2013 AUDI A6 brake

24 6 T ire s and whee ls
The correct tire pressure for the spare wheel is
located on a label on the driver's side B-pillar.
Because tec hnical changes may be made to
vehicle equ ipment dur ing the model year, a l­
ways compare the tire size designation on the
tire pressure labe l on your vehicle with the
tires on your vehicle . Make sure that the tire
si ze information on the vehicle label is the
same as the si ze of the tires on the vehicle.
This is especially important if the vehicle be ­
longs to someone else or you bought the veh i­
cle with different rims/tires or you bought the
vehicle as a p reviously owned vehicle.
Remember, your safety and that of your pas­
sengers also depends on mak ing sure that
l oad limits are not exceeded. Vehicle load in­
cludes everybody and everything in and on the
ve hicl e. These load limits are technically refer­
red to as the vehicle's Gross Vehicle Weight
Rating ("GVWR") . The Gross Ax le Weight Rat­
ing ("GAWR") is the maximum load that can
be applied at each of the veh icle's two axles.
The Gross Vehicle Weight Rating and the
Gross Axle Weight Rating are listed on the
safety compliance st icker labe l located on the
driver 's side B-p illar . The tire pressure label on
your Aud i lists the maximum combined
weight of all of the occupants and luggage or
o ther cargo that the vehicle can carry. For the
l ocation of the tire pressu re labe l
i=:> fig. 191.
A WARNING
Overloading a vehicle can cause loss of ve ­
hicle control, a cras h or other accident, se­
r ious 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
trol and a crash . -
Always make sure that the total load be­
ing transported - including the weight of
a trailer hitch and the tongue we ight of a
loaded trailer -does not make the vehi­
cle heavier than the vehicle's G ross Vehi­
cle Weight Rating.
A WARNING
-- I ncorrect tire pressures and/or underin-
flation can lead to a serious or fatal acci­
dent.
- I nco rrect tire pressures and/or underin­
flation cause increased ti re wear and can
affec t the handling of the vehicle .
- I nco rrect tire pressures and/or underin­
flation can a lso lead to s udden t ire fail­
ure, including a blowou t and sudden de­
flation, ca using loss of veh icle cont ro l.
Checking tire pressure
The correct tire pressure for the tires original­
ly installed on your vehicle is listed on the tire
pressur e label located on driver's side 8-pil ­
lar .
The recommended tire pressures are on the
t ir e pressure label and in the table
i=:> page 244, Cold tire inflation pressure.This
means that the pressure m ust be checked and
adjusted when the t ire has not been dr iven for
more than a couple of miles (kilometers) at
low speeds during the previous three hours.
Air in the tires expands when the tire heats up as a result of inter nal frict ion as it flexes in
u se . T he t ire pressure is higher when the tire
has warmed up t han whe n it is "co ld. "
It is the inflation pressure in a "co ld" t ire that
counts . The refore, you should never let a ir out
of a wa rm tire to match "Cold t ire inflat ion
pressure" recomme ndat ions
i=:, page 244 . The
t ir es wo uld then be unde rinflated and co uld
fail suddenly .
T he t ire pressure label on your Audi lists the
recommended co ld tire inflation pressures at
m aximum cap acity for the new, or ig inal
equipmen t tires tha t were on your vehicle at ..,.

The tire pressure label on your Audi also lists
the maximum combined weight of all of the
occupants and luggage or other cargo that
the vehicle can carry. For the location of the
label
c:::>fig. 191.
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 the loss of vehicle 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, 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 QC-
Tires and wheels 249
CUPANTS AND CARGO
SHOULD NEVER EXCEED XXX KG OR XXX LBS" on your ve­
hicle's placard (tire inflation
pressure label)
¢ fig. 191.
2. Determine the combined weight of the driver and pas­sengers that will be riding in
your vehicle.
3. Subtract the combined weight of the driver and pas­sengers from
"XXX" kilo­
grams or
"XXX" pounds
shown on the sticker
¢ fig. 191.
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.
•
•

Unbalanced whee ls must be rebalanced to
avoid excessive wea r on steering, suspension
and tires. A wheel must a lso be rebalanced
when a new tire is installed .
Incorrect wheel alignment
Incorrect whee l alignment can cause exces­
sive tire wear, impairing the safety o f the vehi­
cle. If tires show excess ive wear, have the
wheel alignment checked by an authorized
Audi dealer or qualified workshop .
All-wheel d rive
Vehicles w ith quattro ® must always have tires
of the same size, construction and tread type .
F or detai ls see
r=!:> page 196 .
A WARNING
Sudden tire failure can lead to loss of con­
trol, a crash and serious persona l injury!
- Never drive a veh icle 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"hydrop lan ing" and loss of
co ntrol.
- Always keep chemicals that can cause
tire damage, such as grease, oil , gasoline
and brake fluid away from t ires.
- Tires age eve n if they are not be ing used
and can fail suddenly, especially at high
speeds. T ires that are more than 6 years
o ld can only be used in an emergency
and then with spe cial care a nd at lower
s peeds.
- Never mount used ti res on yo ur vehicle if
yo u a re not s ure of their "prev ious histo­
ry." Old used ti res may have been dam­
aged even though the damage cannot be
seen that can lead to s udden tire failure
and loss of vehicle control. Tires and wheels 251
New tires and replacing tires and wheels
New tires and wheels have to be broken in
.
Fig. 19 5 Tir e spec ificat io n codes on t he s idewall o f a
tire
No. De sc ription
CD Passenger car tire (where applicable)
@ Nomina l w idth of t ire in mill imeters
® Ratio of height to width (aspect ratio)
© Rad ial
® Rim diameter code
® Load index and speed rating
(f) U.S. DOT tire identification number
® Aud i Origina l tire
® Sever snow conditions
@ T ire ply composition and mater ials
used
@ Maximum load rating
@ Treadwear, traction and temperat ure
grades
@ Maximum permissible inflation pres-
sure
T he tires and rims are essential parts o f the
vehicle's design . The ti res and rims app roved
by Audi a re spec ia lly matched to the charac­
teris tic s of the ve hicl e and can m ake a major .,.
•

254 Tires and wheels
-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.
- 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
~fig. 195.
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.
Fo r example, a tire graded 150 would wear
one and one half (1 1/2) times as well on the
government course as a tire graded 100.
The relative performance of tires depends
upon the actual conditions of their use, how­
ever, and may depart significantly from the
norm due to variations in driving habits, serv­
ice practices and differences in road character­
istics and climate.
Traction
The traction grades, from highest to lowest,
are AA, A, Band
C. Those grades represent the
tire's ability to stop on wet pavement as ..,.

@ Tips
Where snow chains are mandatory oncer­
tain roads, this normally also applies to
veh icles with all-wheel dr ive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory insta lled 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 f itted
securely and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same model
<=> page 287.
.&_ WARNING
Improperly tightened or maintained wheel
bolts can becom e loose caus ing loss of
cont ro l, a co llision and serious persona l in­
Jury .
- Always keep the wheel bolts and the
threads in the wheel hubs clea n so the
w heel bolts can t urn easily and be prop ­
erly t ightened .
- Never grease or oil the wheel bolts and
the threads in the wheel hubs. They can
become loose while d riving if greased or
oi led, even if tightened to the specif ied
torque.
- Only use whee l bolts that belong to the
rim being installed .
- Never use different whee ls bolts on your
vehicle.
- Always maintain the co rrect tighten ing
torq ue for the wheel bo lts 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 vehi­
cle is moving. If the tightening torque is
too high, the whee l bolts and threads
Tire s an d wheel s 257
can be damaged and the whee l can be­
come loose.
(D Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm) . Torq ue whee l bolts diago­
nally. After changing a whee l, the torq ue
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
You r Aud i is facto ry-equ ipped w it h low aspect
ra tio tires. These tires have been tho ro ughly
tested and been se lec ted spe cifically for you r
model for their superb perfo rmance, road fee l
and handling under a variety of driving condi­
tions. Ask your authorized Audi dealer for
more details .
T he low aspect ratio of these t ires is ind icated
by a numera l of
55 or le ss in the tire's s ize
designation. The numera l represents the ratio
of the t ire's sidewa ll height in relation to its
tread width expressed in percentage. Conven­
tiona l tires have a he ight/w idth rat io of 60 or
more .
The performance of low-aspect -ra tio tire s is
particularly sens it iv e to improper inflation
pressure. It is therefore important that low
aspect ratio t ires are inflated to the specified
pre ssure and that the inflation pressur e is
regularly che cked and maintain ed. Tire pre s­
s ures should be checked at least on ce a
m onth and alwa ys before a long trip
¢ page 246, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damage d mo re
easily by impact w ith potholes, curbs, g ull ies
or ridges on t he road, partic ularly if the tire is
u nderinflated.
Ill>-
•
•

268 What do I do no w?
P uttin g on the spare wheel
.. Lift the spare wheel and ca refully slide it
over the alignment pin to guide it in place
¢ (D .
.. Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel
bolts
slightly.
.. Remove the alignment pin and insert and
t ighten the remaining wheel bolt slightly
L ike the rest .
.. Turn the jack handle cou nter -clockw ise to
lower the vehicle unt il the jac k is fully re­
leased.
.. Use the wheel bolt wrench to tighten all
wheel bolts firmly¢
page 265 . Tighten
them
crosswise, from one bolt to the (ap­
proximately) opposite one, to keep the
wheel centered.
When removing or installing the wheel,
the rim could hit the brake rotor and dam­
age the rotor. Work carefully and have a
second person help you .
(j) Tips
Never use the hexagonal socket in the han­
dle of the screwdriver to loosen or t ighten
the wheel bolts .
- Pull the reversible blade from the screw­
driver before you use the hexagonal
socket in the handle to turn the wheel bo lts.
- When mounting tires with
unid irectional
tread design
make sure the tread pat­
tern is pointed the right way
¢ page 268.
-The wheel bolts should be clean and easy
to tu rn . Check for d irt and corrosion on
the mat ing su rfaces of both the whee l
and the h ub. Remove al l dirt from these
surfaces before remo unting the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the right direction .
Using a sp are t ire w ith a tre ad pattern
intended for use in a specific direction
When using a spare t ire with a tread patter n
intended for use in a spec ific d irection , please
note the following :
- The direct ion of rotation is marked by an ar­
row on the side of the tire .
- If the spare tire has to be installed in the in­
correct direct ion, use the spare tire only
temporarily s ince the tire will not be able to
achieve its optimum performance cha racter­
isti cs wit h regard to aquap lan ing, no ise and
wear .
- We recommend that you pay part icu la r at­
t ention to th is fact d uring wet wea ther and
t ha t you adjust you r speed to match road
conditions .
- Replace the fl at tir e with a new one and
have it insta lled on you r vehicle as soon as
possible to restore the handling advantages
of a u nidirectional tire .
Notes on wheel changing
Please read the information¢ page 251, New
tires and replacing tires and wheels
if you a re
going to use a spare tire which is different
from the ti res on your vehicle .
After you change a tire:
- Check the tire pre ssure on the spar e imm e­
diately after install ation.
- Have th e whe el bolt tight ening torqu e
c hecked with a torque wrench as soon a s
pos sible by your author ized Audi de aler or
a q ualified service stat ion.
- With steel and allo y wheel r im s, the wheel
bolt s ar e cor re ctl y tightened at a torque of
90 ft lb (1 20 Nm ).
- If you noti ce th at the wheel bolts are cor­
roded and diffi cult to turn while changing
a ti re , they should be repl aced before you
check the t ightening torque. .,..

Fuse panel@ (black )
No. Equipment Amps
= = 7 Audi adaptive cruise control 10
8
Airbag control module, front
5
passenger's seat sensor system
Gateway 5
Homelink (garage door opener),
10 night vision system control
5
module
Image processing (Audi active
11 lane assist, Audi adaptive cruise
10
control)
12 Steering 5
1 13 Terminal 15 in the luggage com-
15
partment
14 Terminal 15 in the
instrument
30
panel (front passenger's side)
15 Terminal 15 engine 15
16 Starter 40
Fuse panel
B (brown)
No. Equipment Amps
1 Gateway 5
2 Climate control 10
3 ESC control module 10
Front door (driver's side) 30
s
Power seat adjustment (driver's
7,5
seat)
6 Steering 35
7 Sunroof 20
8
Rear door control module (driv-
15
er's side)
9 Lumbar support (Front passen
-
5
ger seat)
11 Sunroof, rear spoiler (Sportback) 20
12 Driver door control module
15
Fuse panel
c (red)
No. Equipment Amps
2 Fuel pump 25
3 Brake light sensor/brake pedal
sensor system 5/5
4 Engine acoustics 7,5
Fuses and bulbs
-Fuse panel © (red)
No.
u Equipment
5 Rear door
control module (driv-
er's side)
6 Left
rear seat
Horn
Windshield wiper
9 Light/rain sensor
10 L
umbar support (driver seat)
11 Front passenger door control
module
12 Right rear door control modu le
Front passenger side cockpit fuse
assignment Amps
30
7,5 15
30 5
5
15
15
Fig. 212 Front passenger side cockpit: fuse panel wit h
p last ic bracket
Fuse panel A (black)
No. Equipment
Amps
1 Head-up Display 5
2 MMI Display 5
3 CD/DVD changer 5
4 MMI unit/drives
7,5
5 Chip card reader (not in all coun
-
5
tries)
6 Instrument cluster
5
7 Steering column switch module
5
8
Headlight range adjustment/
5/7,5
adaptive lighting system
10 Left
headlight (headlight with
7,5
adaptive light)
I
271
...

272 Fuses and bulbs
Fuse panel @ (brown)
No. Equ ipment Amps
Climate control 10
Climate control system blower 40
3
D iagnost ic connec tor 10
4 Electrical ignition lock 5
5
Power s teer ing column adju st-
ment
5
6 Steering column switch module 10
7
Power steering column ad just -
ment
25
8 Light switch 5
Luggage compartment fuse assignment
F
ig . 2 13 Lu ggage compar tment: fuse pa nel w ith plas­
t ic bracket
Fu se panel A (black )
No. Equipment Amps
Electromechanical pa rking brake 30
Electraomechanical parking brake 30
6
Front door (front passenge r's
30 s ide)
7 Rear exterior lighting 30
Rea r su n shade, closing aid, lug-
8 gage
comp artment lock, con-
20
venience key, S TA RT E NGIN E
STOP, fuel fi ller door
9 Power seat adjustment 15
1 0
Pa rking system 5
11
Rear seat heating 30
Fuse panel @ (red )
No. Equipment Amps
1 Left belt tensioner 2 5
2 25
3
Socke t 20
4
Socket 20
5
Ele ctrome chanic al p arking b ra ke 5
6 adaptive air suspension 15
7
Rear door (fron t passenger's
30 side)
8 Rear exterior lighting
30
9
L
u ggage compartment lid con-
30 trol mod ule
Telephone
5
11
So und amplif ier 30
12
Rear spoiler (Sportback) 20
Fuse panel © (brown)
No . Equipment Amps
1 Radio receiver, Sound amplifier/ 3 0/ 20
MMI unit/dr ives
Tank lea k detec tion sys tem
5
4 AEM co ntrol module/battery 10/15
mo dule
Battery fan
35
Rad io rec eiver 7,5
7 ,5
9
Automatic dimm ing in terior 5/15
rea rv iew mirror /ba ttery m od ule
10 Parking system 5
Fuse panel @ (green)
No. Equipment Amps
1 Audi pre sense 5
2
Electromechanical parking brake 5
3 ad a pt ive air suspen sio n 5
4
Automatic transmission 7,5
5
Parki ng sys tem 5
6 Rear Seat Entertainment 5
7
Start -Stop-System 5
8 Audi side assist 5