2015 AUDI A7 brake

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Audi adaptive cruise control and braking guard 91
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 88, fig . 94 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
c::> page 102 .
(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. 98 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 . and the symbol in the
display will warn you about the situation
c::> fig. 98. You wi ll also hear an acoustic signal.
- Press the brake pedal to slow your vehicle
down.

92 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
Applies to vehicles: with Audi adaptive cruise control
Fig. 99 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. in the display comes on.
- The
approach warning is given when a de­
tected vehicle 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. and indicator in the display will
warn you about the danger
c::> fig. 99. You
will also hear an acoustic signa l.
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 guard can brake wit h increasing
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
c::> page 192.
Which functions can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the MMI
c::> page 93, 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 ..,.

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'SI: ,...., \!) 1.1"1 ,...., 1.1"1 ,....,
Audi adaptive cru ise control and brakin g guar d 93
stopped vehicle or stationary obstacle
(end of a traff ic jam or veh icle that has
broken down in traffic).
- Always remember that the radar sensor
for the braking guard works only within
defined detection and range limits that
may prevent the proper detection of oth ­
er vehicles .
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray . Moving vehicles up ahead may not
be promptly dete cted or may not be de­
tected at all.
- Reflective surfaces in cl ud ing crash barr i­
ers or tunnel ent rances may impai r the
f unc tion of the radar sensor.
(D Tips
- You can ca nce l the braking w ith increas­
i ng force that is initiated by the system
by b raking yo urself, by accelerating no­
tice ably or by swerving.
- Bra king guard error messages
¢ page 93.
- Keep in m ind that braking guard can
brake unexpec tedly . Always secure a ny
c ar go or objec ts th at you are transpor t­
i ng to reduce the risk of damage o r in­
ju ry.
Settings in the MMI
App lies to vehicles: with Audi adaptive cruise co ntrol
... Se lect: I CAR I function button > (Car )* sy s­
tems
contro l button > Dri ve r assist > Audi
braking guard .
System -
Switch braking g uard On and Off .
When you sw itch the ignition on, the message
Audi b raking guard off appears if the system
is switched off.
Early warning -The d istance and approach
warn ings in the disp lay can be switched
On /
Off .
@ Tips
- Your settings are automatica lly stored
and ass igned to the remote control key being used at the time the settings
are
made .
-If you res trict the E SC, the braking gua rd
also sw itches itself off¢
page 197 .
-Swi tch braking guard off when you a re
loading the vehicle onto a veh icle ca rrier,
t rain, ship o r other type of t ransporta­
t ion . This can prevent undesired warn­
ings from the braking guard system.
Messages
App lies to vehicles: wi th Audi ada ptive c ruise con tro l
Braking guard : off
T his dr iver message appears if the system is
turned off via the info tainment . Othe rwise , if
the system is turned off, the information ap ­
pears every time shortly after the start of the
trip.
T he driver message a lso appears if the system
is not ava ilable d ue to a malfunct ion or if the
ESC is not switched on¢
page 197 . If this is
the case, the system w ill not prov ide warnings
a bout a poss ible collision.
Braking guard : activated
T h is dr iver message appears if sharp b rake
pressure was applie d due to an acu te warning.
ACC: Unavailable!
ACC and Audi braking guard: not a vailable
The system cannot detect mov ing vehicles up
ahead correctly and is switched off . The sen­
sors have been displaced or are not working proper ly. The Audi pre sense functions may al­
so be affected . Drive to your authorized Aud i
dealer or author ized Audi serv ice facility im­
med iate ly to have the malfunction cor rected .
ACC: currently unavailable. No senso r vis ion
ACC and b rak ing guide: cu rrentl y una va ila­
ble . No sensor visio n
This mess age appears if the senso r view is ob­
structed, for examp le by leaves, snow, heavy
spray or dirt. Clean the sensors
i=:> page 86,
rg .89 . ~

94 Audi adaptive cruise control and bra king guard
ACC : Currently unavailable . Gradient too
steep
T he road ex ceeds the maxim um poss ible an­
g le for prope r adaptive cruise co ntr ol opera ­
tion . Adaptive cruise control is sw itched off .
ACC: Only available in D, Sor M
Select the D/S or M selector lever position .
ACC: currently unavailable. Parking brake
applied
T he adaptive c ruise co ntro l system swi tc hes
off a utomat ica lly if t he pa rking brake is set.
ACC : Currently unavailable . Stability control
(ESC) input .
This message appea rs if the Elect ron ic Stabili­
z at ion Con trol (ES C) is wo rking to help stabi­
l iz e the vehicle. In this case, a dap tive cru ise
con tro l sw itches o ff au tom atic ally .
ACC off: Manual control!
This message appears whe n adapt ive cr uise
control can not set the par king b rake. Press
the brake peda l to prevent the vehicle from
rolling .
•••
Three w hite dots appear if a settin g can not be
se lected with the se lecto r lever. For example,
this happens if adapt ive cr uise control cannot
resume dr iv ing in stop-and-go traff ic because
one o f the c onditions required for ACC to wor k
i s not p resent .
Door open
The ad aptive c ruise co ntrol system c annot
switch on whe n a doo r is open .
Stationary object ahead
This m essage appea rs if you would like to
sw itc h ada ptive cr uise con trol on and ther e is
a stat io na ry ve hicle o r obstacle directly ahead
of yo ur vehicle .

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Automatic Transmission
S tronic, tiptronic
Introduction
The automatic transmission is controlled elec­
tronically. The transmission upsh ifts or down­
shifts automatically depending on which drive
program is selected.
When a
moderate driving style is used, the
transmission selects the most econom ica l
driving mode. It will then change up early and
delay the downshifts to give better fuel econ­
omy.
The transmission switches to a sporty mode
after a kick-down or when the driver uses a
sporty driving style characterized by quick ac­
celerator pedal movements, heavy accelera­
tion, frequent changes in speed and traveling
at the maximum speed.
If desired, the driver can also select the gears
manually (tiptronic mode) ¢ page 113.
Various automatic transmissions may be in­
stalled, depending on the model :
S tronic transmission
The S tronic is a dual-clutch transmission.
Power is transferred using two clutches that
work independently from one another . They
replace the torque convert er used in conven­
tional automatic transmissions and allow the
veh icle to accelerate without a noticeable in­
terruption in traction.
tiptronic transmission
In the tiptronic transmission, power is trans­
ferred by a torque converter .
Automatic Transmission 109
Selector lever positions
Fig. 118 D isp lay in the instrument clus te r: se le ctor
lever pos itio n
The selector lever position engaged appea rs
next to the selector lever as well as in the in­
str ument cluster display.
P- Park
In this selector lever position the transm is­
s ion is mechanica lly locked . Engage P only
when the vehicle is
completely stopped Q .&.
in Driving the automatic transmission on
page 111.
To shift in or out of posit ion P, you must first
press and hold the brake pedal and then press
the release button in the selector lever handle
whi le moving the selector lever to or from P.
You can shift out of this position on ly with the
ignit ion on .
R- Reverse
Select 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 111.
Before you move the selector lever to R, press
both the button in the hand le of the selec tor
lever
and the brake pedal at the same t i me .
When the ignition is on, the backup lights illu­
minate when the selector lever is moved into
R.
N -Neutral
The transmission is in neutral in this pos ition .
Sh ift to th is position for standing with the
brakes applied
¢.&. in Driving the automatic
transmission on page 111. ..,.

110 Automatic Transmission
When the vehicle is stationary or at speeds be low 1 mph (2 km/h), you must always apply
the footbrake before and while moving the lever out of N .
DIS -Normal position for driving forward
In the D/S position, the transmission can be
operated either in the normal mode Dor in
the sport mode S . To select the sport mode S,
pull the selector lever back briefly. Pulling the
lever back again will select the normal mode
D. The instrument cluster display shows the
selected driving mode .
In the
normal mode D, the transmission auto ­
matically selects the su itab le gear ratio . It de­
pends on eng ine load, vehicle speed and driv­
ing style .
Select the
sport mode S for sporty driving.
The vehicle makes full use of the engine's
power . Shifting may become noticeable when
accelerating.
When the vehicle is stationary or at speeds below 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 ¢.&. in
Driving the automatic transmission on
page 111.
(D Note
Coasting downh ill with the transmission in
N and the engine not running w ill result in
damage to the automatic transmission
and possibly the catalyt ic converter.
(D Tips
-Audi drive select: you can ad just the
spo rty sh ift characteristics in the
Dy­
namic driving mode.Swill appear in the
instr ument cl uster display instead of D.
- If you accidentally select N while driv ing,
take your foot off the acce le rator pedal
i mmedia tely and wait for the engine to
s low down to idle before selecting D/S. -
If there is a power failure, the selector
lever wi ll not move out of the P position.
The emergency release can be used if
this happens ¢
page 115.
. Automatic Shift Lock (ASL)
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 ,r g
*
)
Fig. 119 Shi ft gate : selector lever lock pos it ions and
release butto n highl ig h ted
The selector lever lock is released as follows:
... Turn the igni tion on.
... Step on the brake pedal.
At the same time
press and hold the release button on the
side of the gear selector knob
¢fig . 119
with your thumb until you have moved the
selector lever to the desired position.
Automatic selector lever lock
0
c1i
)
The selector lever is locked in the P and N po ­
sitions w hen the ignition is turned on. You
must press the brake pedal and the re lease
button to select another position . As a re­
minder to the driver, the following warning
appears in the instrument cluster display
when the selector is in P and N:
When stationary apply brake pedal while se­
lecting gear
The Automatic Shift Lock only functions when
the vehicle is stationary or at speeds below 1 mph (2 km/h).
At speeds above about 1 mph (2 km/h) the
Automatic Shift Lock is automatically deacti-
vated in the N position . ..,.

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A time delay element prevents the selector
lever from locking when it is moved through
the N position (going from R to 0/5). The lock­
ing element will lock the selector lever if the
lever is left in N (Neutral) for more than ap­
prox imately 2 second, without the brake ped ­
al being pressed.
Release button
The release button on the selector lever pre­
vents the lever from being accidenta lly shifted
into certain positions. Depending on the direc­
tion of the shift, the selector lever locks at d if­
ferent positions . The positions a re highlighted
in the illustration
c::> fig. 119.
Driving the automatic transmission
Fig. 120 Shift gate on the center console: se lecto r lev­
er with release button
Starting the engine
.. The selector lever must be in P or N.
Starting off
.. Press and hold the brake pedal.
.. Press and hold the release button in these­
lector lever handle, select the desired selec­
tor lever position such as 0/5 and release
the button.
.. Wait briefly until the transmission has shift­
ed (you will feel a slight movement).
.. Remove your foot from the brake pedal and
acce lerate .
Stopping temporarily
.. Keep the vehicle stationary using the brak­
ing peda l, for examp le at traffic l ights.
.. Do not press the accelerator pedal when do ­
ing this.
Automatic Transmission 111
.. To prevent the vehicle from rolling when you
start driving, set the parking brake when
stopping on steep inclines
c::> .&, .
.. The parking brake will release automat ically
and the vehicle will start moving once you
press the acce lerator pedal.
Stopping/parking
If the selector lever is not in the P position
when you open the driver's door, the vehicle
could roll. The message
Transmission: Car
may roll! Shift to park!
appears.
.. Press and hold the brake peda l until the ve -
hicle has come to a complete stop .
.. App ly the parking brake
c::> page 79, Parking .
.. Select the P selector lever position i=> .&, .
Stopping on an incline
.. Always press the brake pedal to hold the ve­
hicle in place and prevent it from "rolling
back"
i=> .&, . Do not try to prevent the veh i­
cle from "rolling back" when a gear is en­
gaged by increasing the engine speed
i=> (D .
Starting on an incline
.. Activate the parking brake .
.. With the driving gear selected, press the ac ­
celerator pedal carefully . The parking brake
w ill release automatically if your seat belt is
fastened .
Under certain circumstances, such as driving
in the mounta ins, it may be useful to sw itch
temporar ily to the manual shift program in or­
der to adjust the gears to the driving condi­
tions by hand
~ ,&..
On slopes, activate the parking brake first and
then move the selector lever to the P position .
This prevents too much stress from being
placed on the locking mechanism .
A WARNING
-The vehicle can also roll when the engine
is stopped .
- Unintended vehicle movement can cause
. . . serious mJury. Iii>

112 Automatic Tran sm iss ion
-Never leave your vehicle with the engine
running while in gear. If you must leave
your 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 wheels
when the eng ine is running at idle . To
prevent the vehicle from "creeping", you
must keep your foot on the brake when
the engine is runn ing and the selecto r
lever is in D/S or R or "tiptronic" mode is
selected .
- Do not press the accelera tor pedal when
changing the selector lever pos ition
whi le the vehicle is stationary and the
engine is running.
- Never shift into
R or P whi le driving.
- Before driv ing down a steep slope , re-
duce you r speed and shift into a lower
gear with "tiptronic".
- Do not ride the brakes or press the brake
peda l too often or too long when dr iving
down a hill. Constant braking causes the
brakes to overheat and substant ially re­
duces braking per formance, increases
braking distance or causes complete fail­
ure of the brake system.
- To prevent the veh icle from rolling back
when stopping on inclines, always hold it in place with the brake peda l or parking
brake .
- Never hold the veh icle on an incline with
a slipping clutch . The clutch opens auto ­
matically when it becomes too hot from
the overload . An indicator lamp@] illu­
minates and a dr iver message appears
9 page 114 when the clutch is overload­
ed.
- If the engine must remain running, never
have any driv ing pos ition eng aged when
check ing under the hood. Make sure the
selector lever has secure ly engaged and
is locked in P with the parking brake set
9 page 225. Otherwise, any increase in
engine speed may set the vehicle in mo­
t io n, even with the park ing brake ap ­
plied .
(D Note
-When stopping on an incline, do not try
to hold the vehicle in place by press ing
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 .
- Allowing the vehicle to roll when the en ­
gine is stopped and the selecto r lever is
in N will damage the transmission be­
cau se it is not l ubricated unde r th ose cir­
c umstances.
(D Tips
Fo r safety reasons, the pa rking brake is re­
l eased automatically o nly when t he d riv­
er's safety belt is eng aged in the buckle.
Hill descent control
The hill descent control system assists the
driver when driving down declines.
Hill descent cont rol is activated when these­
lector lever is in D/S and yo u press the brake
peda l. The transmission automa tical ly selects
a gear tha t is suitable fo r the incline. H ill de ­
scent cont ro l tries to ma inta in the speed ach ­
ieved at the time of braking, within physica l
and tec hnical lim itations. If may sti ll be nec­
essary to ad just the speed with the brakes.
Hill descent cont ro l sw itches off once the de ­
cline leve ls o ut or yo u press the acce lerator
pedal.
On vehicles with the cru ise cont ro l system *
9 page 84 , hill descent control is also activa t­
ed when the speed is set.
A WARNING ,____ -
Hill descent control cannot overcome
physica l lim itations, so it may not be ab le
to maintain a constant speed under all
conditions . A lways be ready to apply the
brakes .