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Vehicles moving up ahead but offset in the lane cannot be detected
by ACC until they are in sensor range. •
Applies to vehicles: with Adaptive Cruise Control
Lane changes by other vehicles
0
F ig . 176 A ve hic le
c h anges la n es
Vehicles that cut into your lane a short distance in front of you
cannot be detected by ACC until they are in sensor range.•
Applies to vehicles: with Adaptive Cruise Control
Vehicles that are difficult to detect
~==========--;; !
Contro ls and eq uip
ment
Fig . 177 T wo-wheel ed
ve hicle drivi ng a he ad
Some vehic les moving up ahead in your lane of travel are difficult to
detect, for example two -wheeled vehicles, vehicles with high
ground clearance, loads sticking out the back. Vehicles like this are
often detected late or in some si tuations not at all. •
Applies to veh ic les: with Adaptive Cruise Contro l
Stationary vehicles
i-----------------.. ~
;
Fig. 178 Turnin g and
sta tio na ry ve hic le
F ig. 179 S hee ring out
a nd stat ionary v ehicle
If a vehicle that has been detected by ACC exits the highway or
sheers out into the neighboring travel lane, and there is a stationary
vehic le ahead of that vehicle, ACC will not detect or react to that
stationary vehicle~ fig. 178 and~ fig. 179. •
Vehicle care I I irechnical data
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Audi braking guard
App lies to vehicles: with Adaptive Cruise Contro l
Description
Audi braking guard warns you of a possible collision with
a moving vehicle up ahead.
F ig. 180 Disp lay in t he
i nstrumen t cluster
The Audi braking guard is active from a speed of approx. 20 mph
(30 km/h) and works within the system limits=>
page 165 even when
the Adaptive Cruise Control is deactivated.
A radar sensor is built into the front of the vehicle=>
page 154,
fig. 160. The system is intended to measure the distance to reflec
tive surfaces. If a measurement is not possible, the system does not respond.
When the measurement has been taken, the system can recognize a possib ly hazardous s ituation, for example, when a vehicle up
ahead in your lane of travel sudden ly brakes or when your own
vehic le is mov ing at high speed towards a much s lower vehic le up
ahead. As soon as the system senses that a possible collision with
t he vehicle up ahead can only be avoided by immediate full brake
application or by an avoidance maneuver, a warning appears.
The system has a default response time to be able to signal before a co llision occurs. This system response time is automatica lly
reduced if you acce lerate actively, for example to join a highway. Braking, transverse acceleration and the steering angle can lead to
a reduced system response time. The warning is deact
ivated if you
begin to overtake with full acceleration.
The system can make you aware of two different hazardous situa
t ions:
Distan ce
The distance warning is g iven if the system calculates that there is
not enough distance to the vehic le up ahead a period of more than
5 seconds . If the distance is less than 30 feet (9 meters) at 50 mph
(80 km/h), for example, an optical display comes on in the instru
ment cluster=> fig. 180.
If the vehicle ahead brakes sharply, Audi braking guard cannot help
you to avoid a co llision, even in the case of an immed iate response .
T ake immediate action to avoid the collision 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 vehic le ahead brakes sharply, the Aud i braking guard calculates
t he point from which a co llision can only be avoided by full braking
or by an avoidance maneuver. If a warning does sound, a possible
collision with the vehicle in front can only be avoided through an
evasive maneuver or by braking.
The warning is given in two stages :
• Pre-warning: A visual disp lay appears in the instrument cl uster
and a warning tone sounds.
• Acut e warning : If you do not respond to the pre -warning, the
second stage warning is given . A quick brake application helps to
direct your attention to the road and traffic situation .
Under heavy braking, the brake assistant::::>
page 154also he lps you
benefit from maximum braking efficiency. _..
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& WARNING
Inattention can cause collisions, other accidents and serious
personal injuries.
• Always pay close attention to the traffic , even when the Audi
braking guard is switched on. The Audi braking guard provides a
warning but does not brake the car for you. You must apply the
brakes yourself!
• Always keep the safe and legal distance between your vehicle
and vehicles up ahead.
• Audi braking guard works within limits and will not respond
outside the system limits, for example when approaching a
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 Audi brak ing
guard works within defined detection and range limits that may
prevent the proper detection of other 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 detected at all.
• Always pay careful attention to the traffic situation and be
ready to intervene and be ready to take complete control when
ever necessary .
• Reflective surfaces including crash barriers or tunnel entrances
may impair the function of the radar sensor . •
Controls and equip
ment
App lies to veh ic les: with Adap tive Cru ise Contro l
Settings in the MMI
The sett ing s of the Aud i braking guard are performe d in
the MM/ .
Fig. 181 MMI -Display :
Audi braking guard
Settings regarding the system and the ear ly warn ing can be
adju sted to the respect ive u ser and saved in the MML This
can on ly be done with the engine run ning.
Switching the system on and off
- Press the I CAR ] func tion b utton .
- Se lect Systems * in the
CAR menu .
Se lect Audi braking guard . The Audi braking guard menu
appears => fig. 181.
Se lect System on to switch the system on or off t o swi tch
the system off.
Switching the early warning on and off
P res s the I CAR I functio n button .
Select Systems * in the
CAR menu .
I • •
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- Select Audi braking guard. The Audi braking guard menu
appears.
Select
Early warning on to switch the acoustic and visual
warning on or
off to switch the system off.
[ i] Tips
When handing over the keys to another person, the previous
settings are adopted if the Audi braking guard is activated
=> page 53. •
Applies to vehicles: with Adaptive Cruise Contro l
Driver's information in the instrument cluster
display
braking guard brake jolt
This message appears when the Audi braking guard applies the
brakes during a second stage (acute) warning.
braking guard off
This message appears when the system has been deactivated via
the MMI. This message also appears briefly at each beginning of a
trip if the system is switched off.
This message also appears when the system is not available
because of a malfunction or if ESP is switched to the Offroad
mode :::>
page 288. The system can no longer warn of an impending
collision. •
Page 173 of 426

Audi lane ass is t -
-------------------------
Audi lane assist
Lane assist
Applies to veh icles : with lane assist
Description
Lane a ssist helps you keep y our vehicle in your lane .
Lane assist uses a camera to detect lane boundary lines. If the
system detects that your vehicle is about to leave a lane boundary
line, the steering wheel
vibrates to alert the driver. If lane assist
detects boundary lines on both sides of the vehicle's lane, the
system enters active standby mode, which is indicated by the green
indica tor light /: on the instrument cluster .
I f the system is in active standby mode and the turn signal is acti
vated before driving ov er the boundary line, the warning does not
occur since the sys tem allows for intenti onal lane changes.
The system is designed for driving on freeways and expanded high
ways and t hus works on ly at speeds of 40 mph (65 km/h) or mo re .
& WARNING
• Lane ass ist will not k eep your vehicle in your lane. The sy stem
only warns the d riv er w hen t he vehicle i s le av ing the lan e. The
driv er is alway s re spon sible for keeping the vehicle in the lane.
• The camera is not able to d ete ct all lane boundary lines and in
s o me cases might al so dete ct lane str ucture s or objects as
boundary lines . This c an le ad to in corre ct wa rning s or warnings
that fa il to go off at all .
• The camer a's visibili ty ca n be i mpaired by vehi cle s ahe ad of
you , for instan ce, or by rain , snow , h eavy spray or li ght shining into
th e cam era lens . Thi s can ca use lane as sis t to f ail to d ete ct
boundary line s. •
Con tro ls and eq uip
ment
Ap plies to vehi cles : wi th la ne assi st
Activating and deactivating
Fig . 1 82 Turn signal
l ev er: La ne assis t
butt on
F ig . 1 83 Win dshie ld:
L ane assist ca mera
v iewing win dow
Press the :::> fig. 182 button to activa te or deactivate the
syst em . T he/ : in dica tor ligh t on t he i nstrument c luster
will illuminate or go out.
Instrument c lu ster indi ca tor light
/: Ready:
The green indicator light shows that the system is ready
to use . A warning a lerts the drive r when the veh icle drives over
dete cted lane boundary l ines. .,.
Vehicle care I I irechnical data
Page 174 of 426

-Audi lane
assist --------------------
I Not ready: The yellow indicator light shows that the system is
turned on but unable to send a warn ing. This can be due to the
following:
• There are no boundary lines, or there is on ly one boundary line
present .
• The boundary lines are not detected (e.g. due to snow, dirt, wet
conditions or light shining into the camera lens).
• More than two boundary lines (such as at construction sites) are
located in the vehicle's lane.
• The vehicle's speed is below the speed needed to activate it,
which is about 40 mph (65 km/h).
• The lane is narrower than about 8 ft . (2.5 ml, or wider than about
16 ft. (5 ml.
• The curve is too sharp.
Notes on the instrument cluster display
When the lane assist turns off automatically, the instrument cluster
indicator goes out and one of the following messages appears on
the display:
Audi lane assist not available: Currently no sensor vision
This message appears when the camera can no longer function
because it cannot detect the boundary lines. This may be due to the
following :
• The exterior s ide of the camera viewing window=>
page 171,
fig. 183 is covered with dirt or ice. Clean this part of the windshield.
• The camera v iewing window is fogged up on the inside. In this
case, wait until the fog disappears before turning lane assist on
again.
• The system was unable to detect boundary lines over an
extended period of time due to road conditions (such as snow
covered lanes). Do not turn lane assist on again until the lines can
be more easily detected.
Audi lane assist not available
A temporary malfunction is preventing lane assist from operating .
Try turning on lane assist again a t a later time.
Audi lane assist: system fault
The system should be checked by an authorized Audi dealer or other
qualified workshop .
[ i ] Tips
• Make sure that the camera viewing window:::> page 171, fig. 183
is not covered by stickers or similar objects .
• Always keep the camera viewing window clean. This can usually
be done by operating the windshield wipers. •
Applies to vehicles: with lane assist
MMI settings
You can use the MM/ to adjust the warning time and
steering wheel vibration.
Setting the warning time
Press the I CAR] function button.
- Select
Systems * in the CAR menu .
- Select
Audi lane assist.
Fig. 184 MMI Display :
Setting the warning
time and stee ring
wheel vibration
Page 175 of 426

Audi lane a ssist -
----------------
-Sele ct Warning early , adaptive or late ~ page 172,
fig. 184 .
Setting th e st eering wheel vibration
- Press the
I CAR I function button.
- Selec t
Systems ·* in t he CAR me nu.
- Selec t
Audi lane a ssis t.
- Selec t Steering vibrat ion weak , medium or strong.
Setting th e warning tim e
Earl y:
This setting warns the driver before a wheel touches the
detected lane boundary line. The warning depends on the vehicle's
angle as it approaches the boundary line . If you approach a
boundary l ine gradua lly, the warning will occur ear lier. If you
approach the boundary line at a very sharp angle, the warning wi ll
occur just before a whee l touches the line.
Adapti ve : In this setting, the warning time adjusts to the character
istics of the road and the vehicle speed. The warning occurs later for
curves and occurs earlier for straight stretches of road. The warning
occurs later on narrow roads than on wide roads.
Late: This setting warns the driver when a whee l drives over the
detected lane boundary line.
Se ttin g th e steering wheel vibration
When adjusting the steering wheel vibration, the steering wheel
vibrates so that you can check the intensity you have set.
[ i ] Tips
• When making the adjustment, lane assist is not activated . The
steering whee l vibrates briefly only to assist you in changing the
setting .
• Your settings are automatically stored and assigned to the
remote contro l key being used. •
Controls and equip
ment I • •
Page 176 of 426

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Audi side assist
Lane Change Assistant
Applies to vehicles: with side ass ist
Description
The side assist helps you when changing lanes.
Fig. 185 Rear bumper:
Position of radar
sensors (not visible on
outside)
Fig . 186 Signal light
on the outside mirror -
driver's side
Side assist uses radar sensors (not visible on outside) => fig. 185 to
help the driver check blind spots, and see what is happening in
traffic behind the vehicle =>
page 176, fig. 188.
Signal lights are built into both outside mirrors=> fig. 186. The
signal light on the left outside mir ror assists when moving over into the left lane and the signal light on the right outside mirror assists
when moving over into the right
lane.
The signal light comes on to tell you that side assist has detected a
vehicle on that side and that the position of this other vehicle
should be taken into account if you were to change lanes. This is
called the
informational stage signal=> page 176. The informational
stage signal is designed so that you notice it only when you are
looking in the outside mirror .
When you activate the turn signal and side assist detects a vehicle
in a notable location, the corresponding signal on the outside
mirror flashes briefly and brightly several times. This is the
alert
stage signal
=> page 176. •
Appl ies to veh icles: with side assist
Activating and deactivating
Fig . 187 Driver's door:
Side assist button
Activating
Press the=> fig. 187 button. The indicator on the button
ligh ts up. ..,