2021 AUDI A4 ECU

Instrument cluster

Vehicle functions
The trip computer is displayed in the first tab of
the driver information system. Additional vehicle
functions can be accessed depending on the vehi-
cle equipment.
> Press the LE] button on the multifunction steer-
ing wheel.
— On-board computer > page 16
— Lap times > page 124
— Lap statistics > page 124
— Reduced display > page 14
On-board computer
Resetting values to zero
Requirement: the Consumption, Short-term
memory, or Long-term memory display must be
selected.
> To reset the values in the respective memory to
zero, press and hold the left thumbwheel on
the multifunction steering wheel for one sec-
ond.
Depending on the vehicle equipment, you can call
up the following displays in the on-board com-
puter one at a time by turning the left thumb-
wheel on the multifunction steering wheel:
—Time and date > page 212
— Level
— Digital speedometer
— Average consumption > page 16
— Range
— Short-term memory overview
— Long-term memory overview
— Energy consumers > page 16
— Driver assistance
— Traffic sign recognition and traffic light infor-
mation
Short-term memory and long-term memory
The short-term memory collects driving informa-
tion from the time the ignition is switched on un-
til it is switched off. If you continue driving within
two hours after switching the ignition off, the
16
new values will be included when calculating the
current trip information.
Unlike the short-term memory, the long-term
memory is not erased automatically. You can se-
lect the time period for evaluating trip informa-
tion yourself.
Average consumption
The current consumption can be shown using a
bar graph. The average consumption stored in
the short-term memory is also displayed. If the
bar is green, your vehicle is saving fuel (for exam-
ple, using recuperation).
Energy consumers
The Energy consumers view lists other equip-
ment that is currently affecting fuel consump-
tion. The display shows up to three equipment
items. The equipment using the most power is
listed first. If more than three items using power
are switched on, the equipment that is currently
using the most power is displayed. A gauge also
shows the current total consumption of all other
equipment.
Gi) Tips
The date, time of day, and time and date for-
mat can be set > page 212.

Personalization

@ Tips
— Depending on the country, you may be able
to use the myAudi app or my.audi.com.
— You do not need to log into the vehicle with
a myAudi user in order to use Audi connect
vehicle control services, which depend on
the vehicle equipment.
— If you sell your vehicle, reset all settings to
the factory default settings.
— Store the vehicle code in a secure place. It
may be necessary to re-enter the vehicle
code.
— When entering the vehicle code, please note
that the code is case-sensitive.
— If you do not have the 10-digit vehicle code,
contact an authorized Audi dealer or author-
ized Audi Service Facility.
32

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
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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

8W1012721BC
Opening and closing

Break-in security feature
The alarm will sound if there is a break-in at the
doors, hood, and/or luggage compartment lid.
Interior/towing protection monitor
The alarm will be triggered if there are move-
ments detected in the vehicle interior (for exam-
ple, by animals) or if there is a change in the vehi-
cle angle (for example, when the vehicle is being
towed).
You can prevent the alarm from being triggered
by deactivating the interior/towing protection
monitor.
Deactivating the interior/towing protection
monitor
There are the following options for deactivating
the interior/towing protection monitor:
> Press the & button on the vehicle key a second
time within two seconds. Or
> Applies to: vehicles with convenience key:
Touch the sensor on the door handle a second
time within two seconds. Or
> Turn the mechanical key in the door lock to the
close position a second time within two sec-
onds.
> Applies to: vehicles with MMI: Select on the
home screen: VEHICLE > Settings & Service >
Interior monitoring.
If you lock the vehicle, then the interior/towing
protection monitor will stay off until the next
time the vehicle is unlocked.

Z\ WARNING
No one, especially children, should stay in the
vehicle when it is locked from the outside, be-
cause the windows can no longer be opened
from the inside. Locked doors make it more
difficult for emergency workers to enter the
vehicle, which puts lives at risk.

@ Tips
The interior/towing protection monitoring on-
ly functions correctly when the windows and
the roof* are closed.


RAZ-0720,


Fig. 26 Your vehicle key set
@ Vehicle key
You can unlock and lock your vehicle with the ve-
hicle key.
@ Mechanical key and release buttons for
the mechanical key
A mechanical key is integrated in the vehicle key.
To remove it, press the release button and re-
move the mechanical key.
Using the mechanical key, you can:
— Applies to: vehicles with lockable glove com-
partment: locking/unlocking the glove com-
partment.
— Manually unlock and lock the doors > page 36.
— Applies to: sedan with locking backrests: Lock-
ing and unlocking the backrest > page 85.
— Unlock the luggage compartment lid using the
emergency release > page 43.
@ Key fob with vehicle code
Applies to: vehicles with Audi connect vehicle control
Open the key tag and scratch to reveal the vehicle
code. You can unlock the Audi connect vehicle
control services* for your vehicle with this vehicle
code. For additional information, see
=> page 175. If a key fob is lost, contact an au-
thorized Audi dealer or authorized Audi Service
Facility.
37

Opening and closing


ZA\ WARNING
If batteries or coin cell batteries are swal-
lowed or enter the body in any other way, they
can cause serious or fatal injuries within a
short period of time. There is a risk of chemi-
cal burns.
— Keep vehicle keys and key fobs with batter-
ies out of the reach of children.
— Keep new or used batteries away from chil-
dren.
— If the battery compartment on a vehicle key
does not close securely, stop using the key
and keep it away from children.
— Seek medical attention immediately if you
suspect that a battery was swallowed or has
entered the body in any other way.


@ For the sake of the environment
Discharged batteries must be disposed of us-
ing
methods that will not harm the environ-
ment. Do not dispose of them in household
trash.
G) Tips
Replacement batteries for the vehicle key
must meet the same specifications as the
original battery.
Luggage compartment
lid
(ee eles)
Z\ WARNING
— Applies to vehicles with anti-theft alarm sys-
tem: When the vehicle is locked from the
outside, no one - especially children - should
remain in the vehicle, because the windows
can no longer open from the inside
= page 36. Locked doors make it more diffi-
cult for emergency workers to enter the ve-
hicle, which puts lives at risk.
— Always close and lock the luggage compart-
ment lid and the doors when the vehicle is
not in use. Otherwise someone such as a
child could enter the vehicle through the
luggage compartment and become locked


inside it. To reduce the risk of injury, do not
allow children to play in or around the vehi-
cles
—To reduce the risk of injuries by pinching,
make sure that no one is in the operating
area of the luggage compartment lid, in-
cluding the hinge areas and the upper and
lower edge of the luggage compartment lid.
—
After closing the luggage compartment lid,
make sure that it is latched. The luggage
compartment lid could open suddenly while
driving, which would increase the risk of an
accident.
— Never drive with the luggage compartment
lid ajar or open, because poisonous gases
from the surrounding area can enter the ve-
hicle interior and increase the risk of asphyx-
iation.
— If there is a luggage rack (such as a bicycle
rack) on the luggage compartment lid, the
luggage compartment lid may not open
completely under certain circumstances or it
could close by itself if open due to the extra
weight. Therefore, the open luggage com-
partment lid must be given additional sup-
port or the cargo must first be removed
from the luggage rack.
— Applies to vehicles with power-operated or
sensor-controlled luggage compartment lid:
Pay careful attention when closing the lug-
gage compartment lid. Otherwise, you could
cause serious injury to yourself or others de-
spite the pinch protection.



40
@) Note
The luggage compartment lid can bump into
objects such as the garage ceiling when open-
ing and become damaged.
@ Tips
— When the vehicle is locked, the luggage
compartment lid can be unlocked separately
by pressing the “S button twice on the vehi-
cle key. The luggage compartment lid locks
automatically when it is closed again.
— The ability to open the luggage compart-
ment lid using the handle can be deactivat-
ed or activated in the MMI > page 34. >

Opening and closing


ZN WARNING
— Applies to: vehicles with folding backrests:
If you have folded the backrests into the up-
right position, always check if the lock is se-
cured by pulling forward on the backrest.
— Applies to: vehicles with fixed backrest: Af-
ter the emergency release on the luggage
compartment lid is activated, make sure
that the bracket under the rear bench seat
engages securely in the lifting eye.

luggage compartment
fro ide in an emergency
Applies to: vehicles with fixed rear backrests
Opening
SI 2
I
a ae

Fig. 35 Inner luggage compartment lid: lever
> Press the lever in the direction of the arrow un-
til the luggage compartment lid opens.
G) Tips
Never close the luggage compartment lid us-
ing
the emergency handle.
44

Child safety lock
The child safety lock prevents the rear doors
from being opened from the inside and the rear
power windows from being operated.

RAZ-0826






Applies to: vehicles with manual child safety locks
Fig. 37 Rear door: manual child safety lock
Vehicles with 8 button
Applies to: vehicles with power child safety locks
> To activate and deactivate the child safety lock
(door handle and power window switch) for the
a rear door, press the left or right 8 button in
the driver's door @) that corresponds to that
rear door > fig. 36. The indicator light in the
button turns on/blinks.
> Make sure the child safety lock is working by
checking the function on the rear power win-
dow switch and door handle.
Vehicles with 43 button
Applies to: vehicles with manual child safety lock
> To activate or deactivate the child safety lock
for the power window switch in the rear doors,
press the & button in the driver's door (2)
> fig. 36. The indicator light in the button turns
on/blinks.
> To activate or deactivate the manual child safe-
ty lock for the rear door handle, open the >

Opening and closing

Convenience opening and closing
Applies to: vehicles with convenience key

Convenience opening and closing the
windows and roof*
You can set in the MMI if all windows or the roof*
should open or close all at once > page 34, Set-
ting the central locking system.
> Press and hold the & or & button on the vehicle
key until all windows and the roof* have
reached the desired position > /\.
> Touch the sensor* on the door handle until all
of the windows and the roof* are closed. Do not
place your hand in the door handle when doing
this.
When all of the windows and the roof* are
closed, the turn signals will flash once.

ZX WARNING
— Never close the windows or the roof* care-
lessly or in an uncontrolled manner, because
this increases the risk of injury.
— For security reasons, the windows and the
roof* can only be opened and closed with
the vehicle key at a maximum distance of
approximately 6.5 feet (2 m) away from the
vehicle. Always pay attention when using
the f& button to close the windows and the
roof* so that no one is pinched. The closing
process will stop immediately when the &
button is released.
@) Tips
Applies to: vehicles with panoramic glass
roof: If the sunshade is closed, it will auto-
matically open partially or halfway when the
roof is tilted or opened.

46
Sliding/tilting sunroof
Applies to: vehicles with sliding/tilting sunroof


Fig. 39 Section of front headliner: sliding/tilting sunroof
button
The sunshade can be opened and closed manual-
ly in any position when the roof is closed. The
sunshade opens automatically when the roof is
opened.
Tilting and closing the roof
> To tilt the sunroof as far as possible, press the
<> button up briefly to the second level @).
> To close the sunroof completely, pull the 2>
button down briefly to the second level > A\.
> To set a partially open position, press or pull
the A> button to the first level until the roof
reaches the desired position.
Opening and closing the roof
> To close the sunroof completely, push the A>
button back briefly to the second level @).
> To close the sunroof completely, push the A>
button forward briefly to the second level
ofA.
> To select a partially open position, push the A>
button forward or back to the first level until
the desired position is reached.
Sunroof emergency closing
If an object is detected when closing, the roof
will open again automatically. In this case, you
can then close it with the power emergency clos-
ing function.
> Within five seconds after the sunroof opens au-
tomatically, pull the applicable button until the
roof is closed.

Opening and closing

@) Note
Always close the roof when you leave the vehi-
cle and when there is precipitation to reduce
the risk of damage to the interior equipment,
particularly the electronic equipment.
G) Tips
— After switching off the ignition, the roof and
sunshades can still be operated for several
minutes as long as neither of the front
doors have been opened.
— It is not possible to open the roof when
temperatures are too low.
Valet parking
Applies to: vehicles with valet parking function
The valet parking function can protect the lug-
gage compartment from unauthorized access.

The [VALET] button for valet parking is in the
glove compartment.
You can switch the valet parking function on, for
example when someone else is parking your vehi-
cle ). The vehicle can be driven, locked, and un-
locked using the vehicle key, but access to the
luggage compartment is blocked.
> Remove the mechanical key > page 37.
> Press the [VALET] button in the glove compart-
ment. The LED in the button turns on if the
function is switched on.
> Lock the glove compartment with the mechani-
cal key.
» Applies to: vehicles with lockable pass-through
and lockable rear seat backrests: To secure the
luggage compartment from the vehicle interior,
lock the pass-through and the rear seat backr-
ests using the mechanical key > page 86,
=> page 85.
> Give your vehicle key to the service personnel
who are parking your vehicle and keep the me-
chanical key.



D_ This function is not available in all countries.
2) The possible number of hand-held transmitters depends
on the equipment.
48
The following buttons are deactivated when the
valet parking function is switched on:
— <3 Button in the driver's door
— As Button on the vehicle key
— Handle in the luggage compartment lid
If the valet parking function is switched on, a
message will appear every time the ignition is
switched on.
@) Tips
Please note that the luggage compartment
can still be accessed from the vehicle interior
in vehicles with fixed rear seat backrests or
ones that cannot be locked, even when the
valet parking function is switched on.
Garage door opener
Applies to: vehicles with garage door opener
With the garage door opener, you can activate
systems such as the garage doors, security sys-
tems or house lights from inside your vehicle.
These functions are operated in the MMI. Multi-
ple receivers can be programmed, which can con-
trol the functions of up to eight2) hand-held
transmitters.

ZA\ WARNING
— When operating or programming the garage
door opener, make sure that no people or
objects are in the area immediately sur-
rounding the equipment. People can be in-
jured or property can be damaged if struck
when closing.
— Do not allow yourself to be distracted from
traffic by the viewing and operating the dis-
plays.
(i) Tips
— If you sell your vehicle, reset all settings to
the factory default settings > page 213.

>