sensor AUDI Q7 2009 Owner´s Manual

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tained. The ACC system is not switched off, and increased attention
to the traffic situation is absolutely necessary. The following may be
reasons why the message
ACC functionality limited appears:
• The ACC sensor is dirty . The ACC system is not reacting, or is not
reacting correctly, to moving vehicles up ahead in your lane of
travel.
• There may be very light traffic on and there is nothing that marks
the side of the road (for example, guard rails, traffic signs, trees). As
soon as a moving vehicle up ahead is detected again, ACC becomes
active again and the message disappears .
The ACC sensor is located behind the area to the right of the front
license pla te . If the ACC sensor is dirty or blocked, clean the area to
restore system operation.
Parking brake !
The text message Parking brake ! appears, when the parking brake
is applied. ACC is turned off. A warning tone sounds as a reminder.
Stationary object ahead
The text messag e Stationary object ahead appears, when you want
to activate the system and there is a stationary vehicle or an object
immediately in front of you.
Gradient too steep
The text message Gradient too steep appears when the maximum
gradient for proper ACC operation has been exceeded. Adaptive
Cruise Control is turned off. A warning tone also sounds as a
reminder.
ACC off: manual control!
The text message ACC off: manual control! appears after the vehicle
has been brought to a standstill by the Adaptive Cruise Control. In
this case you must depress the brake pedal to prevent the vehicle
from rolling. A warning tone sounds as a reminder .
Selector lever position!
The text message Selector lever position! appears when the
selector lever is moved to position
N. In this position, Adaptive
Cruise Control is not available. •
Applies to vehi cles : wi th Ad aptive Cr uise Co ntro l
Driver intervention prompt
The driver intervention prompt calls on the driver to take
over the situation.
Fig. 171 Instrument
cluster: Driver inter­
vention prompt
In certain situations , the braking power of the Adaptive Cruise
Control is not enough to maintain an adequate distance to the
vehicle up ahead. In these situations, the Adaptive Cruise Control
calls the driver to take action .
The
driver intervention prompt alerts you visually and audibly to
take over .
• A red vehicle is shown in the instrument cluster display
::::::,fig.171.
• The text DISTANCE! appears in the status line .
• The indicator light
.:=:,1,, ,.:=:> in the speedometer blinks red.
• A warning tone sounds.

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[ i ] Tip s
• Adaptive Cruise Contro l is switched off after pressing 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 157, "Turning Adaptive Cruise Control off
temporarily".
• If you use the accelerator to go faster than the speed of the
vehicle ahead of you , the
dr iver i nterve ntion pr ompt will not be
accompanied by a warning signal.
• If the speed you previously set is exceeded , the indica tor light in
the speedometer wi ll switch off. •
Applies to v ehi cles: with Ad aptive Crui se Co nt rol
MMI settings
Individual settings for Adaptive Cruise Control can be
selected in the MM/ .
Fig. 172 M MI Display:
A dapti ve C ruise
Co ntrol
Settings for the driving program can be adjusted indiv idu ­
ally to the particular user and saved in the MMI. This can
only be done with the eng ine running.
- Press the
I CAR] funct ion button.
Controls and equip ­
ment
Select Sy stem s* in the CAR menu.
- Select
Adaptive Crui se Control . The Adaptive C ruise
Control
menu appears.
Select
driving program .
Select the desired driv ing program .
Sett in g t he d riving p rogram
In the driving progr am menu you can adjust the characteristics of
Adaptive Cruise Contro l to your own preferences using
d yn ami c,
s ta nd ard
or comfort .
Sav ing sett ing s
Your individua l settings are automatical ly 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
Applies to veh ic les : w ith Ada ptiv e Crui se Cont ro l
General information
The radar sensor has limits that the driver must know to
be able to use ACC properly.
The Adaptive Cruise Control works within limits that ar e also related
to radar sensor range and sight distance . In some situations ACC
may react unusually or late from the driver's point of view . There ­
fore, always be attentive to what is happening around you and always be ready to intervene, if necessary :
• when driving around curves=>
page 166
• when vehicles up front are not in line with your vehicle
=>
page 166
• when other vehic le s are changing lanes=> page 167
I • •

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• when other vehicles are difficu lt to dete ct~ page 167
• when vehicles up ahead are not moving or obs tacles are in your
trave l lane ~ page
167
& WARNING
The radar sensor's fun ction and range can be redu ced by rain ,
s now and hea vy spray. Mo ving vehicle s up ahead may not be
promptl y dete cted or m ay not be detected at all.
• Alway s pay careful attention to the traffic situ atio n and be
ready to inter vene and be ready to take compl ete control wh en­
ever ne ce ssa ry . •
App lies to vehicles : wi th Ada ptive Cruise Contro l
When driving around curves
Fig . 17 3 Ve hicle
e nt erin g a curv e
Entering a cur ve
Fig . 174 Vehicle
l eav ing a curve
When entering a curve, the Adaptive Cruise Control may react to a
vehicle in the next lane and apply the brakes in your vehicle
~ fig. 173. The braking action can be overridden by depressing the
accelerator pedal.
Leaving a curve
At the end of very long curves, ACC's predictive lane reading can
cause ACC to react to another vehicle in the next lane and apply the
brakes on your vehicle~ fig. 174. The braking action can be over­
ridden by depressing the accelerator pedal. •
Applie s to vehic les : w ith Ad aptiv e Crui se Cont rol
Vehicles offset to one side
~
l==================1 i
Fig. 175 V ehicle trav ­
e lin g ahe ad o uts ide th e
de tec tion rang e of th e
r ad ar sen sor ..

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Vehicles moving up ahead but offset in the lane cannot be detected
by ACC until they are in sensor range. •
Applies to vehicles: with Adaptive Cruise Control
Lane changes by other vehicles
0
F ig . 176 A ve hic le
c h anges la n es
Vehicles that cut into your lane a short distance in front of you
cannot be detected by ACC until they are in sensor range.•
Applies to vehicles: with Adaptive Cruise Control
Vehicles that are difficult to detect
~==========--;; !
Contro ls and eq uip­
ment
Fig . 177 T wo-wheel ed
ve hicle drivi ng a he ad
Some vehic les moving up ahead in your lane of travel are difficult to
detect, for example two -wheeled vehicles, vehicles with high
ground clearance, loads sticking out the back. Vehicles like this are
often detected late or in some si tuations not at all. •
Applies to veh ic les: with Adaptive Cruise Contro l
Stationary vehicles
i-----------------.. ~
;
Fig. 178 Turnin g and
sta tio na ry ve hic le
F ig. 179 S hee ring out
a nd stat ionary v ehicle
If a vehicle that has been detected by ACC exits the highway or
sheers out into the neighboring travel lane, and there is a stationary
vehic le ahead of that vehicle, ACC will not detect or react to that
stationary vehicle~ fig. 178 and~ fig. 179. •
Vehicle care I I irechnical data

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Audi braking guard
App lies to vehicles: with Adaptive Cruise Contro l
Description
Audi braking guard warns you of a possible collision with
a moving vehicle up ahead.
F ig. 180 Disp lay in t he
i nstrumen t cluster
The Audi braking guard is active from a speed of approx. 20 mph
(30 km/h) and works within the system limits=>
page 165 even when
the Adaptive Cruise Control is deactivated.
A radar sensor is built into the front of the vehicle=>
page 154,
fig. 160. The system is intended to measure the distance to reflec ­
tive surfaces. If a measurement is not possible, the system does not respond.
When the measurement has been taken, the system can recognize a possib ly hazardous s ituation, for example, when a vehicle up
ahead in your lane of travel sudden ly brakes or when your own
vehic le is mov ing at high speed towards a much s lower vehic le up
ahead. As soon as the system senses that a possible collision with
t he vehicle up ahead can only be avoided by immediate full brake
application or by an avoidance maneuver, a warning appears.
The system has a default response time to be able to signal before a co llision occurs. This system response time is automatica lly
reduced if you acce lerate actively, for example to join a highway. Braking, transverse acceleration and the steering angle can lead to
a reduced system response time. The warning is deact
ivated if you
begin to overtake with full acceleration.
The system can make you aware of two different hazardous situa ­
t ions:
Distan ce
The distance warning is g iven if the system calculates that there is
not enough distance to the vehic le up ahead a period of more than
5 seconds . If the distance is less than 30 feet (9 meters) at 50 mph
(80 km/h), for example, an optical display comes on in the instru ­
ment cluster=> fig. 180.
If the vehicle ahead brakes sharply, Audi braking guard cannot help
you to avoid a co llision, even in the case of an immed iate response .
T ake immediate action to avoid the collision and increase the
distance to the vehicle up ahead .
Speed
If there is a much slower vehicle moving up ahead in your lane, or if
the vehic le ahead brakes sharply, the Aud i braking guard calculates
t he point from which a co llision can only be avoided by full braking
or by an avoidance maneuver. If a warning does sound, a possible
collision with the vehicle in front can only be avoided through an
evasive maneuver or by braking.
The warning is given in two stages :
• Pre-warning: A visual disp lay appears in the instrument cl uster
and a warning tone sounds.
• Acut e warning : If you do not respond to the pre -warning, the
second stage warning is given . A quick brake application helps to
direct your attention to the road and traffic situation .
Under heavy braking, the brake assistant::::>
page 154also he lps you
benefit from maximum braking efficiency. _..

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& WARNING
Inattention can cause collisions, other accidents and serious
personal injuries.
• Always pay close attention to the traffic , even when the Audi
braking guard is switched on. The Audi braking guard provides a
warning but does not brake the car for you. You must apply the
brakes yourself!
• Always keep the safe and legal distance between your vehicle
and vehicles up ahead.
• Audi braking guard works within limits and will not respond
outside the system limits, for example when approaching a
stopped vehicle or stationary obstacle (end of a traffic jam or
vehicle that has broken down in traffic ).
• Always remember that the radar sensor for the Audi brak ing
guard works 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.
• Always pay careful attention to the traffic situation and be
ready to intervene and be ready to take complete control when ­
ever necessary .
• Reflective surfaces including crash barriers or tunnel entrances
may impair the function of the radar sensor . •
Controls and equip ­
ment
App lies to veh ic les: with Adap tive Cru ise Contro l
Settings in the MMI
The sett ing s of the Aud i braking guard are performe d in
the MM/ .
Fig. 181 MMI -Display :
Audi braking guard
Settings regarding the system and the ear ly warn ing can be
adju sted to the respect ive u ser and saved in the MML This
can on ly be done with the engine run ning.
Switching the system on and off
- Press the I CAR ] func tion b utton .
- Se lect Systems * in the
CAR menu .
Se lect Audi braking guard . The Audi braking guard menu
appears => fig. 181.
Se lect System on to switch the system on or off t o swi tch
the system off.
Switching the early warning on and off
P res s the I CAR I functio n button .
Select Systems * in the
CAR menu .
I • •

-Audi lane
assist --------------------
I Not ready: The yellow indicator light shows that the system is
turned on but unable to send a warn ing. This can be due to the
following:
• There are no boundary lines, or there is on ly one boundary line
present .
• The boundary lines are not detected (e.g. due to snow, dirt, wet
conditions or light shining into the camera lens).
• More than two boundary lines (such as at construction sites) are
located in the vehicle's lane.
• The vehicle's speed is below the speed needed to activate it,
which is about 40 mph (65 km/h).
• The lane is narrower than about 8 ft . (2.5 ml, or wider than about
16 ft. (5 ml.
• The curve is too sharp.
Notes on the instrument cluster display
When the lane assist turns off automatically, the instrument cluster
indicator goes out and one of the following messages appears on
the display:
Audi lane assist not available: Currently no sensor vision
This message appears when the camera can no longer function
because it cannot detect the boundary lines. This may be due to the
following :
• The exterior s ide of the camera viewing window=>
page 171,
fig. 183 is covered with dirt or ice. Clean this part of the windshield.
• The camera v iewing window is fogged up on the inside. In this
case, wait until the fog disappears before turning lane assist on
again.
• The system was unable to detect boundary lines over an
extended period of time due to road conditions (such as snow­
covered lanes). Do not turn lane assist on again until the lines can
be more easily detected.
Audi lane assist not available
A temporary malfunction is preventing lane assist from operating .
Try turning on lane assist again a t a later time.
Audi lane assist: system fault
The system should be checked by an authorized Audi dealer or other
qualified workshop .
[ i ] Tips
• Make sure that the camera viewing window:::> page 171, fig. 183
is not covered by stickers or similar objects .
• Always keep the camera viewing window clean. This can usually
be done by operating the windshield wipers. •
Applies to vehicles: with lane assist
MMI settings
You can use the MM/ to adjust the warning time and
steering wheel vibration.
Setting the warning time
Press the I CAR] function button.
- Select
Systems * in the CAR menu .
- Select
Audi lane assist.
Fig. 184 MMI Display :
Setting the warning
time and stee ring
wheel vibration

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Audi side assist
Lane Change Assistant
Applies to vehicles: with side ass ist
Description
The side assist helps you when changing lanes.
Fig. 185 Rear bumper:
Position of radar
sensors (not visible on
outside)
Fig . 186 Signal light
on the outside mirror -
driver's side
Side assist uses radar sensors (not visible on outside) => fig. 185 to
help the driver check blind spots, and see what is happening in
traffic behind the vehicle =>
page 176, fig. 188.
Signal lights are built into both outside mirrors=> fig. 186. The
signal light on the left outside mir ror assists when moving over into the left lane and the signal light on the right outside mirror assists
when moving over into the right
lane.
The signal light comes on to tell you that side assist has detected a
vehicle on that side and that the position of this other vehicle
should be taken into account if you were to change lanes. This is
called the
informational stage signal=> page 176. The informational
stage signal is designed so that you notice it only when you are
looking in the outside mirror .
When you activate the turn signal and side assist detects a vehicle
in a notable location, the corresponding signal on the outside
mirror flashes briefly and brightly several times. This is the
alert
stage signal
=> page 176. •
Appl ies to veh icles: with side assist
Activating and deactivating
Fig . 187 Driver's door:
Side assist button
Activating
Press the=> fig. 187 button. The indicator on the button
ligh ts up. ..,

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Deactivating
- Press t he button again . T he ind icato r light on the butto n
goes out.
T he system works at speeds faster than 19 mph (30 km/h) .
& WARNING
• Improper reliance on the side assist system can cause colli­
sions and seriou s per sonal injury:
- Never rely only on side assist when changing lanes .
- Always check rear view mirrors to make sure that it is safe to
c hange lanes.
• Side assist cannot detect all vehicles under all conditions­
danger of accident!
• Side assist cannot detect vehicles in time to alert you when
they approach from behind at very high speed , or fall drop back
very quickly.
• The radar sensor's
vision can be reduced or entirely blocked by
rain , snow, and heavy spray . This can result in side assist not
adequately detecting veh icles or , 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.
• Please note that side assi st indicates there are approaching
vehicles, or vehicles in your bl ind 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
radiu s less than 328 feet , or 100 m l.
• Side assist is no replacement for the driver's full attention . The
d river alone is responsible for lane changes and similar driv ing
maneuvers. Always keep an eye on the d ire ction you are travel ing
and the relevant area around the vehicle .
Controls and equip ­
ment
0 Note
• To e nsu re t hat you do not adverse ly a ffect s ide assist, do not
b lock the area on the rear bumper where the radar sensors are
located w it h f oreign objects (s uch as st ickers or bicycle rac ks).
• M ake su re that the signal light on the o utside mi rror is not
b loc ked by st ic ke rs or ot her items.
[ i ] Tips
• Side ass ist automaticall y deact ivates i f it detects t hat t he ra dar
sensors are blocked=>
page 181. The indicator light on the button
goes out.
• The area on the bumper whe re the rada r sen so rs a re loca ted
must cons iste ntly re mai n fr ee o f snow, ice, and heavy so iling so t hat
side assist can function properly. Follow the additiona l notes on
=>
page 182.
• F or vehicle s with a factory insta lled towing hitch* or a t railer
hi tc h* th at was installed later accordi ng to factory speci ficat ions,
side assist is automatically deactivated as soon as the electrical
co nnect ion to the tra iler elec trical socket is m ade =>
page 181 .
• For vehicle s with a t raile r hitch that was not insta lled acco rding
t o factory speci ficat io ns, sw itch off t he side assis t w hen towi ng a
trai le r.
• Add itiona l tin ting on the front side w indows can make it harder
to see and co rrect ly understand the signal light on the outside
mi rror.
• Fo r Decla ration of Comp liance to Uni ted States FCC and Ind ust ry
Canada regula tions=>
page 404. •
I • •

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Applies to vehicles: wi th side ass is t
Sensor detection area
.,,....... ~
. . "' . . . ;
Fi g. 188 Sc hema tic
ill us trati on : Sens or
d etec tion area
The detection => fig. 188 of the radar sensor detection area is made
up of:
• the approach area (light green area)
G), about 230 feet (70 ml
behind the vehicle, and
• the "bl ind spot" (dark green area)@.
The radar sensors cover the adjacent left and right lanes. Other
lanes are
not covered by the radar sensors.
[ i J Tip s
Side assist does not measure actual lane width. The system
assumes a fixed lane width . Detection in the left and right lanes is
based on this assumed lane width. When driving on narrow roads or
when driving to the left or right of the center of a travel lane, it is
possible that vehicles wil l be detected that are
not in the lane next
t o the lane you are using =>
page 181. •
Applies to vehicles: wi th side assis t
Operation
Side assist compares the distance and difference in speed of
detected vehicles with the speed of your vehicle. Whenever the
difference in speed and distance is registered as notable if you were
to change lanes, a signal light appears on the respective mirror.
The signal can light up if you are passed by a vehicle or if you are
passing another vehicle.
If you pass another vehicle slowly (difference in speed less than 9
mph, or
15 km/h), the signal light will come on as soon as the other
vehicle is in your blind spot and is detected by side assist. When the
difference in speed is greater, the signa l light will not come on .•
Appl ies to vehic les : w ith side assist
Informational and alert stage signals
Side assist has two signal stages:
• the informational stage signa l, and
• the alert stage signal.
Side assist helps you by using the appropriate signal stage,
depending on whether or not you have activated the turn signal,
and thus have indicated that you are or are not changing lanes.
In fo rm ati onal sta g e si gna l
As long as you have not activated the turn signal, side assist informs
you of detected vehicles that are registered as being in a notable location if you were to change lanes. Whenever the detected
vehic le's difference in speed and distance is reg istered by side
assist as notable, the signal light on the respective mirror produces
muted illum inatio n.
The brightness of the informationa l stage signa l is designed not to
be as intense, so that it does not interfere with your view of the road
when you are driving and have no intention of changing lanes. _.,