wheel size AUDI Q5 2017 Owners Manual

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also not inflate in side or rear collisions, or in
ro ll-overs.
A lwa ys rememb er: Airbags will deploy only o nce,
and on ly in certain kinds of coll is ions. Your safety
be lts are always there to offer protection in those
situations in which airbags are not supposed to
deploy, or when they have a lready deployed; for
examp le, when your vehicle str ikes or is struck by
another after the first collis ion.
This is just one of the reasons why an airbag is a
supp lementary restraint and is not a substitute
for a safety belt. The airbag system works most effect ively when used with the safety belts.
Therefore, always properly wear your safety belts
c::>page 140.
A WARNING
Sitting too close to the steer ing whee l or in­
st rument panel will decrease the effect ive­
ness of the airbags and will inc rease the risk
o f persona l injury in a co llision.
- Never sit closer than 10 inches (25 cm) to
the steering wheel or instrument panel.
- If you cannot sit mo re than 10 inches
( 2 5 cm) from the steering wheel, inves ti­
gate whethe r adaptive equipment may be
available to help you reach the pedals and
increase your seating distance from the
steering wheel.
- If you are unrest rained, leaning forward, s it­
ting s ideways or out of position in any way,
your risk of in jury is much h igher.
- Yo u will also receive serious injur ies and
cou ld even be killed if you are up against the
airbag or too close to it when it inf lates -
even with an Advanced Airbag.
- To reduce the risk of in jury when an airbag
inflates, a lways wear safety belts p roperly
i=> page 143, Safety belts .
-Always make certain that ch ild ren age 12 or
younger always ride in the rear seat. If chil­ dren are not properly restra ined, they may
be severe ly injured o r kill ed when an airbag
inflates .
- Never let children ride un restrained or im­
prope rly restrained in the veh icle. Adjust the
fro nt sea ts properly.
-
Airb ag sys tem
-Never ride with the back rest recl ined.
-Always sit as fa r as possible from the steer-
ing wheel o r the instrument panel
c::> page 132.
- Always sit upright with your back against
the backrest of your seat.
- Never p lace your feet on the instrument
panel or on the seat. Always keep both feet
on the floor in front of the seat to help pre­
vent ser ious injuries to the legs and hips if
the airbag inflates.
- Never recline the front passenger's seat to transpo rt objects. Items can also move into
the area of the s ide a irbag or the front air­
bag during braking or in a sudden maneu­
ver. Objects nea r the airbags can become
p roje ct il es and cause injury when an airbag
inflates.
A WARNING
A irbags tha t h ave deployed in a cr ash m ust be
r e p laced.
- Use o nly orig inal equipment airbags ap ­
p roved by A udi a nd insta lled by a trained
technici an who has the necessary tools and
diagnostic equipment to properly replace
any airbag in yo ur vehicle and assu re system
effect iveness in a crash.
- Never permit salvaged or recycled airbags to
be installed in you r vehicle .
Child restraints on the front seat - some
important things to know
.,. Be sure to read the important i nformat ion and
head the WARNINGS for important deta ils
about ch ildren and Advanced A irbags
c::> page 168 .
Even though your veh icle is equipped wit h an Ad ­
vanced Airbag System, make certa in that a ll chil­
dre n, espec ia lly those 1 2 yea rs and yo unger, al­
ways r ide in the back se at prope rly res train ed fo r
their age and size. The ai rbag on t he p asse nger
s ide makes t he fron t seat a potentia lly dange rous
place for a child to ride. The front seat is not the
sa fest p lace for a child in a forward-facing child .,.
149

Airbag syste m
Front airbags
Description of front airbags
The airbag system can provide supplemental
protection to properly restrained front seat occu­
pants.
Fig. 164 Location of driver airbag: in steering whee l
Fig. 165 Location of front passenger's airbag: in the in­
strument panel
Your veh icle is equipped with an "Advanced Air­
bag System" in compliance with Un ited States
Federa l Motor Vehicle Safety Standard
(FMVSS) 208, as well as Canada Motor Vehicle
Safety Sta ndard (CMVSS) 208 as app licable at
the time your vehicle was manufactured. The
safety belts for the seats have "pretensioners"
that help to take slack out of the belt system.
The pretensioners are also activated by the elec­
tronic control unit for the airbag system.
The front safety be lts also have load limiters to
help reduce the forces applied to the body in a
crash.
The airbag for the driver is in the steering wheel
hub<=>
fig . 164 and the airbag for the front pas­
senger is in the instrument panel
<=>fig. 165. The
general location of the airbags is marked "AIR­
BAG".
152
There is a lot you need to know about the airbags
in your vehicle . We urge you to read the detailed
i nformation about airbags, safety belts and child
safety in this and the other chapters that make
up the owner's literature. Please be sure to heed
the WARNINGS -they are extremely important
for your safety and the safety of your passengers,
especially infants and small children .
.&_ WARNING -
Never rely on airbags alone for prote ct ion.
- Even when they deploy, airbags provide only supp lemental protection.
- Airbag work most effectively when used with properly worn safety be lts.
- Therefore, always wear your safety belts and make sure that everybody in your veh icle is
properly restrained .
.&_ WARNING
A person on the front passenger seat, espe­
cially infants and small ch ildren, wi ll receive
serious inju ries and can even be killed by be­
ing too close to the airbag when it inf lates.
- Although the Advanced Airbag System in
-
your vehicle is designed to turn off the front passenger airbag i f an infant or a small child
is on the front passenger seat, nobody can
absolutely guarantee that deployment un­
der these special conditions is impossible in
all conceivable situations that may happen
during the useful life of your vehicle.
- The Advanced Airbag System can deploy in
accordance with the "low risk" option under
the U.S. Federal Standard if a child that is
heav ier than the typical one-year old ch ild is
on the front passenger seat and the other
conditions for airbag deployment are met.
- Accident statistics have shown that children are generally safer in the rear seat area than
in the front seat ing pos ition.
- For their own safety, all chi ld ren, especially
12 years and younger, should always ride in
the back proper ly restrained for their age
and size .

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A WARNING
Child ren on the front seat of any car even w ith
Advanced Airbags can be seriously injured or
even killed when an airbag inflates. A child in
a rearward-facing child safety seat installed
on the front passenger seat will be seriously
injured and can be killed if the front airbag in­
flates.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the ch ild safety seat and child
against the backrest, center armrest, or
door.
- Always install rear-facing child safety seats
on the rear seat.
- If you must install a rearward fac ing ch ild
safety seat on the front passenger seat in
exceptiona l circumstances and the
PA SSEN ­
G ER AIR BAG OFF
light does not come on
and stay on, immediately insta ll the rear­
facing child safety seat in a rear seating po­
sition and have the airbag system inspected
immediately by your Audi dealer.
A WARNING
If, in exceptional circumstances, you must in­
stall a forward-facing chi ld restraint on the
front passenger's seat :
- Always make sure the forward-fac ing seat
has been designed and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and s ide a irbag .
- Always follow the manufacturer's instruc­
tions prov ided with the ch ild safety seat or
carrier.
- Always move the front passenger seat to
the highest position in the up and down ad­
justment range and move it back to the
rea rmost position in the seat's fore and aft
adjustment range, as fa r away from the air­
bag as possib le, before insta lling the for­
ward-facing child restraint .
- Always ma ke sure that the safety bel t upper
anchorage is behind the child restraint and
not next to or in front of the chi ld restraint
so that the safety belt will be properly posi­
tioned.
Ch ild safety
-Always make sure that the PA SSENGER AIR
BAG OFF
light comes on and stays on all the
time whenever the ignition is switched on.
@ Tips
A lways replace child restraints that were in­
stalled in a vehicle during a crash. Damage to
a child restraint that is not v is ible could cause
i t to fai l in another collision situat ion.
Advanced front airbag system and children
Your vehicle is equipped with a front "Advanced
Airbag System" in compliance with Un ited States
Federal Motor Vehicle Safety Standa rd (FMVSS)
208, as we ll as Canada Moto r Vehicle Safety
Standard (CMVSS) 208 as app licab le at the time
your vehicle was manufactured.
T he Advanced A irbag system in you r vehicle has
been certified to meet the "low-risk" require­
ments fo r 3- and 6-year old ch ildren on the pas­
senger side and sma ll adu lts on the driver side.
T he low risk deployment criter ia are intended to
reduce the risk of injury t hrough interaction with
the airbag that can occur, for example, by being
too close to the steering wheel and instrument
panel when the airbag inflates . In addition, the
system has been cert ified to comply with the
"supp ression" requirements of the Safety Stand­
ard, to turn off the front a irbag fo r infants up to
12 months who are restrained on the front pas­
senger seat in c hild rest raints t hat are lis ted in
the Standard.
E ven though your veh icle is eq uipped wit h an Ad­
vanced Airbag system, all ch ild ren, especially
those 12 yea rs and younger, should a lways ride
in the back seat proper ly restrained for their age
and size . The airbag on the passenger side makes
the front seat a potentially dangerous p lace for a
child to ride. The front seat is not the safest place
for a child in a forward-fac ing ch ild safety seat. It
can be a very dangerous place fo r an infant or a
larger ch ild in a rearward-facing seat .
169

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@ Tips
-ABS and AS R on ly work correctly when a ll
fo ur whee ls are e quipped w ith identical
tires. Different tire sizes can lead to a reduc­
tion in eng ine power.
Switching on/off
Intelligent Technology
- You may hear noises when the sy stems de ­
scribed a re worki ng .
- Whe n in st alling a factory -s up plied roo f ra ck
system o n the roof ra iling, the ESC wi ll
adapt itself to a different center of grav ity .
ESC turns on automatically when you start the engine.
Fig . 184 Versio n A: Lower cente r console,~ OFF button
The follow ing s ituations ar e except ions where i t
may be usef ul to sw itch on offroad mode to allow
the w heels to sp in:
- Rocking the vehicle to free it when it is stuck
- Driv ing i n deep snow or on loose ground
Offroad mode on
Fig. 185 Version B : Upper center console,~ OFF butto n
-Dr iv ing with snow chains
- Dr iv ing down hill while braking on loose g round
- Dr iving on rough terra in when much of t he car's
weight is lifted off the wheels (axle artic ula­
t ion)
Offroad mode off
Behavior
The ESC and ASR stabilization functions The fu ll stabilization function of the ESC
are limited
¢ ,&. .
Operation Press the 1.$ OFF I button.
Indicator Ii) tu rns on.
lights
Driver mes- St abilization control (ESC ): Offroad.
sages Warning! Restricted stability
A WARNING
- Yo u should only sw itch offroad mode o n if
yo ur dr iv ing abilit ies a nd road cond it io ns
permit.
- The stabilization function is limited when
offroad mo de is switched on. The dr iving
w he els co uld s pin and the v eh icle cou ld
swe rve, es peci ally on s lick or slipp ery roa d
s ur fac es. and ASR
is ava ilable again.
P ress the
I!.! OFFI but ton again.
II turns off.
Stabilization control (ESC ): On
(D Tips
Offroad mode cannot be switched on whe n
adaptive c ruise contro l* is switched on.
187

Bead separa tion
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 manufac­
turer for a tire of a designated size that has not been driven for
more than a couple of miles (kilo­
meters) at low speeds in the
three hour period before the tire
pressure is measured or adjusted .
Curb weight
means the weight of a motor ve­
hicle with standard equipment in­
cluding the maximum capac ity of
fuel, oi l, and coolant, a ir condi­
tioning and add itional weight of
optional equipment.
E xtra load tire
means a tire designed to operate
at higher loads and at h igher in ­
flation pressures than the corre­ sponding standard tire. Extra load
tires may be identified as "XL",
g; "xl", "E XTRA LOAD" , or "RF" on
-~ the sidewal l.
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Wheels
Gross Axle Weight Rating
(" GAWR")
means the load-carrying capacity
of a single axle system, measured
at the tire -ground interfaces.
Gross Vehicle Weight Rating
(" GVWR ")
means the max imum total loaded
weight of the vehicle.
Groove
means the space between two ad­
jacent tread ribs .
Load rating (code)
means the maxim um load that a
tire is rated to carry for a given in­
flat ion pressure . You may not f ind
this informat ion on all tires be ­
cause it is not required by law.
Maximum load rating
means the load rating for a tire at
the maximum permissible infla­
tion pressure for that tire .
Maximum loaded vehicle
weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity we ight , and
(d) Production options we ight
233

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Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim di amet er
means nominal diameter of the
bead seat. If you change your
wheel size, you will have to pur­
chase new tires to match the new
rim diameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
rim flanges.
Sidewall
means that portion of a tire be­
tween the tread and bead.
Speed rating (letter code )
means the speed at wh ich a tire is
designed to be driven for extend­
ed periods of time . The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h)
¢ table
on page 231.
You may not find
this information on all tires be­
cause it is not required by law.
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the
Wheels
maximum permissible road
speeds
¢ A in Winter tires on
page 245.
T ire pressure mon itoring
system *
means a system that detects
when one or more of a vehicle's
tires are underinflated and illumi­
nates a low tire pressure warning
telltale.
T read
means that portion 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
principal grooves designed to give
a visual indication of the degrees
of wear of the tread. See
¢ page 239, Treadwear indicator
for more information on measur­
ing tire wear .
Uniform Tire Quality Grading
is a tire information system devel­
oped by the United States Nation­
a l Highway Traffic Safety Admin­
istration (NHTSA) that is designed
to help buyers make relative
235
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for the number of seating posi­
tions. Refer to the table ¢
table
on page 242
for the number of
people that correspond to the ve­
hicle normal load.
New tires or wheels
Audi recommends having all work on tires or wheels performed by
an author ized Audi dealer or au­
thorized Audi Service Facility.
These facilities have the proper
knowledge and are equipped with
the required tools and replace­
ment parts.
.,.New tires do not yet have the
optimum gripping properties. Drive carefully and at moderate
speeds for the first 350 miles
(500 km) with new tires.
.,.Use tires of the same construc­
tion, size (rolling circumference)
and as close to the same tread
pattern as possible on all four
wheels.
.,.Do not replace tires individually .
At least replace both tires on the
same axle at the same time.
.,.Audi recommends that you use
Audi Original Tires. If you would
like to use different tires, please
note that the tires may perform
Wheels
differently even if they are the
same size¢.&,. .
.,. If you would like to equip your
vehicle with a tire/rim combina­
tion that is different from what
was installed at the factory, con­
sult with an authorized Audi
dealer or authorized Audi Service
Facility before making a pur­
chase¢ .&,..
The spare tire* is different from
the regular tires installed on the
vehicle -for example, if winter
tires or wide tires are installed -
so only use the spare tire* tempo­
rarily in case of emergency and
drive carefully while it is in use . It
should be replaced with a regular
tire as soon as possible.
On
all wheel drive vehicles, all
four wheels must be equipped
with tires that are the same brand
and have the same construction
and tread pattern so that the
drive system is not damaged by different tire speeds. For this rea­
son, in case of emergency, only
use a spare tire* that is the same
circumference as the regular
tires. .,.
237

Wheels
&,. WARNING -
-Only use tire/rim combina­
tions and suitable wheel bolts
that have been approved by
Audi. Otherwise, damage to
the vehicle and an accident could result.
-For technical reasons, it is not
possible to use tires from oth­
er vehicles -in some cases,
you cannot even use tires from
the same vehicle model.
-Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif­
ferent construction can differ
greatly even if they are the
same size. If there is not enough clearance, the tires or
the vehicle can be damaged and this can reduce driving
safety and increase the risk of
an accident.
-Only use tires that are more
than six years old when abso­
lutely necessary and drive
carefully when doing so.
-Do not use run-flat tires on
your vehicle. Using them when
238
not permitted can lead to ve­
hicle damage or accidents.
-If you install wheel covers on the vehicle, make sure they al­low enough air circulation to
cool the brake system. If they do not, this could increase the
risk of an accident.
Tire wear/damage
Fig. 203 Tire profile: treadwear indica­
tor
Tire wear
Check the tires regularly for wear.
-Inflation pressure that is too low
or high can increase tire wear
considerably.
-Dr iving quickly through curves,
rapid acceleration and heavy
braking increase tire wear.
-Have an authorized Audi dealer
or authorized Audi Service Facili­
ty chec k the wheel alignment if
there is unusual wear.
-Have the wheels rebalanced if an imbalance is causing noticeable
i.

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and follow the important safe­
ty precautions inc:::>
page 242,
Tires and vehicle load limits .
-The tire must flex more if the
tire pressure is too low or if
the vehicle speed or load are
too high . This heats the tire up
too much. This increases the risk of an accident because it
can cause the tire to burst and result in loss of vehicle con­
trol.
- Incorrect tire pressure in­
creases tire wear and has a negative effect on driving and
Tire pressure table
Please note that the information
contained in the following table
was correct at the time of print­ ing, and the information is sub­
ject to change . If there are differ­
ences between this information
and the tire pressures specified
on the label on the driver's side B­
pillar, always follow the specifica­
tion on the B-pillar label
c:::> page 240, fig. 204.
Wheels
braking behavior, which in ­
creases the risk of an accident.
Replace lost valve caps to re­
duce the risk of damage to the
tire valves.
Tire pressure that is too low in­ creases fuel consumption.
Audi recommends using the
tire pressure specified for a
normal load
c:::> table on
page 242
or for a full load
when the vehicle is partially
loaded .
Make sure that the tire designa­
tion on your tire matches the des­
ignation on the tire pressure label
and the tire pressure table .
The following table lists recom ­
mended tire pressures in cold
tires according to the load and
the size of the tires installed .
241

Wheels
damage the ti res, and the chains w ill quickly be
destroyed .
A WARNING
Using incorrect snow chains or insta lling snow
chains incorrectly can result in loss of vehicle
control, which increases the risk of an acc i­
dent .
(D Note
Snow chains can damage the rims/wheel cov ­
ers * if the chains come into d irect contact
w ith them. Remove the wheel covers* first .
Use coated snow chains.
(D Tips
When using snow cha ins, it may be useful to
sw itch the off road mode on ¢
page 187.
Low aspect ratio tires
Your Audi is factory -equipped with low aspect ra­
tio tires. These t ires have been tho roughly tested
a nd been se lected specifically fo r yo ur model fo r
thei r supe rb per fo rman ce , road feel and handling
un der a va riety of d riving conditions . As k yo ur au­
thor ized Audi dealer for mo re details .
T he low aspect ratio of these t ires is in dicated by
a nume ral of
55 or less in the tire's size desig na­
tion . The numera l rep resents the rat io o f th e
tire's sidewall he ight in relat ion to its tread width
expressed in pe rcentage. Conventional tires have
a height/w idt h rat io o f 60 o r more .
The performance of low-aspect -ra tio tires i s par ­
ticularly sensitive to improper inflation pres­
sure . It is therefore important that low aspect
ratio tires are inflated to the specified pressure
and that the inflation pressure is regularly
checked and maintained . Tire pressures should
be checked at least once a month and always
before a long trip ¢
page 240.
What you can do to avoid tire and rim
damage
Low aspect rat io tires can be damaged more easi­
ly by impact with potholes, cu rbs, gullies or
246
ridges on the road, particularly if the tire is un ­
derinflated.
I n orde r to mi nimize the occur rence o f imp act
dam age to the tires o f yo ur vehicle, we recom­
mend that you observe the following preca u­
tions:
- Always m aintain reco mmende d in fla tion pres­
sures. Check yo ur tir e pressure eve ry 2,0 00
m iles (3,00 0 km) and add air if necessary .
- Dr ive c arefully on ro ads w ith potholes, deep
gu llies o r ridges . The impact from dr iving
through or over such obstacles can damage
your tires. Impact with a curb may a lso ca use
damage to your t ires.
- After any impact, immediate ly inspect you r
tires or have them inspected by the nearest au­
thorized Aud i dealer. Replace a damaged tire as
soon as possible.
- Inspect your tires every 2,000 m iles (3,000 km)
for damage and wear . Damage is not always
easy to see . Damage can lead to loss of a ir and
unde rinflation, w hich could event ua lly cause
tire fa ilure . If you believe that a tire may have
be en damaged, replace the tire as soon as pos­
sible .
- These tires may wear mo re quickly than o thers .
- Please also remember that, while these tires delive r responsive hand ling, they may ride less
comfortab ly and make mo re noise than o ther
choi ces.
Reduced performance in winter/cold season
conditions
A ll tires are des igned for certain purposes. The
l ow aspect ratio, ultra h igh performance tires
o rigin ally ins talle d on your veh icle are inten ded
for m aximum dry and wet road per forma nce and
handling . They a re not suitable for co ld, snowy or
i cy weather conditions . If you drive under those
c ir cumstances, you should equip yo ur vehicle
with all-season o r winter tires, which offer better
tract ion under t hose conditions. We suggest you
u se the recommended s now or all-season tires
spec ified for your vehicle, o r the ir equiva lent .
Refer to¢
page 245 for more detailed informa­
tion regard ing winter tires.