technical data AUDI A5 COUPE 2011 Repair Manual

Adaptive cruise control -____________ __._ __ _
& WARNING (co ntinued )
• Always turn off adaptive crui se control when entering turn
lanes, highway ex it lanes and con struction zones or similar situa­
tions because the vehicle will automatically accele rate to the
stored speed .
• Never rest your foot on the accelerator pedal, especially when
the adaptive cruise control is being u sed because doing so will
override the braking function and prevent the brakes from being
applied by the system when it detect s a situation when the brake s
must be applied.
• Alway s remember that the adaptive cruise control has limits -
it does not react when you drive towards an obstacle or something
else on or near the road that is not moving, such as vehicles
stopped in a traffic jam , a stalled or disabled vehicle .
• Always remember that the adaptive cruise control cannot
detect a veh icle th at i s driving towards you in your traffic lane and
that it cannot detect narrow vehicles such as motorcycles and bicy­
cles .
[ i] Tips
• For safety reasons, the stored speed is deleted when the ignition
is turned off.
• The Electronic Stabilization Program (ESP) and the Ant i-Slip Regu ­
la tio n (A SR) c anno t be de activated when the adaptive cruise cont rol
is sw itched on .
If the ESP and the Anti -S lip Regulation (ASR) has been
de activ at ed an d yo u the n switch on the ad apt ive cruise cont rol, the
ESP fu nction w ill also be activated automatically.
• Dam age cau sed by accide nts (e.g. if the vehicle is dam age d whe n
park ing) can affect the rada r sensor settings. This can cause t he
sys tem to malfunc tion or switch off comple tely.
• The radar sensor cover is heated. In w inter conditions, you should
st ill ch eck befor e dr iv in g to make s ure i t is free of ice and s now. If
necessary, clean the area nea r the rada r sensor carefully=>
page 122,
fig. 112 .
Controls and equip ­
ment Safety first
•
To ensure that the radar sensor is not blocked , fore ign objects
(e .g. st ickers, add -on par ts) m ust no t cover the are a ne ar th e radar
sensor=>
page 122, fig . 112 . The area near t he radar sensor must not
be painted, either .
• For Declaration of Compliance to United States FCC and Industry
C an ada regula tions =>
page 34 3. •
App lies to ve hicle s: with adap tiv e crui se contro l
How does adaptive cruise control work?
Vehicles traveling ahead are de tec ted w ith the aid of a
ra dar sens or.
I;= =;. =============== -.~
~
ll!
Fig. 113 Radar sen sor
mea sureme nt r an ge
A radar sensor is buil t into the front of the vehicle=> fig. 113, which
is subject to ce rtain system limits =>
page 133 . Stationary o bjects are
not taken into cons iderat ion. The system is intended to measure the
distance to reflective s urfaces. The system responds after the
dis tance measuremen t has taken place. If a meas urement is not
poss ible, the system does not respond.
Open road
When the road is clear, the adaptive c ruise contro l works like cr uise
cont rol. It ma inta ins a constant target speed specified by the drive r.
~
Vehicle care Technical data

Adaptive cruise control Ill ____________ ____,___ __ ____.
App lies to veh icles : w ith a dapt ive cruise contro l
How is the speed stored?
Fig. 1 15 Contro l
l eve r: S tori ng s pee d
With th e sys te m switched on the speed is stored as follows:
- Drive at the speed you want . The speed must be between
20 and 95 mph (30 and 150 km/h) .
- Press the
!SET I button ~ fig . 115 to store the desired
speed .
After the ( SETI button is released, the current speed is stored and
m ain tained .
The saved speed is now shown in th e LED d isplay in the speedom et e r
by one or two illuminated red light diodes=>
page 129. At the same
time, the saved speed is a lso shown fo r a short time in the Info rma­
tion
lin e~page 131 .
(I) Tips
For safety reasons, the stored speed is deleted when the ignition is
turned off .•
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration
Applies to vehicles : w ith ada ptive cru ise cont ro l
Changing stored speed
The speed can be changed without touching the acceler ­
ator or brake pedal.
Increasing speed
,... 0
~
ill
Fig . 1 16 Con trol
l e ver: Chan ging spee d
- Press the lever briefly upwards 0 ~ fig. 116. USA
models : the speed increases by about 2.5 mph . Canada
models : speed will increase by one mark on the speedom­
eter scale .
- Press the lever upwards
0 and hold it . As long as you hold
the control switch down, the light diode display in the
speedometer LED display in the speedometer moves
forward and the speed is increased .
Reducing speed
- Press the lever downwards briefly Q. USA models : the
speed decreases by 2 .5 mph . Canada models: speed will
decrease by one mark on the speedometer scale . _,.
Vehicle care Do-it-yourselt service iTechnical data

____________________________________________ A_ d_ a.:.p _t_ i_ v _e_ c_r_u _ i_ s _e_ c_o_ n_ t_r _o _l __ ffl'II
A ppli es to ve hicl es: wi th a daptive cruise cont rol
How is the distance (time interval) set?
Distance con be set in four stages.
m 0 [;; ,.: 00 a,
Fig . 118 Control
l ever : Sett ing distance
-Push the slider switch once to the right 0 or to the left Q
~ fig. 118. The distance currently set is shown for 3
seconds in the instrument cluster display.
- Push the slider switch again to the right 0 or to the left
Q to increase or to decrease the distance by one step.
Select distance
The distance at which the adaptive cru ise control follows a vehicle in
front is determined by
time intervals . A time interval to a vehicle in
front is estab lished and maintained. This produces a speed-depen­
dent interval. The higher the speed, the greater the safety interval in
yards (meters) ~
&-
Th e distances provided are specified values. These distances may
exceed or fall short of these target distances, depending on the
driving situation and the driving style of the vehicle ahead.
Distance 1 ~-~ ---
Thi s sett ing is ideal for brisk driving i n bumper-to-bumper traffic. The
distance is one second. This is the equivalent of, for instance,
• a distance of 36 feet (11 meters) at a speed of 25 mph (40 km/h)
Controls and equip ­
ment Safety first
•
a distance of 72 feet (22 meters) at a speed of 50 mph (80 km/h)
• a dist ance of 108 feet (33 meters) at a speed of 75 mph (120
km/h)
Distance 2 ,;::::,-- ~--
This setting is ideal for "keeping pace" comfortably in bumper-to­
bumper traffic. The distance is 1.3 seconds. This is the equ ivalent of,
for instance,
• a distance of 46 feet (14 meters) at a speed of 25 mph (40 km/h)
• a dista nce of 95 feet (29 meters) at a speed of 50 mph (80 km/h)
• a distance of 144 feet (44 meters) at a speed of 75 mph ( 120
km/h)
Distance 3 ~--- ~-
This setting is idea l for "keeping pace" in bumper-to-bumper traffic
and is the equivalent of the generally recommended distance that is
"half of the speedometer speed" . The distance is 1 .8 seconds. This is
th e equivalent of, fo r instance,
• a distance of 66 feet (20 meters) at a speed of 25 mph (40 km/h)
• a distance of 131 feet (40 meters) at a speed of 50 mph (80 km/h)
• a distance of 197 feet (60 meters) at a speed of 75 mph (120
km/h)
Distance 4 ~---- ~
This sett ing is ideal for secondary road traffic. The distance is 2.3
seconds. This is the equivalent of, for instance,
• a distance of 82 feet (25 meters) at a speed of 25 mph (40 km/h)
• a distance of 167 feet (51 meters) at a speed of 50 mph (80 km/h)
• a distance of 249 feet (76 meters) at a speed of 75 mph (120
km/h)
You can set the way your vehicle performs in ACC mode when acce ler­
ating and braking in the radio or MM !* ~
page 133. Depending on
the driving program and distance you select , you r veh icle's accelera-
tion and braking can range from dynam ic (1) to comfortable (5) . _,.
Vehicle care Technical data

____________________________________________ A_ d_ a.._p _t_ i_ v _e_ c_r_u _ i_ s _e_ c_o_ n_ t_r _o _l __ _
@ Display in the instrument cluster
In disp lay area @ information from the navi gation system * and the
tr ip computer is displayed in add it ion to informa tion about adaptive
c ruise contro l.
You can sele ct among the differe nt info rmatio n by repeated b rief
taps on the
I RESET! button on the winds hield w iper lever => page 26,
"Operat io n".
© Status indicator
Th e info rmation i n area © is no t disp layed per manently. Infor mat ion
is d isplayed o nly if yo u set or c hange the speed setting, change the
ti me in terva l, when messages a re displayed or if the ad apt ive cru ise
cont rol is turned off for safety reasons. •
Appli es to vehicles : w ith a daptive cruise c on tro l
Speedometer and indicator light display
----
- -
- -
@ ®
Desired speed
- -
--
Fig . 120 I nstru ment
cl uste r: Indicator light
T he desired speed set by the driver is displayed by a red LED in the LED
disp lay in the spee dometer.
If the desi red s peed was set be twee n two lines o n the speedo mete r
using the
[ SET J button, the two closest light diodes will come on
=>
page 12 8, fig. 119.
Controls and equip ­
ment Safety first
T
he system allows only speeds from 20 to 95 mph (30 to 150 km/ h)
t o be se t. T his spee d range is f aint ly ill um inat ed in t he s pee dome ter
(LED lights) .
Indicator lights (symbols)
• © Open road: The indicator light shows t hat adaptive cruise
co ntrol is a ctive and t hat no objec t is ahe ad of the vehi cle. A sto red
speed req uested is maintained.
• @
Driving in traffic : The indicator l igh t ind icates th at an object
has been detected traveling in front . Your speed is ad justed according
t o the spee d of t he vehicle in front. The adaptive c ruise con trol accel­
erates and bra kes au tomatically w it hin the system's operat io n
parame ters.
• ©
Driver intervention prompt : The red flashing warning light
me ans
Request for driver to as sume control. You as the drive r m ust
slow t he ve hicle w ith the foot brake . The symbo l tells yo u that the
adaptive cruise contro l is not able to s low the vehicle down enough to
keep a enough distance to the vehicle in front o f you. An war ning tone
wi ll also so und when the symbol ap pears. Fo r more informat ion
abou t the driver intervent ion prompt=>
page 132 .
W Tips
• If you use the ac cele rator to go fa ster than the speed of the object
ahead of you, the
driver intervention prompt will not be accompa ­
nied by a war ning signal.
• If the speed you p reviously set is exceeded, the ind icator light in
t he s peedometer w ill swit ch off .•
Vehicle care Technical data

Adaptive cruise control -____________ __,:_ __ _
Appli es to ve hicl es: wi th a daptive cruise cont rol
System status indicator
The text messages and symbols shown in this area of the
display are not displayed permanently .
Time intervals (such as e::::, ____ e::::,)
Fig. 122 System
status indicator
The different symbols for the time intervals appear if you change the
sett ings => fig. 122 .
Th e text message ... (three white dots) appears if a setting cannot be
implemented with the operating lever. The following are possible
reasons:
• If you pull the control lever towa rds you to resume speed but no
requested speed was set .
• If you push the lever up to increase (or down to reduce) speed
when no speed has been set previously.
• If you push the lever up to increase (or down to reduce) speed and
this speed is outside the range from 20 to 95 mph (Canada mode ls:
30 to 150 km/h) .
ACC functionality Limited
The text message ACC functionality limited appears when the ACC
system does not detect any objects over an extended time period. For
the time being, the distance to veh icles up ahead is not being
Controls and equip ­
ment Safety first
controlled
. The ACC system is not switched off, so increased alertness
is required. The following may be reasons for the text message ACC
Functionally limited:
• The ACC sensor is dirty. The ACC system is not reacting, or is not
reacting correctly, to vehicles traveling ahead.
• It is possible that you are driving on a road with very light traffic
without anything at the s ide of the road (e .g . guard rails, traff ic s igns,
trees). As soon as a vehicle is detected by the system again, it returns
t o its contro l range and the text message disappears.
The ACC sensor is located in the r ight front trim grille=>
page 122,
fig. 112. If there is a loss of operation due to heavy contamination,
this area should cleaned to restore proper operat ion .
ACC not available
The text message ACC not available appears, for examp le, if the
t empe rature of the brakes is excessive. Adaptive cruise control is
temporarily not available. A warning tone sounds as a rem inder .
ACC not available!
The text message ACC not available! appears in the event of a
ma lf unct ion. Adaptive cruise control is turned off. A warn ing tone
sounds as a reminder . Have the system inspected by a qualified deal­
ersh ip.
ACC sensor blocked !
The text message ACC sensor blocked! appears when the ACC system
can no longer guarantee safe detection of objects. Adaptive cruise
control is turned off. A warning tone sounds as a reminder.
To decide whether it is necessary to switch off the ACC (ACC sensor
blocked
!) or if it is only a temporary condition (ACC Functionally
limited), the system w ill also takes into consideration the outside
temperature and/or the windshield wiper operation .
Th e ACC sensor is d irty or blocked (e.g. leaves, snow).
The sensor should be cleaned to restore prope r sensor funct ion
=>
page 122, fig. 112.
Vehicle care Technical data

Adaptive cruise control ml ____________ __._ __ _
• A red vehicle is shown in the instrument cluster display
=>
page 132, fig. 123.
• The text
DISTANCE! appears in the status line .
• The indicator light in the Instrument cluster blinks red .
• A warning tone sounds.
[I) Tips
• If the adaptive cruise control initiates brak ing, the hydraulic brake
system is under pressure . Therefore, the brake pedal distance is
shorter and the pedal "feels" harder .
• Adaptive cruise control is switched off after press ing the foot­
brake . The speed saved up this point can be resumed.
• To resume the saved speed, release the brake pedal and press the
control lever=>
page 126, "Turning adaptive cruise control off
temporarily ".
• If you use the accelerator to go faster than the speed of the object
ahead of you, the
driver intervention prompt will not be accompa­
nied by a warn ing signal.
• If the speed you previously set is exceeded, the indicator light in
the speedometer will switch off.•
Applies to ve hicle s: with ad aptive cru ise co ntro l
MMI settings
Individual settings for adaptive cruise control can be
selected in the fv1fv1I*.
Settings for the driving program can be adjusted individually
to the particular user and saved in the MMI*.
- Select: [CAR] function button
> Adaptive Cruise Control >
Driving program .
Controls and equip ­
ment Safety first
Setting the driving program
In
the driving program menu you can adjust the character istics of
adaptive cru ise control to what you want using
dynamic , standard or
comfort.
Saving settings
Your individual settings are automatica lly saved and assigned to the
remote control key being used (remote key storage) . If the key is
given to another person, the saved settings remain as they are .•
System limitations
App lies to ve hicles : w it h ada ptiv e cr uise cont ro l
General information
Some driving situations which affect the function of the
radar sensor are described below.
When driving, the adaptive cru ise contro l is governed by physical and
system-specified limits. Also, under certain circumstances, the ACC
system may react unexpectedly or late from the driver's point of view.
Therefore, a lways be attentive and intervene, if necessary:
• when driving around curves=>
page 134
• when vehicles in front are not in line with your vehicle=> page 134
• when other ve hicles are changing lanes=> page 134
• when other veh icles are difficult to detect=> page 135.
& WARNING
The radar sensor's vision can be reduced by rain, snow and heavy
spray . This can result in vehicles driving ahead being inadequately
detected or , in some circumstances , not detected at all. If neces­
sary, take action yourself!•
Vehicle care Technical data

Adaptive cruise control Ill ____________ ____,___ __ ____.
App lies to ve hicles : with a daptiv e cr uise c ontro l
Vehicles that are difficult to detect
OJ
Fig .128 Two-wheeled
vehicle driving ahead
Vehicles that are difficult to detect, e.g . two-wheeled vehicles ahead,
vehicles with h igh ground clearance, protrud ing load, are frequently
detected late or not at all, under some circumstances .•
A ppli es to ve hicl es: with ad apti ve c rui se cont rol
Stationary vehicles
ij - .--......i:;1 ... _;1,,1
Contro ls a nd e quip ­
m en t
u
Fig. 129 Turning and
stationary ve hicle
Vehicle OP-eration
Fig. 130 Sheering out
and stationary vehicle
If a vehicle that has been detected by the ACC system turns off or
sheers out, and there is a stationary veh icle ahead of that vehicle, the
ACC system does not respond to the stationary vehicle=> fig. 129 and
=> fig. 130. •
Audi braking guard
Applies to ve hicles: w ith ada ptiv e cr uise con trol
Description
Audi braking guard warns you of a threatening collision
with a vehicle ahead .
N
I
Fig. 131 Display in
the in strum ent cluster ...
Vehicle care Do-it-yourselt service iTechnical data

____________________________________________ A_ d_ a.._p _t_ i_ v _e_ c_r_u _ i_ s _e_ c_o_ n_ t_r _o _l __ ffl'II
A pp lies to ve hicl es: wi th a daptive cruise co ntro l
Settings in the MMI
The settings of the Audi braking guard are performed in
the MMI* .
Settings regarding the system and the early warning can be
adjusted to the respective user and saved in the MM!*.
Switching the system on and off
-Select: [ CAR] function button > Audi braking guard .
-Select System On to switch the system on or Off to switch
the system off .
Switching the early warning on and off
-Select: [CAR]> Audi braking guard.
-Select Early warning On to switch the acoustic and optical
warning on or Off to switch the system off.
[I] Tips
When handing over the keys to another person, the previous settings
are adopted if the Audi braking guard is activated=>
page 47 . •
A pplie s to v ehicl es: w ith adaptiv e c rui se co ntro l
Driver's information in the instrument
cluster display
braking guard activated
This driver's informat ion appears when a brake jolt has been carr ied
out due to an acute warning.
Controls and equip ­
ment Safety first Braking guard
off
This driver's information appears when the system has been deacti ­
vated v ia the
MMI* . Furthermore the information appears each time
shortly after the beginning of the journey when the system is
switched off .
This driver's information also appears when the system is not ava il­
able due to a malfunction or if you switch the ESP/ ASR off
=>
page 236 . In this s tate the system no longer warns of a pend ing
collision. •
Vehicle care Technical data

_________________________________________________ A_ u_d _ i_ s_id _ e_ a_s _s_ i_s _t __ _
Deactivating
- Pre ss th e b utton again . Th e ind icator light on the button
goes o ut.
The system works at speeds faster than 19 mph (30 km/h) .
& WARNING
• Improper reliance on the side assist system can cause collisions
and seriou s per sonal injury:
- Never rely only on side assist when changing lanes.
- Alway s check rear view mirrors to make sure that it is safe to
change lanes.
• Side assist cannot detect all vehicles under all condition s­
danger of accident!
• Side a ssist cannot detect vehicle s
in time to alert you when
they approach from behind at very high speed , or fall drop bac;k
very quickly .
• The radar sensor's
vision can be reduced o r entirely blocked by
rain, snow, and heavy spray . Thi s can result in side a ssist not
adequately detecting vehicles o r, in some cases , not detecting
them at all. Always keep an eye on the direction you are traveling
and the relevant area around the vehicle.
• Plea se note that side assi st indi cates there are approaching
veh icles, or vehicles in your blind spot, only after your vehicle has
reached a driving speed of at lea st 19 mph (30 km/h).
• Side assist signal does not work around tight corners (turning
radius le ss than 328 feet or 100 m).
• Side assist is no replacement for the driver's full attention. The
driver alone is respon sible for lane changes and similar driving
maneuvers. Always keep an eye on the direction you are traveling
and the relevant area around the vehicle .
Controls and equip­
ment Safety first
0 Note
• T
o ens ure t hat you do not adve rsely affec t side assist, do not blo ck
the area on the rear bumper where the radar sensors are located with
foreign obje cts (s uch as stickers or bicy cle ra cks).
• Make s ure that the s ignal light on the outside mirror is not
blo cked by st ickers or o ther ite ms.
W Tips
• Side assist a utoma tically deact iva tes if it de tects that the rada r
sensors are blocked=>
page 145. The indicator light on the button
goe s out.
• Th e area on the bumpe r w here the ra dar sensors are located must
c o nsistent ly remain free of snow, i ce, a nd heavy soiling so tha t side
assist can funct ion p roper ly. Follow the add itiona l notes on
=>
page 1 45 .
• Additiona l tint ing on the front si de windows can make it ha rder to
see and co rrec tly un ders t and t he sig nal ligh t on the outs ide m irro r.
• F or Declaration of Compliance to United States FC C and Industry
Cana da regulat ions=>
pag e 343. •
Applies to veh icl es: w ith s ide ass ist
Sensor detection area
Vehicle care
Fig . 135 Schem atic
ill ustration: Se nsor
detectio n area
~
Technical data

___________________________________________________ A_ u_d_ i_s _ i_d _e_ a_ s _ s_is _ t _ __.1111
A pplie s to vehicles : wi th s ide ass ist
Driving situation: Fast approaching
vehicles
Fig. 136 Side assist: Fast approaching vehicles
(D Signal on outside mirror does not light up
No vehicle was detected by the sensors . The signal on the outside
mirror does not light up~
& in "Safety tips" on page 145.
@ Informational stage signal lights up
A fast approaching vehicle· in the left-hand lane for example· was
detected by the sensors . Although this vehicle is sti ll far away, it
should be taken into account if you were to change lanes, due to the
considerable difference in speed . The informational stage signal on
the outside mirror lights up~
page 140.
Contro ls a nd e quip ­
m en t Vehicle
OP-eration
® Alert stage signal flashes
If you act ivate your turn signa l in driving situation @, the signa l
br iefly f lashes repeatedly . Side assist is alert ing you to a vehicle that
you may not have noticed .
[I) Tips
• The faster a vehicle approaches from the rear, the sooner the
signal on the outs ide mirror l igh ts up . S ide assist will signal, at the
latest, when a detected vehicle enters your "blind spot".
• Whe n veh icles approach very quickly, chang ing lanes can be
dangerous even if the signal on the outside mirror does not light up. •
App lies to vehicles : with side assis t
Driving situation : Slowly approaching
vehicles
Fig. 137 Side assist: Slowly approach ing vehicles and vehicles in your blind
~ot
~
Vehicle care Do-it-yourselt service iTechnical data