inflation pressure AUDI A6 2015 User Guide

Tires and wheels 251
When should I check the tire -Incorrect tire pressure and/ •
pressure? or underinflation can cause • '
The correct tire pressure is es-increased tire wear and can
pecially important at high affect the handling of the
speeds . The pressure should
vehicle and stopping ability.
therefore be checked at least -Incorrect tire pressures
once a month and always be- and/or underinflation can
fore starting a journey. Do not also lead to sudden tire fail-
forget to check the tire pres- ure, including a blowout
sure for the spare wheel and sudden deflation, caus-
¢page 271. ing loss of vehicle control.
-The driver is responsible for
When should I adjust the
the correct tire pressures for ti re pressures?
Adjust the tire pressure to the all tires on the vehicle. The
applicable pressure values
load you are carrying. After
are located on a sticker on
changing a wheel
or replacing
the driver's side B -pillar.
wheels you have to adjust the
-Only when all tires on the
tire pressures on all wheels. In
vehicle are filled to the cor-
addition, you must then store
rect pressure, the tire pres-
the new tire pressures in the
sure monitoring system can
tire pressure monitoring sys-
work correctly.
tern
¢ page 267.
-The use of incorrect tire
.&, WARNING pressure values can lead to
Incorrect tire pressures and/ accidents or other damage.
or underinflation can lead Therefore it is essential that
sudden tire failure, loss of the driver observe the speci-
control, collision, serious per- fied tire pressure values for
sonal injury or even death. the tires and the correct
-When the warning symbol pressures for the function of
M (IJ appears in the instru-the tire pressure monitoring
N
0 ment cluster, stop and in- system. .,. <.J 'SI: ,....,
spect the tires. \!) 1.1'1 ,...., 1.1'1 ,....,

254 Tires and wheels
to carry will prevent the ve­
hicle from handling properly
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
- including the weight of a
trailer hitch and the tongue
weight of a loaded trailer -
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 244,
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 244, 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 .,..

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0 <.J 'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
tires because they meet the highest standard s regarding
safety and driving characteris­
tics when used correctly. Your
authorized Audi dealer will
gladly provide you with more
information.
Tire ply composition and materials used
The number of plies indicates
the number of layers of rubber­
coated fabric in the tire. In gen­
eral, the greater the number of
plies, the more weight a tire
can support. Tire manufactur­
ers also must indicate the ma­
terials in the tire, which include steel, nylon, polyester, and oth­
ers.
Maximum Load Rating
This number indicates the max­
imum load in kilograms and
pounds that can be carried by
the tire.
Tire quality grading for
treadwear, traction, and
temperature resistance
Tread wear, traction and tem­ perature grades¢
page 263.
Tires and wheels 261
Maximum Permissible
Inflation Pressure
This number is the greatest
amount of air pressure that
should ever be put in the tire under normal driving condi­
tions.
A WARNING
- Using incorrect or unmatch­
ed tires and
I or wheels or
improper tire and wheel
combinations can lead to
loss of control, collision and
serious personal injury.
-Always use tires, rims and wheel bolts that meet the specifications of original
factory-installed tires or
other combinations that have been specifically ap­
proved by the vehicle manu­
facturer.
-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
•
•
'

26 6 T ire s and whee ls
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 right
length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the brake system functions
correctly .
In ce rtain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same mode l
~page 294.
_& 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 bolts 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 torq ue fo r the wheel bo lts is
90 ft lb (120 Nm) w ith a toleran ce 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
r atio tires . These tires have been tho roughly
tested and been se lected specifically for 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 de tails .
T he low aspect ratio of these t ires is ind icated
by a numera l of
55 or less in the tire's s ize
designation. The nume ra l represen ts the ra tio
of the tire's sidewall height in relation to its
tread width expressed in percentage . Conven­
tiona l tires have a he ight/width ratio of 60 or
more.
The performance of low- aspect-r atio tires is
p ar ticu la rly s ens iti ve to improper infl ation
p re ss ure. I t is th erefore im portant th at low
as pect ratio tires are inflated to the specified
pressure and that the inflation pressu re is
r e gularl y che cked and mainta ined. Tir e pre s­
su res should be ch ecked at least onc e a
month and alwa ys bef ore a long trip
~ page 249, 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 more no ise than
othe r cho ices .
Reduced perf ormance in winter /cold
season condition s
All t ires are des igned for certain pu rposes.
The low aspect ratio, ultra hig h pe rformance
tires orig inally installed on 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 264 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 267
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 significant 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 inat­
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 .
•
•

268 Tires and wheels
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.
Fig. 200 Display : und erinflatio n warn ing
Fig. 201 Display: Syste m malfunction
Using the ABS sensors , the tire pressure moni­
toring system compares the tire tread circum­
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
[9] and a
message ¢
fig. 200.
The tire pressure monitoring system must be
reset via MMI each time the pressures are ad­
justed (e. g. when switching between partial
and full load pressure) or after changing or re­
placing a tire on your vehicle¢
page 269 . The
TPMS indicator only monitors the tire pres­
sure that you have previously stored. You can
find the recommended tire pressures for your vehicle on the label on driver's side 8-pillar
¢page 244.
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 tire has structural damage,
- th e tire pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
¢page 269.
- the spare tire* is mounted .
Warning symbols
[9] Loss of pressure in at least one tire¢&. .
Check the tire or tires and replace or repair if
necessary. The indicator light
[9] in the instru­
ment cluster also illuminates
¢page 12.
Check/correct the pressures of all four tires
and reset TPMS via MMI.
Ill (Tire Pressure Monitoring System ) Tire
pressure! System malfunction . Iflll appears
after switching the ignition on or while driving
¢
fig. 201 and the indicator light [9] in the in­
strument cluster blinks for approximately one
minute and then stays on, there is a system
malfunction . Attempt to store the correct tire
pressure ¢
page 269. If the indicator light
does not turn off or if it turns on shortly
thereafter, immediately drive your vehicle to
an authorized Audi dealer or authorized repair
facility to have the malfunction corrected.
A WARNING
- If the tire pressure indicator appears in
the instrument cluster display, one or
more of your tires is significantly under­
inflated. Reduce your speed immediately
and avoid any hard steering or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures. In­
flate the tire pressure to the proper pres ­
sure as indicated on the vehicle's tire
pressure label¢
page 244 . Driving on a
significantly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also is likely to
impair the vehicle's handling and stop­
ping ability.
- The driver is responsible for maintaining the correct tire pressures. You must
check the tire pressures regularly. ..,

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,...., ..,., ,....,
_______________________________ I~ n~ d:::: e~x 307
Steering wheel column
Adjusting electrica lly ............ .. .. 73
Adjusting manually ................. 73
Steering wheel with tiptronic ... .. .. .. . 11 1
Steps for determining correct load limit . 254
Stopping the engine .......... .. .. .. .. 75
Storage ... ... ...... ....... ...... ... 59
S tron ic transm ission
Launch Control Program ... .. .. .. .. . 112
S tronic (automatic t ransmission) ... .. . 107
Sunroof .... ... ................ .... . 40
Sun shade Rear window ............. .... .. .. .. 47
Side doors .. ............. .... .. .... 47
Sun visors ... .. ........... .. .. .. .... 47
Symbols
refer to Warning/indicator lights .. .. .. 12
T
Tachome ter . . . . . . . . . . . . . . . . . . . . . 12, 24
T ail lights
Clean ing ... ................. .. ... 210
TO I clean diesel
refer to AdBlue . .......... .. .. .. ... 218
Technical data .......... ...... .... .. 289
T echnica l modifications ..... .. .. .. .. . 295
Temperature d isp lay ........ .. .. .. .. .. 24
Tether anchors ............... .... .. 188
Tether strap ... ........... .. .. .. ... 188
Text iles
Cleaning . .. .... ............. .. .. . 212
T he first 1,000 miles (1,500 km) and after-
wards . .. ... ... ................ .... 200
Three-zone climate control .......... .. 68
Tie-downs 65,133
Tips for the env ironment
Saving fue l . . . . . . . . . . . . . . . . . . . . . . . . 62
tiptronic (automatic transmission) 107, 1 11
T ire pressure .............. .... .. ... 249
Tire pressure monitoring system .. .. .. . 267
Tires . ..... .. .. ... .......... .. .. ... 237
Service life .............. .. .. .. ... 255
Speed rating letter code ..... .. .. .. . 260
Tire manufacturing date ... .. .. .. .. . 259
Tire specifications ........ .. .. .. .. . 259 Tread depth
........ .. .......... .. 255
Uniform tire quality grading ....... .. 263
Winter tires ... .. .. . .. .......... .. 264
T ires and vehicle load limits ....... .. .. 252
Tires and wheels Checking t ire pressure ... ...... .... . 249
Cold tire inflation pressure .......... 244
Dimensions .. .. .. .... ........... .. 257
General notes .. ...... ............. 23 7
Glossary of tire and loading terminolo-
gy ....... .. .... .. . .. .... ...... .. 239
Low aspect ratio tires . .......... .. .. 266
New tires and wheels . ............ . .
Replacing ... .. .. ............... . .
Snow cha ins ... .. ................ .
Tires and veh icle load limits ........ .
Wheel bolts
... .. .. .. .. ...... .....
Winter tires
r · l'f
ire service , e .. .. .... ............ .
Tool s
.... .. .. .. .. ... .. .......... ..
Torn or frayed safety belts ........... .
Towing 257
258
265
252
266
264
255
271
139
Tow truck procedures ........... .... 285
TP MS
T ire pressure mon itoring system ... .. 267
Trailer towing ...... ...... .......... 205
Operating instructions ............. . 205
Parking system ... .... ........... .. 125
T echnical requirements . . . . . . . . 205, 206
T ra ile r towing tips ................. 207
Train (transport ing your veh icle) ...... . 287
T ransmission . ... .. .. . ............ .. 107
T ransmission malfunction (in dicator
light) ...... .. .. .. ................. 112
Transport Canada
Transporting yo ur vehicle ............ .
T read Wear Indicator (TWI) .......... .
T. d np o ometer ... .. ................. .
Wha t does i t mean when DEF appears in 134
287
255 27
the tr ip odometer display? ........... 27
Trunk
refer to Luggage compartment ... .. .. . 63
T ru nk escape handle ............. .. .. 270
Trunk lid
refer to Rear lid ......... ........... 37
Turn signals ... .. .. .. .. ........... .. . 45
Warning/ind icator lights ............ . 23
•
•

308 Index
u
ULSD No. 2 (Diese l fuel) ......... .... . 215
Unfasten ing safety belts .... .. .. .. .. . 141
Unid irectiona l tires ......... .. .. .. .. . 238
Uniform tire quality grading . .. .. .... . 263
Unlock ing
Power locking sw itch ....... ... .. .. ..
36
Remote control . . . . . . . . . . . . . . . . . . . . 34
Using the key .. .......... .. .. .... .. 36
V
Valet park ing . ................ ... .. .. 40
Vanity mirrors ................ ..... .. 47
Vehicle
care/cleaning . ........... .. .. .... .
209
Vehicle control modules ......... .. .. . 192
Vehicle e lectrical system . . . . . . . . . . . . . . 17
Vehicle identification labe l ... .. .. .. .. . 289
Vehicle Identification Number (VIN) ... . 289
Vehicle jack . . . . . . . . . . . . . . . . . . . 271, 275
Vehicle literature . . . . . . . . . . . . . . . . . . . . . S
Vehicle shutt-down ........... .. .... . 202
Vehicle transport .......... .. .. .. .. .
287
Ventilation .. ... .... ...... .. .. .. .. .. 67
Viny l
C leaning ... ................ ..... .
212
w
Warning/indicator lights .......... .. .. 12
Airbag system ............ ... .... .. 19
Anti-lock braking system (ABS) . . . . . . . . 19
Brake system .............. .. .... .. 15
Cruise control . . . . . . . . . . . . . . . . . . . . . . 23
Electromechanical parking brake .. .. .. 16
Electronic power control . . . . . . . . . . . . . 20
Electronic Stabilization Control (ESC) .. . 19
Generator . . . . . . . . . . . . . . . . . . . . . . . . . 1 7
Glow plug system ........ .. .. .... .. 21
Instrument cluster . . . . . . . . . . . . . . . . . . 11
Malfunction Indicator Lamp (MIL) . . . . . 21
Safety belt . . . . . . . . . . . . . . . . . . . . . . . . 17
Turn signals ............. .. .. .. .. .. 23
Warn ing/Ind icator lights
A irbag system . . . . . . . . . . . . . . .
157, 158
PASSENGER AIR BAG OFF ... ... .. .. . 158
Warranty coverages ............. .... 292
Washer reservoir .. ................ . 235
Wear indicator .. .. ... .......... .. .. 255
Weights .... .... .. ............. .... 289
What happens if you wear your safety belt
too loose? ...... .. .. ... ....... .... .
140
What happens to unbe lted occupants? . . 137
What impai rs driving safety? ...... .. .. 127
What should I do after changing a
wheel? ...... ... .. .. ... ....... .... .
251
What should I do after replacing whee ls? 251
Wheel bolts
Torque .. .. .. .. .. .. ........... .. ..
266
Wheels ....... ... .. .............. . 237
Checking tire pressure .......... .. .. 249
Cleaning ...... .. .. ........ ...... . 210
Cold tire inflation pressure ........ .. 244
General notes .. .. ... .......... .. .. 237
G lossary of tire and loading terminolo-
gy ....... .... .. ................ .
239
New tires and whee ls .............. . 257
Tires and vehicle load limits ..... .... 252
When must a safety be lt be replaced? .. 139
When must the airbag system be inspect-
ed? ......... ... .. .. ... ....... .... .
157
When should I adjust the tire pressures? 251
When should I chec k the tire pressures? . 251
Where are lower anchorages located? ... 186
Where can I find the tire pressures for my
car? ....... .... .. ................ .
249
Why safety belts? . . . . . . . . . . . . . . 136, 137
Windows
Cleaning/removing ice .... ...... .. ..
211
defrosting (automatic climate control) . 71
defrosting (climate control) . . . . . . . . . . 69
Windshie ld
Cleaning .. .... .. ............. .....
48
defrosting (automatic climate control) . 71
defrosting (climate control) . . . . . . . . . . 69
Windshie ld washer system .......... .. 48
Washer fluid level ............. .... . 22
Washer reservoir . ............. .... 235
Windsh ie ld wipers
Cleaning . ..... .. .. .............. ..
49
Folding up .... .. ............. ..... 49
Indicator light . .. ............. .. .. . 22