2013 AUDI S7 cruise control

92 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
App lies to vehicles: with Audi adap tive cruise control
Fig. 96 Instrument cluster: approach warn ing
Braking guard uses radar sensors and a video
camera . It also functions within the limits of
the system when adapt ive cruise control is
switched off .
What can 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 . 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 collision . The indicator
light
I in the display comes on .
- The
approach warning is given when a de­
tected veh icle 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. Th e indicator
light
I and indicato r in the display will warn
you about the danger¢
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, braking guard will inter-
ll This is not ava ilable in some co un tri es .
vene by braking and the message braking
guard intervention
wi ll appear.
- If a coll is ion is imm inent, the system wi ll
fi rst prov ide 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 maximum braking
short ly before a co llision
1l . Full deceleration
at high speeds occurs only in vehicles with
adaptive cruise control and side assist (pre
sense plus) .
- If the braking guard senses that you are not
braking hard enough when a collision is im­
m inent, it can increase the braking force .
- The pre sense functions also engage when a
collision is imminent¢
page 194.
Which function s can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the MMI
i=> page 93, Settings in the MMI.
A WARNING
-
Lack of attention can cause collisions, oth-
er accidents and serious personal injuries.
The braking guard is an assist system and
cannot prevent a collision by itself . The
driver must always intervene. The dr iver is
a lways respons ible for braking at the cor­
rect time.
- Always pay close attention to traffic,
even when the braking guard is switched
on. Be ready to intervene and be ready to
take complete control whenever necessa­
ry. Always keep the safe and legal dis­
tance between your veh icle and vehicles
up ahead.
- Braking guard works within limits and
will not respond outside the system lim­
its, for example when approaching a
stopped vehicle or stationary obstacle ..,.

Audi adaptive cru ise control and brakin g guar d 93
(end of a traffic jam or veh icle t hat has
br oken down in traffic).
- Alw ays remember that the radar sensor
for the b raking guard works only within
defined detection and ra nge limits that
may prev ent the proper det ection of oth­
er ve hicles.
- The ra dar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not
be promptly detected or may not be de­
tected at al l.
- Reflective surfaces includ ing crash barr i­
ers or tunnel ent rances may impair the
function of the radar sensor.
(0 Tips
- You can cance l the braking w ith increas­
i ng fo rce that is initiated by the system
by braking yo urself, by accelerating no­
ticeab ly or by swerving.
- Brak ing guard error messages
<=> page 93.
-Keep in mind that braking guard can
brake unexpectedly. Always secure any
ca rgo or objec ts that you are transport ­
i ng to reduce t he risk of d amage o r in­
Ju ry.
Settings in the MMI
Appl ies to vehicles: with Audi adaptive cruise co ntrol
~ Se lect: ICARlf unct ion button> ( Car )* sys­
tems
contro l button > D river assi st > Audi
braking guard .
System -
Switch braking g ua rd On and Off .
When you sw itch the ignition on, the message
Audi braking guard off appears if the system
is switched off.
Early warning -The distance and approac h
warn ings in the display can be switched
On /
Off .
(D Tips
- Your settings are automatically stored
and assigned to the remote control key being used at the time the settings
are
ma de.
- If you switch the ES C to spo rt mode,
braking g uard switches off a utomatica lly
<=>page 198.
- Switch braking guard off when you a re
loading the vehicle onto a vehicle carrier,
t rain, ship o r other type of transporta­
t ion. This can prevent undesired warn­
ings from the braking guard system.
Messages
App lies to vehicles : wit h Audi ada ptive c ruise contro l
ACC unavail able
ACC and braking guard: unavailable
T he system cannot detect mov ing vehicles up
ahead co rrec tly and is switched off. The sen­
sors have been displaced or a re not worki ng
properly . The Audi pre sense func tions may a l­
so be affected. Drive to yo ur autho rized Audi
dealer or authorized A udi se rvice facility im­
med iate ly to have the malfunction corrected.
ACC: unavailable at this time. No sensor vi­
sion
ACC and braking guide: unavailable at this
time . No sensor vision
Th is message appears if the senso r view is ob­
structed, for examp le by leaves, snow, heavy
sp ray or d irt. C lean the sensors<=>
fig. 86 .
ACC: unava ilabl e at this time . Inclin e too
steep
The road exceeds the max imum possible an­
gle for proper adaptive cru ise control opera­
tion. Adaptive cru ise con tro l is switched off .
ACC: only selector lever positions D , S or M
available
Se lect t he D/S or M selector leve r pos ition.
ACC: unavailabl e at this time . Parking brake
s et
The adaptive cr uise cont rol system switches
off automatically if the park ing b rake is set. ..,.

94 Audi adaptive cruise control and bra king guard
ACC : Currently unavailable . Stabilizat ion
cont rol (ESC ) input .
This me ssage appears if the Ele ct ron ic St abili­
z at ion Con trol (E SC) is wo rking to help st abi­
li ze the vehicle. In this case, adaptive cruise
contro l sw itches
off automatically.
ACC : Please take over
This message appea rs whe n adapt ive cr uise
con trol can not set t he parki ng b ra ke . Press
the b ra ke peda l to preve nt the vehicle from
r olling .
•••
Three w hite dots appear if a setting cannot be
se lected with the se lector lever. Fo r example,
this happens if adapt ive cr uise control can not
r es ume dr iv ing in stop-and-go traff ic because
one of t he conditions required fo r ACC to wor k
i s not p resent.
Door open
The adaptive c ruise co ntro l system ca nnot
switch on when a d oor is open.
Stationary object ahead
This message appea rs if you wou ld li ke to
sw it ch a dapti ve cr uise con trol o n and there is
a sta ti onar y veh icle o r obstacl e direc tly ahe ad
of yo ur vehicle .

Audi active Lane assist
Active Lane assist
Description
Applies to vehicles: with active lane assist
Active lane assist helps you keep your vehicle
in your lane.
Active lane assist detects lane marker lines
within the limits of the system using a camera in the windshield . If you are approaching a de­
tected lane marker line and it appears likely
that you w ill leave the lane, the system will
warn you by means of corrective steer ing . T he
driver can over ride the cor re ct ive steer ing at
any time. If the veh icle crosses a line, the d riv­
er is also warned by a light
vibration in the
steering whee l. The vibration warning must
be switched on in the MMI for this to happen.
Active lane ass ist is operable when the line
marking the lane is detected on at least one
side of the vehicle .
If the system is in active standby mode and
the turn signa l is activated before driving over
the lane marker line, the warning does not oc­
cur since the system allows for intentional lane changes .
The system is designed for driv ing on free­
ways and expanded highways and thus works
only at speeds of 40 mph (65 km/h) or more .
If the vehicle is also equipped with Audi adap­
tive cruise control*, the corrective steering
will be more specif ic in regard to the driving
situation . In addition to the lane marker lines,
the system can a lso take into acco unt other
objects such as guard rails. If they are detect­
ed i n close proximity to the veh icle, Audi a c­
tive lane ass ist helps prevent the vehi cle from
driving too close to them . The re is also pass­
ing assistance. The system does not provide
any corrective steering if it detects that you
are passing another vehicle.
A WARNING
- The system warns the driver that the ve­
hicle is leaving the lane us ing corrective
Audi acti ve lane a ssis t 95
steer ing. The driver is always responsible
for keeping the vehicle within the lane.
- The system can assist the driver in keep­
ing the vehicle in the lane, but it does
not steer by itself. A lways keep your
hands on the steering wheel.
- Corrective steering may not occur in cer­ tain sit uat ions, such as dur ing heavy
brak ing.
- The camera does not recognize all lane
marker lines. Corrective steer ing can only
take p lace on the side of the vehicle
where lane marker lines are detected .
- Other road structures or objects cou ld
possibly be identified un intent ionally as
lane ma rker lines. As a result, cor rect ive
steer ing may be unexpected or may not
oc cur .
- The camera view can be restricted, for
examp le by vehicles driving ahead o r by
r ai n, snow, heavy spray or light s hining
into the camera. This can result in a ctive
lane assist not detecting the lane marke r
lines or detect ing them inco rrectly .
- Unde r ce rtain condi tions such as ruts in
the road, a banked roadway or cross­
winds, the corrective stee ring alone may
not be enough to keep the vehicle in the
lane.
- For safety reasons, active lane ass ist
must not be used when there are poor
road and/or weather condit ions such as
slippery roads, fog, gravel, heavy rai n,
snow and the potent ial for hydroplaning .
Using act ive lane assist under thes e con­
ditions may increase the risk of a crash.

102 Audi drive select
Audi drive select
Driving settings
Introduction
Aud i d rive select mak es it possible to expe ri­
ence diffe ren t types of vehi cle se ttin gs i n o ne
ve hicl e. The dr ive r can se lect th ree
Comfort ,
Auto and Dynamic modes in the M MI to
switch between a sporty and a comforta ble
driving mo de.
You c an a lso a djust the setti ng according to
your p re ferences in the
Individual mode . F o r
examp le, you ca n combine settings such as a
sporty en gine t uning with comfortab le steer­
ing.
A WARNING
Improper use of the A udi drive select can
cause collisions, ot her acc idents and se ri­
ous pe rsonal injury.
Description
The vehicle setup in each mode depends on
the veh icl e's featu res. The engine, t ransm is­
sion, stee ring, reve rsible sa fe ty belt tension­
e rs a nd adap tive air su spension are alw ays in­
volved.
Engine and transmission
Depending on the mode, the e ng ine and the
tra nsmission respond quic ker or i n a more bal­
an ced manne r to acce le rator pedal move­
men ts. In the sporty dyn ami c mode, the
tra nsmission sh ifts at highe r RP Ms.
Air suspension*
The adaptive air suspens ion/adaptive air sus­
pension spor t*
(Air suspen sion in the MM I) is
a n e lec tronic ally con trolled air suspension and
da mpi ng sys tem. They are adjus ted depend­
ing on the se lected driving mode, the drive r's
steeri ng, braking an d acceleration input and
the road s urface, ve hicle speed and load. A
sporty setting is generally used in ve hicles
with adaptive air suspension sport*. T
he veh icle clearance varies depending on the
se lected mo de an d the speed .
T he highway setti ng is a ct ivated automatic ally
whe n you dr ive above 7 5 mph (120 km/ h) fo r
more than
3 0 seconds in the Auto or Dynamic
mode. The gro und clea rance is increased a uto ­
matically if the speed drops below
44 mph
(70 km/h) for more than 120 seconds.
Steering
T he s teer ing adap ts in terms of s teer ing effor t
and steering ratios . Indirect stee ring that
moves easily, like the steer ing in comfo rt
mode, is best suited to long drives on a high­
way. In contrast, dynamic mode provides sporty, direct steer ing .
Sport differential*
As a component of the all whee l drive system
(quattro ®)
r=:> page 201, th e Sport differen­
t ia l* distributes the driving powe r to the rear
axle depending on the situation. The distr ibu­
t ion of power va ries depe nding on the select­
ed mode, from balanced (comfort) to agile
(dyna mic) . Th e goa l is a high leve l of agility
and ability to acce le rate on cu rves . Th e vehicle
is ve ry re sponsive to st eer ing.
Curve light*
The curve light adapts to driving on curves .
T he pivo ting act io n and the lighting are also
adapt ed to the mode .
Adaptive cruise control*
The behav ior when accelerating can be adjust­
ed from comfortab le to sporty, depending on
the drive select mode. Adaptive cru ise cont ro l
also responds to th e dr iv ing behavior o f th e
vehicle a head in a mo re co nse rvative o r sporty
man ne r.
Engine sound*
The sound of the eng ine is adapted to the se­
lected mode and ranges from sub tle to sporty . .,.

104 Audi drive select
The equipment in your veh icle w ill determine
which settings you ca n adj ust. The fo llowing
Engine /Trans mission
Air su spension *
Steering
Sport differential *
Curve light*
Belt tensioner *
Adapti ve cruise control *
Engine sound* Comfort balanced
comfortable
comfortable
balanced
comfortable
Standard
comfortable
table p
rov ides a n overview of the characteris ­
tics of eac h driving mode .
Auto Dynamic
balanced sporty
balanced sporty
ba lanced spo
rty
agile sporty
ba lanced spo
rty
---.. ,
Standard
ba lanced
subtle/sportya> Deployment time
adapted
sporty
-...
sporty
-
a l Subt le i n th e drivi ng pos it io n D an d sp o rty in t he d riving pos itio n S.
{DJ Tips
Your Individual mode se ttings are a uto­
mat ica lly stored and assigned to t he re­
mote co ntro l key being use d.
Raising/lowering the
vehicle
Raising the vehicle
You can ra ise your veh icle temporarily, for ex­
ample to dr ive over a tall curb .
., Se lect the following i n the
MM I: ICAR I f u nc ­
tion button >
Raise cont ro l button .
., Wait for the a rrows in the display to stop
blinking and the vehicle to reach its fina l po­
s it ion.
Lowering the vehicle
., To lowe r the veh icle, select the fo llow ing in
the
M MI: ICARlfunction button> Lowe r con­
tro l button .
., Wait for the a rrows in the display to stop
blinking and the vehicle to lower complete­
l y .
{(D Note
- Remember that your veh icle is not suita­
ble for driving offroad even when it is
r aised . There is not enough ground clear ­
ance.
- If the vehicle is ra ised, it will lower auto­
m atic ally when d riving 6 2 mph (1 00 km/
h) or faster .
Driver messages
Air suspen sio n: vehicl e currently too low .
Level control running
Air su spension : vehicle curr ently too high .
L e vel control running
The driver message switc hes off when the lev ­
el cont rol process is complete .

112 Automatic Tran sm iss ion
_& WARNING
-The veh icle can also roll when the engine
is stopped .
- Unintended vehicle movement can cause
serious injury.
- Never leave your vehicle with the eng ine
running wh ile in gear. If you must leave
yo ur vehicle when the engine is running,
act ivate the parking brake and move the
selector lever to P.
- Power is sti ll transmitted to the whee ls
when the engine is running at idle. To
prevent the vehicle from "creeping", you
must keep your foot on the brake when
the engine is runn ing and the selector
lever is in D/S or R or "tiptron ic" mode is
selected.
- Do not press the accelerator pedal when
chang ing the selector lever pos ition
wh ile the vehicle is stat ionary and the
eng ine is running.
- Never shift into
R or P wh ile driving.
- Before driv ing down a steep slope, re-
duce your speed and shift into a lower
gear with "tiptronic".
- Do not ride the brakes or press the brake
peda l too often or too long when dr iving
down a hill. Constant braking causes the
brakes to ove rheat and s ubstant ially re­
duces braking per formance, increases
braking distance or causes comp lete fail ­
ure of the brake system.
- To prevent the veh icle from rolling back
when stopping on inclines, a lways hold it
in place with the bra ke peda l or parking
brake.
- Never hold the ve hicle on an inc line with
a slipping clutch . The clutch opens auto­
matically when it becomes too hot from
the overload. An indicator lamp
[O] illu­
mi nates and a dr iver message appears
¢ page 114 when the clutch is overload­
ed.
- If the eng ine must remain running, never
have any driv ing pos ition engaged when
c heck ing under the hood. Make sure the
selector lever has securely engaged and is locked in P w
it h the park ing brake set
¢ page 224, Engine compartment. Oth­
erwise, any increase in engine speed may
set the veh icle in motion, even with the
parking brake applied.
(D Note
- When stopping on an incl ine, do not try
to hold t he vehicle in place by pressing
the acce lerator pedal while a driving gear
is se lected. This ca n cause the transmis­
sion to ove rheat and can damage it . Acti­
vate the pa rking brake or press the bra ke
peda l to preven t the vehicle from roll ing.
- Allowing th e vehicle to ro ll when the en­
gine is stopped and the selecto r lever is
in N will d amage the tr ansmission be­
cause it is not l ubricated unde r those cir ­
cumstances .
(D Tips
Fo r saf ety reaso ns, the pa rking br ake is re­
l eased automatically on ly when the d riv­
er's safety belt is engaged in the buckle.
Hill descent control
Appl ies to vehicles: wit h S t ronic/tiptro nic
The hill descent control system assists the
driver when driving down declines.
Hill des cent con trol is activated when these­
lector lever is in D/S and yo u press the brake
peda l. The transmission automatica lly selects
a gear that is suitable for the incline . Hi ll de ­
scent contro l tries to maintain the speed ach ­
ieved at the time of braking, within phys ica l
and technical lim itations. If may st ill be nec­
essary to adjust the speed with the brakes .
Hill descent cont ro l switches off once the de­
cline leve ls out or you press the acce lerator
pedal.
On vehicles with the cruise contro l system*
¢ page 83, hill descent control is also activat-
ed when the speed is set. .,..

194 Audi pre sense
Audi pre sense
Preventative passenger
protection
A pp lies to veh icles: with Audi pre se nse
Audi pre sense can initiate steps to help pro­
tect vehicle occupants in certain situations.
The functions described depend on equ ipment
installed in your vehicle:
Audi pre sense basic*
The following functions can be triggered in
certain driving situations:
- Tightening of the safety belts (for example,
during heavy braking) : the front safety belts
have reversible belt pretensioners. If a colli­
sion does not occur, the safety belts loosen
slightly and are ready to be tightened again.
- Closing the windows and the sunroof*: the
windows and the sunroof* close leaving a
small open gap.
Audi pre sense basic functions can be trig­
gered at speeds above 20 mph (30 km/h).
Vehicles with Aud i drive select*: the deploy­
ment time is adapted in
Dynamic mode.
Audi pre sense front (vehicles with
adaptive cruise control*)
Audi pre sense front includes the functions in
Audi pre sense basic. In addition, within the
limits of the system, the likelihood of a colli ­
sion with the vehicle immediately ahead is al­
so calculated . If the system senses an immi­
nent collision the following functions can be
tr iggered :
- Braking guard
c::> page 92
- Tightening the safety be lts
- Closing the windows and the sunroof* (leav -
ing a small open gap)
Audi pre sense rear (vehicles with Audi
side assist*)
Audi pre sense rear includes the functions in
Audi pre sense basic. In addition, the likeli­
hood of a rear-end collision with the vehicle
coming from behind is also calcu lated.
If the risk
of a co llision is detected, the following
functions can be triggered:
- Tig htening the safety belts
- Closing the windows and the sunroof* (leav-
ing a small open gap)
Audi pre sense plus*
Audi pre sense plus includes the functions in
Audi pre sense front and Audi pre sense rear.
Error message
Audi pre sense: not available
Preventative passenger protection is not avail­
able. See your authorized Audi dealer immedi­
ately to have the malfunction corrected.
_& WARNING
-=
Audi pre sense cannot overcome the laws
of physics. It cannot prevent a collision. Do
not let the increased safety provided
tempt you to take risks. This will increase
the r isk of a collis ion and serious personal
in juries .
- The sensors cannot always detect all ob­
jects. This increases the risk of a colli­
s10n.
-Aud i pre sense does not detect people or
an im als or objects that are crossing the
veh icle's path
c::> page 86.
-The radar sensor's vis ion can be reduced
by heavy rain, ice, snow, heavy road sp ray
and reflections from guard rails, tunnel
entrances, etc. These and similar condi­
tions can prevent vehicles from being ac ­
curately detected and in some cases they
may not be detected at all.
(D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. This can affect the function of
the Audi pre sense system. Have your au­
thorized Audi dealer check to make sure
that the system is working properly.