2017 AUDI Q7 brakes

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:E: ' If detected in time, the system can rank the dan­
gerous situation as critical if a vehicle driving
ahead brakes sudden ly, if your own vehicle is ap­
proaching a significantly s lower vehicle at high
speed or when there is an oncoming vehicle dur­
ing a turning maneuver .
If detection is not possible, then pre sense front
does not react.
Warnings
App lies to: veh icles with Audi adaptive cruise contro l
Fig. 115 In strument clus te r: approac h warning
General information
The system recognizes various dangerous situa­
tions. The
early warning occurs if:
- a vehicle driving ahead brakes suddenly,
- your own vehicle approaches a s ignificantly
s lower vehicle o r stationary vehicle in the direc­
tion of travel.
When this warning occurs, it may only be poss i­
ble to avoid a collision by swerv ing or b raking
strong ly. Th e message
Audi pre sense .
¢ fig. 115 and a warning tone will warn you
about the danger.
If you do not react enough or not at all to a dan­
ge rous situation that was detected by the sys­
tem, pre sense front provides assistance by ap­
p ly ing the brakes.
If a collis ion is imminent, the system w ill first
provide an
acute warning by braking sharp ly. You
will also warned by an ind icator in the instrument
cluster display¢
fig. 115. If you do not react to
the acute warning, pre sense front can brake with
l) This is not availa ble in so m e co untries.
Assistance systems
increasing force within the limits of the
system
1l . This reduces the vehicle speed in the
event of a collision. At low vehicle speeds, pre
sense front can in itiate a complete deceleration
shortly before a collision with a veh icle driving
ahead
l ). If pre sense front determines that you
are not braking strongly enough when a collis ion
is imminent, it can increase the braking force .
The following functions trigger in conjunc tion
with pre sense basic/rear at corresponding vehi ­
cle speeds :
- Reversible tensioning of the front safety belts. - Closing the windows and sunroof*.
- Inflating the side bolsters* in the seat backrest
and seat surface.
Audi dr ive select*: the reversible belt tensioner,
the closing of the windows and s unroof* as we ll
as the inflating of the side bolsters* on the seat
backrest and seat surface are not active depend­
ing on the mode selected.
Evasive steering support
Evasiv e steering support helps you to steer the
vehicle around an obstacle in a critical situation.
If you avoid an obstacle after the acute warning,
then the evasive steering support assists you by applying slight steering adjustment to correct
your steering wheel angle as long as you are ac­
t ively steer ing. Evasive steer ing support is availa­
ble at speeds between approximately 20 mph
(30 km/h) and 90 mph (150 km/h) .
Turn assist
When starting to drive and up to speeds of maxi­
mum 6 mph (10 km/h), the turn assist uses a
braking intervention to prevent your ve hicle from
colliding w ith an oncoming vehicle when turning
left or r ight (ava ilable in certa in countries). The
braking intervention causes your vehicle to stay
i n its lane . ..,.
119

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:E: ' Audi pre sense city
Description
Appl ies to: ve hicles with Audi pre sense c ity
W ith in the limits of the system, pre sense c ity
can warn you of impending coll is ions w ith
vehicles and pedestrians and initiate the applica­
b le braking maneuver if needed. Pre sense city is
active at speeds of approximately 6 mph (10 km/ h) and higher.
A pedestrian warning can occur at speeds up to
50 mph (85 km/h), and vehicle warnings can oc­
cur at speeds up to 155 mph (250 km/h). A pre
sense city braking maneuver is possible at speeds
up to SO mph (85 km/h).
Warnings
A ppl ies to: ve hicles with Audi pre sense c ity
The system recognizes various dangerous situa­
tions . The
early warning occurs if:
- a vehicle driving ahead brakes suddenly,
- your own vehicle approaches a significantly
slower vehicle or stationary vehicle in the direc­
tion of travel.
- a pedestrian is standing in the lane or is moving
into the lane.
When this warning occurs, it may only be possi­ ble to avoid a collision by swerving or braking
strong ly. The message
Audi pre sense.
¢ page 119, fig. 115 and a warning tone will
warn you about the danger .
Additionally, a jerk on the brakes may occur as an
acute warning when there is an impending colli­
sion. If you do not react to the acute warning, pre
sense city can brake to the point of complete de­
celeration within the limits of the system. This reduces the vehicle speed in the event of a colli ­
sion. The message
Audi pre sense. also ap­
pea rs .
The following functions are triggered in conjunc­
tion with pre sense basic/rear:
- Revers ible tensioning of the front safety belts .
- Closing the windows and sunroof*.
- Inflating the side bolste rs* in the seat backrest
and seat surface.
Assistance systems
Audi drive select*: the function is not active de­
pending on the mode selected .
A WARNING
--Pre sense city cannot overcome the laws of
physics. It is a system designed to assist and it cannot prevent a collision in every circum­
stance . The dr iver must always intervene.
The driver is always responsible for braking
at the correct time. Do not let the increased
safety provided tempt you into taking risks.
This could increase your risk of a coll is ion.
- The system can dep loy incorrectly due to
system-specific limits.
- To reduce the r isk of an accident, please
note that the camera does not always detect
eve ry object.
- Pre sense city does not react to animals,
crossing or oncoming veh icles, objects such
as bars, railin gs or railcars, and objects that
are difficult to detect¢.&.
in General infor­
mation on page 108.
- In trailer mode, the braking behavior of the
trai ler can be d ifferent than usual during au­
tomatic braking.
A_ WARNING
Pre sense city may be restricted or not availa­
ble in the following example situations:
- in heavy fog, rain, spray or snow
- when there are visua l obst ruct ions, such as
g la re, reflections or variations in light
- when it is dark
- if the camera window or the windshield is
dirty, iced over, damaged or covered
- when dr iv ing on snow, ice or loose ground
- in curves
- if the ESC was restricted or switched
off
- when towing a trailer
-when the driver's seat belt is unfastened
- up to ten seconds after switching on the ig-
nition
(D Note
Impacts or damage to the camera mount on
the w indshield can displace the sensor. Pre
sense city can be impaired by this. Have an
121

Assistance systems
Rear cross-traffic assist
Applies to: vehicles w ith rear cross -traff ic ass ist
Fig . 125 Example display
Fig. 126 Infotainment system: rear cross-traffic assist dis­
play
The rear cross-traffic assist can warn the driver of
a potential collision with approaching cross-traf­
fic when driving in reverse. Within its limits, the
system monitors the areas behind and next to
the vehicle using the radar sensors when leaving
a parking space
r::!.>page 127, fig. 122. Moving ob­
jects that are approaching, such as cars, are de­
tected
r::!.>fig. 125.
If the system detects critical cross traffic when
backing out of a parking space, it will react as fol­
lows:
- Visual indicator : an indicator appears in the In­
fotainment system display with a red arrow
symbol. The arrow points in the direction from
which the object is approaching
r::!.> fig. 126.
-Audible warning signal : a continuous tone may
sound as an additional indicator when driving in
reverse.
- Automatic brake activation : a brief activation
of the brakes may also warn you of a potential
collision with an approaching object.
130
Requirements for using the rear cross-traffic
assist:
- The parking aid must be switched on
c>page 138.
-Reverse gear must be engaged.
- The speed must not be higher than approxi-
mately 9 mph (15 km/h).
A WARNING
- The rear cross-traffic assist is an assist sys­
tem and cannot prevent a collision by itself.
The driver must always intervene. The driver
is always responsible for braking at the cor­
rect time.
- Please note that the rear cross-traffic assist
may activate the brakes unexpectedly. Se­
cure any cargo that you are transporting to reduce the risk of damage or injury.
- An additional brake activation may be trig­ gered within 20 seconds after an automatic
brake activation.
- If there is an acoustic warning signal from the rear cross-traffic assist, then the park­ing system may not warn you of detected
obstacles under certain circumstances.
- The view of the radar sensors may be im­
paired by leaves, snow, heavy spray or dirt.
Clean the area in front of the sensors
r::!.>page 127, fig. 122.
A WARNING
The rear cross-traffic assist is subject to limi­
tations and cannot warn you before every im­ pending collision:
- If the vehicle is too wide for the parking
space and covered by the neighboring
vehicles.
- People, such as cyclists, joggers, in line skat­
ers and pedestrians, may not be detected
under certain circumstances.
- If you are in a parallel parking space or diag­
onal parking space.
(D Note
Also read the information in r::!.>0 in General
information on page 128.

@ Tips
-You can cancel the automatic brake activa­
tion w ith increasing bra king fo rce if you ap­
ply the brakes yourse lf or accelerate cons id­
erab ly.
- In some situations, rea r cross-traffic assist
may warn yo u even if there is no cross traffic
i n a cr itical a rea , for examp le w hen back ing
i nto a parki ng space or ma neuver ing.
- The rea r cross-traffic ass ist also switches off
whe n you switch off the ESC.
- The rea r cross traffic assist switches on and
off thro ugh the pa rking aid
qpag e 138.
- The system is not available when towin g a
trailer.
Messages
A ppl ies to: ve hicles with Audi side assist
A message appears in the inst rument cluste r dis ­
p lay if the s ide ass ist swi tches off autom atically .
@j Audi side assist: malfunction! Please contact
Service
@j Audi side assist and exit warning : malfunc­
tion! Please contact Service
The system ca nnot gu ara nt ee th at i t w ill detec t
ve hicl es co rrectly and it has switched off. The
sensors have been moved o r are faulty . Have t he
system checked by an a uthorized Audi dealer or
author ized Audi Se rvice Facility s oon.
@j Audi side assist: currently unavailable. Sen­
sor vision restricted due to surroundings . See
owner 's manual
@j Audi side assist and exit warning : currently
unavailable. Sensor vision restricted due to sur­
roundings
The rad ar senso r vis io n i s im paire d. T he ar ea in
fr on t of the senso rs must no t be covered by bik e
r ac ks, st ic kers, leaves, snow or any other o bjects.
C lea n the area i n front of the senso rs, if necessa ­
ry
¢ page 127, fig. 122.
~ @j Audi side assist: currently unavailable. See ......
~ owner 's manual
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:E: ' Assistance systems
@j Audi side assist and exit warning: currently
unavailable. See owner's manual
S id e assi st cann ot be sw itche d on a t this tim e be­
cau se the re is a m alfu nct ion ( for e xample, the
ba tte ry c harge leve l may be to o low) .
@j Audi side assist: unavailable in towing mode
@j Audi side assist and exit warning: currently
unavailable. Towing mode
S ide assist switches off automatically when the
electrical connecto r in t he factory-installed trail­
er hitch is connected . There is no guarantee the
system will sw itch o ff when us ing a ret rofi tted
t rail er h itch . Do not u se side assist and the ex it
warni ng w hen tow ing a tra ile r.
[II Rear parking aid : obstacle detection restrict­
ed
The rear c ross-traffic ass ist is not available. E i­
t h er the ESC is sw itched off, or the rada r senso rs
may be cove re d by a b ike rack, stic ke rs, leaves,
snow o r other objects . Swi tc h the ESC on, or
cle an the area in fron t of th e senso rs if necessa ry
~ page 127, fig. 122. If thi s m essage co ntin ue s
to be displayed, dr ive imme dia tely to an author­
i z ed Audi deal er or author ized Audi Service Facili­
ty to have the ma lf u nction re paire d.
Night vision assist
Description
App lies to : vehicles wit h night vision assist
The night vision assist can detect, highlight and,
if necessary , warn about pedestrians and large
wild animals .
Nigh t vision assist he lps yo u when it is dark by
u sing an infra red came ra to monit or the a rea in
front of your ve hicle , w ith in the limits of the sys­
tem .
It can disp lay objec ts up to a dis tance of ap­
prox ima tely 1 000 feet (300 m) . T he thermal im ­
age dete cted by the came ra is show n in t he in­
s tru me nt clus ter di sp lay . W arm a reas appea r
lig hter a nd co ld ar eas ap pea r dar ker.
131

Intelligent Technology
Intelligent Technology
Electronic stabilization
control (ESC)
Description
Elect ronic stabilization control (ESC) supports
driver safety.
It red uces the risk of slipping and
improves driving stability. ESC detects crit ica l sit­
uations such as when the vehicle is oversteering
and understeering or the wheels are spinning.
The vehicle is stabilized by applying the brakes or reducing eng ine torq ue. When the ESC engages,
the
DJ ind icator light blinks in the instrument
cluste r.
The fo llow ing systems are integrated in the ESC:
Ant i-loc k bra king system (ABS)
ABS prevents the whee ls from locking when brak­
ing. The vehicle can sti ll be steered even during
hard brak ing. Apply steady pressure to the brake
pedal. Do not pump the pedal. A puls ing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assist system
The brake assist system can decrease brak ing dis­
tance . It increases braking power when the driver
presses the brake pedal quick ly in emergency sit­
uations . You must press and hold the b rake pedal
until the dangerous situat io n is over . In veh icles
with adapt ive cr uise control*, the bra ke assist
sys tem is more sensitive if the d ista nce detec ted
t o the vehicle dr iv ing ahead is too small.
O n ve hicles w ith act ivated and funct io ni ng night
vision assist*, the brake ass ist system ca n re­
spond more sens it ively if there is a warning.
Anti-Slip Regulation (ASR )
ASR reduces eng ine power when the drive wheels
begin spinning a nd adap ts the force to the road
conditions . This makes it easie r to start, acceler­
ate and dr ive up h ills.
Electron ic differential lock (EDL )
EDL applies the brakes to a wheel that starts
spinning and transfers the drive power to the
148
other driving whee ls. This function is not avai la ­
ble at higher speeds.
In extreme cases , ED L automat ica lly swi tches off
to keep t he b rake on the braked wheel from over ­
heating. The veh icle is still working correct ly. ED L
will switch on again automatically when condi­
tions have returned to normal.
Steering recommendat ion
The ESC he lps to stabilize the vehicle by chang ing
t h e s teer ing torque.
Select ive wheel torque control
Se lective wheel to rque cont rol is used when d riv­
i ng on curves. Braking is targeted toward the
whee ls on the inside of the curve as needed . T his
a ll ows mo re precise dr iving in cu rves .
Automatic post -collision braking system
The "automat ic post -collis io n braking system"
can help to reduce the risk of sliding and of addi­
tiona l co llisions after an acc ident. If the a irbag
contro l modu le detects a collision, the veh icle is
braked by the ESC.
The veh icle does not brake automatically if:
- the driver presses the accelerator pedal, or
- the ESC, the brake system or the veh icle elect ri-
cal system are not functioning.
A WARNING
- The ESC and its integrated systems cannot
overcome the lim its imposed by natura l
phys ical laws . This is espec ially important
on s lippery or wet roads . If the systems be­
gi n ac ting to stabilize yo ur vehicle, you
should immediately a lter your speed to
match the road and traffic conditions. Do
not let the inc reased safety provided tempt
you into taking risks. This could increase
your r isk of a coll is ion.
- Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when dr iv­
ing too close to objects ahead. The ESC and
its integrated systems cannot always pre­
vent co llisions -there is st ill a risk of acci­
dents!

Intelligent Technology
_&. WARNING
You should only switch offroad mode on or
switch ESC/ ASR off if your driving abilities
and the traff ic conditions perm it. There is a
r isk of slid ing.
- The stabilization function is limited when
offroad mode is switched on. The driving
wheels co uld spin and the vehicle could
swerve , especially on slick or slippery road
surfaces.
- T here is no vehicle stab ilizat ion when ESC/
ASR are switched off .
Hill descent assist
Hill descent assist makes it possible to drive
down a hill at a constant speed.
Fig. 155 Center console: hill descent ass ist button
.. To switch hill descent assist on, press the 1-

button. The LED in the button turns on.
.. Press the button again to switch it off. The LED
in the button turns off.
Hill descent assist brakes all four wheels auto­
matically in order to limit speed when driving ei­
ther forward or reverse on hills with a grade from approximately 6 to 60%. The wheels w ill not lock
up because the ABS remains activated.
When hill descent assist is on, the speed your ve­
hicle was traveling when it entered the hill is maintained. The assist begins shortly after you
start driv ing and continues up to approximately
19 mph (30 km/h). The driver can increase or de­
crease the vehicle speed w ith in these limits by
pressing the accelerato r or brake pedal.
H owever, there must be enough traction. Hill de­
scent assist
cannot function as expected, if for
150
example the hill is icy or if the surface is loose
~ & .
Active regulat ion of a speed up to approximately
19 mph (30 km/h) is signaled in the instrument
cluster by an indicator light •. T he indicator
light turns on when in the ready mode.
II.
The system does not work at speeds above ap­
proximately 19 mph (30 km/h). The system is
then in ready-mode . This is indicated by the LED
in the button turning on.
Hill descent assist is automatically activated un­
der the following conditions:
- the LED in the button turns on
- the vehicle speed is lower than 19 mph (30 km/
h)
-the hill angle is at least approximately 6%
_&. WARNING
-
- Always adapt your speed to the weather,
road and traffic conditions. Do not let the
increased safety provided tempt you into
taking risks, because this increases the risk
of an accident.
- The hill descent assist system cannot over­
come the laws of phys ics. Your driving style
must always be adapted to the current road
and traffic cond itions .
- Hill descent assist may not be able to hold
your vehicle at a constant speed under all
conditions while driving on a hill (for exam­
ple if ground under the vehicle is loose).
Brakes
New brake pads
New brake pads do not achieve their full braking
effect during the first 250 mi (400 km). They
must be "broken in" first. However, you can com­
pensate for the slightly reduced braking force by
pressing f irmly on the brake pedal. Avo id heavy
braking during the break-in period.
Wear
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions .
This is especially true if you are driv ing frequent ly
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style.
Operating noise
Noises may occur when bra king depend ing o n the
speed, b raking force and ou ts ide cond itions su ch
as tempe rature and humidity.
W et conditions or road salt
In ce rtain s ituat ions, for example after dr iving
through water, in heavy ra in or afte r washing
your car, the bra king effect may be reduced due
to moisture or ice on t he b rake ro to rs and br ake
pads . The br akes mus t be "dried" f irs t with a few
careful brake applications .
At highe r speeds and with the windsh ie ld w ipers
turned o n, the br ake p ads press against the br ake
r otors for a short amoun t of time . This action,
which is not felt by the driver, happens at regular intervals and ens ures a better reaction time for
the brakes in wet weather.
The braking effe ct can also be reduced if you are
d riving on salted roads and you do not apply t he
brakes for long periods of time . The layer of salt
on the bra ke rotors and pads must be worn off
f irst when the brakes are app lied.
Cor rosion
L eaving the vehicle par ked for long pe riods of
time, low mi leage and avoiding heavy braking
can cont ribute to corrosion on the brake rotors
and to dirty brake pads.
If you usually avo id heavy b raking or if there is
corrosion present, occasional heavy braking at h igh speeds is recommended to clean the brake
rotors and pads¢
A.
Brake system malfunct ion
If yo u no tic e th at the brake peda l travel has sud­
denly
increased, then a brake c ircuit in the dual­
circuit brake system may have malfunctioned. Drive to an aut ho rized Aud i dea le r or a uth orized
Aud i Service Facility immediately to have the
problem corrected. On the way there, drive with
reduced speed and keep in mi nd that you w ill
need a longer dista nce to stop and you w ill need
to p ress the b rake pedal harde r.
Intellig ent Technology
Low brake fluid level
When the br ake fluid level is low, malfu nctions in
the brake system may occur . The brake fluid level
is electronically monitored .
Brake booster
The brake booster ampl ifies t he p ress ure you ap­
ply to the brake pedal.
A WARNING
- Onl y ap ply the bra kes for the purpose o f
cleaning the brake sys tem when road and
traffic conditions permit. You must not en­
danger other roa d users . This increases the
risk of an accident.
-
- Never let the ve hicle roll while the engine is
stopped because this increases the risk of an
accident.
(D Note
- Never let the brakes "rub" by pressing the
peda l lightly when braking is not actually
necessary. This causes the b rakes to over­
heat and increases braking distance and
causes wear.
- Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear . This makes use of the engi ne
bra king effec t and relieves the brakes. If
you need to bra ke ad ditio na lly, bra ke in in­
t erva ls and not continuously.
(D Tips
- If the brake boos ter is not work ing , you
must press t he b rake peda l w ith much more
force than normal.
- If you retrofit your vehicle with a front s po il­
er, wheel covers or sim ila r i tems, make su re
t ha t the air flow to the fro nt wheels is n ot
i nt errup ted. Otherwise t he b rake system
c an become too hot .
151

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® Mud and snow capability
"M/5" or "M+S" indicates the tire
has properties making it suitable
to drive in mud or snow.~ indi­
cates a winter tire .
@ Composition of the tire cord
and materials
The number of plies indicates the
number of rubber ized fabric lay­
ers in the t ire. In general : the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the ti re . These incl ude
stee l, nylon, polyester and other
materials .
@Maximum permitted load
This number indicates the maxi­
mum load in kilograms and
pounds that the tire can carry .
@ Uniform tire quality grade
standards for treadwear,
traction and temperature resistance
T readwear , traction and tempera­
ture ranges¢
page 350.
@ Running direction
The arrows indicate the running
direction of un idirectional t ires .
You must always follow the speci- fied running direction
¢
page 365.
€3) Maximum permitted
inflation pressure
Wheels
T his number ind icates the max i­
mum pressure to which a tire can
be inflated unde r normal operat­
ing conditions.
Glossary of tire and loading
terminology
Accessory weight
means the combined we igh t (in
excess of those standard items
wh ich may be replaced) of auto­
matic transmission, power steer­
ing, power brakes, power win­
dows, power seats, radio, and
heater, to the extent that these
items are availab le as factory-in ­
stalled equipment (whether in­
stalled or not).
Aspect ratio
means the ratio of the height to
the w idth of the tire in percent .
Numbers of 55 or lower indicate a
low s idewall for improved steer­
ing response and better overall
handling on dry pavement .
335