2018 AUDI A7 brake sensor

Instruments and indicator lights
12
Engine oil level (MIN)*
¢page 15
Engine oil sensor
¢page 17
Engine warm-up request
¢page 17
Battery charge
¢page 14
Tank system
¢ page 17
Washer fluid level
¢ page 17
Windshield wipe rs
¢ page 17
Remote control key
¢page 68
Remote control key
¢ page 70
Battery in remote control key
¢page28
Bulb failure ind icator
¢page 18
Rear fog lights
¢page 18
Headlight range control system
¢page 18
Adaptive light*
¢ page40
Light/ rain sensor
¢page 18
Active lane assist*
¢ page 97
Suspension control*
¢ page 18
Transmiss ion
Q page 79
Transmiss ion
Qpage 79
Steering lock
Qpage 15 Brake booster
¢
page 16,
Central indicator light
¢ page 10
Electromechanical power steering,
dynam ic steer ing*
¢ page 124
Rear spoiler
¢page 125
A ir suspension*
¢ page 15
Sport d ifferent ial*
¢ page 18
Other indicator lights
---=----------
/:
Turn signals
¢ page 18
cruise control system
¢ page 84
Canada model s:
cruise contro l system
~ page 84
Adaptive c ruise cont ro l*
¢ page89
Adaptive cruise control*
Qpage 89
Adaptive cruise control*
Q page 89
Active lane assist*
Q page 97
Start/Stop system*
Q page 70
Start/Stop system*
Q page 70
Hig h beam ass istant*
Q page40
Hig h beams
¢ page40
BRAKE /((f)) Brake system
If this indicator light turns on, there is a malfunc-
tion in the brake system .
.,.

a co .... N
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The brake pads are worn. D rive to an autho rized Aud i dea le r o r authorized
Aud i Service Fac ility immediately to have the
brake pads c hec ked.
Applies to: USA models
The liJ ind icator light turns on together w it h the
1111 indicator light.
EPC Engine control (gasoline engine)
If the 13:a ind icator ligh t turns on if there is a
mal function in the engine control.
D rive s low ly to a n author ized Audi dealer or au­
thor ized Audi Se rvice Fac ility to have the eng ine
checked.
! )\, Engine speed limitation
Applies to: vehicles with engine speed limitation
(Pl Maximum engine speed: XXXX rpm
The engine speed is automatically lim ited to the
speed d isplayed in the instr ument clus ter. T his
p rotects t he engine from overheating .
The engine speed limitat ion deactivates once the
engine is no longer in the c ritical temperature
range and you have released the acce le rato r ped ­
a l once .
I f the engine speed lim itation was activated by
a n eng ine contro l ma lfunction, the
13:a ind icator
l ight also turns on . Make su re t hat the speed
does not go above the speed displayed . Drive to
an authorized Audi dealer or authorized A udi
Service Facility immediately to have the malfunc­
tion corrected.
(D Tips
Applies to: Sand RS models
The engine speed is limited when the eng ine
is cold
-the full engine output is not availa­
ble. When the engine is at operating temper­
ature, the red area in the tachometer moves
to a higher RPM range.
~ .. Engine oil sensor
~ • Oil l evel! Sen sor def ectiv e
\.J ' In strum ents and ind icator ligh ts
The sensor to check the engine oi l level has
failed. Drive to an authorized Audi dealer or au ­
thorized Audi Serv ice Facility immediately to have
the malfunction corrected.
f Engine warm-up request
n Pleas e warm up engin e
Fuel has entered the engine oil, either from low
outside temperatures or frequent short drives.
Drive until the eng ine is warm so that the fuel in
the engine o il w ill evaporate. Avoid hig h engine
speeds, full accelerating and heavy engine loads
when doing this .
Bu Tank system
D Please refuel
If the indicator light turns on for the first time
and the message appears, there are about 2 .6
gallons ( 10 liters) of fuel left in the tank .
D Fuel tank system mal funct ion! Contact deal ­
e r
There is a ma lfunction in the fuel tank system.
Drive to an authorized A udi dealer or authorized
Audi Service Facility immediate ly to have the
malfunction corrected.
(D Tips
For addi tional informat ion on ref ueling, see
¢ page 190 .
<9 Washer fluid level
t-"$ JJlease refill washer fluid
F ill the was her fl uid fo r th e windsh ie ld washer
system and the headlight washer system* when
the ignition is switched off ¢
page 203.
$-. Windshield wipers
m Windshield wiper defecti ve
T he re is a ma lfunction with the windshield wip-
ers.
..,.
17

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0 00 <..:l ' Audi adaptive cruise control
Description
Applies to: vehicles with Audi adaptive cruise control
Fig . 8 9 Detectio n ra n ge
The adaptive cruise co ntro l system is a comb ina­
tion of speed and d istance regula tion.
It assists
the dr iver by bot h regula ting the speed and
main taining a distance to the vehicle driving
ahead , within the limits of the system . If the sys­
tem detects and object ahead, adaptive cruise
control can brake and acce lerate your vehicle.
This makes driving more comfortable both on long stretches of highway and in stop-and-go
traffic .
What can adaptive c rui se control do?
T he adaptive cruise contro l system uses video, ra ­
dar and ultrasound . Objects driving ahead can be
recogni zed up to 650 feet (200 m) away.
On open roads with no traffic, it functions like a
cru ise control system . T he stored speed is ma in­
tained. When approaching an object ahead, the
adapt ive cruise control system automatically
brakes to match that object's speed and then
maintains the stored d istance. As soon as the
system does not detect a n object ahead, adaptive
cru ise con trol a cce lerates up to the stored speed .
In stop-and -go traff ic, adaptive cru ise control can
brake unt il the vehicle is s tat io nary and then be­
g in d riving aga in under certai n conditions
¢ page 90.
Aud i braking guard can warn you about an im ­
pending col lision and in itiate braking maneuve rs
q page92 .
Assi st a nce systems
Which functions can be controlled?
When yo u switc h adap tive cr uise control on, you
can set the current speed as the "contro l speed"
¢ page 89, Switching on/off .
When driving, yo u can stop cru ise cont rol
¢ page 91 or ch ange t he speed ¢ page 90 at
any t ime .
Yo u can also se t the distance to the object mov­
i ng ahead and set the d riving mode of the adap­
t ive cr uise con trol ¢
page 91.
General information
Applies to: vehicles with Audi adaptive c ruise con trol
Fi g. 90 Fro nt o f th e ve hicle : se nsors and v ideo ca mera
T he areas that conta in the radar and ult rasonic
senso rs and the video came ra
¢ fig. 90 mus t not
be cove red by stickers, deposits or o ther objects
because th is can in terfere with the funct ion of
the adaptive cruise contro l system and braking
guard . For i nformation on clea ning, see
¢ page 228. The same applies for any modifica­
tions made in the front area.
T he function of the adaptive cru ise control sys ­
tem and bra king g uard is limited under some
condit ions.
- Objects can on ly be detected when they are
w ith in the sensor range
¢ page 87 , fig . 89.
- The sys tem h as a limi ted abili ty to detect ob­
jects that are a shor t distance ahead, off to the
side of your vehicle or mov ing into your lane.
- Ob jects that are difficult to detect such as mo­
torcycles, vehicles with high g ro und clea rance
or an overhanging load are detected late or not
detected at all.
- When drivi ng through curves
¢ page 89 . .,.
87

Assistance systems
-With stationary objects ¢ page 89.
A WARNING
Always pay attention to traffic when adaptive
cruise control is switched on and braking
guard is active. As the driver, you are still re­
sponsible for starting and for maintaining
speed and distance to other objects. Braking
guard is used to assist you . The driver must
always take action to avoid a collision. The
driver is always responsible for braking at the
correct time.
- For safety reasons, do not use adaptive
cruise control when driving on roads with
many curves, when the road surface is in
poor condition and/or in bad weather (such
as ice, fog, gravel, heavy rain and hydroplan­
ing). Using the system under these condi­
tions increases the risk of an accident.
- Switch adaptive cruise control off tempora­
rily when driving in turning lanes, on ex­
pressway exits or in construction zones. This
prevents the vehicle from accelerating to
the stored speed when in these situations .
- The adaptive cruise control system will not
brake by itself if you put your foot on the ac­
celerator pedal. Doing so can override the
speed and distance regulation.
- When approaching stationary objects such
as stopped traffic, adaptive cruise control
will not respond and braking guard will have limited function.
- The adaptive cruise control system and
braking guard do not react to people, ani­
mals, objects crossing the road 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.
A WARNING
- Improper use of adaptive cruise control can
cause collisions, other accidents and serious
personal injury.
- Never let the comfort and convenience that
adaptive cruise control and braking guard
88
offer distract you from the need to be alert
to traffic conditions and the need to remain
in full control of your vehicle at all times,
- Always remember that the adaptive cruise
control and braking guard have limits -they
will not slow the vehicle down or maintain the set distance when you drive towards an
obstacle or something on or near the road
that is not moving, such as vehicles stopped
in a traffic jam, a stalled or disabled vehicle.
If registered by the radar sensors, vehicles
or obstacles that are not moving can trigger
a collision warning and if confirmed by the
video camera, an acute collision warning.
- Never follow a vehicle so closely that you
cannot stop your vehicle safely. The adap­
tive cruise control cannot slow or brake the
vehicle safely when you follow another vehi­ cle too closely. Always remember that the
automatic braking function cannot bring the
vehicle to a sudden or emergency stop un­
der these conditions .
- To prevent unintended operation, always
switch ACC off when it is not being used .
@ Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. That could affect the adaptive
cruise control system and braking guard .
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 258.

Ass is tance sy stem s
~-~ ---Di sta nce 1: this setting corresponds
to a distance of 92 ft (28 m) when traveling at 62
mph (100 km/h), for example (time between: 1
second) .
~-- ~--Di stan ce 2: this setting corresponds
to a distance of 118 ft (36 m) wh en traveling at
62 mph (100 km/h), for example (time between:
1.3 seconds) .
~--- ~-Distance 3: this setting corresponds
to a distance of 164 ft (SO m) when traveling at
62 mph (100 km/h), for example (time between:
1.8 seconds) .
~--- -~ Distance 4 : This setting corresponds
to a distance of 210 ft (64 m) when traveling at
62 mph (100 km/h), (time d istance of 2.3 sec­
onds) .
A WARNING
Following other vehicles too closely increases
the risk of collisions and ser ious personal in­
jury .
- Setting short distances to the traffic ahead
reduces the time and distance available to
br ing your vehicle to a safe stop and makes
it eve n mo re necessary to pay close atten­
t ion to traffic.
- Always obey applicable traffic laws, use
good judgment, and select a safe following
distance fo r the traffic, road and weather
cond itio ns.
(D Tips
-Distance 3 is set automatically each time
you switch the ignit ion on.
-Your settings are automatically stored and
assigned to the remote control key being
used.
Selecting the driving mode
Applies to: vehicles with Audi adaptive cruise control
.. Se lect the des ired driving mode in dr ive se lect
q poge 105 .
92
@ Tips
Your settings are automatically stored and as­
signed to the remote contro l key being used.
Request for driver intervention
Applies to: vehicles with Audi adaptive cruise control
Fig . 98 Ins trumen t cluster : request for dri ver in te rven tion
In certain situations, the system will request you
to take action :
-If the braking from the adaptive cru ise control
system is not eno ugh to ma inta in eno ugh dis­
tance to the object ahead .
The danger is indicated by
the . indicato r light
q fig. 98. An aud io signa l will also so und.
- Press the brake pedal to slow your vehicle down .
Audi braking guard
Applies to: vehicles with Audi adaptive cruise control
Fig. 99 Instrumen t cl uster : approac h warn in g
The braking guard uses radar sensors and a v ideo
camera .
It also functions within the limits of the
system when adaptive cru ise control is switched
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" N .... 0 00 \.J ' What can the braking guard do?
When detected in time, the system can assess
dangerous sit uat ions where an object a head
brakes suddenly or if your own vehicle is traveling
at a high speed and approaching an object that is
mov ing more slowly. The brak ing guard does not
react if it cannot detect the situation.
The system advises you of various dangero us sit­
uations :
- T he
distan ce warning occurs if you d rive too
closely to the object ahead for a long period o f
time . If the object ahead brakes strongly, you
would not be able to avoid a collision .
The.
indicator light appears as an indication for th is.
- The
app roach wa rning occurs when an object
ahead is traveling more s low ly or brakes
strongly. When th is warning occurs, it may on ly
be poss ible to avoid a co llision by swerving or
braking strongly . The danger is indicated by the
• ind icator light ~ fig . 99 . An aud io signal w ill
also sound .
If you do not react early enough or at a ll to a dan­
ge rous situation, the braking guard suppo rts you
w ith a brak ing intervent ion .
- If a co llision is imminent, the system will first
provide an
ac ute warning by braking sharply.
- If you do not react to the acute warning, the braking guard can increase the braking force
within the limits of the system
ll . Th is reduces
the veh icle speed in the event of a collision .
- The system can init iate comp lete decelerat ion
shortly before a collision
l l. Full deceleration at
high speeds occurs only in vehicles with adap­
t ive cru ise control and s ide ass ist (pre sense
plus).
- If the braking gua rd determines that you are
not brak ing st rongly eno ugh whe n there is an
i mpending co llision, i t can increase the brak ing
fo rce .
- T he pre se nse functions also engage whe n
the re is an impend ing
collision ~ page 95.
ll This is not availa ble in so me co untrie s.
A ss istance systems
Which functions can be controlled?
Yo u can swit ch t he b raking guard and t he d is ­
tance/approach warning on or
off in the Infotain ­
ment system
~ page 94, Settings in the Info­
tainment system .
A WARNING
--
Lack of attention can cause collisions, other
accidents and ser ious personal inj uries. The
braking guard is a n assist system and cannot
pr event a collision by itself . T he dr iver m ust
a lways inte rvene . The d river is always respon­
s ib le for b raking at the co rrect t ime.
- Always pay close atten tion to traffic, even
when the b raking gua rd is switched on. Be
ready to in tervene and be rea dy to take
comp le te co ntro l wheneve r ne cess ary. A l­
ways keep the sa fe and legal distance be ­
tween your vehi cle a nd ve hicl es up ahead .
- B raki ng g uard works w it hi n limi ts a nd will
not respond o uts ide the system limits, fo r
examp le when approach ing a stopped veh i­
cle or stationary obstacle (end of a traff ic
jam or vehicle that has broken down in traf ­
fic).
- Always remember that the radar sensor for
the brak ing guard works only within def ined
detection and range limits that may prevent
the proper detect ion of other vehicles.
- The radar sensor's function and range can
be reduced by rain, snow and heavy spray.
Mov ing vehicles up ahead may not be
promptly de tected or may no t be detected
at a ll.
- Reflective surfaces includi ng crash ba rriers
or tunne l entra nces may impair the function
of t he ra da r se nso r.
(D Tips
- You can cancel the braking with increas ing
force tha t is initiated by t he sys tem by brak­
ing yourse lf, by acce le ra ting not iceably or
by swe rving.
- Keep in mind that b raking gua rd can b rake
unexpectedly. A lways secure a ny cargo or
93

Assistance systems
objects that you are transporting to reduce
the risk of damage or injury.
Settings in the Infotainment system
A pp lies to: ve hicles w ith Audi a daptive cruise co ntro l
~ Se lect : the ICARI function button > (Car)* Sys­
tems
control button > Driver assistance > Audi
braking guard .
System -
switch the brak ing guard On /Off. When
you switch the ign ition on, the message
Braking
guard: Off
appears if the system is switched off.
Early warning -the distance and approach warn ­
ings in the display can be sw itched
On /Off .
(D Tips
-Your settings are automatically stored and
assigned to the remote control key being
u sed .
-If you restrict or switch off the ESC, the
braking guard also switches itse lf off
c;, page 121.
-Switch braking guard off when you are load ­
in g t he ve hicle onto a vehicle ca rr ier, t rain,
sh ip or other type of transportation. This
ca n prevent undesired warnings from the
braking guard system.
Messages
App lies to: ve hicles w ith Audi a daptive cruise co ntro l
Braking guard: Off
This message appears if the system is switched
off throug h the I nfota inment system . Otherwise,
if the system is turned off, the information ap ­
pears every time shortly after the start of the
trip.
The message also appears if the system is not
ava ilable due to a malfunct ion or if the ESC is
sw itched off
c:;, page 121 . If this is the case, the
system w ill not prov ide warnings about a possi­
b le co ll ision.
Braking guard: engaged
This message appears if a sharp brake pressure
was applied due to an acute warning.
94
ACC : Unavailable!
ACC and Audi braking guard: Unavailable
The system cannot guarantee that it will detect objects correctly and is sw itched off. The sensors
have been moved or are faulty . The pre sense
functions may also be affected . Drive to an au­
thorized Audi dea le r or aut horized Audi Service
Facility immediately to have the malfunction cor­
rected.
ACC: Currently unavailable. No sensor vision
ACC and Audi braking guard: Currently unavail­
able. No sensor vision
This message appears if the sensor v iew is ob­
structed, for examp le by leaves, snow, heavy
spray or dirt . Clean the sensors
c:;, page 87,
fig . 90 .
ACC : Currently unavailable. Gradient too steep
The road exceeds the maxim um possible angle
for safe adaptive cruise control operation. Adap ­
tive cruise control is switched off.
ACC : Only available in D, Sor M
Select the D/S or M selector lever position.
ACC: Currently unavailable. Parking brake ap ­
plied
The adaptive cruise control system switches off
automat ica lly if the parking brake is set.
ACC : Currently unavailable. Stability control
(ESC) input.
This message appears if the electro nic stabiliza­
tion control (ESC) is taking action to stab ilize the
vehicle. In th is case, adaptive cruise control
switches off automatically.
ACC off: Manual control!
This message appears when adaptive cruise con ­
trol cannot set the parking brake. Press the brake
pedal to prevent the vehicle from ro llin g.
• ••
Three white dots appear if a setting cannot be se­
l ected w ith the operating lever. For example, this
happens if adaptive cru ise control cannot start
driv ing automat ically in stop-and-go traff ic

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" N .... 0 00 \.J ' & WARNING
-Only wash the vehicle when the ignition is
off and follow the instructions from the ca r
was h operator to reduce the risk of acci­
dents.
-T o red uce the risk of cuts, protect yourself
from sha rp metal components when wash­
ing the underbody or the inside of t he wheel
hous ings .
-After wash ing the vehicle, the brak ing effect
may be delayed due to mo isture on the
brake rotors or ice in the w inter . This in­
c reases the risk of an acc ide nt. The bra kes
mus t be d rie d first w ith a few careful brake
app lic at ions.
@ Note
-If yo u wash t he veh icle in an automatic car
wash, yo u m ust retract the rear spoi ler if
necessa ry, and fold the exte rior m irrors i n
to re du ce the risk of damage. Powe r fo ldi ng
ex ter io r m irr ors* m ust only be fo lde d in a nd
o ut u sing t he power folding fu nction .
-
Care and cleaning
-To re duce the risk of pa int damage, do not
was h the vehicle in direct su nlight .
-To re duce the risk of d amage to the s urface,
do not use insect removing sponges, kitche n
sponges or s imilar items .
-Mat te finish painted veh icle components :
-To reduce the risk of damage to t he sur-
face, do not use po lish ing agents o r hard
wax.
-Neve r use protective wax. It can destroy
the matte finish effect .
-Do not place any st ickers or magnetic
s igns on vehicle parts painted w ith matte
finish paint . The paint cou ld be damaged
when the stickers or magne ts are re ­
m oved.
@ For the sake of the environment
Only wash the veh icle in facili ties s pec ia lly de­
s igned for tha t pur pose . This will reduce the
r isk of di rty wate r cont ami nated with o il from
ente rin g t he sewe r sys tem.
Cleaning and care information
When cleani ng and ca ring for in dividua l vehicle
componen ts, re fer to the follow ing tables. The
i nf ormation contained there is s imp ly recom ­
mendations. Fo r qu est ions or for components t
h at are not liste d, co n su lt an au tho riz e d Au di
dealer or au thor ized A udi Se rvice Fa cility. Also
f o llow the information fo und
in ¢ .&. .
Exterior cleaning
Component Situation Solution
Windshield wiper
Deposits Soft cloth with g
lass cleaner, ¢ page 46
blades
Headlights/
Deposi ts So
ft spo nge wi th a m ild soap sol utiona )
Tail lights
Sensors /
Deposits Sensors: soft cloth wit h solvent-free cleaning solut io n
camera lenses Camera le nses: soft cloth w ith a lcoho l- free cleaning so lu -
tion
Snow/ice H
and br ush/solvent-free de -icing spray
Wheels Road salt Water
Bra ke dust Acid-f
ree s pecial clea ning so lution
E xhaust tail pipes Road salt Water, clean ing so lution su itab le for s tainless stee l, if nee-
ess ary
229