necessary . On a slippery surface such as tile,
you should use a non -slip pad (such as a rub ­
ber mat) ¢_& .
.. Engage the
p arking brak e to prevent your
vehicle from rol ling u ninten tionally.
.. Move the
se lector leve r to pos ition P.
.. Find the marki ng (imprint) on the si ll that is
nearest the wheel that wi ll be changed
¢ fig . 170 . Behind the marking, there is a
lifting point on the si ll for the vehicle jack.
.. Vehicles with a sill : Note the position of the
s ill when pos ition ing the vehicle jack
¢ fig . 171.
.. Turn the
ve hicle jack located under the lift­
ing poin t on the s ill to raise the jac k until its
arm @
Q fig. 171 is located under the des­
ignated plastic mount c:::>
A, ¢(D .
.. Align the jack so that its arm @c:::> fig. 171
engages in the designated lifting point in
What do I d o now ? 251
the door si ll and the movable base ® lies
flat on the ground. The base @ must be ver­
tical under the lifting point @ .
.. Wind the jack up further until the flat t ire
comes off the ground
c:::> _& .
Position the vehicle jack
onl y under the desig­
nated lifting points on the si ll
c:::> fig. 170.
There is exactly one locat ion for each wheel.
The jack must not be positioned at any other location ¢ 8 ¢(1).
An
uns table surface under the jack can cause
the vehicle to slip off the jack. Always provide a firm base for the jack on the ground . If nec­
essary place a sturdy board or sim ilar support
under the jack . On
hard, slippery surfaces
(such as tiles) use a rubbe r mat or similar to
prevent the jack from slipping
Q & .
_&. WARNING
-You or your passengers co uld be in ju red
while changing a wheel if you do no t fo l­
low these safety preca utions:
- Position the vehicle jack on ly at the
designated lifting points and align the
j ac k. Otherw ise, the vehicle jac k co uld
slip and cause an injury if it doe s not
h ave sufficient hold on the vehicle .
- A soft or unstable su rface unde r the
ja ck may cause the ve hicle to slip off
the jack . A lw ays p rov ide a firm b ase for
the j ack on the ground . If necessary,
u se a st urdy board under the jack .
- On hard, slippery surface (such as t iles)
u se a rubber mat or similar to prevent
the jack from slipping .
- Only raise your vehicle with the vehicle
j ack provided by the factory . If you use
a veh icle jack for another vehicle, you r
vehicle can slide and cause injury .
- Changes in tempe rature or load can af­
fect the height of the veh icle .
- Never sta rt the engine when the vehi­
cle is raised , which cou ld cause an acci-
dent.
~

252 What do I do n ow ?
-Support the vehicle securely with ap ­
propriate stands if work is to be per ­
formed underneath the vehicle;
otherw ise, there is a potential risk for
in Jury .
- To help preven t injury to yourself and
your passengers:
- Do not raise the vehicle u nti l you a re
sure the jack is sec urely e ngaged .
- Passengers mus t not rema in in the ve­
h icle when it is jacked up .
- Ma ke sure that passengers wait in a
safe p lace away from the vehicle and
well away from the road and traffic.
- Make sure jack posi tion is co rrect, ad­
just as necess ary and then contin ue to
raise the jack .
- Changes in temperature or load can af­
fect the height of the vehicle .
0 Note
Do not lift the vehicle by the s ill. Pos ition
the vehicle ja ck only at the designated lift­
ing poi nts on the sill. Othe rwise, your vehi­
cle will be damaged .
Taking the wheel off/installing the spare
Follow these instructions s tep-by-step for
c hanging the wheel.
Fig . 172 Chang ing a w hee l: u sing th e screw driver ha n­
dl e (w it h th e bla de re mov ed) to t urn the bolts
Fig. 173 Ch ang ing a wheel : alignment p in in sid e th e
t op hole
After you have loos ened all wheel bo lts and
raised the vehicle off the ground, remove and
replace the wheel as follows :
Removing the wheel
.,. Use the hexagon al so cket in th e screwdri v­
er handle
to completely remove the top­
most whee l bolt and set it aside on a
clean
surfac e Q fig. 172 .
.,. Screw the threaded end of the al ignme nt
p in
from the tool k it hand-t ight into t he
empty bol t hole
Q fig . 173.
.,. Then remove the other wheel bolts as de ­
scr ibed above .
.,. Take off the whee l leaving the a lignment pin
in the bo lt ho le
Q (J) .
Putting on the comp act sp are wheel
.,. Lift the spare whee l and carefully slide it
over the alignment p in to guide it in place
Q (J) .
.,. Use the hexagonal socket i n the screwdriver
handle to screw in and tighten a ll whee l
bolts
slightly .
.,. Remove the alignment pin and insert and
tighten the rema ining whee l bolt slightly
like the rest .
.,. Turn the jack handle counter -clockwise to
lower the vehicle until the jack is fully re­
leased .
.,. Use the wheel bolt wrench to tighten all
wheel bo lts fi rmly
Q page 250 . Tighten
them
crosswise , from one bolt to the (ap­
proximately) opposite one, to keep the
wheel cente red.

26 6 Techni cal data
designated s eating position) and luggage
w eight ¢.&, .
Gross Axle W eight Rating
The Gross Axle Weight Rating is the maximum
l oad that can be applied at each axle of the
vehicle ¢Lr!, .
Vehicle cap acit y weight
The vehicle capac ity we ight (max . load) is list­
ed either on the dr iver's side B-pilla r or inside
the fuel filler flap.
_& WARNING
- T he actual Gross Axle Weight Rat ing at
the front and rear axles shou ld not ex­
ceed the permissible weights, and their
combination must not exceed the Gross
Vehicle Weight Rating .
Dimensions
The dimensions can vary depend ing on the
model and equipment.
Length
Width
W idth (ac ross m irrors)
Height (unloaded) a)
Turn ing circle d iameter
-
- Exceeding permissible weight ratings can
result in veh icle damage, acc idents and
personal injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distributed evenly in the
vehicle (passengers and luggage). When
transport ing a heavy load in the luggage
compartment, carry the load as near to
the rear axle as poss ible so that the vehi­
cle's handling is not impaired .
- Do not exceed the maximum permissible axle loads or the maximum gross veh icle
we ight. Always remember that the vehi­
cle's handling w il l be affected by the ex­
tra load. Therefo re, adj ust your speed ac­
cordingly.
- Always observe local regulat ions .
in (mm)
175 .3 (4456)
in (mm) 70 .7 (1796)
in (mm) 77 .l (1960)
in (mm) 55 .7 (1416)
ft (m) 35.8 (10.9)
al The he igh t o f th e ve hicle depe nds o n the tire s and the s usp en sion .
When driving on poor roads, by curb s and on
s teep ramp s, make sure tha t low-lying compo­
nent s such as the spoiler and exhaust sy stem
Capacities
Fuel tank
Front whee l Drive
All wheel drive
Winds hield washer system do not
come into contact w ith these or they
could be dam aged. This applies espe cia lly
when the vehicle is fully loaded .
gal (liters) approx.
13.2 (50.0)
gal (lite rs) approx. 14.5 (55.0)
quarts (liters) approx. 3.2 (3.1)