Page 129 of 340

Audi braking guard
Description
Applies to vehicles: with a daptive cruise co ntrol
Audi braking guard warns you of a possible
collision with a moving vehicle up ahead .
Fig. 146 Display in the instrument cluster
The Audi braking guard is active from a speed
of approx. 20 mph (30 km/h) and works with
in the system limits¢
page 125 even when
the adaptive cruise contro l is deactivated.
A radar sensor is bu ilt into the front of the ve
hicle
¢page 114, fig. 127. The system is in
tended to measure the distance to reflective
surfaces .
If a measurement is not possible,
the system does not respond.
When the measurement has been taken, the
system can recognize a possibly hazardous sit
uation, for example, whe n a vehicle up ahead
in your lane of trave l sudden ly brakes or when
your own vehicle is moving at high speed to
wards a much slower vehicle up ahead . As
soon as the system senses that a possible col
lision with the vehicle up ahead can only be
avoided by immed iate full brake application or
by an avoidance maneuver, a warning appears.
The system has a defau lt response time to be
able to signal before a collision occurs. This
system response time is automat ica lly re
duced if you acce lerate actively, fo r example
to join a highway. Braking, transverse acceler
ation and the steering angle can lead to a re
duced system response time. The warning is
deactivated if you begin to overtake with full
acceleration .
Adaptive cruise control 127
The system can make you aware o f two differ
ent hazardous situations:
Distance
The distance warning is given if the system
calculates that there is not enough distance
to the vehicle up ahead a period of more than
S seconds . If the distance is less than 30 feet
(9 meters) at SO mph (80 km/h), for examp le,
an optical display comes on in the instrument
cluster¢
fig. 146.
If the vehicle ahead brakes sharp ly, Audi brak
ing guard cannot help you to avoid a collision,
even in the case of an immediate response.
Take immed iate action to avoid the co llision
and increase the distance to the vehicle up
ahead.
Speed
If there is a much slower vehicle moving up
ahead in your lane, or if the vehicle ahead
brakes sharply, the Aud i brak ing guard calcu
lates the po int from which a collision can only
be avoided by full braking or by an avoidance
maneuver. If a warning does sound, a poss ible
collision with the ve hicle in front can on ly be
avo ided through an evasive maneuver or by
braking.
The warning is given in two stages :
-Pre-warning: A visual display appears in the
instrument cluster and a warning tone
sounds.
- Acute warning: If you do not respond to the
pre-warn ing, the second stage warning is
given. A quick brake application helps to di
rect your attention to the road and traffic
situation.
Under heavy braking, the brake ass istant
¢
page 114 also helps you benef it from maxi
mum brak ing efficiency.
A WARNING
Inatt ention can cause collisions, other ac
cidents and serious personal injuries.
Page 130 of 340

128 Adapti ve crui se co ntrol
-Always pay close attenti on to t he traffic,
even w hen the Aud i brak ing guard is
switched on. The Aud i b rak ing guard pro
vides a warning but does no t brake the
car for you . You m ust apply t he brakes
yours elf!
- Always ke ep the sa fe and legal distance
betwe en your vehicle and veh icles up
ahead.
-Audi braking guard works within limits and w ill not respond outs ide the system
limits, for examp le when approaching a
stopped vehicle or s tationary obstacle
(end of a traff ic jam or veh icle that has
broken down in traffic).
- Always remember th at the radar sensor
f or the A udi braking guard wo rks within
defined detection and range limits that
may prevent the proper detection of oth
er veh icles.
- 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 al l.
- Always pay careful attention to the traf
fic s ituation and be ready to intervene
and be ready to take comp lete control
whenever necessary.
- Reflective surfaces includ ing crash barri
ers or tunnel entrances may impair the
function of th e radar sensor .
Settings in the MMI
Applies to vehicles: with a daptive cruise co ntrol
The settings of the Audi braking guard are
performed in the MMI.
.. Se lect : I CAR I funct ion button > Systems *
control button > Audi braking guard . Or
" Se lect :
I CAR I funct io n button > Car systems *
control button > Driver assist > Audi brak
ing guard .
- System -
the Audi braking guard system can
be switched
On and Off .
-Early warning -the acoustic warning and
the messages can be switched
On and Off .
(D Tips
When handing ove r the keys to another
person, the p revious settings are adopted
i f the Audi braking g uard is activated
¢ page 43.
Driver's information in the instrument
cluster display
App lies to vehicles : wit h adaptive cruise contro l
Braking guard activated
Th is message appears when the Aud i b ra ki ng
guard applies the brakes du ring a second
st age (a cute) war ning .
Braking guard off
This message appears when the system has
been deac tivated via the MMI. This message
also appea rs br iefly at each beginn ing of a t rip
i f t he sys tem is swi tched off .
The message a lso appears if the system is not
ava ilable due to a malfunc tion or if the ESC is
not sw itched on¢
page 225 . If th is is the
case, the system will not provide wa rni ngs
abo ut a po ssible coll ision.
Page 131 of 340

Audi side assist Lane Change Assistant
Description
App lies to vehicles: with side assist
The side assist helps you when changing
lanes .
AUDl Q7
Fig. 147 Rear b umper: Pos it ion of radar sensors (not
v isib le on outside)
Fig . 148 Signal light on the outside mirror -driver 's
s ide
~ -..:, .. (D
Side assist uses radar sensors (not visib le on
outside) ¢
fig. 147 to help the driver check
b lind spots, and see what is happen ing in traf
fic beh ind the veh icle
¢ page 130, fig. 150.
Signal lights are bu ilt into both outside m ir
r ors ¢
fig. 148. The signal light on the left
outside mirror assists when moving over into
the left lane and the signal light on the r igh t
ou tside mirror assists when moving over in to
the right lane .
The s ignal light comes on to tell you that side
assis t has detec ted a vehicle on tha t side and
that t he position of this othe r vehicle should
be taken into account if yo u were to change
lanes . This is called the
informatio nal st age
sign al¢
page 131. The informat ional stage
Aud i side assist 129
signal is designed so that you notice it on ly
when you are looking in the outside mirror.
When yo u activate the turn signal and side as
s ist de tects a vehicle in a no table location, the
corresponding signal on the outside mi rror
flashes briefly and brightly several times. This
is the
a lert stage signal ¢ page 131 .
Activating and deactivating
Applies to vehicles: wit h side assist
Fi g. 14 9 Drive r's doo r: Side assist button
Activating
.,. Press the ¢ fig. 149 button. The indicator on
t he button lights up .
Deactivating
.,. Press the button again. The indicator light
on the button goes out .
The system works at speeds faster than
19 mph (30 km/h) .
A WARNING
-Imp roper reliance on the side assist sys
tem can cause coll is ions and serio us pe r
sonal injury:
- Never rely on ly on side assist when
changing lanes.
- Always check rear view mirrors to make
su re that it is safe to change lanes.
- Side assist canno t detect all veh icles un
de r all conditions- danger of accident!
- Side assist cannot detect vehicles in time
to a lert you w hen they app roac h from
behind at very hig h speed, or fall drop
back very qu ickly.
~
Page 132 of 340

130 Audi side assist
-The radar sensor's vision can be reduced
or entirely blocked by rain, snow, and
heavy spray . This can result in side assist
not adequately detecting vehicles or, in
some cases, not detecting them at all.
Always keep an eye on the direction you
are traveling and the relevant area
around the vehicle.
- 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).
- Side assist signal does not work around
tight corners (turning radius less than
328 feet, or 100 m).
- Side assist is no replacement for the driv
er's full attention. The driver alone is re
sponsible for lane changes and similar
driving maneuvers. Always keep an eye
on the direction you are traveling and the relevant area around the vehicle.
- To ensure that you do not adversely af
fect side assist, do not block the area on
the rear bumper where the radar sensors
are located with foreign objects (such as
stickers or bicycle racks).
- Make sure that the signal light on the
outside mirror is not blocked by stickers
or other items.
(Di Tips
- Side assist automatically deactivates if it
detects that the radar sensors are
blocked ¢
page 135. The indicator light
on the button goes out .
- The area on the bumper where the radar
sensors are located must consistently re
main free of snow, ice, and heavy soiling
so that side assist can function properly.
Follow the additional notes on
¢page 136.
-For vehicles with a factory installed tow
ing hitch* or a trailer hitch* that was in
stalled later according to factory specifi
cations, side assist is automatically deac- tivated
as soon as the electrical connec
tion to the trailer electrical socket is made
¢ page 135.
-For vehicles with a trailer hitch that was
not installed according to factory specifi
cations, switch off the side assist when
towing a trailer .
- Additional tinting on the front side win
dows can make it harder to see and cor
rectly understand the signal light on the
outside mirror.
- For Declaration of Compliance to United
States FCC and Industry Canada regula
tions¢
page 319.
Sensor detection area
Applies to vehicles: with side assist
-----··· .... ·--·--
@ / ,
--
ill b''T -
Fig. 150 Sc hematic illustration: Sensor detectio n area
The detection ¢ fig. 150 of the radar sensor
detection area is made up of:
-
- the approach area (light red area) (D, about
230 feet (70 m) behind the vehicle, and
- the "blind spot" (dark red area) @.
The radar sensors cover the adjacent left and
right lanes. Other lanes are
not covered by the
radar sensors.
(D Tips
Side assist does not measure actual lane
width. The system assumes a fixed lane
width . Detection in the left and right lanes
is based on this assumed lane width.
When driving on narrow roads or when
driving to the left or right of the center of
a travel lane, it is possible that vehicles
will be detected that are
not in the lane
Page 133 of 340

next to the lane you are using
¢page 135.
Operation
Applies to vehicles: with side assist
Side assist compares the distance and differ
ence in speed of detected vehicles with the
speed of your vehicle . Whenever the differ
ence in speed and d istance is registered as no
table if you were to change lanes, a signal l ight appea rs on the respective mirror.
The signal can light up if you are passed by a
vehicle or if you are pass ing another vehicle.
If you pass another vehicle s lowly (difference
in speed less than 9 mph, or 15 km/h), the
signal light will come on as soon as the other
vehicle is in your blind spot and is detected by
side assist . When the difference in speed is
g reater, the signal light will not come on.
Informational and alert stage signals
Applies to vehicles: with side assist
Side assist has two signal stages:
- the informational stage signal, and
- the alert stage signal.
Side assist he lps you by using the appropriate
signal stage, depending on whether or not
you have activated the turn signal, and thus have indicated that you are or are not chang
in g lanes .
Informational stage signal
As long as you have not activated the turn sig
nal, side assist informs you of detected
vehicles that are registered as being in a nota
b le location if you were to change lanes.
Whenever the detected vehicle's difference in speed and distance is registered by side assist
as notable, the signal light on the respective
mirror produces muted illuminat ion.
The br ightness of the informat ional stage sig
nal is designed not to be as intense, so that it
does not interfere with your view of the road
when yo u are driving and have no intention of
changing lanes. When you look i n the outside
Aud i side assist 131
mirror, you can clearly see the informational
stage signal.
Alert stage signal
When you activate the turn signal, and s ide
ass ist has detected a vehicle in a notable loca
t ion on that part icular s ide, the signa l light on
this side mirror flashes brightly. The repeated
brief and bright flashing of the alert stage
signal reminds you to carefully check traffic to
the rear in the outside mirror and over your
shoulder, so that you can safely complete the lane change
¢ A in Safety tips on page 136 .
@ Tips
The brightness of the signal light on the
outside mirrors can be adjusted with the
MMI ¢page 134.
Driving situation: Fast approaching
vehicles
Applies to vehicles: with side assist
Fig. 151 Side assist : Fast app roaching vehicles
@ Signal on outside mirror does not light
up
No vehicle was detected by the sensors. The
signal on the outside mirror does not light up
¢ A in Safety tips on page 136. IJJ,,
Page 134 of 340

132 Audi side assist
@ Informational stage signal lights up
A fast approaching veh icle - in the left-hand
l ane for examp le - was detected by the sen
sors . Although this vehicle is sti ll far away, it
should be taken into account if you were to
change lanes, due to the considerable differ
ence in speed. The informational stage signal
on the outside m irror lights up
c::;, page 131.
@ Alert stage signal flashes
If you activate your turn signal in driving sit
uation @, the signal briefly f lashes repeated
ly. Side ass ist is alerting you to a veh icle that
you may not have noticed.
@ Tips
- The faster a vehicle approaches from the
rear, the sooner the signal on the outside
mirror lights up. Side assist will signa l,
at the latest, when a detected vehicle en
ters your "blind spot" .
- When vehicles approach very quickly,
changing lanes can be dangerous even if
the signal on the outside mirror does not
light up.
Driving situation: Slowly approaching
vehicles
Applies to vehicles : wi th side assist
@
Fig. 152 Side assist: S low ly approac hing veh icles and
veh icles in yo ur blind spot
@ Signal on outside mirror does not light
up
A vehicle approaching slowly -in the left-hand
lane for example - was detec ted by the sen
sors. Because of the small d ifference in speed
and the considerable distance from your vehi
cle, the signal on the outside mirror will not
light up
c::;, &. in Safety tips on page 136.
@ Informational stage signal lights up
The distance between your vehicle and that of
the slow ly approaching vehicle has narrowed .
The informationa l stage signal on the outside
mirror lights up.
As soon as the differe nce in speed and dis
tance is registered as notable if you were to
change lanes, a signa l on the mirror lights up.
Side assist will signal at the latest when a de-
tected vehicle enters your "b lind spot". .,,.
Page 135 of 340

@ Alert stage signal flashes
If you activate your turn signal in driving sit
uation @, the signa l light briefly flashes re
peatedly. Side assist is alerting you of a vehi
cle that you may not have noticed .
@ Tips
-The faster a vehicle approaches from the
rear, the sooner the signa l on the outside
mirror lights up. Side assist will signa l,
at the latest, when a detected vehicle en
ters your "blind spot".
- When vehicles approach very quickly,
changing lanes can be dangerous even if
the signal on the outside mirror does not
light up.
Driving situation: Vehicles dropping
back slowly
Applies to vehicles: with side assist
®
Fig . 153 Side assist: Vehicles dropp ing back s lowly
CD Signal on outs ide mirror does not light
up
The vehicle that you passed has not yet been
detected by side assist . The signal on the out
side mirror does not light up
q .& in Safety
tips on page 136.
Audi side assist 133
@ Informational stage signal lights up
A vehicle dropping back slowly on the r ight
(difference in speed of less than 9 mph, or lS
km/h) has been detected by side assist. The
informational stage signa l on the outside mir
ror lights up.
@ Alert stage signal flashes
If you activate yo ur turn signal in driving sit
uation @, the signal briefly flashes repeated
ly. Side assist is alerting you of a vehicle that
you may not have noticed.
Driving situation: Vehicles dropping
back quickly
Applies to vehicles: with side assist
®
Fig. 154 Side assist: Veh icles dropp ing back quickly
CD Signal on outside mirror does not light
up
T he vehicle just passed has not yet been de
tected by side ass ist. The sign al on the out
side mirror does not light up
q .& in Safety
tips on page 136 .
@ Signal on outside mirror does not light
up
The vehicle dropping back quickly on the right
( difference in speed of more than 9 mph, or
lS km/h) has been detected by side assist,
1J1>
Page 136 of 340

134 Audi side assist
but is not considered notable in the event of a
lane change, because it is dropping back so
quickly. The signal on the outside mirror does
not light up¢.&.
in Safe ty tips on page 136.
@ Signal on outside mirror does not light
up
If you activate your turn signal in driving sit
uation @, the signal still does not light up on
the outside mirror¢.&.
in Safe ty tips on
page 136 .
MMI settings
Applies to vehicles: with side assist
The basic brightness se tting of the signal on
t he ou tside mirror can be adjusted via the
MMI .
.. Select : I CARI function button> Systems*
control button > Audi side assist. Or
.. Select :
I CAR ! function button > Car systems*
control button > Driver assist > Audi side
assist.
The brightne ss of the sign al light for both the
informational and alert stages is automatical
ly adjusted to ambient light conditions. In ad
dition, you can adjust the
basic brightness
separately, via the brightness function.
While making the adjustment, the new
brightness setting is displayed briefly . The
brightness displayed is that of the informa
tional stage signal. The alert stage signal
brightness is linked to the informational stage
signal brightness.
The informational stage signal brightness
should be adjusted so that you notice the sig
nal illumination when you look in the outside
mirror, but not when you look forward
through the windshield.
In very dark or light surroundings , the auto
matic brightness setting adjusts signal light
brightness to maximum or minimum intensi
ty, as needed. In circumstances such as these,
you may not notice any change in the bright
ness on the outside mirror when adjusting the
basic brightness .
You may not notice the change until lighting
conditions are normal again.
(D Tips
- Side assist is not active when the basic
brightness is adjusted. The signal light
comes on briefly to help you make the
adjustment.
- Your settings are automatically stored
and assigned to the remote control key
being used.
· General information '
Applies to vehicles : with side assist
Side assist has limits and canno t detect
vehicles under all road and weather condi
tions . Please remember system limitations
and never rely on the system, especially when:
- driving through curves¢
page 134,
-lanes are of different widths¢ page 135.
' When driving through curves
Applies to vehicles: with side assist
Side assist cannot detect vehicles in curves
with a turning radius of less than 328 feet
(100 m).
When driving through a curve, it is possible
that side assi st may register a vehicle two
lanes over, and the signal on the outside mir
ror will light up.