2018 AUDI Q7 brake sensor

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::r ' Air suspension*
c> page24
Night vision ass ist*
c> page 126
Night vision ass ist*
c> page 126
Ad Blue*
c> page 314
Ad Blue*
c>page 314
Yellow indicator lights
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Central indicator light
c>page 18
Electronic Stabilization Control
(ESC)
c>page25
Ele ctr onic Stabi lization Cont rol
( E SC) ,/
c>page 25
Electronic Stabilization Control
(E SC)
c> page 143
Brake system
c>page26
USA models :
Anti-lock braking system (ABS)./
c>page25
Canada models :
Anti-loc k bra king system (ABS) ,/
c>page 25
Safety systems,/
c>page25
USA models :
Brake pads
c>page26
Canada models :
Brake pads
c>page26
Elect romecha nical pa rk ing bra ke
c>page22
T ire press ure
c>page348
Coc kpit o ver view
- '
Tire p ressure
_ c>page348
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Engine contro l
c>page 26
Engine contro l (diese l engine)
c> page 26
Malfunc tion Ind icator Lamp (M IL)
,I
c> page 318
Diesel pa rtic ulate fi lter*
c> page 317
En gine speed limitation
c> page26
En gine o il level (MIN) *
c>page 24
Engine o il level (MAX)
c> page 322
Engine o il sensor
c> page 26
Engine wa rm-up request
c> page 27
Battery cha rge
c> page 23
Tan k system
c> page 27
Washer flu id leve l
c>page 27
Windsh ield w ipers
c> page27
Remote control key
c>page 77
Driver 's door
c> page 27
Battery in remote control key
c>page 31
Bulb fai lu re indicator
c> page 27
He ad light range cont ro l sys tem
c> page 27
Ad aptive ligh t*
c> page28
19

Cockpit overview
A WARNING
Have the safety systems inspected immedi­
ately. Otherwise, there is a risk that the sys­
tems may not activate during a collision,
which increases the risk of serious injury or
death.
( CD ) Brake system
[I] Brakes overheating. Please shift to D
-
There was a heavy load on the brakes. Place the
selector lever in the "D/S" position in order to use
the engine braking effect and reduce the load on
the brakes.
~t~J/(O : Brake pads
II (USA models)/EiJ (Canada models) Brake
pads: wear limit reached. You can continue driv­
ing. Please contact Service
The brake pads are worn .
Drive to an authorized Audi dealer or authorized
Audi Service Facility as soon as possible to have
the malfunction corrected.
~ Engine control
II Drive system: malfunction! Please contact
Service
There is an engine control malfunction.
Drive slowly to an authorized Audi dealer or au­
thorized Audi Service Facility to have the engine
checked .
W Engine control (diesel engine)
Applies to: vehicles with diesel engines
The engine is preheating if the II indicator light
turns on when the ignition is switched on.
If the indicator light does not turn on or blinks
while driving, there is an engine control malfunc­
tion.
Immediately drive slowly to an authorized Audi
dealer or authorized Audi Service Facility to have
the malfunction corrected.
26
!?i Engine speed limitation
(II Maximum engine speed: XXXX rpm
The engine speed is automatically limited to the
speed displayed in the instrument cluster. This
protects the engine from overheating.
The engine speed limitation deactivates once the
engine is no longer in the critical temperature
range and you have released the accelerator ped­
al once .
If the engine speed limitation was activated by
an engine control malfunction, the
II indicator
light also turns on . Make sure the engine speed
does not go above the speed displayed, for exam­
ple when downshifting . Drive to an authorized
Audi dealer or authorized Audi Service Facility im­
mediately to have the malfunction corrected.
(D Tips
Depending on the engine: the engine speed
may be limited when the engine is cold -the
full engine output will not be available. When
the engine is at operating temperature, the
red area in the tachometer moves to a higher
RPM range.
~ ... Engine oil sensor
• Oil level system: malfunction! Please con­
tact Service
The sensor to check the engine oil level has
failed . Drive to an authorized Audi dealer or au­
thorized Audi Service Facility immediately to have
the malfunction corrected.
• Oil level sensor: oil change necessary. Please
contact Service
Fuel has entered the engine oil as a result of fre­
quent short drives. Avoid high engine speeds, full
acceleration and heavy engine loads. Drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the oil changed.
• Oil pressure sensor: malfunction! Please
contact Service
There is a malfunction in the oil pressure sensor.
Drive to an authorized Audi dealer or authorized .,.

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:E ' On open roads with no traffic, it functions like a
cruise control syst em . Th e stored spe ed is main­
tained. When approach ing a veh icle driving
ahead, the adaptive c ruise control system auto­
mat ica lly brakes to mat ch that vehicle's speed
and then maintains the set distance . As soon as
the system does not detect a vehicle driving ahead, adaptive cruise contro l accelerates up to
the stored speed.
In stop -and -go traff ic, adaptive cru ise control can
brake unt il the vehicle is stat io nary and then can
also start driving again automatically under cer­
tain condi tions ¢
page 106.
In traffic jams or stop -and -go traffic, traffic jam
assist can assist the driver¢
page 109 .
Which function s can be contr olled ?
When you switch adapt ive cruise control on, you
can set the current speed as the "control speed"
¢ page 104, Swi tching on/off.
When driving, you can stop c ruise contro l
¢
page 10 7 or change the speed ¢ page 106 at
any time.
You can a lso set the distance to the vehicle driv ­
ing ah ead and s et the driv ing mode of the adap­
tive cruise control¢
page 10 7.
General information
Applies to: ve hicles with Audi adaptive cruise co ntro l
•·•·•·a
Fig. 95 Fro nt o f th e vehi cle: se nsor s and video cam era
The areas w ith the radar and ultrasonic sensors
and the video camera¢
fig. 95 must not be cov­
ered by stickers, deposits or any other objects, because this can interfe re with the adapt ive
cru ise control funct ion. For information on clean-
A ssi st a nce systems
ing, see¢ page 351 . The same applies fo r any
modifications made in the front area .
In some dr iving situations, the adap tive c ruise
contro l func tion is restricte d:
- Veh icles can on ly be detected when they are
w ith in the sensor detection zones
¢ page 102,
fig. 94 .
-The system has a limited ability to detect
ve hicles that are a short dis tance ahead, off to
t he s ide of your veh icle or moving i nto yo ur
lane.
- Objects that are d ifficult to detect s uch as mo­
tor cycles, veh icles with high gro und clea rance
or an overhanging load are detected late or not
detected at all.
- When driving through curves
¢ page 104.
-W hen the veh icle is sta tionary ¢ page 104 .
A WARNING
Always pay atten tion to the traffic around you
when adaptive cru ise con trol is switched on .
As the driver, you are still responsible for your
own speed and the distance to other veh icles.
The adaptive cruise control is used to ass ist
you. The driver must always take action to
avoid a collision . The driver is always responsi ­
b le for braking at the correct time.
- For safety reasons , do not use adaptive
cru ise cont rol when the road surface is in
poor condi tion and/or in bad weather condi­
tions (such as ic e , fog, gravel, heavy rain and
hyd roplani ng) . Using the system under
these co ndi tions i ncreases the ris k of an a c­
cident.
- Sw itch adaptive cru ise cont rol off tempo ra­
r ily when dr iving in tu rning lanes, on e x­
p re ssw ay ex its (except if pre dictive control
is switched on) or in construct io n zones .
This prevents t he vehicle f rom acce le rating
to the stored speed when in these situa­
tions.
- The adaptive cruise contro l system will not
brake by itself if you put yo ur foot on the ac­
celerator pedal. Doing so can over ride the
speed and d istance regulat ion .
~
103

Assistance systems
-When approaching stationary obstacles
such as stopped traffic, adaptive cruise con­
trol will respond with limited function.
- Adaptive cruise control does not respond to
people, animals, or cross ing or oncoming
objects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard
rails, the entrance to a tunnel, heavy rain or
ice.
(D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody . Th is can impair the adaptive
cruise control. Have an authorized Audi dealer
or authorized Audi Service Facility check their
function.
@ Tips
For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
¢page 380.
In curves
A pp lies to: ve hicles w ith Audi adaptive cruise co ntrol
Fig . 96 Exam ple: driving into a curve
When driving into a curve ¢ fig. 96 and out of a
curve, the adaptive cruise control may react to a
vehicle in the neighboring lane and apply the
brakes. You can prevent that by pressing the ac­
celerator pedal briefly.
104
Stationary vehicles
App lies to : vehicles wit h Audi adap tive cruise control
))
Fig . 97 Exa mple : ve hicl e ch an gi ng la nes a nd statio nary ve ­
hicle
Within the limits of the system, adaptive cruise control can react to stationary vehicles ¢
fig. 97,
as long as you are driving slower than 30 mph
(SO km/h) and the system classifies the possible
passing maneuver as low. For example, if a vehi­
cle that was already detected
(D turns or changes
lane s, the adaptive cruise control reacts to the
stationary vehicle ahead of it@ .
Switching on/off
App lies to: vehicles wit h Audi ada ptive c ru ise contro l
Fig. 98 Operating lever: switching on and off
Fig. 99 In strumen t cluster: adapt ive cru ise control

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::r ' The road exceeds the maximum possible grade
for safe operation. The systems cannot be switch­
ed on.
Ill AC C with traffic jam a ssis t: only availabl e in
D, Sor M
Select the "D/S " or " M" selector leve r pos it ion.
Ill A CC w ith tr affic j am ass is t: currentl y un­
available . Parking brake applied
The systems sw itch off if you set the parking
brake . The systems are available again after you
release the parking brake .
llJ ACC with traffic jam a ssist: currentl y un·
av ailable. Stabili zation cont rol (E SC) input
This message appears if the electronic stab iliza ­
tion contro l (ESC) is taking action to stabilize the
ve hicle . The systems switch off in this scenario .
Ill ACC with traffic jam a ssis t: manu al control!
This message appea rs if the veh icle rolls back
when sta rting on a slight incl ine, even t hough the
systems are active . P ress t he b rake peda l to pre ­
ve nt the vehicle from rolling or sta rting to move.
IIJ ACC w ith tr affic jam a ssis t: curr entl y un­
availabl e. Downhill a ssis t activated
You cannot activate the system when hill hold as­
sist is act ive .
II!! ACC with traffic jam assist: manual control!
This message appears if the driver does not take
over steering after mu ltip le driver intervention
requests and the system switches off . The vehicle
brakes unt il it is stationary .
ii Traffic jam a ssis t : una vailable. S ee o wner' s
manual
The system can no longer ensure that t he ve hicle
w ill stay in the lane and sw itches off. Have yo ur
vehicle checked by an a uth orized Audi dea ler or
authorized Audi Service Facility if the ma lfunc ­
tion is continuous .
14§ Traffic jam assis t : Plea se take over steering!
This message appea rs as soon as the system
stops detecting steer ing activ ity when the system
limits are rea ched. Always keep yo ur hands on
Ass istance systems
the steering whee l so you can be ready to steer at
any time.
14§ Traffic jam a ssis t : currentl y unavailable .
Pl ea se f asten se at belt
T he system switches off when the drive r's safety
belt is unfastened.
Ill AC C: eff iciency assist not available in thi s
countr y
The adaptation to speed lim its and routes ahead
is not available in this country .
IIJ ACC: predictive control currentl y una vaila­
ble . See owne r's m anual
T he ad aptation to speed lim its and routes ahead
swi tches off at speed limits under 20 mph
(30 km/h) .
T he message ca n also appear if the adaptation to
speed limi ts and routes a head has a temporary
f ailure . Have your vehicle checked by an autho r­
ized Audi dea ler or authorized Audi Service Facili ­
ty if the malfunction is continuous .
Distance warning : malfunction! Please contact
S erv ice
T he system cannot gua rantee that it will detect
vehicles correct ly and it has switc hed off. The ra ­
dar sensors have shifted or are fa ulty . Drive to an
authorized Aud i dea ler o r authorized Audi Serv ice
Facility immediate ly to have the ma lfunction cor ­
rected .
Distance warning : currentl y unavailable . Sen sor
view re stricted due to surrounding s. See own­
e r' s manual
T his message appears if the rada r senso r view is
obstructed, for examp le by leaves, snow, heavy
spray or dirt. Clean the sensors
¢ page 103,
fig . 95 .
Distance warning : curr entl y unavailable . See
owner' s manual
This message appears if the system has a tempo­
r a ry fa il ur e. If this occurs m ultip le t imes, drive to
an a uth orized Aud i dea le r o r auth orized Aud i
Se rvice Facility immed iate ly to have the ma lfunc -
t ion corrected .
liJ,,
111

Ass is tanc e system s
ACC: Please fa sten seat belt
The system is not comp letely available if t he d riv­
er 's seat be lt is unfas tened .
Station ary obje ct ahead
This message appears if you would like to switch
the system on and there is a stationary object di­
rectly in front of your veh icle .
Doo r open
The system is not ava ilable when the door is
open .
Audi pre sense
Introduction
Applies to: ve hicles w ith Audi p re se nse
W ith in the limits of the system, the pre sense
functions can in it iate measures in particularly
dangerous s ituat ions to protect the ve hicle pas ­
sengers and ot her r oad users.
- Due to the interl ink ing of various vehicle sys­
tems , crit ica l dr iv ing s ituat ions can be detected
by
pr e s ense basic and measu res fo r preventa­
t ive occ upan t protect ion are can be initiated.
- T he
pre sen se front system uses the data from
t h e adapt ive cr uise control* radar sensors and
t h e camera to calc ulate the probab ility of a col ­
lision . Within the limits of the system, an im ­
pending collision with vehicles can be detected
in both urban and rural speed ranges. In this
case, the system warns the driver visually,
acoustically and with a jerk on the brakes if nec­
essary . If needed, it can initiate a partial or fu ll
deceleration to reduce the collision speed or to
avo id the co llision unde r ce rtain c ircumstances .
In conjunct ion with p re sense basi c/rear, the
front safety belts are also revers ibly tensioned
whe n needed. The pre sense front is also act ive
when adaptive cruise control* is switched o ff.
- Pr e se nse rear con tains pre sense basic func ­
tions. It uses the data from the side assist* ra­
dar sensors and calc ulates within the limits of
the system the probability of a rear end colli ­
sion with the vehicle behind you . Pre sense rear
is also active when s ide assist* is switched off .
112
-Within the limits of the system, pre sen se cit y
uses the camera data and can detect an im ­
pending collision with vehicles and pedestrians .
In this case, the system warns the driver visual­ ly, acoustical ly and w it h a jerk on the brakes if
necessary . If needed, it ca n initiate a full dece l­
erat ion to reduce t he coll is ion speed or to avoid
the collision under certa in circumstances . In
conjunction with p re sense basi c/rear, the front
safety belts are a lso reve rsibly te nsioned whe n
needed.
& WARNING
Read the genera l information inc::>.&. in Gen ­
eral information on page 103,
~ .&. in Gener ­
al information on page 121.
(D Tips
- C erta in p re sense funct io ns sw itch off when
driving in reve rse.
- Th e pre sense f unct io ns m ay no t be ava ila ­
ble i f th ere is a ma lfunct ion in the ESC sys ­
tem or t he airbag control module .
-Note that the reve rsib le belt tens ione r o n
the front passenger 's side deactivates when
the front passenger's airbag is deactivated.
- Switch the pre sense off when yo u are not
using public streets or when loading the ve ­
hicle onto a vehicle carrier, train, ship or
other type of transportat ion. This can pre­
vent an undesired intervention from the pre
sense system.
Audi pre sense basic
App lies to: vehicles wit h Audi pre sense basic
The pre se nse bas ic functions are activated at a
speed of approx imately 20 mp h (30 km/h) o r
highe r.
The following functions ca n be triggered u nder
certain co nd it io ns w it hi n the lim its of the sys­
tem:
- Tensioning of the safety belts (for examp le,
during heavy brak ing) : the front safety belts
have reversible belt te nsioners . If a collision
does not occur , the safety belts loosen slig htly
and are ready to tr igger aga in.
...

Ass is tanc e system s
your steering whee l ang le as long as you are ac­
tively steering . Evasive steering support is availa ­
b le at speeds between approximate ly 20 mph
(30 km/h) and 90 mph (150 km/h).
Tu rn as sist
When start ing to drive and up to speeds of maxi ­
mum
6 mph (10 km/h), the turn assist uses a
braking intervention to prevent your vehicle from
colliding with an oncoming vehicle when turning
left or right (available in certain countries). The
braking in tervent ion causes your vehicle to stay
in its lane .
A WARNING
-Pre sense front cannot overcome the laws of
physics. It is a system des igned to assist a nd
i t cannot prevent a collision in every c ircum­
sta nce. The d rive r must a lways i nte rvene.
T he driver is always responsib le for b raking
at the correct time. Do not let the increased
safety provided tempt you into taking risks .
This cou ld increase your risk of a collision.
- The system can deploy incorrectly due to
system -specific limits .
- Please note that the sensors and the camera
do not always detect all objects or lane
markings. This increases the risk of an acci­
dent.
- Pre sense front does not react to people, an­
ima ls or ob jects that are crossing the veh i­
cle's path or that are diff icu lt to detect¢
&
in General information on page 103.
-Reflective objects suc h as guard rails or the
entrance to a tunnel, heavy rain and ice can
affect the function of the radar sensors and
the system's ability to detect a coll is ion risk.
@ Note
The sensors can be displaced by impacts or
damage to the bumper, whee l housing and
underbody . Pre sense fro nt can be impa ired
by this. Have an autho rized Aud i dea le r or a u­
thorized A ud i Service Fac ility check the ir func­
tion.
l) Th is is not available in so m e co un tri es.
114
(D Tips
- You can cancel the braking with increasing
force that is initiated by t he system by brak ­
ing yourself, by acce lerating not iceably or
by swerving.
- Keep in mind that pre sense front can brake unexpectedly. Always secure any cargo or
objects that you are transporting to reduce
the risk of damage or injury .
- Specific pre sense front functions switch
off
when the ESC is restricted or sw itched off
¢ page 143 or the hi ll hold assist is switch­
ed on
¢ page 144.
Audi pre sense rear
App lies to : vehicles wi th Audi side ass ist
If the risk of a co llision with a vehicle ahead is de­
tec ted, the fo llow ing f unct ions can be t rigge red:
- Reversible tens ion ing of the front safety belts
at the corresponding speeds.
- Clos ing the windows and sunroof* .
- Inflating the side bo lsters* i n the seat backrest
and seat surface .
- Activat ing the emergency flashers with in-
creased frequency
ll .
The message Audi pre sense. ¢ page 113,
fig. 108
will warn you about the danger.
Audi drive select* : the function is not act ive de ­
pending on the mode selected .
A WARNING
-To reduce the risk of an accident, please
note that the s ide assist* radar sensors do
not a lways detect every object.
-
- Pre sense rear does not react to people, ani ­
mals or objects that a re c ross ing t he vehi­
cle's path or that are d ifficult to detect.
- Reflective objects such as guard ra ils, heavy
rain and ice can impair the function of the
radar sensors and the ability to detect a col-
lision risk .
~

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::r ' @ Note
The radar sensors can be displaced by impacts
or damage to the bumper, wheel housing and
underbody. Pre sense rear can be impaired by
this. Have an authorized Audi dealer or au­
thorized Audi Service Facility check their func­
tion.
(D Tips
- The pre sense rear functions switch off
when towing a trailer.
- The pre sense rear functions may also
switch off if there is a malfunction in the
side assist* system.
Audi pre sense city
Applies to: vehicles with Audi pre sense city
Description
Within the limits of the system, pre sense city
can warn you of impending collisions with
vehicles and pedestrians and initiate the applica­
ble 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
SO 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
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
strongly. The message
Audi pre sense.
r:=;, page 113, fig. 108 and a warning tone will
warn you about the danger .
Assistance systems
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
pears.
The following functions are triggered in conjunc­
tion with pre sense basic/rear:
- Reversible tensioning of the front safety belts.
- Closing the windows and sunroof*.
- Inflating the side bolsters* in the seat backrest
and seat surface.
Audi drive select*: the function is not active de­ pending on the mode selected.
_&. 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 driver 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 collision.
- The system can deploy incorrectly due to
system-specific limits .
- To reduce the risk of an accident, please
note that the camera does not always detect
every object.
- Pre sense city does not react to animals,
crossing or oncoming vehicles, objects such
as bars, railings or railcars, and objects that
are difficult to detect
r:=;, _& in General infor­
mation on page 103.
- In trailer mode, the braking behavior of the
trailer can be different than usual during au­
tomatic braking.
_&. 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 visual obstructions, such as
glare, reflections or variations in light
115