2021 AUDI A4 lights

Table of contents

About this Owner's Manual......
SUMIMAry: < = exe : eens: Seen cs sens
QutckeaeCe ssh: «i esis se ois a eaves @
Cockpit. ...... 0... eee eee eee eee
Indicator lights overview...........4..
Display and operation...........
Instrument cluster...............
Instrument cluster overview...........
Operating. ecccuse w+ were oo wens oo ayes 9 ¥
Adjusting the display.................
Coolant temperature display...........
Tachometer’ series i ewe so snes ¥ & ome
Odometer.............. cee eee eee ee
Outside temperature display...........
Engine oil temperature indicator.......
Boost indicator...............0--000.
Vehicle functions...............-----
Touch display.....................
General touch display operation........
Multi Media Interface................
Head-up display..................
DeSeriptions: s wees « x wows ¢ cess so eee
Voice recognition system........
Generalinformation.................
DeSeriptions. «+ seams x x arucsms x 0 seine oo coer
External voice operation..............
Global FUNGtHIONS:. icc: 5 6 ese. 6 6 sce
Additional function buttons...........
Starting and driving.............
Personalization..................
Opening and closing.............
Central locking..............00-e eee
Child safety lock.............00.-000
Power WindOWSic« s < sews ys wey 5 2 em 5
Sliding/tilting:SUNTOOF escinie os wise a 6 soe
Panoramic glass roof.................
NOD
OO
12 12 12
13
13
14 14
15
15
15
15
16 17 17 19
Z5
25
26 26 26 27
29;
29
30 30 30
33
33)
37
40
44
45
46 47
Valetiparking = s ss-e «x cscs ov cree a ¥ os 48
Garage door opener..........--.00 eee 48
Lights and Vision................. 51
Exterior lighting...................4. 51
Interior liQhting ss =e aves ss eews so eos 54
ViSIOMsn « 3 ses 3 3 ema oo wena vo ae © ove 55
Windshield wipers.............-..45- 58
Digital compass.............-.-0000- 61
Sitting correctly and safely...... 63
Correct passenger seating position...... 63
Frontseats:: » ssw. « ¢ sews & » saws +s ewe < 63
Steering wheel seis < «cies ¥ eerie ss eee 66
Head restraints.................0000. 67
Safety Beltsi: s sass x eeups ¢ < saves 2 e cee 68
Memory function . « scons ecw ee cro ee 71
Airbag system... ... 2.62... 0 ee eee eee 7X
Child safety seats.................04- 76
Storage and convenience........ 82
POWErSOURCES coisa gs seen ss wae se aes 82
Gup holders. ¢ ssn ss wee 2 2 see 2 & pee 82
Storage and compartments............ 83
Luggage compartment............... 83
ROOF hacks « = weies x = wae 2 s eae 2 & ween 2 88
Warm and cold................... 90
Climate control system............... 90
3-zone deluxe automatic climate control. 91
Steering wheel heating............... 93
Fluids in the A/C system. .........0065 93
Driving .............. 0.0... eee eee 95
Starting the vehicle...............0.0. 95
When driving isis ss iovsvie se aerswce oo anes oe 96
Drive system... 2.2... ee eee eee eee 101
Start/Stop system .........ee cece eee 102
BrakeS's so isemi 2 wane w aman a 2 oer as ie 104
Electromechanical parking brake....... 106
Special driving situations.............. 107
Driving: dynamic. . « sic. 6 6 see a 6 se 110
Audi drive select..................00. 110
SUSPENSION es « + exes ¢ ¢ eres +o ees vv eae 111
SUECOMIING 6 vessse oo csisweue io & stone 6 a toma ww Bs Lid

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

Adjusting the layout
Applies to: Audi virtual cockpit
Depending on the vehicle equipment, various lay-
outs may be available.
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit.
> To adjust the desired layout, press @).
Adjusting the additional display
Applies to: Audi virtual cockpit
Depending on the vehicle equipment, the addi-
tional displays that can be selected may vary.
> Applies to: MMI: Select on the home screen:
SETTINGS > Display & brightness > Audi virtu-
al cockpit > Configure.
> Select the desired additional display.
Reducing the display
Depending on the vehicle equipment, you can
hide the central area in the instrument cluster.
> Select on the instrument cluster: vehicle func-
tions tab > [=] button > Reduced display, or
> Press the VIEW button on the multifunction
steering wheel.
Coolant temperature
display
Applies to: vehicles with a coolant temperature indicator
The coolant temperature display @) > page 12
only functions when the ignition is switched on.
To reduce the risk of engine damage, please ob-
serve the following notes about the temperature
ranges.
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem-
perature yet. Avoid high engine speeds, full accel-
eration, and heavy engine loads.
Normal range
The engine has reached its operating tempera-
ture once the LEDs up to the center of the gauge
turn on. If the | indicator light in the instru-
14
ment cluster display turns on, the coolant tem-
perature is too high > page 227.
() Note
— Auxiliary headlights and other accessories in
front of the air intake impair the cooling ef-
fect of the coolant. This increases the risk of
the engine overheating during high outside
temperatures and heavy engine load.
— The front spoiler also helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over-
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa-
cility for assistance.
Tachometer
The tachometer @) > page 12 displays the engine
speed in revolutions per minute (RPM). The be-
ginning of the red zone in the tachometer indi-
cates the maximum permissible engine speed for
all gears once the engine has been broken in. Be-
fore reaching the red zone, you should shift into
the next higher gear, select the "D" or "S" selec-
tor lever position, or remove your foot from the
accelerator pedal.
Engine speed limitation
If the tA indicator light turns on, the engine will
be automatically limited to the RPM displayed in
the instrument cluster. This will protect the en-
gine components, for example during a cold start
or from overheating.
The engine speed limitation is deactivated if you
release the accelerator pedal while the engine is
at normal operating temperature.
If the engine speed limitation was activated by
an engine control malfunction, the By indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam-
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately to have the malfunction corrected. >

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.
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