change time AUDI Q7 2012 Owner´s Manual

2 76 Tires and wheels
M aximum loaded vehicle weight
means t he sum of:
(a) Curb weight
(b) Accessory weight
( c ) Vehicle capacity we ight, and
(d) P rod uction options weight
Maximum (permissible) inflation pressure
means t he max imum co ld inflation pressu re
to which a tire may be in flate d. Also called
"maxim um inflation p ress ure."
Normal occupant weight
means 150 lbs. (68 kilog rams) times the
nu mbe r of o ccupants seated in t he vehicle up
to the tota l sea ting capaci ty of yo ur vehicle .
Occupant distribution means dist ribution of occupants in a veh icle .
Outer diameter means t he overa ll diameter of a n inf lated new
tire.
Overall width
means t he linear dis tan ce between the ex ter i­
ors o f th e sidewalls of an inflated tire, in cl ud­
ing e levations due to labeling, decorations, or
p rotective bands o r ribs.
Ply
mea ns a laye r of r ubber-coate d parall el c ords.
Production options weight
means t he comb ined we ight of those installed
regular produc tion options weigh ing ove r 5
l bs . (2 .3 kg) in excess of t hose standard items
which they repla ce, no t previously considered
in cur b weight o r acc essory weig ht, incl uding
h eavy duty brakes, r ide leve le rs, roof ra ck,
h eavy duty ba ttery, a nd specia l trim .
Radial ply tire
means a pneumatic t ire in which the p ly co rds
that ex tend to the beads are laid a t sub stan ­
ti ally 9 0 degrees to the ce nt erline o f the
tread . Recommended inflation pressure
see
~
page 2 75, C old tire infla tion pressure.
Reinforced tire
means a t ire design to operate at h igher loads
and at h igher inflation pressures than t he cor­
r espondi ng stan da rd tire. Reinforced tires
may be identifie d as "X L", "xl" , "EX TRA LOAD",
o r "RF " on t he sidewal l.
Rim
means a metal su ppo rt for a tire or a t ire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal d iameter of the bead seat.
If
you change your wheel s ize, you wi ll have to
purchase new tires to match th e new r im di­
ameter .
Rim size designation
means r im diameter and width.
Rim width
means nom inal d ista nce between rim flanges .
Sidewall
means tha t po rtion of a t ire betw ee n t he
t read and bead.
Speed rating (letter code)
means the speed at which a tire is designed to
be driven for extended periods of time. The
r a ti ngs range from 93 mph ( 150 km/h) to
186 mph (298 km/h)
~ page 286 . You may
not fi nd this information o n all ti res because
it is no t re quir ed by law.
T he speed rating letter code, wh ere applica­
ble , is molde d on the tire sidewall a nd indi­
c ates the max imum pe rmissibl e road speeds
~ A in Winter tire s on page 290 .
Tire pressure monitoring system
mea ns a system that detects when o ne or
more of a ve hicle 's tires are unde rinf lated an d
i lluminat es a low tir e pr essure wa rning t ell-
tal e. ..,_

pressure label lists the recommended cold
tire i nflatio 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 2 78 .
-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 294.
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
RI] appears in
the instrument cl uster, s top an d inspect
the tires.
- Incorre ct tire pressure and/or unde rinfla­
t ion can cause 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 can also lead to sud den tire fa il-
Tires an d wheel s 281
ure, including a blowout and sudden de­
flation, ca using loss of veh icle contro l.
- The driver is responsib le for the correct
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 prematurely 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.
•
•

TPMS malfunction indicator is combined with
the low tire pressure tellta le . When the sys·
tern detects a malfunction, the telltale will
flash for approximately one minute and then
remain continuously illuminated. This se·
quence will continue upon subsequent vehicle
start-ups as long as the malfunction ex ists .
When the malfunc tion indicator is illuminat·
ed, the system may not be able to detect or
signal low tire pressure as intended. TPMS
malfunct ions may occur for a variety of rea·
sons, including the installation of replace·
mentor alternate tires or wheels on the vehi·
cle that prevent the TPMS from functioning
properly. Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the re­
p lacement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
-
- -..,
;g
Fig. 242 Display: underinflat io n warning
Fig. 243 Display: Syste m ma lfunct io n
Using the ABS sensors , the tire pressure moni·
toring system compares the tire tread circum·
Tires and wheels 293
ference and vibration characteristics of the in­
dividual tires. If the pressure decreases in one
or more tires, this is indicated in the instru­
ment cluster with a warning symbol
[I] and a
message
c;, fig. 242 . The driver message in the
display goes out after S seconds . The driver
message can be displayed again by pressing
the
ICHECKI button . If only one tire is affect·
ed, the disp lay wi ll indicate its posit ion.
The tire pressure monitoring must be reset via
MMI each time the pressures are adjusted (e.
g. when switching between part ial and fu ll
load pressu re) o r after changing or replacing a
tire on your vehicle
c;, page 294. You can find
the recommended tire pressures for your vehi ·
cle on the label on the driver's door pillar
c;,page 278.
Tire tread circumference and vibration charac·
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tir e has structural damage ,
- the tir e pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
c;,page294 .
Warning symbols
[I] loss of pressure in at least one tire c;, .&, .
Check the tire or tires and replace or repair if
necessary . The indicator light
[I] in the instru·
ment cluster also illum inates
c;, page 14.
Check/correct the pressures of all four tires
and reset TPMS via MMI.
IIQ§S, (Tir e Pressure Monitoring System) Tire
pressure! System malfunction . If llQ§f:1 ap·
pears after switching the ignition on or while
driv ing
c;, fig. 243 and the indicator light [I] in
the instr ument cluster blinks for approxi­
mately one minute and then stays on, there is
a system malfunction . See your authorized
Audi dealer as soon as possible.

It has always been Aud i's policy to contin u­
ously improve i ts prod ucts . Aud i, therefore,
reserves the right to make changes in design
and specifications, and to make additions or
improvements in its prod ucts, witho ut incur­
ring any obligat ion to install them on prod­
ucts previous ly manufactured .
Text, illustrat ions and specifications in t his
manual are based on the most up-to-date in­
formation available at the time of printing.
A ll rights reserved. May not be reprod uced or
trans lated in whole o r in part without the
written consent o f AUDI AG. Spec if icat ions are
subject to change w ithout notice. "Aud
i" , "q uattro" and the four r ings emblem
are regis tered trademarks of AU DI AG .
"Q7'' is
tradema rk of AUDI AG .
Editorial deadlin e: 09 /16 /2011
@ For the sake of the environment
P rinted on envir onmentally friendly pape r
( bl eached without chlorine, recyclable) .
Printed in Germany
© 2011 AUDI AG