Page 81 of 306

Messages in the instrument cluster
display
Applies to vehicles: with Start-Stop-System
Start-Stop system deactivated: Please re
start engine manually
This message appears when specific condi
tions are not met dur ing a s top phase and the
Start -Stop-System w ill
not be able to restart
the eng ine.
If the Dor R selector lever posi
tions were engaged, P will be selected auto mat ica lly. The engine must be started with
the
! START ENGINE STOP I button .
Start-Stop system: System fault! Function
unavailable
There is a malf unctio n in t he Star t-Stop-Sys
tem . Dr ive the veh icle to an authorized repair
fac ility for servicing as soon as possible to cor
rect the malfunction .
Speed warning system
Introduction
The speed warning system helps you to stay
under a specified maximum speed.
The speed warning system warns you if you
a re exceeding the max imum speed that you
have set. You w ill hear a warn ing tone when
your speed exceeds the stored va lue by ap
p rox ima tely 3 mph (3 km/h) . An indicato r
l ight . (USA models)/ . (Canada mode ls) in
t he ins trumen t cluster display also turns on at
the same time. The indicator light
a;m
turns off when the speed decreases below the
stored maximum speed.
Setting a threshold is recommended if you
wou ld like to be reminded when you reach a
certain maximum speed . Situations where you
may want to do so include driving in a country
with a general speed limit or if there is a
specif ied max imum speed for winter tires.
(D Tips
Even tho ugh your vehicle is equipped with
a speed warning system, you should st ill
On the road 79
watch the speedometer to make sure you
are not driving faster than the speed limit.
Setting the threshold
You can set, chang e and delete the threshold
in the MMI.
.,. Select: I CAR I function button > (Car)* sys
tems
control button > Driver assist > Speed
warning.
You can set any threshold between 20 mph
(30 km/h) and lS0 mph (240 km/h). Sett ings
can eac h be adjusted in increments of 6 mph
(10 km/h).
Cruise control
Switching on
Applies to vehicles: with cruise control
The cruise control system makes it possible to
drive at a constant speed starting at
20 mph
(30kmlh).
0
f
®t
0
Fig. 80 Contro l lever with set button
Fig . 81 Display: Selected speed
.,. Pull the lever to position © c::> fig. 80 to
sw itch the system on.
.,. Drive at the speed you w is h to set.
.,. Press button @ to set that speed.
Page 82 of 306

80 On the road
The stored speed and the ind icator light
A;(l)~i~ (US mo dels) 1,'I (Canadian mode ls) a p
pea r in the instrument cluster d isp lay
c::> fig. 81. The display may vary, depending on
the type of d isplay in your vehicle .
This informat ion is also shown briefly in the
Head -up Display*.
The speed is kept constant v ia an engine o ut
put adjustment or active b rake intervention.
A WARNING
- Always pay attention to traffic even when
the cruise control is switched on. You are
always responsible for your speed and
the distance between your vehicle and
other vehicles .
- For safety reasons, the cruise control
should not be used in the city, in stop
and-go traff ic, on twist ing roads and
when road conditions are poor (such as ice , fog, grave l, heavy ra in and hydro
planing) -risk of accident.
- Turn
off the cruise control temporar ily
when entering turn lanes, highway exit lanes o r in construc tion zones.
- Please note that inadvertently "rest ing"
yo ur foot on the accelerator peda l causes
the cruise control not to brake . T his is
because the cr uise control is overridden
by the d river's acce leration .
- If a brake system malfunc tion such as
overheating occurs when the cruise con
tro l system is switched on, the braking
function in the system may be switched
off. The other cruise control functions re
ma in active as long as the indicator light
[~;rn~i~ (US models) !Ill (Canad ian mod
els) is on .
(j) Tips
The brake lights illuminate as soon as the
brakes decelerate automat ica lly.
Changing speed
Applies to veh icles: w ith cru ise control
., To increase/decrease the speed in inc re
ments, tap the lever in the
0 10 direc tion
c::> fig . 80
., To increase/decrease the speed quic kly,
hold t he lever in the
0 10 direction until
the desired speed is displayed.
You can also press the accelerator pedal down
to increase your speed, e.g . if you want to
pass someone . The speed you saved earlier
will res ume as soon as you release the acceler
ator pedal.
If, however, you exceed your saved speed by
6 mph (10 km/h) for longer than 5 m inutes,
the cr uise control wi ll turn
off temporari ly.
The green symbol
A;(l)~i~ (US mode ls) 1,'I
(Canadian mode ls) in the display will go out
but the saved speed rema ins the same .
Presetting your speed
Applies to veh icles : w ith cru ise control
You can preset your desired speed while the
vehicle is not moving.
., Switch on the ignition.
., Pull lever into position
(D c::> fig . 80.
., Press t he lever in the 0 or 0 direction to
increase or decrease your speed .
., Release the lever to save that speed .
This function makes it possible, for examp le,
to save the speed you want before dr iving on
the h ighway. Once on t he h ighway, act ivate
the cru ise control by pulling the lever toward
(D .
Switching the system off
Applies to veh icles: w ith cruise control
Temporary deactivation
., Press the b rake pedal, or
., Press the leve r into posi tion @(n ot clicked
into place)
c::> fig. 80, or
... Drive for longer t han 5 min utes at more
than 5 mph (10 km/h) above the stored
speed.
Page 83 of 306
Switching off completely
"' Press leve r into posi tion @ (clicked in to
place), or
"' Switc h the ignition off.
The system reta ins the saved speed if y ou de
activa te t he cr uise con trol tem porarily. To re
sume the saved speed, release the b rake pe d
a l and pull the lever to position @.
Sw itch ing the ig nition o ff erases the saved
spee d.
& WARNING
You should only return to t he save d sp ee d
if it is not too fast fo r th e cur rent traffic
condi tions -risk of an accident !
On the road 81
Page 84 of 306

82 Audi adaptive cruise control and braking guard
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise co ntrol
The adaptive cruise control system assists the
driver by regulating 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. This helps 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
c:::> page 88.
Adaptive cruise control and braking guard
have technical limitations that you must
know, so please read this section carefully, un
derstand how the system works and use them
properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise co ntrol
Fig. 82 Front of the veh icle: sensors and video camera
The areas that conta in the radar and ultrason
ic sensors and the v ideo camera
c:::> fig. 82
must never be cove red by stic kers or other ob
jects or obstructed with dirt, insects, snow or
ice that will interfere w ith the adaptive cruise
control system and braking guard. For infor
mation on cleaning, refer to
r:;, page 211. The same applies
for any modifications made in
the front area.
T he function of the adaptive cruise control
system and braking guard is limited under
some cond itions:
- Objects can only be de tected when they are
w ithin sensor range
c:::> fig . 85.
-The system has a limited ability to detect
objects that are a short distance ahead, off
to the side of your vehi cle or mov ing into
your lane.
- Some kinds of veh icles are hard to detect;
for examp le motorcycles, veh icles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at al l.
-When drivin g through curves
c:::> page 83 .
-Stat ionary objec ts c:::>page 83.
& WARNING
A lways pay attention to traffic when adap
tive cruise contro l is switched on and brak
ing guard is active. As the driver, you are
still respons ible for starting and for main
taining speed and distance to other ob
jects. Braking guard is used to assist you .
The dr iver must always take action to avo id
a collis ion . The driver is a lways respons ible
fo r braking at the correct time.
- Improper use of adaptive cru ise control
can cause collisions, other acc idents and
serious personal injury.
- Never let the comfort and convenience
that adaptive cruise control and braking
gua rd offer distract you from the need to
be alert to traffic conditions and the
need to remain in full control of your ve
hicle at a ll times,
- Always remember that the adaptive
cr uise control and braking guard have
limits -they will not s low the vehicle
down or maintain the set distance when
you drive towards an obstacle or some
thing on or near the road that is not
mov ing, such as vehicles stopped in a
traffic jam, a stalled o r disabled vehicle.
I f re gistered by the radar sensors,
Page 85 of 306

Audi adapt ive crui se c ontrol an d bra kin g guard 8 3
vehicles or obstacles that are not moving
can trigger a collision warning and if con
firmed by the video camera, an acute col lis ion warn ing.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condit ion and/or in bad weather
(such as ice, fog, gravel, heavy rain and
hydroplan ing). Using the system under
these cond itions cou ld result in a co lli
sion .
- Switch adaptive c ruise control off tempo
rar ily when driv ing in turning lanes, on
expressway exits or in construction
zones . This prevents the vehicle from ac
celerating to the set speed when in these
situations .
- The adapt ive cru ise control system w ill
not brake by itse lf if you put your foot on
the accelerator pedal. Doing so can over ride the speed and distance regulation .
- When approaching stationary objects such as stopped traffic, adaptive cruise
control will not respond and braking
guard w ill have limited function.
- The adapt ive cruise control system and
braking guard do not react to people , an
ima ls, objects crossing the road o r on
coming objects .
- The function of the radar sensors can be
affected by reflective objects such as
guard ra ils, the entra nce to a tunnel,
heavy rain or i ce.
- Never follow a veh icle so closely that you
cannot stop your vehicle safe ly. The
adaptive cruise cont ro l c anno t slow or
brake the veh icle safely when you follow
another vehicle too closely. Always re
member that the automatic braking
funct ion cannot bring the veh icle to a
sudden or emergency stop under these
conditions .
- To prevent unintended operation, always
switch ACC off when it is not being used. (D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and underbody. That cou ld affect the adaptive
cruise control system and brak ing guard .
Have your authorized Aud i dea ler or a u
thorized Audi Serv ice Facility check their
funct ion.
In curves
Applies to vehicles: with Audi adaptive cruise control
I
F ig. 83 Ex ampl e: dri vin g in to a curve
When dr iving into a curve c:> fig. 83 and out of
a cu rve, the ad aptive cruise con trol m ay react
to a vehicle in the next lane and apply the
brakes . You can override or prevent the brak
i ng by pressing the accelerator pedal b riefly.
Stationary objects
Applies to vehicles: with Audi adaptive cruise control
Fig. 8 4 Exampl e: object chang ing l anes and s ta tio nar y
objec t
The adaptive cru ise con tro l system only reacts
to objects that a re mov ing o r th at the system
has a lready detected as moving . For examp le,
if a vehicle @, which has a lready been detect-
ed by the adaptive c ruise contro l, tu rns o r
changes lane s and another stationary vehicle .,._
Page 86 of 306

84 Audi adaptive cruise control and braking guard
@ is located in front of that vehicle, the sys
tem will not react to the stationary vehicle.
Audi adaptive cruise control
Description
Applies to vehicles: with Audi adaptive cruise control
Fig. 85 Detection range
What can adaptive cruise control do?
The adaptive cruise control system uses video,
radar and ultrasou nd. Moving vehicles ahead
can be recognized up to about 650 feet (200 m) away.
On open roads w ith no traffic, adaptive cruise
control works like a regular cruise control sys
tem. The stored speed is maintained. When
approaching a moving vehicle detected up
ahead, the adaptive cruise control system au
tomatically s lows down to match that vehi
cle's speed and then maintains the distance
that the driver previous ly stored. As soon as
the system does not detect a vehicle up
ahead, adaptive cruise control accelerates
back up to the stored speed.
In stop-and-go traffic, adaptive cru ise control
can brake until the vehicle stops and acceler
ate again under certain conditions and if this
is possible within the system's limits and ca
pabilities¢
page 86. Adaptive cruise control
will not make an emergency stop .
Which functions can be controlled?
When you switch adaptive cruise contro l on,
you can set the current speed as the "control
speed" ¢
page 84, Switching on and off.
When driving, you can stop cruise control
¢
poge 86 or change the speed ¢ page 85
at any time.
You can also set the distance to the object
ahead and set the adaptive cruise control driv
ing program ¢
page 86.
Switching on and off
Applies to vehicles: with Audi adaptive cruise control
Fig. 86 Selector lever: switching on/off
Fig. 87 Instrument cluster: adaptive cruise control
You can set any speed between 20 mph and
95 mph (30 and 150 km/h).
Indicator lamps and messages in the instru
ment cluster d isplay inform you about the cur
rent system status and settings.
An additional indicator appears in the Head
up D isplay*.
Switching adaptive cruise control on
.,. Pull the lever toward you into position (D
¢ fig. 86. ACC standby appears in the in
strument cluster display.
Setting the speed and activating
regulation
.,. To set the current speed, press the ISETI
button ¢ fig. 86. The set speed is shown in 1111-
Page 87 of 306

Audi adaptive cruise control and braking guard 85
the tachometer @and is also shown briefly
in the display @¢
fig. 87 .
.. You must also press the brake peda l when
the vehicle is stopped.
Switching adaptive cruise control off
.. Push the lever away from you into position
@ until it clicks into place. The message
ACC off appears.
@ Indicator lights
r• 1 -Adaptive cruise control is switched on. No
vehicles are detected up ahead . The stored
speed is ma intained.
I -A moving vehicle is detected up ahead .
The adaptive cruise control system regulates
the speed and distance to the moving vehicle
ahead and acce lerates/brakes automatical ly.
fa) -Adaptive cruise control is switched on. A
moving vehicle up ahead was detected. Your
ve hicl e remains stopped.
I -When automat ic braking is not able to
keep enough distance to a previously detected
moving vehicle up ahead, you must take con
trol and brake¢
page 87, Prompt for driver
intervention.
© Display
If adaptive cruise control is not shown in the
d isp lay, you can call it up with the multifunc
tion steering wheel buttons ¢
page 23.
Based on the symbols in the d isplay, you can
determine if the system is maintaining a dis
tance to the vehicle ahead and what that d is
tance is.
No vehicle -No veh icle ahead was detected .
White vehicle -A vehicle ahead was detected.
Red vehicle -Prompt for the driver to take ac
tion
¢ page 87.
Both arrow s on the scale© indicate the dis
tance to the vehicle ahead. No arrow appears
when the vehicle is on an open road and there
is no object ahead . If an object is detected
ahead , the arrow moves on the scale . The
green zone on the scale shows the stored
distance. For information on changing the
stored distance, refer to ¢
page 86. If the
distance selected is too close or may soon be
come too close, the arrows move into the red
zone on the sca le .
A WARNING
Improper use of the adaptive cruise con
trol can cause collisions, other accidents
and serious personal injur ies .
- Pressing the
!SET ! button when driv ing at
speeds below
20 mph (30 km/h), will au
tomatically accelerate the vehicle to
20
mph (30 km/h), which is the minimum
speed that can be set.
(D Tips
-If you switch the ignit ion or the adaptive
cruise control off, the set speed is erased
from the system memory.
- You cannot switch the Electronic Stabili
zation Control (ESC) to the SPORT mode
when adaptive cruise control is switched
on.
Changing the speed
Applies to vehicles: with Aud i adapt ive crui se control
0
f
• 0
Fig. 88 Selector lever: changing the speed
.. To increase o r reduce the speed in incre
ments,
tap the lever up or down.
-0:, N 0 ± ... a)
.. To incr ease o r reduce the speed quickly,
hold the lever up or down until the red LED
@ reaches the desired speed¢
fig. 87.
Following any changes, the new stored speed
will be displayed briefly in the display @
¢fig. 87.
Page 88 of 306

86 Audi adaptive cruise control and braking guard
Driv ing in stop-and-go traff ic
App lies to vehicles: with Audi adaptive cruise control
The adaptive cruise co ntro l system a lso as
sis ts you in stop- and -go traff ic. If a previo us
detec ted veh icle ahead s tops, yo ur vehicle will
brake to a stop, within the limits o f the sys
tem .
,,. To resume driv ing wi th adap tive cruise con
t ro l, tap the accelerator pe dal or
,,. Pu ll the lever toward yo u in to posit ion @
¢fig. 89.
@ Tips
-If ada ptive cruise con trol is a ctive an d
you r vehicle does not start driving as ex
pected after pulling the lever once, you
can start out aga in by tapp ing the accel
erato r pedal.
- If an obstacle is detected when yo ur ve
h icle starts dr iv ing, the system w ill
prompt you to take over¢
page 87.
Your vehicle w ill drive more s low ly when
star ting . This may a lso happe n in some
s ituation s whe n no obstacle is apparent .
Interrupting cruise control
Applies to vehicles: with Audi adaptive cruise control
Fig. 89 Se lecto r leve l
Requ irement : adaptive cruise control must be
sw itched on.
Overriding crui se control
,,. To accelerate ma nually, pull the lever to
ward you into position @and hold it there .
The message
ACC override appears . Or
,,. press the accelerato r peda l. ,,.
To res ume cruise cont ro l, re lease the lever
or take your foot off the accelerato r pedal.
Canceling cruise control while driving
,,. Move the lever in to posi tion @. The mes
s a ge
ACC standby ap pears. Or
,,. press t he br ake pedal.
,,. To res ume the stored spee d, move the lever
into position @.
Canceling cruise control when stopped
,,. Push the leve r away from yo u into pos it io n
@ . Th e message
ACC standby appe ars.
,,. To res ume cruise cont ro l, press the brake
pedal an d pull th e lever toward you into po
sition @.
A WARNING
• -
Never resume the stored speed if the
sp eed is too high for p revailing r oad, traf
f ic or weat her condit io ns .
Setting the distance
Applies to vehicles: with Aud i adapt ive cru ise contro l
Fig. 90 Se lecto r lever : setting t he distance
,,. Tap the switch to display the current set dis
tance
¢ fig. 90 .
,,. To increase or reduce the d istance by incre
ments, tap the switch again to the left or
r ight. The d istance between the two vehicles
w ill change in the instrument cluste r dis
p lay .
When approac hing a mov ing vehicle up ahead,
the adaptive cruise control system automati
ca lly brakes to match th at object's speed and
Ill>