2015 AUDI Q7 four wheel drive

224 Intellig ent technol ogy
roads . If the systems begin acting to sta­
bilize your vehicle, you should immedi­
ately change your speed to match the
road and traff ic conditions. Do not let
the inc reased safety prov ided by these
systems tempt you to take r isks. Doing
so w ill increase the risk of a loss of vehi­
cl e con tro l, coll is ion and serio us personal
injuries.
- Always adapt you r speed to road, traff ic
and weather condit ions. The risk of los­
ing contro l of the veh icle increases when
driv ing too fast, especia lly t hrough
c u rves and on slippery or wet roads, and
when driving too close to vehicles up
ahead. The ESC and its integrated sys­
tems cannot always prevent collisions -
there is still a r isk of accidents!
- Always acce lerate with special care on
even, smooth surfaces such as those that
Switching on/off
are wet or covered with ice and snow.
The drive wheels can spin even w ith
these assistance systems that cannot al­
ways help to reduce the risk of loss of ve­
h icle control.
(D Tips
- ABS and ASR only work correctly when
all four wheels are equipped with identi­
cal tires. D ifferent tire sizes can lead to a
reduction in engine power.
- You may hear noises when the systems
descr ibed are working.
- If the ind icator light
DJ or fil (USA
mode ls)/ ti] (Canada models) appears,
there may be a malfunction
<:;> page 16,
<:;>page 18.
ESC turns on automatically when you start the engine .
,.-------------.,
------------------
Fig. 231 Upper cente r console: f'J OFF button
The follow ing s ituations are exceptions where
it may be useful to switch on offroad mode to
a llow the whee ls to spin:
Offroad mode on
- Rocking the vehicle to free it when it is st uck
- Dr iving in deep snow or on loose ground
- Dr iving with snow chains
- Dr iving on rough terrain when much of the
car's weight is lifted off the whee ls (axle ar­
ticulation)
- Dr iving downh ill wh ile brak ing on loose
ground
Offroad mode off
Beha vior
The ESC and ASR stabilization funct ions The fu ll stab ilization funct ion of the ESC
are limited <:;>,&..
and ASR is availab le agai n.
Operat ion Press the I~ O FFI button . Press the I~ OFFI button again.
Indi ca to r IJ tu rnson. II turns off.
li g ht s
D riv er m es- Stabil izat ion cont rol (ES C): O ffroad. S tabil ization contro l (ESC) : On
sa ges Warning! R estricted st ab ility

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'SI: ,...., \!) ..,.,
,...., ..,., ,....,
(D Note
If there is an electronic malfunction, ser­
votronic
w ill still function like a conven­
tional power steer ing system, providing a
constant steer ing support force that is no
longer proportionate to the vehicle speed.
This is most noticeable when turning the
steer ing whee l at low speeds (for examp le
when parking), -more effo rt will be re­
qui red than usual.
- Be awa re of the different than usual
stee ring response and adjust your stee r­
i ng force accord ingly .
- Have the problem checked and set right
by an Aud i dealer as soon as possible .
(D Tips
-When the engine is runn ing, never hold
the steer ing whee l turned a ll the way to
the right or to the left for longer than 15
seconds. The power s teer ing p ump w ill
overheat the hydraulic fluid if you keep ho lding the steering whee l turned a ll the
way . This is likely to damage the power
steering system .
- If the power steer ing system should fai l
entirely, or if the engine is not running
(for example, while being towed), you
will still be ab le to steer the vehicle .
However,
considerably more effort will
be required to do so .
- If the power steering system should
have a leak, or is not functioning proper­
l y, contact your authorized Aud i dealer
i mmediately.
- The power steering system requires a
spec ially formulated hydraulic fluid . T he
power steer ing reservo ir is the one locat­
ed farthest to the rear on the left side o f
the engine compartment
~ page 258.
The correct fluid leve l in the reservoir is
important for proper functioning of the
power steer ing .
Int ellig ent technolog y 22 7
Driving with your
quattro
With all-wheel drive , all four wheels are driv­
en .
Gener al info rmation
With all-wheel drive, power is distributed to
all four wheels. This happens au toma tically
depending on your driving style and the road
cond it ions at the time . See also
~ page 223.
Winter t i res
When d riving in the winter, your vehicle with
a ll-wheel drive has an advan tage, even with
regular tires. In winter road conditions it may
be advisable to mount winter tires (or all -sea ­
son tires) for improved driveability and brak­
ing: these tires must be mounted on
a ll four
wh eels. See also ~ page 298, Winter tires.
Tire ch ains
Where tire chains are mandatory on certain
roads, this normally also applies to veh icles
with all-wheel drive~
page 299, Snow
chains .
Replacing whee ls/tire s
Vehicles with all-wheel drive must always
have tires of the same s ize . Also avoid tires
with different tread depths . For deta ils see
page ~
page 291, New tires and replacing
tires and wheels.
.8, WARNING
A lways adj ust yo ur dr iv ing to road and t ra f­
fic conditions . Do not let the extra sa fety
afforded by all-wheel drive tempt you into
taking extra risks.
- Altho ugh the a ll-wheel drive is very ef ­
fective, always remember that braking
capacity is limited by tire traction . You
should therefore not drive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
could begin to slide on top of the water
(aquaplaning). If th is should occur, you •
•

Tires and wheels 2 77
Tread separation UTQG information on the tires, •
means pulling away of the molded into the sidewalls. • '
tread from the tire carcass. U.S. DOT Tire Identification
Treadwear indicators (TWI) Number (TIN)
means the projections within
This is the tire's "serial number"
the principal grooves designed It begins with the letters "DOT"
to give a visual indication of the and indicates that the tire
degrees of wear of the tread. meets all federal standards.
See¢
page 289, Tread Wear The next two numbers or let-
Indicator (TWI) for more infor- ters indicate the plant where it
mation on measuring tire wear. was manufactured, and the last
Uniform Tire Quality Grading
four numbers represent the
week and year of manufacture.
is a tire information system de- For example,
veloped by the United States
DOT ... 2214 ...
National Highway Traffic Safety
Administration (NHTSA) that is means that the tire was pro-
designed to help buyers make duced in the 22nd week of
relative comparisons among 2014. The other numbers are
tires. The UTQG is not a safety marketing codes that may or
rating and not a guarantee that may not be used by the tire
a tire will last for a prescribed manufacturer. This information
number of miles (kilometers) or is used to contact consumers if
perform in a certain way. It a tire defect requires a recall.
simply gives tire buyers addi-
Vehicle capacity weight
tional information to combine means the rated cargo and lug-
with other considerations, such gage load plus 1
SO lbs.
as price, brand loyalty and deal- (68 kilograms) times the vehi-
er recommendations. Under cle's total seating capacity as
UTQG, tires are graded by the listed on the label located on
M tire manufacturers in three N the driver's side 8-pillar. 0
...
...J areas: treadwear, traction, and 'SI: ,...., \!) 1.1'1 temperature resistance. The ,...., 1.1'1 ,....,

290 Tires and whee ls
Driving style - Extra care must be taken when
Driving fast around curves, rotating direction-specific
heavy acceleration and hard tires
¢
page 311.
braking increase tire wear. Wheel balancing
Rotating tires for more even
The wheels on new vehicles are
wear ba lanced. However, various sit-
For all four tires on your vehicle uations during everyday driving
to have the same service life, can cause them to become un-
we recommend that the front balanced, resulting in vibra-
and rear tires are rotated ac -tions you can usually feel
cording to the tire manufactur- through the steering wheel.
er's s uggested tire rotation in-
Unbalanced wheels must be re-
tervals . Please remember the
balanced to avoid excessive
following: wear on steering, suspension
-T ire rotation intervals may dif -and tires. A wheel must also be
fer from the vehicle service in· rebalanced when a new tire is
tervals outlined in your War -insta
lled .
ranty
& Maintenance booklet . Incorrect wheel alignment
-The longer one tire is used in
Incorrect wheel alignment can
one location on the vehic le,
cause excessive ti re wear, im-
the more it wears at certain
pairi ng the safety of the vehi-
points; t herefore, we recom-
cle . If t ires show excessive
mend that you fo llow the tire
wear, have the wheel alignment
manufacturer's suggested tire
checked by an authorized Audi
rotation interva ls.
dealer or qualified wo rkshop.
-Vehicles with front-wheel
dr ive experience more t read
All-wheel drive
wear on the front wheels com-
Vehicles with quattro must al -
pared to all-wheel drive (quat- ways have tires of the same
tro) .
size, construction and tread
-Please rotate tires as shown type. For details see
¢ fig. 253.
¢page 227. ...

296 Tires and wheels
sure of their "previous histo-
and sudden deflation and
ry." Old used tires may have loss of control.
been damaged even though -Temperature grades apply
the damage cannot be seen to tires that are properly in-
that can lead to sudden tire flated and not over or un-
failure and loss of vehicle
derinflated.
control. -For technical reasons it is
-All four wheels must be fit-
not always possible to use
ted with radial tires of the wheels from other vehicles -
same type, size (rolling cir- in some cases not even
cumference) and the same wheels from the same vehi-
tread pattern. Driving with cle model.
different tires reduces vehi- -If you install wheel trim
cle handling and can lead to
discs on the vehicle wheels,
a loss of control. make sure that the air flow
-If the spare tire is not the to the brakes is not blocked.
same as the tires that are Reduced airflow to the
mounted on the vehicle -for
brakes can them to over-
example with winter tires -
heat, increasing stopping
only use the spare tire for a distances and causing a col-
short period of time and lision.
drive with extra care. Refit -Run flat tires may only be
the normal road wheel as used on vehicles that were
soon as safely possible. equipped with them at the
-Never drive faster than the
factory. The vehicle must
maximum speed for which have a chassis designed for
the tires on your vehicle are run flat tires. Incorrect use rated because tires that are of run flat tires can lead to
driven faster than their rat-
vehicle damage or acci-
ed speed can fail suddenly. dents. Check with an au-
-Overloading tires cause heat thorized Audi dealer or tire build-up, sudden tire fail- specialist to see if your vehi-
ure, including a blowout cle can be equipped with
..

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'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
run flat tires. If run flat tires
are u sed , they must be in­
stalled on all four wheels. Mixing tire types is not per­
mitted.
(D Note
-For technical reasons, it is not generally possible to
use the wheel rims from
other vehicles. This can hold
true for wheels of the same
vehicle type.
- If the spare tire is different
from the tires that you have mounted on your vehicle
(for example winter tires or
wide profile tires), then use
the spare tire for a short pe­ riod of time only and drive
with extra care. Replace the
flat t ire with the tire match­
ing the others on your vehi­
cle as soon as possible.
- Never drive without the
valve stem cap. The valves
could get damaged .
@) For the sake of the environment
Dispose of old tires in accord­
ance with the local require­ ments.
Tires and wheels
Uniform tire quality grading
- Tread wea r
- Traction AA A B C
- Temperature AB C
Quality g rades ca n be foun d where applicab le
on the t ire s ide wall between t read sho ulder
and maximum section width
c> page 291,
fig. 254 .
For example : Tread wear 200, Traction AA,
Temperat ure A .
All passenge r ca r tir es must con form to Feder ­
a l Safety Requ irements in add ition to these
grades.
Tread wear
T he tread wear g rade is a c omp arati ve rati ng
based on the wear ra te of the tire when tes te d
u nder con tro lled conditions o n a specifie d
government test course .
F o r ex ample , a tire gr aded 1S 0 wo uld wear
one a nd one h alf ( 11/ 2) times as well on the
governmen t course as a ti re g raded 100 .
T he re lative perfo rman ce of tires depe nds
up on the actu al c ondition s of the ir u se, how ­
ever, and m ay depa rt s ignificantly from t he
no rm due to va ria tions i n driving ha bits, se rv ­
ice p ractices and differences in road character­
istics and cl imate.
Traction
T he trac tio n gr ad es, from hig hest to lowes t,
a re AA, A, Ban d
C. Those g rades represe nt the
ti re 's ability to stop on wet pavement as
measured u nder cont rolled conditions on
specified government test surfaces of aspha lt
and concrete. A t ire mar ked C may have poor
traction performance
c> ,&. .
Temperature
The temperature gr ades are A (the highest),
B, and C, represent in g the tire's resistance to
the generation of heat and its ab ility to d issi­
pate heat when tested un der controlled condi­
tions on a specif ied indoo r labo rato ry test
whee l.
297
•
•

298 Tires and wheels
Sustained high temperature can cause the
materia l of the tire to degenerate and reduce
tire life, and excessive temperature can lead
to sudden tire failure<=>,& .
The grade C corresponds to a level of perform­
ance which a ll passenger car tires must meet
under the Federa l Motor Veh icle Safety Stand ­
ard No.
109. Grades Band A represent higher
levels of performance on the laboratory test
wheel than the minimum required by law.
A WARNING
The traction grade assigned to this t ire is
based on stra ight-ahead braking traction
tests, and does not include acceleration,
cornering, hydroplanin g or peak traction
characteristics.
A WARNING ,.,.____
The temperature grade for this tire is es­
tablished for a tire that is properly inflated
and not overloaded. Excessive speed, un­
derinflation, or excessive loading, either
separately or in combination, can cause heat buildup and possible tire fa ilure.
Winter tires
Winter tires can improve vehicle handling on
snow and ice. At temperatures below 45 °F
(7 °C) we recommend changing to winter
tires .
In some heavy snow areas, loca l governments
may require true winter or "snow" tires, those
with very deeply cut tread. These t ires should
only be used in pairs and be installed on all
four wheels. Make sure you purchase snow
tires that are the same size and construct ion
type as the other tires on your ve hicle.
Your veh icle is equipped with all -wheel drive,
this will improve traction during w inter driv­
i ng, even with the standard tires. However, we
strongly recommend that you always equip all
four whee ls on your veh icle w ith correctly fit­
ted winter ti res or all-season tires, when win­
ter road conditions are expected. This a lso im- proves the vehicle's
braking performance and
reduces stopping distances.
Summer tires provide less gr ip on ice and
snow.
Winter tires (snow tires) must always be fitted
on all four wheels.
Ask your authorized Audi dealer or qualified
workshop for perm itted
winter tire sizes . Use
only rad ial winter t ires .
Winter tires lose their effectiveness when the
tread is worn down to a depth of
0.157 inch
(4 mm).
Only drive w ith w inter t ires under winter con ­
ditions. Summer t ires handle better when
there is no snow or ice on the roads and the
temperature is above 45 °F (7 °() .
If you have a flat tire, see notes on spare
wheel<=>
page 291 .
Please always remember that winter tires may
have a lower speed rating than the tires origi­
nally installed on your vehicle at the time it
was manufactured. Please see
<=>page 294,
Speed rating (letter code)
for a listing of the
speed rating letter codes and the maximum
speed at which the tires can be driven .
The speed rating letter code (<=>
page 2 76) is
on the side wall of the t ire
c> page 291.
A WARNING ,.___
Winter tires have maximum speed limits
that may be lower than your vehicle's max­
imum speed. Always know the maximum
speed before driv in g off. Never drive faster
than the speed permitted for your specific
winter tires. This wi ll cause damage to the
tires leading to an accident and serious
personal injury to you and your passen­
gers.
A WARNING
'----
Driving faster than the maximum speed
for which the winter tires on your vehicle were designed can cause t ire failure in­
cluding a blowout and sudden deflation,

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Synchronization
Climat e controls ... .... ... .. .. .. ... 102
Four -zone automatic comfort a ir cond i­
t ioning . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Synchron izing clima te con trol .. .. .. .. .. 95
T
Tac home ter . . . . . . . . . . . . . . . . . . . . . . . . . 11
Ta il lights
C leaning . ................ ...... .. 243
Tank flap Unlocking the fue l filler flap by hand .. 252
TO I clea n diese l
refer to Ad Blue ........... .... .. .. . 252
T echnica l data ................ ... ... 323
Technica l modifications .. ... .. .. .. .. . 329
Temperature Clima te con trols . . . . . . . . . . . . . . . . . . . . 9 7
F ou r-zone au tomati c comfo rt air cond i-
tioning .... .. .. ... . .... ... .. .. ... 101
Setting for the driver's and front pas-
senger 's side . ........... .. .. .. .... 97
Tethe r anchors ............ .... .. .. . 220
T ethe r strap . .... .... ... .. .. .. .. .. . 220
Textiles Cleaning ... .. .. .. .. .... ... .. .. ... 245
The first 1,000 mi les (1 ,500 km) and after-
wards . .... .. ................. .. ... 230
T ie -down r ings ............. ... ... ... 83
Tie -downs . . . . . . . . . . . . . . . . . . . . . . . . . 170
T ips fo r the env ironme nt
Saving fue l . . . . . . . . . . . . . . . . . . . . . . . . 8 7
Using the air condi tioner only when nec-
essary ..... .. .... .. .... ... .. .. ... 100
tiptronic Automatic S hift Lock (ASL) . .. .. .. .. . 14 0
D riving .... ................. .. ... 1 41
E mergency mode . . . . . . . . . . . . . . . . . . 14 3
H ill descent control .... ... .. .. .. .. . 14 2
Kick-down .. .. .... .... ... .. .. .. ... 143
M anual shift program .. ... .. .. .. .. . 1 42
Selecto r lever . ........... .. .. .. ... 139
t iptronic (au tomati c transmission) .. .. . 139
T ire pressure ............... ... ... .. 282
Tire pressure monitoring system . ... .. . 30 1
Loss of air pressure . . . . . . . . . . . . . . . . . 18
Inde x 343
Tires .. ... .. .. .... .. . .. .. ..... ... .. 271
Service life . . . . . . . . . . . . . . . . . . . . . . . 289
•
speed rating letter code ..... ... .. .. 294 •
Tire manufact uring date ............ 293
Tire specifications ................. 293
Tread depth ...... ................ 289
U ni form tire quality grading .... ... .. 297
Win ter tires ...... ...... .......... 298
Tires/Whee ls
Low aspect ratio tires ............... 300
Tire pressure mo nitoring system . . . . . . 18
Tires and vehicle load limits .... ... .. .. 286
T ires and wheels
Checking tire pressu re .......... .. .. 282
Co ld tire infl ation p ress ure ........ .. 278
Dimens ions . ... .. .. . ... ...... ... .. 291
General notes ...... . .. .. ..... ... .. 271
G lossary of tire and loading terminolo-
gy ....... .. .. .. .... ............. 273
New t ires and wheels ........... .... 291
Rep lacing . .. .. .. .... ... .... .... .. 292
Snow cha ins ...... ...... .......... 299
T ires and veh icle load limits ......... 286
Whee l bolts . .. .. .... ........... .. 299
Win ter tire s ... .. .. ............... 298
Tire service life .. .. ... ... ...... ..... 289
Too ls . ... .. .. .... ... .. .. ..... ... .. 304
T o rn o r frayed safety belts 176
Towing Front eye let . .. .. ................. 320
Rea r eyelet .. .. .. .. ... ....... ..... 320
T ow t ruck procedu res ... ....... .... . 319
TPMS Tire pressure monitoring system ... .. 301
T ra ile r tow ing . .. .. ............... .. 238
Operating instr uctions .. ..... ... .. .. 239
Pa rking systems .... . .. .. ..... ... .. 155
Technical requirements . . . . . . . . 238, 240
Tongue load . .. .. ................. 239
Trai ler towing tips ................. 240
T rai ler turn signal assembly
Warning/indicator lights ..... ... .. .. . 17
T ransmission .. .... .... .... ... .... .. 139
Malfunction ( indica to r li ght) ....... .. 143
Transport Canada .. ................. 171
T read Wear Indicator (TWI) .... ... .. .. 289