
8W1012721BC 
Table of contents 
  
  
All wheel drive (quattro).............. 112 
Electronic Stabilization Control......... 113 
Trailer towing.................... 115 
Driving with atrailer................. 115 
Assist systems................... 117 
Assist systems................... 117 
General information. . 117 
Surrounding area detection............ 118 
Driving information.............. L241 
Speed warning systeM.........-.00 00 121 
Camera-based traffic sign recognition... 121 
Traffic light information.............. 123 
Lap tel ws =  = sees 5  5 ses 2  2 eee ge  ee 124 
Integrated Toll Module............... 125 
Driver assistance................. 127 
Cruise control system............20-- 127 
Efficiency assist....... 0.00... 128 
Audi adaptive cruise control........... 130 
Traffiejaim assists: « ¢ sas s o aerey &  2 sores x 138 
Distance warning ...... 2.00... .00000. 140 
Audi active lane assist/lane departure 
WARNING: = = wey =  o eee 2 o wees 2 Rae &  2 BS 141 
Audi pre sense... ...... cee eee eee 143 
Side assist... 0.0.6... cece eee eee 147 
EXit Warnitig ces s  = ewes 5  & eee § o eee es 148 
Parking and maneuvering....... 150 
TNtROGUetiON «  = sew ce sees 5 2 eee : x ewer 150 
Parkirigiaid plus o seswies «5 acinwse ow enanave a  & ox 150 
Rearview camera and peripheral cameras. 152 
Rear cross-traffic assist.............0. 156 
Assisted 
parking............ 0 eee eee 157 
Park assist... 0.0... ccc eee ee 159 
Infotainment system............ 162 
Telephone..................-0-005 162 
Introduction................ 0000-0 162 
S@tUP -cusy 9 sous &  ¥ Sew Yo eR Es ewe 162 
Using the Audi phone box............. 164 
Using the telephone.................. 166 
SOtUiNGS sisis <  & eawig + eels # eee s BwR  169 
MOSSAQESicies «i sanswis 6  v sete +  0 oxime 4  9 aie 170 
Troubleshooting............--.000005 172 
PRCT COMMBCE 's. cosves 5  6 sivas 6 6 snes 8 oo LS 
General information................- 173 
Audi connect Infotainment............ 173 
Using a Wi-Fi hotspot................ 174 
Audi connect Infotainment services..... 174 
Functions on demand................ 175 
Audi connect vehicle control services.... 175 
Settings............. 0.0.00 002 eee 176 
TRGUBIESHOOLING sass ¢ scm s 3 Hae  5 tee 177 
Emergency call................... 178 
Overview... 12.0... eee  eee eee 178 
Emergenicy'call « css s sees 6  s gems ©  + eeu 178 
Online roadside assistance............ 179 
NaViGGationtc: « « meus «  & seu sc poms + «oe 181 
Opening navigation............0..005 181 
myAudi navigation...............000. 181 
Entering a destination................ 182 
Stopping route guidance.............. 185 
Map... .. see cece eee eee 185 
Alternative routes.............2-.00. 187 
Additional functions................. 187 
Satellite map.......... 2.0... ee eee 188 
Mapupdaté-: « 2cas ss ees 9  ¢ eews vs pee 189 
Traffic incidents’. = vce se eeu ve exon ewe 190 
SETEIIGS sseneie oo smeneie © oxemenene © sitadame @  © etnznis 191 
RAGUIG:: « cas 2  = seus «  s pomp o  6 com 2 ¢ ce 193 
General information................. 193 
Radio functions................00005 194 
Online radio's: ss sees ss eees ye epee se ee 197 
Options and settings.............0005 198 
Troubleshooting..............--000-5 199 
PRE wei. as aoscen oo sauweme 3  & coset 3  v wens 201 
Generalinformation................. 201 
Bluetooth audio player............... 201 
Amazon Alexa... 0.000 s eee  bee eee ees 202 
Multimedia connections.............. 202 
Playing media. ........ 2. cece eee eee 203 
Options and settings................. 207 
Supported media and file formats...... 207 
Troubleshooting..............--.0005 209 
Audi smartphone interface...... 210 
Setup... 2... eee eee eee 210 
Troubleshooting.............---.00-5 211  

Touch display 
  
Off Of  o8 
Off of af 
O88 OB  of of 
Fig. 16 Center display: frequently used symbols in the sta- 
tus bar 
  
  
[RAZ-1078 
      
The symbols in the status bar show you informa- 
tion at a glance, such as if a mobile device is con- 
nected or if there is a data connection. The most 
common symbols are  listed in the table. 
  
Description 
  
There is a data connection. The bar indi- 
@ | cates the signal strength of the data con- 
nection. Data is being transmitted now. 
  
There is a data connection. The bar indi- 
cates the signal strength of the data con- 
nection. No  data is being transmitted now. 
© 
  
A mobile device is connected. The bar indi- 
cates the signal strength of the cell phone 
connection. 
  
There is no data connection. 
  
An error occurred with the mobile device 
connection to the MMI. 
  
A user is selected. If a question mark ap- 
pears in the symbol my, the guest user is ac- 
tive. 
  
A Bluetooth device is connected. 
  
Bluetooth is switched on, but no Bluetooth 
device is connected. © 
|e; 
© 
|@|®| 
© 
  
Audio  playback was interrupted. 
  
NO) The audio source is muted. 
  
Privacy settings are enabled. The additional 
symbol indicates which privacy settings are 
currently activated > page 278. 
The Integrated Toll Module is switched on. 
The numbers 1 - 3+ indicate how many pas- 
sengers are selected in the MMI. 
© 
  
® 
  
       
22 
  
Notification center 
Cee ay 
debtors 
Tap here to display parking spaces at the destination. 
  
Fig. 17 Center display: notification center 
Notifications can be displayed in the center dis- 
play. After a specified time, they will be hidden 
and a corresponding symbol will appear in the 
status bar © > page 20, fig. 15. In the notifica- 
tion center, you can view these notifications ® 
> fig. 17, apply quick settings @, and operate 
functions @). 
Using the notification center 
> To open the notification center, pull the status 
bar downward, or 
> Press the =] button on the status bar. 
> To turn quick settings on or off, press the re- 
spective symbol @). 
> To apply quick settings, press the respective 
symbol @). 
> To obtain additional information about a notifi- 
cation,  press it. 
> To delete a notification, pull it toward the  right 
edge of the screen. 
> If there are more than four notifications in the 
notification center, the older notifications will 
be hidden. To display the older notifications, 
drag your finger upward on the screen. 
Setting which content is displayed 
You can set whether some notifications should be 
displayed. 
> To set the displayed content, press &@, or 
> Applies to MMI: Select on the home screen: 
SETTINGS > Notifications. 
> Select and confirm which notifications should 
be displayed.  
![AUDI S4 2021  Owners Manual 8W1012721BC 
Global functions 
  
Global functions 
Additional function 
buttons 
  
  
  
[RAz-0846] 
   
  [   
Fig. 22 MMI On/Off knob with joystick function 
Adjusting the volume 
You can adjust t AUDI S4 2021  Owners Manual 8W1012721BC 
Global functions 
  
Global functions 
Additional function 
buttons 
  
  
  
[RAz-0846] 
   
  [   
Fig. 22 MMI On/Off knob with joystick function 
Adjusting the volume 
You can adjust t](/manual-img/6/57557/w960_57557-30.png)
8W1012721BC 
Global functions 
  
Global functions 
Additional function 
buttons 
  
  
  
[RAz-0846] 
   
  [   
Fig. 22 MMI On/Off knob with joystick function 
Adjusting the volume 
You can adjust the volume of an audio source or a 
system message (for example, from the voice 
recognition system) when the sound is playing. 
> To increase or decrease the volume, turn the 
right 
thumbwheel @) © fig. 21 upward or 
downward, or turn the On/Off knob > fig. 22 to 
the right or  left. 
> To mute, push the  right thumbwheel or the 
On/Off knob. 
Selecting the previous/next track or station 
> Press the d
Fast forward/rewind 
> Press and hold the l
the desired playback position is reached. 
Quick access steering wheel button 
Depending on vehicle equipment, the button @) 
may provide quick access to various functions. 
> & button, see  > page 93. 
You can program the >K button with various func- 
tions. 
> To bring up the function that is currently set, 
press the * button. 
> To perform the function that is currently set, 
press and hold the >K button, or: 
> Applies to MMI: Select on the home screen: VE- 
HICLE > Settings & Service > Steering wheel 
button assignment. 
> Select and confirm the desired function. 
Switching voice operation on or off 
«€ button @, see > page 26. 
Using the telephone functions 
button @, see > page 168. 
  
  
Adjust the volume of the audio system so that 
signals from outside the vehicle, such as po- 
lice and fire sirens, can be heard easily at all 
times. 
    
29  

8W1012721BC 
Opening and closing 
  
Tone when locking) 
You can select if an audio signal sounds when 
locking the vehicle. 
Open with convenience key 
Applies to: vehicles with convenience key 
You can deactivate the feature for unlocking us- 
ing the sensor > page 38. 
(etiam cre dire ln] 
  
8  3 
=. 
2 o a 
  
  
Fig. 23 Driver's door: central locking switch 
> To lock or unlock the vehicle, press the f or B 
button > /\. 
When locking the vehicle with the central  locking 
switch, 
the following applies: 
— The doors and the luggage compartment lid 
cannot be opened from the outside for security 
reasons, for example, to reduce the risk of un- 
authorized entry while stopped at a light. 
— The LED in the central  locking switch turns on 
when all doors are closed and  locked. 
— You can open the doors individually from the in- 
side by pulling the door handle one time. To 
open the rear doors individually, you must pull 
the door handle twice. 
— In the event of a crash with airbag deployment, 
the doors unlock automatically to allow access 
to the vehicle. 
  
Z\ WARNING 
— Observe the safety precautions > page 33. 
— The central  locking button works when the 
ignition is switched off. 
      
  
)_ This function is not available in all countries. 
  
— The central locking switch is inoperative 
when the vehicle is locked from the outside. 
|-3} Driver's door: malfunction! Shift to P before 
leaving vehicle. See owner's manual 
       
There is a malfunction in the driver's door. Secure 
the vehicle before exiting by selecting the “P” se- 
lector lever position. Drive immediately to an au- 
thorized Audi dealer or authorized Audi Service 
Facility to have the malfunction repaired. 
3} Central locking: malfunction! See owner's 
manual 
There is a central  locking malfunction. If the 
doors cannot lock, you can emergency lock the 
doors > page 36. Drive to an authorized Audi 
dealer or authorized Audi Service Facility immedi- 
ately to have the malfunction corrected. 
35  

Opening and closing 
  
Mechanically unlocking and locking the 
doors 
If the central locking fails, you must unlock or 
lock the doors separately. 
  
  
Fig. 24 Driver's door: door lock cylinder 
[Raz-149| 
  
  
Fig. 25 Door: mechanically locking 
Unlocking or locking the driver's door with 
the mechanical key 
> Remove the mechanical key > page 37. 
> To unlock the driver's door, turn the mechanical 
key to the unlock position in the direction of ar- 
row @) > fig. 24. 
> Pull the door handle to open the driver's door. 
> To lock the driver's door, select the "P" position 
and turn the mechanical key once to the close 
position @=> /\. 
36 
Locking the front passenger's door and rear 
doors using the mechanical key 
The mechanical lock is located on the edge of the 
doors (@) or in the latch opening @) > fig. 25. It is 
only visible when the door is open. 
>» Remove the mechanical key > page 37. 
> If necessary, remove the cap from the opening 
> fig. 25. 
> Insert the mechanical key into the slot  on the 
inside and turn it all the way to the right (right 
door) or Left (left door). 
> If necessary, install the cap in the opening and 
close the door. 
Once the front passenger’s door or rear doors 
close, it will no longer be possible to open them 
from the outside. The front doors can be opened 
from the inside by pulling the door handle one 
time. The rear doors can be unlocked from the in- 
side by pulling the door handle one time and 
then opened by pulling the door handle again. If 
the child safety lock in one of the rear doors is ac- 
tivated,  you must first pull the door handle from 
the  inside. Then you can open the door from the 
outside. 
  
Z\ WARNING 
Observe the safety precautions > page 33. 
Peale Ce) 
Applies to: vehicles with anti-theft alarm system 
      
If the anti-theft alarm system detects a vehicle 
break-in, audio and visual warning signals are 
triggered. The anti-theft alarm system is switch- 
ed on or off when locking or unlocking your vehi- 
cle. If the alarm is triggered, it will shut off auto- 
matically after a certain amount of time. 
Switching the alarm off manually 
> To switch the alarm off, press the G button on 
the vehicle key or switch the ignition on. 
Depending on the vehicle equipment, the anti- 
theft alarm system may have the following fea- 
tures:  

Opening and closing 
  
button in the luggage compartment lid. The ve- 
hicle key must not be more than approximately 
4 feet (1.5 m) away from the luggage compart- 
ment and it must not be inside the vehicle. If 
you press the f* button, then the vehicle will 
lock. 
Storing the luggage compartment lid 
opening position 
Applies 
to: allroad 
The position must be at a certain height or higher 
to store. 
> Bring the luggage compartment lid into the de- 
sired open position. If you want to move the 
luggage compartment lid to a lower position, 
move it slowly in small increments; otherwise, 
the luggage compartment lid will close auto- 
matically. 
> Press and hold the <3 button in the luggage 
compartment lid for at least four seconds to 
store the new opening position. A visual and 
audio signal will follow. 
> To set a higher open position,  wait at least five 
seconds and then carefully press the luggage 
compartment lid upward. 
> Press and hold the <3 button again for at least 
four seconds to store the desired opening posi- 
tion. 
The automatic opening or closing will stop if: 
— You press the < button or press the handle in 
the luggage compartment lid again Or 
— If something blocks the luggage compartment 
lid or makes it difficult for the lid to move. 
If you press the 
the luggage compartment lid again, the luggage 
compartment lid will open again. 
  
ZX WARNING 
Observe the safety precautions > page 40. 
       
@ Tips 
The luggage compartment lid can be operat- 
ed manually if the vehicle battery is low. It is 
  
)) The closing function applies to vehicles that also have au- 
tomatic luggage compartment lid operation. 
42 
necessary to use more force when doing this. 
Move the lid slowly to reduce the amount of 
force needed. 
Opening and closing the luggage 
compartment lid with foot motion (kicking 
movement) 
Applies to: vehicles with sensor-controlled luggage compart- 
ment lid 
    
  rr} a Ss 
9 
< 
go a 
  
  
Fig. 32 Vehicle rear: foot motion (example) 
The luggage compartment lid can be opened and 
closed automatically 1) > A\ in General informa- 
tion on page 40. 
Requirements: you must be carrying your conven- 
ience key* with you. The ignition must be switch- 
ed off. You must be standing at the center behind 
the luggage compartment lid. 
> Move your foot back and forth under the bump- 
er one time > fig. 32. Do not touch the bumper. 
Make sure you have firm footing. The luggage 
compartment lid will open or close ) once the 
system detects the movement. The automatic 
opening or closing will be canceled if you re- 
peat one of the movements described. 
  
ZA WARNING 
Observe the safety precautions > page 40. 
Gi) Tips 
The luggage compartment lid will only open 
or close )) if you perform the movement as 
described. This prevents the luggage com- 
partment lid from opening or closing due to 
similar movements )), such as when you walk 
      
>  

Driving 
  
  
stabilize the vehicle will no longer be availa- 
ble. This could cause the vehicle to swerve, 
which increases the risk that the vehicle will 
slide. Do not continue driving. See an author- 
ized Audi dealer or authorized Audi Service Fa- 
cility for assistance. 
      
Electromechanical 
parking brake 
Operating the parking brake 
The electromechanical parking brake is used to 
secure the vehicle from rolling away unintention- 
ally. 
The ©) switch is located under the selector lever 
in the center console. It turns on when the park- 
ing brake is set. You can release the parking brake 
manually or automatically when you start to 
drive. 
Setting and releasing the parking brake 
> Setting: pull the ©) switch. 
> 1f BM / © appears, the parking brake is hold- 
ing the vehicle. You can remove your foot from 
the brake pedal. 
> Releasing: when the ignition is switched on, 
press and hold the brake pedal and press the ©) 
button. 
If the red indicator light flashes, the braking 
force has not built  up enough or it has decreased. 
You can also secure the vehicle by selecting the 
“P” gear or pressing the brake pedal. Make sure 
the indicator light is off before you start driving. 
Automatically releasing the parking brake 
when starting to drive 
Requirement: the driver's door must be closed 
and the driver’s safety belt must be fastened. 
> Press the accelerator pedal to start to drive. 
  
ZA\ WARNING 
—To reduce the risk of an accident, always 
make sure the vehicle is situated safely 
while  stationary. 
— If the parking brake is set, it can release au- 
tomatically when the accelerator pedal is 
      
106 
pressed. To reduce the risk of an accident, 
do not inadvertently press the accelerator 
pedal and always shift into “P” when the ve- 
hicle is stopped. 
— If the power supply fails, you cannot set the 
parking brake once it is released, or release 
it if  it  is set. Secure the vehicle against roll- 
ing before exiting the vehicle > page 96. See 
an authorized Audi dealer or authorized 
Audi Service Facility for assistance. 
G) Tips 
— On steep inclines, especially when in trailer 
mode, the vehicle may roll backwards unin- 
tentionally when starting to drive. To reduce 
the risk of this happening, pull and hold the 
switch while pressing the accelerator 
pedal. If enough drive power has built  up at 
the wheels and the vehicle does not roll 
backwards, then release the switch to start 
to drive. 
— If you leave the vehicle when “D” or “R” are 
engaged, the parking brake will be set auto- 
matically. 
       
— Noises when the parking brake is set and re- 
leased are normal and are not a cause for 
concern. 
— The parking brake goes through a self-test 
cycle at regular intervals when the vehicle is 
stopped. Any noises associated with this are 
normal. 
Emergency braking function 
Emergency braking should only be used in an 
emergency, if the standard brake  pedal is mal- 
functioning or obstructed. When the emergency 
braking function is activated, the braking effect is 
similar to a heavy braking maneuver. 
> Pull and hold the @) switch while driving. 
» An audio warning signal will sound and emer- 
gency braking will begin. 
> If you press the accelerator pedal, emergency 
braking will be canceled.  

Driver assistance 
  
Requirement: adaptive cruise control must be 
switched on. 
Overriding control 
You can completely override the control, for ex- 
ample when passing or if you would like to accel- 
erate more quickly. 
> To accelerate manually, pull the  lever toward 
you in the direction of the arrow and hold it 
there, or press the accelerator pedal. 
> To resume the usual cruise control, release the 
lever or remove your foot from the accelerator 
pedal. 
When you are in the Driver assistance display, 
the message Overridden will appear. 
Decreasing the distance 
The function decreases the set distance and pro- 
vides assistance, for example when merging 
when a lane is ending. 
> To further reduce the distance to the vehicle 
ahead temporarily, pull the lever toward your- 
self in the direction of the arrow and hold it in 
that position. 
> To resume the system control, release the lever. 
The adaptive cruise control reduces the distance 
and, if necessary, accelerates the vehicle above 
the set speed. When you are in the Driver assis- 
tance display, the message Overridden will ap- 
pear. 
  
ZX WARNING 
— Observe the safety precautions and note the 
limits of the assist systems, sensors, and 
cameras > page 117. 
— Resting your foot on the accelerator pedal 
could override the cruise control. Braking in- 
terventions and corrective actions by the 
system may not occur. 
      
  
)) Depending on the engine 
136 
Driving in stop-and-go traffi 
Applies to: vehicles with  Audi adaptive cruise control 
  
Applies to: vehicles with safe start monitor 
Fig. 113 Instrument cluster: safe start monitor 
Stopping with adaptive cruise control 
The adaptive cruise control system also assists 
you in stop-and-go traffic!). Within the limits of 
the system, your vehicle may brake  and remain at 
a stop if a vehicle driving ahead stops. 
Starting to drive with adaptive cruise control 
As long as the message a ready to drive and A 
is displayed, your vehicle will begin driving when 
the vehicle ahead starts to move > /\. 
If you are stopped for several seconds, your vehi- 
cle will no longer drive autonomously for safety 
reasons, and the message will turn off. 
> To extend B ready to drive mode for several 
seconds or reactivate, pull the  lever briefly to- 
wards you in the direction of the arrow 
=> page 135, fig. 112. 
> To resume manual control of the vehicle, tap 
the accelerator pedal. 
Safe start monitor 
Applies to: vehicles with safe start monitor 
The vehicle can still start to drive even if certain 
obstacles are detected when starting to drive 
=> /\. If the surrounding area detection detects 
an obstacle, you will be alerted to the danger by 
the A indicator light. 
If you are in the Driver assistance display, the 
display @ © fig. 113 and the message Warning! 
will also appear. An audio signal will also sound. 
Your vehicle will drive more slowly when starting. >