inflation pressure AUDI RS7 SPORTBACK 2015 User Guide

242 Tires and wheels
and increase the risk of the
loss of vehicle control.
-The brakes on a vehicle that
has been overloaded may
not be able to stop the vehi­
cle within a safe distance.
-Tires on a vehicle that has
been overloaded can fail
suddenly, including a blow­
out and sudden deflation,
causing loss of control and a
crash.
-Always make sure that the total load being transported
does not make the vehicle
heavier than the vehicle's
Gross Vehicle Weight Rat­
ing.
Determining correct load
limit
Use the example below to cal­
culate the total weight of the
passengers and luggage or oth­
er things that you plan to trans­
port so that you can make sure
that your vehicle will not be overloaded.
Steps for Determining
Correct Load Limit
1. Locate the statement "THE
COMBINED WEIGHT OF OC- CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX
KG OR XXX LBS" on your ve­
hicle's placard (tire inflation
pressure label)
~ page 233,
fig. 195.
2. Determine the combined
weight of the driver and pas­
sengers that will be riding in
your vehicle.
3. Subtract the combined
weight of the driver and pas­
sengers from
"XXX" kilo­
grams or
"XXX" pounds
shown on the sticker
¢ page 233, fig. 195.
4. The resulting figure equals
the available amount of car­ go and luggage load capaci­
ty. For example, if the
"XXX"
amount equals 1400 lbs.
and there will be five 150
lbs. passengers in your vehi­
cle, the amount of available
cargo and luggage load ca­
pacity is 650 lbs. (1400-750
(5
X 150) = 650 lbs.)
5. Determine the combined weight of luggage and cargo being loaded on the vehicle.
That weight may not safely
exceed the available cargo .,.

Tires and wheels 249
safety and driving characteris- should ever be put in the tire •
tics when used correctly. Your under normal driving condi-• '
authorized Audi dealer will tions.
gladly provide you with more
A WARNING
information.
-Using incorrect or unmatch-
Tire ply composition and ed tires and / or wheels or
materials used improper tire and wheel
The number of plies indicates combinations can lead to
the number of layers of rubber- loss of control, collision and coated fabric in the tire. In gen- serious personal injury.
eral, the greater the number of -Always use tires, rims and
plies, the more weight a tire wheel bolts that meet the
can support. Tire manufactur- specifications of original
ers also must indicate the ma-
factory-installed tires or
terials in the tire, which include other combinations that
steel, nylon, polyester, and oth- have been specifically ap-
ers. proved by the vehicle manu-
Maximum Load Rating
facturer.
-Tires age even if they are
This number indicates the max- not being used and can fail
imum load in kilograms and suddenly, especially at high
pounds that can be carried by speeds. Tires that are more
the tire. than 6 years old can only be
Tire quality grading for used in an emergency and
treadwear, traction, and then with special care and
temperature resistance at lower speeds.
Tread wear, traction and tern- -Never mount used tires on
perature grades¢
page 251. your vehicle if you are not
Maximum Permissible
sure of their "previous histo-
Inflation Pressure ry." Old used tires may have
M been damaged even though N
0:: This number is the greatest <.J
the damage cannot be seen .... 'SI: ,....,
amount of air pressure that \!) 1.1'1 ,...., 1.1'1 ,....,

254 Tire s and wheel s
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed rims. If different rims are fit­
ted, the correct wheel bolts with the r ight
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the brake system funct ions
correctly .
In ce rtain circumstances, you may not use
wheel bolts from a different vehicle -even if it
i s the same mode l
~page 284.
_& WARNING
Improperly tig htened o r maintained whee l
bolts can become loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bolts and the
threads in the wheel hubs clean so the
wheel bolts can turn easily and be prop­
erly t ightened.
- Never grease or oil the wheel bo lts and
the threads in the wheel hubs. They can
become loose while driving if greased or
oiled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the
rim being installed.
- Never use different wheels bolts on your
vehicle.
-Always maintain the correct tighten ing
torque for the wheel bo lts to reduce the
risk of a wheel loss. If the tightening tor­
que of the wheel bolts is too low, they
can loosen and come out when the veh i­
cle is moving. If the tightening torque is
too high, the whee l bolts and threads
can be damaged and the wheel can be­
come loose.
@ Note
The spec ified torque fo r the wheel bo lts is
90 ft lb (120 Nm) w ith a tolerance of± 7,4
ft lb(± 10 Nm). Torque wheel bo lts diago- nally
. After changing a whee l, the torque
must be checked as soon as possible with a
torque wrench -preferably by an author­
i zed Audi dealer or qualified workshop.
Low aspect ratio tires
Your Audi is factory-equ ipped w ith low aspect
ratio tires . These tires have been thoroughly
tested and been selected specifically fo r your
model for their superb perfo rmance, road fee l
and hand ling under a variety of d riving cond i­
tions . As k your au thor 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 numera l represen ts the ratio
of the tire's sidewall height in relation to its
tread width expressed in percentage . Conven­
tiona l tires have a height/width ratio of 60 or
more.
The perf orm ance of low- aspect-r atio tire s is
p ar ticu larly s ensitive to improper infl ati on
press ure . It is t here fore im portant that low
as pect rat io tires are infl ated to the spe cified
pre ssure and that the infl ation pressu re is
r e gularl y che ck e d and mainta in ed. Tire pre s­
su res should b e check ed at least onc e a
month and alwa ys bef ore a long trip
~page 237, Checking tire pressure.
What you can do to a void tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w it h potholes, curbs, gull ies
o r r idges on the road, pa rticularly if the tire is
u nderinfla ted .
In order to minimize the occurrence of impact
damage to the tires of you r vehicle, we recom­
mend that you observe the follow ing p recau­
tions:
- Always ma inta in recommended inflation
pressures. Check your tire pressure eve ry
2,000 miles (3,000 km) and add air if neces­
sary .
- Dr ive carefully on roads with potholes, deep
gullies o r ridges. The impact from dr iv ing ..,.

M N
0:: <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
thro ugh or over such obstacles can damage
your tires. Impact with a curb may a lso
cause damage to your tires .
- After any impact, immediately inspect your
tires or have them inspected by the nearest
authorized Audi dea ler. Replace a damaged
t ire as soon as possible.
- Inspect yo ur tires every 2,000 miles (3,000
km) for damage and wear . Damage is not al­
ways easy to see. Damage can lead to loss of
air and underinflation, wh ich could eventu­
ally cause tire fa ilure . If you be lieve that a
t ire may have been damaged, replace the
t ir e as soo n as possible.
- T hese tires may wear more quickly than oth­
ers .
- Please also remember that, while these tires deliver respons ive handling, they may ride
less comfortably and make mo re no ise than
othe r cho ices .
Reduced performance in winter /cold
season conditions
A ll t ires are des igned for certain pu rposes.
The low aspect ratio, ultra hig h pe rformance
tires orig inally installed o n your veh icle are in ­
tended for maximum dry and wet road per ­
formance and handling . They are not s uitable
for cold, snowy or icy weather conditions. If
you dr ive under those circumstances, you
should equip your vehicle with all-season or
winter tires, which offer better traction under
those cond itions . We suggest you use the rec­
ommended snow or all-season tires specified
fo r your ve hicle, or their equ ivalent.
Refer to¢
page 252 for mo re deta iled infor ­
mat io n regarding winter t ires .
Tire pressure
monitoring system
U) General notes
Each t ire, includ ing the spare (if provided),
should be checked month ly when cold and in­
flated to the inflation pressure recommended by the vehicle manufacture r o n the vehicle
p lacard or tire inflation pressure label. (If yo ur
Tire s an d wheel s 255
vehicle has tires of a different size than the
size indicated on the vehicle placard or tire in­
flat ion pressure labe l, you sho uld determine
the proper t ire inflation press ure for those
tires).
As an added safety feature, your vehicle has been equipped with a tire pressure monitoring
system (TPMS) that illum inates a low tire
pressure telltale when one or more of your
ti res is s ignificant ly under-inflated. According­
ly, when the low tire pressure telltale illumi­
nates, you shou ld stop and check you r tires as
soon as possib le, and inflate them to the
proper pressu re. Driving on a sign ifican tly un­
der -infla ted ti re causes the tire to overhea t
and can lead to tire fai lure . Under-inflation al ­
so reduces fuel efficiency and tire tread life,
and may affect the vehicle 's hand ling and
stopp ing ability.
Please note that the TPMS is not a substitute
for proper tire maintenance, and it is the driv­ er's respons ibility to maintain correct tire
pressure, even if under-inflation has not
reached the level to tr igger illuminat ion of t he
TPMS low tire pressu re tellta le.
Your vehicle has also been equipped with a
TPMS malfunction indicator to ind icate when
the system is not operating properly. The
TPMS ma lfunction indicator is combined with
the low t ire pressure telltale . Whe n the sys­
tem detects a malfunction, the telltale will
flash fo r approximate ly one m inute and then
r em ain continuously illum ina ted . Thi s se­
quence will continue upon s ubsequent vehicle
start-ups as long as the malfunction exists .
When the malfunction indicato r is illum ina t­
ed, the sys tem may no t be ab le to detec t or
s ignal low tire pressure as in tended . TPMS
malfu nctions may occur for a var iety of rea ­
sons, incl uding the insta llation of rep lace­
ment or a lternate tires or wheels on the vehi­
cle that prevent the TPMS from functioning properly. Always check the TPMS malfunction
telltale after rep laci ng one or more tires or
whee ls on your vehicle to ensu re that the re­
placement o r alternate tires and wheels a llow
the TPMS to con tinue to funct ion p ro perly .
•
•

262 What do I do now?
• Switch on the ignition.
Inflating tire
• Move the switch @~ fig. 207 on the elec­
tric a ir pump
ll to posit ion I. After 5 mi­
nutes, tir e pressure must have reached at
least 1.8 bar.
• Switch the electric air pump off -switch in
position
0. If the required tire pressure of at
l east 1.8 bar has not been reached, follow
the instructions in the section
Re-inflating
tire.
Re-inflating tire
• Remove the hose from the valve and pull the
plug out of the socket.
• Drive the vehicle slow ly 33 feet (10 meters)
backward or forward. This helps to distrib­
ute the sealant better.
• Remove the empty inflation bottle and
screw the hose®~
fig. 206 from the elec­
t ric pump directly onto the va lve.
• Insert the plug@~
fig. 206 into the socket
for the cigarette lighter.
• Switch on the ignition.
• Move the switch @~
fig. 207 on the e lec­
tric air pump
ll to position I. After 5 mi­
nutes, tire pressure must have reached at
least 1.8 bar.
• Switch the electric air pump off -switch in
pos it ion
0 . If the requ ired tire pressure of at
least 1.8 bar has not been reached, it is not
poss ible to make a repa ir with the tire seal­
ant. Seek professional assistance.
Disassembling Tire Mobility System
• Remove the hose from the valve and pull the
plug out of the socket.
• Screw the dust cap onto the valve .
• Place the empty sealant bottle back in the
original packaging and clip it in place under
the floor so that no tire sealant can run out
into the vehicle.
• Place the electric air pump in the luggage
compartment for the time being.
1l The electr ic air p ump sho uld never ru n fo r long er than
6 minut es.
• Start driving right away so that the sealant
is distributed in the tire .
A WARNING
=
- Follow the manufacturer 's safety instruc-
tions on the decal for the air pump and
the sealant bottle.
- If a tire pressure of 1.8 bar cannot be
achieved after pumping for 5 minutes,
the t ire is too severely damaged. Do not
continue to dr ive .
- Seek professional ass istance if it is not
possible to repa ir the tire w ith the tir e
sealant.
(D Tips
- Do not operate the electric air pump for
more than 6 minutes without stopping,
otherwise it can overheat . When the air
pump has cooled down, you can continue
to use it.
- If sealant has escaped, allow it to dry,
then you can pee l it off.
Final check
After driving for a short distance, tire pressure must be checked
• After driving for about 10 min utes, stop and
check the tire pressure.
• If tire pressure is sti ll at least 1.3 bar, in­
flate the tire to specif ied pressure (see driv­
er's side B-pillar), drive to the next repair
shop and have the tire and the sealant bot­
tle replaced .
• If tire pressure is less than 1.3 bar, the tire
is too severely damaged . Do not continue to
drive. Seek professional assistance.
A WARNING
If tire pressure is less than 1.3 bar after
driving for 10 minutes, the tire is too se­
verely damaged. Do not continue to drive.
Seek professional ass istance .
-

288 Index
Child restra int system anchors ....... . 179
Ch ild safety .. ................ ... ... 165
Conve rtible locking retracto r .. .. .... . 176
Important safety instructions for u sing
chi ld safety seats ..................
169
Important things to know when driving
with children .... ....... ... .. .... .
165
Tether anchors . . . . . . . . . . . . . . . . . . . . 182
Tether straps . . . . . . . . . . . . . . . . . . . . . 182
Ch ild safety lock
Rear doors ............... ... .... .. 40
Ch ild safety seats ............... ....
17 1
Booster seats . . . . . . . . . . . . . . . . . . . . . 17 4
Conve rtible child seats ............. 172
Convertible locking retractor .. .. .... . 176
How do I properly install a child safety
seat in my vehicle? ......... ... .... .
169
Infant seats .............. ... .... . 171
Installing .... ............. ...... . 176
Installing a child restraint using the
LATCH system .... ..... .... ... ... ..
181
LATCH system ................. .... 181
Lower anchorages ................. 180
Mount ing and releasing the ancho rage
hook .. .. .. ... .......... ...... .. .
181
Safety instructions ............ .... . 169
Unused safety belts on the rear seat .. 171
C igarette lighter . . . . . . . . . . . . . . . . . . . . . 59
C leaning .. ................. .. .... . 201
C limate control (four-zone)
Operation . . . . . . . . . . . . . . . . . . . . . . . . .
70
Clock .. .... ................... ... .. 26
C losing
Rear lid .. ............... ........ ..
37
Sliding/tilting sunroof ....... .. .. .. . . 41
Cold ti re inflation pressure .... ... .... . 233
Com ing home ... .... ...... .. .. .. .. ..
46
Compartments ............ .. .. .. .. .. 60
Compl iance ........................ 285
Consumer Information . . . . . . . . . . 128, 282
Consumption (fue l) ..... ... .. .. .... .. 24
Contact ing NH TSA .................. 128
Controls
Cleaning . .. ..................... . 203 Convenience key
... ... ....... ... ... .. 35
Starting the engine ............ .. .. .
74
Stopping the eng ine (START ENGINE
STOP button) ......................
75
Switching the ignition on ............ 74
Unlocking and locking vehicle ....... .. 35
Convertib le child safety seats . . . . . . . . .
172
Convertib le locking retractor
A ctivating . .... .. ............. ....
178
Deact ivat ing . ................. .. .. 178
Using to secure a child sa fety seat l.76, 178
Coolant
refer to Eng ine coolant ............. 217
Cooling mode (automat ic climate control) 70
Cruise cont ro l
Changing speed .. ... .. ..... ... .. .. . 80
Presetting your speed .. ..... ... .. .. . 80
Switching off ...................... 80
Switching on . . . . . . . . . . . . . . . . . . . . . . .
79
Warning/ind icator lights ............ . 22
(upholder .. .... .. .. ... ..... ... .. .. . 60
Curve light ........ .. .............. .. 96
Cylinder management
refer to Cylinder on demand System .. . 24
Cylinder on demand System . . . . . . . . . . .
24
D
Data recorde r ... .. ............. .... 186
Date d isp lay .. ...... .............. .. 26
Daytime running lights . .. ..... ... .. .. . 44
Declarat ion of compliance
Adaptive cruise control .............
285
Audi side ass ist .. ............. .. .. 285
Cell phone package . . . . . . . . . . . . . . . . 285
Convenience key . ... ... ......... ... 285
E lectronic immobilizer ... .... ... .. .. 285
Garage door opener (Homelink) ...... 285
Remote control key . . . . . . . . . . . . . . . . 285
Tire pressure monitoring system ..... 285
Decorative parts/trim
Cleaning . ..... .. ... .. ..... ... .. .. 203
D EF
What does this mean when it appears in
the tr ip odometer display? ...........
25
Defective light bulb warni ng ......... .. 21