2018 AUDI A7 brakes

Trail er to wing
must attach additiona l exterior mirrors . Adjust
them so you have a sufficient visibility behind
you .
Exterior lighting
Follow the lega l regulat ions regard ing the light ­
ing eq uipment on your trailer . Conta ct an author ­
ized Audi dealer or authorized Audi Service Facili­
ty for more information.
Before start ing to drive, check a ll l ight ing equip­
men t on the hitc hed trailer.
The headlig ht range contro l adjusts automatical­
ly to the light range of the headl ights.
Safe ty chain s
Make sure the safety chains are correctly applied
when pulling a trailer . The chains should hang
enough so t hat the trailer can dr ive around
curves. However, they must not touch the
g round .
Air su spension
Applies to: vehicles with air suspension
The air suspension must be at the standard vehi­
cle height before you set the tongue weight on
the trailer a nd h itch the trailer ¢@ ,
¢page 107,
Raising/lowering the vehicle.
For ve hicles w ith a factory-installed tra iler hitch,
the air suspension trailer mode will automat ically
sw itch on if you connect the trailer cable to the
socket.
For ve hicles w ith a retrof itted trailer hitch, you
must switch on the air suspension trailer mode
manually . Select in the Infota inment system:
ICARI function button > ( Car )* s yste m s contro l
button
> V ehicle setting s > Air su spen sion : trail ­
e r > On .
Switch it off again after tow ing a tra ile r.
You can also switch off tra iler mode ma nually
while driving, for example, when using a bicycle rac k system .
If you have to drive through difficult road condi­
tions, you can raise the vehicle aga in after hitch­
ing the t rai ler or after adjust ing the tongue
weight .
82
@ Note
Applies to: vehicles with air suspension
-Changes i n temperature or load can affect
the height of the vehicle .
- Set the air suspension to the standard veh i­
cle he ight, otherwise the applicable tongue
we ight no longer appl ies to your veh icle.
(D Tips
- Use chocks when park ing on inclines if the
trai ler is loaded.
- We recommend also hav ing the vehicle in­
spected between the inspection intervals if
you are towing a trailer frequently.
- Avoid driv ing with a trai ler dur ing the veh i­
cle break-in per iod.
Driving with a trailer
Driving with a trailer requires extra caution.
Sp eed
Adhere to t he lega l speed lim its . Fo llow the legal
regu lations
specific to the country.
As the speed increases, the dr iv ing stab il ity of
t h e tra ile r decreases. Therefore you should not
exceed the max imum lega l speed lim it w hen
t h ere are unfavorab le road, weather and/or wind
conditions. This especia lly applies when driving
downh ill.
Yo u m ust always red uce your speed as soon as
you notice even the slightest swinging motion o f
the trai ler . Never try to "straighten out" the trai l­
er by acce lerating.
The we ight d istr ibution is very poor if the vehicle
is empty and the trai ler is loaded. However if you
must drive under these circumstances, then drive
especially slowly .
Brakes
B rake in a time ly manner. Downs hift befo re dr iv ­
i ng down hill so that the engine can assist with
braking ¢&. .
When using a trailer w it h over run bra kes, fi rst
bra ke gently t hen q uick ly. This red uces the r isk of
j erking while braking if the trailer wheels lock up .
IIJJ,,

a co .... N
" N .... 0 00 \.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 00 \.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 lights turn on when the brakes a re
ap plied a utomat ica lly .
Changing speed
Applies to: vehicles with cruise control system
.. T o inc rease o r decrease the speed in incre ­
ments, tap the lever toward
0 10 <=> page 84 ,
fig . 86 .
.. To inc rease o r decrease the speed qu ickly, ho ld
the leve r in the
010 direction until the de­
s ired 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 S
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. 86 .
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
Deactivating temporarily
.. Press the brake pedal, or
.. Press the lever into position @(not clicked into
p lace) <=>
page 84, fig . 86, or
.. Dr ive fo r longer t han S m inutes faster than S
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 .
Lap timer
Introduction
Applies to: vehicles with lap timer
Yo u can record and eva luate lap t imes with the
l ap timer <=>
page 86, fig. 87. The time is meas­
ur ed in m inutes, seconds and 1/10 seconds. The
ho urs are also shown when the lap time exceeds
60 m inutes . T he maxim um indiv id ual measure­
me nt is 99 ho urs. A maxim um of SO laps can be
r ecorded.
.,.
85

a co ,...,
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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

Ass is tance sy stem s
@ Indicator light s
Ill -Adaptive cruise cont rol is switched on. No
objects a re detected ahead. The stored speed is
maintained.
• -An object ahead was detected. The adaptive
cruise control system regulates the speed and
distance to the object ahead and accelerates/
brakes automatica lly .
fai -Adaptive cruise control is switched on. An
object ahead was detected . Your vehicle rema ins
stopped and w ill not start driving automat ica lly.
• -The automatic braking is not enough to
maintain a suffic ient distance to a n object ahead.
You must intervene
¢ page 92, Request for
driver intervention.
© Instrument cluster display
I f adaptive cruise contro l is not shown in the in­
strumen t cluster display, yo u can call it up using
the multifunction stee ring wheel b uttons
¢ page 20.
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 vehicl e -no object was detected ahead .
Whit e vehicle -an object was detected ahead.
Red veh icle -request for driver intervention
¢ page 92 .
Both
arrow s on the scale © indicate the distance
to the object ahead . No arrow appea rs when the
vehicle is on an open road and there is no obje ct
ahead. If an object is detected ahead, the arrow
moves on t he scale.
The green zone on the scale indicates the store
distance. For information on changing the dis ­
tance, refer to
¢ page 91. If the distance se­
lected is exceeded or not reached, the arrow
moves into the red zone on the sca le.
A WARNING
If you press the ISE TI button when driving at
speeds below 20 mph (30 km/h), the vehicle
accelerates automat ically up to 20 mph (30
90
km/h), wh ich is the minimum speed that can
be set .
(D Tips
-If you switch the ign it ion or the adaptive
cruise control system off, the set speed is
erased for safety reasons .
- The electronic stabilization control (ESC) and the anti-slip-regulation (ASR) are auto­
matically switched on when the adaptive
cruise control is switched on.
Changing the speed
Applies to: vehicles with Audi adapt ive cruise control
0
f
jJ
0
Fig . 95 Operat ing lever: chang ing the speed
.,. To increase or reduce the speed in increme nts,
tap the lever up or down.
.,. To increase or decrease the speed qu ickly, hold
the lever up or down until the red LED @ reach­
es the des ired
speed ¢ page 89 , fig. 94.
After each change, the new stored speed appears
briefly in the information
line¢ page 89, fig. 94
@ .
Driving in stop-and-go traffic
App lies to: vehicles with Aud i adapt ive cru ise control
The adaptive cru ise cont rol 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 the sys­
tem . The Start/Stop system* can be used as usu-
al. ..,.

a co ,...,
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0 00 <.,;) ' Driving manually
.,. Tap the accele rator pedal , o r
... pull the lever toward you into position @.
@ Tips
If an obstacle is detec ted when your veh icle
starts moving, the driver intervention request
appears
~ page 92. Your vehicle will drive
more slow ly when starting . This may also
happen in some situations when there is no
apparent obstacle.
Interrupting cruise control
App lies to: vehicles with Audi adaptive cruise contro l
Fig. 96 Sele ctor l eve r
Requirement: adaptive cruise contro l must be
sw itched on.
Overriding cruise control
.,. T o accelerate manually , p ull the lever toward
you into pos ition
@ and hold it there . T he mes­
sage
ACC: over ride appears. Or
... Press the accelerator pedal.
... To resume c ru ise control, release the lever or
take your foot off the acce lerator pedal.
Canceling crui se control while dri ving
.,. Move the leve r into posit ion @. The message
ACC: standb y appears. Or
... Press the brake pedal.
... To resume the stored speed, move the lever in ­
to posit ion
@ .
Canceling cruise control when stopp ed
... Push the lever away from you into position @.
The message
ACC : standby appears.
A ssi st a nce systems
... To resume cru ise contro l, press the brake peda l
and pu ll the l ever toward you into pos ition @ .
A WARNING
It is dangerous to activate cruise control and
resume the stored speed when the current
road, traffic or weather cond itions do not per­
mit this . This increases the risk of an accident .
Setting the distance
Applies to: vehicles with Audi adaptive cru ise control
F ig . 97 Operat ing lever: sett ing t he d ist ance
... T ap the switch to display the current set dis ­
tance ¢
fig. 97.
N (X) N 9 :I:
~
... To increase or reduce the d istance in incre­
ments, tap the switch aga in to the r ight or left .
The distance between the two vehicles will change i n the inst rumen t cluste r display .
When approaching an object ahead , the adaptive
cruise contro l system brakes to match that speed
and then adjusts to the set d istance .
If the object
ahead accelerates, adaptive cruise contro l w ill al­
so accelerate up to the stored speed .
The higher the speed, the greater the distance in
meters ¢.&. . The Distance 3 setting is recom­
mended . That is equa l to the gene ral recommen­
da tion of "half the speed shown on the speedom ­
eter" .
The distances provided a re specified values . De­
pending on the driv ing s ituation and the way the
object ahead is dr iving, t he actual d istan ce may
be more or less tha n these ta rget distan ces .
The various symbo ls for the time increments ap­
pears briefly in the info rmation line @
~ page 89, fig. 94 when you change the settings . .,.
91

a co .... N
" 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

Intelligent Technology
Intelligent Technology Electronic stabilization
control (ESC)
Description
Elect ronic stabili zation control ( ESC) suppo rts
driver safety. It red uces the risk of slipping and
improves dr iving stabi lity. ESC detects crit ica l sit­
uations such as the vehicle overstee ring and un­
dersteeri ng or the w heels are sp inning. The vehi­
cle is stabilized by app lying the brakes or reduc ­
i n g e ngine torque . As soon as the ESC is active ly
regula ting, t he
Ii) indicato r light blink s in the in­
s trumen t clus ter.
The fo llow ing systems are in tegrated in the ESC:
Anti-lock braking system (ABS)
ABS p reve nts the whee ls from lock ing whe n brak ­
ing. The vehicle can st ill be steered even d uring
hard brak ing. Apply steady press ure to the bra ke
pedal. Do not pump the pedal. A puls ing in t he
b rake pedal indicates that the system is act ing to
s tabili ze the vehicle .
Brake assist system
The brake assist system can dec rease brak ing dis­
tance. It inc reases brak ing power when the d river
presses the brake pedal q uick ly in eme rgency sit­
uations . You must press and hold t he b rake pedal
until the dangerous si tuatio n is ove r. In veh icles
w ith adapt ive c ruise con trol*, the bra ke assist
sys te m is more sensitive if t he di stan ce detec ted
t o the veh icle dr iv ing a head is too small. On
ve hicl es w ith ac tivated and funct io ni ng night vi ­
sion assist*, the brake assist system can respond mo re sensit ively if there is a warning .
Anti-Slip Regulation (ASR)
ASR reduces eng ine power when the drive w heels
beg in sp inning a nd ad ap ts the force to the road
conditions. This makes i t easie r to sta rt, acceler ­
ate and dr ive up h ills.
Electronic differential lock (EDL)
ED L appl ies the bra kes to a w heel that st arts
sp inning and transfe rs th e dr ive powe r to the
120
othe r driving whee ls. This func tion is no t ava ila ­
ble at higher s peeds .
I n extre me cases , EDL au tomat ic al ly swi tches off
to keep t he b rake o n the br aked whee l from ove r­
h eating. The ve hicle is still wo rking co rrect ly. EDL
will switch on agai n automatically when co ndi ­
tions have returned to normal.
Steering recommendation
The ES C he lps to s tabili ze th e vehicle by ch ang ing
t h e steer ing torque.
In veh icles wi th dyna mic steer ing*, ESC a lso
h elps to stab ilize the steer ing in cr it ica l sit ua ­
t ion s.
Selective wheel torque control
Se lective wheel to rque con trol is used when driv­
i ng o n curves . The fron t whee l on the inside of
t h e curve or bo th whee ls on the i nside of th e
cu rve are braked se lective ly as needed. This al­
l ows mo re prec ise dr iving in curves .
Automatic post -collision braking system
The "automa tic post -coll is io n braking system"
can hel p t o reduce the risk of sl iding and of addi­
tiona l co llisions after an acc iden t. If th e a irbag
c ontro l modu le de tec ts a c ollisi on above a cert ain
vehicle speed, the ve hicle is brak ed by the ESC.
The veh icle does not brake automatically if :
- the drive r presses t he acce lerator pedal, or
- the bra kin g force generate d by the presse d
brake pedal is greater than the b raking force
that wo uld be in itiated by the system, or
- the ESC, the bra ke system or the ve hicle elect ri­
cal system are not functioning.
A WARNING
- The ESC and its integ rated systems can not
overcom e the lim its imposed by natura l
p hys ica l laws . Thi s is esp ec ially impo rtan t
on s lippery or wet roa ds. If the sys te m s be­
g in a cting to stab ilize y our vehicle, y ou
s ho uld immedi ately alter y o ur speed to
match the road an d traffic condi tions . Do
not let the increased safety provi ded tem pt