2009 AUDI Q7 sensor

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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. _.,

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When you look in the outside mirror, you can clea rly see the infor ­
mational s tage signal.
Ale rt sta ge sign al
When you ac tivate the turn signal, and side assist has detected a
vehic le in a notab le location on that particu lar sid e, the signal light
on this side mirror flashes brightly. The repea ted brief and bright
flash ing of the aler t stage signa l reminds you to carefully check
t raffic to the rear in the outside mirror and over your shoulder, so
that you can safely complete the lane change=>
& in "Safety tips"
on
page 182.
[ i ] Tips
T he brightness of the signal light on the outside mirrors can be
adjusted with the
MMI => page 180 . •
Con tro ls and eq uip­
ment
A pp lies to veh ic les: with s ide ass ist
Driving situation : Fast approaching vehicles
Fig . 189 Side a ssist : Fas t ap pro achin g veh ic les
G) Sign al on outside mirror does not l ight up
No vehicle was detected by the sensors. The signa l on the outside
mirror does not light up=>
& in "Safety tips" on page 182.
0 Informa tio nal stage signal lights up
A fast approaching vehicle -in the left-hand lane for example -was
detected by the sensors. Although this vehicle is still far away, it
should be taken into account if you we re to change lanes , due to the
considerable difference in speed. The informational stage signal on
t he outside mirror lights up=>
page 176 .
© Alert stag e signal flashe s
If you activate your turn signal in driving situation @, the signal
briefly flashes repeated ly. Side assist is alerting you to a vehicle that
you may not have noticed .
~
Vehicle care I I irechnical data

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[ i J Tips
• The faster a vehicle approaches from the rear, the sooner the
s ignal on the outside mirror lights up . Side assist will signal, at the
latest, when a detected vehicle enters your "blind spot".
• When vehicles approach very quickly, changing lanes can be
dangerous even if the signal on the outside mirror does not light
up. •
Applies to vehicles: with side assist
Driving situation : Slowly approaching
vehicles
Fig. 190 Side assist: Slowly approaching vehicles and vehicles in your blind
spot
(D Signal on outside mirror does not light up
A vehicle approaching slowly -in the left -hand lane for example -
was detected by the sensors. Because of the small difference in speed and the considerable distance from your vehicle, the signal
on
the outside mirror will not light up
~ & in "Safety tips" on
page 182.
© Informational stage signal lights up
The distance between your vehicle and that of the slowly
approaching vehicle has narrowed. The informational stage signal
on the outside mi rror lights up.
As soon as the difference in speed and distance is registered as notable if you were to change lanes, a signal on the mirror lights up .
Side assis t will signal a t the latest when a detected vehicle enters
your "blind spot".
© Alert stage signal flashes
If you activate your turn signal in driving situation©, the signal
light briefly flashes repeatedly . Side assist is alerting you of a
vehicle that you may not have noticed.
[ i J Tips
• The faster a vehicle approaches from the rear, the sooner the
signal on the outside mirror lights up . Side assist will signal , at the
latest, when a detected vehicle enters your "blind spot".
• When veh icles approach very quickly, changing lanes can be
dangerous even if the signal on the outside mirror does not light
up. •