height AUDI Q3 2015 User Guide

206 Tires and whe els
& WARNING
Sudden tire failure can lead to loss of con­
trol, a crash and serious 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
yo ur risk of "hydroplan ing" 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 . T ir es that are more t han 6 years
o ld can only be used in an emergency
and then with special care and at lower
speeds.
- Never mount used ti res 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.
New tires and replacing tires and wheels
New tires and wheels have to be broken in .
Fig. 156 Tir e specificat ion codes on t he s idew all o f a
t ire
No. De scription
@ Nom inal width of tire in millimeters
® Ra tio of height to width (aspect ratio)
© Radial
® Rim diameter code
® L oad index and sp eed rating
(J) U.S. DOT tire identifi cation number
® Audi Original tire
® Sever snow cond itions
@ Tire ply compos ition and materials
used
@ Maximum load r ating
@ Treadwear, traction and temperature
grades
@ Maximum permissible inflation pres-
sure
T he t ires 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 ris tics of the vehicle and can ma ke a major .,..

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0 ::i co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
contribution to good road holding and safe
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 213.
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 199.
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 199) 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 199, fig. 153) 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. 156 . 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 207
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:
P255 / 35 R20 97Y 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
35 Height/w idth ratio in percent (aspect ra -
t io)
R Tire construct ion: Radial
1 9 Rim diameter code (i n inches)
96 Load rating code
Y Speed ra ting letter code
XL (or "xl", "EXTRA LOAD", or "RF" Indicates
t h at the t ire is a"Re info rced" or an " Extra
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 195 .
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 ... 2214 ... "means, for example, that
the tire was produced in the 22nd week of 2014.
Speed rating (letter cod e)
The speed rating letter code on the whee ls in­
dicates the maximum permissible road speeds
¢ .&. in Winter tires on page 211.
P up to 93 mp h (150 km/h)
Q up to 99 mp h (1 58 km/h)
R up to 106 mph ( 170 km/h)
•
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212 Tire s and wheel s
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow cha in manufacturer when doing so.
(D Tips
Where snow chains are mandatory oncer ­
tain roads, this normally also applies to
veh icles with all wheel drive .
Wheel bolts
Wheel bolts must always be tightened to the
correct torque.
The design o f whee l bolts is matched to the
factory insta lled rims . If different rims are fit ­
ted, the correct wheel bolts with the right l ength and correctly shaped bolt heads must
be used. This ensures that wheels are f itted
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¢
page 239.
.&_ WARNING
Improperly tig htened or maintained wheel
bolts can become loose ca using loss of
cont ro l, a co llision and serious p ersona l in­
Jury.
- Always keep the wheel bolts and the
threads in t he wheel hubs clea n so the
wheel bolts can tu rn easily and be prop­
erly tigh tened.
- N ever grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile d riving if greased or
oiled, even if tightened to the specified
torq ue.
- O nly use wheel bo lts that be long to the
rim being installed.
- N ever use different whee ls bolts on your
vehicle.
- Alw ays mai nta in the co rrec t tighte ning
tor que fo r the 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 when the veh i- cle is moving.
If the tig
hte ning torq ue is
too high, the wheel bolts and threads
can be damaged and the wheel can be­
come loose.
(D Note
The specified torque for the whee l bolts is
105 ft lbs. (140 Nm) with a tolerance of
± 7,4 ft lbs. (± 10 Nm). Torque whee l bolts
diagonally . After changing a wheel, the
torque must be checked as soon as poss i­
ble with a to rque wrenc h - preferab ly by an
a uthorized Aud i dea le r or qualified wor k­
shop.
Low aspect ratio tires
Your A udi is factory -eq uipped w it h low aspect
ratio tires. These tires have been thoroughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and handling under a variety of driving condi­
t ions . Ask your authorized Audi dealer for
more details .
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral represents the ratio
of the tire's sidewall height in relation to its
t read width exp ressed in percentage. Conven­
tiona l tires have a he ight/w idth rat io of 60 or
more.
The performanc e of low-a spect-ratio tire s is
pa rticularly sen sitive to improp er inflation
pre ssure. It i s therefor e important that low
a spe ct ratio tir es are inflated to the spe cified
pre ssure and that the inflation pre ssure i s
regula rly checked and mainta ined. Tire pre s­
sure s should be checked at lea st once a
month and always befo re a long trip
¢ page 201, Checking tire pressure.
What you can do to avo id tire and rim
damage
Low aspect ratio tires can be damaged mo re
easily by impact w ith potholes, curbs, gul lies
or ridges on the road, particularly if the tire is
underinflated . ..,.

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0 ::i co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Gross Axle We ight Rating
The G ross Axle Weight Rating is the maxim um
l oad that can be applied at each axle of the
vehicle
c::> &. .
Vehicle capacity weight
The vehicle capac ity we ight (max. load) is list­
ed on the d river 's side 8-p illar.
Roof weight
The maximum perm iss ible roof we ight is
165 lb (75 kg ). The roof weig ht is the total of
the we ight of the roof rack, the attachments
a nd the cargo you are carrying.
.8, WARNING
- T he ac tual Gross Axle Weight Rat ing at
the front and rear axles sho uld not ex­
ceed the permissi ble weights, a nd their
combination must not exceed the Gross
Vehicle Weight Rat ing.
- Exceeding permissib le we ight ratings can
result in vehicle damage, accidents and
persona l injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distrib uted evenly in the
vehicle (passengers and luggage). When
transpo rting a heavy load in the l uggage
compartment, carry the load as near to
the rea r axle as possib le so that the ve hi­
cle's handling is not impa ired.
- Do n ot exceed the maxim um permissible
axle loads o r the maximum gross vehicle
weig ht. Always rememb er that the ve hi­
cl e's ha ndling will be affected by t he ex­
t ra load. T herefore, adjust you r speed a c­
c or dingly.
- Always obse rve lo ca l regu lations.
Dimensions
Length in (mm) 172.6 (4385)
Width in (mm) 72
.1 (1831)
.
Techni cal Dat a 235
Widt h (ac ross mir- in (mm) 79.5 (
2019)
rors)
H eight (unload- in (mm)
62.6 ( 1590)
ed )a)
a) The height of the vehicle depends on the t ires and the
s u spension.
When dr iving up steep ramps, on rough roads,
ove r cu rbs, etc. it is important to remember
t h at some parts of you r vehicle, such as spo il­
ers o r exha ust sys tem components, may be
cl ose to the g ro und. Be carefu l not to dam age
them.
Capacities
Fue ltank:tota lca- gal ( lit-16.9 (64.0)
pac ity ers)
Windshield washe r
quarts
4.8 (4.5)
fluid container (liters)
•
•

250 Index
Pregnant women Specia l consid erations when wearing a
safety be lt .... ... .... ... .. .. .... . 109
Prope r safety belt pos it ion . .. .. .. .. .. . 108
Proper seat ing pos ition
Front passenger . . . . . . . . . . . . . . . . . . . . 96
Occupants .. ................ ... ... . 95
Rear passengers . . . . . . . . . . . . . . . . . . . . 97
Protecting . . . . . . . . . . . . . . . . . . . . . . . . . 172
P rotective liner .. .. ..... ... .. .. .... .. 62
Q
Qua rtz clock . . . . . . . . . . . . . . . . . . . . . . . . 23
q uattro
refer to All -wheel dr ive ..... ... .. ... 158
Question What happens to unbe lted occupants? 105
Why safety belts? ........ .. .. .... . 104
R
Radiator fan 188
Ra in/ lig ht sensor
H eadlights . ... .......... .. .. .. .. .. 40
I n termittent (windshield wipe rs) .. .. .. 4 6
Sensor defective .. ..... ... .. .. .... .. 1 9
R eading lights .............. ... .. .. .. 43
Rear lid Automatic operation ...... .. .. .... .. 35
Emergency release .. ... ... .. .. .. .. . . 36
Opening and clos ing ....... ... .. .... 34
Rear light Defective ................. .. .... .. 18
Rear v iew c amer a
refer to Parking systems . . . . . . . . . . . . . 89
Rear v iew mir ro r .. ...... .... ... .. .. .. 45
Rear window heating . . . . . . . . . . . . . . . . . 65
Re circul ation mode (au tomatic climate
con trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 177
Release lever for hood . . . . . . . . . . . . . . . 179
R emote cont rol
Rese tting remo te control .. .. .. .. .. . . 30
Remote control key . . . . . . . . . . . . . . . . . . . 29
un locking/locking ............ .. .... 30 R
emote maste r key
Battery replacement . . . . . . . . . . . . . . . . 30
Check light . ... .. ... .. ..... ... .. .. . 30
Remote rea r lid re lease .......... .. .. . 34
Repair ma nuals .. .. .. .. ...... ... .. .. 237
Repairs Airbag system ... .. ... ..... ... .. .. 126
Rep la cement key .. ............. .... . 29
Replacing Windsh ield w iper b lades ........... .. 48
R e pl acing b ulbs ... ... .. ..... .... . .. 226
Replac ing tires and wheels ........ .. .. 20 7
Rep lacing wiper b lades .......... .. .. . 47
Repor ting Sa fe ty Defects . . . . . . . . 101, 102
Reset button . . . . . . . . . . . . . . . . . . . . . . . . 23
Resetting remote cont ro l ...... ... .. .. . 30
Retracto r ... .... .. ............. .... 10 7
Reversible floor . . . . . . . . . . . . . . . . . . . . . . 62
Rims Cleaning . ..... .. .. ... .. ..... ... .. 171
Roof rack
Roof~ ad ..... .. ... .......... .. .. . 58
Roof weight ..... ... .. ..... ... .. .. . 58
s
Safe drivi ng habits ................ .. . 94
Safety be lt pos ition ............... .. 108
Safety be lt height adjustme nt . ...... 110
Safety be lts wo rn by pregnant women . 109
Safety be lt pretensioner .......... .... 110
Serv ice and disposal . . . . . . . . . . . . . . . 111
S af ety be lts . ...... ............. .... 1 07
C leaning . ..... .. .. ... ..... ... .. .. 172
Danger to passengers who do not wear a
safety be lt . ... .. .. .... .... ... .. .. 105
Fastening . . . . . . . . . . . . . . . . . . . . . . . . 107
Height ad justment ............. .. .. 110
Improperly worn ...... .. ... ..... .. 110
Not wor n ..... .. .......... ...... . lOS
Safety be lt pos ition ......... ...... . 108
Safety i nstr uctions ... .......... .. .. 10 7
Secu ring child sa fe ty seats .... .. .. .. 143
S pec ia l considerations for pregnan t
women ... .... .. .. ... ..... ... .. .. 109
Un fastening ..... ... .. ..... ... .. .. 109
Warning/ind icator light ......... .... 104