2015 AUDI RS7 SPORTBACK Owners Manual

Audi adaptive cruise control and braking guard 87
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Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise control
Fig. 98 Instrument cluster: approach warning
Braking guard uses radar sensors and a video
camera . It also functions within the limits of
the system when adaptive 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 t raveling at a
high speed and approaching a vehicle up
ahead that is moving more slowly . Braking
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. in 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 possib le to avoid a collision
by swerving or braking sharply. The indicator
light. and indicator in the display will
warn you about the danger
c::> fig. 98. You
will also hear an acoustic signa l.
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This is not ava ilable in som e coun tri es. rl
If you do not react fast enough or do not react
at all to the situation, braking guard will inter­
vene by braking.
- If a col lision is imminent, the system will
first provide an
acute warning by brief ly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking g uard can brake with increasing
force within the limits of the system . This
reduces the vehicle speed in the event of a
co llision.
- The system can initiate maximum braking
shortly before a collision
1 ) . Full deceleration
at high speeds occurs only in vehicles with
adaptive cru ise control and side assist (pre
sense plus) .
- If the braking guard senses that you are not
braking hard enough when a collision is im­
minent, it can increase the brak ing force .
- The pre sense functions also engage when a
collision is imm inent
c::> page 184 .
Which function s can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the MMI
c::> page 88, 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 driver is
always responsible for braking at the cor­
rect time.
- Always pay close attent ion to traffic,
even when the braking guard is switched
on. Be ready to intervene and be ready to
take comp lete control whenever necessa­
ry . Always keep the safe and legal dis­
tance between your vehicle and vehicles up ahead .
- Braking guard works within limits and
will not respond outside the system lim­ its, for example when approaching a

88 Audi adaptive cruise control and braking guard
stopped vehicle or stationary obstacle (end of a traffic jam or vehicle that has
broken down in traffic).
- Always remember that the radar sensor
for the braking guard works only within
defined detection and range limits that
may prevent the proper detection of oth­
er vehicles.
- The radar 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 all.
- Reflective surfaces including crash barri­
ers or tunnel entrances may impair the
function of the radar sensor.
({) Tips
-You can cancel the braking with increas­
ing force that is initiated by the system
by braking yourself, by accelerating no­
ticeably or by swerving.
- Braking guard error messages
¢page 88.
- Keep in mind that braking guard can
brake unexpectedly . Always secure any
cargo or objects that you are transport­
ing to reduce the risk of damage or in­
jury.
Settings in the MMI
Applies to vehicles: with Audi adaptive cruise co ntrol
.. Select : I CARI function button > (Car)* sys­
tems
control button > Driver assist > Audi
braking guard.
System -
Switch braking guard On and Off.
When you switch the ignition on, the message
Audi braking guard off appears if the system
is switched off.
Early warning -The distance and approach
warnings 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
made.
- If you restrict or switch off the ESC, the
braking guard also switches itself off
¢page 189.
- Switch braking guard off when you are
loading the vehicle onto a vehicle carrier,
train, ship or other type of transporta­
tion. This can prevent undesired warn­
ings from the braking guard system.
Messages
Applies to vehicles: with Aud i adapt ive cru ise contro l
Braking guard: off
This driver message appears if the system is
turned off via the infotainment. Otherwise , if
the system is turned off, the information ap­
pears every time shortly after the start of the
trip.
The driver message also appears if the system
is not available due to a malfunction or if the
ESC is not switched on¢
page 189. If this is
the case, the system will not provide warnings about a possible collision.
Braking guard: activated
This driver message appears if sharp brake
pressure was applied due to an acute warning.
ACC: Unavailable!
ACC and Audi braking guard: not available
The system cannot detect moving vehicles up
ahead correctly and is switched off. The sen­
sors have been displaced or are not working
properly. The Audi pre sense functions may al­
so be affected . Drive to your authorized Audi
dealer or authorized Audi service facility im­
mediately to have the malfunction corrected.
ACC: currently unavailable. No sensor vision
ACC and braking guide: currently unavaila­
ble. No sensor vision
This message appears if the sensor view is ob­
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensors¢
page 81,
fig. 88. ll>-

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0:: <.J 'SI: ,...., \!) ..,.,
,...., ..,., ,....,
Audi adaptive cruise control and braking guard 89
ACC: Currently unavailable. Gradient too
steep
The road ex ceed s the maxim um poss ible an ­
g le for p roper ad ap tive cruise contro l opera ­
tion. Adaptive c ruise control is sw itche d off .
ACC : Only available in D, Sor M
Select the D/S or M se lector lever position .
ACC: currently unavailable. Parking brake
applied
The adap tive cruise co ntrol system switches
off a utomat ica lly if t he pa rking bra ke is set.
ACC : Currently unavailable . Stability control
(ESC) input .
This message appea rs if the Electron ic Stabili­
z at ion Cont ro l (E SC) is work ing to help stabi­
l iz e the vehicle . In this case, ad aptive cruise
con tro l sw itches o ff autom atically.
ACC off : Manual control!
This message appea rs when adapt ive cr uise
c o ntro l cannot set t he par king bra ke. Press
the brak e pedal to preve nt the vehicle from
r olling .
•••
Three wh ite dots a ppear if a setting cannot be
se lected with t he se lecto r lever. Fo r example,
this happens if adapt ive cr uise control cannot
resume driv ing in stop-and -go traff ic because
one o f th e conditi ons required for ACC to wor k
i s not present.
Door open
The adap tive cruise co ntrol system c annot
sw itch on whe n a door is ope n.
Stationary object ahead
This m essage appea rs if you would like to
sw itch ada ptive cru ise con trol on and ther e is
a stat iona ry ve hicle o r ob stacle directly a head
of yo ur vehicle.

90 Audi acti ve lane a ssi st
Audi active lane assist
Active lane assist
Description
App lies 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
d river can over ride the correct 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 wheel. 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 equ ipped with Audi adap­
tive cruise control*, the corrective steering
will be more specific in regard to the driving
situation . In addition to the lane marker lines,
the system can also take into account other
objects such as guard rails . If they are detect­
ed i n close prox imity to the veh icle, Audi ac­
tive lane ass ist helps prevent the vehicle from
driving too close to them . There 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 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. Always keep your
hands on the steering wheel.
- Corrective steer ing may not occur in cer­
tain situat 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 ional ly as
lane marker lines . As a res ult, correct ive
steer ing may be unexpected or may not
occ ur.
- The camera view can be restricted, for
examp le by vehicles driving ahead o r by
r ai n, snow, heavy spray or light shining
into the camera. T his can result in act ive
lane assist not detecting the lane marker
lines or detect ing them incorrectly .
- Unde r ce rtain condi tions such as ruts in
the road, a banked roadway or cross­
winds, the co rrective steering alone may
not be eno ugh 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 conditions such as
slippery roads, fog, grave l, heavy rain,
snow and the potential for hydroplaning.
Using act ive lane assist under these con­
d itions may increase the risk of a crash.

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Activating and deactivating
A pp lies to vehicles: with active lane assist
•
Fig. 99 Turn signal lever: Act ive lan e ass ist butto n
Fig. 100 Windshield: Active lane assist camera v iew ing
window
.. Press the ¢ fig. 99 button to activate or de­
activate the system. The ind icator light .
or. in the ins trument cluster will illum i­
nate or go out.
Instrument cluster indicator light
• Ready:
The indicator light shows that the
system is ready to use . The system can now
warn you if you are about to cross a known
lan e marker line.
• Not ready: The indicator light shows that
the system is turned on but unable to send a
warning. This can be due to the following:
- There is no lane marker line.
- The relevant lane marker lines are not de-
tected (for example, markings in a construc­
t ion zone or because they are obstructed by
snow, dirt, water or backlighting).
- The veh icle 's speed is below the speed need ­
ed to activate it , which is about 40 mph (65
km/h) .
- The lane is narrower than about 8
ft. (2 .5 m)
or wider than 15
ft (4 .5 m).
- The curve is too sharp .
Audi active lane assist 91
-The driver's hands are not on the steering
wheel.
a) Tips
Make sure the camera's field of view
¢ fig. 100 is not obstructed by stickers,
deposits or anything e lse. For information
on cleaning, refer to¢
page 201.
Active lane assist display in the
instrument cluster
App lies to vehicles: wit h act ive lane assist
Fig. 101 D isp lay: Activ e lane ass ist is sw it c h ed on a nd
i s wa rnin g
Fig. 102 Instrumen t cluste r: Act ive la ne a ssist is
switch ed on but not re ady to prov id e wa rnin gs
You can call up the active lane ass ist display
u sing the buttons in the mu ltifunction steer­
ing wheel ¢
page 22.
An additional indicator appears in the Head­
up Display*.
When active lane assist is sw itched on, the
system i ndi cates which lines are detected by
displaying solid lines on the left and/or right
s id e of your veh icle:
Ill>

92 Audi active lane assist
White Act ive l an e assist is switched on
line(s) and ready to p rov ide warnings
on the side tha t is ind ic a ted
¢ fig. 101.
Red line Act ive l ane assist is warning you
(left o r t hat you are about to leave your
r ight) lan e
¢fig . 101. In addition, the
s teer ing whee l v ibrates s lig htly.
G ray Act ive l ane assist is switched on
line(s) but is not ready to provide wa rn-
ings
Q fig . 102 .
Messages in the instrument cluster
display
When t he active lane ass ist tu rns off automat ­
i cally, t he i nstrument cluster i ndicator goes
out and one of the fo llow ing me ssages ap­
pea rs on the disp lay :
Audi active lane ass ist: Currently unavaila­
ble. No camera view
This message appears if the camera is no lon­
ge r functional after the system has cont inous­
ly failed to detect the lane markings . T his
could happe n if:
- The camera field of view
Q page 91 , fig . 100
is d irty or covered i n ice. Clean t he area on
t h e windsh ie ld .
- The camera field of view is fogged over. Wait
until the fog has cleared before switching
active lane assis t on .
- The system has been unable to detect the
lanes fo r an extended pe riod of time due to
road cond itions . Switch ac tive lane ass ist
back on w hen the lines are more visible.
Audi active lane ass ist: Currently unava ilable
A tempora ry malf unct ion is preventing lane
assist from operating. Try sw itch ing active
lane assist on again later.
Audi active lane a ssist: System fault!
Dr ive to yo ur aut horiz ed Aud i de aler soon to
h ave the m alfunc tion co rrec ted .
Audi active lane a ssist : Please take over
steering
T his message ap pears if yo u do no t steer the
vehicle yourself . If th is is the case, active lane
ass ist does not switch off, but it does sw itch
to the "not ready" stat us. T he system can help
you keep t he vehicle in the lane. However it is
yo ur own responsibility to stee r and control
the ve hicle .
Setting the steering wheel vibration
Applies to vehicles: with active lane assist
"' Sele ct: !CARI function button> (Car) * sys ­
tem s
con trol button > Driver assi st > Audi
active lane assi st.
You can swi tc h the vibrating warn ing in the
stee ring w heel
on or off .
(D Tips
Your s etting is a utom atically store d and
ass igned to the rem ote control key b eing
u sed.

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Audi side assist Lane Change Assistant
Description
App lies to vehicles: with side assist
Fig. 103 Sensor detection range
Fig. 104 Display on the exterior mirror
Side assist he lps you monitor your blind spot
and traffic behind your veh icle. With in the
limits of the system, it warns you about
vehicles that are coming closer or that are
traveling w ith you within sensor range
(D
c::, fig . 103: if a lane change is class ified as crit­
ical, the display@ in the exterior mirror
c::>fig.1 04turnson.
Th e display in the left exterior mirror provides
assistance when making a lane change to the
le ft, while the display in the right exterior mir­
r or provides assistance when making a lane
change to the right.
Information stage
As long as you do not activate the turn signal,
side assist
informs you about vehicles that are
detected and classified as crit ical. The display
in the respective mirror turns on, but is d im.
Audi side assist 93
The display remains dim intentionally in the
information stage so that your view toward
the front is not disturbed .
Warning stage
If you activate the turn signal, side assist
warns you about vehicles that are detected
and classified as critical. The display in the re ­
spective mirror blinks brightly . If this hap­
pens, check traff ic by glancing in the rearview
mirror and over your shoulder
c::> A in General
information on page 94.
@ Tips
- Yo u can adjust the brightness of the dis­
play @ c::>
page 95.
General information
Applies to vehicles: with side assist
®
®
©
Fig. 105 Driving situations
Fig . 106 Rear of the vehicle: position of the senso rs

94 Audi side assist
Side assist functions at speeds above approxi­
mately 19 mph (30 km/h).
(D Vehicles that are approaching
I n certain cases, a vehicle will be classified as
cr itica l for a lane change even if it is still
somewhat far away . The faster a vehicle ap­
proaches, the sooner the display in the exteri ­
or mirror will turn on.
@ Vehicles traveling with you
Vehicles traveling with you are indicated in the
exterior m irror if they are classified as critica l
for a lane change. All vehicles detected by
side assist are indicated by the time they en­
ter your "blind spot", at the latest.
@ Vehicles left behind
If you slowly pass a vehicle that side assist has
detected (the difference in speed between the
vehicle and your vehicle is less than 9 mph or
15 km/h), the disp lay in the exterior mirror
turns on as soon as the vehicle enters your blind spot.
The display will not turn on if you quickly pass
a vehicle that side assist has detected (the dif­
ference in speed between the vehicle and your
vehicle is greater than 9 mph or 15 km/h).
Functional limitations
The radar sensors are designed to detect the
left and right adjacent lanes when the road
lanes are the normal width. In certain situa­
tions, the display in the exterior mirror may
turn on even though there is no vehicle locat­
ed in the area that is critical for a lane change.
For example:
- if the lanes are narrow or if your are driving
on the edge of your lane. If this is the case,
the system may have detected the vehicle in
another lane that is
not adjacent to your
current lane.
- if you are driving through a curve. Side assist
may react to a veh icle that is one lane over
from the adjacent lane.
- if side assist reacts to other objects (such as
high or displaced guard ra ils). -
In poor weather conditions . The side assist
functions are limited.
Do not cover the rada r senso rs
~ fig. 106 with
stickers, deposits, bicycle wheels or other ob­
jects, because this will affect the funct ion . For
information on cleaning, refer to
~ page 201.
A WARNING
-
- Always pay attention to traffic and to the
area around your vehicle. Side assist can­
not replace a driver's attention. The driv­
er alone is always responsible for lane
changes and similar dr iving maneuvers .
- Improper reliance on the side assist sys­
tem can cause coll is ions and serious per­
sonal injury:
- Never rely on ly on side assist when
changing lanes.
- Always check rear view mirrors to make
sure that it is safe to change lanes.
- Side assist cannot detect all vehicles un­
der all conditions -danger of accident!
- Please note that side assist indicates
there are approaching vehicles, or
vehicles in your blind spot, only after
your vehicle has reached a driving speed
of at least 19 mph (30 km/h).
- In certain sit uations, the system may not
function or its function may be limited.
For example:
- if vehicles are approaching or being left
behind very quickly. The disp lay may
not turn on in time.
- in poor weather conditions such as
heavy rain, snow o r heavy mist.
- on very wide lanes, in tight curves or if
there is a rise in the road surface.
Vehicles in the adjacent lane may not
be detected because they are outside
of the sensor range .
([) Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
u nderbody. This can affect the system. .,..