2018 AUDI S4 cruise control

Ass is tance sy stems
-The system only considers traffic s igns that
give a speed limit.
-The permitted speed can be exceeded if the
adaptation to a speed limit is incorrect. The
driver is responsible for adhering to the per­
mitted speed .
-The speed at which a curve is driven through
does not necessarily match your own dr iving
sty le . Brake the vehicle yourself when need­
ed to reduce the risk of a n accident.
(D Tips
-If a speed limit is detected, the stored
speed is also adjusted in the speedometer
LED line when the adaptive cruise control is
not act ive.
-The adaptation by the system depends on
the driving mode set in drive select* .
-Switching off pred ictive control , for exam­
ple when dr iv ing in low traffic zones, does
not ca use the adaptive cru ise control to
switc h off .
-After switching on the ignit ion, the system
i nit ially adj usts to a speed of 80 mph
(130 km/h) when driving onto highways
without a spee d limit . T he n the system ad­
ju sts to the last speed stored by the driver.
- T here is no adapt ation to speed limits when
driv ing through highway inte rchanges an d
when d riving on o r off the ex pres sway.
- T here is no pre dic tive con trol at speed limits
u nder 20 mph (30 km/h).
- If a speed limit is only detected by the cam­
e ra and the actual speed is s ignific antly
higher, the n the speed limit will bli nk i n t he
dis play u nti l you have reached the re qui red
speed
¢ page 105 .
-Incorrect v alues from the camera -based
traffic sign recognition* or outdated naviga­
tion system map data can lead to incorrect
or implausible contro l.
- When route guidance is switched o n, the
system adapts to the route provided by the
navigation system. Driving without route
g uidance or leaving a route can resu lt in im­
plaus ible control.
116
-T he system switches of f when ou tside of a
road system that is recorded in the naviga­
t ion system map data .
Setting predictive control
Applies to: vehicles with Audi adapt ive cru ise control and p re­
dictive efficiency ass ist
.. Select in the Infotainment system: IMENU ! but­
ton
> Vehicle > l eft control button > Driver as­
sistance
> Audi adaptive crui se control > Pre·
dictive control.
Set speed limit -
when this function is switched
on, the system adjusts to the sp eed limits. This
can a lso be done with at to lerance, if desired. In
th is scenario, you may fall below or exceed the
set speed in favor of increased efficiency .
Adaptation to route ahead -when this function
is sw itched on, the system adapts to the route
ahead (such as reducing the speed in curves).
Traffic jam assist
Description
Applies to: vehicles with traffic jam assist
Trofficjom assist supports the driver when driv­
ing in traffic jams or in heavy traffic.
F ig . 119 Turn s ig na l leve r: tra ffic ja m ass ist button
Fig. 12 0 Instrument cl uste r: traff ic jam ass ist

a co .... N ,....
N .... 0 0
3 co
In a speed range under 40 mph (65 km/h), traffic
jam assist can help to keep the vehicle within a lane calculated by the system. W ith in the lim its
of the system, the system controls the steering
automatically when adapt ive cruise control is
switched on . Since traffic jam assist is only an as­
sist system, the driver must always keep his or
her hands on the steer ing whee l and be ready to
steer. The d rive r ca n override the control at any
time by actively steering.
The system is designed for driv ing on express­
ways and highways.
Switching traffic jam ass ist on and off
... Press the button to switch the system on and
off<=> fig. 119.
... To turn the system off completely, select in the
Infotainment system:
I MENU ! button> Vehicle
> left contro l button > Driver a ssistance > Traf­
fic jam a ssist .
If traff ic jam assist was deactivated through the
Infotainment system, you can cont inue operating
the act ive lane assist using
the<=> fig. 119 button
<=> page 126. The traffic jam ass ist functions are
no longer available.
Requirements for using traffic jam assist:
-Traffic jam assist must be switched on in the
Infota inment system .
-Adaptive cruise control must be switched on
and act ive
c;, page 110 .
Always switch off traffic jam assist in the
following situations:
-When increased attention is needed from the
driver .
-In poor weather conditions such as snow or
heavy rain .
-When driving on roads in poor condition .
-In construction zones.
-In city driving .
Traffic jam assist availability:
When you are in the Driver assistance view in the
in str ument cluster disp lay, the indicator light
turns
on ¥ and the message Traffic jam assist
available
appears if a traffic jam situation was
detected. You can open the
Driver assistance dis -
Assistance systems
play using the mu ltifunction steering wheel but­
tons
c;, page 13 . To activate traffic jam assist, you
must press the
<=> fig. 119 button and switch on
the adaptive cruise control
c;, page 110.
Indicator lights
Ill and II-traff ic jam assist is switched on.
Vehicles driving ahead were detected. Your vehi ­
cle adapts whi le driving
c;, fig. 120.
•-Traffic jam ass ist switches off if the driver
does not take over steer ing after multiple driver
intervention requests . The system brakes the ve ­
hicle until it is stationary.
A WARNING
-A lways keep your hands on the steering wheel
so you can be ready to steer at any t ime . The
driver is always responsible for staying in a lane and for assessing traffic s ituations . Read
and follow the warnings
on<=>.& in General
information on page
109 . Never use traffic
jam ass ist in the following situations or you
will increase the risk of an accid ent.
-Driving offroad or on unpaved roads. Traffic
jam assist is only designed for use on paved
roads.
-I n city driv ing o r in construction zones.
-On curv ing stretches of road.
-In narrow lanes.
- In unclear traffic situat ions such as at inter-
sections or toll stat ions.
@ Tips
You are not necessarily guided to the center
of your lane.
117

Assistance systems
Distance indicator and
distance warning
Description
Applies to: vehicles with Aud i adapt ive cruise control
F ig. 12 1 In stru ment cl uste r: dis tance indica tor/wa rning
At speeds above 40 mph (65 km/h), this funct ion
measures the time betwee n the vehicle driv ing
ahead and s hows th is in the instrument cl uster
d isp lay¢ fig. 121 .
You can set a warning t hreshold between 0 .6 and
3.0 seconds . The. indicator light t urns on if
you fall be low the set d is tance.
Switching the distance indicator/warning on
and off
.. In the Infotainment system, selec t: I MENU !
button > Vehicle > left contro l button > Driver
assistance > Distance warning.
A WARNING
-Read an d follow th e warn ings on ¢.&. in
Gen eral inf orma tion on page 1 09.
-The driv er is always r espons ib le for a dhering
to the regulations applicable in that co un­
t ry .
{!) Tips
You may fall below he warn ing t hreshold
briefly whe n pass ing or when quickly ap­
proac hing a s low veh icle . T h er e is no wa rning
in this scen ario . A warn ing is gi ve n only if you
f al l b elow the war ning thr eshold f or an ex ­
t en ded pe rio d o f tim e.
118
Messages
Appl ies to: vehicles with Audi adaptive cruise control
ii ACC with traffic jam assist: unavailable . See
owner's manual
The sy stem cannot gu aran tee t hat i t will dete ct
vehicle s cor re ctl y an d it h as sw itched
off . The ra ­
dar sensors have shifted or are fau lty . D rive to an
aut ho rize d Audi dea ler o r a uth orized Audi Service
Facility immed iate ly to have the malfunct ion cor ­
r ected .
ii ACC with traffic jam assist: currently un­
available. See owner's manual
This mes sage ap pears if the ada ptive cruise con ­
t ro l canno t be activ ated, for example i f th e hood
is ope n.
ti ACC with traffic jam assist : currently un­
available. Sensor vision restricted due to sur­ roundings. See owner 's manual
This message ap pears if the radar se nsor v iew is
obstr ucted, for e xamp le by leaves, snow, heavy
s p ra y or dirt . Cle an the
se nso rs ¢ pa ge 1 09,
fi g. 108 .
ill ACC with traffic jam assist: currently un­
available. Grade too steep
T he road exceeds the maxim um poss ible g rade
for saf e operation . The systems cannot be sw itch ­
ed o n.
ill ACC with traffic jam assist: only available in
D, Sor M
Se lect t he D/S or M se lector lever position.
flJ ACC: available from 1st gear up
Manua l transmiss io n: ada ptive cr uise con trol
works in 1s t gear an d higher.
ti ACC: clutch pedal pressed
Manua l transmiss io n: pressing the clutc h pedal
l onger inte rrupts the cont rol.
IIJ ACC: note engine speed
Manu al transmissio n: this message appea rs if t he
d rive r ha s not shift ed up or down in t ime when
t he a dap tive cr uise co ntrol is b raking o r accele r-
at ing , ca usi ng the ve hicle to excee d or to not
.,.

Assistance systems
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.
Door open
The system is not ava ilable when the door is
open.
Audi pre sense
Introduction
A pp lies to: ve hicles w ith Audi p re se nse
W ithin the limits of the system, the pre sense
functions can initiate measures in particularly
dangerous situations to protect the veh icle pas­
sengers and other road users .
- Due to the interlinking of various vehicle sys­
tems, crit ical dr iving s ituations can be detected
by
pre sense basic and measures for preventa ­
tive occupant protection are can be initiated .
- The
pre sense front system uses the data from
the adapt ive cruise control* radar sensors and
the camera to calculate the probab ility of a col­
li sion. Withi n the limits of the system, an im­
pending collision with vehicles can be dete cted
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 full
deceleration to reduce the co llision speed or to
avo id the collision under certain c ircumstances .
In conjunct ion with pre sense basic/rear, the
front safety belts are also revers ibly tensioned
when needed . The pre sense front is also active
whe n adapt ive cruise control* is swit ched off.
- Pre sense rear contains pre sense basic func­
tions. It uses the data from the side assist* ra­
dar sensors and calculates within the limits of
the system the probab ility of a rear end coll i­
s ion with the vehicle behind you. Pre sense rear
is also active when side assist* is switched off.
- Within the limits of the system,
pre sense city
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, acoustically and with a jerk on the brakes if
necessary. If needed, it can initiate a full decel­
eration to reduce the collision speed or to avoid
120
the collision under certa in circumstances . In
conjunction with pre sense basic/rear, the front
safety belts are also reversibly tensioned when
needed .
A WARNING
-
Read the general information inc> & in Gen-
eral information on page 109,
c> & in Gener­
al information on page 130.
(D Tips
- Certain pre sense funct ions sw itch off when
dr iving in reverse.
- The pre sense functions may not be availa­
ble if there is a malfunct ion in the ESC sys­
tem or the a irbag control module.
- Note that the reversible belt tensioner on
the front passenger's side deactivates when
the front passenger's airbag is deactivated .
- Switch the pre sense off when you are not
using public streets or when loading the ve­
hicle onto a vehicle carrier, tra in, sh ip or
other type of transportation. This can pre­
vent an undesired intervention from
the pre
sense system.
Audi pre sense basic
Description
App lies to : vehicles wi th Audi pre sense basic
The pre sense bas ic functions are activated at a
speed of approx imately 20 mph (30 km/h) or
higher .
The following functions can be triggered under certain condit ions w ith in the lim its of the sys­
tem:
- Tensioning of the safety belts (for examp le,
during heavy brak ing): the front safety belts
have reversib le be lt tens ioners. If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger again.
- Closing the windows and sunroof* .
-

-Activating the emergency flashers l).
The message Audi pre sense . ¢ page 121,
fig. 122 will warn you abo ut the danger.
Aud i drive select*: the trigger t imes are adjusted
depending on the mode selected.
Audi pre sense front
Description
Applies to: veh icles with Audi adaptive cruise control
Within the limits of the system, pre sense front
can warn you of impending collisions and initiate
the corresponding braking maneuvers or the sup­ porting measures when avoiding a collision .
If detected in time, the system can rank the dan­
gerous situation as critical if a vehicle driving
ahead brakes suddenly, if your own vehicle is ap­
proaching a significantly slower vehicle at high
speed or when there is an oncoming vehicle dur­
in g a turning maneuver .
If detection is not possible, then pre sense front
does not react .
Warnings
Applies to: ve hicles with Audi adaptive cruise control
Fig. 122 In strument cluste r: approac h warning
General information
The system recognizes various dangerous situa­
tions . The
early warning occurs if:
-a vehicle driving ahead brakes suddenly,
-your own vehicle approaches a significantly
a s lower vehicle or stationary vehicle in the direc-co
;::; tion of travel. ,....
N .... 0 0
3 1) This is not availa ble in some co untrie s. co
Assistance systems
When this warning occurs, it may only be possi­
ble to avoid a collision by swerving or braking
strongly. The message
Audi pre sense.
¢ fig. 122 and a warning tone will warn you
about the danger .
If you do not react enough or not at all to a dan­
gerous situation that was detected by the sys­
tem, pre sense front provides assistance by ap­ plying the brakes .
If a collision is imminent, the system will first
provide an
acute warning by braking sharply. You
will also warned by an indicator in the instrument
cluster
display¢ fig. 122. If you do not react to
the acute warning, pre sense front can brake with i ncreasing fo rce within the limits of the
system
1>. This reduces the vehicle speed in the
event of a collision. At low vehicle speeds, pre
sense front can in itiate a complete deceleration
shortly before a collision with a vehicle driving
ahead
l). If pre sense front determines that you
are not braking strongly enough when a collision
is imminent, it can increase the braking force.
T he following functions trigger in conjunction
with pre sense basic/rear at corresponding vehi ­
cle speeds:
-Reversible tensioning of the front safety belts.
-Closing the windows and sunroof* .
-Inflating the side bolsters* on the seat back-
rest .
Audi drive select*: depending on the mode se­ lected, the reversible belt tensioner, the closing
of the w indows and sunroof*, and the inflating of
the side bolsters* on the seat backrest may not be active.
Evasive steering support
Evasive steering support helps you to steer the
vehicle around an obstacle in a critical situation .
If you avo id an obstacle after the acute warning,
then the evasive steer ing support ass ists you by
applying slight stee ring adjustment to correct
.,.
121

Assistance systems
Description
Applies to: vehicl es w ith Aud i drive select
The follow ing systems, among other things, are
influenced by drive select:
Engine and automatic transmission*
Depending on the mode, the engine and auto­
mat ic transmission* respond more quickly or in a
mo re balanced manner to accelerator pedal
movements . In the sporty
Dynamic mode , the
transmission shifts at highe r speed ranges.
Suspension control*
The suspension control* uses sensors to record
information regard ing steering movements ,
braking and acceleration operations by the driv­
er , road surface, driving speed, and load. This
makes it possible to adapt damping to the driv­
ing situation nearly in rea l time. With drive se ­
lect, you can adjust the suspension control to
sporty
( Dynamic ), comfortab le ( Comfort ) or bal­
anced
( Auto ).
Steering
The power steering adapts. Indi rect s teer ing that
moves easily as in
Comfort mode is especia lly
suited to long drives on highways . The
Dynamic
mode provides sporty , direct steering.
The following applies to vehicles with dynamic
steering* : the steering ratio changes based on
vehicle speed in order to maintain optimum
steer ing effort for the driver at all times . This
sets the steering to be less sensitive at higher
speeds in order to prov ide improved vehicle con­
trol. At reduced speeds, steering is more direct in
order to keep the steering effort as min imal as
possible when the driver is maneuvering the vehi­
cle. At low and average speeds, dynamic steer­
ing* additionally provides more responsive steer­
ing performance.
Sport differential*
As a component of the all wheel drive system
(quattro)
~ page 1 SO, the sport differential dis­
tributes the driving power to the rear axle de­
pending on the situation. The distribution of
power varies depending on the selected mode
134
from moderate (Comfort ) to sporty (Dynamic ).
The goal is a high level of agility and ability to ac­
ce lerate on curves . The vehicle is very respons ive
to steering.
Adaptive cruise control (ACC)*
The behavior when accelerating can be adjusted
from comfortable to sporty, depending on the
drive select mode. Adaptive cruise control also
responds to the driving behavior of the vehicle
ahead in a more conservative or sporty manner.
Engine sound*
The engine sound adapts to the current mode
and can be subtle to sporty.
@ Tips
The S selector lever position automatically en­
gages when the
Dynamic mode is selected .
Selecting the driving mode
Applies to: vehicles with Audi drive se lect
Fig. 135 Center co nsole: controls for drive se lect
.,. Press the left or right a rrow key ~ fig. 135 until
the desired mode appears in the instrument
cluster/ Infotainment system disp lay. Or
.,. Select in the Infotainment system: IMENU j but-
ton
> Vehicle > Audi drive select.
.,. Select and confirm the desired setting.
You can change the driving mode when the vehi­
cle is stationary or while driving. If traffic per­
mits, after changing modes, briefly take your
foot off the accelerator pedal so that the recently
selected mode is also activated for the engine.
.,.

a co .... N ,....
N .... 0 0
3 co
Fuse panel @ (brown)
No . Equipment
2
Mass airflow sensor, camshaft adjust-
ment, charge air cooler pump
3 Exhaust doors, fuel injectors, radiator inlet
4 Vacuum pump, hot water pump, particu-
late sensor, biodiesel sensor
5 Brake light sensor
6 Engine va lves, camshaft adjustment
7
Heated oxygen sensor, mass airflow sen-
sor
8
Water pump, high pressure pump, high
pressure regulator va lve
9 Hot water pump
10
Oil pressure sensor, oil temperature sen-
sor
11 Clutch pedal position sensor
12 Engine valves
13 Radiator fan
14 Fuel injectors
15 Ignition coils
16 Fuel pump
Fuse panel @ (red)
No . Equipment
1 Anti-theft alarm system
2 Eng ine control module
3 Lumbar support
Automatic transmission selector mecha -
4
nism
5 Horn
6 Electromechanical park ing brake
7 Gateway control module
8 Interior headliner lights
10 Airbag control module
11 Electronic Stabilization Control (ESC)
12 Diagnostic connector, light/rain sensor
13 Climate control system
14 Right front door control module
15 A/C compressor
Fuses and bulbs
Fuse panel © (black)
No . Equipment
1 Front seat heating
2 Windshield wipers
3 Left head light electronics
4
Panorama glass roof I sliding/t ilting sun-
roof
5 L eft front door control module
6 Sockets
7 Right rear door control module
8 All wheel drive
9 Right headlight electronics
10
Windshield washer system/headlight
washer system
11 Left rear door control module
Fuse panel @ (black)
No. Equipment
Seat ventilation, rearv iew mirror, climate
1 control system, rear climate control sys-
tern controls, windshield defogger
2 Gateway, climate control system
3 Sound actuator/exhaust sound tuning
4 Clutch pedal posit ion sensor
5 Engine start
7 Rear USB charg ing port
8 Homelink
9 Adaptive cruise contro l
11 Video camera
12 Matrix LED headlight/right LED headlight
13 Matrix LED headlight/left LED headlight
14 Rear window wipe r
Fuse panel © (red)
No . Equipment
1 Ignition coils
5 En gine mount
6 Automat ic transmission
7 Instrument panel
8 Climate control system (blower)
10 Dynamic steering
11 Engine start
371

a co .... N ,....
N .... 0 0
3 co
A
A/C MAX (button) ................ .... .. 78
A/C (button) ... .. . ..... ..... ... ... .. . 77
ABS .. .. ... . .. .. ............. .. .. .. . 146
Accessories 68 ,385
Active lane assist
Cleaning the camera area . . . . . . . . . . . . .
355
also refer to Audi active lane assist . . . . . 125
Adaptive cruise control . . . . . . . . . . . . . . . . . 108
Cleaning sensors . . . . . . . . . . . . . . . . . . . . 355
Distance indicator and distance warning . 118
Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Predictive control . . . . . . . . . . . . . . . . . . . . 115
Traffic jam assist . . . . . . . . . . . . . . . . . . . . 116
AdBlue .. .. .. .. ............... .. ..... 319
Messages
Additional accessories
Adjusting air distribution (automatic climate
control)
. .. .. .. ............... .. .. .. ..
Adjusting the sound ............ .. .. .. .
319
385
78
252
Adjusting the temperature (automatic climate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
78
Advanced key
refer to Convenience key . . . . . . . . . . . . . . . 83
Airbag .. .. .. .. ............... .. ..... 271
Airbag system . ................. .. 271,291
Advanced Airbag System components . . . 278
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286
Children . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Child restraints . . . . . . . . . . . . . . . . . . . . . 297
Components (front airbags) .. ..... ... .
Danger of fitting a child safety seat on the
front passenger seat ................ .
D. l 1sposa ... .. ............... .. .. .. .
Front airbags . .. ........... .. .. .... .
H ow do the front airbags work? ....... .
How many airbags does my vehicle have?
How the Advanced Airbag System compo-
nents work together ........ .. .. .... .
Important safety instructions on the knee
airbag system .... .. ..... ..... .. .... .
Indicator light ............ ...... ... .
Knee airbags .. ............ ...... ... .
Monitoring . .. ............. .. .. .... .
PASSENGER AIR BAG light ....... .. .. .
Repairs .. .. .. .. ........... .. .. .... .
278
272
286
276
281
278
280
289 283
287
283
283
286
Index
Safety instructions . . . . . . . . . . . . . . . . . . . 285
When must the system be inspected? 283
Air pressure
Tires ..... .. .. .. .. ............. .. ..
344
Alignment pin (changing the wheel) . . . . . . 360
All season tires . . . . . . . . . . . . . . . . . . . . . . . 349
All weather lights . . . . . . . . . . . . . . . . . . . . . . 54
All wheel drive
Indicator light . . . . . . . . . . . . . . . . . . . . . . .
35
also refer to quattro . . . . . . . . . . . . . . . . . 150
AMI
refer to Audi music interface . . . . . . . 233, 234
Android Auto
refer to Audi smartphone interface . .. ..
Anti -freeze
Windshield washer system ........... .
Anti- lock braking system
refer to ABS ..... .. ................ .
Anti-Slip Regulation
refer to ASR ... .. .................. .
Apple CarP lay
refer to Aud i smartphone interface ... ..
Arrow view
ASR
Audi active lane assist Messages
Audi connect emergency call and service ..
Online roadside assistance .......... . .
Audi connect vehicle contro l ........... .
Parking location .. .................. .
Remote locking and unlocking ..... .. . .
Vehicle status report ............... . .
246
332 146
146
246 23
146
125
127
202
203
198
199
199
199
Audi connect (Infotainment) . . . . . . . . 188, 195
Data protection . . . . . . . . . . . . . . . . . . . . . 196
Services overview ' .. ................ .
Starting ...... .. .. ................ .
Audi drive select
... .. ............. .. ..
Audi Entertainment mobile ...... ... .. . .
Audi music interface
.................. .
Audi music stream
refer to Wi-Fi .... .. ............... . .
Audio files
. . .... .. .. ............... . .
Audio player
B luetooth audio player .............. .
Wi-Fi audio player . ................. .
Audio track
189
189
133
235
233
231
236
230
231
239
387