2012 AUDI A8 lane assist

2 Table of contents Vehicle literature .. .. .. .. .. ... .
5
About this Owner's Manual . . . 6
Controls and equipment .. ... .
Instruments and controls .. . .
General illustration ......... .. ... .
Instruments and warning/
indicator lights ........ .. .. .. . .
Instruments ............ ... .. ... .
Warning/indicator lights .......... .
Driver information display .. .. .. ... .
On-Board Diagnostic system (OBD) . . .
Opening and closing .. .. .... . .
Keys .. ...... ........... .. .. ... .
Power locking system ..... .. .. .. . .
Rear lid .. .. ........ ..... .. ..... .
Child safety lock . .......... ... .. . .
Power windows . .......... ... .. . .
Valet park ing . ........... .. .. ... .
Sliding/tilting sun roof ... .. .. .. .. . . 8
8
8
10
10
11
23
26
28
28
30
34
37
38
39
40
Panoramic sunroof. . . . . . . . . . . . . . . . 41
Clear vision .. ........ .. .. .. .. . .
Lights ... .. ............. .. .. .. . .
I nterior lights .............. .. ... .
V1s1on ..... ... .... ......... .... .
Wiper and washer system ... ... .. . .
Mirrors ................. .. .. ... .
Digital compass .......... .... ... .
Seats and storage ....... .. .. . .
General recommendat ions ..... .. . .
Front seats .............. .... ... .
Rear seats .. ... .. .. ..... ... .. .. . . 43
43
46
47
48
51
52
54
54
55
57
He ad restraints . . . . . . . . . . . . . . . . . . 61
Seat memory . ... ..... ... .. .. .. . .
Full-length center console .... .. ... . 62
64
L uggage compartment . . . . . . . . . . . . 66
Pa ss-thro ugh with ski sack . . . . . . . . . 67
Roof rack . . . . . . . . . . . . . . . . . . . . . . . 68
12-vo lt sockets . . . . . . . . . . . . . . . . . . . 70
Storage . . . . . . . . . . . . . . . . . . . . . . . . . 71
Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Warm and cold ... .......... .. .
Climate controls . .... .......... .. .
On the road ... ... .......... .. .
Steering .. .... .. ... .. ........ .. .
Starting and stopping the engine ... .
E lectromechanical parking brake ... .
Speed warning system ............ .
Cru ise control .... .... ...... ... .. .
Audi adaptive cruise control
and braking guard ......... .. .
Introduction . .. .. ..... ......... . .
General information ............. .
Audi adaptive cruise control ... .. .. .
Audi braking guard ............ .. .
Messages . .. .. . .............. .. .
Audi lane assist ............ .. .
Lane assist ...... ............. .. .
Audi side assist .............. .
Lane Change Assistant ........ .. .. . 75
75
79
79
80
82
84
85
8 7
87
87
89
93
94
96
96
99
99
Audi drive select . . . . . . . . . . . . . . 103
Driving settings . . . . . . . . . . . . . . . . . . 103
Raising/lowering the vehicl e . . . . . . . . 105
Driver messages . . . . . . . . . . . . . . . . . . 105
Night vision assistant . . . . . . . . . 106
Description . . . . . . . . . . . . . . . . . . . . . . 106
Pedestrian detection . . . . . . . . . . . . . . 106
Pedestrian warning . . . . . . . . . . . . . . . 106
General information . . . . . . . . . . . . . . 107
Switching on and
off . . . . . . . . . . . . . . 107
Settings in the MMI . . . . . . . . . . . . . . . 108
Driver messages . . . . . . . . . . . . . . . . . . 108
Automatic Transmission . . . . . . 10 9
t ip tron ic (8 -speed transmission) . . . . . 109

(!) Door handle
@
®
©
®
®
Audi side assist d isplay
Power locking sw itches
Audi side assist button
A ir vents with thumbwheel
Control leve r for :
- Turn signal an high beam
- Audi lane assist ..... ... .. .
0 Multifunction steering wheel
with:
- Horn
- Drive r's airbag
- Driver information system but-
tons . ............... .. .. .
- Audio/video, telephone, navi­
gation and vo ice recognition
buttons
- Sh ift padd les ........ .. .. .
@ Instrument cluster .. ... .. .. .
® W indshield washer system
l ever .................... . .
@ Starting the engine i f there is a
malfunction . .. ..... ... .. .. .
@ Buttons for:
- MM I display
- Electronic Stab ility Contro l
( E SC) .. ............. .... .
- Emergency flashe rs . ..... . .
@ Buttons for:
- Steering wheel adjustment
- Steering wheel heating*
@ Lever for:
- Cruise contro l system
99
33
99
45
96
146
23
1 12
10
48
8 1
189
44
79
78
85
- Adaptive cruise cont ro l* . . . . . 87
(§ Eng ine hood re lease . . . . . . . . . 219
@ Data Link Connector for On
Board Diag nostics (OBD II) . . . . 26
@ Light switch and inst rument il-
l umination . . . . . . . . . . . . . . . . . 43, 47
@ Buttons for :
- All-wea ther lights* 43
- Nigh t vision assista nt* . . . . . .
106
- Rea r fog lights . . . . . . . . . . . . 43
@ Power exterior mirror adjust -
ment . . . . . . . . . . . . . . . . . . . . .
51
In strument s and control s 9
@) Rear lid switch .... .. .. ..... .
@ Power w indows .. .......... .
@ Memo ry function buttons .... .
@ MMI display
@ I n d icator lights/buttons for
- P ASSENG ER AIR BAG OFF
- Par king system . .. ........ .
- Rear w indow power sun shade
@ G love compartment . ..... .. .
@
@
@
Front passenger's airbag .... .
Analog clock .. .. .. ........ .
Climate controls
@ MMI controls
@ Se lector lever (a utomat ic trans-
m1ss1on) . ........ .. .. ..... .
@ Center console w ith cupholder
@ El ectromechanical pa rking
br ake .. .. .. .. .... ........ .
@ I START ENGINE STOPI button
(D Tips
34
38
62
153
115
47
72
146
25
76
109
71
82
80
- Some of the equipment o r feat ures
shown in the genera l ill ustration may be
standard equ ipment on your vehicle or
may be opt ional equ ipment depending
on your model. Always ask your author­
ized Aud i dea ler if you have a quest io n
about your vehicle .
- Operat ion of the Multi Med ia Interface
(MMI) is described in a separate manua l.

Instrument s and warnin g/indic ator ligh ts 13
I
USA mod els: Safety systems
[j
Tank system
¢ page 18 ¢page 21
'
m
Canada models: Safety systems
•
Windshield washer fluid level
¢page 18 ¢page
21
I]
Electronic Stability Control (ESC)
!I
Windshield wipe rs
,I ¢ page 21
¢ page 18
- -
I!
Remote control key
Electronic Stability Control (ESC)
I
¢page BO
,I
¢page 18
~
Remote control key
USA models: ¢ page BO
rJ}E
Anti-lock brak ing system (ABS)
m
Battery in remote control key
defective ¢page29
¢ page 19
I Canada model s:
l:I
Defective light bu lb warn ing
•
Anti-lock braking system (ABS) ¢page 21
defective
Fog lights*
I ¢page 19
II ¢page 21
Worn brake pads
•
- -
¢page 19
•
Rear fog lights*
¢page 21
•
Electromechanical parking brake
¢page82
II
Headlight range control
¢page 21
•
Tire pressure mon itoring system
,I
mJ
adaptive light*
¢ page253 ¢page
21
1111&1
Tire pressure monitoring system
Light-/rain sensor faulty
m
¢page253
¢page 21
[m
Electronic power contro l - -
¢page20
•
Audi lane assist
¢page 96
g
Malfunction indicator Lamp (MIL)
,I
ti
Transmission
¢page20 ¢page
112
•
Engine speed limitation
Ii]
Transmission
¢ page 20
¢page 112
Ill
Engine oil level
Im
Electronic steering column lock
¢page 17
¢page 17
•
Engine oil sensor
Im
Engine start system
¢ page20
¢page 17
r.
Battery
,100
Dynamic steering *,/
¢ page 16
¢page22
--

14 Instruments and warning/indicator lights
Air suspension
¢page 18
Sport differential*
¢page22
Other indicator lights
- Turn
signals
¢page22
~ USA models: Cruise control *
~ ¢ page 85
•
Canada models: Cruise control*
¢page 85
-
r!I
Adaptive cruise control*
¢page89
•
Adaptive cruise control*
¢page 89
-
I
Adaptive cruise control*
¢page89
•
Audi lane assist
¢ page 96
-
•
High beam
¢page45
BRAKE /((f)) Brake system
The light illuminates when the ignition is
switched on . It goes out after the engine has
been started . This indicates that the brake
warn ing light is functioning properly.
If the brake warning light does not light up
when the engine is cranking, there may be a
malfunction in the electrical system. In this
case, contact your Audi dealer.
If the brake system warning/ind icator light
turns on, there is a brake system malfunction.
- (USA models)/ . (Canada models)
Stop vehicle and check brake fluid level
If the indicator light turns on and the mes ­
sage appears, proceed as follows:
"" Pull off the road . ""
Stop the vehicle.
"" Turn off the engine .
"" Check the brake fluid level ¢
page 229.
"" Contact your nearest authori zed repair fa-
cility if necessary.
Warning! Fault in brake system. Contact
dealer
If the ABS indicator light ti] (USA models)/ rl]
(Canada models), the ESC indicator light G]
and the brake system indicator light
- (USA models)/ . (Canada models) turn
on and the message appears, the ABS, ESC
and braking distr ibut ion are not working¢.&..
Carefu lly drive to your authorized Audi dealer
immediately to have the malfunction correct­
ed ¢.&. .
- (USA models) . (Canada models)
Parking brake: system fault! Please contact
dealer
- If the indicator light and the message ap­
pear
when stationary or after switching the
ignition on , check if you can release the
parking brake. After releasing the parking
brake, carefully drive to your authorized Au­
di dealer immediately to have the malfunc­
tion corrected. If you cannot release the
pa rking brake, seek professiona l assistance.
- If the ind icator light and the message ap­
pear
while driving, the emergency brak ing
function may not be available . It may not be
possible to set the park ing brake or release
it once it has been set. Seek profess ional as­
sistance.
(USA models): If the warn ing light - and
the warn ing l ight
El appear together, imme­
diately contact your authorized Audi dealer or
qualified wo rkshop to have all brake pads in­
spected
¢ page 19.
When the light comes on, an audible warning
s ignal is also given .
Ill-

Instrument s and warning /indicator lights 23
Driver information
display
Overview
Fig. 4 Driv er in formation system in t he in strum en t
cl uster
Fig . 5 D isplay: e xample of th e informa tion line
The driver information system contains infor­
mation
® that is displayed on tabs ®
c::> fig. 4. The follow ing content is possibl e de­
pending on vehicle equipment:
®
Tab
1
2
---
®
Content
Vehicle functions:
On-board computer <=;>page 24
Digital speedometer
Cruise control*
c::> page 85
Adaptive cru ise control and Audi
braking guard*
c::>page 87
Audi lane assist* c::> page 96
Display darkened
Indicator lights and messages
Warning when a door, the hood or
the rear lid is not closed
c::> page 26
Service interval display¢
page 25
Speed warning system ¢ page 85
--
® ®
Tab Content
3 Night vision assistant* c::> page 106
4 Audio/video
s Telephone*
6 Navigation*
The second and th ird tabs are only v isible if at
least one indicator light or message is shown
o r i f that system is switched on .
The status line © is located in the bottom
part of the d isplay
c::> fig . 4. It displays the ex­
terior temperature , time , selecto r lever posi­
tion, trip odometer and odometer.
I
For some vehicle functions, you can access the
trip information from the temporary memory
r::!;> page 24 i n the line (D c::> fig. 5.
& WARNING ,.______ -
- Never re ly exclusively on the outside
temperature display to determine if a
road surface is icy or not. Keep in mind
that road surfaces, especia lly bridges
and overpasses, could be ice covered and
slippery even at an outside temperature
above 41 °F ( +S
0
() .
-Always remember, even if the "snow­
flake" symbol (ice warning) does not ap­ pear in the display, black ice could be on
the road .
- Always reduce your speed and drive with
special care in cold weather conditions
when the chance of encountering icy road surfaces increases.
(i) Tips
-At temperatures below 14 °F (+ S 0
() a
snowf lake symbol appears ahead of the
temperature display .
It is intended to re­
mind the driver to pay special attention
to
ice on the road c::> &. If the vehicle is
stationary, or if you are driving at a very
low speed, the temperature shown in the
display might be slightly higher than the
actual outside temperature. This is

28 Opening and closing
Opening and closing
Keys
Key set
Fig. 13 Key set
@ Remote control key with mechanical
key
You can centrally lock and unlock your vehicle
and start the engine with the master key with remote control. A mechanical key is integrat­
ed in the remote control key
c:> page 29 .
@ Emergency key
The emergency key is not intended for con­
stant use.
It should only be used in an emer­
gency. Keep it in a safe place and do not carry it on your key ring.
Key replacement
If you lose a key, contact your authorized Audi
dealer immediately to have the
lost key disa­
bled. Be sure to bring all your keys with you.
Personal comfort settings
If two peop le use one vehicle, it is recom­
mended that each person always uses "their
own" master key . When the ignition is switch­
ed off or when the vehicle is locked, personal
convenience settings for the follow ing sys­
tems are stored and assigned to the remote
master key.
- Automatic climate control
- Central locking system
- Rear window sun blind
- Amb ient lighti ng
- Seat memory
- Parking system* - Adaptive cruise control*
-
Aud i lane assist*
- Aud i side assist*
-Audi drive select
- Night vision assistant*
- Heated steering wheel *
T he stored settings are automatically recalled
when you unlock the vehicle, when you open
the doors or when you switch the ignition on.
A WARNING
-- Do not leave your vehicle unattended. Al­
ways take your ignit ion key with you and
lock your vehicle. Entry by unauthorized
persons could endanger you or result in
theft or damage the vehicle.
- Do not leave ch ildren unattended in the
veh icle, especially with access to vehicle
keys. Unguarded access to the keys pro­
vides children the opportunity to start
the engine and/or activate vehicle sys­
tems such as the power windows, etc.
Unsupervised operation of any vehicle
system by children can result in serious
injury.
(D Tips
- The operation of the remote control key
can be temporarily disrupted by interfer­
ence from transm itters in the vic inity of
the vehicle working in the same frequen­
cy range (e .g. a cell phone, radio equip­
ment).
- For security reasons, replacement keys
are only available from Audi dealers.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions<=>
page 283.

Audi adapt ive crui se c ontrol an d bra kin g guard 8 7
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise control
The adaptive cruise control system assists the
driver by regu lating vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system . If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then ac­
celerate your vehicle . Th is he lps to make driv­
ing more comfortable both on long highway
stretches and in stop-and-go traffic.
The braking guard system can warn you about
an impending collision and initiate braking maneuvers ¢
page 93.
Adaptive cruise control and Audi braking
guard have technica l limitations that you
must know, so p lease read this section care­
fully, understand how the system works and use them properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 86 Front of the veh icle: sensors and video came ra
The areas that conta in the radar and ultrason ­
ic sensors and the v ideo camera ¢
fig. 86
must neve r be covered by stickers or other ob­
jects or obstructed w ith dirt, insects, snow or
ice that will interfere w ith the adaptive cruise
control system and Audi braking guard. For in­
formation on cleaning , refer to ¢
page 205.
The same applies for any modifications made
in the front area.
T he function of the Adaptive cruise cont ro l
system and A udi braking guard is limited un­
der some conditions.
- Objects can on ly be detected when they are
w ith in sensor range
¢page 89, fig. 89 .
-The system has a limited ability to detect
objects that are a shor t distance ahead,
off
to the side of your vehicle or moving into
your lane.
- Some kinds of ve hicles are hard to detect;
for examp le motorcycles, vehicles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at a ll.
- Stationary objects¢
page 88.
-When driving throug h curves ¢ page 88.
& WARNING
Always pay attent ion to traffic when adap ­
tive cruise contro l is switched on and brak­
ing g uard is active. As the driver, you are
still respons ible for start ing and for ma in­
taining speed and distance to other ob­
jects . Braking guard is used to assist you .
The driver must a lways take action to avo id
a collis ion. The driver is a lways responsible
for braking at the co rrect time.
- Improper use of adaptive cru ise control
can cause collisions, other acc idents and
serio us pe rsonal in jury.
- Never let the comfort and conven ience
that adaptive cruise control and Audi
braking guard offer dist ra ct you from the
need to be a lert to t raff ic condi tions and
the need to remain in full con trol of yo ur
vehicle at a ll times,
- Always remember that the adaptive
cruise contro l and Audi braking guard
have limits -they will not s low the vehi ­
cle down or maintain the set d istance
when you drive towards an obstacle or
something on or near the road that is not
mov ing, such as vehicles stopped in a
traffic jam, a stalled or disabled vehicle .
I f regis tered by the radar sensors,

Audi adaptive cruise control and braking guard 93
Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise control
Fig. 96 Instrument cluster: approach warning
Audi braking guard uses radar sensors and a
video camera. It also functions within the lim­
its of the system when adaptive cruise control
is switched off.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud­
denly or if your own vehicle is traveling at a
high speed and approaching a vehicle up
ahead that is moving more slowly . Audi brak­
ing guard does not react if it cannot detect
the situation.
The system advises you of various situations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If
the vehicle ahead brakes sharply, you will not be able to avoid a collis ion. The indicator
light
I i n the display comes on .
- The
approach warning is given when a de­
tected vehicle up ahead in your lane is mov ­
i ng much more slowly than you are or if it
brakes sharply . When this warning is given,
it may only be possible to avoid a collision
by swerving or braking sharply. The indicator
light
I and indicator in the display will warn
you about the danger
c::> fig . 96. You will a lso
hear an acoustic signal.
If you do not react fast enough or do not react
at all to the situation, Aud i braking guard will
11
This is not ava ilable in som e coun tri es.
intervene by braking and the message braking
guard intervention
will appear.
- If a coll is ion is imminent, the system wi ll
first provide an
acute warning by briefly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking guard can brake with increas ing
force within the limits of the system. This
reduces the vehicle speed in the event of a
collision.
- The system can initiate complete dece lera­
tion shortly before a collision
1>. Full deceler­
ation at high speeds occurs only in vehicles
with adaptive cruise control and side assist
(pre sense plus).
- If the Audi braking guard senses that you
are not braking hard enough when a colli­
sion is immi nent, it can increase the braking
force.
- The pre sense functions also engage when a
collision is imm inent
c::> page 185 .
Which function s can be controlled?
You can switch Audi braking guard and the
distance/approach warning on or off in the
MMI c::> page 94, Settings in the MMI.
A WARNING
Lack of attention can cause collisions, oth­
er accidents and serious personal injuries .
The Audi braking guard is an assist system
and cannot prevent a collision by itself.
The driver must always intervene. The driv­
er is always responsib le for braking at the
correct time.
- Always pay close attention to traffic,
even when the Audi braking guard is
switched on. Be ready to intervene and
be ready to take complete control when ­
ever necessary. Always keep the safe and
legal distance between your veh icle and
veh icles up ahead.
- Audi brak ing guard works within limits
and will not respond outside the system
lim its, for example when approaching a