2017 AUDI A7 brake sensor

Instruments and indicator lights
AIR
BAG
"O~ I I ~ ,,
TPMS
12
USA models: safety systems
¢page 17
Canada models: safety systems
¢page 17
Brake pads
¢page 17
Electromechanical parking brake
¢page 14
Tire pressure monitoring system,/
¢page 229, ¢page231
Tire pressure monitoring system
¢ page 229, ¢ page 231
Engine control (gasoline engine),/
¢page 17
Engine control (diesel engine),/
c::>page 17
Malfunction Indicator Lamp (MIL)
,I
¢page 17
Diesel particulate filter*
¢page 17
Engine speed limitation
¢page 18
Engine oil level
¢page 15
Engine oil sensor
¢page 18
Engine warm-up request
¢page 18
Battery charge
¢page 14
Tank system
¢page 18
Washer fluid level
¢page 18
Windshield wipers
¢page 18
Remote control key
¢page 69
Remote control key
¢page 71
Battery in remote control key
¢page29
Bulb failure indicator
¢page 19
Rear fog lights
<=>page 19
Headlight range control system
¢page 19
Adaptive light*
¢page41
Light/ra in sensor
¢ page 19
Active lane assist*
¢page 97
Suspension control*
<=> page 19
Transmission
¢page 81
Transmission
<=>page 81
Steering lock
¢page 15
Engine start system
<=>page 15
Brake booster
<=>page 16,
Central indicator light
¢page 10
Electromechanical power steering,
dynamic steering*
¢ page 124
Rear spoiler
<=>page 125
Air suspension*
¢page 16
Sport differential*
¢page 19
Ad Blue*
<=>page 195
Ad Blue*
¢page 195

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In stop-and-go traffic, adaptive cruise control can
brake until the vehicle is stationary and then be­
gin driving again under certain conditions
¢page 92.
Audi braking guard can warn you about an im­
pending collision and initiate braking maneuvers
¢page 94.
Which functions can be controlled?
When you switch adaptive cruise control on, you
can set the current speed as the "control speed"
¢ page 91, Switching on/off.
When driving, you can stop cruise control
¢
page 92 or change the speed ¢ page 92 at
anytime.
You can also set the distance to the object mov­
ing ahead and set the driving mode of the adap­
tive cruise control¢
page 93 .
General information
Applies to: veh icles with Audi adaptive cruise control
Fig. 91 Front of t he vehicle: sen sors and video came ra
The areas that contain the radar and ultrasonic
sensors and the video camera¢
fig. 91 must not
be covered by stickers, deposits or other objects
because they can interfe re with the function of
the adaptive cruise control system and braking
guard. For information on cleaning, refer to
¢
page 235. The same applies for any modifica­
tions made in the front area.
The function of the adaptive cruise control sys­
tem and brak ing guard is limited under some
conditions.
- Objects can only be detected when they are
within the sensor range¢
page 88 , fig. 90 .
Assist
- The system has a limited ability to detect ob­
jects that are a short distance ahead, off to the
side of your vehicle or moving into your lane.
- Objects th at are difficult to detect such as mo­
torcycles, vehicles with high ground clearance
or an overhanging load are detected late or not
detected at all.
- When driving through curves
¢page 90.
-With stationary objects ¢ page 90.
A WARNING ~
Always pay attention to traffic when adaptive
cruise control is switched on and braking
guard is active. As the driver, you are still re­
sponsible for starting and for maintaining
speed and distance to other objects. Braking
guard is used to assist you . The driver must
always take action to avoid a collision. The
driver is always responsible for braking at the
correct time.
- 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 hydroplan­ ing). Using the system under these condi­
tions increases the risk of an accident.
- Switch adaptive cruise control off tempora­
rily when driving in turning lanes, on ex­
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the stored speed when in these situations.
- The adaptive cruise control system will not
brake by itself if you put your foot on the ac ­
celerator pedal. Doing so can override 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, ani­
mals, objects crossing the road or oncoming
objects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard rails, the entrance to a tunnel, heavy rain or
ice.
~
89

Ass is t
_&. WARNING
- Improper use of adaptive cruise control can
cause collis ions, other accidents and serious
personal injury .
- Never let the comfort and convenience that
adaptive cruise control and braking guard
offer d istract you from the need to be alert
to traff ic conditions and the need to rema in
in full control of your vehicle at all times,
- Always remember that the adaptive cruise
contro l and braking guard have limits - they
will not slow the veh icle down or ma intain
the set distan ce when you drive towards a n
obstacle or something on or near the road
that is not moving, such as vehicles stopped in a traffic jam, a stalled or disabled vehicle .
If registered by the radar sensors, vehicles
or obstacles that are not moving can trigger
a collision warn ing and if confirmed by the
video camera, a n acute collision warning .
- Never follow a veh icle so closely that you
cannot stop your vehicle safe ly . The adap ­
t ive cr uise control cannot slow or brake the
vehicle safely when you fo llow another veh i­
cl e too close ly. Always remember that the
automa tic braking func tion cannot br ing the
vehicle to a sudden or emergency stop un­
der these condit ions .
- T o prevent unintended operation, always
switch ACC off when it is not being used .
(U) Note
The sensors can be displaced by impacts or
damage to the bumpe r, whee l housing and
underbody. That cou ld affect t he adaptive
cruise control system and braking guard .
Have an authorized Audi dealer or authorized
Audi Serv ice Facility check their function.
90
In curves
Applies to: vehicles with Audi adaptive cruise control
Fig. 92 Ex am ple: dri ving into a curv e
When dr iving into a curve c:::> fig. 92 and out of a
curve , the adapt ive cruise control may react to an
object in the neighboring lane and apply the brakes . Yo u can prevent that by pressing the ac­
ce le ra to r peda l br iefly.
Stationary objects
Applies to: vehicles with Audi adaptive cruise control
F ig . 93 Exam ple: object chang ing la nes a nd stat ion ary ob ·
jec t
The adaptive cru ise control system only reacts to
objects that are moving or t hat the system has
already detected as moving . For example, it can
react when a vehicle that has already been de­
tected @ turns or changes lanes, but adaptive
cruise control does not react to a stationary veh i­
cle @.

Ass is t
@ Tips
Your settings are automatica lly stored and as­
signed to the remote control key be ing used .
Request for driver intervention
App lies to: ve hicles w ith Audi adaptive cruise co ntro l
Fig . 99 Instrum ent clus te r: r eq ues t fo r drive r interve ntio n
In certain situations, the system w ill request you
to take action :
- if t he braking from the adapt ive cr uise control
system is no t enough to maintai n enough dis­
tance to the object ahead.
The dange r is ind icated by the . indicator light
~ fig. 99. An audio s ignal will also sound.
- Press the brake pedal to slow your vehicle down .
Audi braking guard
Applies to: ve hicles w ith Audi adaptive cruise co ntro l
Fig . 100 In str um ent clus te r: appro ach warning
The braking guard uses radar sensors and a video
camera .
It also functions within the limits of the
l) This is no t a vail able in som e coun trie s.
94
system when adaptive cru ise control is switched
off.
What can the braking guard do ?
When detected in time, the system can assess
dange rous si tu at ions where an object ahead
brakes sudden ly or if yo ur own vehicle is trave ling
at a h igh speed and approach ing an ob ject that is
moving more slow ly. The braking guard does not
react if it cannot detect the situation.
The system advises you of var ious dange rous sit­
uations :
- The
di stan ce warning occu rs if you dr ive too
close ly to the object ahead fo r a long per iod of
time .
If the object ahead brakes strongly, you
would not be ab le to avoid a co llis ion. The .
indicator light appears as an indication for this .
- T he
appr oach w arning occurs when an object
ahead is trave ling more slowly or brakes
strongly. When this warning occurs, it may only
be possible to avoid a collis ion by swerving or
brak ing strongly . The danger is indicated by the
• indicator light
¢fig. 100 . An audio signal
w ill also so und .
If you do not react early enough or at all to a dan ­
gerous situation, the braking guard supports you
with a braking intervention .
- If a co llision is imminent, the system wi ll first
provide an
acute warning by braking sharply .
- If you do not react to th e acute warning, the
b raking guard can inc rease the braking force
w ith in the lim its of the system
1> . This reduces
the vehicle speed in the event of a coll is ion.
- T he system can in itiate complete dece leration
shortly before a collision
l) . Full deceleration at
high speeds occurs only in veh icles with adap­
tive cruise control and side assist (pre se nse
plus) .
- If the braking guard determ ines that you are
not braking s trongly enough when the re is a n
impending coll is ion, it can increas e the b raking
force.
- The p re sense funct io ns also engage w hen
there is an impending collision ~
page 138.

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\.J ' Which functions can be controlled?
You can switch the braking guard and the dis­
tance/approach warning on or off in the Infotain­
ment system
c::, page 95 , Settings in the Info­
tainment system.
A WARNING
Lack of attention can cause collisions, other
accidents and serious personal injuries. The
braking guard is an assist system and cannot
prevent a collision by itself. The driver must
always intervene . The driver is always respon­
sible for braking at the correct 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 necessary. Al­
ways keep the safe and legal distance be­
tween your vehicle and vehicles up ahead.
- Braking guard works within limits and will
not respond outside the system limits, for
example when approaching a stopped vehi­
cle or stationary obstacle (end of a traffic
jam or vehicle that has broken down in traf­
fic).
- Always remember that the radar sensor for
the braking guard works only within defined
detection and range limits that may prevent
the proper detection of other vehicles .
- The radar 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 detected
at all.
- Reflective surfaces including crash barriers
or tunnel entrances may impair the function
of the radar sensor.
{!) Tips
- You can cancel the braking with increasing
force that is initiated by the system by brak­
ing yourself, by accelerating noticeably or
by swerving.
- Keep in mind that braking guard can brake
unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury .
Assist
Settings in the Infotainment system
Applies to: vehicles with Audi adaptive cruise control
.,. Select: the I CAR! function button > (Car)*Sys·
terns
control button > Driver assistance > Audi
braking guard.
System -
Switch the braking guard On/Off. When
you switch the ignition on, the message
Braking
guard: Off
appears if the system is switched off.
Early warning -The distance and approach 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.
- If you restrict or switch off the ESC, the
braking guard also switches itself off
¢ page 121 .
-Switch braking guard off when you are load­
ing the vehicle onto a vehicle carrier, train,
ship or other type of transportation. This
can prevent undesired warnings from the
braking guard system.
Messages
Applies to : vehicles with Aud i adapt ive c ru ise control
Braking guard: Off
This message appears if the system is switched
off through the Infotainment system. Otherwise,
if the system is turned off, the information ap­
pears every time shortly after the start of the
trip .
The message also appears if the system is not
available due to a malfunction or if the ESC is
switched
off ¢page 121. If this is the case, the
system will not provide warnings about a possi­
ble collision.
Braking guard: engaged
This message appears if a sharp brake pressure
was applied due to an acute warning .
ACC: unavailable
ACC and Audi braking guard: Unavailable
95

Ass is t
The system cannot guarantee that it will detect
objects correctly and is switched off. The sensors
have been moved or are faulty. The pre sense
functions may also be affected. Dr ive to an au­
thor ized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor ­
rected .
ACC: Currentl y unav ailabl e. No senso r vis ion
ACC and Audi braking guard : Curre ntly un avail­
a ble . No se nsor v ision
This message appea rs if the sensor view is ob­
s truc ted, for example by leaves, snow, heavy
spray or d irt. C lean the sensors ¢
page 89,
fig. 91.
ACC: Curre ntly unavailable. Gradient too steep
The road exceeds the max imum possible angle
for safe adapt ive cruise control operation . Adap­
tive c ruise contro l is switched off.
AC C: onl y availab le in D, S or M
Select the 0/5 or M selector lever position .
ACC: Currentl y unavailable . Parking brake ap •
pl ied
The adaptive c ruise contro l system switches off
automatically if the park ing bra ke is set.
ACC: Curre ntly unavail abl e. Stab ility control
( ESC) input .
This message appears if the Electronic Stabiliza­
tion Control (ESC) is tak ing action to stabilize the
ve hicle . In this case, adapt ive cruise control
sw itches off automatically.
AC C off: Manual control!
This message appears when adaptive cr uise con­
trol cannot set the parking brake . Press the brake
pedal to prevent the vehicle from rolling.
•••
Three white dots appear if a sett ing cannot be se­
lected wi th the ope rating lever. For example, this
h a ppens if adaptive c ruise cont ro l canno t start
driving automatically in stop -and-go traffic be­
cause the driver has not fastened their safety
be lt.
96
Door open
The adaptive cru ise cont rol system cannot switc h
o n when a door is open.
Stationary obj ect ah ead
This message appears if you wo uld like to switch
adaptive cruise control on and there is a station­
ary object or obstacle direct ly ahead of your vehi­
cle .
Audi active lane assist
Description
Appl ies to: vehicles with Audi act ive lane assist
Active lane assist detects lane marker lines with­
i n the lim its of the system using a camera in the
windshield. If you are approach ing a detected
lane marker line and it appears like ly that you
will leave the lane, the system w ill warn you with
corrective steering. You can override this steering
at any time. If you pass over a line, the steering
whee l w ill vibrate lightly. In orde r fo r thi s warn­
i ng vibration to occ ur, it must first be switched
on in the Infotainment system. Active lane ass ist
is ready for operation when the lane marker line
is detected on at least one side of the vehicle.
The system is des igned for driving on express­
ways and highways and therefore on ly activates
at speeds above approximately 40 mph (65 km/
h) .
Applies to: vehicles with side assist
If you activate a turn s ignal when act ive lane as­
s ist is ready and it classifies a lane change as crit ­
ica l because of vehicles traveling a longside you or
approach ing you, there wi ll be noticeable correc­
tive steer ing shortly before you leave the lane.
This will attempt to keep your veh icle in the lane.
Applies to: vehicles without side assist
The system will not wa rn you befo re c ross ing a
l ane marke r line if you have act ivated the t urn
s ignal. In this case, it assumes that you are
changing lanes intentionally.
Applies to: vehicles with adaptive cru ise control
The corrective steer ing is targeted based on the
driv ing situation . In add it ion to the lane marke r .,.

Care and cleaning
A WARNING
- Only wash the vehicle when the ignition is
off and follow the instructions from the car
wash operator to reduce the risk of acci­
dents.
- To reduce the risk of cuts, protect yourself
from sharp metal components when wash­
ing the underbody or the inside of the wheel
housings.
-After washing the vehicle, the braking effect
may be delayed due to mo isture on the
brake rotors or ice in the winter . This in­
creases the risk of an acc ident. The brakes
must be d ried first w ith a few careful b rake
applications.
(D Note
- If yo u wash the ve hicle in an automatic car
wash, yo u m ust retract the rear spoiler if
necessary, and fold the exte rior mi rrors in
to reduce the risk of da mage. Power fo ld ing
ex ter ior mirro rs* m ust only be folded in and
out using the power folding func tion.
-
- To red uce the risk of pa int damage, do not
wash the vehicle in direct sun light .
- T o reduce the risk of damage to the s urface,
do not use insect removing sponges, kitchen
sponges o r similar items .
- Matte finish painted vehicle components:
-To reduce the risk of damage to the sur-
face, do not use polis hing agents or hard
wax .
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint. The paint could be damaged
when the stickers or magnets are re­
moved.
@ For the sake of the environment
Only wash the veh icle in facili ties spec ially de­
s igned for that pu rpose . This will reduce the
r isk of dirty wate r contam inated with o il from
ente ring the sewe r system.
Cleaning and care information
W hen clean ing and ca ring for ind ividua l vehicle
components, refer to the fo llow ing tables. The
i n formation conta ined there is s imply recom­
mendations. For quest ions or for components t
h at are not listed, cons ult an autho rize d Aud i
dealer or au thor ized Aud i Servi ce Fac ility. Also
fo llow the informa tion found in <=> & .
Ext erior cleaning
Component Situation Solution
Windshield wiper
Deposits ¢ page 47, Cleaning windshield wiper blades
blades
Headlights /
Deposits Soft sponge wi th a m ild soap solution3>
Tail light s
Sensors /
Deposits Sensors: soft cloth with solvent-free cleaning solution
camera lens es Camera lenses: soft cloth w ith alcohol -free cleaning solu -
tion
Snow/ice Hand br ush/solvent-free de-icing spray
Wheels Road salt Water
Bra ke dust Acid-free special cleaning solution
Exhaust tail pipes Road salt Water, clea ning solution su itab le for s tainl ess stee l, if nee-
essa ry
236

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Driver side cockpit fuse
assignment
Fig. 2 11 Driver side cockp it: fuse panel wit h plastic bracket
Fuse panel @ (black)
No . Equipment
Electromecha nica l powe r steering, trailer
1 hitch, ionizer, switch st
rip, seat heating
(rear), electromechan ica l park ing brake
Ho rn, climate con trol system, Gateway,
2 automati
c dimm ing in ter ior rearv iew m ir-
ro r, On -Board Un it
4 Park ing aid, headlight ra nge adjustment
5
Dynamic steering, E lectron ic Stabilization
Control (ESC)
6 Headlights
7 Adapt ive cruise control
8 Front passenger's seat senso rs, a irbag
9 Gateway
10 Engine sound, night vision ass
ist, garage
door opene r (H ome link), parki ng aid
11 Video camera image processing
1 2 Headlights
13 Steering column sw
itch module
Fuses
Fuse panel @ (black)
14 Termina l 15 (luggage compartment)
15 S tarte r
Fuse panel @ (brown)
No . Equipment
1 Infotainment system
2 Infotainment system
3 Front passenger's seat
5
A
irbag, Elect ronic S tabilization Con trol
( E SC)
6 Ant
i-theft alarm system
7 Electromec hanical pa rking brake
8 Inter io r li ghts
9
Windshie ld video came ra heating, light/
rain sensor
10 Lumbar support (dr iver's seat)
11 Driver
's seat
12 Electronic st abilization con trol
13 Horn
1 4 Head lights
15 Front seat heating
16 Dynam ic steering
Fuse panel © (red)
No . Equipment
1 Clutch peda l
2 Fuel p ump
3 Brake
light sensor
4 AdB lue (diese l engine)/engine aco ustics
5 Rear door
6 Fr
ont door
7 Electronic stab ilization control
8 Windshie ld w iper motor
9 Head light washer system
10 Interio
r lighting, climate control system
1 1 Head lights
12 Sunroof
251