2013 AUDI A7 brake sensor

14 Instrum ent s and w arn ing /indic ato r light s
tm
USA models:
!!
Battery in remote control key
Ant i- lock b raking system (ABS)
¢ page 3 3
defective ,/
¢ page20
l:i
Defective light b ulb warn ing
¢page 22
I [I]
Canada model s:
Anti-lock b raking system (ABS)
II
Rear fog light(s)
defective ,/
¢page22
I ¢page20
•
Worn brake pads
II
Headlight range control
¢page22
¢ page 21
- -
:rm
Electromechanical parking brake
rll
adaptive light *
¢page22
¢page 78
g
Tire pressure monitoring system
m
Light-/rain sensor faulty
¢page 22
,I
¢page264
•
Audi active lane assist*
lliii~1 Tire pressure monitoring system ¢page96
¢page264 Transmission (tiptronic ®)
Electronic power contro l ,/
rm
Im
¢page 114
¢ page 21
R1
Transmission
I.
Malfunction indicator Lamp (MIL)
- S tronic® ¢page 114
,I
¢page21
•
Electronic steering column lock
.,
Engine speed limitation ¢page
18
¢ page 21
.,
Engine start system
•
Engine oil level ¢page
18
¢page 18
£1,ij
Electromechanical steering ./
•
Engine oil sensor ¢
page 201
¢ page 21
•
Air suspension*
-1
Battery ¢page
19
¢page 17
•
Sport differentia l*
Ill
Tank system ¢page
23
¢page22
11
Rear spoiler
•
Windshield washer fluid level ¢page
198
¢page22
m
Windshie ld wipers
¢ page22
!I
Remote control key
¢page 75
m
Remote contro l key
¢ page 78

20 Instruments and warning/indicator lights
If the battery te rm inals were disconnected
and re-connected, the vehicle was j ump sta rt­
ed or the batte ry is very weak, the ESC sensor
system goes through a learning process for
the first few yards. The warning/ind icator
light illuminates . The war ning/ indicato r light
goes out as soon as the learning proc ess is
comp lete .
For more informat io n about t he ESC
¢ page 196.
ABS/( @) Anti-lock braking system (ABS)
This warning/indicator light monitors the ABS
and the electronic differ ential lock (EDL).
The warning/indicator light E (USA mod­
e ls)
;£1 (Canada mode ls) will come on fo r a
few seconds when the ignition is switched on.
The light will go out after an a utomat ic chec k
se quence is completed .
There is a malfunction in the ABS when :
-The warning/ indicator lig ht d oes not ill umi ­
nate whe n you switch the ign ition on.
- The wa rning/i ndicator lig ht does not go out
after a few seconds .
- The warning/indicator lig ht illumi nates
wh ile driving.
T he ESC ind ic a tor light a lso ill umin ates if
the re is a mal func tion in the A BS. T he mes ­
sage
Stabilization control (ESC/ABS ): Fault!
See owner's manual
a lso appears in the in ­
strument cluster disp lay and a warning tone
s o unds .
The brake system will still respond even
without the assistance of the ABS system .
See your authorized Audi dealer as soon as possible to restore full braking performance.
For more informat io n regarding the ABS
¢ page 196.
Malfunction in the brake system
If the brake wa rn ing light ¢ page 15 and the
ABS warning ill uminate
together there may be
a ma lfunction in the ABS, and there may also
be a ma lf u nct ion in the brake system itself
c::> /1. . The ABS will not work and you will no- tice a change in braking respon
se and per­
formance .
In the even t of a malfunction in the brake
system
t he warning/ind ic at or ligh t 11111
(U SA mode ls)/ . (Canada models) in the in ­
str ument cl uster flas hes
c::> page 15 .
Malfunction in the electronic differential
lock (EDL)
The E DL works toge ther w it h the AB S. T he
ABS wa rnin g light wi ll come on if there is a
malfu nction in t he EDL system
c::> page 196.
See your author ized Audi dealer as soon as
poss ib le .
A WARNING
-- If the E (USA mode ls)/ rl] (Canada
mo dels) warning light does not go ou t,
or if i t com es on whi le driving, t he ABS
s y st em is not wor king pr ope rly. The vehi ­
cle can the n be st opped only wit h the
s ta nda rd b ra kes (withou t A BS) . Yo u w ill
not have the protect ion A BS provides .
Contact your Audi dea le r as soon as pos­
sible.
- USA models: If t he 11111 warning light,
the
J_j) wa rnin g light and t he E warn­
ing light come on together, the rear
wheels could lock up f irst under hard
b rak ing. Rear wheel lock-up can ca use
loss of vehicl e co ntrol and an accident.
Hav e your ve hicle repair ed imm ediat ely
by y our authori zed A udi deale r or a quali­
fi ed work sh op. Dr ive slo wly and avoid
sud de n, hard bra ke applicat ions.
-Canada models: If the br ake w arn ing
ligh t. , the
G1 wa rning light a nd th e
A BS warning ligh t
SJ come on together,
the rear wheels could lock up first under
ha rd br aking. Rea r whee l loc k-u p can
cause loss of vehicle con tro l an d an acci­
dent. Have your veh icle repa ired immedi ­
ately by your authorized Audi dealer or a
qualified works hop. Drive s lowly a nd
avoid sudde n, hard b ra ke app lications.
-

Instrument s and warnin g/indic ator ligh ts 21
(0 ) Worn brake pads
rl] Brak e pad s!
If the warn ing light illum inates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­
ed. On USA models the wa rning light
rl]
comes on togethe r with the warn ing light
.. . Both sets of b rake pads on an axle
must always be replaced at the same time .
~ WARNING
Driving with bad brakes can cause a coll i­
sion and serious personal injury.
- If the warning light rl] and the wa rning
light ..
1> with the message Bra ke
pads !
comes on in the instrument cluster
display, immediately contact your au­
thorized Aud i dea ler or qualified work­
shop to have all brake pads checked or
replaced if necessary .
EPC Electronic power control
This warning/indicator light monitors the
electronic power control .
The Im warning/ indicator light (Electron ic
Power Control) illuminates when you switch
the ignition on as a function check .
(!) Tips
If this wa rning/indicator light ill uminates
while you are dr iving, then there is a mal­
function in the engine electron ics . Have
the malfunction co rrected as soon as pos­
sible by you r autho rized Aud i dea le r or
qua lified repair fa cility.
o Malfunction Indicator Lamp (MIL)
The Malfunc tion Ind icator Lamp (M IL) is par t
of the On -Boa rd Diagnostic (OB D II) system.
The symbol ¢• tights up when the ignition is
switched on and w ill tur n off after the engine
has started and has sett led at a constant id le
1 ) - : USA mod els on ly
-
speed. This indicates that the M IL is work ing
properly .
T he wa rni ng lig ht ill uminates w hen the re is a
malfu nction in t he engine electron ic system .
Contact your a uth orized Audi dea ler and have
the malfunction corrected .
An imprope rly closed fuel fille r cap may a lso
ca use the M IL light to illuminate~
page 2 2 7 .
Fo r more information ~ page 29.
!?) Engine speed limitation
App lies to vehicles: wit h eng ine speed limitat ion
(I! Engine sp ee d maximum XXXX RPM
The eng ine speed is automatically limited to
the speed d isplayed in the driver information
system. Th is protects the engine from over­
heating.
The eng ine speed limitation deactivates once
the engine is no longer in the critical tempera­
tu re range and you have re leased the accelera­
tor pedal once.
If the engine speed limitation was activated
by an engine control malfunction, the indica­
tor light
Im a lso tu rns on. Make sure that the
speed does not go above the speed disp layed.
Drive to your authori zed A udi dealer immedi ­
ate ly to have the ma lfunction corrected.
~. Engine oil level
II Add oil, max. x qt (l). You may continue
dri ving
When the symbol II and driver message ap­
pear, add the amount of oil appearing in the
display at the next opportunity ~
page 235.
~tt• Engine oil sensor
Ill Oil level! Sensor defective
If the symbol illumina tes, contact yo ur au ­
thorized Audi dea ler and have the oil sensor
inspected. Until yo u have this done, check the .,..

86 Audi adapti ve cruise control and bra king gu ard
Audi adaptive cruise
control and braking
guard
Introduction
App lies to vehicles: with Audi adaptive cruise co ntrol
The adaptive cruise control system assists the
driver by regu lat ing vehicle speed and helping
to maintain a set distance to the vehicle
ahead, within the limits of the system.
If the
system detects a moving vehicle up ahead,
adaptive cruise control can brake and then ac­
celerate your vehicle. This helps to make driv­
ing more comfortable both on long highway
stretches and in stop-and-go traffic.
The braking guard system can warn you about
an impending collision and initiate braking
maneuvers
c:::> page 92.
Adaptive cruise control and braking guard
have technical limitations that you must
know, so please read this section carefully, un­
derstand how the system works and use them
properly at all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise co ntrol
Fig. 86 Front of the veh icle: sensors and video camera
The areas that conta in the radar and ultrason­
ic sensors and the v ideo camera
c:::> fig. 86
must neve r be cove red by stic kers or other ob­
jects or obstructed w ith dirt, insects, snow or
i ce that will interfere with the adaptive cruise
control system and braking guard. For infor­
mation on cleaning, refer to
c:::> page 216. The same applies for any modifications made in
the front area.
T he function of the adaptive cru ise contro l
system and braking guard is limited under
some cond itions:
- Objects can only be de tected when they are
w ith in sensor range
c:::> fig . 89.
-The system has a limited ability to detect
objects that are a short d istance ahead, off
to the side of your vehi cle or mov ing into
your lane.
- Some kinds of ve hicles are hard to detect;
for examp le motorcycles, veh icles with high
ground clearance or overhanging loads may
be detected when it is too late or they may
not be detected at all.
-When driving through curves
c!,>page 87 .
-Stat ionary objec ts c:::> page 87.
& WARNING
A lways pay attention to traffic when adap ­
tive cruise contro l is switched on and brak­
ing g uard is active. As the dr iver, you are
still respons ible for starting and for main­
taining speed and distance to other ob­
jects. Braking guard is used to assist you .
The dr iver must a lways take action to avo id
a collis ion . The driver is a lways respons ible
fo r braking a t the co rrec t time.
- Imp roper use of adaptive cru ise control
can cause collisions, other acc idents and
serious pe rsonal in jury.
- Never let the comfort and convenience
that adaptive cruise control and braking gua rd offer d istract you from the need to
be alert to traffic condit ions and the
need to rema in in fu ll control of your ve­
h icle at a ll times,
- Always remember that the adaptive
cruise control and braking guard have
limits -they will not s low the vehicle
down or maintain the set distance when
you drive towards an obstacle or some­
thing on or near the road that is not
mov ing, such as vehicles stopped in a
traffic jam, a stalled o r disabled vehicle.
I f registered by the radar sensors,

Audi adapt ive crui se c ontrol an d bra kin g guard 8 7
vehicles or obstacles that are not moving
can trigger a collision warning and if con­
firmed by the video camera, an acute col­ lis ion warn ing.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condit ion and/or in bad weather
(such as ice, fog, gravel, heavy rain and
hydroplan ing). Using the system under
these cond itions cou ld result in a co lli ­
sion .
- Switch adaptive c ruise control off tempo­
rar ily when driv ing 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 adapt ive cru ise control system w ill
not brake by itse lf 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 w ill have limited function.
- The adapt ive cruise control system and
braking guard do not react to people , an­
ima ls, objects crossing the road o r on­
coming objects .
- The function of the radar sensors can be
affected by reflective objects such as
guard ra ils, the entra nce to a tunnel,
he avy rain or i ce.
- Never follow a veh icle so closely that you
cannot stop your vehicle safe ly. The
adaptive cruise cont ro l c anno t slow or
brake the veh icle safely when you follow
another vehicle too closely. Always re­
member that the automatic braking
funct ion cannot bring the veh icle to a
sudden or emergency stop under these
condit ions .
- To prevent unintended operation, always
switch ACC off when it is not be ing used. (D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That cou ld affect the adaptive
cruise control system and brak ing guard .
Have your authorized Aud i dea le r or a u­
thorized Audi Serv ice Facility check their
funct ion.
In curves
Applies to vehicles: with Audi adaptive cruise control
I
F ig. 8 7 Exampl e: dri vin g in to a curve
When dr iving into a curve c:> fig. 87 and out of
a cu rve, the ad aptive cruise con trol m ay react
to a vehicle in the next lane and apply the
brakes . You can override or prevent the brak­
i ng by pressing the accelerator pedal b riefly.
Stationary objects
Applies to vehicles: with Audi adaptive cruise control
Fig. 88 Ex ampl e: object chang ing l anes and s ta tio nar y
objec t
The adaptive cru ise con tro l system only reacts
to objects that a re mov ing o r th at the system
has a lready detected as moving . For examp le,
if a veh icle @, which has a lready been detect-
ed by the adaptive c ruise contro l, tu rns o r
changes lane s and another stationary vehicle .,._

92 Audi adaptive cruise control and braking guard
Audi braking guard
Descript ion
App lies to vehicles: with Audi adap tive cruise control
Fig. 96 Instrument cluster: approach warn ing
Braking guard uses radar sensors and a video
camera . It also functions within the limits of
the system when adapt ive cruise control is
switched off .
What can braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes sud­
denly or if your own vehicle is traveling at a
high speed and approaching a vehicle up
ahead that is moving more slowly . Brak ing
guard does not react if it cannot detect the
situation .
The system advises you of various situations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time. If
the vehicle ahead brakes sharply, you will not be able to avoid a collision . The indicator
light
I in the display comes on .
- The
approach warning is given when a de­
tected veh icle up ahead in your lane is mov ­
i ng much more slowly than you are or if it
brakes sharply . When this warning is given,
it may only be possible to avoid a collision
by swerving or braking sharply. Th e indicator
light
I and indicato r in the display will warn
you about the danger¢
fig. 96. You will a lso
hear an acoustic signal.
If you do not react fast enough or do not react
at all to the situation, braking guard will inter-
ll This is not ava ilable in some co un tri es .
vene by braking and the message braking
guard intervention
wi ll appear.
- If a coll is ion is imm inent, the system wi ll
fi rst prov ide an
acute warning by briefly and
sharply applying the brakes.
- If you do not react to the acute warning,
braking guard can brake with increas ing
force within the limits of the system . This
reduces the vehicle speed in the event of a
collision.
- The system can initiate maximum braking
short ly before a co llision
1l . Full deceleration
at high speeds occurs only in vehicles with
adaptive cruise control and side assist (pre
sense plus) .
- If the braking guard senses that you are not
braking hard enough when a collision is im­
m inent, it can increase the braking force .
- The pre sense functions also engage when a
collision is imminent¢
page 194.
Which function s can be controlled?
You can switch braking guard and the dis­
tance/approach warning on or off in the MMI
i=> page 93, Settings in the MMI.
A WARNING
-
Lack of attention can cause collisions, oth-
er accidents and serious personal injuries.
The braking guard is an assist system and
cannot prevent a collision by itself . The
driver must always intervene. The dr iver is
a lways respons ible for braking at the cor­
rect time.
- Always pay close attention to traffic,
even when the braking guard is switched
on. Be ready to intervene and be ready to
take complete control whenever necessa­
ry. Always keep the safe and legal dis­
tance between your veh icle and vehicles
up ahead.
- Braking guard works within limits and
will not respond outside the system lim­
its, for example when approaching a
stopped vehicle or stationary obstacle ..,.

Audi adaptive cru ise control and brakin g guar d 93
(end of a traffic jam or veh icle t hat has
br oken down in traffic).
- Alw ays remember that the radar sensor
for the b raking guard works only within
defined detection and ra nge limits that
may prev ent the proper det ection of oth­
er ve hicles.
- The ra dar sensor's function and range
can be reduced by rain, snow and heavy
spray. Moving vehicles up ahead may not
be promptly detected or may not be de­
tected at al l.
- Reflective surfaces includ ing crash barr i­
ers or tunnel ent rances may impair the
function of the radar sensor.
(0 Tips
- You can cance l the braking w ith increas­
i ng fo rce that is initiated by the system
by braking yo urself, by accelerating no­
ticeab ly or by swerving.
- Brak ing guard error messages
<=> page 93.
-Keep in mind that braking guard can
brake unexpectedly. Always secure any
ca rgo or objec ts that you are transport ­
i ng to reduce t he risk of d amage o r in­
Ju ry.
Settings in the MMI
Appl ies to vehicles: with Audi adaptive cruise co ntrol
~ Se lect: ICARlf unct ion button> ( Car )* sys­
tems
contro l button > D river assi st > Audi
braking guard .
System -
Switch braking g ua rd On and Off .
When you sw itch the ignition on, the message
Audi braking guard off appears if the system
is switched off.
Early warning -The distance and approac h
warn ings in the display can be switched
On /
Off .
(D Tips
- Your settings are automatically stored
and assigned to the remote control key being used at the time the settings
are
ma de.
- If you switch the ES C to spo rt mode,
braking g uard switches off a utomatica lly
<=>page 198.
- Switch braking guard off when you a re
loading the vehicle onto a vehicle carrier,
t rain, ship o r other type of transporta­
t ion. This can prevent undesired warn­
ings from the braking guard system.
Messages
App lies to vehicles : wit h Audi ada ptive c ruise contro l
ACC unavail able
ACC and braking guard: unavailable
T he system cannot detect mov ing vehicles up
ahead co rrec tly and is switched off. The sen­
sors have been displaced or a re not worki ng
properly . The Audi pre sense func tions may a l­
so be affected. Drive to yo ur autho rized Audi
dealer or authorized A udi se rvice facility im­
med iate ly to have the malfunction corrected.
ACC: unavailable at this time. No sensor vi­
sion
ACC and braking guide: unavailable at this
time . No sensor vision
Th is message appears if the senso r view is ob­
structed, for examp le by leaves, snow, heavy
sp ray or d irt. C lean the sensors<=>
fig. 86 .
ACC: unava ilabl e at this time . Inclin e too
steep
The road exceeds the max imum possible an­
gle for proper adaptive cru ise control opera­
tion. Adaptive cru ise con tro l is switched off .
ACC: only selector lever positions D , S or M
available
Se lect t he D/S or M selector leve r pos ition.
ACC: unavailabl e at this time . Parking brake
s et
The adaptive cr uise cont rol system switches
off automatically if the park ing b rake is set. ..,.

128 Homelink®
Homelink®
Universal remote
control
General information
Applies to vehicles: with Homelink® unive rsal remote
co ntrol
The Homelink universal remote control can
be programmed with hand-held transmitters
from existing equipment.
With Homelink, you can control devices such
as the garage door, security systems, house lights, etc. comfortably from the inside of you
vehicle.
H omelink makes it possible for you to rep lace
three different remote controls from devices in your home with one universal remote . Th is
feature works for most garage door and exte­ rior door moto r signals. Programming the in­
d iv idual remo te control fo r you r remote con ­
trol takes p lace near the center of the radiator
grille. There is a control module attached at
this location .
A one-t ime programm ing of the sensor mus t
be performed before you are able to use sys­
tems w ith Homelink.
A WARNING
- Never use the Homelink ® transmitter
with any garage door opener that does have not the safety stop and reverse fea­
ture as required by federa l safety stand­
ards. This includes any garage door open­
er mode l manufact ured before April 1,
1982.
- A garage door opener which cannot de­
tect an object, signaling the door to stop
and reverse does not meet cur rent feder­
al safety s tandar ds. Us ing a garage doo r
o pener witho ut these fea tures in creases
risk of serious inj ury or death.
- F or safe ty reasons never release t he
parking brake or s tart the engine while
anyone is standing in front of the vehicle .
- A garage door or an est ate gate may
sometimes be set in motion when the Homelink
® remote control is being pro­
grammed. If the device is repeatedly ac ­
tivated, this can overstrain motor and
damage its electrica l components - an
overheated motor is a fire hazard!
- To avo id possible injuries or property
damage, please always make absolutely
certa in that no persons or objects are lo­
cated in the rang e of motion of any
equ ipme nt bei ng ope rated.
(0 Tips
- If you would like add itional information
on the Home Link® Unive rsal Transce iver,
Homelink compatib le p roducts, or to
purc hase other accessories s uch as the
HomeL ink® Light ing Package, please
contact Homelink at 1-800 -355 -3515 o r
on the Internet at www.homelink .com.
- For Declaration of Comp liance to Unite d
States FCC and Ind ustry Canada reg ula ­
tions
¢ page 292.
- For security reasons, we recommend that
you clear the programmed b uttons be­
fore selling the vehicle .
Operation
Applies to vehicles: wit h Ho meli nk
Fig . 14 5 Headliner: controls
M 0
9 (!)
~
Requi rement: The bu tto ns must be program­
med
¢ page 129 .
"' To open the garage doo r, press the pro­
grammed b utton. The LED @ will light up o r
flash.
"' To close the ga rage doo r, press the button
aga in .
Ill>