warning light AUDI A4 2021 Owner´s Manual

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

8W1012721BC
Quick access

@9 Center armrest with storage com-
partment. Depending on vehicle
equipment, it may have:



— Audi music interface .......... 202
—Audi phone box ............... 164
— Starting the engine if there is a
MALFUMERION since oo sxosoue x 2 seems ss 95
@) Electromechanical parking brake
BUGGOT sieves so cman « 2 ewes 2s men 2 106
@) Selector lever (automatic transmis-
SIOM) seo so neon & v Howe & eRe Fa 97
@3 Storage compartment .......... 83
@ [START ENGINE STOP]button .... 95
@3) Audi music interface ............ 202
@@ Steering wheel adjustment ...... 66
@) Lever for:
— Cruise control system ......... 127
— Audi adaptive cruise control .... 130
® Button for switching the head-up
display on and off, adjusting the
height ........ 2... cee eee eee 25
@ Instrument illumination ......... 55
60) Connection port for the On Board
Diagnostic System (OBD) ........ 277
@) Headlight control switch ........ 51
@ Hood release ...............0-. 222
63 All-weather lights button ........ 51
@4 Luggage compartment lid button . 40
@5) Exterior mirror adjustment ...... 55
68 Buttons for:
— Power windows ...........00. 45
—Child safety lock .............. 44
@) Tips
Some the equipment listed here is only instal-
led in certain models or is available as an op-
tion.
Indicator lights overview
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal-
functions. Some warning and indicator lights
turn on when you switch the ignition on and must
turn off when the drive system is switched on or
while driving.
With some indicator lights, messages may ap-
pear and warning signals may sound. The indica-
tor lights and messages may be covered by other
displays. To show them again, select the second
tab for messages with the multifunction steering
wheel > page 13.
Some indicator lights in the display can display in
several colors.
OMe eee any
If the wA or N indicator light turns on, check
the message in the instrument cluster.
The following indicator lights may be available,
depending on the vehicle equipment:

Red indicator lights
Central indicator light
=> page 7,
Instrument cluster
=>page 12
















Cooling system
> page 14,
=> page 227,
=> page 227
Safety belt
=> page 70
Transmission
= page 100
Drive system
= page 102,
Electrical system
=> page 230
Brake system
=>page
105,
=>page 229,
Electromechanical parking brake
=> page 107 >

Quick access

Brake system
=> page 105,
=> page 229,
Electromechanical parking brake
=> page 107
Electromechanical parking brake
=> page 106
Electromechanical parking brake
=> page 106
Steering
>page 111
Steering lock
>page 111
Adaptive cruise control
=> page 131,
Safe start monitor
> page 136,
Driver intervention request
=> page 137
Traffic jam assist
=> page 138
Steering intervention request
=>page 139
Distance warning
=> page 140
Active lane assist
=> page 141
Pre sense
> page 144
Hood
=> page 222
Engine oil pressure
=> page 224
Engine oil level (MIN)
=> page 224
Electrical system
= page 230

Yellow indicator lights
Central indicator light
=> page 7
Engine speed limitation
=>page 14



























Engine speed limitation
> page 14,
Drive system
= page 102
Central locking
=> page 35
Bulb failure indicator
=> page 54
Adaptive light
=> page 54
Headlight range control system
> page 54
Light/rain sensor
=> page 54,
=> page 60
Windshield wipers
=> page 60
Safety systems
=> page 72
Engine start system
=> page 96
Convenience key
=> page 96
Transmission
=> page 100
Brake system
=>page 105
Electromechanical parking brake
=> page 107
Suspension control
> page 111
Steering
=> page 111
Steering lock
>page 111
All wheel drive
> page 112,
Sport differential
> page 112
Electronic Stabilization Control
(ESC)
=>page 114

8W1012721BC
Quick access


Electronic Stabilization Control
(ESC)
> page 114






Electronic Stabilization Control
(ESC)
=>page 114
Anti-lock Braking System (ABS)
>page 114
Anti-lock Braking System (ABS)
=>page 114





Adaptive cruise control
> page 138,
Traffic jam assist
=> page 139










Engine oil sensor
=> page 224
Engine warm-up request
=> page 224
Electrical system
=> page 230
Washer fluid level
=> page 233
Tire pressure
=> page 253,
=> page 253
Tire pressure
=> page 253

Steering intervention request
> page 139,
=>page 142






Distance warning
=> page 140

Active lane assist
> page 141,
=> page 143


Pre sense
=> page 143






Side assist, exit warning
=> page 148


Parking systems
=>page 152


Rear cross-traffic assist
=> page 156



Park assist
=>page 161
Emergency call function
> page 179






Tank system
=> page 218
Malfunction Indicator Lamp (MIL)
> page 218,
=> page 220
Engine oil level (MIN)
=> page 224
Engine oil level (MAX)
=> page 224





Other indicator lights
Low beam headlights
=>page 51















Parking lights
=> page 51
Turn signals
=> page 52,
=>page 53
Turn signals
=> page 52,
=> page 53
Start/Stop system
=> page 103
Hill hold assist
=> page 108
Cruise control system
=> page 127
Cruise control system
=>page 127
Efficiency assist
=> page 129,
=>page 129
Efficiency assist
> page 129
Efficiency assist
=> page 129
Efficiency assist
=> page 129 >

Quick access


Efficiency assist
=>page 129
Efficiency assist
=> page 129
Adaptive cruise control
=> page 131
Adaptive cruise control
=> page 131
Adaptive cruise control
=> page 131
Adaptive cruise control
=> page 131
Adaptive cruise control
=> page 136
Traffic jam assist
> page 138
Traffic jam assist
> page 138
Active lane assist
> page 141
High beam headlights
=> page 52,
=> page 52
High beam assistant
=> page 52
Child safety lock
=> page 44
Child safety lock
=>page 45
Child safety lock
=>page 45
High beam assistant
=> page 52,
=> page 54
Convenience key
=> page 96
Transmission
=> page 100
10
Efficiency assist
=> page 129
Start/Stop system
=> page 103




























Electromechanical parking brake
=> page 107
Electromechanical parking brake
=> page 107
Hold assist
=> page 107
Hill hold assist
=> page 109
Steering
>page 111
Speed warning system
=> page 121
Speed warning system
> page 121
Camera-based traffic sign recog-
nition
> page 122
Cruise control system
=> page 127,
=>page 128,
=>page 128
et
Cruise control system
=> page 127,
> page 128,
=>page 128
Efficiency assist
= page 129,
Predictive control
=> page 134,
Adaptive cruise control
> page 138,
Traffic jam assist
= page 139
Adaptive cruise control
= page 134
Adaptive cruise control
=> page 138,
Traffic jam assist
=> page 138,
=>page 139
Distance warning
=> page 140

Instrument cluster
trument clu
Instrument cluster overview
Belo
6/24/2019
6/24/2019
C100 T

Fig. 3 Instrument cluster overview (analog)





Depending on the vehicle equipment, the follow- @) Right additional display with speed-
ing items may appear in the instrument cluster: ometer
Left dial @® Left additional display with:
—Tachometer .........00.. 000s 14 SIG OOM wice es eosenes 2 a were 2 8 wate @ oe 97
Tab
af@a « < sees se oes x eee gee 13 — Audi drive select mode ......... 110
Centralarea .............0.000. 13 Display
Status line (one or two lines) — Engine coolant temperature ~E .. 14
Right dial i
— Convenience display ZX WARNING
— Speedometer Applies to: vehicles with Audi virtual cockpit
Display If there is a severe ECD in the instru-
—FuellevelfD .....-..e0eeec ee. 218 ment cluster, the display may turn off. The
indicator
light may also turn on. Stop the >

12

8W1012721BC
Instrument cluster

@) Note
The needle in the tachometer may only be in
the red area of the gauge for a short period of
time before there is a risk of damaging the
engine. The location where the red zone be-
gins varies depending on the engine.
Odometer


Fig. 7 Instrument cluster: reset button
The trip odometer and odometer are displayed in
the status bar @) > page 12.
The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances. The odometer shows the total
distance that the vehicle has been driven.
Resetting the trip odometer
> To reset the trip odometer to zero, press the re-
set button @.
@) Tips
Distances are displayed in mi (miles) or km
(kilometers).
Outside temperature
display
The outside temperature is displayed in the sta-
tus bar @) 9 page 12.
If your vehicle is stationary or if you are driving at
very low speeds, the temperature displayed in
the instrument cluster may be slightly higher
than the actual temperature outside due to heat
radiating from the engine.
At temperatures below 41 °F (+5 °C), a snowflake
symbol appears in front of the temperature dis-
play > A\.

7 WARNING
Do not assume the roads are free of ice based
on the outside temperature display. Be aware
that there may be ice on roads even when the
outside temperature is around 41 °F (+5 °C)
and that ice can increase the risk of accidents.


Engine oil temperature
indicator
Applies to: vehicles with engine oil temperature indicator
Depending on the vehicle equipment, the engine
oil temperature %7% may be indicated by a bar in
the instrument cluster.
> Applies to: vehicles with Audi virtual cockpit:
Open the vehicle functions tab and switch to
the enhanced view > page 13.
> Applies to: vehicles with analog instrument
cluster: Open the lap timer > page 124.
When engine oil temperatures are low, the dis-
play --- °F (--- °C) appears in the instrument clus-
ter. The engine has reached its operating temper-
ature when the engine oil temperature is be-
tween 176 °F (80 °C) and 248 °F (120 °C) under
normal driving conditions. The engine oil temper-
ature may be higher if there is heavy engine load
and high temperatures outside. This is not a
cause for concern as long as the | or 3 indica-
tor lights do not turn on.
Boost indicator
Applies to: vehicles with boost indicator
Depending on vehicle equipment, the current en-
gine load (meaning the current boost pressure)
may be indicated by a bar in the instrument clus-
ter.
> Applies to: vehicles with Audi virtual cockpit:
Open the vehicle functions tab and switch to
the enhanced view > page 13.
> Applies to: vehicles with analog instrument
cluster: Open the lap timer > page 124.
15

8W1012721BC
Head-up display

Head-up display
Description
Applies to: vehicles with head-up display




Fig. 19 Instrument panel: knob for the head-up display
The head-up display projects certain warnings or
selected information from the assist systems on
the windshield. The display appears within the
driver's field of vision.
Switching on and off
> To switch the head-up display on, press the 67
knob @.
> To switch the head-up display off, press the S7
knob.
Adjusting the height
The height of the display can be adjusted to the
individual driver.
> Make sure you are seated correctly > page 63.
> Turn the knob S? to the right or Left.
Settings in the Infotainment system
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Head-up
display.
Possible settings:
— Display rotation
— Brightness
— Display contents: you can set which informa-
tion should be displayed. The display of certain
information and some of the red indicator
lights cannot be hidden.
® Note
To reduce the risk of scratches on the glass
covering the head-up display, do not place any
objects in the projection opening.
iG) Tips
— Sunglasses with polarization filters and un-
favorable lighting conditions can impair visi-
bility of the display.
— An optimal display depends on the seat po-
sition and the height adjustment of the
head-up display.
—A special windshield is needed for the head-
up display function.
— For information on cleaning, see > table In-
terior cleaning on page 257.
25

Voice recognition system

Voice recognition system
General information
Applies to: vehicles with voice recognition system
You can operate many functions in the vehicle
easily using voice commands.
Using the voice recognition system optimally
> Speak clearly and distinctly at a normal volume.
Speak louder when driving faster.
> Emphasize the words in the commands evenly
and do not leave long pauses.
> Close the doors, the windows, and the sunroof*
to reduce background noise. Make sure that
passengers are not speaking when you are giv-
ing a voice command.
> Do not direct the vents toward the hands-free
microphone, which is in the roof headliner near
the front interior lights.
> Only the driver should speak to the system, be-
cause the handsfree microphone is aimed to-
ward this seating position.


ZA\ WARNING
— Direct your full attention to driving. As the
driver, you have complete responsibility for
safety in traffic. Only use the functions in
such a way that you always maintain com-
plete control over your vehicle in all traffic
situations.
— Do not use the voice recognition system in
emergencies because your voice may change
in stressful situations. The system may take
longer to dial the number or may not be
able to dial it at all. Dial the emergency
number manually.

G) Tips
There are no voice guidance* prompts when a
dialog is active.
26
Description
Operating the voice recognition system
Applies to: vehicles with voice recognition system
iS] (2) ie
>| |
STEN
Daa) re
Neer) a
Connect 5
Pre)
oy c a
ey
Cesc >
coy
Fig. 20 Center display: voice recognition system
Requirement: the ignition and the MMI must be
switched on. A system language supported by
the voice recognition system must be set. There
must be no phone calls in progress and the park-
ing aid must not be active.
Operating by button «¢
> Briefly press the «€ button on the multifunction
steering wheel, or depending on the context,
press we in the center display.
> Say the desired command after the signal tone.
> To switch the voice recognition system off,
press and hold the «€ button on the multifunc-
tion steering wheel, or say or press Cancel (@)
> fig. 20.
Operating with voice commands
> Applies to: MMI: To operate the voice recogni-
tion system using voice commands, select on
the home screen: SETTINGS > General >
(Speech dialog system) > Activate the speech
dialog system with "Hey Audi".
> Say the activation phrase Hey Audi together
with the desired command.
> To switch the voice recognition system off, say
Cancel or press and hold the «£ button on the
multifunction steering wheel, or press @)
> fig. 20.
Commands and assistance
In the voice recognition system menu, possible
commands or help settings are displayed for the
current dialog @).
> To receive additional help for the current dia-
log, say or press Help (2).

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