power steering AUDI S7 2013 User Guide

-If the brake booster is not working, for
example when towing your vehicle, or
because the brake booster has somehow
been damaged, the brake pedal must be
pressed considerably harder to make up
for the lack of booster assistance.
Electro-mechanical
power assist
The electro-mechanical power assist helps
the driver when steering.
Power steering adapts electronically based o n
the vehicle speed.
Ind icator light s and messages
• Steering d efecti ve ! Stop the vehicl e
If this ind icator lig ht turns on and stays on
and this message appears, the power steering
may have fa iled.
Do
not continue driving. See yo ur authorized
Aud i dealer or other qualified repa ir facility
for assistance .
'y. ij Steering: System mal function! You m ay
c ont in ue drivi ng
If the indicator lig ht turns on and the mes­
sage appears, the steering may be more diffi­
cult to move or more sensitive than usual.
Drive s low ly to your author ized Audi dealer or
qua lified workshop to have the malfunction
corrected.
(D Tips
If the . or 'I aj indicato r light only stays
on for a sho rt time, you may contin ue driv­
ing .
Int ellig ent technolog y 201
Driving with your
quattro ®
Applies to vehicles : with all-wheel drive
With all-wheel drive, all four wheels are driv­
en .
General info rmation
With all Wheel Drive, power is distributed to
all four wheels. This happens automatically
depending on your driving style and the road
cond it ions at the time . See also ¢
page 196 .
With the sport different ia l*, power dist ribu­
tion to the rear wheels is variable and can be
adjus ted with A udi drive select*
¢ page 102.
Always read and follow safety precautions
¢ ,0. .
Winter tires
When dr iving in the winter, your vehicle with
all-wheel drive has an advantage, even w it h
regular tires. In winter ro ad conditions it may
be advisable to mount winter tires (or all -sea ­
son tires) for improved driveability and brak­
ing: these tires must be mo unted on
all fou r
whee ls.
See also ¢ page 261, Winter tires.
Tire chains
Where tire chains are mandatory on certain
roads, this norma lly also applies to veh icles
with all-wheel drive¢
page 262, Snow
chains.
Replacing wheels /tires
Vehicles with al l-wheel d rive must always
have tires of the same s ize. A lso avoid tires
with different tread depths . For detai ls see
page ¢
page 2 5 7, New tires and replacing
tires and wheels .
Off-Road driving?
You r A ud i does not have enough gro und clea r­
ance to be used as an off-road vehicle .
It is
therefore best to avoid rough tracks and un ­
even terra in as much as possib le . Also refer to
¢ page 205. ll>
•
•

-Never mount used tires on yo ur vehicle if
yo u are 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.
- If you notice unusual vibration or if the
vehicle pulls to one side when d riving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age .
(D Note
Please note that summe r and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight means the comb ined weight (in excess of
those sta ndard items which may be rep laced)
of au toma tic transmission, power steer ing ,
power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory-installed equip­
ment (whether installed or not) .
Aspect ratio
means the rat io o f the height to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improved steering re­
sponse and better overa ll handling on dry
pavement .
Bead
means the part of the t ire t hat is made o f
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead .
Cord means the strands forming the plies in the
tire.
Tire s an d wheel s 24 7
typica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
dec rease the e lasticity of summer t ires,
which affects tract ion and brak ing ability.
If summer t ires are used i n very co ld tem ­
peratures, cracks ca n form o n the tread
bars , res ulting in perma nen t tire damage
that can cause loud driving noise and un­
bala nced ti re s. Audi i s not respon sible for
th is type of damage .
Cold tire inflation pressure
means the t ire p ress ure recommended by t he
vehicle manufacture r fo r a tire o f a des ignated
s ize t hat has not bee n driven for more than a
coup le o f miles (k ilometers) at low speeds in
the three hour period before the tire press ure
is m easured or adjusted.
Curb weight
me ans the we ight of a motor ve hicle with
st andard equipmen t incl ud ing the max imum
capacity of fuel, oi l, and coolant, air condi ­
tioning and additional weig ht of optiona l
equipment.
Extra load tire
means a t ire design to oper ate a t higher load s
and at higher inflation pressures than the cor­
responding standa rd tire . Extra load tires may
be identified as "XL", "x l", "EXTRA LOAD", o r
"RF" on the sidewal l.
Gross Axle Weight Rating ("GAWR")
me ans the load-ca rry ing capac ity of a single
axle system , measured at the tire -ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
the ve hicl e. .,..
•
•

2 76 Fuses and bulbs
Fuse panel
@ (bl ack )
No. Equ ipment
= 7 Audi adaptive cruise control
8 Airbag control module, front
passenger's seat sensor system
9 Gateway
Homelink (garage door opener),
10 night vision system contro l
module
Image processing (Audi active
11 lane assist, Audi adaptive cruise
control)
12 Steering
I 13 Terminal 15 in the luggage com-
partment
14 T
ermina l 15 in the instr ument
pane l (front passenger's s ide)
15 Terminal 15 engine
16 Starter
Fuse panel B (brown)
No. Equipment
1 Gateway
2 Climate control
3 E SC con trol module
Front door (driver's side)
5 Power seat adjustment (dr
iver's
sea t)
6 Steering
7 Sun roof
8
R ear door control module (driv-
er's side)
9
Lumbar support ( Front passen-
ger seat)
11 Sunroof, rear spoiler ( Sportbac k)
12 Driver door control mod
ule
Fuse panel c (red)
No. Equipment
2 Fuel p ump
.
3
Brake light sensor/brake pedal
sensor s ystem
4 Engine aco ustics
Amp s
10
5
5
10
5
15
30 15
40
Amps
5
10
10
30
7,5
35
20 15
5
20
15
Amps
25
5/5
7 ,5
-Fuse panel © (red )
No. Equipment Amps
=· Rear door control module (driv-
5 30
er's side)
6 Left rear seat ______ , 7,5
Ho rn 15
Windshield wiper ____ 30
Light/rain sensor ___ 5
10 Lumba r support (dr iver seat) 5
11 Front passenger door control
module
1 2 Rig ht rear door control mod ule
Front passenger side cockpit fuse
assignment
15
15
Fig. 21 6 Fro nt passen ger sid e co ckp it : fu se pa nel w it h
p last ic brac ket
Fuse panel @ (black)
No. Equipment Amps
1 Head-up D is p la y 5
2
MMI Display 5
3 C D/DVD changer 5
4 MMI unit/drives 7,5
5 Chi
p card rea der (not in a ll co un-
5
tries)
6 Instrument cluster 5
7 Stee
ring column switch module
5
8 Headlight range adjustment/
5/7,5
adaptive lighting sys tem
1 0 Left headlight (head
light wit h
7,5
adaptive light)
I
...

Fuse s and bulb s 2 77
Fuse panel @ (brown) Fuse panel@ (red )
No. Equipment Amps No.
Equipment Amps
Climate control 10 1 Left belt tensioner 25
Climate control system blower 40 2 Right belt tensioner 25
3
Diagnost ic connec tor 10 3 Socke t 20
4
Electrical ignition lock 5 4 Socket 20
5
Power s teering colum n adj ust-
5 ment
5 Ele ctromechanical parking brake 5
6 adaptive air suspension 15
6 Steering column switch module 10
7
Power steering column adjust -
25
ment
7
Rear door (front passenger 's
30 side)
8 Rear e xterior lighting 30
8 Light switch 5
9
L u ggage compa rtment lid con-
30
trol modu le
Luggage compartment fuse assignment Telephone 5
11
Sound amplif ier 30
12
Rear spoiler (Sportback) 20
Fuse panel © (b rown )
No . Amps
1
Radio receiver, Sound amplifier/ 30/20
MMI unit/drives
2 Tank leak detection system 5
Fig. 2 17 Luggage co mpar tment: fuse panel w ith plas-
t ic b racke t 4
AEM co ntrol module/battery 10/15
module
Fuse p anel A (black )
Battery fan 35
Radio receive r 7,5
No. Equipment Amps 8 Rear Seat Entertainment 7,5
Electromechanical parking brake 30
Electromechanical parking brake 30 9
Automatic d imm ing interior 5/15
rearview mirror/battery mod ule
6
Front door (front passenger's
30 side)
10 Parking system 5
7
Rear exterior lighting 30 Fuse panel @ (green )
Rear sun shade, clos ing aid, lug-No .
Equipment Amps
8
gage compartment lock, con-
20 venience key, START ENGINE
1 Aud i pre sense 5
2
Electromechanical parking brake 5
STOP, fuel fi ller door 3 ad aptive air suspens ion 5
9 Power seat adjustment 15
4 Automatic transmission 7,5
10
Parking system 5 5 Parking system 5
11
Rear seat heating 30 6 Rear Seat Entertainment 5
7
Sta rt -Stop-Sys tem 5
8 Audi side assist 5

300 Index
K
Key ... . ... ....... ......... ... .... .. 32
Battery replacement master key ... .. .. 33
Emergency key .............. ..... .. 32
Key not recognized . . . . . . . . . . . . . . . . . . 78
Key replacement ......... .... .... .. 32
Master key . . . . . . . . . . . . . . . . . . . . . . . . 32
Mechanical key .............. ... ... . 33
Valet key . .. .. ........ .... ... .. .. .. 32
Kick-down tiptronic
113
Knee airbags ................. ..... . 166
Description ................. ..... . 166
How they work .............. ..... . 168
Important safety instructions . . . . . . . . 168
L
Lane assist . . . . . . . . . . . . . . . . . . . . . . . . . 95
Lane Change Assistant
refer to side assist . . . . . . . . . . . . . . . . . . 98
LATCH .. .. .. ............. .... .. ... 189
Descript ion .... .... ...... .. .. .. .. .
Installing a child restraint ...... .. .. .
Location .. .... ............. ... ' . .
Mounting and releasing the anchorage
hook
. . .. .. ............. .... .. .. .
190
191
190
191
Launch Control Program .... .. .. .. .. . 114
Leather ..................... ..... . 221
L eather (cleaning) .......... .. .. .. .. . 222
Leaving home ............. .. .. .. .. .. 45
Lifting jack . . . . . . . . . . . . . . . . . . . . . . . . 2 71
Lifting vehicle ................ ... ... 283
Light Ambience lighting .......... .. .... .. 46
Coming/Leaving home ..... .. .. ...... 45
Daytime running lights .. ... ... .. .. .. 43
Emergency flashers . . . . . . . . . . . . . . . . . 44
Exterior lighting .... .. .... .. .. .. .. ..
43
H ead light range control ... .. .. .. .. . . 43
High beam .............. ........ .. 45
L ow beam . ................. ..... ..
43
Rear fog lights .............. ..... .. 43
Side marker lights ......... ... .... ..
43
Turn signals ............. .. .. .. .. .. 45 Light/rain
sensor
Headlights . ..... ................ .. 43
Intermittent (windshield w ipers) ...... 47
Sensor defective . . . . . . . . . . . . . . . . . . . . 22
Loading the roof rack ................ . 62
Locking Power locking switch ................ 37
Remote control .... ........... .. .. . 35
Using the key ................. ..... 37
Low beams . .... .. ... .......... .... . 43
Lower universal anchorages (Canada) . . .
189
Luggage compartment
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . 65
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . 65
carpeting ..... .. ................ .. 66
Cover ......... .. ..................
63
Enlarging . . . . . . . . . . . . . . . . . . . . . . . . . 64
Loading ... ...... ................. .
63
Ski sack ...................... ..... 66
Stowing luggage .............. ....
136
Tie -downs . . . . . . . . . . . . . . . . . . . . . . . . . 65
Trunk pass-through ...... ...... .. .. . 67
Lumbar support
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 54
M
Maintenance .... .. ................ . 289
Malfunction Indicator Lamp (MIL) . . 21, 29
Manual shift program ............ .. .. 113
Massage function
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 54
Matte finish paint .. ............. .. .. 215
Mechanical key .. .. ... .......... .. .. . 33
Mirrors Adjusting the exterior mirrors ..... ... .
49
d' . ,mmrng .. .... .. ................ .. so
Vanity mirrors ................ ..... 47
Monitoring the Advanced Airbag System
161
Multifunction steering wheel .. .. .. .. .. . 25
N
Natural leather .....................
New t ires and wheels
NHTSA 221
257
Contacting .. .. .. ....... ...... .. .. 138