2014 AUDI Q7 brakes

Groove
means the space between two adjacent tread
ribs.
Load rating (code)
means the maximum load that a tire is rated
to carry for a given inflation pressure. You
may not find this information on all tires be­
cause it is no t req uired by law.
Maximum load rating
means the load rating for a t ire at the max i­
mum permissible inflation pressure for that
tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure
to which a tire may be inflated. Also called "maximum inflation pressure."
Normal occupant weight
means 150 lbs. (68 kilograms) times the
number of occupants seated in the vehicle up
to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle.
Outer diameter
means the overa ll diamete r of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ ­
in g elevations due to labeling, decorations, or
protective bands or ribs.
Ply
means a layer of rubber-coated parallel cords.
Tires and wheels 275
Production options weight
means the combined weight of those installed
regular production options we ighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory weight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and spec ial tr im .
Radial ply tire
means a pneumatic tire in which the ply cords
that extend to the beads are laid at substan­
tia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see ¢ page 2 7 4, Cold tire inflation pressure.
Reinforced tire
means a t ire design to operate at higher loads
and at h igher inflation pressures than the cor­
re sp onding standard tire. Reinforced tires
may be identified as "XL", "xl", "EXTRA LOAD",
or "RF" on the sidewa ll.
Rim
means a metal support for a tire or a t ire and
tube assembly upon which the tire beads are
seated.
Rim diameter
means nom inal diameter of the bead seat. If
you change your wheel s ize, you will have to
purchase new tires to match the new rim di­
ameter.
Rim size designation
means r im diameter and width .
Rim width
means nominal distance between rim flanges .
Sidewall
means that portion of a tire between the
tread and bead.
•
•

& 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. ..,

-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. •
•

322 Index
Alcantara Cleaning 247
All-wheel drive . ........... .... .... . 228
Winter tires
Alternator 288
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 31
Ambience lighting Lighting profiles .......... .... .... .. 62
Anti-freeze
refer to Engine coolant system ....... 264
Anti-lock brake system ...... .. .. .. .. . 224
Warning/indicator lights . . . . . . . . . 16, 18
Anti-slip regulation ........ .. .. .... . 224
Warning/indicator lights ... .. .. .. .. .. 16
Anti-theft systems Anti-theft alarm system . . . . . . . . . . . . . SO
Electronic immobilizer ............. .. 40
Approach/departure angle . .. .. .. .. .. . 237
Ashtray . .. ... ............ .. .. .. .. .. 87
Asterisk What does it mean when something is
marked with an asterisk? . . . . . . . . . . . . . . 6
Audi braking guard ....... .. .. .. .. .. . 127
Error messages .............. .... . 128
Settings . . . . . . . . . . . . . . . . . . . . . . . . . 128
Status messages . . . . . . . . . . . . . . . . . . 128
Switching on and off ...... .. .. .. .. . 128
Audi Service Repair Manuals and Litera-
ture .. .. .. .. ............. .. .. .... . 316
Auto -Check Control . . . . . . . . . . . . . . . . . . 30
Automatic belt retractor ..... .... ... . 178
Automatic mode
Four-zone automatic comfort air condi-
tioning ........................... 99
Automatic Shift Lock (ASL) . . . . . . . . . . . 138
Automatic transmission ..... .. .. .... . 137
Automatic Shift Lock (ASL) . .. .. .. .. . 138
Driving .. ................. .. .... . 139
Emergency mode .......... ... .. .. . 141
Emergency release ......... ... .. .. . 141
Hill descent control ........... .. ... 140
Ignition key safety lock ...... .. .. .. . 105
Kick-down .. ... .......... .. .. .. .. . 141
Manual shift program ......... .. .. . 140
Selector lever .................... . 13 7
Shift buttons . . . . . . . . . . . . . . . . . . . . . 140 AUTO mode
A/C climate controls ............ ... . 95
Auto Safety Hotline ............. .... 171
Average speed . . . . . . . . . . . . . . . . . . . . . . . 24
Avoid damaging the vehicle ........ ... 234
B
Bass box
Battery .... .. .. .. .. ........... ... .
Battery location .. ................ .
Charging ...... .. .. ... ........... .
Important warnings when working on
the battery .... .. ............. ... . 295
268
269
270
269
Jump starting .. .. ... .......... .. .. 307
Low ..... ..... ............... .... 229
Replacing the battery .............. 272
State of charge ................... . 229
Voltage ... .... ................... . 35
Winter operation . ............. .... 268
Working on the battery .. .... ... .. .. 269
Before driving ..... ............. .... 164
Blended gasoline .. ................ . 249
Booster seats . . . . . . . . . . . . . . . . . . . . . . 212
Brake fluid
Changing the brake fluid ............ 268
Checking the brake fluid level ..... ... 267
Reservoir ... .. .. .. .............. . 267
What is the correct brake fluid level? .. 267
What should I do if the brake fluid warn-
ing light comes on? ...... ...... .. .. 267
Brake light Defective . . . . . . . . . . . . . . . . . . . . . . . . . 23
Brake system .... ... .............. .. 267
Anti-lock brake system . . . . . . . . . . . . . . 18
Brake assist system ................ 224
Brake booster .... ............. .... 226
Brake fluid . ..... ................ . 267
Brake fluid specifications for refill and re-
placement .... .. ............. .... 268
Brake pads .. .. .. ..... ........... . 232
General information .............. . 226
How does moisture or road salt affect the
brakes? . .. .. .. .. ............. .. .. 226
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 32
Parking brake .. .. ... .......... .. .. 109
Warning/indicator lights ............. 19
Worn brake pads symbol . . . . . . . . . . . . . 36