2009 AUDI Q7 brakes

• ..__A_ d_ a-:.. p_t _iv _ e_ C_r_ u_ i _s _ e_ C_ o_n_ t_ r_ o_ l _____________________________________________ _
& WARNING
Following other vehicles too closely increases the risk of a crash
and serious personal injury .
• Following other vehi cles too closely , particularly at h igher
speeds increases the risk of colli sions and serious personal injury.
• Setting short distances to the traffic ahead reduces the time
and distance available to bring your vehicle to a safe stop and
makes it even more necessary to pay close attention to traffic .
• Always select a speed and distance to traffic ahead that is safe
and appropriate under the prevailing traffic , road , weather and
lighting conditions .
• Never rely on the distan ce control feature of ACC alone to
prevent rear-end collisions. Always be prepared to brake and take
evasive action to avoid collisions and other acc ident situations .
• Never allow the closing speed between you and other vehicles
to be so h igh that the Adaptive Cruise Control may not be able to
slow your vehicle safely. If closing speed is too high , you must
apply the brakes yourself to reduce the risk of a rear-end crash .
• Always select a greater following distance to the vehicle ahead
on wet roads than on dry roads .
• Always re ad and heed the informat ion and WARNINGS ::::>
& in
"Description" on
page 152.
[ i J Tips
The distance setting i s re set to the factory default DISTANCE 3 the
next time the i gnition is turned on. •
Driver information
Applies to veh icles : w ith Adapt ive Cru ise Cont rol
Displays in the instrument cluster
Depen din g o n the driving si tuati on, driver inf ormation is
dis played in the ins trumen t clus ter.
@ Spe ed om eter and indicator lig ht displ ay
@ Display in the instru ment clu ster
Fig . 16 7 Overview
in strument clu ste r
© Speedometer and ind icator light display
Im por tan t in fo rm ati on co ncerni ng veh icle ope ration w ith Ada ptiv e
Cruise Control is shown in display area@. T he desired speed you
s et is in dica te d in the spee dome ter (LED l igh ts aro un d t he edg e).
T he indicator lights show whether the system has detected a v ehic le
trave ling ahead .
© Display in the instrument cluster
In di sp lay area @ informati on fr om the navigati on syste m* a nd t he
trip computer is disp layed in addition to information about Adaptive
Cru ise Control.
You can s ele ct amo ng th e di ffer ent i nformati on by repeat ed br ief
taps on the [R ESET] button on the windshield wiper lever
=> p ag e 41 , "O peration". ~

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Certain pieces of information in the bottom part of the display are
not shown permanent ly . Informa tion is displayed on ly if you set or
change the speed set ting, change the time interval , when messages
are displayed or if the Adaptive C ruise Co ntrol is turned off for safety
reasons. •
Applies to vehicles: with Ada ptive C rui se Cont rol
Display in the speedometer
Desired speed
Fig. 16 8 Displa y in th e
s p ee do mete r
The desired speed set by the driver is displayed by a red LED .
If the desired speed was set between two lines on the speedomete r
using the
[SET I button, the two closest light emitting diodes will
come on
=> fig . 168.
T he system allows on ly speeds to be set between 20 to 95 mph (30
to 150 km/h) to be set . This speed range is faintly illuminated in the
speedometer (LED l ights).
Indi cator light s (sy mbols )
• ""c:::::> Open road : The indicator light ""c:::::> shows that ACC is active
and that no moving vehic le has been detected with in range of the
radar sensor up ahead in your lane of trave l. The set speed is main ­
tained.
Con tro ls and eq uip­
ment
• c:::::>1n ,c:::::> Dri ving in traffi c: The indicator light c:::::>11, ,c::::, shows that a
ve hicle moving in your lane of travel has been detec ted up front in
your lane of travel. Your speed is adjusted according to the speed of
t he vehicle up front . ACC accelerates and brakes automa tically
within the system's capabilities.
• c:::::>11 "c:::::> Driver intervention prompt : The red flash ing warning
light
~11 .. .::::::, means Reque st for driver to a ssume control . You as the
driver mus t slow the vehic le with the foot b rake . The symbol
.::::::,11 .. c:::::>
tells you that the Adaptive Cruise Con trol is not able to s low the
vehic le down enough to keep a enough distance to the vehic le in
front of you. A warn ing tone wi ll also sound when the symbo l
appears . For more information about the driver intervention prompt
=> page 764.
& WARNING
Improper u se of the Adap tive Cr uise Contr ol features and inat ten ­
tion can lead to a crash and serious person al injury .
• Never allow t he clo sing speed between you and other vehi cle s
to be so high that the Adapt ive Cruise Control may not be able to
s lo w your vehi cle safely .
If clos ing speed is too h igh , you must
apply the brakes your self to reduce the risk of a rear-end crash .
• Alway s s ele ct a greater follo wing di stance to the veh icle up
ahead on wet ro ads than on dry road s.
• Always re ad and heed the information and WARNINGS=>
& in
" Description " on
pag e 152.
[ i ] Tips
• I f you use the accelerator to go faster than the speed of the
vehicle ahead of you, the driver intervention p rompt wil l not be
accompanied by a wa rning tone .
• I f the speed you previously set is exceeded, the indicator light in
the speedometer wi ll swi tch off .•
Vehicle care I I Technical data

Adaptiv e Crui se Contro l ""' __________________________ ___;__;~-------
Applies to vehic les: w it h Ad aptive Crui se Co nt rol
System status indicator
The text messages and symbols shown in this area of the
display are not displayed permanently.
T ime in ter va ls (s uch a s c::;, __ __ c::;, }
Fig . 170 System
sta tus in dicator
The different symbols for the time intervals (distance) appear if you
change the settings:::;, fig. 170 .
Three white dots .. . appear if a setting canno t be made with the
operating lever . The following are possible reasons
• If you pull the control lever towards you to resume speed but no
requested speed was set.
• I f 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 dow n to reduce) speed
and this speed is outside the 20 to 95 mph (30 to 150 km/h) speed
range .
A CC no t ava ila bl e
The text message ACC not av aila ble appears, for examp le, if the
temperature of the brakes is excessive. Adaptive Cruise Control is
t emporarily not available . A warning tone sounds as a reminder.
Controls and equip ­
ment A
CC not ava ilable!
The text message ACC not availabl e! appears in the event of a
malfunction. Adaptive Cruise Control is turned off. A warning tone
sounds as a reminder . Have the system inspected by a qua lified
dea lership.
ACC s ensor bl ocked
!
The text message ACC se nsor blo cke d ! appears when the ACC
System can no longer accurately detect vehicles moving up ahead
in your lane of
travel. Adaptive Cruise Control is turned off. A
warning tone a lso sounds as a reminder.
To decide whether it is necessary to switch off the ACC (ACC sensor b locked
!) or if it is only a temporary condition (ACC Functionally
limited), the system wi ll also takes into consideration the ou tside
temperature and/or the windshield wiper operation.
The ACC sensor is dirty or b locked (e .g . leaves, snow).
The ACC sensor is located behind the area to the right of the front license p late. If the ACC sensor is dirty or b locked, c lean the area to
restore system operat ion.
ESP activ at ion
The text message ES P activ ation appears i f the E lectronic Stabiliza­
tion Program (ESP} has intervened. In this case the Adaptive Cruise
Control is automatically turned off . This is accompanied by a
warning tone.
S peed
The set speed in mph (Canada km/h) always appears when saving or
changing the speed in Adaptive Cru ise Control :::;, page 156, "How is
the speed stored?" and:::;, page 156, "Changing stored speed".
A CC function alit y limited
The message ACC functionalit y lim ited appears when the ACC
System does not detect any moving vehicles up ahead in your lane
of trave l for a longer period of time. During this time, the distance
t o moving vehicles in your lane of trave l up ahead is not be ing main -~
I • •

• ..__A_ d_a...: p:,..._ ti_v _ e_ C_ ru_ is_ e_ C_ o_n_ t_ r_ o _ l ___________________________________________ _
• 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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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. _..

_____________________________________________ A_ d_a ...: pc.. t _i_ v _e_ C_ ru_ is_ e_ C_ o_n_ t_ r_ o _ l __ lfflll
& 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 • •

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- Select Audi braking guard. The Audi braking guard menu
appears.
Select
Early warning on to switch the acoustic and visual
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 53. •
Applies to vehicles: with Adaptive Cruise Contro l
Driver's information in the instrument cluster
display
braking guard brake jolt
This message appears when the Audi braking guard applies the
brakes during a second stage (acute) warning.
braking guard off
This message appears when the system has been deactivated via
the MMI. This message also appears briefly at each beginning of a
trip if the system is switched off.
This message also appears when the system is not available
because of a malfunction or if ESP is switched to the Offroad
mode :::>
page 288. The system can no longer warn of an impending
collision. •

• ..__A_ u_ t _o_ m_ a_ t_ i_ c _ t_r _a _n_ s_ m_ is_ s_io _ n ________________________________________________ _
Select R only when the vehicle is at a full stop and the engine is
running at idle speed=>
& in "Driving the automatic transmission"
on
page 184.
Before you move the selector lever to R, press both the button in the
handle of the selector lever
and the brake pedal at the same time.
When the ignition is on, the backup lights illuminate when the
selector lever is moved into R.
N -Neutral
The transmission is in neutral in this position. Shift to this position
for standing with the brakes applied =>
page 186 .
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the footbrake before and while moving the
lever out of
N.
D -Normal position for driving forward
Position Dis for normal city and highway driving. It ranges from zero
to top speed and all gears shift automatically, depending on engine
load, driving speed and automatically selected shift programs.
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the foot brake before and while moving the lever to
D out of N.
In certain circumstances it may be advantageous to temporarily
switch to the manual shift program to manually select gear ratios to
match specific driving conditions=>
page 788.
S -Sport position
Select this position for sportier performance. In this position, the
transmission will not upshift as soon, allowing the vehicle to use the
increased power available at higher engine speeds to achieve live­
lier acceleration.
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the foot brake before and while moving the lever to
S out of N.
& WARNING
Read and follow all WARNINGS => & in "Driving the automatic
transmission" on
page 184.
0 Note
Coasting downhill with the transmission in N and the engine not
running will result in damage to the automatic transmission and
possibly the catalytic converter. •
Automatic Shift Lock (ASL)
The Automatic Shift Lock safeguards you against acciden­
tally shifting into a forward or the reverse gear and
causing the vehicle to move unintentionally.
Fig. 199 Shift gate:
selector lever lock
positions and interlock
button highlighted
The selector lever lock is released as follows:
- Turn the ignition on.
Step on the brake pedal.
At the same time press and hold
the interlock button on the side of the gear selector knob
=> fig. 199 with your thumb until you have moved the
selector lever to the desired position.
~