2021 AUDI Q8 key battery

4M8012721BF

Quick access

Electrical system
=> page 251
Engine oil level (MIN)
=>page 245
Engine oil level (MAX)
=> page 245
Engine oil sensor
=>page 245
Malfunction Indicator Lamp (MIL)
> page 241,
Engine warm-up request
=> page 245
Washer fluid level
=> page 254
Windshield wipers
=> page 60
Parking systems
=> page 161
Park assist plus
=> page 173
Maneuver assist
=> page 180
Tire pressure
=> page 274, > page 276
Tire pressure
=> page 274, > page 276
Loose wheel warning
=> page 272
Bulb failure indicator
=> page 54
Adaptive light
=> page 54
Light/rain sensor
=> page 54, > page 60
Door lock
=> page 37
Battery in vehicle key
> page 41
Night vision assist
=> page 132
Intersection assist
>page 157












Side assist
=> page 155;
Exit warning
=page 155
Rear cross-traffic assist
=> page 166
Adaptive cruise assist
=>page 146
Steering intervention request
=> page 141, > page 148
Lane departure warning
=>page 149
Distance warning
=> page 146
Audi pre sense
=> page 153
Emergency assist
=>page 157
Emergency call function
=>page 198
Other
indicator lights
Rear safety belt
=> page 70
Start/Stop system
= page 103
Hill hold assist
= page 109
Low beam headlights
=> page 51
Parking lights
=> page 51
Turn signals
=> page 52, > page 53
Cruise control system
=> page 134
Cruise control system
=> page 134
Efficiency assist
=>page 135
Efficiency assist
=>page 135 >

4M8012721BF
Opening and closing

Unlocking and locking with the Audi connect
vehicle control service)’
Applies to: vehicles with Audi connect vehicle control
Requirement: Audi connect vehicle control serv-
ices must be set up > page 194, Audi connect ve-
hicle control services. The vehicle must be park-
ing and the ignition must be switched off.

ZA WARNING
Observe the safety precautions > page 35.

@) Tips
— Only use the vehicle key when you can see
the
vehicle.
— The vehicle can only be locked when the "P”
selector lever position is engaged.
— Do not use the vehicle key to lock and un-
lock when you are inside the vehicle. Other-
wise, you could trigger the anti-theft
alarm*. If this happens, press the @ unlock
button.
@) Tips
Applies to: vehicles with convenience key
— When unlocking or locking the vehicle, the
convenience key cannot be more than ap-
proximately 4 feet (1.5 m) away from the
door handle or luggage compartment.
— Unlocking with the convenience key (keyless
access) can be deactivated in the MMI sys-
tem > page 36.
—To prevent the vehicle battery from dis-
charging, the energy management gradual-
ly switches off convenience functions that
are not needed. You then may no longer be
able to unlock your vehicle with the sensors.

D In certain countries.
BS Tey ae-e am al a BC



Fig. 25 Vehicle key: removing the battery holder
LED in the vehicle key
The LED (@) indicates the vehicle key function.
> 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 vehicle key bat-
tery is drained. Replace the battery in the vehi-
cle key.
Replacing the vehicle key battery
> Remove the mechanical key > page 39 and in-
sert it at an angle into the opening > fig. 25.
> Push the mechanical key in the opening in the
direction of the arrow to operate the release
button on the inside @). To reduce the risk of
damage, do not try to pry off the cover.
> Remove the cover from the battery tray.
> Insert the new battery with the “+” symbol fac-
ing up.
> Close the battery tray with the cover.
> Insert the mechanical key.

Z\ 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. >

41

Opening and closing


— 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.
@ Tips
Replacement batteries for the vehicle key
must meet the same specifications as the
original battery.
Luggage compartment
lid
General information

— 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.

ZA\ 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 38. 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-
cle.
— 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.

42
@) Note
The luggage compartment lid can bump into
objects such as the garage ceiling when open-
ing and become damaged.
G) 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 36.

Opening and closing

> Press the <3 button in the luggage compart-
ment lid. Or
» Applies to vehicles with convenience key: When
the ignition is switched off, press the s/f}
button in the luggage compartment lid. The ve-
hicle 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 (* button, then the vehicle will
lock.
Storing the luggage compartment lid
opening position
The position must be at a certain height or higher
to store.
> Bring the luggage compartment lid into the de-
sired open position. If you want to move the
luggage compartment lid to a lower position,
move it slowly in small increments; otherwise,
the luggage compartment lid will close auto-
matically.
> Press and hold the <3 button in the luggage
compartment lid for at least four seconds to
store the new opening position. A visual and
audio signal will follow.
> To set a higher open position, wait at least five
seconds and then carefully press the luggage
compartment lid upward.
> Press and hold the <3 button again for at least
four seconds to store the desired opening posi-
tion.
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
Observe the safety precautions > page 42.


)) The closing function applies to vehicles that also have au-
tomatic luggage compartment lid operation.
44
@ 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.
Opening and closing the luggage
compartment lid with foot motion (kicking
movement)
Applies to: vehicles with sensor-controlled luggage compart-
ment lid

re a So
S
a



Fig. 28 Vehicle rear: foot motion (example)
The luggage compartment lid can be opened and
closed automatically 1) > A\ in General informa-
tion on page 42.
Requirements: you must be carrying your conven-
ience key* with you. The ignition must be switch-
ed off. You must be standard behind the luggage
compartment lid, toward the left side of the vehi-
cle. Depending on the equipment, it may also be
possible to stand near the center of the vehicle or
toward the right side of it.
> Move your foot back and forth under the bump-
er one time > fig. 28. Do not touch the bumper.
Make sure you have firm footing. The luggage
compartment lid will open or close » once the
system detects the movement. The automatic
opening or closing will be canceled if you re-
peat one of the movements described.

Z\ WARNING
Observe the safety precautions > page 42.

Storage and convenience

Storage and convenience
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 from the sockets
must not exceed a total of 120 watts. Do not
connect multiple devices to the sockets in the ve-
hicle at the same time.
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.

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.
— 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.
82
— Disconnect the connectors from the power
sources carefully to reduce the risk of dam-
aging them.
@ Tips
Do not connect any other devices to the sock-
ets when using the compressor* provided by
the factory > page 286. The power consump-
tion in the sockets may be temporarily ex-
ceeded when using the compressor*.
Cup holders
Applies to: vehicles with cup holders




Fig. 68 Rear center armrest*: cup holders
Cup holders in the front center console
> The cup holder (2) may be under a cover. To
open the cup holder, tap on the strip on the
cover.
Cup holders in the rear center armrest*
> Fold the center armrest* downward.
> To open the cup holder, tap on the button @).
> To close the cup holder, fold the cover back un-
til it clicks into place.

4M8012721BF
Driving

Driving
Starting the vehicle
pyr Told T ola (ela)



Fig. 83 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.


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.
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
vehicle 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:
— The Start/Stop system must have stopped the
engine.
— 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.

Z\ 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.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 96.
CG) 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.


95

Driving

— 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.
Messages
= 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.
FJ Engine start system: malfunction! Please
contact Service
There is a malfunction in the engine start system.
Drive immediately to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction repaired.
| 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
96
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 95, fig. 83.
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.
Securing the vehicle against rolling
Secure your vehicle to prevent it from rolling be-
fore exiting the vehicle.
> Set the parking brake.
> Select the “P” selector lever position.
> If parking on a steep road, turn the steering
wheel so that your vehicle will roll against the
curb in case it should start to move.
If one of these measures is not possible, for ex-
ample because there is no vehicle power, you
must secure your vehicle against rolling using ad-
ditional measures.
> Only park the vehicle on a level surface.
> Use suitable objects to block the front and rear
wheels.
Set the parking brake before selecting the “P” se-
lector lever position. This prevents too much
stress from being placed on the locking mecha-
nism when parking on a steep surface.

ZA WARNING
— Always set the parking brake when leaving
your vehicle, even if for a short period of >

4M8012721BF
Parking and maneuvering

— Your mobile device should have a sufficient
battery charge level. If necessary, charge
the mobile device before starting to drive.
— Do not use the remote controlled parking
function with devices that are faulty or dam-
aged or whose function is impaired. Only
use the operating systems approved by the
mobile device manufacturer.
— When using remote controlled parking, al-
ways pay attention to the areas where your
vehicle can be accessed. Check that no one
can enter your vehicle and if the vehicle has
been locked after parking is completed.
Take the vehicle key with you when leaving
the vehicle.
Applies to: vehicles with remote park assist plus
The following steps must be completed before
using for the first time:
> Create a myAudi account by registering in the
myAudi app or at my.audi.com, depending on
your country.
> Add your vehicle to your myAudi account.
> Set the key user > page 32.
> Install the myAudi app on your mobile device
and log in with your access information.
Device compatibility
The mobile device will be checked at the start of
a parking procedure. If an incompatibility is de-
tected, it will be displayed in the myAudi app.
Audi does not recommend using the function if
an incompatibility is detected > A\.
A selection of supported Bluetooth devices can
be found in the database for tested mobile devi-
ces at www.audi.com/bluetooth. Compatibility
cannot be guaranteed for all types of mobile de-
vices. The availability depends on the following
factors, among others:
— Brand and build version of the mobile device

D_ System availability may be limited depending on the mar-
ket.
2) In preparation at the time of printing.
3) Applies to: vehicles with remote park assist plus with ga-
rage function
— Version of the mobile device operating system
— Software version of the app used
— Individual settings on the mobile device

Z\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 121.
— There is a risk of an accident if an incompati-
ble mobile device is used. If there is a dis-
play indicating that functionality is restrict-
ed, the vehicle’s reaction speed may be im-
paired due to reduced transmission speed.
Parking options!)2)
Applies to: vehicles with remote park assist plus

Depending on the vehicle equipment, you may
have the following options when using remote
controlled parking:
Driving into parking spaces
— Parallel parking on the left or right side of the
street @ > page 168, fig. 126
— Driving forward or backing into perpendicular
parking spaces (2)/@) > page 168, fig. 126.
— Parking in one-car or two-car garages») ©)/@)
=> page 168, fig. 127
Exiting parking spaces
— Leaving perpendicular parking spaces @)
> page 168, fig. 128.
— Exiting parallel parking spaces (2).
— Exiting one-car or two-car garages?) ®.

Z\ WARNING
Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 121. >

175