2014 AUDI S4 power steering

th e brakes or hold the pedal down too
long or too ofte n. This cou ld cause the
brakes t o get hot and dimi nish b raking
efficiency .
- Do not "r ide t he b rakes" by resting your
foot on the pedal when you do n ot intend
t o brake . Th is may cause the brakes to
overheat, premature wear and increased
stopp ing distance.
- Under certa in climat ic and operating
condit ions such as passing through wa­
ter, driving i n heavy rai n or after wash ing
the vehicle, the effe ct iveness of the
brakes can be re duced. In winter, ice can
acc umulate on the brake pads, linings,
discs and drums. Carefully apply brakes
f or a test. Brakes will dry and ice coat­
ings will be cleaned off after a few care­
ful brake app lications.
- Driv ing for an extended period of time on
salt-covered roads w ithout using your
brakes can also affect braking efficiency .
Clean off accumulated salt coating from
brake discs and pads w ith a few caref ul
brake applicat io ns.
- If you damage the front spo iler, or if you
install a diff ere nt spoiler, be sure the air
flow to t he front b ra kes is not obstr uct­
ed . Otherwise the br ake sys tem co uld
overheat red ucing the effectiveness of
the ent ire brake sys tem.
- F ailure of one br ake circui t will im pair
the brakin g capability res ulting in an in­
creased stop ping distance . Avoid driving
the vehicle and have it towed to t he near­
est author ized Audi dealer or qualified
workshop.
- Never let the vehicle ro ll to a stop w ith
the engine shut off.
- If the brake booster is not work ing, the
brake pedal must be pressed considera­
bly harder to make up for the lack of
booster assistance.
Int ellig ent technolog y 191
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps
t he driver when steering.
Power steer ing adap ts electronically based on
t he ve hicl e spee d.
Indicator lights and messages
• Steering defect ive! Do not drive vehicle!
If this indicator light turns on and stays on
and t his message appears, the power steer ing
may have failed.
Do
not continue driving. See your authorized
Audi dealer or a qualified repair facility for as­
s istance.
':rij Dynamic steering: Sy stem fault! You can
continue dr iving
If the indic ator ligh t turns on and the mes­
sage appears, the steering may be more diffi­
cu lt to move o r more sensitive tha n usual. The
steering wheel may a lso be at an ang le when
driv ing straight.
Drive slowly to your a uth orized Audi dea ler or
qualified workshop to have the ma lf u nction
corrected.
(;rij Dynamic ste ering : initializing
If this drive r message appea rs and the indica­
tor light is flas hing on the instrument panel,
dynam ic steer ing* i s being rein itia lized. After
sta rting the engine, the stee ring w heel will
move s light ly . Re- initializa tion might be nec ­
essary if the stee ring wheel was moved hard
to the left and right whi le the vehicle was not
moving. The display goes out as soon as initi­
alization is complete .
A WARNING
-Have the dy namic stee ring* system mal­
f u nction repa ired as soon as possible by an
authorized Audi dealer or qualified work­
shop - risk of acc ident!
-
•
•

192 Intelligent technology
(D Tips
-If the . or 'Tj indicator light only stays
on for a short time, you may continue
driving.
- The dynamic steering* stability systems
are not available in the event of a system
malfunction.
- For additional information on dynamic
steering*, refer to
c:> page 113.
Driving with your
quattro
App lies to vehicles: with a ll-wheel drive
With all-wheel drive, all four wheels are 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
c:> page 186.
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
c:> page 187. With the sport differen­
tial*, power distribution to the rear wheels is
variable and can be adjusted with drive select
c:>page 113.
The all-wheel drive concept is designed for
high engine power . Your vehicle is exception­
ally powerful and has excellent driving charac­
teristics both under normal driving conditions
and on snow and ice. Always read and follow
safety precautions
c:> & .
Winter tires
When driving in the winter , your vehicle with
all-wheel drive has an advantage, even with regular tires. In winter road conditions it may
be advisable to mount winter tires (or all-sea­
son tires) for improved driveability and brak­
ing: these tires must be mounted on
all four
wheels .
See also c:> page 246, Winter tires .
Tire chains
Where tire chains are mandatory on certain
roads, this normally also applies to vehicles
with all-wheel drive
c:> page 247, Snow
chains.
Replacing wheels/tires
Vehicles with all-wheel drive must always have tires of the same size. Also avoid tires
with different tread depths. For details see
page
c:> page 242, New tires and replacing
tires and wheels.
Off-Road driving?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle.
It is
therefore best to avoid rough tracks and un­ even terrain as much as possible. Also refer to
c:> page 195.
A WARNING
-
Always adjust your driving to road and traf-
fic conditions. Do not let the extra safety
afforded by all-wheel drive tempt you into
taking extra risks.
- Although the all-wheel drive is very ef­
fective, always remember that braking
capacity is limited by tire traction . You
should therefore not drive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
could begin to slide on top of the water
(aquaplaning). If this should occur, you
will have no warning from a sudden in­ crease in engine speed as with a front­
wheel drive vehicle. Always drive at
speeds which are suited to the road con­
ditions -risk of crash.

-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 summer and winter
tires are designed for the cond itions that
are typ ic al in those seasons. Aud i recom­
mends using w inter t ires du ring the win-
Glossary of tire and loading terminology
Accessory weight
means the comb ined weight (in excess of
those standard items which may be replaced)
of automatic tra nsmission, power steering,
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 ratio of the height to the width of
the tire in percent . Numbers of 55 or lower in­
d icate a low sidewall for improved steering re­
sponse and better overall handling on dry
pavement .
Bead
means the pa rt of the ti re that is made of
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the rim.
Bead s eparation
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 231
ter months . Low temperatu res signifi­
cantly decrease the elastic ity of summer
t ires, which affects traction and braking
ability. If summer tires are used in very
co ld temperatures, cracks can form on
the tread bars, res ulting in permanent
ti re damage that can cause loud drivi ng
noise and unbalanced tires. Aud i is not
responsib le for this type of damage.
- Burn ished, polished or chromed rims
must not be used in winter weather. Th e
surfa ce of the rims does not have suffi­
c ien t cor rosion pro te cti on for this and
c o ul d be pe rmanen tly damaged by road
salt or similar substances. This damage
is not covered by warranty.
Cold tir e inflation pressure
me ans the t ire press ure re commended by the
vehicle manufacturer fo r a tire o f a des igna ted
size that has not bee n driven for more than a
couple of miles (k ilomete rs) at low speeds in
the three hour pe riod before the tire press ure
is measured or adjusted.
Curb weight
means the weight o f a motor vehicle with
standard equipment including the maximum
capacity of fuel, o il, and coolant, air cond i­
tion ing and additional weight of optiona l
equipment.
E xtra load tire
means a tire design to operate at higher loads
and at higher inflation pressures than the cor­
responding standard tire. Extra load tires may
be identified as "XL", "xl", "EXTRA LOAD", or
"RF" on the sidewall.
Gross Axle Weight Rating ("GAWR")
means the load-carrying capacity of a single
axle system, measured at the tire-ground in-
ter~ces .
~
•
•

Right cockpit fuse assignment
Fig. 209 Right cockpit: fuse pane l wit h plastic clip
Fuse panel @ (black )
No . Consumer
Amps
5 Steering
column switch
5
modu le
7
Terminal 15 diagnostic con-
necta r 5
8
Gateway (Databus diagnos-
5
tic interface)
9 Supplementary heater 5
Fuse panel@ (brown )
No .
Consumer Amps
1 CD/DVD player 5
2 Wi-Fi
5
3 MMI/Radio 5/20
4 Instrument cluster
5
5 Gateway
(instrument cluster
5
control module)
6 Ignition lock
5
7 Light switch
5
8
Climate control system
40
blower
9 Steering column lock
5
Fuse s and bulb s 263
No. Consumer
10 Climate
control system
11 Te
rm inal 30 diagnostic con-
n ectar
12 Steering
column switch
module
Right luggage compartment fuse
assignment Amps
10
10
5
F ig . 210 Right luggage compartment: fuse panel w ith
plast ic cl ip
Fu se panel @ (bla ck)
No . Consumer Amps
2 Rear window heater (Ca brio-
30
let)
3 Power
top latch (Cabriolet)
30
4 Power top hyd
raul ics (Cab-
so riolet)
Fuse pan el@ (black )
No. Consumer Amps
Luggage compartment lid
1 control
module (allroad)/
30/10
Power top contro l modu le
(Cabriolet)
2 Retractable rear spoiler
10
(RS 5 Coupe)

Index 283
-----------------------------------.......
Daytime running lights... ... .. .. .. 47, 48
Declaration of compliance Adapt ive cruise control .... .. .. .. .. . 278
Aud i side assist .......... .. .. .. ... 278
Cell phone pa ckage ....... .. .. .. .. . 278
Conve nience key ... .... ... .. .. .. ... 278
Elect ronic immobilizer .. ... .. .. .. .. . 278
Homelink universa l remote contro l .. . 278
Remote control key ....... .. .. .. .. . 278
D ecora tive parts/ trim
C lean ing ... .... ...... ... .. .. .. ... 206
Defective light bulb warning . . . . . . . . . . . 2 1
Defrosting (windows) ....... .. .. .. .. .. 78
D etermi ning correct load limi t ... .. .. . 239
Dig ita l clock ........... ...... .... ... 12
Dig ita l compass . .. ..... ... .. .. .. .... 56
D imensions .. ............. .... .. ... 273
Dimming the rearview mirror .. .. .. .. .. 51
D isp lays
C leaning ... .. .... .... ... .. .. .. ... 206
D oors
C hi ld safe ty loc ks ......... .. .. .. .. .. 4 2
emergency loc king ........ .. .. .. .. .. 38
Driver information system Enhanced sh ift indicato r .... ... ... ... 28
Open doo r or front lid warning . . . . . . . . 24
Outside temperat ure display .. .. .. .. .. 24
Sound system display . . . . . . . . . . . . . . . 24
Driver seat
refer to Seat ing pos ition 129
Driving off road ... ...... ... .. .. .. ... 199
D riving safe ly ............. .... .. ... 128
Driving through water . . . . . . . . . . . . . . . 195
D riving time . . . . . . . . . . . . . . . . . . . . . . . . 25
Dust filter
refer to Po llutant filte r (automatic AC
sys tem) .. .. ............. .... .. .. .. 76
Dynamic steering . . . . . . . . . . . . . . 113 ,191
E
E85 (Fue l) . . . . . . . . . . . . . . . . . . . . . . . . . 210
E ffi ciency program ......... .. .. .. .. .. 2 7
Fu el economy messages . . . . . . . . . . . . . 29
M emory leve ls . . . . . . . . . . . . . . . . . . . . . 25
Othe r equipment . . . . . . . . . . . . . . . . . . . 28
Shift indicator ........... .. .. .. .... 28 E
lectro -mechan ica l power ass ist ... .. .. 191
E lectromechanica l pa rk ing brake
E mergency bra king ................ . 87
Ind icator lig ht . .. .... ........... .. . 85
P arking ... .. .. .. ................. . 86
Re leas ing and closing ... .... ... .. .. . 85
Starting assist ...... .. .. ..... ... .. . 86
Starting from rest . ... .. .... ... .. .. . 86
Starting off w ith a trailer ........ .. .. . 87
Warning/ind icator lights .......... .. . 16
El ectronic differential lock
Warning/indicator lights ..... ... .. .. . 18
El ectronic d ifferential lock ( EDL) ... .. .. 186
Wa rning/ind icator lights ........ .. .. . 19
E lectronic immob ilizer . . . . . . . . . . . . 12, 38
E lectronic power con trol
(EPC) warning/indicator light . . . . . . . . . 20
El ectronic speed limi ter . . . . . . . . . . . . . . . 31
E lectronic stab ilizat ion contro l
offroad mode . . . . . . . . . . . . . . . . . . . . . 188
Sport mode . . . . . . . . . . . . . . . . . . . . . . 188
E lectronic Stabilization Cont ro l (ESC) ... 186
Warning/ind icator lights .......... .. . 18
Emergency ac tua tion
Doors . ... .. .... ... .. .. ..... ... .. . 38
Ignition key ..... .. . .. .. ..... ... .. . 35
Rea r lid . . . . . . . . . . . . . . . . . . . . . . . 41, 42
Slid ing/ti lting s unroof .............. . 45
E merge ncy br aking . .... ......... .. .. . 87
Emergency flasher ................. .. 49
w . /' d' l' h arnmg m 1cator 1g ts . . . . . . . . . . . . . 23
Emergency key .. ...... ............. . 33
Starting engine .. ............. .. .. . 82
Emergency operation Emergency bra king funct ion (parking
brake) . ... .. .... .. . .. .. ..... ... .. . 87
E mergency starti ng ............. .... 266
Emergency towing . ................. 268
Energy management .. .. ..... ... .. .. 193
Battery power . . . . . . . . . . . . . . . . . . . . . 17
Driver notification . . . . . . . . . . . . . . . . . . 17
En gine
Compartment .. ...... ........... .. 216
Coolant ... .. .. .... .. ... ..... ... .. 221
Data ... .. .. .... .. . .. .. ..... ... .. 274
Hood ... .. .. .... .. . .. .. ..... ... .. 214
Starting . . . . . . . . . . . . . . . . . . . . . . 80, 83
•
•

288 Index
Parking system 116
Rear .. .... ............... .. .... . 116
Rear, w ith rear v iew camera ... .. .... . 118
Parking system (rear) ..... .. .. .. .. .. . 116
Ad justing the warning tones .. .. .... . 117
Parking system (rear, w ith rear view cam-
era) Parking mode 1 ........ .. .. .. .. .. . 120
Parking mode 2 .......... .. .. .... . 121
Safety precautions ...... .. .. .. .. .. . 118
Switching on/off .......... ... .... . 119
Switching rear view camera on/off ... . 122
Partition net . . . . . . . . . . . . . . . . . . . . 70, 71
Parts replacement ......... .. .. .... . 277
Pass-through . . . . . . . . . . . . . . . . . . . . . . . . 73
PASSENGER AIR BAG OFF light ... .. .. . 157
Passive safety system ........ ... .... . 128
Pedals .. .. .. .. . .......... .. .. .. .. . 133
Physical principles of a frontal collision 139
Plastic parts Cleaning ... ................ ..... . 206
Polishing .. .... ............. .. .... . 206
Pollutant filter (automatic AC system) ... 76
Power seat adjustment . . . . . . . . . . . . . . . . . . . . 60
Power locking system . . . . . . . . . . . . . . . . . 32
E mergency locking ...... .. .. .. .. .. .. 38
Power windows .......... .. .. .. .. .. 43
Rear lid . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Selective unlock feature ......... .. .. 37
Settings ... ................ ..... .. 37
Sliding/tilting sunroof ....... .. .. .. .. 43
Power steering
re fer to Electro-mechanical power as-
sist .. ... ................. .. .... . 191
Power window
Conven ience opening/closing . .. .... .. 43
Power windows .............. .. .... .. 43
Child safety locks .......... ... .. .. .. 43
Malfunctions ............. ... .. .. .. 44
Pregnant women Special considerations when wearing a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 143
Proper occupant seating positions .... . 129
Proper safety belt pos it ion . . . . . . . . . . . . 142 Proper seating position
Front passenger . ................. . 130
Occupants ... .. .. .. .............. . 129
Rear passengers .. ............. .... 131
Protecting ...... .. ............. .... 206
Protective liner .. .. ..... ........... .. 74
Q
Quartz clock . . . . . . . . . . . . . . . . . . . . . . . . 12
quattro
refer to all-wheel drive .......... ... 192
Question What happens to unbelted occupants? 139
Why safety belts? . . . . . . . . . . . . . . . . . 138
R
Radiator fan .. .. .. ............. .. .. 223
Rain/light senso r
Headlights .... .. ............. .... . 47
Intermittent (w indshield wipers) ...... 53
Sensor defective . . . . . . . . . . . . . . . . . . . . 22
Reading lights . . . . . . . . . . . . . . . . . . . . . . . 50
Rear door sun shade . . . . . . . . . . . . . . 52, 53
Rear fog lights ........... ......... .. 47
Rear lid
Automatic operation . . . . . . . . . . . . . . . . 40
Emergency release . . . . . . . . . . . . . . 41, 42
Escape handle . .. ............. .... . 42
Opening and closing ..... ...... .. .. . 39
Rear light Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear view camera
Parking mode 1 .. ............. .... 120
Parking mode 2 .. ................ . 121
Rearviewmirror ... ..... ........... .. 51
Rear window heating ............ .... . 78
Rear window sun shade . . . . . . . . . . . . . . . 53
Rear window washer system ....... ... . 53
Recirculation mode (automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Refuell ing .. .. .. .. .. ........... .... 212
Release lever for hood ........... .. .. 214
Remote control Homelink ..... .. ................ . 124

290 Index
Selector lever ..... ........ .. .. .... .. 92
Emergency release . . . . . . . . . . . . . . . . . . 98
Selector leve r eme rgency release . . . . . . . 98
Service and disposal Safety belt pretens ioner . .. .. .. .. .. . 145
Service interval display ................ 29
Service position
refer to Replac ing wiper blades . .... .. 55
SET button . . . . . . . . . . . . . . . . . . . . . . . . . 11
Shift indicator (eff iciency p rog ram) . ... .. 28
Shutting down vehicle .......... .. ... 197
Side airbags Descript ion .............. .. .. .. .. . 161
H ow they work . . . . . . . . . . . . . . . . . . . . 162
side assist Adjusting the brightness ............ 111
Sensor range . . . . . . . . . . . . . . . . . . . . . 110
Side assist Activating and deactivating .......... 111
C leaning the sensors .............. . 205
Description .... ........ ...... .... . 109
Side curta in airbags ........ .... .... . 164
Description . ........... .. .. .. .. .. . 164
Ho w they work ............ ... .... . 165
Safety instructions ................. 166
Side marker lights ............. .. ... . 47
Ski sack ... ............... ........ .. 73
Sliding/tilting sunroof Convenience opening/closing ..... .. .. 43
Emergency closing ............ .... .. 45
Opening and closing ....... ... .. ... . 44
Sunshade . . . . . . . . . . . . . . . . . . . . . . . . . 44
Snow chains ............ .. .. .. .. .. . 247
Socket 12-volt .. .. ... .... ...... .. .. .. .. .. 64
Sound system display . . . . . . . . . . . . . . . . . 24
Sources of information about child re-
straints and their use ......... .. .... . 185
Spare tire .. .. ................ ... ... 252
Speedometer .............. ... .... .. 12
Speed rating letter code ..... .... .... . 243
Speed warning system ........ .. .... .. 87
Sport differential ................... 113
Ind icator lamp ............ ... .... .. 22
START ENGINE STOP button (convenience
key) .. .. .. .... ........... .. .. .. .. .. 84 START ENGINE STOP
button (Convenience
key) ............................... 83
Starting from rest ............... .... . 86
Starting
off with a trailer ......... .... . 87
Starting the engine . . . . . . . . . . . . . . 80, 83
Steering Locking the steering ............ ... . 80
also refer to Electro-mechanical power
ass ist .. .. .. .. .. .. ........... .. .. 191
Steering wheel Adjusting steering column ...... .. .. . 80
Indicator light . . . . . . . . . . . . . . . . 18, 191
Steps for determining correct load limit . 239
Stopping the engine . . . . . . . . . . . . . . 82, 84
Storage ........ .. .. ........ ...... .. 64
Storage compartments . . . . . . . . . . . 66, 74
S tronic .. .. .. .. . .............. .. .. . 91
Selector lever .... ... .......... .. .. . 92
S tronic transmission Emergency release ....... ...... .. .. . 98
Launch Control Program ........... .. 97
Sunroof .... .. .. .. .. ........... .... . 44
also refer to Sliding/tilting sunroof 44, 45
Sun shades
Rear doors . ..... .............. 52,53
Rear window . . . . . . . . . . . . . . . . . . . . . . . 53
Sun visors .. .. .. .. .... ......... .... . 52
Symbols
refer to Warning/indicator lights ...... 13
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 11
T ail lights
Cleaning .. .... .. ................ . 205
Tec hnical modifications .............. 278
Tether anchors .... ............. .... 183
T ether strap . . . . . . . . . . . . . . . . . . . . . . . 183
Textiles Cleaning .. .. .. .. .. ..... ...... .. .. 207
The first 1,000 miles (1,500 km) and after-
wards ...... .... .. .. ........... .... 195
T ie-downs . . . . . . . . . . . . . . . . . . . . . 72, 135
t ip tron ic .... ... .. .. ........ ...... .. 91
Automatic Shift Lock (ASL) . . . . . . . . . . . 93
Driving ..... .. .. .. ........... .... . 93
Emergency mode .............. .. .. . 97