2012 AUDI A6 brake

Adaptive cruise control and braking guard 83
@ reaches the desired speed ¢ page 80,
fig . 82.
Setting the distance and driving
program
App lies to vehicles: with adaptive cruise control
Fig. 85 Opera tin g le ve r: se tt ing th e distanc e
The distance at wh ich the adaptive cruise con ­
trol fo llows a vehicle in front is determined by
time intervals. A time interval to a vehicle in
front is estab lished and maintained. This pro­
duces a speed-dependent interval. The higher
the speed, the greater the safety interval in
yards (meters) ¢&, .
Setting the distance
.. Tap the switch to display the current set dis­
tance¢
fig. 85 .
.. To increase or reduce the distance by incre­
ments , tap the switch again to the left or
right . The distance between the two vehicles
will change in the instrument cluster dis­
play.
Setting the driving program
.. Select in the MMI: !CAR I function button>
Car Systems control button > Driver assist >
adaptive cruise control > Driving program .
Setting the distance
When approaching a moving vehicle up ahead,
the adaptive cruise control system automati­
cally brakes to match that object's speed and
then maintains the stored distance . When this
happens , the actual distance may briefly be
less than the stored distance. If the vehicle
ahead accelerates, adaptive cruise control will
also accelerate up to the stored speed. The
higher the speed , the greater the d istance
in yards (meters) ¢&,. .The
Distance 3 setting
is recommended.
The distances provided 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 .
c=::,_c=::, ___ 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 .
c=::, __ c=::, __ 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.
c=::, ___ c=::,_ 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.
c=::, ____ c=::, 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 .
Setting the driving program
You can select Dynamic , Standard or Comfort
driving programs. Depending on the selected
driving program and distance, driving behav ­
ior when accelerating wi ll vary from dynamic
to comfortable.
A WARNING
Following other vehicles too closely in­
creases the risk of collis ions and ser ious
personal injury .
- Setting short distances to the traffic
ahead reduces the time and distance
availab le 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 distance for the traffic, road and
weather conditions.

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.

86 Adaptive cruise control and braking guard
The road exceeds the maximum possible an­
g le for proper adaptive cruise contro l opera­
tion. Adaptive cruise control is sw itched off .
ACC: only selector lever positions D, S or M
available
Select the D/S or M selector lever position.
ACC: unavailable at this time. Parking brake
set
The adaptive cruise control system switches
off automatically if the parking brake is set .
ACC: unavailable at this time. ESP interven­
tion
This message appears if the Electronic Stabili­
zation Program (E SP) is wo rking to he lp stabi­
lize the vehicle. In this case, adaptive cruise
control switches off automatically.
ACC : Please take over
This message appears when adapt ive cruise
control cannot set the parking brake. Press
the brake pedal to prevent the vehicle from
r olling .
•••
Three white dots appear if a setting cannot be
selected with the operat ing lever . For exam­
ple, this happens if adaptive cru ise control
cannot resume driving in stop-and-go traffic
because one of the conditions required for
ACC to wor k is not prese nt.
Door open
The adaptive cruise control system cannot
switch on when a door is open.
Stationary object ahead
This message appears if you wou ld like to
switch adaptive cruise control on and there is
a stationary vehicle or obstacle directly ahead
of your vehicle.

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.

102 Autom atic Tran smi ssi on
-When the selector lever is in a driving
position, the veh icle may creep, even at
id le speed. Therefore do not release
the park ing brake or foot brake until
you are ready to move, because power
is transmitted to the wheels as soon as
a driving posit ion is engaged.
- Do not accelerate while selecting a
driving position. At this time the en­
g ine must be at idle speed so that un­
d ue stress is no t placed on the clutches
in the t ransmission.
- Remembe r: Even when stopped briefly
with the automatic transmission in D/S
or R, engine power is being transmit ­
ted to the whee ls. Yo ur vehicle could
"creep" forward or backward . When
stopped, keep the brake peda l fully de­
pressed and use the parking brake if
necessary to keep the vehicle from roll­
ing .
-If the selector lever is unintentionally
moved into N wh ile you are driving, take
yo ur foot off the accele rator pedal and
wa it for the engine to return to idle
speed befo re selec ting a drivi ng position.
- Never shift into R or P when the veh icle is
in mo tion.
- Never get out of the dr iver's seat when
the engine is runn ing.
- If you must get out of the vehicle, move
the se lector lever securely into the P po­
si ti on a nd apply the park ing brake fi rm ly.
- If the eng ine must remain running, never
have any driv ing pos ition engaged when
chec king under the hood. Make sure the
selector lever has securely engaged and
is locked in P with the parking brake
firmly set¢
page 214, Engine comport­
ment .
Otherwise, any increase in engine
speed may set the vehicle in mot ion,
even with the parking brake applied.
Selector lever positions
Applies to vehicles: wit h mult itronic
This section describes the selector lever posi­
tions and driving ranges.
F ig . 106 Display in th e inst rument cluster: se lector
l ever positio n
The selector lever position engaged appears
next to the selector lever as well as in the in­
strument cluster d isplay.
P - Par k
In this se lector lever position the transm is­
sion is mechanically locked . Engage
P only
when the vehicle is
completely stopped¢.&
in Driving the automatic transmission on
page 101 .
To shift in or out of posit ion P , you must first
press and hold the brake pedal and then press
the re lease button in the selector lever handle
whi le moving the selector lever to o r from
P .
You can shift out of th is position only with the
ignition on.
You must release the parking lock manually before towing the vehicle ¢
page 106.
R - Reverse
Se lect R only when the vehicle is at a full stop
and the engine is running at idle speed¢.& in
Driving the automatic transmission on
page 101.
Before you move the selector lever to R , press
both the button in the hand le of the se lector
lever
and the brake pedal at the same t ime.
When the ignition is on, the backup lights i llu ­
minate when the selector lever is moved into
R . 1111-

N -N eutr al
The transmission is in neutra l in this position .
Shift to this posit ion for standing with the
brakes applied
¢ &. in Driving the automatic
transmission on page 101.
When the veh icle is stationary or at speeds
be low 3 mph (5 km/h) , you must always apply
the footbrake before and while moving the
lever out of
N.
D /S -Normal position for dr iving forward
I n the D /S position, the transmission can be
operated e ither in the normal D mode or in
the S sport mode. To select the 5 sport mode,
pu ll the se lector lever back briefly . Pulling the
l ever back again will select the normal D
mode. The instrument cluster display shows
the selected driving mode.
In the
no rmal mode D , the transmission auto ­
matica lly selects the best gear ratio. It de­
pends on engine load, veh icle speed and the
dynamic control program (DRP).
Select the
s port mode S for sporty driving .
The vehicle makes full use of the engine's
power. S hifting is more noticeable when accel­
erating.
When the veh icle is stationary or at speeds
be low 3 mph (5 km/h), you must always apply
the foot brake before and while moving the lever to
D /S out of N .
In certain circumstances it may be advanta­
geous to temporarily switch to the manual
shift program to manually select gear ratios
to match specif ic driving conditions
¢ page 105.
A WARNING
Read and follow alt WARNI NGS ¢ A in
Driving the automatic transmission on
page 101.
(D Note
-
Coast ing downh ill with the transmission in
N and the engine not runn ing will result in
Automatic Tra nsmi ssi on 10 3
damage to the automatic transmission
and possib ly the cata lytic converter.
Automatic Shift Lock (ASL)
Applies to veh icles: w ith mult itronic
The Automatic Shift Lock safeguards you
against accidentally shifting into a forward or
the reverse gear and causing the vehicle to
move unintentionally.
0, N 0 0
0
a1i
) ( )
Fi g. 107 Shi ft ga te: selector leve r lock pos it ions and
i n te rlock bu tton highligh ted
The selector lever lock is re leased as follows:
.. Tu rn the igni tion on.
.. Step on the brake pedal.
At the same time
press and hold the inte rlock bu tton on the
side of the gear selector knob
Q fig. 107
with your thumb until yo u have moved the
selector lever to the desired posit ion .
Automatic selector leve r lock
The selector lever is locked in the P and N po­
s itions when the ig nition is tu rned on. To
move t he lever from these positions the driver
must depress the brake peda l. As a reminder
to the driver, the following warning appears in
the instrument cluster display when the selec­
tor is in
P and N :
When stationar y apply footbrake while se­
lecting gear
A time delay element p reven ts the selector
lever from locking when it is moved through
the
N position (going from R to 0 /5 ). The
locking element wi ll lock the se lector lever if
the lever is left in N (Neutral) for more than approximately 1 second, w ithout the brake
pedal being pressed .

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 .

106 Automatic Transmission
Of course, you can continue to use the manual
shift program with the selector lever on the
center console.
Transmission malfunction
Applies to vehicles: with multitron ic
[O] Transmission: please press the brake ped·
al and select the position again
Press the brake pedal and se lect the desired
selector lever position again . You can then
continue dr iving .
[O] Transmission hot: please modify driving
style
The transmission temperature has increased
sig nifi cantly due to the sporty driving manner.
Drive in a less spo rty manner until the tem­
perature returns to the normal range and the
indicator light switches of.
[O] Transmission malfunction: You can con­
tinue driving
There is a sys tem ma lf unctio n in the transmis­
sion . You may continue driving. Drive to your
authorized Audi dealer or qualified repair fa­
cility soon to have the malfunction corrected .
[O] Transmission malfunction: Limited driv­
ing functionality
There is a system malfunction in the transmis­
sion . The transmission is switch ing to emer­
gency mode. This mode only shifts into cer­
tain gea rs or will no longer shift at all. The en­
gine may stall. Drive to your authorized Audi
dealer or qualified repair facility immediately
to have the ma lfunction corrected.
[O] Transmission malfunction: Stop and shift
to P
Do not cont inue driving. Select the P se lector
l eve r position and see yo ur authorized Aud i
dealer or qualified repa ir facility for assis ­
tance.
(D Note
If the transmission switches to emergency
mode, you should take the vehicle to an a
uthor ized Audi dea le rs hip as soon as pos ­
sible to have the condition corrected .
Emergency release of the selector lever
Applies to vehicles: w ith multitronic
If the vehicle's power supply fails, the selec­
tor lever con be released in on emergency .
Fig. 111 Emerge ncy release fo r selecto r lever
.,. To reach the emergency release mechanism,
remove the ashtray insert* .
.,. Loosen and remove the small cap in the
ashtray mount ¢
fig. 111 .
.,. You now have access to a bolt. Using a
screwdriver or similar, press the bolt down
and hold it down.
.,. Now press the interlock and move the se lec-
tor lever to the
N position.
T he selector lever can only be moved from the
P position if the ignition is turned on . If the
vehicle has to be pushed or towed if the power
supply fails (e .g. battery is discharged), the
se lector lever must first be moved to the
N
pos ition using the emergency locking device.
tiptronic ®
Introduction
Applies to veh icles : w ith tiptronic
Your vehicle is equipped with an electronically
controlled automatic transmission. Upshifting
and downsh ifting takes place
automatically .
The transmission is also equipped with t ip­
tronic ®. It allows the driver to shift gears
manually if desired ~ page 110.