2015 AUDI A5 brakes

Automatic transmission
¢ page 191. Otherwise, any increase in en­
gine speed may set the veh icle in motion,
even with the parking brake applied.
(D Note
- When stopping on an incline, do not try to
hold the vehicle in place by pressing the ac­
ce lerator pedal while a driving gear is se ­
lected. This can cause the transmission to
overheat and can damage it . Activate the
parking brake or press the brake pedal to
prevent the vehicle from rolling.
- Allowing the vehicle to roll when the engine
i s stopped and the selector lever is in
N w ill
damage the transm ission because it is not
lubr icated under those circumstances.
@ Tips
For safety reasons, the park ing brake is re­
leased automatically only when the dr iver's
safety belt is engaged in the buckle.
Hill descent control
A pp lies to veh icles: w ith 5 tro nic/t iptronic
The hill descent control system assists the driver
when driving down declines.
Hill descent control is activated when the selec­
tor lever is in D/S and you press the brake pedal.
The transmission automatica lly selects a gear
that is suitable for the incline. Hill descent con­
trol tries to maintain the speed achieved at the
tim e of braking, within physical and technical
limitations. It may still be necessary to adjust the
speed with the brakes.
Hill descent control switches off once the decline
levels out or you press the acce lerator pedal.
On veh icles w ith the cruise control system*
¢ page 80, hill descent control is also act ivated
when the speed is set.
& WARNING
Hi ll descent control cannot overcome physical
limitations, so it may not be ab le to maintain
a constant speed under all conditions. Always
be ready to apply the brakes.
86
Manual sh ift program
App lies to vehicles: wit h S tron ic/tip tro nic
Using the manual shift program you can man­
ually select gears.
'
Fig. 89 Center console: shifting the gears manually
Fig. 90 Steering wheel: sh ift padd les•
Gear selection with selector lever
The tiptronic mode can be selected either w ith
the vehicle stationary or on the move.
11> Push the se lector lever to the right from D/S.
An M appears in the instrument cluster display
as soon as the transmission has shifted .
"T o upshift, push the se lector lever forwa rd to
the plus position
G) ¢ fig. 89.
" To downshift, push the lever to the minus posi-
tion
0 .
Gear selection with shift paddles*
The shift paddles are activated when the selector
l ever is in D/S or the tiptronic manual sh ift pro ­
gram .
" To upshift, touch the shift padd le on the r ight
G) ¢fig. 90.
"To downshift, touch the shift paddle on the left
0 .
11o Ifyou do not press a shift p addle within a short
time while in the 0/5 position, the transmission .,.

Audi adapt ive cru ise control and brak ing gu ard
- 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 hydrop lan­
ing). Using the system under these condi­
t ions could resu lt in a col lision.
- Switch adaptive cruise control off tempora­
rily when driving in turn ing lanes, on ex­
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the set speed when in these situat ions.
- The adapt ive cr uise control sys tem wi ll not
brake by itself if yo u put you r foot on the ac­
celerator pedal. Doing so can ove rride the
speed and distance regulation.
- When approach ing stationary objects such
as stopped traffic, adaptive cruise control
will not respond and braking g uard will have
limited function.
- The adapt ive cr uise control system and brak­
ing guard do not react to people, animals,
objects cross ing the road or oncoming ob­
jects.
- The function of the radar sensor can be af­
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
- Never follow a veh icle so closely that you
cannot stop your vehicle safe ly. The adap­
t ive cru ise control cannot s low or brake the
vehicle safely when you fo llow another veh i­
cl e too close ly. Always remembe r that the
automa tic brak ing funct ion c annot bring the
vehicle to a sud den or emergency stop un­
der these conditions.
- To prevent unin tended operation, always
switch ACC off when it is not be ing use d.
(D Note
The sensor can be disp laced by impacts or
damage to the bum per, whee l hou sing and
unde rbody. That could affe ct the adap tive
cruise contro l system and braking guard . Have
your authorized A udi dealer or authorized
Audi Service Facility c heck their function.
90
In curves
App lies to vehicles: wi th Aud i adapt ive cru ise contro l
Fig. 94 Example: dr iving into a cu rve
When dr iving into a curve c:::> fig. 94 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 braking by pressing
the accelerator peda l briefly .
Stationary objects
Applies to vehicles: wi th Aud i adap tive cr uise con tro l
Fig. 95 Example: object chang ing lanes and stationary ob ·
jec t
The adaptive cruise contro l system only reacts to
ob jects that are moving or that the system has
already detected as moving. For example, if ave­
hicle @, which has already been detected by the
adaptive cruise control, turns or changes lanes
and another stationary veh icle @ is located in
front of that veh icle, the system will not react to
the stat ionary vehicle.
Vehicles with manual transmission
App lies to vehicles: wi th Aud i adap tive cru ise contro l
The adaptive cru ise con tro l is available from the
2nd gear thro ugh the 6th gear in the c ustomary
RPM . ....

Audi adaptive cruise control and braking guard
You can set any speed between 20 mph and 95
mph (30 and 150 km/h).
I ndicator lamps and messages i n the instrument
cluster display inform you about the current sys­
tem status and settings .
Switching Audi adaptive cruise control on
11-Pull the lever toward you into posit ion (D
¢ fig. 97. ACC standby appears in the instru­
ment cluster display.
Setting the speed and activating regulation
.,.. To set the current speed, press the !SET ! button
¢ page 11, fig. 4. The set speed is shown in the
tachometer @ and is also shown b rief ly in the
display @¢
fig. 98.
Switching Audi adaptive cruise control off
.,.. Push the lever away from you into position @
until it clicks into place. The message
ACC off
appears.
@ Indicator lights
Ill-Adaptive cruise contro l is switched on. No
veh icles are detected up ahead . The stored speed
is mainta ined .
•- A moving vehicle is detected up ahead. The
adaptive cruise control system regu lates the
speed and distance to the moving vehicle ahead
and accelerates/brakes automatically .
•- When automatic braking is not able to keep
enough distance to a previously detected moving
veh icle up ahead, you must take control and
brake ¢
page 94, Request for driver interven­
tion .
© Display
If adaptive cruise control is not shown in the d is­
play, you can call it up with the
!RESET! button
¢page 23.
Based on the symbo ls in the display, you can de­
termine if the system is mainta ining a distance to
the vehicle ahead and what that distance is.
No vehicle -No vehicle ahead was detected .
White vehicle -A vehicle ahead was detected.
92
Red vehicle -Prompt for the driver to take action
¢page 94.
Both arrows on the scale © indicate the d istance
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 dis­
tance . For info rmation on changing the stored
distance, refer to¢
page 93. If the distance se­
l ected is too close or may soon become too close,
the arrows move into the red zone on the scale .
A WARNING
Improper use of the adaptive cruise contro l
can cause collisions, other acc idents and seri­
ous persona l injuries.
- Pressing the
!SET ! button when driving at
speeds below 20 mph (30 km/h), will auto­
matically accelerate the vehicle to 20 mph
(30 km/h), which is the minimum speed
that can be set.
@ Tips
-If you switch the ign it ion or the adaptive
cruise control off, the set speed is erased
from the system memory.
- The electronic stabilizat ion control (ESC)
and the anti-slip-regulation (ASR) are auto­
matically turned on when the adaptive
cruise control is turned on. Both systems
cannot be turned off if the adaptive cruise
control is turned on .
Changing the speed
Applies to veh icles: with Aud i adapt ive cru ise control
0
f
•
0
Fig. 99 Selector lever: ch ang ing th e speed

M N
0 l­oo
rl I.O
"' N
"' rl
Audi adaptive cruise control and braking guard
.. To increase or reduce the speed in increments,
tap the lever up or down .
.. To increase or reduce the speed quickly,
hold
the lever up or down until the red LED ® reach ­
es the desired speed¢
page 91 , fig . 98.
Following any changes, the new stored speed will
be disp layed briefly in the display@¢ page 91,
fig . 98 .
Interrupting cruise control
Applies to vehicles: with Audi adaptive cruise control
Fig. 100 Selector lever
Requirement : adaptive cruise control must be
switched on
¢ fig. 100 @.
Overriding cruise control
.. To accelerate manually, press the accelerator
pedal. The message
ACC override appears.
.. To resume adaptive cruise control, remove your
foot from the gas pedal. The system returns
again to the speed that was saved before.
.. You can save a new speed at any time by press­
ing the
I SET I button ¢ page 11 , fig . 4.
Canceling cruise control while driving
.. Move the lever into position @. The message
ACC standby appears. Or
.. press the brake pedal.
.. To resume the stored speed, move the lever in­
to posit ion
@ .
A WARNING
Never resume the stored speed if the speed is
too high for p revailing road, traffic or weather
conditions.
Setting the distance
Applies to vehicles: with Audi adaptive cruise control
Fig. 101 Selector lever: sett ing the distance
.. Tap the switch to display the current set dis­
tance
¢ fig . 101 .
.. 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 instrumen t cluster display .
When approach ing a mov ing vehicle up ahead,
the adaptive cruise control system brakes to
match that object's speed and then maintains
the stor ed distance .
If the vehicle ahead acceler­
ates, adaptive cruise control will also accelerate
up to the stored speed.
T he hig her the speed, the greater the distance in
yards (meters) ¢&. .The
Distance 3 setting is
recommended .
T he distances provided are specified values . De­
pending on the driving s ituation and the how the
vehicle ahead is driving, the actual distance may
be more or less than these target distances .
T he various symbols for the time increments ap­
pear briefly in the information line @¢
page 91,
fig. 98
when you change the settings.
,::::::,_,::::::, ___ Distance 1: This setting corresponds
to a distance of 92 feet/28 meters when travel­
ing at 62 mph (100 km/h), or a time interval of 1
second.
,::::::, __ ,:::::, __ Distance 2: This setting corresponds
to a distance of 118 feet/36 meters when travel­
in g at 62 mph (100 km/h), or a time interval of
1.3 se conds. ..,.
93

Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to vehicles: with Audi adaptive cruise co ntrol
F ig. 103 Instrument cluste r: app roac h warn ing
Braking guard uses a radar sensor. It also func­
tions within the limits of the system when adap­
tive cruise control is switched off .
What can Audi braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes suddenly
or if your own vehicle is traveling at a high speed
and approaching a vehicle up ahead that is mov ­
ing more slowly . Braking guard does not react if it
cannot detect the s ituation .
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 d isplay comes on .
- The
approach warning is given when a detected
vehicle up ahead in your lane is moving much
more slowly than you are or if it brakes sharply .
When this warning is g iven, it may only be pos­
s ible to avoid a co llision by swerving or braki ng
sharply. The indicator light . and indicator in
the display will warn yo u about the danger
c> fig. 103. You wi ll also hear an acoust ic signa l.
If you do not react fast enough or do not react at
all to the situation, Braking guard will intervene
by braking and the message
braking guard inter-
~ vention will appear.
0 l-oo
rl I.O
"' N "' 11
This is not available in som e count ries. rl
- If a collision is imminent, the system wi ll first
provide an
acute warning by briefly and sharply
app ly ing the brakes.
- If you do not react to the acute warning, brak­
ing guard can brake within the limits of the sys­
tem. This reduces the vehicle speed in the event
of a collision.
- At speeds under 20 mph (30 km/h), the system
can initiate a complete deceleration shortly be­
fore a collisionl).
- If the braking guard senses that you are not
braking hard enough when a collision is immi­
nent, it can increase the braking force.
Which functions can be controlled?
You can switch braking guard and the distance/
approach warning on or off in the radio or MMI
c> page 96, Settings in the radio/MM! .
A WARNING
-
Lack of attention can cause collisions, other
accidents and serious personal injuries. The b raking guard is an ass ist system and cannot
prevent a collis ion by itself. The driver must
always intervene. The driver is always respon­
sib le for b ra kin g at the correct 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 com­
p lete control whenever necessary. Always
keep t he safe a nd legal distance between
your vehicle and vehicles up ahead.
- Braking guard works within limits and will
not respond outside the system limits, for
examp le when approaching a stopped vehi­
cle or stationary obstacle (end of a traffic
jam or vehicle that has broken down in traf­
f ic).
- Always remember that the radar sensor for
the braking guard works on ly w ithin defined
detection and range limits that may prevent
the proper detection of other vehicles.
- The radar sensor's funct ion and range can
be reduced by ra in, snow and heavy spray.
Moving vehicles up ahead may not be
,.
95

Smart Technology
The following situations are exceptions where it
may be usefu l to switch on sport mode to allow
the wheels to spin : -
Rocking the vehicle to free it when it is stuck
- Driv ing in deep snow or on loose ground
- Dr iv ing with snow chains
Sport mode on ESC/ASR off Sport mode off or
ESC /ASRon
Behavior
The ESC and ASR stabiliza- The stabilization funct ion is The full stabilization func-
tion fu nct ions are limited not
available¢ ,&.. ESC and
tion of the ESC and ASR is
¢ ,&. .
ASR are switched
off. available again.
Operation Press the I!> OF F! button Press and hold the I!> OF FI Press the I!> OF F! button
briefly . button longer than 3 sec-again.
onds .
Indicator II turns on. JI and lf'lii•li~ turn on. II turns off or II and
lights lf'lii•l~~ turn off.
Driver mes- Stabilization control (ESC): Stabilization control (ESC): Stabilization control
sages Sport. Warning! Re stricted off. Warning! Restricted (ESC):
On
stability stability
It is only possible to turn off the ASR up to 30
mph (SO km/h) for veh icles wi th front whee l
drive . At about
45 mph (70 km/h) it automatica l­
ly turns on again. It is possible to turn
off the
ASR at any speed for vehicles with all whee l
drive.
A WARNING
-
You should only sw itch sport mode on or
switch ESC/ASR
off if your driving ab ilities and
road condit io ns perm it .
- The stabilization function is limited when
sport mode is switched on. The dr iv ing
wheels could spin and the veh icle cou ld
swerve, especially on slick or slippery road
surfaces.
- There is no vehicle stabilization when ESC/
ASR are switched
off.
(D Tips
ESC/ASR cannot be switched off or sport
mode cannot be switched on when cruise con­
trol or adaptive cru ise control* is sw itched on .
172
Braking
What affects broking efficiency?
New brake pads
During the first 250 miles (400 km), new brake
pads do not possess their full braking effect, they
have to be "broken in" first¢,&. . You can com­
pensate for this slightly reduced braking power
by pushing harder on the brake pedal. Avoid
heavy braking loads during the break-in period.
Operating conditions and driving habits
The brakes on today's automobiles are still sub­
ject to wear, depending largely on operating con­
ditions and driving habits~,&. . On vehicles that
are either driven most ly in stop-and -go city traf­
fic or are driven hard, the brake pads should be
checked by your authorized Audi dealer more of­
ten than specified in the
Warranty & Mainte­
nance booklet .
Failure to have your brake pads
i nspected can result in reduced brake perform­
ance .
On steep slopes, you should use the braking ef­
fect of the engine . This way, you prevent unnec­
essary wear on the brake system. If you must use
your brakes, do not hold the brakes down contin­
uously. Pump the brakes at intervals.

Operating noise
Noises may occur when braking depending on the
speed, braking force and outside conditions such
as temperature and humidity.
Effect of water and road salt
In certain situat ions, for example after driving
through water, in heavy ra in, after overn ight con­
densat ion or after washing your car, the braking
effect can be reduced by moisture or ice on the
brake rotors and brake pads. The brakes must be
dried first with a few carefu l brake applications.
At higher speeds and with the w indshie ld w ipers
turned on, the brake pads press against the brake
rotors for a short amount of time. This occurs at
regular intervals without the driver noticing and
provides for better brake response time under
wet conditions.
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered road
and the brakes are not used. Likewise, you clean
off accumulated salt coating from brake discs
and pads with a few cautious applications of the
brake ¢.& .
Corrosion
There may be a tendency for dirt to build up on
the brake pads and corros ion to form on the discs
if the car is not driven regularly or only for short
tr ips with little use of the brakes.
If the brakes are not used frequently, or if corro­
sion has formed on the discs, it is advisab le to
clean off the pads and discs by braking firmly a
few t imes from a moderately high speed¢.&.
Faults in the brake system
If you should notice a sudden increase in brake
pedal trave l, then one of the two brake circuits
may have failed
c:> .& .
Low brake fluid level
Malfunctions can occur in the brake system if the
brake fluid level is too low. The brake fluid leve l is
~ monitored e lectronically.
i? co ,...., \!) ..,.,
N ..,., ,....,
Smart Technology
Brake booster
T he brake booster increases the pressure that you
generate w ith the brake pedal.
It works on ly
when the engine is running
.c:> .&
Brake lining wear status
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
through the openings in the wheel. If necessary,
the wheel may be removed for this inspection
c:> page 226, Replacing wheels.
_8 WARNING "'---
-New brake pads don't have the best stop­
pin g power and must be "broken-in" during
the initial 250 miles (400 kilometers). You
can compensate for this by press ing the
brake pedal more firmly. This also applies
later when new pads are installed.
-
- You shou ld perform braking maneuvers for
the purpose of cleaning the brake system
only if road conditions permit. Other road
users must not be put at r isk -you may
cause an acciden t!
- Before descending a steep grade, reduce
speed and shift transmission into a lower
gear or lower driving range. Do not ride the
brakes or hold the pedal down too long or
too often . This could cause the brakes to get
hot and diminish braking efficiency.
- Do not "ride the brakes" by resting your foot
on the pedal when you do not intend to
brake. This may cause the brakes to over­
heat, premature wear and increased stop­
p in g distance.
- Under certain cl imatic and operat ing condi­
tions such as passing through water, dr iv ing
in heavy rain or after washing the vehicle,
the effectiveness of the brakes can be re­
duced. In winter, ice can accumulate on the
b rak e pads, linings, discs and drums. Care­
fully apply brakes for a test. Brakes will dry
and ice coatings will be cleaned off after a
few careful brake applications.
- Driving for an extended period of time on
salt -covered roads wi thout using your
brakes can a lso affect braking efficiency .
173

Smart Technolog y
Clean off accumulated salt coating from
brake discs and pads w ith a few carefu l
brake applications .
- If you damage the front spoiler, or if you in­
stall a d ifferent spoiler, be sure the air flow
to the front brakes is not obstructed. Other­
wise the brake system could overheat reduc ­
ing the effectiveness of the entire brake sys­
tem.
- Failure of one brake c ircuit will impair the
braking capab ility result ing in an increased
stopp ing distance. Avoid driving the veh icle
and have it towed to the nearest autho rized
Audi dealer or qualified workshop.
- Never let the vehicle ro ll to a stop with the
engine shut off .
- If the brake booster is not work ing, the
brake pedal must be pressed considerably
harder to make up for the lack of booste r as­
sistance .
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps the
driver when steering.
Power steering adapts electronically based on
the vehicle speed .
Indicator lights and me ssages
• Stee ring defe cti ve! D o not dr ive vehicle!
If this indicator light tu rns on and stays on and
this message appears, the power steering may
have fai led .
Do
not contin ue driving. See yo ur authorized
Aud i dealer o r a qua lified repair facility for assis­
tance.
l ;r- ij Dynami c steering : S ys te m fault! You can
c on tinu e dr iving
If the indicator light turns on and the message
appears, the steer ing may be more difficult to
move or mo re sensitive than us ual. The steer ing
wheel may also be at an ang le when dr iv ing
straight.
174
Drive slowly to your authorized Audi dea ler or
qualified workshop to have the ma lf u nction cor­
rected.
' -r, ij Dynamic ste ering: i nitializing
If this driver message appears and the indicator
li ght is flashing on the i nstrume nt pane l, dynam­
i c steer ing* is being rein it ia lized . After sta rting
the engine, the steer ing whee l w ill move sligh tly.
Re-initialization might be necessary if the steer ­
ing whee l was moved hard to th e left and right
whi le the vehicle was not moving . The display
goe s out as soon as initiali zation is comp lete.
A WARNING
,-
H ave the dynamic steering* system malfunc-
tion repaired as soon as possible by an author ­
ized Audi dealer or qualified workshop - r isk
of accid ent!
@ Tips
- If the . or 'T fl indicator light only stays on
for a short time, you may cont inue driving.
- The dynamic steering* stab ility system s are
not availab le in the event of a system mal­
function .
- For add itional information on dynamic
steering*, refer to<=> page 102 .
Driving with your quattro
Applies to vehicles : wit h all -w hee l drive
With all-wheel drive , all four wheels are driven .
General information
With a ll-wheel drive, power is distrib uted to a ll
fo ur wheels . This happens automatica lly depend­
i ng on your driving style and the road conditions
at the t ime . See also <=> page 1 70 .
A center d ifferential distributes the driving power
variab ly to the front and rear ax le. It works to­
gether w ith select ive whee l torque control , which
activates when drivi ng throug h curves
¢ page 171 . W ith the sport diffe rential*, power
distribution to the rear wheels is var iable and can
be ad justed with d rive select ¢ page 102 .
1111-