2011 AUDI Q7 brakes

lffll.___A_ d_ a_,_ p_t _i_ v _e _ C_r_ u_ i_ s_ e_ C_ o_ n_ t_ r_ o_ l __________________________________________ _
Applie s to veh icles : wi th Adap tiv e Crui se Con tro l
How does Adaptive Cruise Control work?
Vehicles traveling ahead ore detected with the aid of a
radar sensor.
Fig. 132 Basic prin­
ciple diagram: Radar
sensor measurement
range
Adaptive Cruise Control uses a radar sensor in the front of the vehicle
=>
page 138, fig. 132 . The system has limitations=> page 149.
Things that are not moving in your lane and in your direction of travel
w ill not be detected. The sensor measures the distance to reflective
surfaces that must have a certain size. The system responds only
after the distance measurement has been made . If a measurement is
not possible, the system cannot respond and will not react to a
vehicle or someth ing else up ahead.
Open road
When the road is clear, the Adaptive Cru ise Control works like cruise
control. It maintains a constant target speed specified by the driver .
Driving in traffic
If a slower veh icle driv ing ahead is detected, the Adaptive Cruise
Control decelerates (within the limits of the system)=>
page 148,
"Driver intervention prompt" and => page 149, "System limitations"
to its speed and after adjusting, tries to ma inta in the set distance
from the vehicle ahead. The vehicle may temporarily drive slower
than the set speed whi le adjusting=>
& in "Descr iption" on
page 136.
If the vehicle in front accelerates, Adaptive Cruise Control also accel­
erates up to the speed that you have set.
If the vehicle ahead slows to a stop, ACC w ill slow your vehicle down
and to a complete stop if this is possible within the system's limits
and capabilities . ACC will not make an emergency stop. The text
message
ACC off: manual control! appears in the instrument cluster
display. Once the vehicle stops, you must depress the brake pedal to
prevent the veh icle from moving forward or "creeping". Depressing
the brake pedal turns off ACC. When the vehicle ahead accelerates
you can reactivate ACC =>
page 141, as soon as your vehicle has
reached a speed of 1 mph (2 km/h) .
Situations requiring driver intervention
In some situations you will have to use the footbrake to slow the
vehicle down in order to keep a safe distance from vehicle in front of
you or to avoid a rear-end collision. In this situation, a symbol
appears and a warning tone sounds=>
page 148.
Passing another vehicle
If you move into the passing lane and no vehicle is detected ahead,
the Adaptive Cruise Control accelerates to the speed you have set and
maintains it.
Overriding ACC
You can increase your speed at any time by stepping on the acceler ­
ator pedal. After you release the accelerator pedal, the system
adjusts back down to the speed you previously set.
Reduc ing stopping distance
If the radar sensor detects that the distance to the vehicle ahead is
less than defined minimum distance, the brakes are automatically
prepared for emergency braking by the driver. The brake pads are
moved very close to the brake discs withou t actually bra king the
vehicle. This brake assistant feature reacts more quickly to the driver's braking, and also works when Adaptive Cruise Control is off.
The stopping d istance is reduced as a result of this advance brake .,_

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preparation. Th is function does not p erfo rm any e mergency braki ng
man eu ver s by its elf; th e dr iver m ust alway s app ly the b ra kes .
& WARNING
If ACC initiates a braking maneuver, the brake pedal will be
retracted . Interference with the brake pedal can prevent ACC from
slowing the vehicle down and cause a crash and serious personal
injury .
• Never put anything in the driver's footwell or let anything fall
into it. An object in the driver 's footwell can interfere with the
pedals and prevent the accelerator from being used to override
ACC or prevent ACC from being switched off when the brake pedal
is depressed and also prevent the vehicle from being slowed down
or stopped.
• Only use floor mats that keep the area around the pedals free
and that can be securely fastened to the footwell.
• Never drive with your foot underneath the brake pedal.
• Always read and heed the information and WARNINGS~
& in
" Description " on
page 136.
& WARNING
• Never rely on the distance control feature of ACC alone to
prevent rear-end collisions. Always be prepared to brake and take
evasive action to avoid collisions and other accident situations.
• Never allow the closing speed between you and other vehicles
to be so high 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.
[I] Tips
Please note tha t the amount of accelerat ion the Adaptive Cr uise
Control uses depends on t he D istance sett ing se lected. DIS TA NCE 1
give s yo u acc eler ation th at is dy namic and sport y. DI STANC E 4, on th e
Controls and equip ­
ment Safety first
o
ther hand , gives more moderate acce lera tion . For more info rmation
a b out t he tim e inte rvals ~
page 142 , "Ho w is the di stanc e (tim e
interval) se t?".
• P lease no te th at if the A dapt ive Cruis e Con trol has b egun braking
t he vehicle a nd the dr ive r ch oos es to brake the vehicle addit io nally,
th e bra kes m ay feel "h ard". Thi s is s imply due to th e p res sur e buil d­
up of th e initia l braking.
• Adaptive Cr uise C ontr ol is sw itche d off aft e r p ressing the foot­
bra ke. T he speed saved up this poin t can be resumed . To resume the
s aved s peed, rele ase the b rake ped al and pull th e control lever
t oward you~
page 141, "Turning Adaptive Cr uise Contro l off
tempora rily" .•
A pp lies to ve hicle s: with Ad apti ve Cru ise Con tro l
Switching the system on and off
Switching the system on
- P ull th e lever t o posit ion © => fig . 133 .
Switching the system off
Fig . 133 Control
lever: Switch ing on
an d off
- P ress t he lever to posit io n @ (latc hed). •
Vehicle care Technical data

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& WARNING
Following other v ehicles too clo sely increases the risk of a crash
and serious per sonal injury.
• Following other vehicles too closely, particularly at higher
speeds in crea ses the ri sk of collisions and seriou s personal injury.
• Setting short distances to the traffic ahe ad reduces the time
and distance avail able to bring your vehicl e to a safe stop and
makes it even more necessary to pay close attent io n to t raffic.
• Always select a speed and distance to traffic ahead that is safe
and appropriate under the pre vailing traffic, road , weathe r and
lighting conditions.
• Never rely on the distance control feature of ACC alone to
prevent rear-end collisions . Always be pr epared to brake and take
evasive action to a void collisions and other accident situations.
• Never allow the closing sp eed b etween you and other vehicles
to be so high that the Adapti ve Cruise Control may not be able to
s low your vehicle safely . If closing speed is too high, you must
apply the brakes yourself to reduce the r isk of a rear -end crash.
• Always select a greater following di stance to the vehicle ahead
on wet roads than on dry roads.
• Always read and h eed the information and WARNINGS=>
& in
"Description" on page 136.
(I] Tips
The distance setting is reset to the factory de fault DIS TANCE 3 the
next time the igni tion is t urn ed on .•
Driver information
Applies to veh icles: with Adapt ive Cruise Control
Displays in the instrument cluster
Depending on the driving situation, driver info rmation is
displayed in the instrument cluster.
@ Speedometer an d indicator lig ht disp lay
@ Display in the instrument cluster
Fig . 1 39 Ove rvi ew
in strum ent clu ster
@ Speedometer and indicator Light d isplay
Important information concerning vehicle operation w ith Adaptive
Cru ise Control is shown in d isp lay area @. The des ired speed yo u set
is indicated in the speedometer (LED lights around the edge).
T he in dicator lights show whe ther the system has detec ted a veh icle
traveli ng ahead .
@ Display in the instrument cluster
In display area ® informat ion from the navigation system * and the
t rip compu ter i s displayed in a dditio n t o info rmation abou t Ad aptive
Cru ise Contro l.
You ca n sele ct among the dif ferent informatio n by repeated brief
t aps on the!RESET)button on the windsh ield w ipe r leve r=>
page 27,
"Operation". .,.

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Certa in pieces of information in the bottom part of the display are not
shown permanent ly. Information is displayed only if you set or
change the speed setting, change the t ime interval, when messages
are displayed or if the Adapt ive Cruise Control is turned off for safety
reasons. •
Applies to veh icles: with Adaptiv e Cruise Contro l
Display in the speedometer
Desired speed
Fig . 140 Display in
the speedometer
Th e desired speed set by the driver is displayed by a red LED.
If the desired speed was set between two lines on the speedometer
using the
[SET) bu tton, the two closest light emitting diodes w ill
come on=> fig. 140.
The system allows only speeds to be set between 20 to 95 mph (30 t o 150 km/h) to be set. This speed range is fa int ly illumina ted in the
speedometer (LED lights).
Indicator lights (symbols)
• ""~ Open road: The indicator light""~ shows that ACC is active
and that no mov ing vehicle has been detected with in range of the
radar sensor up ahead in your lane of travel. The set speed is main­
ta ined.
Con tro ls a nd e quip ­
m en t Vehicle
OP-eration •
~" "~ Driving in traffic:
The indicator light ~11 .. c::::., shows that a
vehicle moving in yo ur lane of travel has been detected up front in
your lane of travel. Your speed is adjusted accord ing to the speed of
the vehicle up front. ACC accelerates and brakes automatically within
the system's capabilit ies .
• ~" "~ Driver intervention prompt: The red flashing warning
light
c::::., 11 .. o::::::) means Request for driver to assume control. You as the
driver must slow the veh icle with the foot brake . T he symbol
~""o::::::)
tells you that the Adaptive Cruise Control is not able to slow the
vehicle down enough to keep a enough distance to the vehicle in front
of you. A warning tone will also sound when the symbol appears. For
more information about the driver intervention prompt=>
page 148.
& WARNING
Improper use of the Adaptive Cruise Control features and inatten­
tion can lead to a crash and serious personal injury.
• Never allow the closing speed between you and other vehicles
to be so high 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 up
ahead on wet roads than on dry roads.
• Alway s read and heed the information and WARNINGS=>
& in
" Description" on
page 136.
[ i ] Tips
• If you use the accelerator to go faster than the speed of the
vehicle ahead of you, the driver intervention prompt will not be
accompanied by a warn ing to ne.
• If the speed yo u previously set is exceeded, the indica tor light in
the speedometer will switch off .•
Vehicle care Do-it-yourselt service iTechnical data

Adaptive Cruise Control I'll __________________________ ...:....:..;:_....;_,,!,_ ______ _
App lies to vehicl es: wi th Adaptive Cru ise Con trol
System status indicator
The text messages and symbols shown in this area of the
displ ay are not displayed permanently .
Time intervals (such as e::::, ____ e::::,)
Fig. 142 Sy stem
st atu s indicator
The d ifferent symbols for the time interva ls (distance) appear if you
change the settings~ fig . 142.
Thr ee wh ite dots .. . ap pear if a set ting c annot be made w ith the o pe r­
ating lever . The following are possible reasons
• If you pull the control lever towa rds you to resume speed but no
requested speed was set .
• If you push the lever up to increase (or down to re d uce) speed
when no speed has been set previo usly .
• If yo u push the lever up to increase (o r down to red uce) spee d and
this speed is outside the 20 to 95 mph (30 to 150 km/h) speed ra nge .
ACC not available
The text message ACC not ava ilable appears, for examp le, if the
t empe ra tu re o f the brakes is excessive. Adap tive Cru ise Con trol is
temporar ily not avai lab le. A warning tone sounds as a reminder .
Controls and equip­
ment Safety first
ACC not available !
Th
e text message ACC not available! appears in the event o f a
ma lfunction . Adaptive Cru ise Contro l is tur ned off .
A warn in g tone
so unds as a reminder. Have the system inspected by a q ualified dea l­
ersh ip .
ACC sensor blocked !
The text message ACC sensor blocked ! appears w hen the ACC System
can no longer acc urately detect vehi cles movi ng up ahead in your lane
o f travel. Adaptive C ruise Cont rol is tu rned off. A wa rning tone a lso
so unds as a reminder .
T o decide w hethe r it is ne cess ary to switch off the ACC (ACC senso r
blocked
!) or if it is only a temporary condition (ACC Functionally
limited), the sys tem w ill also takes into considera tion the outside
temperature and/or the w indshield wiper operation .
T he ACC sensor is d irty or b locked (e .g . leaves, snow).
Th e ACC senso r is lo ca ted be hind t he a rea to the right o f th e front
license plate.
If the ACC sensor is dirty or blocked, clean the area to
restore sy stem o per ation.
ESP activation
T he text message ESP activation appears if the Electro nic St abil iz a­
tion Program (ESP) has intervened. In this case the Adaptive Cruise
Con trol is au tomat ica lly tu rned off. This is accompan ied by a warn ing
tone.
Speed
The set speed in mph (Canada km/h) always appears when saving or
c hangi ng the speed in Ad aptive C ruise Cont rol~
page 14 0, "How is
the speed stored?" and~
page 140, "Changing stored speed" .
ACC functionality Limited
The message ACC functionality limited appears when the ACC
System does no t detec t any moving vehicles up a head in your lane of
trave l for a longer period of time. Dur ing t his time, the d istance to
movi ng ve hicles in you r lan e of tra ve l up ahead i s not being m ain-
~
Vehicle care Technical data

ffl..__A_ d_a_ p,__ t_iv _ e_ C_r _u _ i_ s _e _ C_ o_ n_t _ r_ o _ L ___________________________________________ _
Applies to veh icles : with Adapt ive C ruise Contro l
When driving around curves
Entering a curve
Fig. 144 Vehicle
entering a curve
Fig. 145 Vehicle
leaving 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. 144. The braking action can be overridden by depressing the
accelerator pedal.
Leaving a curve
At the end of very long curves, AC C's predictive lane reading can cause
ACC to react to another vehicle in the next lane and apply the brakes
on your vehicle::;, fig. 145. The braking action can be overridden by
depressing the accelerator pedal. •
Applies to veh icles : with Adaptive Cruise Control
Vehicles offset to one side
i
----------------- .. i
Fig. 146 Vehicle trav­
eling ahead outside
the detection range of
the radar sensor
Vehicles moving up ahead but offset in the lane cannot be detected
by ACC until they are in sensor range.•
Applies to veh icl es: with Adapt ive Cruis e Contro l
Lane changes by other vehicles
Fig. 147 A vehicle
changes lanes
Vehicles that cut into your lane a short distance in front of you cannot
be detected by ACC until they are in sensor range .•

-Adaptive Cruise Control •m.____...,__ _____________ _
The Audi braking guard is active from a speed of approx. 20 mph
(30 km/h) and works within the system limits=>
page 149 even when
the Adaptive Cruise Control is deactivated.
A radar sensor is built into the front of the vehicle=>
page 138,
fig. 132. The system is intended to measure the distance to reflective
surfaces. If a measurement is not possible, the system does not
respond.
When the measurement has been taken, the system can recognize a
possibly hazardous situation, for example, when a vehicle up ahead in
your lane of travel suddenly brakes or when your own vehicle is moving at high speed towards a much s lower vehicle up ahead . As
soon as the system senses that a possible collision w ith the 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
collision occurs. This system response time is automatically reduced
if you accelerate actively, for example to join a highway . Braking,
transverse acceleration and the steering ang le can lead to a reduced
system response time . The warning is deactivated if you begin to
overtake with full acceleration.
Th e system can make you aware of two different hazardous situa­
tions:
Distance
T he distance warning is given if the system calculates that there is not
enough distance to the vehicle 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) , fo r example, an optic al disp lay comes on in the inst rument
cluster=> fig. 151.
If the vehicle ahead brakes sharply, Audi braking guard cannot he lp
you to avoid a coll is ion, 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 s lower vehicle moving up ahead in your lane, or if
the vehicle a head brakes sharply, the Audi braking guard calculates
the point from which a collision can only be avo ided by full braking or
by an avo idance maneuver. If a warn ing does sound, a possible co lli­
sion with the vehicle in front can only be avoided through an evasive
maneuver or by braking.
The warn ing is given in two stages:
• Pre-warning : A visual display appears in the instrument cluste r
and a warning tone sounds .
• Acute warning: If you do not respond to the pre-warning, the
second stage warni ng is given . A quick brake application helps to
direct your attention to the road and traffic situation .
Under heavy braking, the brake assistant=>
page 138 also helps you
benefit from maximum braking effic iency.
& 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 braking
guard works within defined detection and range limits that may
prevent the proper detection of other vehicles. _,.,

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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 th is posi tion . Sh ift to this posit ion
for standing with the brakes applied~
page 165.
When the vehicle is stationary or at speeds below 3 mph (5 km/h),
you must always apply the footbrake before and wh ile moving the
lever out of
N .
D -Normal position for driving forward
Position D is 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 stat ionary or at speeds below 3 mph (5 km/h),
you must always app ly 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 manua lly select gear rat ios to
match specific driving conditions~
page 167.
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 ach ieve livelier
acceleration.
When the vehicle is stat ionary 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
163 .
Contro ls a nd e quip ­
m en t Vehicle
OP-eration
0 Note
Coasting downh ill with the transmission in N and the engine not
running will result in damage to the automatic transmission and
poss ibly the catalytic converter .•
Automatic Shift Lock (ASL)
The Automatic Shift Lock safeguards you against acci­
dentally shifting into a forward or the reverse gear and
causing the vehicle to move unintentionally .
Fig. 164 Shift gate:
selector lever lock posi­
tions 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 . 164 with your thumb un til you have moved the
selector lever to the desired position.
Automatic selector lever lock
The selector lever is locked in the P and N positions when the ignition
is turned on. To move the lever from these positions the driver must
depress the brake pedal. As a reminder to the driver, the following
~
Vehicle care Do-it-yourselt service iTechnical data