2014 AUDI Q7 brake

& WARNING
Overloading a vehicle can cause loss of ve­
hicle control, a crash or other accident, se­
rious personal injury, and even death .
- Carrying more weight than yo ur vehicle
was designed to carry will prevent the
vehicle from handling properly and in­ crease the risk of a loss of veh icle con­
trol.
- The brakes on a veh icle that has been
overloaded may not be able to stop the
vehicle within a safe distance .
- Tires on a vehicle that has been overload­
ed can fail suddenly causing loss of con­
tro l and a crash .
- Always make sure that the tota l load be­
ing transported -including the we ight of
a tra ile r hi tch and the tongue weight of a
loaded trailer -does not make the veh i­
cle heav ier than the veh icle's Gross Vehi­
cl e Weight Rating.
& WARNING
- Incorre ct tire pressures and/or underin­
fla tion can lead to a serious o r fatal acci­
dent.
- Incorrect tire pressures and/or underin­
flation cause increased tire wear and can
affect the handling of the vehicle .
- Incorre ct tire pressures and/or underin­
fla tion can also lead to sudden tire fa il­
ure, incl uding a blowo ut and sudden de­
flation, causing loss of vehicle control.
Checking tire pressure
-
The correct tire pressure for the tires original ­
ly installed on your vehicle is listed on the tire
pressure label located on driver's side 8-pil­ lar.
The recommended tire pressures are on the
tire pressure label and in the tab le
c:::> page 277, Cold tire inflation pressure .Th is
means that the pressure must be checked and
adjusted when the tire has not been driven for more than a couple of m iles (kilometers) at
low speeds during the p revious three hours .
Tires an d wheel s 2 79
Air in the tires expands when the tire heats up
as a result of internal friction as it flexes in
u se . The tire pressure is h igher when the tire
has warmed up than when it is "cold."
It is the inflation pressure in a "co ld" t ire that
counts . The refore, you should never let air o ut
of a warm tire to match "Cold t ire in flat ion
pressure" recommendat ions ¢
page 277 . The
tires wo uld then be underinf lated and could
fail suddenly .
The t ire pressure label on your Audi lists the
recommended co ld tire inflation pressures at
maximum capacity for the new, orig inal
equipment tires that were on your ve hicle at
the time it was ma nufactured . For the loca­
tion of the labe l
¢page 277, fig . 249 .
Most tires lose air naturally over t ime . They
can a lso lose some air if you drive over a pot ­
hole or hit a curb while park ing.
It is usually
not poss ible to see whethe r the rad ia l tires
u sed today are under inflated just by loo kin g
at them.
T herefo re, be su re to check t ire pressu res at
l east once a mo nth and a lways befo re go ing
o n a long tr ip. Ma ke s ure to ta ke t he number
of peop le and the amount of luggage in to ac­
count when ad justing tire pressu re for a trip -
even one that yo u wo uld not conside r to be
"long." See¢
page 281, Tires and vehicle
load limits
for more important information .
A lways use an acc ura te tire pressu re ga uge
when checking and adj usting inf lation pres ­
s ur es . Check a ll of the tires and be sure not to
forget the spare tire. If the pressure in any t ire
is too high when the tire is "cold," let a ir o ut
of the t ire s low ly w ith the edge of the tire
gauge and keep checking the pressure until
yo u reach the pressure that is correct for the
load (passengers and luggage) and k ind of
driv ing you plan to do.
If the pressure in any tire is too low, note the
difference between the pressure i n the cold
t ir e and the pressu re you need and add the air
t h at you need to reach the cor re ct pressure for
the ve hicle load (passengers and luggage) for
the tires on your vehi cle as listed on the on •
•

282 Tires and wheels
-The brakes on a vehicle that has been
overloaded may not be able to stop the
vehicle within a safe distance.
- Tires on a vehicle that has been overload­
ed can fail suddenly, including a blowout
and sudden deflation, causing loss of
control and a crash.
- Always make sure that the total load be­
ing transported -including the weight of
a trailer hitch and the tongue weight of a
loaded trailer -does not make the vehi­
cle heavier than the vehicle's Gross Vehi­
cle Weight Rating.
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 vehi­
cle's placard (tire inflation pressure label)
¢ page 2 77,
fig. 249.
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 277, fig. 249.
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. (1400-7 50
(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
and luggage load capacity
calculated in Step 4.
6. If your vehicle will be towing
a trailer, load from your trail­
er will be transferred to your
vehicle. Consult this manual
to determine how this re­ duces the available cargo
and luggage load capacity of
your vehicle. ..,

284 Tires and wheels
All-wheel drive
Vehicles with quattro must always have tires
of the same size , construction and tread type.
For details see Qpage 228.
~ WARNING
Sudden tire failure can lead to loss of con­
trol, a crash and serious persona l injury!
- Never drive a vehicle when the tread on
any tire is worn down to the wear indica­
tors.
- Worn tires are a safety hazard, they do
not grip well on wet roads and increase
your risk of "hydroplaning" and loss of
control.
- Always keep chemicals that can cause
tire damage , such as grease, oil, gasoline
and brake fluid away from tires .
- 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 a re not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
New tires and replacing tires and wheels
New tires and wheels have to be broken in .
Fig. 253 Tir e specificat ion c odes on t he s idewall o f a
t ire
No. Description
@ Nominal width of tire in millimeters
® Ratio of height to width (aspect ratio)
© Radial
® Rim diameter code
® Load index and speed rating
(J) U.S. DOT tire identification number
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and materials
used
@ Maximum load rat ing
@ Treadwear, traction and temperature
grades
@ Maximum permissible inflation pres-
sure
T he tires and rims are essential parts of the
vehicle 's design . The tires and rims approved
by Audi are spec ially matched to the charac­
teristics of the vehicle and can make a major .,..

-All four wheels must be fitted with radial
tires of the same type, size (rolling cir­
cumference) and the same tread pattern .
Driving with different tires reduces vehi­
cle handling and can lead to a loss of
control.
- If the spare tire is not the same as the
tires that are mounted on the vehicle -
for example with winter tires -only use
the spare tire for a short period of time and drive with extra care. Refit the nor­
mal road wheel as soon as safely possi­
ble.
- Never drive faster than the maximum
speed for which the tires on your vehicle
are rated because tires that are driven
faster than their rated speed can fail
suddenly.
- Overloading tires cause heat build-up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- Temperature grades apply to tires that
are properly inflated and not over or un­
derinflated .
- For technical reasons it is not always
possible to use wheels from other
vehicles -in some cases not even wheels
from the same vehicle model.
- If you install wheel trim discs on the ve­
hicle wheels, make sure that the air flow
to the brakes is not blocked. Reduced air­
flow to the brakes can them to overheat,
increasing stopping distances and caus­
ing a collision.
- Run flat tires may only be used on
vehicles that were equipped with them at the factory. The vehicle must have a
chassis designed for run flat tires. Incor­
rect use of run flat tires can lead to vehi­
cle damage or accidents. Check with an
authorized Audi dealer or tire specialist
to see if your vehicle can be equipped
with run flat tires. If run flat tires are
used, they must be installed on all four
wheels . Mixing tire types is not permit­
ted.
Tires and wheels 287
@ Note
- For technical reasons, it is not generally
possible to use the wheel rims from oth­
er 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 ve­
hicle (for example winter tires or wide
profile tires), then use the spare tire for a
short period of time only and drive with
extra care. Replace the flat tire with the
tire matching the others on your vehicle
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 accordance with the
local requirements.
Uniform tire quality grading
- Tread wear
- Traction AA A B C
- Temperature ABC
Quality grades can be found where applicable
on the tire side wall between tread shoulder
and maximum section width
¢ page 284,
fig. 253.
For example: Tread wear 200, Traction AA,
Temperature A.
All passenger car tires must conform to Feder­
al Safety Requirements in addition to these
grades.
Tread wear
The tread wear grade is a comparative rating
based on the wear rate of the tire when tested
under controlled conditions on a specified
government test course.
For example, a tire graded 1S0 would wear
one and one half (1 1/2) times as well on the
government course as a tire graded 100. •
•

29 0 T ire s and wheel s
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow cha in manufacturer when doing so .
- If the Adaptive Air Suspension* should
malfunction, do not mount or use snow
chains because the vehicle will be ex­
tremely low. If you do dr ive with snow
chains on while the vehicle is at this lev­
el, the snow chains might severely dam­
age the wheelhouse and other parts of
the veh icle.
(!) Tips
Where snow cha ins are mandatory oncer­
tain roads, this normally also applies to
veh icles with all-whee l dr ive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of wheel bolts is matched to the
factory installed r ims. If different rims are fit ­
ted, the correct wheel bolts with the r ight
l ength and correctly shaped bolt heads must
be used. This ensures t hat wheels a re fitted
secure ly and that the brake system f unctions
correctly .
I n ce rtain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same mode l
<=?page 318.
.&_ WARNING
Improperly tightened o r maintained wheel
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 w hile driving if greased or
oiled, even if tightened to the specified
torque. -
On ly use wheel bolts that be long to the
rim being installed .
- Never use different wheels bolts on yo ur
veh icle.
- Always maintain the correct tightening
torque for the whee l bolts to reduce the
risk of a whee l loss. If the tightening tor ­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cle is mov ing. If the tightening torque is
too high, the wheel bolts a nd threads
can be damaged and the whee l can be­
come loose.
(D Note
The specified torque for the wheel bolts is 120 ft lb ( 160 Nm) with a to le rance of
± 7,4 ft lb( ± 10 Nm) . T orque wheel bolts
diagonally. After changi ng a wheel, the
torque m ust be che cked as soon as possi­
ble with a to rque wrenc h - preferab ly by an
a uthorized Audi dea le r or q ualified work­
shop.
Low aspect ratio tires
Your Audi is factory-equipped w ith low aspect
ratio tires. These tires have been tho roughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and hand ling under a variety of d riving condi­
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 l ess in the tire's s ize
designation. The n umeral rep resen ts the ratio
of the tire's s idewa ll height in relation to its
tread width exp ressed in percentage . Conven ­
t iona l tires have a he ight/width ratio of 60 or
more.
The performan ce of l ow-a spect-r atio tire s is
particularl y sen sitive to imp roper inflation
pre ssure. It is therefo re important that low
a spect ratio tires are inflated to the specified
pressure and th at the inflation pressure is
regularly checked and mainta ined. Tire pres -
s u res should be checked at least onc e a ..,.

Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang­
ing a wheel .
.,. After you experience a tire fa ilure, pull the
car well away from moving traffic and try to
reach
level gro und before you stop¢.&_ .
.. All passengers should
leav e the car and
move to a safe location (fo r instan ce, be hind
the guardra il) ¢.&_ .
.,. Engage the
parkin g brake to prevent your
vehicle from ro lling unintentionally ¢.&_ .
.. Move
selecto r le ver to p osition P ¢ .&_ .
1> Ifyou are towing a trai ler: unhitch the trail­
er from your veh icle.
.,. Block the diagonally opposite wheel with
the folding chocks or other objects .
.. Take the
jack and the inflatab le spare tire
out of the luggage compartment
¢ page 294.
& WARNING
You or your passengers cou ld be injured
while changing a whee l if yo u do not fol­
low these safety precautions:
- If you have a flat t ire, move a safe dis ­
tance off the road . Turn off the eng ine,
t ur n the emergency flashers o n and use
other warning devices to alert other mo­
torists .
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To he lp prevent the veh icle from mov ing
sudden ly and possibly slipping off the
jack, always fully set the parking b rake
and block the whee l diagonally opposite
the wheel being cha nged with the fo ld­
ing chocks or othe r objects. When one
front whee l is lifted off the g ro und, plac­
ing the A utomat ic Transm iss ion in P
(Park) wi ll
not prevent the vehicle from
moving .
-
What do I do now? 297
-Before you change a whee l, be sure the
ground is level and firm. If necessary,
use a sturdy board under the jack.
- Always store the vehicle tool kit, the jack
and the replaced tire in the luggage com­
partment
<=:>page 170 .
Changing a wheel
When you change a wheel , follow these­
quence described below step-by-step and in
exactly that order.
1. Activate the vehicle jack mode (only
vehicles with Adaptive Air S uspension)
¢ page 159 .
2. Remove the decorati ve wheel co ver* . For
more details see also <=:>
page 298, Deco­
rative wheel covers
or <=:> page 298,
Wheels with wheel bolt caps .
3. Loosen the wheel bolt s¢ page 298 .
4. Loca te the p roper mounting point for the
jack and align the jack be low that point
¢ page 299.
5. Lift the car with the jack Q page 299 .
6. Remove the wheel with the flat ti re and
then install the
inflatable spare tire
¢ page 300.
7. Tig hte n all wheel bolts lightly.
8 .
Lowe r the vehicle with the jack .
9. Use the wheel bolt w rench and
firmly
t ighten all wheel bolts¢ page 298 .
10. Replace the decora tive whe el co ver* .
11. Deactivate the vehicle jack mode (on ly
vehicles with Adaptive Air S uspension)
¢ page 159 .
A WARNING
Always read and follow all WARNINGS and
informat ion<=:>
& in Raising the vehicle on
page 300
and <=:> page 301.
•
•

Loosening
• Install the wheel bolt wrench over the
whee l bolt and push it down as far as it wi ll
go.
• Take tight hold of th e
end of the wrench
handle and turn the whee l bolts
counter­
clockwise
abou t one single turn in the di rec·
tion of arrow
c::> fig. 262 .
Tightening
• Install the wheel bolt wrench over the
wheel bolt and push it down as far as it will
go .
• Take tight hold of the
end of the wrench
handle and turn each wheel bolt
clockwise
until it is seated .
& WARNING
-Do not use force or hurry when changi ng
a whee l· you can cause the vehicle to slip
off the jac k and cause serious personal
injuries .
-Do not loosen the wheel bolts more than
one turn
before you raise the veh icle with
the jack. -You risk an injury.
(j) Tips
If a wheel bolt is very tight, you may find it
easie r to loosen by carefully pushing down
on the end of the wheel bolt wrench with
one foot only. As you do so, hold on to the
car to keep yo ur balance and take care not
to slip.
Raising the vehicle
The vehicle must be lifted with th e jack first
before the wheel can be removed .
Fig. 263 Sill pane ls: m arkin gs
What do I do now? 299
Fig. 264 Sill: p ositioning the jack
• Activate the vehicle jack mode* (only
veh icles with Adaptive Air Suspension)
c::> page 159 .
• Engage the parking brake to prevent your
vehicle from rolling unintentionally
• Move the
selector lever to position P .
• Find the marking (imprint) on the sill that is
nea rest the whee l that will be changed
c::>fig. 263. Behind the marking, there is a
lifting point on the sill for the jack.
• Turn the
jack located under the lifting point
on the sill to raise the jack until its arm@
c::> fig. 264 is located under the designated
plastic mount
c::> .&. c::> Q) .
• Align the jack so that its arm@ c::> fig. 264
engages in the designated lifting point in
the door s ill and the movable base® lies
flat on the ground. The base@ must be
ver­
tical
under the lifting point@.
• Wind the jack up further until the flat tire
comes off the ground
c::> .,& .
Position the jack only under the designated
lifting points on the sill
c::> fig. 263. There is
exactly
one locat ion for each whe el. The jack
must not be positioned at any other location
c::> .&. c::> Q).
An unstable surface under the jack ca n cause
the vehicle to slip off the jack. Always provide
a firm base for the jack on the ground . If nec ­
essary place a sturdy board or similar support
under the jack . On
hard, slippery surfaces
(such as tiles) use a rubber mat or similar to
prevent the jack from slipping
c::> ,&.. .,,.

308 Emergen cy si tuation s
@ Tips
- The discharged battery must be properly
connected to the vehicle's electrical sys­
tem. When jump starting or charging the
battery, never connect the negative
ground cable to the battery negative post because the battery manager sys­
tem must be ab le to detect the battery 's
state of cha rge. A lways connect the neg­
at ive g round c able to the neg ative
ground post o f the battery manager co n­
trol uni t.
Use of jumper cables
Make sure to connect the jumper coble
clomps in exactly the order described below!
Fig. 271 Eng ine compartme nt: Co nnecto rs fo r jumper
cab les and c harger
®
Fi g. 272 Jump starting with the battery of another ve­
hicle: A - booste r battery, B - discha rged vehicle battery
The procedure described below for connecting
jumper cables is intended to provide a jump
start for your veh icle.
Vehicle with discharged b attery :
.. Turn
off lights and accessories, move lever
of automatic transmission to N (Neutral) or
P (Park) and set parking brake. Connect POSITIVE(+) to POSITIVE(+
)
(red )
.. Open the red cover on the positive pole
¢fig. 271.
1. Connect one end of the red positive cable
on the
jump start bolt c::;, fig. 2 72 @
(Bolts under red cover = "positive") of the
vehicle to be started @.
2. Connect th e othe r end to the positive ter-
mi na l@ of the booster batte ry @ .
Connect NEGATIVE (-) to NEGATIVE (-)
(black )
3. Connect one end of the b lack negative ca­
ble to the negat ive termi na l@ of the
booster ba ttery @.
4 . Connect the othe r end of the black nega­
tive cab le to the
jump start bolt@ (Bolts
with hex head= "negative") of the vehicle
to be started @.
Sta rting the engine
.. Start t he engine o f the veh icle w ith the
booste r ba ttery @. Run the engine at a
moderate speed .
.. Start engine with discharged vehicle battery
@ in the usual manner.
.. If the engine fails to start: do not keep the
starter crank ing for lo nger than 10 seconds.
Wait for about 30 seconds an d the n try
again.
"" With engine running, remove j umpe r cab les
from both vehicles in the exact
reverse o r·
de r .
.. Close the red cover on the positive pole .
T he battery is vente d to the outside to p reven t
gases from entering the veh icle inter ior. M ake
s u re that the j umper clamps are well connec t­
ed with their
metal ports in full contact with
the battery term inals.
A WARNING
-
To avoid serious persona l injury and dam-
age to the veh icle, h eed all warnings and
i nstructions of the jumper cable ma nufac-
turer. If in doubt , call for road service. ,..