2015 AUDI A8 battery

40 Opening and closing
the remote control key is left in the lug­
gage compartment, luggage compart­
ment will automatically unlock itself af ­
ter you lock the vehicle. This prevents
you from unintentionally locking your key in the luggage compartment.
- When the vehicle is locked, the luggage
compartment lid can be unlocked sepa­ rately by pressing the button<=:> on the
master key . When the luggage compart­
ment lid is closed again, it locks auto­
matically.
- If the vehicle battery charge drops be­
low a certain level, you can still open or
close the luggage compartment lid man­ ually, however, you will need to apply
more force to close it.
Luggage compartment with movement­
activated opening
Applies to vehicles: with conven ience key and sensor-con­
trolled luggage compart ment lid
Fig. 31 Rear of ve hicle: foot move men t
Requirements : You must be carrying your ve­
hicle key with you . You must be standing at
the center behind the luggage compartment
lid. The distance to the rear of the vehicle
must be at least 8 inches (20 cm). The igni­
tion must be switched off. Make sure you have
firm footing.
.. Swing your foot forth and back below the
bumper ~
fig. 31. Do not touch the bumper.
Once the system recognizes the movement,
the luggage compartment lid will open .
The luggage compartment lid will only open if
you make the movement as described. Th is
prevents the luggage compartment lid from
opening due to simila r movements such as when you walk between the rear of the vehicle
and your garage door.
General information
In some situations, the function is limited or
temporarily unavailable. This may happen if:
- the luggage compartment lid was just
closed .
- you park close to a hedge and the branches move back and forth under the vehicle for a
long period of time.
-you clean your vehicle, for example with a
pressure washer or in a car wash.
- there is heavy rain .
- the bumper is very dirty, for example after
driving on salted roads.
- there is interference to the radio signal from
the vehicle key, such as from cell phones or remote controls .
Luggage compartment lid emergency
, release
If the central locking system fails, the lug­
gage compartment lid can be opened at the
lock cylinder.
(111)
A UC, ,.
Fig. 32 Lu gga ge compart men t lid: mec ha nic al key in
the lock cylinder
.. Remove the mechanical key~ page 32.
.. Insert the key in the lock cylinder aspic­
tured .
.. Turn the key approximately 45° to the right
~ fig. 32. The luggage compartment lid
opens.
In this position the key cannot be pulled out
of the lock cylinder.

42 Opening and closing
Closing the windows
.,. Pull the switch to the first stop and hold it
until the window reaches the desired posi­
tion .
.,. Pull the switch briefly to the
second stop to
automatically close the window.
Power window switches
@ Driver's door
@ Passenger's door
© Left rear door
@ Right rear door
® Safety button (or two safety buttons in
vehicles w ith power child safety locks
r::!) page 41)
Child safety lock
When the safety button®¢ fig. 35 is press­
ed, the LED in the button lights up. The fol­
lowing features are switched off:
- The power windows in the rear doors,
- The buttons for the power sun shades * in
the side windows,
- The buttons for the power sun shade* in the
rear window,
- Front passenger power seat adjustment*
button.
&_ WARNING
- When you leave your veh icle - even if on­
ly brief ly - always take the ignition key
with you. This applies particularly when children remain in the veh icle. Otherwise
the chi ldren could start the engine or op­
erate electrical equipment (e.g. power
w indows). The power windows are func­
tional until the driver's door or passeng­
er's door has been opened .
- Be careful when closing the windows.
C heck to see that no one is in the way, or
serious injury could result!
- When locking the vehicle from outside,
the vehicle must be unoccupied since the
windows can no longer be opened in an
emergency.
(D Tips
- The driver can lower or raise the power
sun shades* in the s ide windows by using
switches © and @.
- After the ignition has been switched
off,
the windows can sti ll be opened or
closed for about 10 minutes. The power
w indows are not switched off until the
dr iver's door or passenger's door has
been opened .
What to do after a malfunction
The one-touch open and close function must
be reactivated if the battery has been discon­
nected .
.,. Pull and hold the power window switch until
the window is fully closed .
.,. Release the sw itch and then pull it again for
at least one second.
Valet parking
The valet parking feature protects the lug­
gage compartment from unauthorized ac­
cess .
Fig. 36 Valet parking button
With "valet parking" activated , the luggage
compartment lid cannot be opened .
.,. Remove the mechanica l key
¢ page 32.
.,. Open the glove compartment and activate
¢ fig. 36 the "valet parking" feature by
pressing the
j VA LETi button . The indicator
light in the sw itch illuminates .
.,. Close the glove compartment and lock it
w ith the mechanical key . .,.

7 4 Seats and storage
12-volt sockets
Applies to vehicles: 12-volt socke ts
Electrical accessories can be connected to ev­
ery 12-volt socket.
Fig. 78 Section of the trim panel of the luggage com­
partment: 12-volt socket
Fig . 79 Rear center console: 12-volt socket
.. Open the socket cover¢ fig. 78 or¢ fig . 79 .
.. Insert the plug of the electrical device into
the socket .
There is an additional 12 volt socket in the
front center console¢
page 74, fig. 80.
The 12 volt sockets can be used for electrical
accessories. The power input must not exceed
120 watts.
Before you purchase any accessories, always
read and follow the information in
<::> page 292, Additional accessories and parts
replacement.
A WARNING
The sockets and the electrical accessories connected to them operate only when the
ignition is switched on. Incorrect usage
can lead to serious injuries or burns. To re­
duce the risk of injuries, never leave chil- dren
unattended in the vehicle with the
ve­
hicle key.
(D Note
To avoid damaging the socket, only use plugs that fit properly .
-Never connect equipment that generates
electrical current, such as a solar panel
or battery charger, to the 12 volt socket.
This could damage the vehicle's electri­
cal system.
- The 12 volt socket should only be used
for a short period of ti me as a power
source for electrical equipment. Please
use the electrical sockets in the vehicle
when connecting equipment for longer periods.
(D Tips
When the engine is off and accessories are
still plugged in and are on, the vehicle bat­
tery can still be drained .
Storage
'(upholder
Fig. 80 Center console: front cupholder
Fig. 81 Section of the rear bench seat: rear cupholder Ill>

76 Seats and storage
become a hazard for vehicle occupants in
the event of sudden braking or a crash.
- Always remove objects from the instru­
ment panel. Any items not stored could
slide around inside the vehicle while driv­
ing or when accelerating or when apply­
ing the brakes or when driving around a
corner.
- When you are driving make sure that
anything you may have placed in the cen­
ter console or other storage locations cannot fall out into the footwells. In case
of sudden braking you would not be able
to brake or accelerate.
- Any articles of clothing that you have
hung up must not interfere with the driv­
er's view. The coat hooks are designed
only for lightweight clothing. Never hang
any clothing with hard, pointed or heavy
objects in the pockets on the coat hooks.
During sudden braking or in an accident -
especially if the airbag is deployed -
these objects could injure any passen­ gers inside the vehicle .
- To reduce the risk of personal injury in an
accident or sudden stop, always keep the
glove compartment closed while driving .
- Read and follow all WARNINGS
¢ page 170, Important safety instruc­
tions on the side airbag system.
- Hang clothes in such a way that they do
not impair the driver's vision.
- The coat hooks must only be used for lightweight clothing . Do not leave any
heavy or sharp edged objects in the pock­
ets which may interfere with the side cur­
tain airbag deployment and can cause
personal injury in a crash.
- Do not use coat hangers for hanging
clothing on the coat hooks as this can in­
terfere with proper deployment of the
side curtain airbags in an accident.
- Do not hang heavy objects on the coat
hooks, as they could cause personal in­
jury in a sudden stop.
(D Note
Objects located on the rear shelf that rub
against the rear window could damage the
heating wires for the rear window defog­
ger.
@ Tips
- A vent slot is located between the shelf
and the rear window. Do not block the
vent with any items you may place on the
rear window shelf.
- Do not place bulky items on the rear win­
dow shelf as they could restrict or block
the driver's vision in the rear view mirror.
Cooler
Introduction
Applies to vehicles: wi th coo ler
Please clean the cooler before using it for the
first time ¢
table on page 216.
You can only switch on the cooler if
- the temperature in the luggage compart­
ment is below 131 °F (55 °C). The cooler
switches off automatically if the tempera­
ture in the luggage compartment exceeds
131 °F (55 °C). Once the temperature falls
below 131 °F (55 °C) again, the cooler
switches on again automatically.
- the battery is adequately charged. The cool­
er switches off automatically if the vehicle
battery voltage falls below a minimum lev­
el. This prevents the battery from discharg­ ing. The cooler switches back on again auto­
matically when the battery voltage increases
again (e .g. after starting the engine).
The cooler cools to 42.8 °F
(+ 6 °C) and the
freezer cools to 21.2 °F (-6 °C) in optimum
cooling conditions. The cooling performance
is affected by the temperature in the luggage
compartment . The temperature inside the
cooler will be higher if the luggage compart-
ment is hot. .,.

Starting the engine if there is a
malfunction
It may not be possible to start the engine un­
der certain circumstances , for example if the
battery in the vehicle key is drained , if inter ­
ference hos affected the key or if there is a
system malfunction.
i :c _ ____ ;&
Fig. 89 Center console/master key : starting the engine
if th ere is a m alfunction
Requirement : The message Key not re cog­
nized. Hold b ack of key against marked area.
See owner's manual.
must appear and the in­
dicator light
II must switch on .
"' Hold the master key vert ica lly in the loca­
tion indicated
y >>) c::> fig. 89.
"' Press the brake pedal i=:> A in Starting the
engine on page 83 .
"'Press the j ~s_T_A_R_T_E_N_G _I_N _E_ S_T_O_P~I button . The
engine will start .
"' Drive to your au thor ized Audi dealer imme­
diately to have the malfunct ion corrected .
(D Tips
You can view the message again by press­
ing the
! START ENGINE STOP I button.
On the road 85
Electromechanical
parking brake
Operation
The electromechanical parking broke replaces
the hand broke.
Fig. 90 Center co nsole: Parking b rake
"' Pull on the switch © i=:> fig. 90 ® to apply
the parking brake. The indicator lights in the
switch and. (USA models)/ . (Cana-
da models) in the instrument cluster illumi­
nate .
"' With the ignition switched on, step on the
brake peda l or the accelerator pedal and
press the switch <®lat the same time to re­
lease the parking brake . The indicator lights
in the switch and. (USA mode ls)/ . (Can­
ada models) in the instrument cluster go
out .
Your vehicle is equipped with an electrome­
chanical parking brake. The parking brake is
designed to prevent the vehicle from rolling unintentionally and replaces the hand brake.
In addit ion to the normal functions of a tradi­
tiona l hand brake, the electromechanical
parking brake provides vario us convenience
and safety functions .
When starting from rest
-The integral start ing assist helps you when
driving by automatically re leasing the park­
i ng brake
i=:> page 86, Starting from rest.
- When start ing on inclines , the starting as-
sist prevents the vehicle from unintentiona l-
ly rolling back. The braking force of the
parking brake is not re leased until sufficient
111>

88 On the road
switched off. More force is required to
stop and to steer the vehicle.
- To reduce the risk of injuries, make sure
that the Start-Stop-System is turned off
when working in the engine compart­
me nt¢
page 89.
(D Note
Always switch off the Start-Stop -System
when driving through water ¢
page 89.
Starting/stopping the engine
Applies to vehicles: with Start-Stop-System
Fig . 91 In strument duster : eng ine switc hed off (stop
phase)
~ Slow the vehicle to a stop using the brake
and keep pressing the brake pedal. The en­
gine w ill switch off. The
11] indicator light
appears in the information line in the instru­
ment cluster display.
~ When you take your foot off the brake ped­
al, the engine restarts . The ind icator light
turns off.
Additional information
The engine w ill switch off in the P, D, N and S
positions as well as in manua l mode. In the P
position, the e ngine will also remain off if you
take your foot off the brake pedal. The engine
starts again when you select another se lector
lever position and take your foot off the brake
pedal.
If you select the R position during a Stop
phase, the engine will start again .
Shift from D to P quickly to prevent the engine
from starting unintentionally when shifting
through R. You
can determine for yourself if the engine
will stop or not by reducing or increasing the
amount of force you use to press the brake
pedal. For example, if you only lightly press
on the brake pedal in stop-and and-go traffic
or when turning, the engine will not switch off
when the vehicle is stationary. As soon as you
press the brake down harder, the engine wi ll
switch off.
General information
Applies to vehicles: with Start-Stop-System
The standard Start-Stop-mode can be cancel­
led for different system-related reasons.
Fig. 92 Instrument cluster: eng ine -Stop temporarily
unavailable
Engine will not switch off
Before each stop phase, the system checks if
certain conditions have been met. For exam­
ple, the eng ine will
not be switched off in the
following situations:
- The engine has not reached the minimum
requ ired temperature for Start-Stop-mode.
- The interior temperature selected by the A/C
system has not been reached.
- The outside temperature is extremely high/
low.
- The windshield is being defrosted
¢page 81.
-The parking system* is switched on.
- The battery charge level is too low.
- The steering wheel is sharply turned or
there is a steering movement.
- After engaging the reverse gear.
- On sharp incl ines.

The@j indicator light appears in the informa ­
tion line in the instrument cluster display
<:!)fig. 92 .
Engine automatically restarts
The stop phase is interrupted in the following
situations, for examp le. The engi ne restarts
without any action by the driver.
- Th e interior temperature varies from the
temperatu re selected in the A/C system.
- The windshield is being defrosted
r::!) page 81 .
-The brake pedal is pressed several times in a
row.
- The battery charge level becomes too low.
- High power consumption .
Switching the ignition off automatically
To prevent the battery from draining, the igni­
tion will switch off
automatically when all of
the following conditions have been met:
- The vehicle has al ready been driven.
- The eng ine has been turned off by the Start-
Stop-System*.
- The driver's door is opened.
- The driver's seat belt is removed .
- The brake pedal is not pressed down.
- The vehicle is stationary .
In this case, the activated low beam will be re­
placed by the side marker lights. The side
marker lights will switch off after approxi­
mately 30 minutes or when you lock the vehi­
cle .
If the Start-Stop System has
not turned off
the engine or if you have switched the Start­
Stop system off manually, the ignition w ill
not
be automatically switched off and the engine
will cont inue to run
r::!) .&. .
A WARNING
Never allow the engine to run in confined
spaces - danger of asphyxiation.
(D Tips
If you shift into the D, N or S positions af­
ter shift ing into reverse, the veh icle must
On the road 89
be driven faster than 6 mph (10 km/h) in
order for the engine to switch off again.
Switching the Start-Stop-System on/off
manually
App lies to vehicles: wit h Start -Stop -System
If you do not wish to use the system, you can
switch it off manually.
Fig. 93 Center console: Start -Stop -System button
.,. To switch the Sta rt-Stop-System off/on
manually, p ress the
ICA.> ••I button. The L ED in
the button turns on when the system is
sw itched off.
(D Tips
If you switch the system off during a stop
phase, the engine will start again auto­
ma tically .
Messages in the instrument cluster
display
Applies to vehicles: wit h Start-Stop-Syste m
Start-Stop system deactivated: Please re­
start engine manually
This message appears when specific condi­
tions are not met during a stop phase and the
Start-Stop-System will
not be able to restart
the engine. If the Dor R selector lever posi­
tions were engaged, P will be selected auto­
matically . The engine must be started with
the
I START ENGINE ST OP ! button.
Start-Stop system: System fault! Function
unavailable
There is a malfunction in the Start-Stop-Sys­
tem. Drive the vehicle to an authorized repair .,.

.... N .... N
0 J:
'SI: .... \!) 1.1"1
.... 1.1"1 ....
@ Tips
-Side assist is not active whi le you are
making the adjustment.
- Your settings are automatica lly stored
and assigned to the remote control key
being used.
Driver messages
Applies to vehicles: with side assist
If side ass ist switches off by itself, the LED in
the button turns off and a message will ap­
pear in the instrument cluster d isplay:
Audi side assist: Currently unavailable . No
sensor vision
The radar sensors' vision is affected. Do not
cover the area in front of the sensors with bike
wheels, stickers, dirt or other objects. Clean
the area in front of the sensors, if necessary
c>page 105, fig . 114.
Audi side assist: Currently unavailable
Side assist cannot be swi tched on temporarily
because there is a malfunction (for example,
the battery charge leve l may be too low) .
Audi side assist: System fault!
The system cannot guarantee that it will de ­
tect vehicles correctly and it is switched off .
The senso rs have been displaced or are faulty.
Ha ve the sys tem checked by an authorized
Aud i dealer o r autho rized Aud i Service Fac ilit y
soon.
Audi side assist: Unavailable when towing.
Side assist sw itches off automatically when a
factory- installed trailer hitch is connected to
the electrical connector on the trailer. There is
no guarantee the system will switc h off when
using a retrofitted trailer hitch. Do not use
side assist when towing a trailer .
Audi side assist 107