2020 AUDI A3 key battery

8V2012721BK
Quick access




























Transmission
=> page 77
Drive system
=> page 82
Drive system
=> page 82
Drive system
=> page 82, > page 302
Drive system
=> page 82, > page 302
Drive system
=> page 82
Vehicle sound
=> page 82
Electromechanical parking brake
=> page 88
Hill hold assist
=> page 88
Engine start system
=> page 73
Keys
=> page 73
Electronic Stabilization Control
(ESC) ¥
=> page 93,>page 95
Electronic Stabilization Control
(ESC) ¥
=> page 93
Electronic Stabilization Control
(ESC)
=> page 94, > page 93
Anti-lock braking system (ABS) ¥
=>page 95
Anti-lock braking system (ABS) Y
=> page 95
Steering
=> page 92
Steering lock
=> page 92
Suspension control
=> page 92

Engine speed limitation
=>page 16
Tank system
=> page 300
Electrical system
=> page 314
Engine oil level (MIN)
=> page 308
Engine oil sensor
=> page 308
Malfunction Indicator Lamp (MIL)
v
=> page 303
Washer fluid level
=> page 317
Windshield wipers
=> page 52
Charging system
=> page 111
Tire pressure
=> page 337, or > page 339
Tire pressure
=> page 337, or > page 339
Bulb failure indicator
=> page 45
Headlight range control system
=>page 45
Adaptive light
=>page 45
Light/rain sensor
=> page 45, > page 52
Driver's door
=> page 29
Battery in remote control key
=> page 27
Power top
=> page 38
Side assist
=>page 135
11

8V2012721BK
Opening and closing

— For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
=> page 377.
LED and batteries in the remote control key

B8X-0506


Fig. 19 Remote control key (rear side): opening the cover
LED on the remote control key
The LED in the remote control key informs you of
the key operation.
> If you press a button briefly, the LED blinks
once.
> If you press and hold a button (convenience
opening/closing), the LED blinks several times.
> If the LED does not blink, the remote control
key battery is drained. The 2} indicator light
turns on and the message Please change key
battery appears. Replace the battery in the re-
mote control key.
Replacing the remote control key battery
> Pry the cover (2) off of the key @ using a coin
> fig. 19.
> Insert the new battery with the “+” facing up.
> Press the cover back onto the key until it clicks
into place.
@ 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.
@) Tips
Replacement batteries for the remote control
key must meet the same specifications as the
original battery.
Remote control key synchronization
The remote control key must be synchronized if
the vehicle does not lock/unlock with the remote
control.
> Press the & remote control key button.
> Insert the key in the driver's door lock within 30
seconds > page 30.
> Press the @ button or fj button.
Unlocking and locking by remote control

B8U-0317



Fig. 20 Remote control key or convenience key: button pro-
gramming
> To unlock the vehicle, press the (9 © fig. 20 but-
ton@.
> To lock the vehicle, press the > /\ button @
once.
> To unlock the luggage compartment lid, press
the <¥ button @) briefly.
> To open* the luggage compartment lid, press
and
hold the < button @) for at least one sec-
ond.
> To trigger the alarm, press the [PANIC] button
@. The vehicle horn and emergency flashers
are activated.
> To turn off the alarm, press the [PANIC] button
@ again.
If you unlock the vehicle and do not open any of
the doors, the hood, or the luggage compart-
ment lid within a short period of time, the vehicle
automatically locks again. This feature prevents




27

8V2012721BK
Power top



sure the rear passengers keep enough dis-
tance from the power top to reduce the risk
of injury.
— Visibility to the rear is limited when operat-
ing the power top. Avoid operating the top
while driving in reverse.

@) Note
— To prevent damage to the power top:
— do not store any objects in the power top
storage compartment.
— make sure there is enough space above
the vehicle when opening or closing the
power top.
—To reduce the risk of damage, make sure
there are no sensitive objects in the power
top storage compartment's range of mo-
tion.
G) Tips
— To prevent the vehicle battery from draining
unnecessarily, do not open or close the pow-
er top repeatedly when the engine is switch-
ed off.
—A message will appear in the instrument
cluster if there is a malfunction in the power
top > page 38.
— The power top can also be operated manual-
ly temporarily if there is a malfunction
=> page 39, Power top emergency opera-
tion. An authorized Audi dealer or author-
ized Audi Service Facility should diagnose
and correct the cause of the malfunction as
soon as possible.
— If the vehicle is parked with the power top
open, the vehicle interior is not protected
from damaging weather or unauthorized ac-
cess. Lock any items you leave behind in the
luggage compartment. Close the power top
before leaving the vehicle.
— The side windows automatically lower
slightly when opening or closing the power
top.
Power top convenience opening and closing
Applies to: vehicles with power top

B8V-0009 @)
"A
4



Fig. 35 Turning the key to open and close
Convenience opening with the driver door
lock
> Turn the key once in the driver door lock to the
opening position @).
> Turn the key to the opening position again
within two seconds and hold it there until the
power top opens completely.
Convenience closing with the driver door lock
> Turn the key once in the driver door lock to the
closing position @).
> Turn the key to the closing position again with-
in two seconds and hold it there until the pow-
er top closes completely.
Releasing the key stops the opening or closing
process immediately.

ZA\ WARNING
Read and follow the important safety precau-
tions > A\ in Opening and closing the power
top on page 36.

37

8V2012721BK
Seats

Adjusting the backrests
> To adjust the backrest forward or backward,
press the button @) forward or backward.
Adjusting the seat position
> To adjust the seat forward or backward, push
the button @) forward or backward.
> To adjust the seat upward or downward, push
the rear section of the button @) upward or
downward.
Adjusting the lumbar support
> To adjust the lumbar support, press the button
@) at the applicable location.
Adjusting the upper thigh support
> To can increase or decrease the upper thigh
support, lift the handle @). A spring moves the
support forward.
Adjusting the massage function
> Switching the massage function on or off ().
@) Tips
The massage function switches off automati-
cally after approximately 10 minutes.
Va
Applies
to: vehicles with entry assistance
Entry assistance makes it easier for the rear pas-
sengers to enter and leave the vehicle.

B8W-0269


ZA\ WARNING
—To reduce the risk of an accident, only adjust
the front seats when the vehicle is station-
ary.
— The power adjustment for the front seats al-
so works with the ignition switched off or
with the ignition key removed. To reduce the
risk of injury, children should never be left
unattended in the vehicle for this reason.
— Exercise caution when adjusting the seat
height. Unsupervised or careless seat adjust-
ment could cause parts of the body to get
pinched, which increases the risk of injury.
— The front seat backrests must not be re-
clined too far back when driving, because
this impairs the effectiveness of the safety
belts and airbag system, which increases the
risk of injury.


Fig. 66 Front seat: controls on the seat backrest: 1) back-
rest release, 2) power entry assistance
Power entry assistance
> Lift the handle @ and fold the seat backrest
forward.
> To move the seat all the way forward or to the
original position, press the @) button briefly.
You can stop the seat by pressing the button
again.
> You can move the seat all the way forward even
when the backrest is upright. Press and hold
the button 2) until the seat reaches your pre-
ferred position.


ZA WARNING
— Always make sure the front seats are upright
and securely locked in place.
— Power entry assistance also works when the
ignition is switched off!) or when the igni-
tion key is removed, so that rear seat pas-
sengers can still move to the front of the ve-
hicle in an emergency situation. To reduce
the risk of injury, children should never be
left unattended in the vehicle for this rea-
son.


D_ Requirement: the vehicle battery must have a sufficient
charge level.
55

8V2012721BK
Stowing and using

Stowing and using
Power sources
When the ignition is switched on, you may be
able to use the electric power sources for exter-
nal devices, depending on the vehicle equipment.
12 volt sockets
You can connect electrical accessories to the 12
volt sockets. The power usage must not exceed
120 watts.
The 12 volt sockets are labeled with the 12V
symbol. They are located in the front center con-
sole, in the rear* and on the side trim panel in the
luggage compartment*.
USB ports
Applies to: vehicles with USB input
You can charge mobile devices using the USB
ports. The USB ports are labeled with the «<> or
(4 symbol or CHARGE ONLY.


ZX WARNING
— To reduce the risk of fatal injury, store all
connected devices securely when driving so
that they do not move around inside the ve-
hicle when braking or in the event of an acci-
dent.
— Incorrect usage can lead to serious injuries
or burns. To reduce the risk of injuries, never
leave children unattended in the vehicle
with the vehicle key.

© Note
— Read the operating manuals for the con-
nected devices.
—To reduce the risk of damage to the vehicle
electrical system, never attempt to charge
the vehicle battery by connecting accesso-
ries that provide power to the power sour-
ces.
— Do not connect any device whose network
class (voltage) does not match the network
class designed for the socket.
— Disconnect the connectors from the power
sources carefully to reduce the risk of dam-
aging them.
Storing
Cup holders
z z
S
g| = & ()

Fig. 72 Rear center armrest: cup holders*
Your vehicle has cup holders in the front center
console, in the door pockets, in the rear bench
seat* and/or in the rear center console”.
Rear cup holders*
> Fold the center armrest* downward.
> To open the cup holders, press inward on the
trim @.
> To place the beverage container in the cup hold-
er, push the arm (8) outward.
> Then push the arm against the beverage con-
tainer so that the arm lies closely against it.
> To close the cup holders, push them back into
the slot.

ZA\ WARNING
— Do not put any hot beverages in the cup
holder while the vehicle is moving. Hot bev-
erages could spill, which increases the risk
of injury.
— Do not use any breakable beverage contain-
ers (for example, made out of glass or por-
celain). You could be injured by them in the
event of an accident.
CG) Note
Beverage containers in the cup holders should
always have a lid. Otherwise, the liquid inside
could spill and cause damage to vehicle
equipment.

s9

Warm and cold

switching the ignition off and switching it on
again.
Adjusting the vents

Fig. 83 Cockpit: adjusting the air vents
The following settings are possible:
-@ Air flow amount
-—@Air flow direction
To adjust the air flow amount, turn the ridged
outer adjusting ring @. To stop the air flow, turn
the adjusting ring all the way to the right.
To adjust the air flow direction, turn the air vent
grill insert 2).
Steering wheel heating
Scale Rie mola
Applies to: vehicles with steering wheel heating
> Press the @ button on the multifunction steer-
ing wheel to switch the steering wheel heating
on and off.
G@) Tips
The steering wheel heating settings are stor-
ed automatically and assigned to the vehicle
key that is in use.
Messages
Applies to: vehicles with steering wheel heating
@ Steering wheel heating: on / Steering wheel
heating: off
This message appears if you switched the steer-
ing wheel heating on or off by pressing the @
button on the multifunction steering wheel.
68
Steering wheel heating: malfunction! See own-
er's manual
If this message appears, there is a malfunction.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
Auxiliary climate control
Applies to: vehicles with auxiliary climate control
The auxiliary climate control system warms or
cools the vehicle interior. The vehicle will turn on
the auxiliary climate control system if needed,
depending on the last temperature that was set
with the climate control system controls. This
function can be used when the drive system is
switched off.
You can turn the auxiliary climate control system
on and off immediately in the Infotainment sys-
tem or set a timer.
Requirement: the high-voltage battery must have
a sufficient charge level and there must be
enough fuel in the tank.
@) Tips
— The temperature that the climate control
system adjusts to depends on the last tem-
perature you set in the climate control unit.
— Using the auxiliary climate control while
charging can also reduce the charge level of
the high-voltage battery.
— The auxiliary climate control system will not
turn on automatically or will turn off earlier
if the high-voltage battery charge or fuel
supply are too low, even if the vehicle is be-
ing charged at the time.
— Starting or stopping the vehicle will not
switch off the auxiliary climate control auto-
matically.

8V2012721BK
Driving

Driving
Starting the vehicle
ead
Applies to: vehicles with convenience key



Fig. 84 Center console: starting the engine
Requirement: the key must be in the vehicle.
Starting the engine
> Press and hold the brake pedal.
> Press the [START ENGINE STOP] button. The



engine will start.
Plug-in hybrid drive: the electric drive system is
switched on. The combustion engine only starts
when necessary. The power meter indicates if the
electric drive system is switched on > page 16.
Equipment that uses a lot of electricity is switch-
ed off temporarily when you start the engine. If
the engine does not start immediately, the start-
ing procedure stops automatically after a short
time. If this is the case, repeat the starting pro-
cedure after approximately 30 seconds.
When temperatures are low, the engine may only
start in “P”.
Stopping the engine
> Bring the vehicle to a full stop.
> Press the [START ENGINE STOP] button. The



engine will switch off.
Plug-in-hybrid drive: the electric drive system and
the combustion engine are switched off.
Applies to: vehicles with steering lock: The steer-
ing is locked when you turn off the engine and
open the driver's door. The steering lock helps
prevent vehicle theft. “P” must be engaged on
vehicles with an automatic transmission.
Stopping the engine in an emergency
If necessary in an emergency, the engine can also
be stopped while driving using the emergency off
function*.

> Press the [START ENGINE STOP] button twice in
a row or press and hold it one time.

Switching on and off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:

> Press the [START ENGINE STOP] button without
pressing the brake pedal.

Switching the ignition off automatically
To prevent the vehicle battery from draining, the
ignition and possibly the exterior lighting may
switch off automatically.
Requirements:
— Conventional drive system: the Start/Stop sys-
tem must have stopped the engine.
— Plug-in hybrid drive: you must have driven the
vehicle. If the gasoline engine is not running
— You must not be in the vehicle.
— The ignition must be switched on.
Among other indicators, the system detects that
you have left the vehicle based on the following
factors:
— The driver's door has been opened.
— The driver's safety belt has been unbuckled.
— The brake pedal is not being pressed.

A WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and
power steering. You would then need to use
more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and


serious injuries. >

71

8V2012721BK
Driving

Switching the ignition on or off
If you would like to switch the ignition on or off
without starting the engine, follow these steps:
> Switching on: turn the key to position @.
> Switching off: turn the key to position ©).

ZA WARNING
—To reduce the risk of asphyxiation, never al-
low the engine to run in confined spaces.
— Never turn off the engine before the vehicle
has come to a complete stop. Switching it
off before the vehicle has stopped may im-
pair the function of the brake booster and
power steering. You would then need to use
more force to steer and brake the vehicle.
The fact that you cannot steer and brake as
usual may increase the risk of accidents and
serious
injuries.
— Never remove the ignition key from the igni-
tion lock while the vehicle is moving. Other-
wise, the steering lock could engage and you
would not be able to steer the vehicle, which
increases the risk of an accident.

@) Note
— Avoid high engine speed, full throttle, and
heavy engine load if the engine has not
reached operating temperature yet. You
could damage the engine.
— If the engine has been under heavy load for
an extended period of time, heat builds up
in the engine compartment after the engine
is switched off and there is a risk of damag-
ing the engine. For this reason, let the en-
gine run at idle for approximately two mi-
nutes before shutting it off.
@ Tips
— Brief noises are normal when starting and
stopping the vehicle and are no cause for
concern.
— For up to 10 minutes after stopping the en-
gine, the radiator fan may turn on again au-
tomatically or it may continue to run, even if
the ignition is switched off.
— It may not be possible to start the vehicle in
extremely low temperatures.
5 Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine starting sys-
tem. Drive immediately to an authorized Audi
dealer or authorized Audi Service Facility to have
the malfunction repaired.
B Key not in vehicle?
2 Remote control key: key not detected. Is the
key
still in the vehicle?
The vehicle key was removed from the vehicle
while the engine is running. If the vehicle key is
no longer in the vehicle, you cannot switch the ig-
nition on or start the engine once you stop it. You
also cannot lock the vehicle from the outside.
Key not recognized. See owner's manual
Remote control key: hold back of key
against the designated area. See owner's man-
ual
The battery in the vehicle key may be drained or
there may be a malfunction. To start the vehicle,
you must also hold the vehicle key against the lo-
cation shown ?) © page 71, fig. 84.
If the malfunction remains, drive immediately to
an authorized Audi dealer or authorized Audi
Service Facility to have the malfunction correct-
ed.
When driving
Starting to drive, stopping, and parking
Starting from a stop
> Press and hold the brake pedal.
> Start the engine.
> Select a gear.
> Release the parking brake.
> Release the brake pedal. The vehicle may roll.
> Press the accelerator pedal to accelerate.
Stopping and parking
> Bring the vehicle to a full stop and press and
hold the brake pedal.
> Set the parking brake.
73