2020 AUDI A8 key battery

4N0012721BD

Opening and closing

» Applies to: vehicles without convenience keys:
Unlock the vehicle using the B / <3 / As button
on the vehicle key and press the handle in the
luggage compartment lid. Or
> Applies to: vehicles with convenience key: Press
the handle in the luggage compartment lid.
The vehicle key cannot be more than approxi-
mately 4 feet (1.5 m) away from the luggage
compartment.
Closing the luggage compartment lid
> Applies to: vehicles without automatic luggage
compartment lid: Use the inside grip to pull the
luggage compartment lid down and allow it to
close using a gentle push. Or
> Applies to: vehicles with automatic luggage
compartment lid: See > page 51.

Z\ WARNING
Follow the safety precautions > page 50.

Automatic luggage compartment lid
Applies to: vehicles with automatic luggage compartment lid

RAZ-0082|

Fig. 39 Luggage compartment lid: @ closing button*, @)
lock button* (vehicles with convenience key*)
Opening the luggage compartment lid
> When the ignition is switched off, press and
hold the < button > page 47, fig. 35 on the
vehicle key for at least one second or press the
3 button twice. Or
> Engage the "P" selector lever position and pull
the <3 button* in the driver's door. Or
> Applies to: vehicles with convenience key: Press
the handle in the luggage compartment lid.
The vehicle key cannot be more than approxi-
mately 4 feet (1.5 m) away from the luggage
compartment.
Closing the luggage compartment lid
> Press the < button in the luggage compart-
ment lid. Or
> Press the handle in the luggage compartment
lid. Or
> Press the luggage compartment lid downward
slightly. Or
> When the ignition is switched on, pull the <>
switch in the driver's door > page 50, fig. 38
until the luggage compartment lid is closed. Or
> Applies to: vehicles with convenience key: With
the ignition switched off, press and hold the
<3 / As button on the vehicle key until the lug-
gage compartment lid is closed. Make sure
there is enough distance (maximum of approxi-
mately 9 feet (3 m)) between you and the lug-
gage compartment lid. Or
> Applies to: vehicles with convenience key: With
the ignition switched off, press the <4 / fi* but-
ton in the luggage compartment lid. The vehi-
cle 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.
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 < button or press the handle in
the luggage compartment lid again, the luggage
compartment lid will open again.

Z\ WARNING
Follow the safety precautions > page 50.
@® Tips
The luggage compartment lid can be operat-
ed manually if the vehicle battery is low. It is
necessary to use more force when doing this.
Move the lid slowly to reduce the amount of
force needed.

51

4N0012721BD
Stowing and using

Stowing and using
Power sources
When the ignition is switched on, you may be
able to use multiple power sources for external
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 port
You can charge mobile devices using the USB
ports. The USB ports are labeled with the «<> or
(4 symbol or CHARGE ONLY.
115 volt socket
Applies to: vehicles with 115 volt socket
The socket is located in the center console in the
rear and can be used for electrical devices > A\.
The power usage must not exceed 150 watts.
When you push the device connector all the way
into the socket, the child safety mechanism re-
leases and there is electric current.
—If the LED on the socket is green or flashes
slowly, then the socket is ready for use.
—If the LED is red and flashes quickly, there is a
malfunction in the connected device or the
socket is too hot. The socket will switch off for
safety reasons. To reactivate the socket, remove
the device connector. Connect the device after
correcting the malfunction or reconnect after a
brief cool-down period.

— Incorrect usage can lead to serious injuries
or burns. To reduce the risk of injuries, never
leave children unattended in the vehicle
with the key.


Z\ WARNING
Applies to: vehicles with 115 volt socket
—To reduce the risk of fatal injury, do not in-
sert any conductive objects, such as knitting
needles, into the contacts on the socket.
—To reduce the risk of fatal injury, do not spill
any fluids on the socket. Should any mois-
ture enter the socket, make sure that it has
dried out completely before using the socket
again.
— If devices or connectors that are heavy (such
as a power supply unit) are attached directly
to the socket, the holder can become dam-
aged, which increases the risk of injury.
— Using adapters and extension cables in-
creases the risk of injury because they over-
ride the safety devices for the socket.
—To reduce the risk of injury, remove the con-
nector of the connected device if the socket
has switched off due to a malfunction.


Z\ 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.

@) 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.
(i) Tips
Applies to: vehicles with 115 volt socket
— Devices that are not shielded or devices near
the rear window antenna can cause mal-
functions in the radio, TV, or vehicle electri-
cal system.
97

4N0012721BD
Driving

Driving
Starting the vehicle
Dye Tod f ola (ela)




Fig. 97 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 15.
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.
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 with
the selector lever in the P position and open the
driver's door. The steering lock helps prevent ve-
hicle theft.
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. The combustion engine must not be
running.
— You must have left the vehicle for longer than
30 seconds.
— 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.
The ignition will also be switched off after 30 mi-
nutes or if you lock the vehicle from the outside.

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 |P>


111

Driving


usual may increase the risk of accidents and
serious injuries.
— Always select the “P” selector lever position
when parking the vehicle; otherwise, the ve-

hicle could roll away.
C) 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.
G) 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.
— Power will be fully available once the engine
is at operating temperature.
= Engine start system: malfunction! Please
contact Service

Do not switch the ignition off because you may
not be able to switch it on again. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
|| Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine start system.
Drive immediately to an authorized Audi dealer
112
or authorized Audi Service Facility to have the
malfunction repaired.
B 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.
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 111, fig. 97.
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.
> Select the “P” selector lever position to secure
the vehicle from rolling away.
> Turn the steering wheel when parking on in-
clines so that the wheels will roll into the curb
if the vehicle starts moving.
> Switch off the ignition before leaving the vehi-
cle.
On hills, activate the parking brake first and then
shift into the "P" selector lever position. This >