2014 AUDI S6 brakes

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.
~

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 ..,.

108 Automatic Transmission
N - N eutr al
The transmission is in neutral in this position.
Shift to this position for stand ing with the
brakes applied
q .&. in Driving the automatic
transmission on page 11 O.
When the ve hicle is stationary o r at speeds
be low 1 mph (2 km/h), you must always apply
the footbrake befo re and while moving the
l ever out of N .
DIS -Normal position for driving forward
In the D/S position, the transmiss io n can be
operated e ither in the normal mode Dor i n
the sport mode S. To select the sport mode S,
pu ll the se lector lever back briefly . Pulling the
lever back aga in will select the normal mode
D. The instrument cluster display shows the
selected driving mode.
In the normal mode D, the transmission a uto ­
mat ica lly selects the suitab le gea r ratio.
It de­
pends on engine load, veh icle speed and driv­
ing style.
Select the sport mode S for sporty driving .
The vehicle makes fu ll u se of the engine's
power. Shifting may become noticeable when
accelerating.
When the ve hicle is stationary o r at speeds
be low 1 mph (2 km/h), you must always apply
the foot brake before and while moving the lever to D/S out of N .
A WARNING
Read and follow all WARNINGS q .&. in
Driving the automatic transmission on
page 110.
(D Note
-
Coast ing downh ill with the transmission in
N and the e ngine not r unning w ill result in
damage to the automatic transm iss io n
and possib ly the catalyt ic converter.
@ Tips
- Audi drive select : you ca n adj ust the
sporty s hift c haracte ristics in th e
Dy-
namic driving mode.Swi ll appea r in the
instrument cluster display instead of D.
-If you a cc iden tally selec t N whi le driving,
take your foot off the accelerato r pedal
immediately and wa it for the engine to
slow down to idle before select ing D/S.
- If there is a power fai lure, the selector
lever w ill not move out of the P position.
The emergency release can be used if
this happens
c::>page 113.
Automatic Shift Lock (ASL)
Applies to vehicles: with multitronic/5 tronic/tiptron ic
The Automatic Shift Lock safeguards you
against accidentally shifting into a forward or the reverse gear and causing the vehicle to
move unintentionally.
' ) ( )
Fig . 113 Shi ft gate: selector leve r lock pos it ions a nd
re lease button high lig h ted
The selector lever lock is re leased as follows:
.,. Tur n the ignition on .
.,. Step on the brake pedal.
At the same time
press and hold the re lease button on the
side of the gear selector knob
c:> fig . 113
with your thumb until you have moved the
selector lever to the desired posit ion.
Automatic selector leve r lo ck
The selector lever is locked in the P and N po­
s itions when the ignit ion is turned on . Yo u
must press the brake pedal and the re lease
button to select another position . As a re­
minder to the driver, the following warni ng
appea rs in the instrument clus ter display
whe n the selector is in P and N:
When stationary apply brake peda l while se-
lecting gear ..,_

110 Automatic Tran sm iss ion
multitronic transmission : Your vehicle is
equipped with
hill hold assist allowing you to
start while on an incline. The system is acti­
vated when the brake pedal is pressed down
and held
f o r a few s econds . The brake pres­
sure will hold for
a moment after the brake
pedal loosens to prevent the veh icle from roll­
ing backwards whi le starting up .
A WARNING
- The veh icle can also roll when the engine
is stopped.
- Unintended veh icle movement can cause
serious injury .
- Never leave your vehicle with the eng ine
running wh ile in gea r. If you must leave
yo ur vehicle when the engine is running,
act ivate the park ing brake and move the
selector lever to P .
- Power is st ill transmitted to the whee ls
when the engine is running at idle . To
prevent the vehicle from "creeping", you
must keep your foot on the brake when
the engine is running and the selector
lever is in D/S or R or "tiptronic" mode is
selected.
- Do not press the accelerator pedal when
changing the selector lever pos ition
wh ile the vehicle is stat io nary and the
engine is running .
- Never shift into R or P wh ile driving .
- Before driv ing down a steep slope, re-
duce your speed and shift into a lower
gear with "tiptronic" .
- Do not ride the brakes or press the brake
pedal too often or too long when dr iving
down a hill. Constant braking causes the
brakes to overheat and substant ially re­
duces b raking performance, inc reases
braking distance or causes comp lete fail­
ure of the brake system.
- T o prevent the veh icle from rolling back
when stoppi ng on incl ines, always hold it
in place with the brake peda l or parking
brake.
- Never hold the veh icle on an incl ine with
a slipping clutch. The clutch opens auto ­
matically when it becomes too hot from the overload. An indicato
r lamp
[O] illu­
minates and a driver message appears
¢ page 112 when the clutch is overload­
ed.
- If the engine must remain running, never
have any driving posit io n engaged when
checking under the hood . Make sure the
selector lever has securely engaged and is locked in P with the park ing brake set
¢ page 224. O therwise, any increase in
engine speed m ay se t the vehicle in mo­
tion, even with the parking brake ap­ plied .
(D Note
-S tronic- and tiptronic transmission :
When stopping on an incl ine , do not try
to hold the vehicle in place by pressing
the acce lerator pedal while a driving gear
is se lected. This can cause the transmis­
sion to overheat and can damage it. Acti­
vate the parking brake or press the brake
peda l to prevent the vehicle from roll ing.
- S tronic- and tiptronic transmission : A l­
lowing the vehicle to ro ll when the en­
gine is stopped and the selector lever is
in N will damage the transmission be­
cause it is not l ubricated unde r those cir­
cumstances.
{!) Tips
For safety reasons, the parking brake is re­
l eased automatically only when the d riv­
er's safety belt is engaged in the buckle.
Hill descent control
Applies to vehicles: with multitro nic/5 tronic/t iptronic
The hill descent control system assists the
driver when driving down declines .
Hill descent control is activated when these­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is sui table fo r the incline. H ill de­
scent contro l tries to ma inta in the speed ach-
ieved at the time of b raking, with in physica l .,.

and technical limitations. If may still be necessary to adjust the speed with the brakes.
H ill descent control switches off once the de­
cline levels out or you press the accelerator
pedal.
On vehicles w ith the c ruise control system*
c::> page 82, hill descent con trol is also activat­
ed when the speed is set.
A WARNING
-
Hil l descent control cannot overcome
physical limitations, so it may not be able
to maintain a constant speed under all
conditions. Always be ready to app ly the
brakes.
Manual shift program
App lies to vehicles: with multitron ic/S tronic/t iptronic
Using the manual shift program you can
manually select gears.
Fig . 115 Center co nsole: sh ift ing the gears manually
Fig . 116 Steering wheel: S hift b uttons*
Gear selection with selector lever
The tiptron ic mode can be selected either with
the vehicle stationary or on the move .
.,. Push the selector lever to the right from D/
5. An M appears in the instrument cluster
Automatic Transmission 111
display as soon as the transmission has
shifted.
.,. To upshift, push the selector lever forward
to the plus position
0 c::> fig. 115 .
.,. To downshift, push the lever to the minus
position
0 .
Gear selection with paddle levers*
The shift buttons are activated when the se­
lector lever is in D/S or the tiptronic manual
shift program.
.,. To upshift, touch the button on the right
0
c::>fig. 116.
.,. To downshift, touch the button on the left
0 .
.,. If you do not press a shift button within a
short time while in the D/S posit ion, the
transmission will return to automatic mode.
To keep shifting using the shift buttons,
move the selector lever to the r ight out of
the D/S position.
The transm iss ion automatically sh ifts up or
down before cr itical engine speed is reached.
The transmission only allows manual shifting
when the engine speed is with in the permit­
ted range .
(D Tips
-When you shift into the next lower gear,
the transmission will downshift only
when the re is no possibility of over-rev­
ving the engine.
- When the kick-down comes on, the
transmission will shift down to a lower
gear, depending on vehicle and engine
speeds.
- T iptron ic is inoperative when the trans­
mission is in the fail-safe mode.

ESC includes and/or works together with the
anti-lock brake system (ABS) , brake assist sys ­
tem, anti -slip regulation (ASR) , e lectronic dif­
ferential lock ( EDL) and e lectronic interax le
d ifferential lock* . ESC is swi tched on all the
time. In certain situat ions when you need less
traction , you can switch off ASR by pressing
the button
[ru <::;> page 196, fig . 178 . Be sure
to switch ASR on again when you no longer
n eed less t raction.
Anti-lock br aking s ystem (ABS)
ABS prevents the wheels from locking up
when braking . The veh icle can still be steered
even during hard braking . Apply steady pres­
sure to the brake pedal. Do not pump the ped ­
a l. A puls ing in the bra ke peda l indicates that
the system is he lping you to brake the vehicle.
Brake assist system
The brake assist system can decrease brak ing
d istance.
It increases braking power when the
driver p resses the brake pedal quic kly in emer­
gency situations. You must press and ho ld the
b rake peda l until the situation is over . In
vehicles with adaptive cruise control* , the
brake assist system is more sensitive if the
d istance detected to the vehicle ahead is too
small.
Anti -slip regulation (ASR )
ASR reduces engine power when the d rive
wheels begin to spin and adapts the force to
the road condit ions. This makes it eas ie r to
s tart, accelerate and drive up hills.
El ectronic diffe rential lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive powe r to the other drive
wheel or whee ls if the vehicle is equipped with
all-whee l drive*. This function is available up
t o about 75 mph (120 km/h).
I n extreme cases , ED L automatica lly switches
off to help keep the brake on the braked whee l
from overheating.
E DL wi ll switch on again au­
tomatically when conditions have returned to normal.
Int ellig ent technolog y 195
Electronic intera xle differential l ock */
se le ctive wheel torque cont rol *
The electronic interaxle differential lock (front
whee l drive) or the se lective whee l torque
cont rol (all-wheel dr ive) operates when dr iv­
ing through curves . The front wheel on the in­
s ide of the curve or both wheels on the inside
of the curve are braked selectively as needed .
T his min imizes sliding in the front wheels and
allows for more p recise d riving through
curves . T he applicable system may no t acti­
vate when driv ing in wet or snowy conditions.
A WARNING
-- ESC, ABS, ASR, EDL and the electronic in­
teraxle diffe rential lock function* cannot
overcome the laws of physics. This is es­
pecially important on slippery or wet
roads . If the systems begin acting to sta­
bilize your veh icle, you should immedi­
ately change yo ur speed to match the
road and traffic cond itions. Do not let
the increased safety provided by these
systems tempt you to take risks. Do ing
so will increase the r isk o f a loss of vehi ­
cle control, collision and serious personal inju ries.
-Always adapt your speed to road, traffic and weather conditions . The risk of los­
ing control of the vehicle increases when
driving too fast, espec ially through
curves and on slippery or wet roads, and
when dr iv ing too close to vehicles up
ahead . ESC, ABS, the brake assist sys­
tem, EDL, ASR and the e lectronic inte r­
axle d iffe ren tial lock function* cannot
preven t coll is ions.
- Always accelerate with spec ial care on
even, smooth surfaces su ch as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that cannot al­
ways he lp to red uce the risk of loss of ve-
hicle control. .,.
•
•

to have your brake pads inspected can result
in reduced brake performance.
On steep slopes, you should use the brak ing
effect of the engine. This way, yo u prevent un­
necessary wea r on the brake system . If you
must use your brakes, do not hold the brakes
down continuously. Pump the brakes at inter ­
vals.
Moi stu re or r oad salt
Under certain conditions, for examp le, when
driving through water or very heavy rain, or
even after washing your vehicle , the braking
effect can be reduced due to moisture (or in
free zing conditions ice) on the brake pads. A
f ew care ful brake applications should dry off
the brake pads or remove any ice coatings.
When you a re d riving at higher speeds with
the w indshield wipers on, the brake pads will
briefly touch the brake d iscs in regular inter­
vals so as to improve reaction t ime when brak­
ing on wet surfaces . You the driver will not no­
tice anything .
The effectiveness of the brakes can be reduced
when the vehicle is dr iven on a salt -covered
road and the brakes are not used . Here too ,
you should clean off accumu lated salt coat ing
from brake discs and pads with a few carefu l
appl ications o f the brake ¢,&. .
Cor ro sion
There may be a tendency for dirt to build up
on the brake pads and corrosion to form on
the discs if the car is not dr iven regularly or
on ly for short trips with l ittle use of the
brakes .
If the brakes are not used frequently , or if cor­
rosion has fo rmed on the discs, it is advisable
to clean off the pads and discs by brak ing
firm ly a few times from a moderately h igh
speed ¢.&. .
F a ults in the brake system
If you should notice a
sudden increase in
b rake pedal travel, then one of the two bra ke
circu its may have failed¢,&. .
Int ellig ent technolog y 197
Low br ake fluid lev el
Malfunctions can occu r in the brake system if
the b rake fluid level is too low. The brake fluid
level is monitored electronica lly.
Brake booster
T he brake booster wo rks with vacuum pres­
s ur e which is created only when the engine is
runn ing ¢.&. .
Brake lining we ar statu s
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
th rough the open ings in the wheel. If neces­
sary, the wheel may be removed for th is in­
spection ¢
page 263, Changing a wheel.
A WARNING
-=
-You should perform braking maneuvers
for the purpose of cleaning the brake
system only if road conditions permit.
Other road users must not be put at risk -
you may cause an accident!
- Before descend ing a steep grade, reduce
speed and sh ift transmission into a lower
gear or lower dr iving range. Do not ride
the brakes or hold the pedal down too
long or too often . Th is could cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by rest ing your
foot on the pedal when you do not intend
to b rake. This may cause the brakes to
overheat, premature wear and increased
stopping distance.
- Unde r ce rtain cl imatic and operat ing
conditions such as passing thro ugh wa ­
ter, driving in heavy rain or after washing
the vehicle, the effectiveness of the brakes can be reduced . In winter, ice can
accumulate on the brake pads, lin ings,
discs and drums . Carefully app ly brakes
for a test . Brakes will dry and ice coat­
ings w ill be cleaned off after a few care­
fu l brake applicat ions.
- Driving for an extended period of time on
salt-covered roads without using your brakes can a lso affect bra king efficiency. ..,.
•
•