2017 AUDI A7 power steering

Intelligent Technology
Intelligent Technology
Electronic Stabilization
Control (ESC)
Description
Elect ronic Stabilization Control (ESC) suppo rts
driver safety.
It red uces the risk of slipping and
improves dr iving stability. ESC detects crit ica l sit­
uations such as the veh icle oversteering and un­
dersteering or the wheels are sp inning. The vehi­
cle is stabilized by app lying the brakes or reduc ­
ing engine torque. As soon as the ESC is active ly
regulat ing, the
D.1 indicato r light blin ks in the in­
s trumen t clus ter.
The fo llow ing systems are integrated in the ESC :
Ant i-lock braking system (ABS)
ABS p revents the whee ls from locking whe n brak­
ing. The vehicle can sti ll be steered even during
hard brak ing. Apply steady press ure to the brake
pedal. Do not pump the pedal. A puls ing in t he
b rake pedal indicates that the system is acting to
s tabilize the vehicle .
Br ake assist system
The brake assist system can decrease brak ing dis­
tance . It increases brak ing power when the driver
presses the brake pedal q uick ly in emergency sit­
uations . You must press and hold t he b rake pedal
until the dangerous sit uat io n is over . In veh icles
with adapt ive c ruise control*, the bra ke as sist
sy stem is more sensitive if t he di sta nce detec ted
t o the vehicle dr iv ing ahead is too small. On
ve hicl es with act ivated and f unct io ni ng night vi ­
sion assist*, the brake assist system can respond mo re sensit ively if there is a warning .
Anti-slip regulation (ASR)
ASR red uces eng ine power when the drive w heels
be gin sp inning an d adapts the force to the road
conditions. This makes it easie r to sta rt, acceler ­
ate and dr ive up h ills.
Electronic differential lock (EDL)
E DL a ppl ies the bra kes to a wheel tha t st art s
sp inning and tra nsfe rs t he dr ive powe r to t he
120
other driving whee ls. This func tion is no t ava ila ­
ble at hig her speeds.
I n extreme cases , EDL automat ic al ly swi tches off
to keep t he b rake o n the br aked wheel from ove r­
heating. The ve hicle is still working correct ly. ED L
will switc h on again automatically when condi­
tions have returned to normal.
Steering recommendation
The ESC he lps to s tabili ze th e vehicle by ch ang ing
t h e s teer ing torque.
I n veh icles with dynamic s teer ing*, ESC a lso
helps to stab ilize the s teeri ng in cr it ic al situ a­
tions.
Selective wheel torque control
Se lective wheel to rque control is used when d riv­
i ng on curves . The front whee l on the ins ide of
t h e curve or both whe els on the i nside of th e
cu rve are braked se lectively as needed. This al­
l ows mo re pre cise driving in curves .
Automatic post -collision braking system
The "a utomat ic post -coll is io n braking system"
can help to reduce the risk of sl iding and of addi­
tiona l co llisions after an acc iden t. If the a irbag
c on tro l modu le dete cts a collision above a cer tain
vehicle speed, the veh icle is braked by t he ESC.
The veh icle does not brake automatically if:
- the drive r presses the accelerator pedal, or
- the bra king force generate d by the pressed
brake pedal is greater than the b raking force
that would be in itiated by the system, or
- the ESC, the bra ke system or the vehicle elect ri­
cal system are not functioning.
A WARNING
- The ESC and its integ rated systems can not
overcome the lim its imposed by natura l
p hys ica l laws. Th is is es pec ially i mpo rtan t
on s lippery or we t roads. If the system s be­
g in a cting to s tabili ze yo ur vehicle, you
should immedi ately alte r your speed to
match the road and tra ffi c conditions. Do
not let the inc reased safety provided tempt

Intelligent Technology
necessary. This causes the brakes to over ­
heat and increases bra king distance and
causes wear .
- Befo re driving downhi ll a long distance on a
steep hill, decrease your speed and select a
l ower gear. This makes use of the engine
braking effect and relieves the brakes. If
you need to brake additionally, b rake in in­
t e rvals a nd not continuously .
(D Tips
-If the brake booster is not working, you
must press the brake pedal with much more
force than normal.
- If you retrofit you r vehicle with a front spoil­
e r, whee l covers o r similar items , make sure
that the a ir flow to t he fron t wheels is not
i nte rr u pted . Othe rw ise the brake sys tem
ca n become too hot .
Electromechanical
steering, dynamic
steering
The electromechanical steering supports the
driver 's st eering movements.
Power steering adapts elec tronically based on
the vehicle speed .
Indicator light s and mes sage s
• Do not drive vehicle: steering defective
If thi s in dica tor light t urns o n and st ays o n and
t his mess age appears, t he power s teer ing m ay
have fai led.
St op the veh icle in a safe lo cat io n as soo n as pos­
sib le. Do
not c ontinue dr iving. See an author ized
Aud i dealer o r auth o rize d Aud i Serv ice Facili ty for
assis tance.
(;:r,n Steering : Sy stem fault You can continue
driving
If the indicator lig ht tur ns on and the message
appears, the steering wheel may be mo re diff i­
cul t to m ove or mo re sensit ive tha n usua l. The
s teer ing whee l may also be at an angle when
d riving s traight .
124
Drive slowly to an a uth orized Audi dea ler or au ­
thorized Audi Serv ice Facility to have the mal­
funct ion corrected .
,Ion Dynamic steering: Initializing
If the indica to r li gh t is blinking and this message
appea rs, dy namic stee ring* is be ing initiali zed.
The steer ing whee l will be easy to move afte r
s ta rt ing t he en gine . Re- ini tializ ation mig ht be
necessary if the steering wheel was moved hard
to the left and r ight while the veh icle was not
moving . The d isp lay turns off if the in it ia li zation
was s uccessful.
(D Tips
- If the . or ,Ion indicato r light only stays on
f or a s ho rt time, you may cont inue driving .
- The dynamic stee ring stability systems
¢
page 1 20 are not ava ila bl e in the event of
a system mal function.
- For add itiona l information on dynamic
steering, re fer to
¢ page 105.
All wheel drive (quattro)
Applies to: vehicles with all wheel drive
In all wheel drive, all four wheels are powered.
General information
In all whee l drive, the dr iv ing power is divide d be­
tween all four whee ls. This happens automatical ­
l y depending on yo ur driv ing behavior as we ll as
the cur rent road conditions . Also see
¢ page 120 , Electronic Stabilization Control
(ESC).
A center d ifferential distributes the driving powe r
varia bly to the front and rea r ax le. It wor ks to­
gether w ith selective whee l torque contro l, w hich
activates w hen d riving through curves
¢ page 120 . With the sport d ifferent ial*, power
dis tribution to the rear wheels is var iable and can
be adjus ted wi th drive select¢
page 105 .
The all wheel drive concept is designed fo r high
engine power . Yo ur vehicle is except iona lly pow­
erfu l and has excellent driving cha rac teristics
bot h un der normal d riving condi tions and on
snow and i ce. A lways read and follow safe ty pre-
c auti ons ¢
,&.. IJll-

Fuses
Front passenger side
cockpit fuse assignment
Fig. 212 Front passenger side cockpit: fuse panel wit h
plastic bracket
Fuse panel @ (red)
No. Equipm ent
1 Infotainment, CD changer
2 Inf
ota inment (display)
3 Emergency call
Fuse panel @ (brown)
No. Equipment
1 Climate control system
2 Climate control
system (blower)
3 Diagnostic interface
4 Electrical ignit ion lock
5 Electronic steering column lock
6 Steering column switch module
7 Power steering column adjustment
8 Light switch
9 Head-up display
10 Instrument cl uster
11 Infotainment, DVD
changer
252
Luggage compartment
fuse assignment
Fig. 213 Luggage compa rtme nt: fuse panel with plast ic
bracket
Fuse panel @ (black)
No . Equipment
1 Tra
iler hitch/220 volt socket
2 Trailer hitch/climatized cup holder
3
Trailer hitch/adjusting front passenger's
seat from the rear
4 El ec trom echan ical parking brake
5 Electromechanical parking brake
6 Front door (front passenger's side)
7 Rear exterior lighting
8 Central locking, closing aid
9 Seat heating (fro nt)
11 Seat heating
(rear), climate control system
12 Trailer hitch
Fuse panel @ (red)
No. Equipment
1 L
eft safety belt tensioner
2 Right safety belt tensioner
3 Ad Blue tank (diesel engine)/fuel pump
4 Ad Blue tank (diesel engine)/engi ne mount
(gaso lin e eng ine)
5
Se nsor-controlled luggage compartment
lid
6 Air suspension, adaptive dampers
7 Rear door (front passenger's side)
8 Tail lights
9 Luggage compartment lid

M
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . 264
Maintenance intervals . . . . . . . . . . . . . . . . . 209
Malfunction Indicator Lamp (MIL) . . . . . . . . 25
Massage function . . . . . . . . . . . . . . . . . . . . . . 48
Mechanical key . . . . . . . . . . . . . . . . . . . . . 28, 29
M emory function . . . . . . . . . . . . . . . . . . . . . . 50
Mirror Dimming ... ............... .. .. .. .... 44
Van ity mirror . . . . . . . . . . . . . . . . . . . . . . . . 45
Mirrors Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 44
Monito ring the Advanced Airbag System . . 160
Multifunction steering wheel . . . . . . . . . . . . . 22
N
Natural leather care/cleaning
NHTSA 238
Contacting . . . . . . . . . . . . . . . . . . . . . . . . . 136
N ig ht vision assist . . . . . . . . . . . . . . . . . . . . 102
C leaning the camera . . . . . . . . . . . . . . . . . 236
Nitrogen oxide (NOx) catalytic converter
refer to Ad Blue . . . . . . . . . . . . . . . . . . . . . . 195
Number of seats . . . . . . . . . . . . . . . . . . . . . . 140
0
Occupant seating positions . . . . . . . . . . . . . 130
Octane rating . . . . . . . . . . . . . . . . . . . . . . . . 191
Odometer . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
OFF (4-zone deluxe automatic climate con -
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
OFF (deluxe automatic climate control) 60
Oil Indicator light . . . . . . . . . . . . . . . . . . . . . . . 18
also refer to Engine oil . . . . . . . . . . . . . . . 202
Oi l change interval . . . . . . . . . . . . . . . . . . . . 209
On -board computer . . . . . . . . . . . . . . . . . . . . 22
On -Board Diagnostic System (OBD)
Data Link Connector (DLC) . . . . . . . . . . . . . . 25
Electronic speed limiter . . . . . . . . . . . . . . . . 26
Malfunction Indicator Lamp (MIL) . . . . . . . 25
~ Opening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
;:::: Fuel filler door . . . . . . . . . . . . . . . . . . . . . . 193
" ~ Hood . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201 0
~ Luggage compartment lid . . . . . . . . . . . . . . 33 ' Index
Sunroof... .. .. .. .................. .. 37
Windows ....... .. ................. . 36
Open ing/closing
With the central locking switch . . . . . . . . . 31
With the convenience key . . . . . . . . . . . . . . 30
Opening and closing On the door lock cylinder . . . . . . . . . . . . . . . 32
Other consumers (efficiency program) . . . . . 23
Overboost (automat ic transmission) . . . . . . . 80
Overview (Cockpit) . . . . . . . . . . . . . . . . . . . . . . 6
p
Paint damage . . . . . . . . . . . . . . . . . . . . . . . . 237
Paint number . . . . . . . . . . . . . . . . . . . . . . . . 260
Parking aid Cleaning sensors/camera . . . . . . . . . . . . . 236
Parking brake
refer to Electromechanical parking brake . 74
Parking lights . . . . . . . . . . . . . . . . . . . . . . . . . 40
Parking system Adjusting the d isplay/warning tone . . . . . 118
Cleaning the rearview camera . . . . . . . . . . 110
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . 118
Parking system plus . . . . . . . . . . . . . . . . . . 109
Peripheral cameras . . . . . . . . . . . . . . . . . . 113
Periphera l display . . . . . . . . . . . . . . . . . . . 109
Trailer hitch . . . . . . . . . . . . . . . . . . . . . . . . 118
also refer to Parking systems ...... 109, 110
Parking systems . . . . . . . . . . . . . . . . . . . . . . 108
Rearview camera . . . . . . . . . . . . . . . . . . . . 110
Parking (automatic transmission) . . . . . . . . . 78
Parts repla cement . . . . . . . . . . . . . . . . . . . . 266
Pass-through . . . . . . . . . . . . . . . . . . . . . . . . . 58
PASSENGER AIR BAG OFF light . . . . . . . . . . 160
Passenger protection . . . . . . . . . . . . . . . . . . 138
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Pedestrian detection . . . . . . . . . . . . . . . . . . 102
Periphera l display . . . . . . . . . . . . . . . . . . . . . 109
Physical principles of a frontal collision . . . 141
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 237
Pollen fi lter
refer to Pollutant filter . . . . . . . . . . . . . . . . 59
Pollutant filter . . . . . . . . . . . . . . . . . . . . . . . . S9
Power Seat adjustment . . . . . . . . . . . . . . . . . . . . . 48
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
275

Index
Speed limiter . . . . . . . . . . . . . . . . . . . . . . . . . 26
Speed warning system . . . . . . . . . . . . . . . . . . 85
Spoiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Sport differentia l . . . . . . . . . . . . . . . . . . . . . 105
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 19
Star button . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Start-Stop system . . . . . . . . . . . . . . . . . . . . . . 71
Start/Stop system Engine does not switch off . . . . . . . . . . . . . 72
Engine starts automatically . . . . . . . . . . . . 72
Indicator lights . . . . . . . . . . . . . . . . . . . . . . 72
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Starting/stopping the engine . . . . . . . . . . . 72
Switching off/on . . . . . . . . . . . . . . . . . . . . . 73
S T ART ENGINE STOP button . . . . . . . . . . . . . 69
Starting (engine) . . . . . . . . . . . . . . . . . . . 69, 72
Steering Electromechanical steering ..... .... . 124, 0
Indicator light . . . . . . . . . . . . . . . . . . . 15, 124
Locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
also refer to Electromechanical steering . 124
Steering wheel Buttons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Easy seat entry . . . . . . . . . . . . . . . . . . . . . . . 69
Manual adjustment . . . . . . . . . . . . . . . . . . . 67
Power adjustment . . . . . . . . . . . . . . . . . . . . 68
Shift padd les (automatic transmission) . . . 79
Steer ing whee l heating . . . . . . . . . . . . . . . . 64
Steps for determining correct load limit . . . 226
Stopping (engine) . . . . . . . . . . . . . . . . . . . 70, 72
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Storage compartments . . . . . . . . . . . . . . . . . 53
Storage hooks . . . . . . . . . . . . . . . . . . . . . . . . . 57
S tronic (automatic transmission) . . . . . . . . . 76
Launch control program . . . . . . . . . . . . . . . 80
Sunroof . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Convenience opening . . . . . . . . . . . . . . . . . . 37
Emergency closing . . . . . . . . . . . . . . . . . . . . 38
Sunshade . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Symbols
refer to Indicator lights . . . . . . . . . . . . . . . . 10
T
Tachometer . ..... ................ 9, 10, 21
278
Tail lights
Cleaning
TOI clean diesel 236
refer to Ad
Blue . . . . . . . . . . . . . . . . . . . . . . 195
Technical data . . . . . . . . . . . . . . . . . . . . . . . . 260
Technical modifications . . . . . . . . . . . . . . . . 266
Temperature display Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Exterior tern perature . . . . . . . . . . . . . . . . . . 21
Temperature indicator
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Tether anchors . . . . . . . . . . . . . . . . . . . . . . . 189
Tether strap . . . . . . . . . . . . . . . . . . . . . . . . . 189
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . 56, 136
Time ......... ... .. .. ................ 24
tiptronic mode (automatic transmission) . . . 79
tiptronic (automatic transmission) . . . . . . . . 76
Tire Mobility System (tire repair set) . . . . . . 241
Tire pressure (tire pressure monitor ing sys-
tem) ......... ... ... ...... ...... 230,231
T ires ......... .. .. .. .. ............. .. 211
All wheel drive . . . . . . . . . . . . . . . . . . . . . . 124
Low aspect ratio tires . . . . . . . . . . . . . . . . 228
Repair set . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Service life . . . . . . . . . . . . . . . . . . . . . . . . . 219
Tire pressure . . . . . . . . . . . . . . . . . . . . . . . 221
Tire pressure monitoring sys-
tem ......... ... .. .. ....... 229,230,231
Tire pressure table . . . . . . . . . . . . . . . . . . . 222
Treadwear indicators . . . . . . . . . . . . . . . . . 219
Unidirectional .. .. .. .. ............. .. 213
Uniform tire quality grading . . . . . . . . . . . 229
Tires and wheels Glossary of tire and loading terminology . 213
Tires and vehicle load limits . . . . . . . . . . . 224
Tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Torn or frayed safety belts . . . . . . . . . . . . . . 142
Towing Tow trucks
Towing loop
TPMS 256
256,257
Ind icator light . . . . . . . . . . . . . . . . . . . . . . 234
TPMS (tire pressure monitoring system) ....... ... .. .. ........... 230,231