brakes AUDI Q5 2013 Owner's Guide

250 Tires and wheels
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 informat ion on all tires be­
cause it is not 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 we ight, 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 diameter of an inflated new
tire.
Overall width
means the linear distance between the exteri­
ors of the sidewalls of an inflated tire, includ­
ing elevations due to labeling, decorations, or
protective bands o r ribs .
Ply
means a layer of rubber-coated parallel cords.
Production options weight
means the combined weight of those insta lled
regular production options weighing over 5
lbs. (2.3 kg) in excess of those standard items
which they replace, not previously considered
in curb weight or accessory we ight, including
heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special tr im .
Radial ply tire
means a pneumat ic tire in which the ply cords
that extend to the beads are laid at substan­
t ia lly 90 degrees to the center line of the
tread .
Recommended inflation pressure
see<=> page 249, 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
responding standa rd 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 tire 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
t read and bead.

254 Tire s and wheel s
A 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 your 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 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 causing loss of con­
trol and a crash .
- Always make sure that the total load be­
ing transported -including the we ight of
a tra iler hitch and the tongue weight of a
loaded trailer -does not make the veh i­
cle heav ier than the veh icle's Gross Vehi­
cle Weight Rating.
A WARNING
- Incorrect tire pressures and/or underin­
flation can lead to a serious o r fatal acci­
dent.
- Incorrect tire pressures and/or underin­
flation cause increased tire wea r and can
affect the handling of the vehicle .
- Incorrect tire pressures and/or underin­
flation can also lead to sudden tire fa il­
ure, including a blowo ut and sudden de­
flation, causing loss of vehicle control.
Checking tire pressure
-
The correct tire pressure for the tires originol­
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 labe l and in the tab le
c:::> page 252, Cold tire inflation pressure .This
means that the pressure must be checked and
adjusted when the tire has not been driven for more than a couple of m iles (k ilometers) at
low speeds during the p revious three hours . Air in the tires expands when the tire heats up
as a result of interna l 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" tire that
counts . Therefore, you should never let air out
of a warm tire to match "Cold t ire inflat ion
pressure" recommendat ions
c:::> page 252 . The
t ires wou ld then be underinflated and could
fail suddenly .
The tire 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 vehicle at
the time it was manufactured . Fo r the loca­
t ion of the labe l
c:::>page 252, fig . 203 .
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 possible to see whether the rad ia l tires
used today are underinflated jus t by looki ng
at them.
T he refo re, be sure to check t ire p ressures at
least once a month and always before going
o n a long trip. Ma ke sure to take the numbe r
of peop le and the amou nt o f luggage into ac­
count when adjust ing tire pressu re for a trip -
even one that yo u wo uld not consider to be
" long." See
c:::> page 256, Tires and vehicle
load limits
for more important information .
Always use an ac curate tire p ress ure ga uge
when checking and adj usting inflation pres­
s u res . 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 air out
of the tire s low ly w ith the edge of the tire
gauge and keep checking the pressure until
you reach the pressure that is co rrect fo r the
load (passengers and luggage) and k ind of
dr iv ing you plan to do.
If the pressure in any tire is too low, note the
difference between the p ressure in the co ld
t ire and the pressure you need and add the air
t h at you need to reach the cor rect pressure for
t h e ve hicl e load (passengers and luggage) for
the tires on your vehicle as listed on the on

256 Tire s and wheel s
-If the tire is not flat and you do not have
to change a wheel immed iately, drive at
reduced speed to the nearest service sta­
t ion to check the tire pressure and add
air as required .
(D Note
Driving without va lve stem caps can cause
damage to the t ire valves . To prevent this,
always make sure that factory installed
valve stem caps on all wheels are securely mounted on the
valve .
@) For the sake of the environment
Underinf lated tires will a lso increase the
fue l consumption .
Tires and vehicle load limits
There are limits to the amount of load or
weight that any veh icle and any t ire ca n car ry.
A vehicle that is overloaded w ill not ha ndle
well a nd is more difficult to stop. Over load ing
can not on ly lead to loss of vehicle contro l,
but can a lso damage important parts of the
ve hicle and can lead to sudden tire failure , in­
cluding a blowout and sudden deflation that
can cause the veh icle to crash .
Your safety and that of yo ur passenge rs a lso
depends on making sure that load limits are not exceeded. Vehicle load includes everybody
a nd everyth ing in and on the vehicle . T hese
load limits are tech nica lly refe rred to as the
ve hicle 's
Gross V ehicle Weight Rating
("GVWR").
The "GVWR" includes the we ight of the basic
vehicle, all factory insta lled accesso ries, a full
tank of fuel, oi l, coo la nt and othe r fluids pl us
maximum load. The maxim um load includes
the number of passengers that t he vehi cle is
intended to carry ("seating capacity") w ith an
assumed weight o f 150 lbs (6 8 kg) for each
passenger at a designated seating pos ition
and the tota l weight of any l uggage in th e
ve­
hicle. If you tow a trailer, the weight of the
trailer hitch and the tongue weig ht of the loaded tra
ile r must be included as part of the
vehicle load .
T he
Gro ss Axle Weight Rating (" GAWR") is
the max imum load th at can be applied at e ach
of the vehicle's two axles .
T he Gross Vehicle Weight Rat ing and the
G ross Ax le Weight Ra ting are listed on the
sa fety comp liance s ticke r label lo cated on the
driver's side B-pillar. Your Audi has 5 seat ing
positions, 2 in the front and 3 in the rear fo r
total seat ing capac ity of 5. Each seating posi ­
t ion has a seat be lt
c:> page 149, Safety bel ts.
The fact that there is an upper limit to yo ur
vehicle's G ross Vehicle Weight Rating means
that the total weight of whatever is being car­
ried in the vehicle ( includ ing the weight of a
tra iler hitch and the tongue weight of the
loaded tra iler) is lim ited . The more passen ­
gers in the vehicle or passenge rs w ho are
heavier than th e standard we ights assumed
mea n tha t less we ight can be carried as lug­
gage .
T he t ire pressure label on your Aud i also lis ts
the max imum combi ned weig ht of a ll of the
occupants and luggage or other cargo that
the vehi cle can carry . For t he lo ca tion of the
label <=>page 252, fig. 203.
A WARNING
Overloading a vehicle can cause loss of ve ­
hi cle cont ro l, a c rash or other accident, se­
rious personal injury, and even death.
- Ca rrying more we ight than your veh icle
was des igned to carry wi ll prevent the
veh icle from handling pr operly and in­
crease the risk of the loss of vehicle con­
trol.
- The brakes on a vehicle that has been
overloaded may not be able to stop the
veh icle w ith in a safe distance.
- Tires on a vehicle that has been overload­
ed can fail s uddenly, including a blowout
a nd sudden defla tion, causing loss of
contro l and a c rash .
~

26 2 T ire s and wheel s
-All four wheels must be fitted with radia l
t ires of the same type, size (roll ing c ir­
cumference) and the same tread pattern.
Driv ing with different tires reduces veh i­
cle handling and can lead to a loss of
control.
- If the spare tire is not the same as the
t ir es that are mounted on the veh icle -
for example with wi nter tires - on ly use
the spare tire for a short period of time
and dr ive with extra care. Refit the no r­
ma l road whee l as soon as safely possi ­
ble.
- Never drive faster than the maxim um
speed for which the tires on your vehicle
are rated because tires that are drive n
faster than their rated speed can fail
sudden ly.
- Overloading ti res cause heat build- up,
sudden tire failure, including a blowout
and sudden deflation and loss of control.
- Temperature grades app ly to tires that
are properly inflated and not over or un­
derinflated.
- For technical reasons it is not a lways
poss ible to use wheels from other
vehicles -in some cases not even wheels
from the same vehicle model.
- If you install wheel tr im discs on the ve­
hicle whee ls, make sure that the air flow
to the brakes is not blocked . Reduced air­
flow to the brakes can them to overheat,
increasing stopping d istances and caus­
ing a collision.
- Run flat t ires may on ly be used on
vehicles that we re eq uipped w it h them
at the f acto ry. The vehicle must have a
chassis des igned for r un flat t ires . Incor­
rect use of run flat tires can lead to vehi­
cle damage or acc idents . Check with an
authorized Audi dealer or t ire specia list
to see if your vehicle can be equipped
with run flat t ires. If run flat tires are
used, they must be installed o n all four
wheels. Mix ing tire types is not permit­
ted. (D Note
- For technical reasons, it is not generally
poss ible to use the wheel rims from oth­
er veh icles. T his can hold tr ue for wheels
of the same vehicle type.
- If the spare tire is diffe rent from the
tires that you have mounted on your ve­
hicle (for example winter tires or wide
profi le tires), then use the spare tire for a
short period of time only and drive w ith
extra care. Replace the flat tire w it h the
ti re mat ching the othe rs on your vehicle
as soon as possi ble.
- Never d rive without the valve stem cap.
T he v alves co uld get damaged.
@ For the sake of the environment
Dispose of o ld tires in accordance w ith the
l ocal requirements.
Uniform tire quality grading
- Tread wear
- Tra ction AA A B (
- Temperature ABC
Quality grades can be found where applicab le
on the tire s ide wall between tread shoulder
and maximum section width
¢ page 259,
fig . 207 .
For example: Tread wear 200 , Traction AA ,
Temperature A .
All passenger car ti res must conform to Feder­
al Safety Requirements in add ition to these
grades .
Tread wear
The tread wear g rade is a comparative rating
based on the wear rate of the tire when tested
u nder contro lled conditions o n a specified
government test course.
F o r example, a tire graded
150 wo uld wear
one and one ha lf
(11/2) times as well on the
government course as a ti re graded
100.

Index 301
-----------------------------------.......
Automatic Shift Lock (ASL) . ... .. .. .. . 124
Automatic transmission .......... .... 123
Automatic S hift Lock (ASL) . .. .. .. .. . 124
Driving .. .. ............. .. .. .. ... 125
E mergency mode ......... .. .. .. .. . 128
E me rgency release . . . . . . . . . . . . . . . . . 128
Hill descent control .... ... .. .. .. .. . 126
Kick -down . ..... ...... ... .. .. .. ... 127
Manual sh ift program ..... .. .. .. .. . 127
Removal lock (ignition key) . .. .. .. .. .. 83
Selector lever ......... ...... .... .. 123
Shift buttons .... .. ...... .. .. .. .. . 127
Automatic wipe/wash system . . . . . . . . . . 54
Auto Safety Hotline ........ .. .. .. .. . 146
AUTO (climate contro l) . . . . . . . . . . . . . . . . 80
Average speed . . . . . . . . . . . . . . . . . . . . . . . 23
Avoid damag ing the vehicle ...... . ... . 206
B
Bass box .. ............ ...... .... .. 270
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Battery locat ion inside the luggage com-
partment .. ............. .... .. .. . 244
C harging . . . . . . . . . . . . . . . . . . . . 105 , 245
Important war nings when working on
the battery . . . . . . . . . . . . . . . . . . . . . . . 244
Jump starting ............... ... ... 284
L ow . .. .. .. ................. .. .. . 203
Replacing the batte ry ..... .. .. .. .. . 246
State of charge . .. ..... ... .. .. .. ... 203
Voltage .... .... ...... ... .. .. .. .... 34
Winter operation . ..... ... .. .. .. .. . 243
Working on the battery . . . . . . . . . . . . . 244
B efore driving ............. .... .. .. . 139
Bio-ethanol (Fuel) .... ...... .. .. .. .. . 229
Blended gasoline ... .... ... .. .. .. ... 228
B lower (climate control) . . . . . . . . . . . . . . . 80
Body cav ity sealing ......... .. .. .. .. . 222
B ooster seats .. .. .. .... ... .. .. .... . 186
Brake flu id
Changing the brake flu id .... ... ... .. 243
C hec kin g the bra ke fluid level . .. .. .. . 242
Reservoir .. .. ........... .. .. .. ... 24 2
Wha t is the cor rect brake flu id leve l? . . 24 2
What should I do if the brake flu id warn -
ing light comes on? .... ... .. .. .. .. . 242 Brake system .
..... ... .. .. ..... ... .. 242
Anti- lock b rake system . . . . . . . . . . . . . . 17
Brake assist system .. .. ..... ... .. .. 197
Brake booster .. .. ................. 200
Brake fluid .. .. .. .... ............. 242
B rake fluid specifications fo r refill and re ­
placeme nt . . . . . . . . . . . . . . . . . . . . . . . 243
B ra ke light defective . . . . . . . . . . . . . . . . 33
B ra ke pads .. .. .. .. . .............. 205
El ec tromechan ical par king br ake . .. .. . 88
General informa tion . ... .... ... .. .. 2 00
How does moist ure or road salt affect the
brakes? ... .. .. .. .. . ... ...... ... .. 200
Malfunction . . . . . . . . . . . . . . . . . . . . . . . 29
Warning/ind icator lights ............ . 18
Wor n brake pads symbol . . . . . . . . . . . . . 33
Braking guard . . . . . . . . . . . . . . . . . 107, 113
Messages . . . . . . . . . . . . . . . . . . . . . . . . 114
Settings .. .. .. .. .. ............... 114
Switching on and off ........... .. .. 114
B reak-in per iod .. .. .. . .............. 205
B rake pads .. .... .. . .. .. ..... ... .. 205
Tires ... .. .. .... .. . .. .. ..... ... .. 205
B reakove rangle . .. .... ........... .. 209
Bu lbs ........ .. ...... ............. 283
C
Californ ia Proposition 65 Warning ... .. 234
Battery spec ific . . . . . . . . . . . . . . . . . . . 245
C ap aci ties .. .. .. .. .... ........... .. 292
Car care .......... .. ..... .......... 216
E xterior . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Inte rio r ... .. .. .. .. ............... 223
Plast ic and vinyl .. .... ............. 220
Cargo a rea
refer to Loading the l uggage compart -
ment . ...... .. .... .......... ..... 145
Cargo floor . . . . . . . . . . . . . . . . . . . . . . . . . 70
Cata lytic converter . .... ......... .... 2 06
Center armrest Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . 66
Storage compa rtment .. .. .. ... ... .. . 66
Certification .. .. .. .. ............... 298
Changi ng
A flat t ire ... .... .. . .. .. ..... ... .. 274
A whee l ... .. .... .. . .. .. ..... ... .. 274
Engine oi l ... .... .. . .. .. ..... ... .. 239
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