2013 AUDI A5 COUPE brakes

92 Transmission
& WARNING
Hill descent control cannot overcome
physical limitations, so it may not be able
to maintain a constant speed under all
conditions. Always be ready to apply the
brakes.
Manual shift program
Applies to vehicles: with S tronic transmission
Using the manual shift program you can
manually select gears .
Fig. 93 C en ter conso le : shift in g th e mu ltitro nic/t ip­
tron i c manually
Fig. 94 Steering wheel : Shi ft buttons
Gear selection with selector lever
"' N N N
" "' a)
The tiptronic mode can be s elected either with
the vehicle stationary or on the move.
.. Push the selector lever to the right from 0/
S. As soon as the transmission has switched
over , the selected gear appears in the dis­
play .
.. To upshift, push the selector lever forward
to the plus position
0 o fig . 93 .
.. To downshift, push the lever to the minus
pos it ion
0 -
Gear selection with paddle levers*
The shift buttons are activated when these­
lector lever is in 0/5 or the tiptronic manua l
shift program.
.. To upshift, touch the button on the right ©
ofig. 94 .
.. To downshift, touch the button on the left
0 .
When accelerating, the transmission will au­
tomatically shift into the next gea r before the
engine reaches its maximum RPM.
If you apply a light throttle when accelerat­
ing, tiptronic will automatically shift from 1st
to 2nd gear to save fuel. If you apply a heavy
throttle , the transmission will stay in 1st gear
until near maximum RPM is reached, or until
the drive r shifts into 2nd gear .
If you take you r foot off the acce le rator pedal
when dr iving down a steep incline, tiptronic
will downshift from the selected gear into the
next lower gear until it reaches 1st gear,
based on road speed and engine RPM. Auto­
matic downshifting is interrupted as soon as
you apply the throttle again.
@ Tips
-When you shift into the next lower gear,
the transmission will downshift only
when there is no possibility of over-rev ­
ving the engi ne.
- When the kick-down comes on, the
transmission will shift down to a lower
gear, depending on vehicl e and engine
speeds .
- Tiptronic is inoperative when the trans­
mission is in the fail-safe mode .
Kick-down
Applies to vehicles: with S tronic transmission
Kick-down enables maximum acceleration .
When you press the accelerator pedal down
beyond the resistance point, the automatic
transmission downshifts into a lower gear, de­
pending on vehicle speed and engine RPM .
It ...

96 Audi adaptive cruise control and braking guard
confirmed by the video camera, an acute
collision warning.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather
(such as ice, fog, gravel, heavy rain and
hydroplaning). Using the system under
these conditions could result in a colli­
sion.
- Switch adaptive cruise control off tempo­
rarily when driving in turning lanes, on
expressway exits or in construction
zones. This prevents the vehicle from ac­
celerating to the set speed when in these
situations.
- The adaptive cruise control system will
not brake by itself if you put your foot on
the accelerator pedal. Doing so can over­
ride the speed and distance regulation.
- When approaching stationary objects
such as stopped traffic, adaptive cruise
control will not respond and braking
guard will have limited function.
- The adaptive cruise control system and
braking guard do not react to people, an­
imals, objects crossing the road or on­
coming objects .
- The function of the radar sensor can be
affected by reflective objects such as
guard rails, the entrance to a tunnel,
heavy rain or ice.
- Never follow a vehicle so closely that you cannot stop your vehicle safely. The
adaptive cruise control cannot slow or
brake the vehicle safely when you follow
another vehicle too closely . Always re­
member that the automatic braking
function cannot bring the vehicle to a sudden or emergency stop under these
conditions.
- To prevent unintended operation, always
switch ACC
off when it is not being used.
{[) Note
The sensor can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That could affect the adaptive cruise control system and braking guard.
Have your authorized Audi dealer or au­
thorized Audi Service Facility check their
function.
, In curves
App lies to vehicles: wi th Audi ada ptive c ruise contro l
Fig. 98 Example: d riving i nto a curve
When driving into a curve ~ fig. 98 and out of
a curve, the adaptive cruise control may react
to a vehicle in the next lane and apply the
brakes. You can override or prevent the brak­
ing by pressing the accelerator pedal briefly.
Stationary objects
Applies to vehicles : wi th Audi adapt ive crui se contro l
Fig. 99 Example: object changing lanes a nd stat ionary
object
The adaptive cruise control system only reacts
to objects that are moving or that the system
has already detected as moving. For example,
if a vehicle @, which has already been detect­
ed by the adaptive cruise control, turns or
changes lanes and another stationary vehicle
@ is located in front of that vehicle, the sys­
tem will not react to the stationary vehicle.

98 Audi adaptive cruise control and braking guard
Switching on and off
Applies to vehicles: with Audi adaptive cruise co ntrol
Fig. 101 Selec tor lever: switching on/off
Fig . 102 Instrument clus te r: adap tive cru ise control
You can set any speed between 20 mph and
95 mph (30 and 150 km/h).
Indicator lamps and messages in the instru­
ment cluster display inform you about the cur­
r ent system status and settings.
Switching adaptive cruise control on
.. Pull the lever toward you into posit ion @
-:>fig . 101 . ACC standby appears in the in­
strument cluster d isplay .
Setting the speed and activating
regulation
.. To set the current speed , press the ISET !
button r:::> page 11 , fig. 4. The set speed is shown in the tachometer
@and is also
shown briefly in the display@r:::>fig.
102.
Switching adaptive cruise control off
.. Push the lever away from you into pos itio n
@ unt il it clicks into place. The message
ACC off appears.
@ Indicator lights
II-Adaptive cruise control is switched on. No
vehicles are detected up ahead. The stored
speed is maintained.
I -A moving vehicle is detected up ahead .
T he adapt ive cru ise control system regulates
the speed and distance to the moving vehicle
ahead and accelerates/brakes automatically.
I -When automatic braking is not able to
keep e nough d istance to a prev iously detected
moving veh icle up ahead, you must take con­
trol and brake
r:::> page 101, Request for driver
intervention.
© Display
If adapt ive cru ise control is not shown in the
display, you can call it up w ith the
I RESET I
button r:::> page 24.
Based on the symbols in the display, you can
determine if the system is maintai ning a d is ­
tance to the vehicle ahead and what that dis­
tance is.
No vehicle -No vehicle ahead was de tected .
White vehicle -A vehicle ahead was detected .
Red vehicle -Prompt for the driver to take ac­
tion
r:::> page 101 .
Both arrows on the scale© indicate the dis­
tance to the vehicle ahead. No arrow appears
when the vehicle is on an open road and there
is no object ahead. If an object is detected
ahead, the arrow moves on the scale .
T he green zone on the scale shows the stored
distance. For information on changing the
stored distance, refe r to ~
page 100 . If the
distance se lected is too close or may soon be ­
com e too close , the arrows move into the re d
z one on the sca le.

100 Audi adaptive cruise control and bra king guard
Setting the distance
App lies to vehicles: with Audi adaptive cruise control
Fig. 105 Selector lever: setting the distance
~ Tap the switch to display the current set dis­
tance¢
fig. 105.
~ To increase or reduce the distance by incre­
ments, tap the switch again to the left or
right. The distance between the two veh icles
will change in the instrument cluster dis­
play.
When approaching a moving vehicle up ahead,
the adaptive cru ise cont rol system brakes to
matc h that object's speed and then maintains
the stored distance. If the vehicle ahead ac­
celerates, adaptive cruise control will a lso ac ­
celerate up to the stored speed.
The higher the speed, the greater the distance
in yards (meters)¢ ,&.. T he
Distance 3 setting
is recommended .
The distances p rov ided are spec ified values.
Depending on the driving situation and the
how the vehicle ahead is dr iving, the actual
distance may be more or less than these tar­
get distances .
The various symbols fo r the time increments
appear briefly in the in fo rmation line @
c;, page 98, fig. 102 when you change the set­
tings .
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 interva l 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
t ime 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
t ime interval of 2.3 seconds.
A WARNING
Following other veh icles too closely in­
creases the risk of collis ions and ser ious
personal injury.
- Sett ing short distances to the traffic
ahead reduces the time and d istance
availab le to bring your vehicle to a safe
stop and makes it even more necessary
to pay close attention to traffic.
-
-Always obey applicab le traffic laws, use
good judgment, and se lect a safe follow­
ing distance for the traffic, road and
weather conditions .
0) Tips
-Distance 3 is set automatically each time
you switch the ignition on.
- Your standard sett ings are automatically
stored and ass igned to the remote con­
trol key being used.
Setting the driving program
Applies to vehicles: with Audi adaptive cruise control
Depending on the selected driving program
and distance, driving behavior when accelerat­
ing will vary from dynamic to comfortable .
Setting the driving program for vehicles
without Audi drive select*
~ In the radio/MM!*, select : ICARlfunction
button >
Adaptive cruise control > Driving
prog.
> comfort, standard or dynamic . Or
~ Select: !CAR ! function button> Car sys­
tems *
control button > Driver assist > Adap­
tive cruise control
> Driving program * >
Comfort, Standard or Dynamic .

Audi adaptive cruise control and braking guard 101
Setting the driving mode for vehicles with
Audi drive select*
Refer to <=> page 1 10.
(D Tips
Yo ur setti ngs a re automatically store d an d
assig ned to the remote contro l key be in g
used.
Request for driver intervention
A pp lies to vehicles: w ith Audi a daptive cruise control
Fig. 106 Inst rumen t cl uster: reques t fo r drive r in te r·
ve ntio n
In ce rtain si tuations, t he sys tem w ill prom pt
you to take actio n. This cou ld ha ppen, for ex­
ample, if braking by the a daptive cr uise con ­
trol system is not enough to maintain enough
d istance to the vehicle ahead.
The inst rument cluste r will war n you about
the danger
<=>fig. 106:
- A red ve hicle is pic tured in the d is pla y.
- The text
DISTANCE! appea rs in the s ta tus
b ar.
- T he r ed indi cator lig ht
I blinks .
- In add it ion, a warning tone sounds.
Audi braking guard
Description
App lies to vehicles: wi th Audi ada ptive c ruise con tro l
Fig. 10 7 In str um ent clus ter: approach warnin g
Audi braking guard uses a radar sensor . It also
funct ions wit hin the lim its of the system
whe n adapt ive cruise control is switched off.
What can Audi braking guard do?
When detected in time, the system can assess
situations when a veh icle ahead brakes s ud­
denly or if your own vehicle is t raveling at a
high speed and approac hing a ve hicle up
ahead that is movi ng mo re sl ow ly. Audi brak­
ing guard does not react if it canno t detect
the si tua tion.
The system advis es yo u of various s ituations:
- The
distance wa rning is given if yo u are too
close to the vehicle ahead for a long time. If
the vehicle ahead bra kes sharply , yo u will
not be ab le to avoid a collision . The ind icator
light
I in the d isp lay comes o n.
- The
approach warning is given when a de­
tected ve hicle up ahead i n your lane is mov­
ing m uch mo re sl owly than you are or if i t
brake s sh arp ly. W hen t his war ning is g iven,
it may on ly be poss ible to avoi d a co llision
by swe rving or b ra kin g sharp ly. The indic ator
light
I a nd indic ator in t he di spl ay w ill war n
you abo ut the d ange r¢
fig . 107. You will a l­
so hear an aco ustic s ignal.
If y o u do no t rea ct fas t eno ugh o r do not r eact
at all to the si tuat ion, A udi brak ing g uard w ill
i nt ervene by braking and the message
braking
guard intervention
w ill appea r. ~

102 Audi adapti ve cruise control and br aking guard
- If a co llision is imminent, the system will
first provide an
acute warning by bri efly and
sharp ly app ly ing the brakes .
- If you do not react to the ac ute warning ,
braking guard can brake within the limits of
the system. This reduces the veh icle speed
in the event of a collis ion.
- At speeds under 20 mph (30 km/h), the sys ­
tem can in it iate a complete deceleration
s hortly before a collision .
1>.
- 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 .
Which functions can be contr oll ed ?
You can sw itch Audi braking g uard and the
distance/approach warning on or off in the ra­
d io or MMI Qpage 102, Set tings in the ra­
dio/MM!.
A WARNING
Lack of attention can cause col lisions, oth­
er accidents and serious persona l injuries.
The Audi b raking guard is an assist system
and cannot prevent a collis ion by itself.
The driver must always intervene. The dr iv­
er is always responsible for braking at the
correct time.
- Always pay close attention to traffic,
even when the Audi braking guard is
switched on. Be ready to intervene and
be ready to take comp lete control when­
ever necessary. Always keep the safe and
legal distance between your vehicle and
vehicles up ahead .
- Audi braking guard works within limits
and w ill not respond outs ide the system
limits, for examp le when approaching a
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 s ensor
for the A udi braking guard works only
within defined detect ion and range limits
l ) Th is is not available in some c oun tries .
that may prevent the proper detection of
other veh icles.
- The radar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving veh icles up ahead may not
be prompt ly detected or may not be de­
tected at all .
- Reflective surfaces including crash barri­
ers or tunne l entrances may impair the
function of the radar sensor .
(D Tips
- You can cancel the braking that is in it iat­
ed by the system by braking yourse lf, by
accelerating not iceably or by swerving .
- Audi braking guard error messages
Qpage 103.
- Keep in mind that brak ing guard can
brake unexpectedly. Always secure any
cargo or objects that you are transport­
ing to reduce the risk of damage or in­
jury .
Settings in the radio/MMI
Applies to vehicles: with Audi adaptive cruise control
., Sele ct: I CAR I func tion button > Car system s
contro l but ton > Driver a ssist> Audi brak ­
ing guard .
Or
., Select: !CAR ! function b utton > Aud i brak-
ing guard .
S ys tem -
Switch A udi braking guard On and
Off . When you switch the ignition on, the
message
Audi b raking guard off appears if
the system is switch ed off .
Ea rl y warnin g -The distance and approach
warnings in the display can be switched
O n/
Off .
(D Tips
-Yo ur settings are automatically stored
and assigned to the remote contro l key
being used at the times the settings are
made.

186 Intelligent technology
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), dynamic steering" and
e lectronic interaxle differentia l lock* /selective
wheel torque control* . ESC is switched on all
the t ime. I n certa in s ituations whe n you need
l ess t raction, you can switch
off ASR by p ress­
i ng the bu tto n
[ru ¢ page 187, fig. 161 or
¢ page 187, fig. 162. Be sure to sw itch ASR
on aga in when yo u no longer need less t rac­
tion .
Anti -lock braking system (ABS)
ABS prevents the wheels from locking up
when braki ng. The veh icle can still be steered
even d uring h ard br aking. Apply ste ady p res ­
sure to the brake pedal. Do no t pump the ped­
a l. A pulsing in the brake peda l indicates t hat
the system is he lping yo u to b rake the vehicle .
Brake assist system
The brake assis t system can decrease b ra ki ng
d ista nce. It incre ases braking power w hen the
d river p resses the brake pedal q uic kl y in eme r­
gency situations . You must p ress and hold the
b rake peda l until the situation is over. In
vehicles w ith adapt ive cru ise contro l", the
brake assist system is more sensit ive if the
d ista nce detected to t he vehicle a head is too
small.
Anti-slip regulation (ASR)
ASR reduces engine power when the drive
wheels begin to spin and adapts the fo rce to
the road condit ions. This makes it eas ier to
start , accelerate and drive up hills.
Electronic differenti al lock (EDL )
The ED L brakes wheels that are spinn ing and
transfers the drive power to the other drive
wheel or whee ls if t he vehicle is equipped with
all-w heel drive*. This function is available up
to abo ut 60 mph (100 km/h).
In extreme cases, EDL automat ica lly switches
off to help keep the bra ke on the braked whee l
from overheating. EDL wi ll switch on again au-tomat
ica lly when conditions have ret urned to
no rma l.
Dynamic steering*
On vehicles wi th dynam ic steering*, ESC he lps
st abiliz e the steer ing in cr itical situ ations.
Electronic interaxle differential lock* /
selective wheel torque control*
T he elec troni c int eraxle differentia l lock (front
whee l dr ive) o r th e se lec tive whee l torque
control (all-whee l dr ive) oper ates when dr iv ­
ing t hro ugh curves. The front w heel on the in ­
side of the c urve or both whee ls on the inside
of the c urve are b raked se lectively as needed.
This m inimizes sliding in the front wheels and
allows for more precise driving through
curves . The applicable system may not acti­
vate when dr iving in wet o r snowy cond itions.
A WARNING
- ESC, ABS, ASR, EDL dynam ic steering*
an d the ele ct roni c interaxle differential
lo ck* /se lective whee l torque con trol *
fu nction canno t over come the laws of
p hys ics. Th is is especially important on
slippe ry or wet roads . If the systems be­
g in acting to stabilize yo ur vehicle, you
should immediately change yo ur speed
to match the road and traffic conditions. Do not let the increased safety provided
by these systems tem pt you to ta ke risks.
Doing so will increase the risk of a loss of
veh icle cont ro l, col lision and ser ious per­
sonal injur ies.
- Always ada pt your speed to road, traffi c
a nd wea ther condi tions. The risk of los-
ing con trol of the vehicle increases when
d riving too fast, es pec ia lly through
curves and o n slippe ry or wet roads, an d
when dr iv ing too close to vehicles up
ahead. ESC, ABS, the brake ass ist sys­
tem, ASR, EDL dynam ic steer ing* and the
e lectronic inte raxle differentia l lock*/se­
lec tive whee l to rque control* func tion
cannot prevent collisions.
-

188 Intelligent technology
Braking
What affects braking efficiency?
New brake pads
During the first 250 miles (400 km), new
b rake pads do not possess their fu ll braking
effect , they have to be "broken in" first¢.&. .
You can compensate for this slightly reduced braking power by push ing harder on the brake
pedal. Avoid heavy braking loads during the
break-in per iod.
Operating condition s and d riv ing hab it s
The brakes on today's automob iles are st ill
subject to wea r, depending largely on operat­
ing conditions and driving habits¢.&. . On
vehicles that are e ither driven mostly in stop­
and-go city traffic or are driven hard, the b rake pads should be checked by your author­
ized Audi dealer more often than specified in
the
Warranty & Maint enan ce booklet . Failure
to have your b rake pads inspected can res ult
in red uced brake pe rformance.
On steep slopes, you shou ld use the brak ing
effect of the engine. This way, you p revent un­
necessa ry wear on the brake system. If yo u
must use yo ur brakes, do not hol d the brakes
down continuously. P ump the brakes at inter ­
va ls.
Operating noise
Noises may occur when braking depending on
the speed, brak ing fo rce and outside condi­
tions such as temperature and humidity.
Effect of water and road salt
In ce rtain situat ions, for example after driving
through water , in heavy ra in, after overn ight
conde nsation or afte r washing your car, the
b rak ing effect can be redu ced by mois ture or
ice on the brake rotors and brake pads . The
brakes must be dried first with a few careful
brake applications .
A t higher speeds and with the w indshield w ip­
ers turned on, the brake pads press against
the brake rotors for a short amount of time .
This occurs at regular intervals witho ut the driver noticing and p
rovides fo r bette r brake
response time under wet conditions .
T he effec tiveness of the brakes can be red uced
when the vehicle is d riven on a sa lt -covered
r oad and the brakes are not used . Likewise,
you clean off accumulated salt coating from brake d iscs and pads with a few cautio us ap­
plicat ions of the brake ¢ .&. .
Corro sio n
The re may be a tendency for di rt to b uild up
on the brake pads and corrosion to form on
the discs if the car is not driven regularly or only fo r short trips w ith litt le use of the
brakes.
If the brakes are not used frequently, o r if cor ­
rosion has formed on the discs, it is advisable
to clean off the pads and d iscs by braking
firmly a few times from a moderately high
speed ¢.&. .
Fault s in the brak e syst e m
If you s hou ld notice a sudden increase i n
brake pedal trave l, then one of the two brake
c ircuits may have failed ¢.&. .
Low brake fluid level
Malfunctions can occ ur in the b ra ke system if
the brake fluid level is too low. The brake fluid
l evel is monitored electronica lly.
Brake booster
T he bra ke booster inc reases the pressure that
you generate wi th the b rake peda l. It works
o n ly when the engine is runn ing .¢ .&.
Brake lining wear status
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
th rough the ope nings in the wheel. If neces­
sary, the wheel may be removed for t his in­
spect ion ¢
page 253, Changing a wheel.
_& WARNING ,____
-New b rake pads don't have the best stop­
p ing power and m ust be "broken-in" dur-
ing the initial 100 to 150 miles (150 to
11>-