2018 AUDI A6 brake

a co .... N
" N .... 0 0 \.J ' Engine coolant temperature
Pay att ention specifica lly to the coolan t tempera ­
t ure d isp lay when t here are high outside tempe r­
atures, an d when dr iv ing on long inclines
~ page 9 . Shift to a highe r gear in a timely man ­
ne r.
A WARNING
Constant b raking causes the brakes to ove r­
heat and substant ially reduces b raking per­
formance, increases brak ing distance or caus­
es complete fa ilu re of the brake system.
-
Trailer towing
83

a co .... N
" N .... 0 0 \.J ' -Please note that unconsciously "resting"
yo ur foot on the accelerator pedal prevents
the cruise control from braking. Th is is be­
cause pressing the acce lerator pedal over­
rides the cruise control system .
- If a brake system ma lf u nction such as over­
heating occu rs when the c ruise contro l sys­
tem is switched on, the braking function in
the system may be switched off . The rest of
t h e cruise control system f unction s remain
ac tive as long as
the @;(IM~ (USA model s) /
l'I (C anada models) indi cator light is on .
(D Tips
The brake ligh ts turn on when the brakes a re
ap plied a utomat ica lly .
Changing speed
Applies to: vehicles with cruise control system
.. To inc rease o r decrease the speed in incre ­
ments, tap the lever toward
0 10 <=> page 84 ,
fig . 87 .
.. To inc rease o r decrease the speed qu ickly, ho ld
the leve r in the
010 direction until the de­
s ir ed speed is displayed.
You can a lso press the acce lerator pedal down to
increase yo ur speed, for example i f you want to
pass someone. The speed you set earlier w ill re­
sume as soo n as you release t he accelerator ped­
al.
However, if you exceed your saved speed by 5
mph (10 km/h) for longe r th an 6 mi nutes, the
cru ise control system tur ns off temporar ily .
The
green @;(i)~i~ (USA models) !l'I (Canada mod ­
e ls) indicator light in the speedometer tu rns off
and the stored speed is maintained.
Preselecting the speed
Applies to: vehicles with cruise control system
You can pre-select your desired speed when the
vehicle is stationary.
.. Switch the ign ition on.
.. Pull the lever into position @<=> page 84,
fig. 87 .
A ss istance systems
.. To increase or decrease the speed, tap the lever
toward
0 10 .
.. To store t he speed d isp layed, release the leve r.
T his func tion makes it possible , fo r example, to
save the spee d you want before driving on the
highway. Once on the highway, activate the
c ruise contro l by pull ing the leve r
towa rd @ .
Switching off
Applies to : vehicles with cruise control system
Deact ivating temporarily
.. Press the brake pedal, or
.. Press the lever into position @(not clicked into
p lace) <=>
page 84, fig . 87, or
.. Dr ive fo r longer t han 5 m inutes faster than 5
mph (10 km/h) above the stored speed .
Switching off completely
.. Press the lever into position @(clicked into
p lace), or
.. Switch the ignit ion off .
The speed you stored will be ma intained if the
cruise contro l has been switched off temporari ly .
To resume the stored speed, re lease the brake
peda l and pull the lever to
position @.
Switching the ignition off wi ll erase the stored
speed.
A WARNING "---
You should only resume the sto red speed if it
i s no t too high fo r existing t raff ic conditions .
Otherw ise you can inc rease the risk of an acci­
d ent .
85

Ass is tance sy stem s
Audi adaptive cruise
control
Description
A pp lies to: ve hicles w ith Audi adaptive cruise co ntro l
F ig. 88 Detection range
The adaptive cruise control system is a combina­
tion of speed and distance regulation.
It assists
the dr iver by bot h regula ting the speed and
maintaining 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 accelerate your vehicle.
This makes driving more comfortable both on
long stretches of hig hway and in stop-and-go
traffic .
What c an adapti ve crui se control do ?
The adaptive cruise contro l system uses video, ra­
dar and ultrasound. Objects driving ahead can be
recognized up to 650 feet (200 m) away.
On open roads with no traffic, it functions like a
cruise control system . The stored speed is main­
tained. When approaching an object ahead, the
adaptive cruise control system automatically brakes to match that object's speed and then
maintains t he stored d istance . As soon as the
system does not detect an object ahead, adaptive
cru ise control acce lerates up to the stored speed .
In stop-and-go traffic, adaptive cru ise control can
brake unt il the vehicle is stat ionary and then be­
g in driving aga in under certain conditions
c::> page89.
Audi braking guard can war n you about an im ­
pending collision and initiate brak ing maneuve rs
<=:> page 91 .
86
Which functions can be controlled?
When you switch ad apt ive cr uise control on, you
can set the current speed as the "control speed"
c::> page 88, Switching on/off.
When dr iving, you can stop cruise cont rol
¢ page 90 or ch ange the speed c::> page 89 at
any time.
You can also set the distance to the object mov­ i ng ahead and se t the driving mode of t he adap­
tive cr uise
control¢ page 90.
General information
App lies to : vehicles wi th Audi adap tive c ruise con trol
Fig. 89 Fro nt of th e vehicle: senso rs a nd video camera
The areas that contain the rada r and ultrasonic
senso rs and the video camera
c::> fig . 89 must not
be covered by stickers, deposits or o ther objects
because this can interfere with the function of
the adapt ive cruise control system and braking
guard . For info rmation on clea ning, see
¢ page 221. The same applies for any modif ica­
tions made in the front area.
The function of the adaptive cru ise control sys­
tem and braking guard is limited under some
cond itions.
- Objects can only be detected when they are
w ith in the sensor range
<=:>page 86, fig. 88.
- The system has a l imi ted abili ty to detect ob­
jec ts that are a sho rt d istance ahead, off to the
side of your vehicle or moving into your lane.
- Obje cts that are d ifficult to detect such as mo­
torcycles, veh icles with high ground clea rance
or an overhanging load are detected late or not
detected at all.
- When driving through curves
c::> page 88. IJ>

a co .... N
" N .... 0 0 \,;J ' -With stationary objects ¢ page 88.
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
Assistance systems
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.
(D Tips
For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
¢page 250.
87

Assistance systems
In curves
Applies to: vehicles with Audi adaptive cruise contro l
Fig. 90 Example: dr ivi ng into a curve
When driving into a curve ¢ fig. 90 and out of a
curve, the adaptive cruise control may react to an
object in the ne ighbor ing la ne and apply the
brakes. You can p revent that by pressing the ac­
celerator pedal b riefly.
Stationary objects
Applies to: vehicles with Audi adaptive cruise control
F ig . 91 Example: object changi ng lanes and stationa ry o b·
j e ct
The adaptive cruise contro l system only reacts to
objects that are moving or that the system has
already detected as moving. For examp le, it can
react when a vehicle that has already been de­
tected @turns or changes lanes, but adaptive
cru ise control does not react to a stat ionary vehi­
cle @.
88
Switching on/off
Applies to: vehicles with Audi adaptive cruise control
Fig. 92 Operat ing lever: switc hing on and off
Fig. 93 Instrument cl ust er: a daptive c ruise control
You can set any speed between 20 mph (30 km/
h) and 95 mph (150 km/h) .
Indicator lights and messages in the instrument
cluster disp lay inform you about the current sit­
uation and setting .
An additional indicator appears in the head-up
display*.
Switching adaptive cruise control on
.,.. Pull the lever toward you into position @
¢ fig. 92. ACC: standby appears in the display.
Storing the speed and activating regulation
.,.. To store the cur rent speed, press the ISET I but­
ton
¢ fig. 92. The stored speed is shown in the
speedometer in the LE D line @and appears
briefly in the info rmation
line @¢ fig. 93 .
.,.. To activate the regulation while stationary, also
press the brake pedal.
Switching adaptive cruise control off
.,.. Push the leve r away from you into position@
until it clicks into place. The message
ACC : off
appears.

a co ,...,
N
" N ,...,
0 0 <..:l ' @ Indicator lights
•-Adaptive cru ise control is switched on . No
objects are detected ahead. The stored speed is
maintained .
•-An object a head was de tected. The adap tive
cr uise control system regula tes the speed and
d istance to the ob ject ahead and acce lerates/
brakes a utomatically.
r-j -Adaptive cru ise con trol is switched on . An
object ahead was detec ted . Your vehicle rema ins
stopped and w ill not s tart dr iv ing automat ica lly.
• -The automatic brak ing is no t enough to
main tain a sufficient distance to a n object ahead.
You must inte rvene
¢ page 91, Reques t for
driver intervention.
© Instrument cluster display
I f adaptive cruise control is not shown in the in­
strument cluster disp lay, yo u can call it up using
the mu ltifu nction stee ring wheel b uttons
¢ page 19.
Based on the graphics in the d isp lay, you can de­
termine if the system is ma inta ining a distance to
the object ahead and what that distance is.
No vehicle -no object was detected ahead .
White vehicle -an object was detected ahead.
Red vehicle -request for driver intervention
¢ page 91 .
Both arrow s on the scale © indicate the dis tance
to the object a head . No ar row appea rs when the
ve hicle is on an open road and there is no object
ahead. If an object is detected ahead, the arrow
moves on the scale.
T he green zone on the sca le ind icates the s tore
d ista nce . For information on changing the dis ­
tance, refer to
~ page 90. If the distance se ­
lect ed is exce eded or not reached, th e arrow
moves into the red zone on the scale.
A WARNING
If you press the ISE TI button when d riving at
speeds below 20 mph (30 km/h), the vehicle
accelerates automat ically up to 20 mph (30
A ssi st a nce systems
km/h), wh ic h is the minim um speed that can
be set .
(D Tips
-If you switch the ignit ion or the adaptive
cruise control system off, the set speed is
erased fo r safety reasons .
-The e lectronic stabilization control (ESC)
and the anti -slip -regulation (ASR) are auto­
matically switched on when the adaptive
cruise cont rol is switched on.
Changing the speed
Applies to: vehicles with Audi adaptive cruise control
0
f
•
0
Fi g. 9 4 Operating lever : chang ing t he sp eed
.,. To increase or reduce the speed in increments,
tap the lever up o r down.
.,. To increase or decrease the speed quick ly, hold
the lever up or down until the red LED @reach­
es the des ired
speed ¢ page 88, fig . 93.
After each change, the new sto red speed appears
briefly in the information
line ¢ page 88 , fig . 93
@ .
Driving in stop-and-go traffic
Applies to: vehicles with Audi adapt ive cru ise control
The adaptive cru ise control system also assists
you in stop-and-go traffic .
Stopping automatically
If an object ahead stops, your vehicle will brake
and stay at a stop, within the limits of t he sys­
tem . The Sta rt/Stop system* can be used as usu -
al.
..,_
89

Ass is tance sy stem s
Driving manually
.,. Tap the acce lerato r pedal, o r
.,. pull the lever toward you into position @.
(D Tips
If an obstacle is detected whe n your veh icle
starts moving, the driver intervention request
appears
¢ page 91. Your vehicle will drive
more s low ly when starting. This may also
happen in some situations when there is no
apparent obstacle.
Interrupting cruise control
App lies to: veh icles with Audi adaptive cruise control
Fig . 95 S ele ctor leve r
Req uirement: adaptiv e cruis e control must be
sw itched on.
Overriding cruise control
.,. T o accelerate manually , p ull the lever toward
you into position @and ho ld it the re . T he mes­
sage
ACC : over ride appears. Or
.,. Press the accelerator pedal.
.,. T o resume cru ise control, release the lever or
take your foot off the accelerator pedal.
Canceling c ruise contr ol while driving
.,. Move the lever into posit ion @. The message
AC C: standby appears . Or
.,. Press the brake pedal.
.,. T o resume the stored speed, move the lever in­
to position
@ .
Canceling crui se contr ol when stopped
.,. Push the lever away from you into position @.
The message
ACC: standby appea rs.
90
.,. To resume c ruise contro l, press the brake peda l
and pull the lever toward you into position @ .
A WARNING
It is dangerous to activate cruise control and
resume the stored speed when the current
road , traffic or weather conditions do not per­
mit this . This increases the risk of an accident .
· Setting the distance
Applies to: vehicles with Audi adapt ive c ruise control
Fig. 96 Operat ing lever: settin g th e d ista nce
.,. T ap the switch to display the current set dis­
tance
c> fig . 96.
N a, N 9 ::c
~
.,. To increase or reduce the dis tance in incre­
ments, tap the sw itch again to the r ight or left .
The d istance between the two vehicles will
change in the instrumen t cluster display .
When app roaching an object ahead, the adaptive
c ruise contro l system brakes to match that speed
and then adjusts to the set distance . If the object
ahead ac celerates, adaptive c ruise co ntro l w ill al­
so ac ce lerate up to the stored speed .
The higher the speed, the greater the distance in meters
c> ,&. . The Distance 3 setting is recom­
mended. That is equa l to the general recommen­
da tion of
" hal f the speed shown on the speedom­
ete r" .
The distances provided a re spec ified values . De­
pending on the driv ing s ituation and the way the
ob je ct ahe ad is dr iv ing, the actual dist ance may
be more or less than these ta rget distan ces .
The var ious symbols for the time inc rements ap­
pears briefly in the info rmation line @
¢ page 88, fig . 93 when you change the settings. II>

a co ,...,
N
" N ,...,
0 0 <..:l ' ~-~ ---D istanc e 1: this setting corresponds
to a distance of
92 ft (28 m) when traveling at 62
mph (100 km/h), for examp le (time between: 1
second).
~ --~--Distance 2: this setting corresponds
to a distance of 118
ft (36 m) when traveling at
62 mph (100 km/h), for examp le (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 examp le (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 distance of 2.3 sec­
onds).
A WARNING
Following other vehicles too closely increases
the risk of collisions and ser ious perso nal in­
jury.
- Setting short distances to the traffic ahead
reduces the t ime and distance available to
br ing your vehicle to a safe stop and makes
it even mo re necessary to pay close atten­
t ion to traffic.
- Always obey applicable traff ic laws, use
good judgment, and select a safe following
dis tance fo r the traffic, road and weathe r
condit ions .
{]) Tips
-Distance 3 is set automatically each time
you switch the igni tion on.
- You r settings are automatically stored and
assigned to the remote control key being
u sed.
Selecting the driving mode
A pplies to: ve hicles with Audi adaptive cruise co ntro l
.. Select the des ired driving mode in dr ive se lect
¢ page 104.
Assi st a nce systems
(D Tips
Your settings are automatically stored and as­
s igned to the remote control key being used.
Request for driver intervention
Applies to : vehicles wi th Audi ada ptive c ruise control
Fig. 97 Instrument cluster: request for driver intervention
In certain si tuations, the system will request you
to take action:
- I f the brak ing from the ad apt ive cru ise con trol
sys tem is not enough to ma intain eno ugh dis­
tance to the object ahead .
T he da nger is indica ted by
the . indica tor light
¢ fig. 97. A n aud io signa l wi ll also so u nd .
- Press the brake pedal to slow your vehicle down.
Audi braking guard
App lies to : vehicles with A udi ada ptive cr uise control
Fig. 98 Inst rume nt cluste r: approach warnin g
The braking guard uses radar sensors and a video
camera . It also functions w ith in the limits of the
system when adaptive cru ise control is switched
~ ~
91