2015 AUDI RS7 SPORTBACK brake light

86 Audi adaptive cruise control and braking guard
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. If the ve­
h icle 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)
c::> & . The Distance 3 setting
is recommended .
The distances prov ided are spec ified values .
Depending on the driving situation and the
how the vehicle ahead is driving, the actual
d istance may be more or less than these tar ­
get distances.
The various symbols for the time increments
appear briefly in the information line @
c::> page 83, fig . 93 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 inte rval 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 inj ury.
- 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.
@ 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 veh icles: w ith Audi adaptive cruise co ntrol
.,. Select the desired driving mode in drive se­
lect
c::> page 96 .
(D Tips
Your settings are automatically stored and
ass igned to the remote control key being
used.
Prompt for dr iver intervention
Applies to veh icles: w ith Audi adaptive cruise co ntro l
Fig. 97 Instrume nt cluster: req uest fo r drive r inte rven­
t ion
In certain situations, the system will prompt
yo u to take action . This could happen, for ex­
amp le, if braking by the adap tive cruise con­
tro l system is not enough to maintain enough
distance to the veh icle ahead .
T he indicator light . and the symbol in the
display will war n you abo ut the situat ion
c::> fig. 97. You wi ll also hear an acoustic signal.
- Press the brake pedal to slow yo ur vehicle
down.

Audi adaptive cruise control and braking guard 87
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Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise control
Fig. 98 Instrument cluster: approach warning
Braking guard uses radar sensors and a video
camera . It also functions within the limits of
the system when adaptive 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 t raveling at a
high speed and approaching a vehicle up
ahead that is moving more slowly . Braking
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 possib le to avoid a collision
by swerving or braking sharply. The indicator
light. and indicator in the display will
warn you about the danger
c::> fig. 98. You
will also hear an acoustic signa l.
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This is not ava ilable in som e coun tri es. rl
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 col lision is imminent, the system will
first provide an
acute warning by brief ly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking g uard can brake with increasing
force within the limits of the system . This
reduces the vehicle speed in the event of a
co llision.
- The system can initiate maximum braking
shortly before a collision
1 ) . Full deceleration
at high speeds occurs only in vehicles with
adaptive cru ise control and side assist (pre
sense plus) .
- If the braking guard senses that you are not
braking hard enough when a collision is im­
minent, it can increase the brak ing force .
- The pre sense functions also engage when a
collision is imm inent
c::> page 184 .
Which function s can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the MMI
c::> page 88, 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 responsible for braking at the cor­
rect time.
- Always pay close attent 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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Automatic Transmission
tiptronic
Introduction
The automatic transmission is controlled elec­
tronically. The transmiss ion 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 ical
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 107.
In the tiptronic transmission, power is trans­
ferred by a torque converter .
Selector lever positions
Fig. 117 Disp lay in the instrument cluster: selector
lever posit ion
The selector lever position engaged appears
next to the selector lever as well as in the in­
strument cluster display.
P - Park
In this selector lever position the transmis­
sion is mechanically locked. Engage P only
Automatic Transmission 103
when the vehicle is completely stopped ¢ &
in Driving the automatic transmission on
page 105.
To shift in or out of position 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 or from P.
You can shift out of this position only with the
ignition on.
R- Reverse
Select R on ly when the vehicle is at a full stop
and the engine is running at idle speed¢.&. in
Driving the automatic transmission on
page 105.
Before you move the selector lever to R, press
both the button in the hand le of the selector
lever
and the brake pedal at the same time .
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 position.
Shift to this position for standing w ith the
brakes applied ¢
& in Driving the automatic
transmission on page 105 .
When the vehicle is stationary or at speeds
below 1 mph (2 km/h), you must always apply
the footbrake before and whi le mov ing the
lever out of
N.
D/S -Normal position for driving forward
In the D/S position, the transmission can be
operated either in the norma l mode D or in
the sport mode S. To select the sport mode S,
pull the selector lever back briefly. Pulling the
lever back again will se lect the norma l mode
D. The instrument cluster display shows the
selected driving mode.
In the normal mode D, the transmission auto­
matically selects the suitable gear ratio. It de­
pends on engine load, vehicle speed and driv­
ing style.
Select the sport mode S for sporty driv ing.
The vehicle makes full use of the engine's

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lever is left in N (Neutral) for more than ap­
proximately 2 second, without the brake ped­
al being pressed .
Release button
The release button on the selector lever pre­
vents the leve r from being accidentally shifted
into certa in positions. Depending on the direc­
tion of the shift, the se lector lever locks at d if­
ferent positions. The positions are highlighted in the illustration
c!> fig . 118.
Driving the automatic transmission
Fig. 119 Shift gate on the c ente r conso le: se lector le v­
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
l ector lever handle, se lect the desired se lec­
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 pedal, for example at traffic lights .
.,. Do not press the accelerator pedal when do­
ing this .
.,. To prevent the vehicle from rolling when you
start driving, set the parking brake when
stopping on steep inclines
c!> .&,.
Automatic Transmission 105
.,. The parking brake will release automatica lly
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 pedal un til the ve-
hicle has come to a complete stop .
.,. App ly the parking b rake
c::> page 77, Parking.
.,. Select the P selector lever position c::> .&,.
Stopping on an incline
.,. Always
press the brake pedal to hold the ve­
hicle in place and prevent it from "rol ling
back"
c::> .&, . Do not try to prevent the vehi­
cle from "rolling back" when a gear is en­
gaged by increasing the engine speed
c::>(D.
Starting on an incline
.,. Activate the parking brake.
.,. With the driving gear selected, press the ac­
celerator pedal carefully. The parking brake
wi ll release automatically if your seat belt is
fast ened .
Under certain circumstances, such as driving
in the mountains, it may be useful to switch
temporarily to the manual shift program in or­
der to adjust the gears to the driving condi ­
tions by hand
c::>page 107.
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 injury.
- Never leave your vehicle with the engine
running while in gear . If you must leave
your veh icle when the engine is running,

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@ Tips
Your vehicle may be equipped with Audi
connect. Your use of certain Aud i connect
features req uires wireless serv ices that are
provided by a third party wireless telecom­
municat ions provider. For details regard­
ing how information obtained through
Aud i connect is collected, processed,
transmitted, used, and shared, please see
your contra ct w ith the wire less telecom ­
municat ions provider and the "About A udi
connect" tab in your vehicle's MMI:
!MENU !
button > Audi connect > About Audi con·
nect .
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of veh icle control. It works
only when the eng ine is running. ESC detects
certain difficult driv ing s ituations, including
when the vehicle is beginning to spin (yaw)
out of cont ro l and helps you to get the vehicle
back under control by select ively brak ing the
wheels, and/or red ucing engine powe r and
p roviding steering assistance to help hold the
ve hicle on the driver's intended course . The in­
dicator light
m in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations.
It is important to remem­
ber that ESC cannot overcome the laws of
phys ics. It will not a lways be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
h elp you master situat ions where there is a
sudden change in the coefficient of fr iction of
the road surface. When there is a sect io n of
d ry road that is s udden ly cove red with water,
slush o r snow, ESC canno t perform the same
way it would on the dry su rface.
If the vehicle
hydroplanes (rides on a c ush ion of wate r in­
stead of the road surface), ESC wi ll not be
ab le to he lp you steer the veh icle because con-
Int ellig ent technolog y 187
tact with the pavement has been interrupted
and the vehicle cannot be braked or steered .
D uring fast corner ing, particular ly on wind ing
roads, ESC cannot always deal as effectively
with difficult dr iv ing s ituations than at lower
speeds.
A lways adjust your speed and driving style to
road, traffic and weather condit ions. ESC can­
not override the vehicle's physical lim its, in­
crease the availab le tract ion, or keep a veh icle
o n the road if road departu re is a result of
drive r inattent io n. Instead, ESC imp roves the
poss ibility of keep ing the vehicle unde r con­
trol and on the road dur ing extreme maneu­
vers by using the driver's steering inp uts to
help keep the vehicle going in the intended di ­
rection . If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
ESC is switc hed on all the time . In certain sit­
uat ions when you need less traction, yo u can
switch off ASR by pressing the button
[&I
c::> page 189, fig. 180. Be sure to switch ASR
o n again when you no longer need less t rac ­
t ion.
The following systems are integrated in the
ESC:
Anti-lock bra king sy stem (ABS )
ABS prevents the whee ls from locking up
whe n brak ing. The vehicle can sti ll be stee red
even dur ing hard braking. App ly steady pres­
s u re to the brake pedal. Do not pump the ped­
al. A pulsing in the brake pedal indicates that
the system is helping you to brake the vehicle.
Brake as sist sy stem
The brake assist system can decrease braking
distance. It increases brak ing power when the
driver presses the brake peda l quickly in emer­
gency s ituations. You must press and hold the
brake pedal until the situation is over. In
vehicles with adapt ive c ruise control*, the
brake assist system is more sensitive if the
distance detected to the vehicle ahead is too
small.
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192 Intelligent technology
overheat, premature wear and increased
stopp ing distance.
- Under certain climatic and operating
condit ions such as passing through wa­
ter, driving in heavy ra in or after wash ing
the vehicle, the effect iveness of the
brakes can be reduced. In winter, ice ca n
accumulate on the brake pads, linings ,
discs and d rums . Carefully apply brakes
for a test . B rakes wi ll dry a nd ice coat­
ings will be cleaned off after a few c are­
f ul brake app lications .
- Dr iv ing fo r an ex tende d pe riod of time on
salt-covere d roads w ithout us ing yo ur
brakes can also affect braking efficiency.
Clean off accumulated salt coating from
bra ke discs and pads w ith a few caref ul
brake applicat ions.
- If you damage the front spoiler, or if you
install a different spoiler, be sure the air
flow to the front brakes is not obstruct­ ed. Otherwise the brake system could
over heat reducing the effectiveness of
the ent ire brake system .
- Failure of one brake c ircuit will impair
the braking capability res ulting in an in­
creased stopp ing distance. Avoid driv ing
the vehicle and have it towed to t he near­
est Aud i dea le r o r q ualified w ork sho p.
- Never let the vehicle ro ll to a stop w ith
the e ngine shu t off.
- If the brake booster is not working, the
brake pedal must be p ressed conside ra­
bly harder to make up for the la ck of
booster assistance.
Electromechanical
power assist, dynamic
steering
The electromechanical power assist helps the
driver when steering .
Power stee ring adapts electronically based on
the vehicle speed .
Indicator lights and messages
• Steer ing defective! Stop the vehicle
If this indicato r light turns on and stays on
and this message appears, the power steering
may have failed.
Do
not con tinue dr iv ing . See your author ized
Audi dealer or other qualified repair facility
for assistance .
l;r-ij Steering: System fault You can continue
driving
If the indicato r light turns on and the mes­
sage appea rs, the stee ring may be more diffi­
cul t to move o r more sensi tive th an usua l. The
steering wheel may a lso be at an ang le when
driving straight .
Drive slowly to you r authorized Aud i dea le r o r
qualified wo rks hop to have the ma lf u nct ion
corre cted.
l;r,ij Dynamic steering: Initializing
If this driver message appears and t he indica­
tor light is f lashing on the instrument panel,
dynam ic steer ing* is being rei nitia lized. Afte r
sta rting the engine, the stee ring wheel will
move s ligh tly. Re- ini tiali zation mig ht be ne c­
e ssa ry if the stee ring wheel was moved h ard
to the left an d right wh ile the vehicle was not
moving . The display goes out as soon as initi ­
alization is complete.
D rive slowly to you r aut horized Audi de aler or
qualified wo rkshop to have the ma lf u nct ion
corrected.
A WARNING
Have t he dynamic stee ring * system mal ­
f u nction repa ired as soon as possib le by an
a uthorized Audi dealer or qua lified wor k­
shop - risk of accident !
(D Tips
If the . or@ indicator light on ly stays
on for a short time, yo u may continue driv­
i ng.
- The dynamic steering * sta bility systems
are not avai lab le in the event of a system
ma lf u nction.
- For add itiona l information on dynamic
steering *, refer t o
c> page 96.

Avoid damaging the
vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that
low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
T his is especially true for vehicles with low­
slung chassis (sports chassis) * and fully load­
ed veh icles .
Driving through water
on roads
Note the following to avoid vehicle damage
when driving through water, for example on
flooded roads:
- T he water must not be any h igher than the
bottom of the veh icle body.
- Do not d rive faster than wa lking speed.
..&, WARNING
After driving through wate r, m ud, slush,
etc., the brakes may be slow to take effect
because o f wet brake rotors and pads . Dry
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
- Vehicle components such as the eng ine,
transmission, suspension or e lectrical
system can be severely damaged by driv­ ing through water.
- Check the depth o f the water before driv ­
ing through it.
- Do not s top the veh icle, drive in reverse
or switc h the engine off when driving
through water.
- Keep in mind that oncoming vehicles may create waves that raise the water
level and make it too deep for your vehi­
cle to drive through safely.
- Avoid driving thro ugh sa lt water because
-
~ it can ca use corrosion. ,....,
Dri vin g and en vironm ent 197
Warming up and
cooling down
By carefully warming up and cooling down
your vehicle, you can help ensure that it is not
overstressed unnecessar ily during sporty dr iv­
ing.
When warming up, the vehicle is dr iven at a
maximum engine speed of 6000 RPM in order
to raise the engine o il temperature to a mini­
mum of 140
°F (60 °() . The t ires a lso on ly
reach the ir full road holdi ng capabi lity on ce
they have warmed up.
The cooli ng fan can cont inue to run in your ve­
hicle after the engine is switched off . Howev­
er, driving the veh icle to coo l it down is pa rti c­
ul arly important. Dur ing spo rty driving , the
engine and b rakes, the exhaust system, and
the transmission a ll become extremely hot.
Before you park the vehicle, you should drive
it for a few miles/kilometers at light load in
the low rpm range to allow it to cool down .
Catalytic converter
App lies to vehicles: wi th gaso line e ngi ne
It is very important that your emission con­
trol system (catalytic converter) is function ­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner.
"' Always use lead-free gasoline c:> page 206,
Fuel supply .
"' Never run the tank down all the way to emp­
ty.
"' Never put too much mo to r o il in yo ur eng ine
c:> page 21 S, Adding engine oil "t:::r..
"' Never try to push -or tow -start you r vehicle .
T he catalytic co nve rter is an efficient "clean ­
u p" dev ice bui lt into t he exhaus t system of
the ve hicle . The cata lytic converter bu rns
many of the pollutants in the exha ust gas be ­
fore they are re leased into the atmosphere.
T he exclus ive use of unleaded fuel is c ritical ly
i mportant for the life of the catalyt ic convert -
er and proper functioning of the engine .
Iii>
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@ Tips
The consumption estimates as published by ENVIRONMENTAL PROTECTION AGENCY (EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehi­
cle load and speed, road and weather con­
ditions, trip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac­
celerating.
~ Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they are ac­
celerating. If you anticipate what is going to happen next, you will need to brake less and,
thus , accelerate less . Let the vehicle coast
whenever possible -for example when you see
that the next traffic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
~ Try and keep well below your car's maximum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the
environment .
Fuel consumption, exhaust emissions and en­
gine noise increase disproportionately at high
speeds . If you drive at approximately three
quarters of top speed, fuel consumption will
be reduced by one half. Never drive faster
than the posted speed limit and weather con­
ditions permit.
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel .
~ Shut the engine off when you are not driving
the vehicle.
Driving and environment 199
~ Do not warm up the vehicle by letting the
engine run at idle.
It makes sense to shut off the engine in traffic
jams , when waiting for trains to pass at rail­
road crossings, or at traffic lights that have
long waits on red. Turning the engine off for
just 30 -40 seconds saves more fuel than is
burned starting the engine again.
It takes a long time for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting . If warning lights should come
on to indicate improper operation, they
would go unheeded. Extended idling also
produces heat, which could result in over­
heating or other damage to the vehicle or
other property.
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
~ Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
Audi dealer helps to ensure that it runs prop­
erly and economically. The condition of your
vehicle not only affects its safety and ability to
hold its value, it also affects
fuel consump­
tion.
Check your oil each time you fill your tank.
The amount of oil used is related to engine
load and speed .
It is normal for the oil consumption of a new
engine to reach its lowest value after a certain
mileage has been driven .
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