warning light AUDI A6 2012 Service Manual

Adaptive cruise control and braking guard 81
Setting the speed and activating
regulation
~ To set the current speed, press the !SET !
button ¢ fig. 81. The set speed is shown in
the tachometer @and in the display
¢
fig . 82. 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 p lace. The message
ACC off appears.
Indicator lamps and messages in the instru­
ment cluster display inform you about the cur ­
rent system status and settings.
@ Indicator lights
Pl -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 automatica lly.
Mi -adaptive cruise control is swit ched on. A
moving vehicle up ahead was detected . Your
vehicle remains stopped and will not start
driving automatically.
I -When automat ic brakin g is not able to
keep enough distance to a previously detected
moving vehicle up ahead, you must take con ­
trol and brake¢
page 82, 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
¢page 23.
Based on the symbo ls in the display, you can
determine if the system is maintaining a dis­
tance to the vehicle ahead and what that dis­
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 82.
Both arrows 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.
T he green zone on the scale shows the stored
distance . For information on changing the
stored distance ¢
page 83. If the distance
selected is too close or may soon become too
close, the arrows move into the red zone on
the scale .
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 Program (ESP) to the SPORT mode
w hen adaptive cruise control is switched
on.
Driving in stop-and-go traffic
Applies to veh icles: w ith adaptive c ruise control
The adaptive cruise contro l system also as­
sists you in stop-and-go traffic. If a previous
detected vehicle ahead stops, your veh icle will
brake to a stop, within the limits of the sys­
tem .
~ To resume driving with adaptive cruise con­
trol, tap the acce lerator pedal or
~ Pull the lever toward you into position @
¢ page 80, fig. 81. ..,_

82 Adaptive cruise control and braking guard
@ Tips
-If adaptive cruise contro l is active and
your vehicle does not start dr iving as ex­
pected after pulling the lever once, you
can start out aga in by tapp ing the accel­
erator pedal.
- If an obstacle is detected when your ve­
hicle starts dr iv ing, the system w ill
prompt you to take over
c> page 82.
Your vehicle w ill dr ive more slowly when
starting. This may a lso happen in some
situations when there no obstacle is ap­
parent.
Interrupting cruise control
Applies to vehicles: with adaptive cruise control
Requirement: adaptive cruise control must be
switched on.
Overriding cruise control
., To accelerate manually, pull the lever to­
ward you into position @~
page 80, fig. 81
and hold it there. The message ACC override
appears . Or
.. press the accelerator peda l.
.. To resume cruise control, release the lever
or take your foot off the accelerator pedal.
Canceling cruise control while driving
.. Move the lever into position @. The mes­
sage
ACC standby appears. Or
.. press the brake peda l.
.. To resume the stored speed, move the lever
into position @.
Canceling cruise control when stopped
.. Push the lever away from you into position
· @ . The message
ACC standby appears .
.. To resume cruise control, press the brake
pedal and pull the lever toward you into po­
sition @.
A WARNING
Improper use of the adaptive cruise con­
trol can cause collisions, othe r acc idents
and serious personal injuries. -
Never resume t he stored speed if the
speed is too high for prevailing road,
traffic or weather conditions.
Prompt for driver intervention
Applies to vehicles: with adaptive cruise control
Fig. 83 Instrument cluster: requ est for driv er interve n·
tion
In certa in situations, the system will prompt
you to take action . For example, braking by
the adaptive cruise control system is not enough to mainta in enough distance to the
vehicle ahead.
The indicator light
I and the symbol in the
display will warn you about the situation
~ fig. 83. You wi ll also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down.
Changing the speed
Applies to vehicles: with adaptive cruise control
0
f
jJ
0
Fig. 84 Operating lever: changing the speed
.. To increase or reduce the speed in incre­
ments,
tap the lever up or down.
.. To increase or reduce the speed qu ickly,
hold the lever up or down until the red LED ..,.

84 Adapti ve crui se control and bra king guard
@ Tips
- Di sta nce 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.
Audi braking guard
Description
Ap plies to vehicles: with a daptive cruise co ntrol
Fig. 86 Inst rument cluster: app roach wa rning
Aud i braking guard uses radar sensors and a
video camera. It is act ive at speeds above
about 6.2 mph (10 km/h) and also works
within system limits when adaptive cruise contro l is switched off.
On vehicles with adapt ive cruise control and
Aud i side assist (Audi p re sense plus), system
functions also engage when a co llision is im­
minent
¢ page 187.
What c an Audi br aking gu ard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud­
denly or if your own veh icle is trave ling at a
h igh speed and approachi ng a veh icle up
ahead that is moving more slowly . A udi brak­
i ng guard does not react if it ca nnot detect
the sit uat ion .
The system advises you of various situations:
- The
distan ce w arn ing 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 coll is ion . The ind icator
ligh t
I in the disp lay comes on. Take imme- diate action to avoid the collision and in­
crease the distance to the vehicle up ahead
.
- The
appr oach warning is given when a de­
tected vehicle up ahead in your lane is mov­
ing much more slowly that you are or if it
brakes sharp ly. When this warning is given,
it may only be possible to avo id a co llision
by swerving or brak ing sharp ly. The indicator
light
I and the symbol in the display will
warn you about the danger¢
fig. 86. You
w ill also hear an acoustic signal.
If you do not react fast enough or do not react
at all to the situation, Aud i braking guard w ill
intervene by braking and the message
br aking
guard interv ention
w ill appear.
- If a collis ion is imminent, the system will
first provide an
a cute warning by braking
sharply .
- If you do not react to the acute warning, Au­
di braking guard will brake w ith increased
force in severa l stages to reduce the speed
in a poss ible coll is ion. O n veh icles with
adapt ive cr uise con tro l a nd Aud i side assist
(Audi pre sense plus), the system can brake
w it h increas ing fo rce up to max imum dece l­
eration shortly before a sensed collision
¢page 187.
- If
the Audi braking guard senses that you
are not braking hard enough when a colli­
sion is imminent, it can increase the braking
force.
Audi braking guard takes the driver's reaction
time into consideration in order to provide
t imely warnings. The system reaction time de­
creases automat ically in some situations, for
example when it detects acce lerator pedal use
or steering input. The Audi braking guard in ­
tervent io n stops in certa in situations, for ex­
amp le if you p ress the accele ra to r pedal to
pass the vehicle moving a head of you in your
lane.
Which function s can be controlled?
You can switch Aud i brak ing guard and the
distance/approach warning on or off in the
MM I ¢page 85, Settings in the MMI.

Audi side assist Lane Change Assistant
Description
App lies to vehicles: with si de assist
The side assist helps you when changing
lanes .
H AUDI I
Fig. 87 Rear bumper : Pos ition of rada r sen sors (not
v isib le on outs ide)
Fig . 88 S ig n al l ight on the outside m irro r - drive r's side
Side assist uses radar sensors (not visib le on
outside)
c::> fig. 87 to help the driver check
blind spots, and see what is happening in traf­
f ic beh ind the veh icle
c::> page 88, fig. 89 .
Signal lights are built into both outside mir­
rors <=>
fig. 88. The signal light on the left out­
side mirror assists when moving over into the left lane and the signal light on the right out­
side m irror 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 yo u were to change
lanes. This is called the
informati onal stag e
s ignal
c::> page 89. The informational stage
signal is designed so that you notice it only
when yo u are look ing in the outside mirro r.
Aud i side assist 8 7
When you activate the turn signal and side as ­
sist detects a vehicle in a notable location, the
corresponding signal on the outside mirror
c::> fig . 88 (D flashes br iefly and brightly sever­
al times . This is the
aler t stage signal
c::> page 89 .
Activating and deactivating
Applies to vehicles: wit h side assist
Activating
.., Press the button @c::> page 87, fig. 88 . The
ind icator on the button lights up .
Dea ctivating
.., 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
-
- Improper reliance on the side assist sys-
tem can cause collisio ns and serious per­
sonal injury:
- Never rely on ly on s ide assist whe n
changing lanes.
- Always check rear view mir rors to make
sure that it is safe to change lanes.
- Side assist cannot detect all veh icles un­
de r al l conditions- danger of accident!
- Side assist cannot detect vehicles in time
to a le rt you when they approa ch from
behind a t very high speed, or fall drop
back very q uickly.
- The radar sensor's
vision can be red uced
or entire ly blocked by rain, snow, and
heavy spray . This can resu lt in side assis t
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 s ide assist indicates
there are approac hing vehicles, or vehi­
cles in your blind spot, on ly afte r you r ve­
hicle has reach ed a driv ing speed of at
least 19 mph (30 km/h).
~

right of your travel lane, depending on wheth ­
er you driv e in the center of your lane or closer
to the edge .
I f yo u drive in narrow lanes, s ide ass ist's de ­
tection area may a lso include other lanes -es ­
pecia lly if you tend to drive on the edge of
your lane¢
fig. 95. Under these condit ions,
ve hicles can also be detected that are two
lanes away, and side assist then could sw itch
between the informat ional and warn ing stage
sig nals .
When driving in very w ide lanes, vehicles in
the adjacent lane may not be detected be­
cause they are not inside the detection area .
Notes
Messages in instrument cluster display
Applies to vehicles: with side assist
If side assist turns off automatically, the indi­
cator light on the button wi ll go out and you
will see a message in the instrument cl uster
d isplay:
Aud i side a ssist : not availab le. s en sors
blocked
T he side assist sensors are built into the rear
bumper on the left and right (not visible on
the outside) ¢
page 87, fig. 87. To ensure that
you do not adversely affect the way side assist functions, foreign objects (such as stickers o r
b icycle racks) shou ld not be attached to the
a rea on the rear bumper where the sensors
a re loca ted.
If side ass ist func tions a re ad­
versely affected, yo u will see this message in
the instrument cluster display. Remove any­
thing that may be blocking the sensors .
If no vehicle is detected for a longer period of
time while driving, side assis t will a lso switch
off a utomatica lly.
Audi side as sist currently not available
If there is a tempora ry problem (such as the
veh icle's battery charge being low), s ide ass ist
cannot be activated tempo rarily.
Audi side a ssis t 93
Audi side assist: system fault
Have the system checked by an author ized Au­
di dealer or qualified workshop .
Audi side assist: not available when
to wing
T he radar sensor's view is limited when tow ­
ing a trai ler . F or vehicles with a facto ry instal ­
led towing hitch or a trailer hitch that was in­
stalled later according to factory specifica­
tions, side assist is automatically deactivated
a s soon as the electrical connection to the
trailer 's electrical socket is made, and this sta­
tus message appears in the instrument clus ­
ter display . Deactivation cannot be guaran­
teed when using a ret rofitted towing hitch
that was
not installed acco rd ing to facto ry
spe cifica tions.
Safety tips
Applies to vehicles: with side assist
T he side assist detection may be limited when
driving around narrow street corners, on hi lly
streets, and under poor weather conditions.
It is possible that the radar sensors may a lso
detect other objects, s uch as high or stag ­
gered guardrails .
S ide assist does not measure act ual lane
width. The system assumes a fixed lane width.
Detection in the left and right lanes is based
on this ass umed lane width . When driving on
narrow roads or when driving to the left or
right of the center of a travel lane, it is poss i­
ble that vehicles will be detected that are
not
in the lane next to the lane you are using .
A WARNING
-Improper 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
sure that it is safe to change lanes.
- Side assist cannot detect all vehicles un-
der all conditions- danger of accident!
~

96 Audi drive select
Individual -¢ page 96.
Adjusting the Individual mode
A WARNING
Pay attention to traffic when operating Au­
d i drive select to prevent potential risk of
an accident.
You can adjust the vehicle settings to your personal preferences .
.. Se lect : I CARI function button > Set individ­
ual
control button. You can now adjust the
individual systems.
The
Individual driving mode will automatica l­
ly be activated when you have finished config­
uring the settings.
I
Systems
Engine /Transmission
Steering Cornering light*
Belt tensioner*
{1) Tips Comfort
balanced
comfortable
comfortable
-Standard
Your
Individual mode settings are auto­
mat ically stored and assigned to the re­
mote control key being used. The
equipment in your vehicle will determine
which settings you can adjust. The following
table provides an overview of the characteris­
tics of each driving mode.
Auto
ba lanced
balanced
ba lanced
Standard
---~·
---~,
Dynamic
sporty
sporty
sporty
Deployment time
adapted
-

98 Night visi on assis tant
Pedestrian warning
Applies to vehicles: with night vision assistant
Fig. 100 D isplay : pedestrian warn ing
F ig . 101 D is p lay: pedestrian warning w ith a nother dis ­
p lay
I f a pedestrian is detected i n an area in front
of the vehicle that the system considers criti­
cal, the pedestrian is high lighted in red
q fig . 100 and a warning tone sounds. Th is
area is based on the vehicle speed and steer ­
ing angle. The pedestrian warning prompts
you to pay even closer attention to the area in
front of the ve hicle and to watch out for pe­
destrians.
If another display s uch as the tr ip computer
replaces the image from the night vision as­
sistant, the indicator light turns red when
there is a pedestria n warning
I¢ fig. 101.
The pedestr ian war ning I appea rs in the
Head-up Display *.
(D Tips
The pedestrian marking and warn ing tone
can be adjusted in the M MI
r:!) page 99.
General information
Applies to vehicles: with night vision assistant
Fig. 102 Fro nt of th e ve hicle: nig ht v is ion assistant
camera
T he following sit uat io ns may affect the fu nc­
t io n of the n igh t vision assistant sys tem:
- poor visibility such as snow, rain, fog or
heavy road spray
- dirty le ns on the n ight vis ion assistant cam -
era
Make sure the night vision assistant camera
¢ fig . 102 is not covered by stickers, depos its
or any other obstructions because that can
prevent the camera from working properly.
For information on cleaning the lens, refe r to
q page
206.
Pedestrian detection depends on the d iffer ­
ence in temperature between the person and
t h e background. Pedestr ians may not be de­
tected if the temperature diffe ren ce is too
small . Th e pedestrian highl ighting feature is
deactivated at tempe ratures above 77 ° F (25
°C) and when it is light outs ide.
A WARNING
Night vision assistant has limits a nd can­
not always detect pedestr ians. Always pay
close attention to traffic a nd the area
a round your vehicle even when night vision
assistant is sw itched on .
- Night vision assistant can only warn
about people located within the visual
range of the infra red camera. The visual
range corresponds to the image in the in­
s trument clus ter di splay .
- Night vision assistant may not detect
-
peop le and h ighlight them if .,.

-they are not in an upright position, for
examp le if they are s itting, crouching
or lying down and/or
- if the outline in the display is incom­
p lete or interrupted, for example be­
cause the person is partially hidden by
a parked veh icle .
(D Tips
-Pedestrian detection and the pedestrian
warming are lim ited to objects that are
detected as pedestr ians. The system
does not detect animals . Even though
the shape and warmth radiated by each
object det ected is evaluated, the system
does have lim itations and it can give in­
correct warnings.
- Fo r techn ical reasons , the image pauses
in split second interva ls.
Switching on and off
Appl ies to vehicles: with night vision assistant
Fig . 103 Area a round the light switch: n ight v ision as ­
sistant button
.. Switch the ignition on and turn the light
switch to the
AUTO position or io.
.. To switch night vision assistant on, press
the
EJ button Q fig. 103. The image from
the night vision camera appears in the in­
strument cluster d isplay.
.. Press the button
EJ again to switch night vi ­
s ion assistant off .
Night vision assistant 99
Settings in the MMI
Applies to vehicles: with night vision assistant
Fig. 104 Display : exa mple of pedest rian detectio n and
warn ing to n e switched off
.. Select: I CAR I function button > Car systems
cont rol button > Driver assist > Night vision
assist.
Highlight pedestrians -
You can switch pedes­
trian detect io n
on and off . If you switch pe­
destrian detection off, the pedestrian warning
tone also switches off . The symbols
I) and r2J
appear in the upper right area of the instru­
ment cluster disp lay ¢
fig. 104.
Warning tone -You can switch the tone for
the pedestrian warning
on and off. When the
warning tone is sw itched off, a yellow symbol
for the deactivated warning tone with a line
through it appears in the upper right of the in­
strument cluster display¢
fig. 104.
Contrast -When the night vision assistant is
switched on and the image is visib le in the in­
strument cluster display, you can adjust the
contrast in the image from
Min to Max .
Driver messages
Applies to vehicles: with night vision assistant
Night vision assistant: system malfunction!
The system cannot work properly and is
switched off. See your authorized Audi dealer
for assistance.
Night vision assistant: not available
The system cannot detect properly under cur­
rent conditions and is switched off temporari-
~ ~

Automatic Transmission
multitronic ®
Introduction
Appl ies to vehicles: with multitr oni c
Your veh icle is equipped with an electronically
controlled,
continuously variable transmis­
sion
(multitronic ®). In contrast to convention ­
al automatic transmi ssions using shifting op­
erations, the transmission ratio in the contin­
uously variab le transmission is changed con ­
tinuously. This optimizes the comfort level
and conserves fuel.
The gear ratio in the transmission is selected
(upshift and downshift) completely automati­
cally as a function of the defined driving pro­
grams.
If desired, the driver can also select the gears
manually (tiptronic mode).
Instead of the torque converter in convention­
al automatic transmissions, your multitronic ®
transmission uses a multidisk clutch for pow­
er transmission . Therefore, the "creep behav­
ior" of the veh icle dur ing idling when tempo­
rarily stopped in selecto r lever pos it ion 0/S or
R is less pronounced.
Driving the automatic transmission
A ppl ies to vehicles: with multitr onic
Fig . 105 Shift gate on the cente r console: se lecto r lev­
er wi th release button
Starting the engine
• The selector leve r must be in P or N. Automatic Transmission 101
Starting off
•
Press and hold the brake pedal.
• Press and hold the re lease button in these­
lector lever handle and move the selector
lever from
P or N to D/S and release the but­
ton
c:> _&. .
.,. Wait briefly until the transmission has shift­
ed (you will feel a slight movement) .
.,. Remove your foot from the brake pedal and
accelerate .
Rocking back and forth to become
unstuck
.,. Shift only between D/S and R when the ve ­
hicle is at a full stop and the engine is run­
ni ng at idle speed .
Stopping
.,. Press and hold the brake pedal until the ve­
hicle has come to a complete stop .
• Keep the brake pedal depressed so that the
veh icle cannot roll forward or backward
while it is idling
c:> _&. .
• Once stopped, do not depress the acce le ra­
tor peda l to rev up the engine
c:> _&. .
Parking
.,. Press and hold the brake pedal until the ve­
hicle has come to a complete stop .
• Set the park ing brake firmly
c:> page 7 4,
Parking .
• Press and hold the release button in these ­
lector lever handle, move the se lector lever
into
P and then let go of the release button
c:> _&..
The selector lever must be in P or N. If one of
the driving positions is engaged a safety
switch will prevent the eng ine from being
started . See also co
page 70.
Before you move the selector lever from the
P
position, you must always app ly the brake
pedal before and while depressing the button
in the handle of the selector lever.
A WARNING
-- Unintended vehicle movement can cause
serious injury.

104 Automatic Tran sm iss ion
At speeds above about 3 mph (5 km/h) the
Automatic Shift Lock is automatically deacti­
vated in the
N position.
I nte rlock butt on
The lock button on the selector lever prevents
the lever from being acc identally shifted into
certain positions. Pressing this button deacti­
vates the se lector lever lock. Depending on
the direction of the shift, the se lector lever
locks at different positions. The positions are
h ighlighted in the illustration
c:> fig. 107.
Kick-down
App lies to vehicles: with multitronic
The kick-down feature allows the vehicle to
generate maximum acceleration.
When you depress the accelerator pedal be­
yond the resistance point, the transmission downshifts into a lower gear ratio depending
on the vehicle speed and engine speed. As long as the accelerator pedal is depressed, the
engine speed is automat ically regulated for
maximum acceleration.
A WARNING
Be ca reful when using the kick-down fea­
ture on slippe ry roads. Rapid acce lerat ion
may cause the vehicle to skid.
Dynamic shift program (DSP)
Applies to vehicles: with multitr on ic
The automatic transmission is electronically
controlled.
The transmission is self adapting and will au­
tomat icall y
select the best shift program su it­
ed to the driving condit ions and d riving s tyle.
The transmission will se lect one of the
econo­
my
programs when you drive at a steady
speed or a gradually chang ing speed without
heavy acceleration . T h is ach ieves optimum
f u e l efficiency, with early upshifting and de­
layed downshifting .
The transmission will a utomat ica lly select the
s porty shift prog rams whe n you drive at high- er speeds, or with heavy acceleration and fre­
quently changing speeds. Upshifts are delayed
to make full use of engine power . Downshift­
ing takes place at higher engine speeds than
in the economy programs.
The selection of the most suitable s hift pro ­
gram is a continuous, automatic process. The
driver can a lso make the transm iss ion sw itch
to a sporty program by
qu ick ly pressing down
the gas pedal.
This causes the transm ission to shift down to
a lower gear to ach ieve rapid acce lerat ion, e.g.
for quickly passing another vehicle. You do not need to press the gas pedal into the kick-down
range. After the transm ission has upshifted,
the or iginal program is selected according to
you r dr iv ing style .
An additional sh ift program allows the auto ­
matic transmission to select the proper gea r
for uphill and downh ill grad ients.
This keeps the transm ission from shifting up
and down unnecessarily on hills. The trans ­
mission will sh ift down to a lower gear when
the driver presses the brake pedal on a down­
hill g radient. This ma kes use of the braking ef­
fect of t he engine w ithou t the need to s hift
down man ually .