power steering AUDI S7 2015 User Guide

200 Intelligent technology
nearest Audi dealer or qualified work­
shop.
- Never let the vehicle ro ll to a stop with
the engine shut off.
- If the brake booster is not working, the
brake pedal must be pressed considera­
bly harder to make up for the lack of
booster assistance.
Electromechanical
power assist, dynamic
steering
The electromechanical power assist helps the
driver when steering.
Power steering adapts electronically based on
the vehicle speed.
Indicator lights and messages
• Steering defective! Stop the vehicle
If this indicator light turns on and stays on
and this message appears, the power steering
may have failed.
Do
not continue driving. See your authorized
Audi dealer or other qualified repair facility
for assistance.
l>:r-ij Steering: System fault You can continue
driving
If the indicator light turns on and the mes­
sage appears, the steering may be more diffi­
cult to move or more sensitive than usual. The
steering wheel may also be at an angle when
driving straight.
Drive slow ly to your authorized Audi dealer or
qualified workshop to have the malfunction
corrected.
'Tl Dynamic steering: Initializing
If th is driver message appears and the ind ica­
tor light is flashing on the inst rument panel,
dynamic steering* is be ing reinitialized. After
starting the engine, the steering whee l wi ll
move slightly. Re-initialization might be nec­
essary if the steering wheel was moved hard
to the left and right while the vehicle was not moving. The display
goes out as soon as initi­
alization is complete.
Drive slowly to your authorized Audi dealer or
qualified wo rkshop to have the malfunct ion
corrected.
A WARNING
Have the dynamic steering * system mal ­
function repaired as soon as possible by an
authorized Audi dealer or qualified work­
shop -risk of accident!
(D Tips
If the . or '1:I indicator light only stays
on for a short time, you may continue driv­
ing.
- The dynamic steering* stability systems
are not availab le in the event of a system
malfunction .
- For additional information on dynamic
steering*, refer to¢
page 102.
Driving with your
quattro
-
With all-wheel drive, all four wheels ore driv­
en .
General information
With all-wheel drive, power is distributed to
all four wheels. This happens automatically
depending on your driving style and the road
conditions at the time. See also
¢page 195.
A center differential distributes the driving
power variably to the front and rear axle.
It
works together with selective wheel torque
control, which activates when driving through
curves¢
page 196. With the sport differen­
tial*, power distribution to the rear wheels is
variable and can be adjusted with drive se lect
¢ page 102.
The all-wheel drive concept is des igned for
high eng ine power. Your veh icle is except ion­
ally powerfu l and has excellent driving charac­
teristics both under normal driving conditions
and on snow and ice. Always read and follow
safety precautions ¢,&. . .,.

242 Tires and wheels
-If you notice unusual vibra­
tion or if the vehicle pulls to
one side when driving, al­
ways stop as soon as it is
safe to do so and check the
wheels and tires for dam­
age.
0 Note
-Please note that summer and winter tires are de­
signed for the conditions
that are typical in those sea­
sons. Audi recommends us­
ing winter tires during the
winter months. Low tem­ peratures significantly de­
crease the elasticity of
summer tires, which affects
traction and braking ability. If summer tires are used
in
very cold temperatures, cracks can form on the tread
bars, resulting in perma­
nent tire damage that can
cause loud driving noise and
unbalanced tires. Audi is not
responsible for this type of
damage.
-Burnished, polished or chromed rims must not be used in winter road condi­
tions. The surface of the
rims does not have suffi­
cient corrosion protection
for this and could be perma­
nently damaged by road salt
or similar substances.
Glossary of tire and loading terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power
steering, power brakes, power
windows, power seats, radio, and heater, to the extent that
these items are available as fac­
tory-installed equipment (whether installed or not).
Aspect ratio
means the ratio of the height to
the width of the tire in percent.
Numbers of 55 or lower indi­
cate a low sidewall for im­
proved steering response and
better overall handling on dry
pavement.
...

282 Fuses and bulbs
No . Equipment Amps
4 Suspension control system sen-
5
sor
5 Electron
ic Stabilization Control
5
(ESC) mod ule
6 Climate
control
5
7 Adaptive cruise control 10
8
Airbag control module, front
5
passenger's seat sensor system
9 Gateway 5
Garage door opener (Homelink),
10 night vision system contro l 5
module
11 Image processing (active
lane
10
ass ist, adaptive cruise control)
12 Dynamic steering 5
13 Terminal 15
in the instrument
15
panel
14 T
ermina l 15 in the luggage com-
partment 30
15 T
erminal 15 (engine)
15
16 Starter 40
Fuse panel @ (brown)
No . Equipment Amps
1 Gateway
5
2 Climate control 10
E lec tronic Stabilization Contro l
10
3
(ESC) module
4 Front door (driver's
side)
30
5 Power seat adjustment (driver's
7,5
seat)
6 Dynamic steering
35
7 Su nroof 20
Rear door control module (driv- 15
8
er's side)
9 Lumbar support (Front passen-
5
ger seat)
10 Tire pressure monitoring system
5
11 Su
nroof, rear spoiler (Sportbac k)
20
12 Driver door
control module
15
Fuse panel© (red)
No . Equipment
2 Fuel pump
3 Brake light sensor/brake pedal
sensor system
4 AdBlue control module (Diesel)/
Engine acoustics
5 Left rear door contro l modu le
6 Power
seat adjustment (pas-
senger's seat)
7 Horn
8 Windshield wiper motor
9
Light/rain sensor, heater for vid-
eo camera in windscreen
10 Lumbar support (dr iver seat)
11 Front
passenger door control
module
12 Right rear door control mod ule
Front passenger side cockpit fuse
assignment Amps
25
5/5
5/7,5 30
7,5 15
30
5
5
15
15
Fig. 220 Front passenger side cockpit: fu se pane l w ith
plastic bracket
Fuse panel @ (black)
No. Equipment Amps
1 Head-up Display
5
2 MMI Display 5
3 CD/DVD changer
5
4 MMI unit/dr ives 7,5
5 Chip card reader (not
in all coun-
5
tries)
6 Instrument cluster
5
7 Steering column switch module 5

M N <( I.J "". rl I.O
"' rl
"' rl
No. Equ ipment Amps
8
Headlight range adjustment/ 5/7,5
adaptive lighting system
10
Left headlight (headlight with 7,5 adaptive light)
11 Supplementary heater s
Fuse p anel @ (b ro w n)
No . Equipment Amps
1 Climate control 10
2
Climate control system blower 40
3
Diagnostic interface 10
4
E lectrical ignition lock s
5
Power steering column adjust-
ment
s
6 Steering column switch module 10
7
Power steering column adjust-
ment
25
8 Light switch 5
Luggage compartment fuse assignment
Fig . 221 Luggage compa rtmen t: fuse panel wit h p las ­
tic bracket
Fuse p anel @ (black )
No. Equipment Amps
4 Electromechan ical parking brake 30
5
Electromechanical parking brake 30
6
Front door (front passenge r's
30 s ide)
7 Rear exterior light ing 30
Rea r sun shade, closing aid, lug-
8
gage compartment lock, con-
20 venience key, START ENGINE
STOP, fuel filler door
Fu se s and bulb s 283
No. Equipment Amps
9 Power seat adjustment 15
10
Parking system 5
11
Rear seat heating 30
Fu se p an el@ (r e d )
No . Equipment Amps
1 Left belt tensioner 25
2
Right belt tensioner 25
3
Socket/cigarette lighter 20
4
Socket 20
5
Electromechanical parking brake 5
6 adaptive air suspension 15
7
Rear door (front passenger's
30 side)
8 Rear exterior lighting 30
9
Luggage compartment lid con-
30 trol modu le
10 Telephone 5
11
Sound amplifier 30
12
Rear spoiler (Sportback) 20
Fuse panel© (brown)
No . Equ ipment Amps
1
Radio receiver, Sound amplifier/
30/20
MMI unit/drives
2 Tank leak detection system 5
4
AEM control module/battery 10/15
module
6 Battery fan 35
7
Rad io receiver 7,5
8 Rear Seat Entertainment 7,5
9
Automatic d imm ing interior 5/15
rearview mirror/battery module
10 Parking system 5
Fu se pan el@ (gr ee n)
No . Equipment Amps
1 pre sense 5
2
Electromechanical parking brake 5
3
adaptive air suspension 5
4 Automatic transmission 7,5

302 Index
Daytime running lights .... .. .. .. .... . . 44
Declaration of compl iance
Adaptive c ruise control .... .. .. .... .
297
Aud i side assis t ... ... .... .. .. .. .. . 297
Cell phone package ... .... .. .. .... . 297
Convenience key ....... ... .. .. .... . 297
Electronic immobilizer ... .. .. .. .... . 297
Garag e door opener (Homelink) ... .. . 297
Remote control key ....... .. .. .. .. . 297
D ecorative parts/ trim
C leaning ... ... .. ..... ... .. .. .... .
214
DEF
What does t his mean when it appea rs in
the trip odomete r d isplay? . .. .. .. .. . .
27
De fective light bulb warning . . . . . . . . . . . 22
D efrosting (windows)
automatic climate control . ... ... ... ..
73
climate contro l . . . . . . . . . . . . . . . . . . . . . 71
Determin ing cor re ct load limi t ... .. ... 257
Diese l fuel . .. .......... ...... ... .. . 218
D iese l partic ulate fi lter . . . . . . . . . . 2 1, 205
D imensions .. ... . ...... ... .. .. .. .. . 292
Dimming the rearview mirror .. .. ...... 51
D isp lays
C leaning ... ... . ...... ... .. .. .... .
214
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Door/rear lid warning . . . . . . . . . . . . . . . . . 24
Doors
Power child safety loc k .. .. .. .. .... . .
4 0
D river information system
CD/radio display . . . . . . . . . . . . . . . . . . . .
24
D oor/ rear lid warning . . . . . . . . . . . . . . . 24
Exte rio r tempe rat ure d isplay . .. .. .. . . 24
On -boa rd compute r . . . . . . . . . . . . . . . . . 2 5
D river seating position . . . . . . . . . . . . . . . 129
drive select .... ........... .. .. .... . 102
adaptive a ir s uspension/sport . .. .... .
Adaptive dampers .......... .. .... .
Curve light ........... .... ... .. .. .
E ng ine sound ......... .... ... .. .. .
Safety belt tensioner .......... .. .. .
Sport differen tial ......... .. .. .. .. .
Driving safely 102 102
102
102
102
10 2
128
D riving through water . ... .. .. .. .... . 204
D . . . nvmg time .... .... ...... .. .. .. .. .. 25
Dup licate key . . . . . . . . . . . . . . . . . . . . . . . 31
D ust filter
refer to Poll utant fi lter . ..... ... .. .. . 69
Dynam ic steering
2 00
E
Easy entry feature . . . . . . . . . . . . . . . . . . . . 76
Efficiency program Fuel economy messages ........ .. .. .
26
Other equ ipment . ............. .... . 26
Electr ica l accessories (soc ke ts) . ... .. .. . 60
Electromechanical pa rking brake
Emergency bra king . .. ...... ... .. .. .
80
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 79
Parking . .. .. .. .. .. ........... .. .. . 79
Re leas ing and closing .. ..... .... . .. . 79
Starting assist ... .. .... .... ... .. .. . 80
Starting from rest . .... ..... ... .. .. . 80
Starting off w ith a trailer .......... .. . 80
Warning/ind icator lights ........ .... . 16
Elec tromechanica l power assist . ... .. .. 2 00
El ectronic d ifferential lock
Warning/ind icator lights ........... ..
19
Electronic differential lock (EDL) . . . . . . . 195
Warning/ind icator lights ........ .... . 19
Electronic immob ilizer . . . . . . . . . . . . 27, 32
Electronic power cont rol (EPC)
wa rning/indicator light ......... .... .
20
Electronic speed limiter .......... .... . 30
Elec tronic Stabilization Con tro l (ESC) . .. 195
Warning/ind icator lights ..... ... .. .. . 19
Emergency actuat ion
Doo rs .... .. .. .. .. ........... .... .
37
Power sunroof . .. ............. .. ... 42
Rea r lid ... .... .. .. .... . ... ... .. .. . 39
Em b k'
ergency ra 1ng . .......... ...... .. 80
Emergency flasher ... ... ..... ... .. .. . 45
Warning/ind icator lights .......... .. . 23
Emergency re le a se
Se lector lever .... .. .... .... ... .. ..
115
E mergency start ing ..... .. ... ..... .. 285
Emergency towing . ............. .... 287
E mergency wa rn in g triangle .... .. .. .. 2 73
Energy management .... .. ... ..... .. 201
Engine
Compartment .... .. ... ..... ... .. ..
227
Coolant ... .... .. ............. .... 231

306 Index
New tires and wheels
NHTSA 260
Contact ing ... ........... .... .... . 136
Night vision assistant . . . . . . . . . . . . . . . . 105
Cleaning camera lenses .. .. .. .. .. .. . 213
Nitrogen oxide (NOx) cata lytic converter
refertoAdBlue . ........... ... .... . 221
Number of seats ........... .. .. .... . 138
0
Occupant seating posit ions 129
Octane rating ............... .. .... . 217
Odometer . .. ............. .. .. .. .. .. 27
OFF (automatic climate control) . . . . . . . . 72
OFF (climate control) ........ ... .... .. 70
Oil
refer to Engine oil ........ .. .. .... . 227
On-board computer .......... .. .... .. 25
On-Board Diagnostic System (OBD)
Data Link Connector (DLC) ... ... .... . . 29
E lectronic speed limiter . . . . . . . . . . . . . . 30
Malfunction Indicator Lamp (MIL) . . . . . 29
Open doo r/hood/rear lid warning . . . . . . . 24
Opening Hood .. .. .. ................ ... .. . 225
Power windows ........ .. .. .. .. .. .. 40
Rear lid .. .. ............. .. .. .. .. .. 37
Sliding/tilting sunroof ....... .. .... .. 41
Operate your vehicle econom ically and
minim ize pollution .......... ... .. .. . 205
Other equipment (efficiency program) ... 26
Out let .. .. ............... .. .. .... .. 59
p
Paint damage ............. .. .. .. .. . 214
Paint No . .. ... ............ .... .. .. . 291
Parking ..... ................ ..... .. 79
Automatic transmission ............ 111
Valet parking ...................... 41
Parking brake ............. .. .. .... .. 79
also refer to Electromechan ical park ing
b rake .. .. ... ............ .... .. .. .. 79
Park ing system
Adjust ing the disp lay/warning tone .. . 126
C leaning sensors/camera lenses . .. .. . 213 Cleaning the
rear view camera ..... .. 118
Malfunction ..... ................ . 127
Parking system plus ................ 117
Peripheral cameras ............ .... 121
Rear view camera .............. .... 118
Trailer hitch ..... ................ . 127
also refer to Parking systems . . . 117, 118
Parking systems ... ................ . 116
Particle filter
refer to Diesel particu late filter .. .. .. . 21
Parts replacement . ................ . 296
Pass-through with ski sack ............. 67
PASSENGER AIR BAG OFF light .. .. .. .. 160
Passenger pro tection .............. .. 192
Passive safety system ................ 128
Pedals . ........ .. .. .............. . 133
Physical principles of a frontal collision 139
Plastic parts Cleaning .. .... .. ................ . 214
Polish ing . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Pollen filter
refer to Pollutant filter ......... .. .. . 69
Pollutant filter .... ............. .... . 69
Power locking system ................. 33
Locking/unlock ing the veh icle from in-
side .. .. .. .. .. .. .. .. ... ..... ... .. . 36
Selective unlock feature . . . . . . . . . . . . . 34
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Unlocking and locking vehicle .... .. .. . 34
Power seat adjustment Front seats . . . . . . . . . . . . . . . . . . . . . . . . 54
Power steering
refer to Electromechanical power assist 200
Power windows .... ................ .. 40
malfunction ..... ................ .. 41
Pregnant women
Special considerations when wear ing a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 143
pre sense ...... ... ................ . 192
Preventative passenger protection . . . . . 192
Proper occupant seating positions . .... 129
Proper safety belt position . . . . . . . . . . . . 142
Proper seating position
Front passenger . ................. . 130
Occupants ... .. .. ................ . 129
Rear passengers .. ............. .... 131

M N <( (.J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Starting from rest . . . . . . . . . . . . . . . . . . . . 80
Starting off with a trai ler .............. 80
St arting the eng ine . ..... .. .. .. .. .. .. 76
S teer ing
E lectrically ad justab le steer ing whee l .. 75
M anually adjustab le steering whee l .. .. 75
also ref er to Electromechanica l power as-
sist . .... .. ................. .. ... 200
S teer ing whee l
E asy entry featu re ..... ... .. .. .. .. .. 76
I ndicator light . . . . . . . . . . . . . . . . 18, 200
Steer ing whee l heating . ... .. .. .. .. .. 74
Steer ing whee l co lumn
Ad justing e lec trica lly ...... .. .. .. .. .. 75
Ad justing manually .... ... .. .. .. .. .. 75
Steer ing whee l with t iptronic . .. .. .. .. . 113
Steps fo r determining correct load limit . 257
Stopping the engine . . . . . . . . . . . . . . . . . . 77
Storage . . . . . . . . . . . . . . . . . . . . . . . . 60, 64
S tronic transmission Launch Contro l Program . . . . . . . . . . . . 113
S tron ic (automatic t ransm ission) . .. .. . 109
Sunroof ... .. .. ............. .. .. .... 41
Sun shade . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Sun visors . ................ ... ... ... 4 8
Symbo ls
refer to Warning/ind icator lights .. .. .. 12
T
Tachometer . . . . . . . . . . . . . . . . . . . . . 1 2, 24
Ta il lights
C le a ning . .. ................. .. ... 2 13
T OI clean diese l
refer to AdBlue ............ ... ... .. 22 1
T ec hnica l data . ... .. .... ... .. .. .... . 29 1
Techni cal mod ifications ..... .. .. .. .. . 297
T emperature d isp lay ..... ... .. .. .. .. .. 24
Tether anchors ... .. .... ... .. .. .. ... 190
Tethe r strap . ................ ... ... 190
Textiles Cleaning . .. .... ............. .. .. . 215
The first 1,000 mi les (1,500 km) and after -
wards ..... .. .. ... .. ..... ... .. .. ... 203
Three-zone cl imate co ntrol .. .. .. .. .. .. 70
Tie-downs . . . . . . . . . . . . . . . . . . . . . 66, 135
Inde x 309
Tips for the environment
Saving f uel . ... .. .. . ... ...... ... .. . 63
t iptron ic (automat ic t ransm ission) 109, 113
Tire pressure .. .. .. ................. 252
T ire pressure mon itoring system ... .. .. 270
Tires ...... ... .. .... .......... ..... 240
Se rv ice life .. .. .. .. .......... ..... 258
Speed ra tin g letter code ........ .... 263
T ire manufac turing date
T ire specifications . .. .. ..... ... .. . .
Tread depth ....... . .. .. ..... ... . .
U niform tire quality grading .. ... .. . . 2
62
262
258
266
Winter tires . .. .. ................. 267
T ires and vehicle load lim its ....... .. .. 255
Tires and wheels Check ing t ire pressu re .. .... ... ... .. 252
Co ld tire inflation pressure .......... 247
D ime nsions .. .. .. ................. 260
General notes .. .. .... ........... .. 240
G lossary of tire and loading term inolo -
gy .. ... .. .. .. .... . ... ...... ... .. 242
Low aspect ratio tires . .. ..... ... .. .. 269
New tires and wheels ........... .... 260
Rep lacing . .. .. .. .... ........... .. 261
Snow cha ins . .. .. ................. 268
Tires and veh icle load limits ......... 255
Wheel bolts ... .. .. . .. .... .... .. .. 269
Winter tires ...... ................ 267
Tire service life .. .. ............... .. 258
T oo ls ...... .. .. .. .... ............. 273
Torn or frayed safety belts ............
141
Towing
Tow truck procedures ........... .... 287
T PMS
T ire pressure monitoring system ... .. 2 70
T ra iler tow ing . .. .. .. ... ....... ..... 208
Operating instr uctions ............. . 208
Pa rking system . .. ............... .. 12 7
T echnical requiremen ts . . . . . . . . 208, 209
T rai le r tow ing tips . ... ...... ... .. .. 210
Trai n (transporting your veh icle) ...... . 289
Transmiss ion . ... .. .. .. ... ..... ... .. 109
T rans miss ion malfunc tion ( indi cato r
li gh t) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
T ransport Canada ......... .......... 136
T ransporting yo ur vehicle . ..... ... .. .. 289
T read Wea r Ind icator ( TW I) ....... .. .. 258
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