2016 AUDI A6 brake sensor

USA models:
Anti-lock braking system (ABS)
defective ./
¢page 19
Canada models:
Anti-lock braking system (ABS)
defective ./
¢page 19
Worn brake pads
¢page 19
Electromechanical parking brake
¢page 15
Tire pressure monitoring system
,I
¢page 249
Tire pressure monito ring system
¢page249
Electronic power control./ (alter­
native to
II )
¢page20
Glow plug system
(alternative
tom
¢page20
Malfunction indicator Lamp (M IL)
,I
¢page 20
Diesel particulate filter* clogged
¢page20
Engine speed lim itation
¢page 21
Engine oil level
¢page 17
Engine oil sensor
¢page 21
Request to warm eng ine by driv­
ing
¢page 21
Battery
¢page 16
Tank system
¢page 21
Windshield washer flu id leve l
¢page 21
Instruments and indicator lights
/:
Ad Blue,/'
Windshield wipers
¢p age 21
Remote control key
¢page 74
Remote control key
¢page 76
Battery in remote control key
¢page 31
Defective light bulb warning
¢page 21
Rear fog light(s)
¢ page 21
Headlig ht range control
¢pag e22
adaptive light*
¢page22
Light-/rain sensor faulty
¢page22
Audi active lane assist*
¢page94
Transmission
¢page 111
Transmission
-S tronic
¢page 111
Elect ronic steering column lock
¢page 17
Eng ine start system
¢p age 17
Brake booster¢ page 18, cen­
tra l ind icator light
¢page 12
Electromechanical steer ing, dy­
namic steering*./
¢page 190
Air suspension *
¢page 17
Sport differential*
¢page 22
Refill Ad Blue*
¢page 212
AdBlue ma lfunction*
¢page212
13

Audi adaptive cruise control and braking guard
Audi adaptive cruise
control and braking
guard
Introduction
Applies to vehicles: with Audi adaptive cruise control
The adaptive cruise contro l system assists the
driver by regulating vehicle speed and helping to
maintain a set distance to the veh icle ahead ,
within the limits of the system. If the system de­
tects a moving vehicle up ahead, adaptive cruise
control can brake and then accelerate your vehi­
cle. This helps to make driving more comfortable
both on long highway stretches and in stop-and­
go traffic.
The braking guard system can warn you about an
impending collision and initiate braking maneu­
vers
c::> page 90.
Adaptive cruise control and braking guard have
technical limitations that you must know, so
please read this section carefully, understand
how the system works and use them properly at
all times.
General information
General information
Applies to vehicles: with Audi adaptive cruise control
Fig. 88 Front of the ve hicle: sensors and video camera
The areas that contain the radar and ultrasonic
sensors and the video camera
c::> fig. 88 must nev­
er be covered by stickers or othe r objects or ob­
structed with dirt, insects, snow or ice that will
interfere with the adaptive cruise control system
and braking guard. For information on cleaning,
84
refer to c::> page 203. The same applies for any
modifications made in the front area .
The function of the adaptive cruise control sys­
tem and braking guard is limited under some
conditions:
- Objects can only be detected when they are
w ithin sensor range
c::>page 86, fig. 91.
- Th e system has a limited ability to detect ob­
jects that are a short distance ahead, off to the
side of you r vehicle or moving into your lane .
- Some kinds of vehicles are hard to detect; for
example motorcycles, veh icles with high
ground clearance or overhanging loads may be
detected when it is too late or they may not be
detected at all.
- When driving through curves
c::> page 85.
-Stationary objects c::> page 85.
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 act ion to avoid a collision . The
driver is always respons ible for braking at the
correct time.
- Improper use of adaptive cruise control can cause collisions , other accidents and serious
personal injury.
- Never let the comfort and convenience that
adapt ive cru ise control and braking guard
offe r dist ract you from the need to be alert
to traffic conditions and the need to remain
in fu ll contro l of your ve hicle at all times,
- Always remember that the adaptive cruise
control and braking guard have limits -they
will no t 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, s uch as vehicles stopped
in a traff ic jam, a stalled or disab led vehicle.
If registered by the radar sensors, vehicles
or obstacles that are not moving can trigger
a co llision warning and if confirmed by the
video camera, an acute co llision warning.

.... N
0 CJ ' M I.Cl ....
Audi ada pti ve c ruise contr ol and br akin g gu ard
-For safety reasons, do not use adapt ive
cruise contro l when driv ing on roads with
many curves, when the road surface is in
poor condit ion and/or in bad weather (such
as ice, fog, gravel, heavy rain and hydroplan­
ing) . Us ing the system under these condi­
t ions could result in a collision .
- Switch adaptive cruise contro l off tempora­
rily when driving in turn ing lanes, on ex­
pressway exits or in const ruc tion zones. This
preven ts the vehicle from accelerating to
the set speed when in these situat ions .
- T he adapt ive cr uise con trol system will no t
br ake by i tself if you pu t your foot on the ac­
celerator peda l. Doing so can override the
speed and distance regulation.
- Whe n approaching stat ionary obje cts such
as stopped traffic, adapt ive cruise control
will not respo nd and braking guard will have
limited function .
- The adaptive cruise control system and
brak ing guard do not react to peop le, ani­
ma ls, objects crossing the road or oncom ing
objects.
- The function of the radar sensors can be af­
fected by reflective objects such as guard
rai ls, t he entrance to a tunnel, heavy rain or
ice.
- Never follow a veh icle so closely that you
cannot stop your vehicle safely . The adap­
t ive cr uise control cannot slow or brake the
vehicle safely when you follow another veh i­
cle too close ly. Always remember th at the
au tom atic b raking function ca nnot br ing the
vehicle to a sudden or emergency stop un­
der these conditions .
- T o preven t unintended operation, alw ays
switch AC C off when i t is not be ing used.
(D Note
The sensors can be displaced by impacts o r
damage to the bumper, whee l housing and
underbody. That co uld affect the adaptive
cru ise con trol sys tem and braking guard .
Have your a uthorized Audi dea ler or author·
ized Aud i Service Facility check their function.
In curves
Applies to vehicles: w ith Audi adapt ive cruise control
F ig. 89 Exampl e: d ri ving into a curve
When driving into a curve¢ fig. 89 and out of a
curve, the adaptive cruise control may react to an
object in the neighboring lane and app ly the
brakes . Yo u can prevent that by pressing the ac­
ce le rator peda l br iefly.
Stationary objects
Applies to vehicles : w ith Audi adaptive cruise control
Fig. 90 Exa mple : object changing la nes a nd s tatio nary ob ·
j e ct
T he adaptive cruise control system only reacts to
objects that are moving or that the system has
already detected as moving. For example, it can
react when a vehicle that has already been de­
tected @ turns or changes lanes, but adaptive
cruise control does not react to a stationary veh i­
cle @.
85

Audi adaptive cruise control and braking guard
Audi braking guard
Description
Applies to vehicles: w ith Audi adaptive cruise co ntro l
Fig. 98 Instrument cluster: approach warning
Braking guard uses radar sensors and a video
camera . It also functions within the limits of the
system when adaptive cruise control is switched
off .
What can braking guard do?
When detected in time, the system can assess
situations when a vehicle ahead brakes suddenly
or if your own vehicle is traveling at a high speed
and approaching a vehicle up ahead that is mov­
ing more slowly . Braking guard does not react if
it cannot detect the situat ion.
The system advises you of various situations:
- The
distance warning is given if you are too
close to the vehicle ahead for a long time.
If the
vehicle ahead brakes sharply, you will not be
able to avo id a coll is ion. The indicator light.
in the display comes on .
- The
approach warning is given when a detected
vehicle up ahead in your lane is moving much
more slowly than you are or if it brakes sharply .
When this warning is g iven, it may only be pos­
sible to avo id a collision by swerving or braking
sharp ly. Th e indicator light. and indicator in
the display will warn you about the danger
qfig. 98. You will also hear an acoustic signal.
If you do not react fast enough or do not react at
all to t he situation, braking guard will intervene
by braking.
l ) Thi s is not ava ilab le in some co un tri es .
90
-If a collision is imminent, the system will first
provide an
acute warning by briefly and sharply
app lying the brakes.
- If you do not react to the acute warning, brak­
ing guard can brake with increasing force with­
in the limits of the system. This reduces the ve­
hicle speed in the event of a collision.
- The system can initiate maximum braking
shortly before a co llision
1
) . Full deceleration at
high speeds occurs only in vehicles with adap­
tive cruise control and side assist (pre sense
plus) .
- If the braking guard senses that you are not
braking hard enough when a collision is immi­
nent, it can increase the braking force .
- The pre sense functions also engage when a
collision is imminent
qpage 184.
Which functions can be controlled?
You can switch braking guard and the distance/
approach warning on or off in the MMI
q page 91, Settings in the Infotainment sys­
tem .
A WARNING
Lack of attent ion can cause collisions, other
accidents and serious personal injuries . The
b ra king guard is an assist system and cannot
prevent a collision by itself. The driver must
always intervene . The driver is always respon­
sib le for braking at the correct time .
- Always pay close atten tion to traffic, even
when the braking guard is switched on. Be
ready to intervene and be ready to take
comp lete contro l whenever necessary. Al­
ways keep the safe and legal distance be­
tween your vehicle and vehicles up ahead.
- Braking guard works with in limits and will
not respond outside the system limits, for
example when approaching a stopped vehi­
cle or stationary obstacle (end of a traffic
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 Ill>

Audi adapt ive cruis e control and braking gua rd
de tect ion and range limits t hat may prevent
the proper detection of other veh icles.
- The radar sensor's function and range can
be reduced by rain, snow and heavy spray.
Moving veh icles up ahead may not be
promptly detected or may not be detected
at all .
- Reflective surfaces including crash barriers
or tunnel entrances may impair the funct ion
of the radar sensor.
(D Tips
- You can cancel the brak ing with increasing
force that is init iated by the system by b rak­
i ng yourself, by accelerat ing noticeab ly or
by swerving .
- Braking guard error messages ¢
page 91.
-Keep in mind that braking guard can brake
unexpected ly. Always secure any cargo or
objects that you are transport ing to reduce
the risk of damage or injury .
Settings in the Infotainment system
Appl ies to vehicles: w ith Audi a daptive cruise co ntro l
~ Select: t he ICARI function button > (Car )* Sys ­
tems
con trol b utton > Driver assi stan ce > Audi
braking guard .
S ys tem -
Switch the braking guard On/ Off. When
you swit ch the ig nitio n on, the message
Brak ing
guard: Off
appears if the system is swi tched off .
Prewarning -The d istance and app roach warn ­
in gs i n the display can be switched
On/ Off.
(!) Tips
-Your settings are automatically stored and
ass igned to the remote cont rol key being
used.
- If you rest rict or sw itch off the ESC, the
braking gua rd also sw itches i tself off
¢ page 188 .
- Switch braking guard off when yo u are load ­
i ng t he ve hicle on to a vehicle ca rr ier, t rain,
s hi p or other type of transportation . This
c a n prevent undesired warnings from the
br aking gua rd system.
Messages
App lies to vehicles: wi th Audi ada ptive c ruise con trol
Braking guard : off
T his dr iver message appears if the system is
tu rned off via t he i nfot ainment. O therwise, if the
system is t urne d off, the information appears ev­
ery time shortly after t he start o f the trip .
T he driver message a lso appea rs if the system is
not avai lab le due to a m alfu nction o r if the ES C i s
not switched on¢
page 188 . If th is is the case,
the sys tem wi ll not provide warnings abou t a
poss ib le collision .
Braking guard : a ctivated
This dr iver message appears if sharp brake pres­
su re was applied due to an acu te warning .
ACC: Unava ilable!
ACC and Audi braking guard: not available
T he system cannot detec t moving vehicles up
ahe ad co rrectly and is swi tc h e d off. The senso rs
have been displaced or are not working proper ly.
T he Audi pre sense funct ions may also be affect ­
e d. D rive to yo ur authorized A udi deal er or au­
thori zed Audi serv ice facility immediately to have
the malfunction corrected .
ACC: currently unavailable. No senso r vi sion
ACC and braking guide : current ly unavailable .
No s ensor vi sion
Th is message appears if the senso r view is ob­
structed, for examp le by leaves, snow, heavy
sp ray or dirt. Clean the sensors ¢
page 84 ,
fig. 88.
ACC : Currently unavailable. Grad ient too steep
The road exceeds the maximum poss ible angle
for proper adaptive cruise co ntro l operat ion .
Adaptive cruise contro l is swi tched off .
ACC: Only available in D, Sor M
Select the D/S or M selector leve r position.
ACC : currently unavailable . Parking brake ap ­
plied
91

Care and cleaning
-To reduce the risk of cuts, protect yourself
from sharp metal components when was h­
ing the underbody or the inside of the wheel
housings .
- After washing the vehicle, the braking effect
may be delayed due to mo isture on the
brake rotors or ice in the winter . The brakes
must be d ried first w ith a few careful b rake
applications.
(D Note
- If you wash the vehicle in an automatic car
wash, you must fold the exte rior m irrors in
to reduce the risk of damage to the mirrors.
Power folding exte rior m irrors* must on ly
be fo lded in and out us ing the powe r folding
f u nct ion.
- To p revent paint damage , do not wash the
vehicle in di rect sunlight.
- To reduce the risk of damage to the surface,
do not use insec t remov ing sponges, kit chen
sponges or similar items. - Matte finish painted vehicle components:
-To reduce the r isk of damage to the sur-
face, do not use polis hing agents or hard
wax.
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint. The paint could be damaged
when the stickers or magnets are re­
moved.
@ For the sake of the environment
Only wash t he ve hicle in facilities spec ially de­
signed for that pu rpose . This will reduce the
r isk of dirty wate r contaminated with o il from
ente ring the sewe r system.
Cleaning and care information
When clean ing and c aring for ind ividua l vehicle
components, refer to the fo llow ing tables. The
information contained there is simply recom- mendat
ions. For questions or for components
t h at are not listed, refer to an author ized Audi
dealer. Also follow the informat ion found in¢&.
Ext erio r cl eaning
Component Situ ation Solution
Wind shield wip er
Deposits ¢ page 52, Cleaning windshield wiper blades
blade
s
Headligh ts/
Deposits Soft sponge with a mild soap solutiona >
tail light s
S en sors /
Deposits Sensors: soft cloth with solvent-free cleaning solution
cam era le nses Camera lenses: soft cloth with alcohol-free cleaning solu-
tion
Snow/ice H
and br ush/solvent-free de-icing spray
Wh eels Road salt Water
Brake dus t Acid-free special
cleaning solution
Ex haust tail p ipe s Road salt Water, clean ing solution su itable for stainless steel, if nee -
essary
Decorative parts / Deposits Mild
soap solution a), a cleaning solution suitable for stain-
trim less stee l, if necessary
204

Fuses
Driver side cockpit fuse
assignment
F ig. 211 Driver 's side of t he cockpit : fuse pa nel w it h plastic
clip
Fuse panel @ (black )
No . Equipment
Electromecha nica l powe r stee ring, trai ler
1 hitch, io nizer, sw itch st rip, sea t heat ing
(rear), ele ctromech an ical parking br ake
Horn, climate control system, Gateway,
2 automatic dimming interior rearv
iew mir-
ror
4 Parking aid, headlight range adjustment
5 Dynamic steering, Electron
ic Stabilization
Control (ESC)
6 Headlights
7 Adaptive cru ise control
8 Front passenger's seat senso rs, airbag
9 Gateway
1 0 E
ngine sound, night vision ass ist, garage
door opener (Homelink), parking aid
1 1 Video camera im age pro cessing
12 Headlights
1 3 Steeri ng col umn sw itch module
14 Term inal 15 ( luggage compartment)
260
Fuse panel @ (black)
15 Terminal 15 (engine compartment)
16 Starte r
Fuse panel @ (brown )
No. Equipment
1 Infotainment
2 Infotainmen t
3 F
ront passenger's seat
5 A
irbag, Elect ronic S tabiliza tion Con trol
( E SC)
6 Ant i- theft alarm system
7 Electromechanical pa rking brake
8 Inter io r li ghts
9
Windshie ld video camera heating, light/
rain sensor
10 Lumbar support (dr iver's seat)
11 Driver's seat
12 Elec tronic stab ilizati on con trol
13 Horn
1 4 H eadlights
15 Front seat heating
16 Dynamic stee ring
Fuse panel © (red)
No . Equipment
1 C lutch peda l
2 Fuel pump
3 Brake light sensor
4 AdB
lue (diese l eng ine)/engine aco ustics
5 Rear door
6 Fr
ont door
7 Electronic stab ili z at ion con trol
8 Windshie ld wiper motor
9 Headlight washer system
10 Inter
ior lig hting, climate control system
1 1 Headlights
12 Sunroof

..... N
0 CJ ' M I.Cl ......
Front passenger side
cockpit fuse assignment
Fig. 212 Front passenger's sid e of t he cockpit fuse pane l
with plastic cl ip
Fuse panel @ (red)
No. Equipment
1 Infotainment, CD changer
2 Infotainment
(display)
Fuse panel@ (brown)
No . Equipment
1 Climate
control system
2 Climate control
system (blower)
3 Diagnostic interface
4 Electrical ignition lock
5 Electronic steering column lock
6 Steering column sw itch module
7 Power steering column adjustment
8 Light switch
9 Head-up display
10 I
nst rument cluster
1 1 Infotainment, DVD changer
Fuses
Luggage compartment
fuse assignment
Fig. 213 Luggage compartment: fuse panel with plastic
clip
Fuse panel @ (black )
No. Equipment
1 Tra
iler hitch/220 volt socket
2 Tra ile r hitch/climatized cup holder
3
Tra iler hitch/adjusting front passenger's
seat from the rear
4 Elec trom echan ica l parking brake
5 Electromec hanical parking brake
6 Front door (front passenger's side)
7 Rear exterior lighting
8 Central locking, closing aid
9 Seat heating (front)
1 1 Seat heating
(rear), climate control system
12 Tra iler hitch
Fuse panel @ (red)
No . Equipment
1 Left
safety belt tensioner
2 R ight safety belt tensioner
3 Ad Blue tank (diesel engine)/fuel pump
4 Ad Blue tank (diesel engine)/engine mount
(gasoline eng ine)
s
Sensor-controlled luggage compartment
lid
6 Air suspension, adaptive dampers
7 Rear door (front passenger's side)
8 Tail lights
9 Luggage compartmen t lid
261