2014 AUDI A6 warning

82 On the road
Speed warning system
Introduction
The sp eed warning system helps you to stay
und er a specified maximum speed .
The speed warning system warns you if you
are exceeding the maximum speed that you
have set . You will hear a warning tone when
your speed exceeds the stored value by ap­ prox imately 3 mph (3 km/h) . An indicator
light . (USA models)/ . (Canada mode ls) in
the instrumen t cluster display also t urns on at
the same time . The indicator light
a;m
turns off when the speed decreases below the
stored maximum speed.
Sett ing a th res hold is re commended if yo u
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.
(1} Tips
Even tho ugh your vehicle is equipped with
a speed warning system, you should st ill
watch the speedometer to make sure you are not driving faster than the speed lim it.
Setting the threshold
You can set, change and delete the threshold
in the
MMI.
.,.. Se lect: I CAR I function button> (Car)* sy s­
tems
control button > D rive r assist > Speed
warning .
You can set any threshold between 20 mph
(30 km/h) and lS0 mph (240 km/h). Settings
can each be adjusted in increments of 6 mph
(10 km/h).
Cruise control
Switching on
Applies to veh icles: w ith cruise control
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph
(30 km/h) .
0
f
~
0
Fig. 8 1 Contro l leve r wit h set b utto n
Fig . 82 Disp lay: Se lecte d sp eed
.,.. Pull the lever to position (D ¢ fig. 81 to
sw itch the system on.
.,.. Drive at the speed you wish to set .
.,.. Press button ® to set that speed.
T he s to red speed and t he indicator light
@;\~~14 (US models) !Iii (Canadian models) ap ­
pear in the instrument cluste r display
¢ fig. 82 . The disp lay may vary, depend ing on
the type of display in your vehicle.
T his information is also shown briefly in the
Head-up Disp lay* .
T he speed is kept constant via an engine out­
put ad justmen t or active brake inte rvent ion.
_& WARNING
=
- Always pay a ttent ion to traffic even when
the cruise control is switched on . You are
always responsib le 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 twisting roads and
when road conditions are poor (such as
ice, fog, grave l, heavy rain and hydro­
planing) -risk of acc ident .
- Turn off the cruise control temporari ly
when entering turn lanes, highway exit lanes or in const ruction zones .
- Please note that inadvertent ly "rest ing"
yo ur foot on the accelerato r peda l causes
the cruise control not to brake. This is
because t he cr uise con trol is overr idden
by the driver's a cce le rat ion.
- If a brake system malfunction such as
overheat ing occurs when the cruise con­
t ro l system is sw itche d on, t he braking
f unction in the system may be switched
off. The other cr uise control f unctions re ­
main active as long as the indicator light
(~j(O~i4 (US models) !Iii (Canad ian mod­
els) is on.
The brake lights illuminate as soon as the brakes decelerate automat ica lly.
Changing speed
App lies to vehicles: with cruise contro l
.. To increase/decrease the speed in incre­
ments, tap the lever in the
0 10 d irection
<=>
page 82, fig . 81
.. To increase/dec rease the speed qu ickly, hold
the leve r in the
010 direction unti l the de­
s ir ed speed is d isplayed.
You can a lso p ress the accelerato r pedal down
to inc rease your speed, e.g . if you want to
pass someone. The speed yo u saved ea rlier
will resume as soon as yo u release the acceler ­
a tor peda l.
I f , however, you exceed your saved speed by
6 mp h (1 0 km/h) fo r longe r th an 5 mi nutes,
the cruise cont ro l w ill turn off te mpor arily.
The green sym bo l
M;\1)~14 (US models) !Iii
On th e ro ad 83
(Canadian mode ls) in the disp lay will go out
but the saved speed remains the same .
· Presetting your speed
Applies to vehicles : with cruise control
You can preset your desired speed while the
vehicle is not moving .
.. Switch on the ignition.
.. Pull leve r into posi tion (!)<=>
page 82,
fig. 81 .
.. Press the lever in the 0 or 0 direction to
increase or decrease your speed .
.. Release the lever to save that speed.
T his function makes it possib le, for examp le,
to save the speed you want before driving on
the h ighway. Once on the highway, act ivate
the cru ise control by pulling the lever toward
(!) .
Switching the system off
App lies to vehicles : with cruise control
Temporary deactivation
.. Press the brake pedal, or
.. Press the leve r into position @(not cl icked
into place)
<::;> page 82 , fig . 81, or
.. Dr ive fo r longer t han 5 m inutes at mo re
t han 5 mph (10 km/h) above the stored
speed.
Switching off completely
.. Press lever into position @ (clicked into
plac e), or
.. Switch t he ignit ion off .
The system retains the saved speed if you de ­
activate the cruise control temporar ily . To re­
sume the saved speed, re lease the brake ped­
al a nd pu ll th e leve r to pos it ion (!).
Switc hing the ignit ion off erases the saved
speed .
_& WARNING
You shou ld only retu rn to the saved speed
if it is not too fast for the c urrent traffi c
conditions -ris k of an accident!

84 Audi ad apti ve cruise control and bra king gu ard
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 regu lat ing 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 90.
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 control
Fig. 83 Front of th e veh icle: senso rs and video camera
The areas that conta in the radar and ultrason­
ic sensors and the v ideo camera
c:::> fig. 83
must neve r be cove red by stic kers or other ob­
jects or obstructed w ith dirt, insects, snow or
i ce that will interfere with the adaptive cruise
control system and braking guard. For infor­
mation on cleaning, refer to
c:::> page 210. The same applies for any modifications made in
the front area.
T he function of the adaptive cru ise contro l
system and braking guard is limited under
some cond itions:
- Objects can only be de tected when they are
w ith in sensor range
c:::> page 86, fig. 86.
- The system has a limited ability to detect
objects that are a short d istance 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 all.
-When driving through curves
c:::>page 85 .
-Stat ionary objec ts c:::> page 85.
& WARNING
A lways pay attention to traffic when adap ­
tive cruise contro l is switched on and brak­
ing g uard 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 a lways take action to avo id
a collis ion . The driver is a lways respons ible
fo r braking a t the co rrec t time.
- Imp roper use of adaptive cru ise control
can cause collisions, other acc idents and
serious pe rsonal in jury.
- Never let the comfort and convenience
that adaptive cruise control and braking gua rd offer d istract you from the need to
be alert to traffic condit ions and the
need to rema in in fu ll control of your ve­
h icle at a ll times,
- Always remember that the adaptive
cruise 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 registered by the radar sensors,

Audi adapt ive crui se c ontrol an d bra kin g guard 85
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 be ing 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 le r 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. 8 4 Exampl e: dri vin g in to a curve
When dr iving into a curve c:> fig. 84 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. 85 Ex ampl e: object chang ing l anes and sta tio nar y
ob jec 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 veh icle @, 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 .,._

Audi adaptive cruise control and braking guard 87
tachometer @and is also shown briefly in
the display @
c::> fig. 88.
.. You must also press the brake pedal 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
ra 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 contro l 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
c::> page 89, Prompt for driver
intervention.
© Display
If adaptive cruise control is not shown in the
disp lay, you can call it up with the multifunc­
tion steering wheel buttons
c::> page 24.
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
c::> page 89.
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
c::> page 88 . 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. 89 Selector lever: changing the speed
.. To increase or reduce the speed in incre­
ments,
tap the lever up or down.
-0:, N 0 ± ... a)
.. To increase or reduce the speed quickly, hold
the lever up or down until the red LED @
reaches the desired speed
c::> page 86,
fig.BB.
~

88 Audi adaptive cruise control and braking guard
Following any changes, the new stored speed
will be disp laye d briefly in the disp lay @
r::!) page 86, fig. 88 .
Driving in stop-and-go traffic
Applies to vehicles: with Audi adaptive cruise control
The adaptive c ruise co ntrol system a lso as­
sists you in stop -and-go t raffic. If a previous
detected vehicl e ahead stops, yo ur vehicle will
b rake to a stop, within the limi ts of the sys­
tem.
• To res ume driv ing with adaptive c ruise con­
t ro l, tap the accelerator p eda l or
• Pull th e l ever toward yo u into posit io n @
r::!) page 88, fig. 90 .
(D Tips
- If ad aptive cru ise con trol is active an d
you r vehicle do es no t start dr iving as ex­
p ected after pulling the lever once, you
ca n s tart ou t agai n by t ap pin g th e accel­
e ra to r p edal.
- If an ob sta cle is dete cte d when y our ve­
h icl e s tarts d riv in g, the sys tem w ill
p rompt y ou to ta ke ove r¢
p age 89.
Your ve hicl e wi ll drive more s low ly w hen
starting. This may a lso happe n in some
s ituations when no obstacle is apparent.
Interrupting cruise control
App lies to vehicles: with Audi adaptive cruise co ntrol
Fig. 90 Se lector leve l
Requi rement: adaptive cruise co ntro l must b e
switched on .
Overriding cruise control
• To a cce lerate manu ally, pull th e lever to ­
ward you into position @and ho ld it the re .
The message
ACC override a ppears . Or
• press the acce lerator pedal.
• To resume cruise cont ro l, re lease the lever
or take y our foot off the accelerato r pedal.
Canceling cruise control while driving
• Move the lever in to position @. The mes­
sage
ACC standby a ppears. Or
• press the brake pedal.
• To resume the stored speed, move the lever
into position @.
Canceling cruise control when stopped
• Push t he lever away from yo u into posit ion
@ . The message
ACC standby appea rs .
• To resume cruise contro l, press the brake
pedal a nd pu ll th e lever towa rd you into po­
sition @.
_&. WARNING ~ -
Neve r resume the stored speed if th e
speed is too hig h fo r prevailing road, t raf­
fic or weat her co ndit ion s.
Setting the distance
Applies to vehicles: wit h Audi adapt ive cruise control
Fig. 91 Selec to r lever : setting t he dista nce
• Tap the switch to display the current set dis­
tance
<=> fig. 91.
• To inc rease or reduce the d ista nce by incre­
ments, tap the switch again to the left o r
r ight. The distance be tween the two vehicles
w ill change in the ins trum en t cl ust er di s-
p la y.
IJII>

Audi adaptive cruise control and braking guard 89
When approaching a moving vehicl e up ahead,
the adaptive cruise contro l system automati­
cally brakes to match that object's speed and
then maintains the stored distance.
If the ve­
hicle ahead accelerates, adaptive cruise con­
trol will also accelerate up to the stored
speed .
The higher the speed, the greater the distance
in yards (meters) ¢.&. . The
Distance 3 setting
is recommended .
The distances prov ided are specified values .
Depending on the driving situation and the
how the vehicle ahead is driving, the actual
distance may be more or less than these tar ­
get distances.
The various symbols for the time increments appear briefly in the information line @
¢
page 86, fig . 88 when you change the set ­
tings .
,::::::,_,::::::, ___ Distance 1: This setting corre-
sponds to a distance of 92 feet/28 meters
when traveling at 62 mph (100 km/h), or a
time interval of 1 second.
,::::::, __ ,::::::, __ Distance 2: This setting corre­
sponds to a distance of 118 feet/36 meters
when traveling at 62 mph (100 km/h), or a
time interval of 1.3 seconds .
,::::::, ___ ,::::::,_ Distance 3: This setting corre-
sponds to a distance of 164 feet/SO meters
when traveling at 62 mph (100 km/h), or a
time interval of 1.8 seconds .
,::::::, __ __ ,::::::, Distance 4: This setting corre-
sponds to a distance of 210 feet/64 meters
when traveling at 62 mph (100 km/h), or a
time interval of 2.3 seconds .
A WARNING
Following other vehicles too closely in­
creases the risk of collisions and serious
personal injur y.
- Setting short distances to the traffic
ahead reduces the time and distance
available to bring your vehicle to a safe
stop and makes it even more necessary
to pay close attention to traffic. -
Always obey applicable traffic laws, use
good judgment, and select a safe follow­
ing d istance for the traff ic, road and
weather conditions .
(D Tips
-Distance 3 is set automatically each time
you switch the ignition on.
- Your standard settings are automatically
stored and assigned to the remote con­
trol key being used.
Selecting the driving mode
Applies to vehicles: with Audi adaptive cruise control
.. Select the desired driving mode in dr ive se­
lect <=;>
page 100.
(D Tips
Your settings are automat ically stored and
assigned to the remote control key being
used.
Prompt for dr iver intervention
Applies to vehicles: with Audi adaptive cruise contro l
Fig. 92 Instrument cluster: req ues t fo r drive r inte rven­
tio n
In certain situations, the system will prompt
yo u to take action . This could happen, for ex­
amp le, if braking by the adaptive cruise con­
trol system is not enough to maintain enough
distance to the veh icle ahead .
The indicator light
I and the symbol in the
display will warn you about the s ituat ion
<=;> fig. 92. You will also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down.

90 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
Applies to vehicles: with Audi adaptive cruise control
Fig. 93 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. 93. You will a lso
hear an acoustic signal.
ll This is not ava ilable in some co un tri es .
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 coll is ion is imminent, the system will
first provide an
acute warning by briefly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking g uard can brake wit h increas ing
force w ith in 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 collision
1l . Full deceleration
at high speeds occurs only in vehicles with
adapt ive 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 192.
Which functions can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the MMI
¢ page 91, 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 respons ible for braking at the cor­
rect time.
- Always pay close att ent 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 ..,.