AUDI A8 2015 Owner's Guide

Instrument s and warning /indicator lights 29
(D Note
To prevent sc ratches on the g lass covering
the Head-up Disp lay, do not place any ob ­
jects i n the projection opening.
(D} Tips
- Sunglasses with polarizat ion fi lters and
u nfavo rable lighting condit ions can af­
fect the display.
- A specia l windshield is needed for the
Head-up Display funct ion .
- Fo r information on cleaning, refe r to
c:!) table on page 216.
Open door/hood/rear lid warning
Fig. 16 Dis play: door s and rear lid o pe n
W ith the ignition swi tched on , the w arning il ­
l um ina tes when at le ast
one d oor or the hood
or the rear lid is not closed . The symbol also
shows you
which door(s) or lid is not closed.
I n the illus trati on
Q fig. 16 it i s the drive r's
door and the left rear door.
On-Board Diagnostic
system (OBD)
Malfunction Indicator Lamp (MIL)
The Malfunction In dica tor Lamp (M IL) ¢..ifl in
the ins trument clus ter is part of the On-B oard
D iagnostic (OB D II) system .
The warning/ind icator l ight illum ina tes when
the ign ition is switc hed o n and goes o ut afte r
the eng ine starts and the idle has stabilized.
This indicates that t he MIL is working proper ·
Ly .
If the light does not go out afte r th e engine
is starte d, or illumi nates while you are driv­
i ng , a mal function may e xist in the eng ine sys ­
tem .
If the light illumi nate s, the catalytic con­
verter could be d amaged .
Contin ue d riving
with reduced power (avo id­
i ng s usta ined h igh speeds and/or rapid accel ­
erations) and have the cond ition corrected .
Contact your authori zed Audi dea ler.
If the light illuminates, the electronic speed
li miter may also be malfunct ioning. For more
i nformation
Q page 30, Elec tronic speed
limiter.
An imprope rly closed fuel fille r cap may a lso
ca use the MIL light to ill uminate
~ page 223.
On-Board Diagnostics
Fig. 17 Locat io n of Data Link Co nn ector (D LC)
On- Boa rd Diagnost ics monitors the compo­
nents of your emiss ion cont ro l s ystem. Each
monitored component in your eng ine system
has been ass igned a code . In case of a mal­
funct ion, the component will be identified
and the fault stored as a code in the control
module memory.
T he MIL light may also illuminate if there is a
leak in the on -board fuel vapor recovery sys­
tem. If the lig ht illuminates after a refueling,
stop the vehicle a nd make sure the fuel fi ller
cap is prope rly closed
c:!) page 223.
In order to make an accurate diagnosis, the
stored data can on ly be displayed using spe­
c ia l diagnostic equipment (generic scan tool
furOBru.
~

30 Instruments and warning /indicator lights
In order to connect the special diagnostic
equipment, push the plug into the Data Link
Connector (DLC) . The DLC is located to the
right of the hood release<=>
fig. 17.
Your authorized Audi dealer or a qualified
service station can interpret the code and per­
form the necessary repa ir .
.&_ WARNING
Do not use the diagnostic connector for
personal use. Incorrect usage can cause
malfunctions, which can increase the risk
of a coll is ion!
Electronic speed limiter -
Your veh
icle may be factory equipped with
tires that are rated for a maximum speed of
130 mph (210 km/h). Thi s is less than the
maximum speed of your vehicle. To reduce the
risk of sudden tire failure and loss of control if
the vehicle is operated at excessive speeds,
your vehicle also has an electronic speed limit­
er. The electronic speed limiter prevents your
vehicle from going faster than the tire speed
rating. For more information
c> page 256.
If the engine control unit receives faulty vehi­
cle road speed signals, the Malfunction Indi­
cator Lamp (MIU
¢'4 will illuminate. If this
occurs, contact the nearest authorized Aud i
dealer for assistance .
S8
Your vehicle's top speed is e lectronically limit­
ed to 155 mph (250 km/h).
If the engine control unit receives faulty vehi ­
cle roadspeed signals, the Malfunction Indica­
tor Lamp (MIU
¢'4 will illuminate. If this oc­
curs, contact the nearest authori zed Audi
dealer for assistance .
.&_ WARNING
-
Always observe the posted speed limits
and adjust your speed to suit prevailing
road, traffic and weather conditions. Never
dr ive you r vehicle faster than the maxi­
mum speed rating of the tires installed.

.... N .... N
0 J:
"". .... I.O
"' ....
"' ....
Opening and closing Keys
Key set
Fig. 18 Key set
@ Remote control key with mechanical
key
You can centrally lock and unlock your vehicle
and start the engine with the master key with
remote control. A mechanical key is integrat­
ed in the remote control key¢
page 32.
® Emergency key
The emergency key is not intended for con­
stant use.
It should only be used in an emer­
gency. Keep it in a safe place and do not carry
it on your key ring .
Key replacement
If you lose a key, contact your authorized Audi
dealer immed iately to have the
lost key disa­
bled. Be sure to bring all your keys with you.
Personal comfort settings
If two peop le use one vehicle, it is recom­
mended that each person always uses "their
own" master key. When the ignition is switch­
ed
off or when the vehicle is locked, personal
conven ience settings for the following sys­
tems are stored and ass igned to the remote
master key.
- Automatic climate control
- Central locking system
- Rear window sun blind
- Amb ient lighting
- Seat memory
- Parking system*
Opening and closing 31
- Adaptive cruise control*
- Audi active lane assist*
-Audi side assist*
-Audi drive select
- Night vision assistant*
- Heated steering wheel*
The stored settings are automatically recalled
when you unlock the vehicle, when you open
the doors or when you switch the ignition on.
A WARNING
---Do not leave your vehicle unattended. Al-
ways take your ignition key with you and
lock your vehicle . Entry by unauthorized
persons could endanger you or result in
theft or damage the vehicle.
- Do not leave ch ildren unattended in the
veh icle, especially with access to vehicle
keys. Unguarded access to the keys pro­
vides children the opportun ity to start
the engine and/or activate vehicle sys­
tems such as the power windows, etc.
Unsupervised operation of any vehicle
system by children can result in serious
injury.
(!} Tips
- Th e operation of the remote control key
can be temporarily disrupted by interfer­
ence from transm itters in the vic inity of
the vehicle working in the same frequen­
cy range (e.g. a cell phone, radio equip­
ment).
- For security reasons, replacement keys
are only ava ilable from Audi dealers.
- For Declaration of Compliance to United States FCC and Industry Canada regula­
tions ¢
page 293.

32 Opening and clo sing
Remov ing the mechanical key
Fig. 19 Remote control master key : removing the me­
chanical key
.. Press the release button@r=>.> fig. 19.
• Pull the mecha nica l key @ out of the master
key.
Using the mechan ica l key, you can:
- lock and unlock* the storage compartment
on the passenger's side c::>
page 75.
-lock and unlock the vehicle manually
<=>page 36.
-lock the front and rear passenger doors me­
chanically
c::> page 37.
- unlock the luggage compartment lid man­
ually
c::> page 40.
Check light and battery in the master
key
Fig. 20 Remote master key: Removing the battery
holder
Check light in the master ke y
The check light@c::> fig. 20 in the master key
prov ides informat ion about d ifferent cond i­
tions.
• The check light turns on briefly once when a
button is pressed, and dur ing an "inquiry"
by the convenience key system. •
If the check light does not come on, the bat ­
tery is dead and has to be replaced. In addi­
tion, when the battery is dead the
!I indi ­
cator light appears in the instrument cluster
display as well as the message
Pl ease
chang e th e ke y b attery .
Ma ster key batter y replacement
• Remove the mechanica l key c::> page 32.
• Press the release button@¢ fig. 20 on the
battery holder and at the same time pull the
battery holder out of the master key in the
direction of the arrow .
.. Install the new battery CR 2032 with the
"+" sign facing down.
.. Push the battery holder carefu lly into the
maste r key.
• Insta ll the mechanical key .
@ For the sake of the environment
Dis p ose of dead batteries prope rly so as
not to poll ute the environment.
{D Tips
The replacement battery mus t be the
same specification as the o rigina l.
Electronic immobilizer
The immobilizer helps to prevent unauthor­
ized use of your vehicle .
A computer chip ins ide your key automatically
deact ivates the elect ron ic immobilizer when
the key is ins ide the veh icle. When you remove
the key from the vehicle, the elect ron ic immo­
bilizer is au tomatically activa ted once aga in.
& WARNING -
A lways take the key w ith you when you
l eave the vehicle. The key can disarm the
e lectronic engine immobilizer and permit
an una uthorized person to start the engine
and enable operation of the vehicle sys­
tems such as power w indow or power sun-
r oof leading to se rious pe rsonal injury.
~

@ Tips
-The vehi cle cannot be started if an unau­
thorized key is used. The vehicle may not
start if another radio device such as a key
for anot her vehicle or a transponder is
l ocated on the key ring.
- For Declarat ion of Compliance to United
States FCC and Industry Canada regula­
tions ¢
page 293 .
Power locking system
General description
The power l ocking system locks or unlocks all
doors and the luggage compar tment lid si­
multaneously.
You ca n lock and un lock the vehicle cent rally.
You have the following choices:
- Remote maste r key
¢ page 35,
-Door handles with convenience key *
<=>page 35,
-Lock cylinder at the dr iver 's door
¢ page 36, or
- Power locking switc h inside ¢
page 36.
Selective unlocking
When you loc k the vehicle, the powe r locking
system wi ll lock the doors and the l uggage
compa rtment lid. When unlocking, you can
set in the MMI whet her only the driver 's door
or the entire vehicle s houl d be unlocked
¢ page 34.
Automatic locking
The automatic loc kin g feat ure locks all t he ve ­
h icle doors and the luggage compartment lid
when you drive faster than 9 mph (15 km/h) .
The car is un locke d again , when the opening
f u nction in the power locking system sw itch
or at one of the door leve rs is actuated. The
Auto Lock function can be turned on and off in
.... N the MMI ¢ page 34. .... N
0 J:
'SI: .... \!) ..,.,
.... ..,., ....
Opening and clo sin g 33
Anti-theft alarm warning system
If the an ti-t heft ala rm warning sys tem de­
tects a b reak -in in to the vehicle , acous tic and
vis ual war ning signals a re triggere d.
T he anti-theft wa rning sys tem is a ctiv ated au­
t omat ic all y when you lock t he ve hicl e. It is de­
activated when unlocking using the remote key, with the mecha nica l key, an d when yo u
switc h the ignition on.
T he al arm also turns off w hen t he al arm cy cle
has expired .
Turn signals
When you un lock the veh icle, the turn signals
flash twice. When you lock the veh icle once,
the turn sig nals flash once.
If th ey do no t
f lash, one o f th e doors, the luggage com part­
ment lid or the hood is no t locked .
Unintentionally locking yourself out
In the fo llow ing cases there safeg ua rds to
preve nt yo u locki ng you r remo te mas ter key in
t h e ve hicl e:
- The vehicle does not lock w ith the cent ral
loc king switch <=>
page 36 if the drive r's
door is open.
- On veh ides with convenience key*, if the
most recently used master key is in the lug­
gage com pa rtment, the l uggage compa rt­
ment lid is a utomat ic al ly unlocked again af­
t er it is closed .
Do not lock your veh icle w ith the
r e mote mas ­
ter key or convenienc e key * unti l all doors
and t he luggage com partment lid are closed.
In this way you avoid locking yo urse lf o ut acci ­
dentally .
Power side door closer*
The veh icle doo rs a re equipped w it h a powe r
s ide door closer . W hen clo sing a doo r, you on­
l y h ave to le t it fall light ly in to the la tc h . The
doo r will then automatically close by itself
¢ & . ~

34 Openin g and clo sing
A WARNING
- When you lock your ve hicle from outside,
nobody -especially children -should re­
ma in ins ide th e veh icl e. Rememb er,
when you lock the ve hicle from the out ­
side the windows cannot be opened from
the inside .
- When you leave the vehicle, always take
the ignition key with you. This will pre­
vent passengers (ch ildren, for example)
from accidentally being locked in the ve ­
hicle should they accidentally press the
power locking switch in the doors.
- Do not leave children inside the vehicle
unsupervised . In an emergency it would
be impossible to open the doors from
the outside w ithout the key.
- Applies to vehicles with power side door
closer*:
- When closing a door, make sure noth­
ing can interfere w ith the doo r. T his
could cause ser ious personal in jury.
- You can stop the door from clos ing at
any time by pulling on the inside or
outside door handle.
@ Tips
- In the event of a crash with airbag de­
ployment all locked doors will be auto­
matically unlocked to g ive access to t he
vehicle occupants from the outside.
- If the power lock ing system should ma l­
funct ion, you can lock the dr iver's door
u sing the mechanical key
~ page 3 7.
- If the power lock ing system should fail,
you can still open the fue l tank flap in an
emergency<=>
page 224 .
-You are we ll advised no t to keep valua­
bles insi de an unattended vehicle, visib le
or not. Even a properly locked vehicle
cannot provide the sec urity of a safe.
- If the L ED in the upper edge of the d riv­
er's door panel comes on fo r abo ut 30
seconds afte r the vehicle is locked, there
i s a ma lfunction in the power locking or
the anti-theft warning system. Have the malfunction corrected by an author ized Audi dealership or qualified repair facili­
ty
.
Setting power locking
The driver can determine the functions for
power locking in the MMI.
.,. Select: I CAR I function button > Car sy ste m s
contro l bu tton > Vehicle setting s > (Central
locking ).
Lock wh en driving -
If you sele ct On, the vehi­
cle locks automa tica lly when driv ing. A ll of
the doors and luggage compartment lid lock.
Central locking
Unlock door s -
You can dec ide if All doo rs or
o n ly the
Driver shou ld unloc k. The l uggage
compartment lid a lso un locks when
All is se­
l ected. If you sele ct
Driv er in a ve hicle w it h a
convenience key* , on ly the door whose handle
you pull will un lock.
If you se lect Driver , all t he doors and luggage
compartment lid will un loc k if you press the@
button on the remote con trol master key
twice.
L ock exterior trunk handle -If you select On ,
the luggage compar tment lid handle is
locked. In this case the luggage compar tment
lid can be opened with the button
e:5 on the
master key or with the
e:5 b utton * in the driv ­
er's door. In ve hicles w ith a convenience key*,
you can st ill open the luggage compartment
lid using the handle if an authorized master
key is near the proxim ity sensor .
Fold mirrors* -If you select On, the exterior
rearview mirrors fold in automatically when
you press the
ffJ button o n the remote control
master key or touch the sensor * in the handle.
Tone when locking -When you select On, a
confirmat ion tone sounds when you lock the
vehicle .

.... N .... N
0 J:
""'. .... I.O
"' ....
"' ....
Locking and unlocking the vehicle with
the remote control
F ig. 2 1 Remo te control: function buttons
Either the dr iver's door only or the entire veh i­
cle will unlock when the unlock button
en is
p ressed once, depending on the settings in
the MMI
r::}page 34.
.. Press button @ to unlock the veh icle
¢ fig . 21 .
.. Press b utton @to lock the vehicle ¢.&. in
General description on page 34 .
.. Press b utton C::5 briefly to unlock the lug­
gage compartment lid .
.. Push the red
I PANIC I button to activate the
panic function. The horn sounds and the
turn signals flash. Push the red
I PANIC ! but­
ton again to deactivate the panic function.
If the vehicle is unlocked and no door, the lug­
gage compartment lid or the hood is opened
within 60 seconds, the vehicle locks itself
again automatically. This feature prevents the
vehicle from be ing acc identally left unlocked
over a long period of t ime.
It depends on the settings in the MMI wheth­
er the entire veh icle is unlocked or only cer­
tain doors
c:> page 34 .
A WARNING
Read and follow all WARNINGS¢.&. in
General description on page 34.
@ Tips
- In order to make sure the locking func­
tion is working, you s hou ld always keep
your eye on the vehicle to make sure it is
properly locked.
Op enin g an d clos ing 35
-Do not use the remote cont rol if you are
inside the car, otherwise you may unin ­
tentionally lock the vehicle, and then you
would set
off the anti-theft alarm when
you try to start the engine or open a door . In case this happens anyhow, push
the unlock button
en.
- The veh icle can only be locked when the
selector lever is in the P position .
- Use the panic function only if you are in
an eme rgency situation .
Locking and unlocking with convenience
key
Applies to vehicles: wit h convenience key
The doors and the luggage compartment lid
can be unlocked and locked without operat­
ing the master key.
Fi g. 22 Co nvenience key: Lock ing the vehicle
Unlocking veh icle
.. Take ho ld of the door handle. The door is un-
locked automatically .
.. Pull the hand le to open the door.
L o cking vehicle
.. Select the P selec tor lever posit ion. Other­
w ise the vehicle cannot be locked .
.. To lock the vehicle, close the door and touch
the sensor in the door handle
on ce c:> fig . 22 .
Do not reach inside the door handle .
T he vehicle can be locked and un locked at any
doo r. The master key must be within a range
of about 1.5 m from the appropriate door or
the luggage compartment lid . It makes no dif­
ference whether the master key is in your jack-
et pocket or in your brief case . ..,.

36 Opening and clo sing
It is not possible to re-open the door for a
brief period direct ly after closing it. This al­
l ows you to ensure that the doors are properly
locked.
I t depends on the se ttings in the MMI wheth­
er the entire vehicle is unlocked or one of the
doors ¢
page 34.
A WARNING
Read and follow a ll WARNINGS c:> & in
General description on page 34.
(D Tips -
If you
r vehicle has been stand ing fo r an ex­
tended period, please note the fo ll ow ing:
- The proximity sensors are deactivated af-
te r a few days to save powe r. Yo u then
have to pull on the door handle once to
unlock the ve hicle and a second time to
open the veh icle.
- To prevent the battery from draining and to preserve your vehicle's ability to start
fo r as long as possib le, the energy man­
age men t sys tem grad ual ly sw itches off
u nn ece ssary conven ience f unct io ns.
It is
p ossi ble tha t you w ill not be able to un­
l ock your ve hicl e using these conven­
i en ce f unct io ns.
- Fo r De clarat ion of Com pliance to Uni ted
St ates FCC an d Indus try C anada regu la­
tions¢
page 293.
Operating locks with the key
In the event of a failure of the power locking
system, the driver's door con be locked and
unlocked at the lock cylinder.
F ig . 2 3 Key tu rns for ope ning and clos ing .
.,. Remove the mechan ica l key i=;, page 32.
.,. Tur n the key to the left to unlock the driver's
door .
.,. Turn the key to the right to lock the driver's
door c:>.&, .
A WARNING
Read and follow all WARNI NGS Q & in
General description on page 34 .
Locking and unlocking the vehicle from
inside
Fig. 24 Dr ive r's door: power lock ing sw it ch
Fig . 25 Rear power lock ing sw itc h
.,. Press the button@ to lock the vehicle c:> .&, .
"' Press the button
63 to unlock the vehicle
Q fig . 24, Q fig . 25 .
If you lock the vehicle using the power locking
switch, p lease note the following:
- You cannot open t he doors or the luggage
compartment lid from the
outside (in­
creased secur ity, for example when you are
stopped at a red light) .
- The diodes in the powe r locking switches il­
luminate when all the doors are closed and
locked .
~

.... N .... N
0 J:
"". .... I.O
"' ....
"' ....
-Front doors: you can un lock and open the
doors from the inside by pulling on the door
handle.
- Rear doors: pu ll the door handle
once to re­
lease the lock. Pull the hand le
again to open
the doo r.
- If you have a crash and the airbag is activat­
e d, the doors automatically unlock .
,&. WARNING
- The power locking switch works with the
ignition off and automatically locks the
entire vehicle whe n it is actuated .
- On a vehicle locked from the outside the
power locking system switch is inopera­
tive.
- Locked doors make it more difficult for
emergency workers to get into the vehi­
cle, which puts lives at risk . Do not leave
anyone behi nd in the veh icle, especially
children.
@ Tips
Your vehicle is locked automatically at a speed of 9 mph (15 km/h)
~ page 33. You
can unlock the vehicle again using the
open ing function in the power locking sys­
tem switch .
Emergency locking
Each door must be locked separately if the
power locking system fails.
Fig. 26 Doo r: Emer gen cy lock ing
An emergency lock is located on the front end
of the passenger 's door and the rear doors
(on ly visible when door is open) .
"' Remove the mechanical key~
page 32.
Opening and closing 3 7
... Pull the cover cap out of the opening
~ fig. 26.
... Insert the key in the inside slot and turn it
all the way to the right (right door) or left
(left door) .
Once the door has been closed, it can no lon­
ger be opened from the outside. The door can
be opened from the inside by pulling the door
handle .
If the child safety lock in a rear door is
activated, you must first pull the door handle
on the inside . Then you can open the door
from the outside.
Luggage compartment
Lid
Opening/closing the luggage
compartment lid
Fig. 27 Driver 's doo r: remote luggage comp art m en t lid
re lea se
t'FID
A U Li ...
Fig. 28 Pos it ion of lock and handle in the l uggage com ­
part men t lid
Opening the luggage compartment lid
... Press the c::s button on the remote control
master key briefly. The luggage compart­
ment lid will unlock .
... To open the luggage compartment lid, press
and hold the
c::s button on the remote con-
trol master key for at least one second . Or
IJJ,,

38 Openin g and clo sing
• Pull the button cs in the driver's door
¢
fig. 2 7 brief ly . Or
• Press the handle in the luggage compart­
ment lid ¢
fig. 28.
Clos ing th e lug gag e co mpartm en t lid
• Pull the luggage compartment lid down and
allow it to drop gently. The lid is then closed
automatically¢
A .
The settings in the MM I determ ine if the lug­
gage compartment lid can be opened using
the handle¢
page 34 .
A WARNING
-After closing the luggage compartment
lid, a lways pull up on it to make sure that
it is properly closed. Otherwise it could
open suddenly when the veh icle is mov­
ing.
- To help prevent po isonous exhaust gas
from being drawn into the vehicle, al­
ways keep the luggage compartment lid closed while driving. Never transpo rt ob­
jects larger than those which fit com­
ple tely i nto the luggage area, because
then the luggage compartment lid can­
not be fully closed.
- Never leave your vehicle unattended es ­
pecially with the luggage compartment
lid left open. A child cou ld crawl into the
car thro ugh the luggage compartment
and pull the lid shut, becoming trapped
and unable to get out. To reduce the risk
of personal injury, never let ch ild ren play
in or around your vehicle. Always keep
the luggage compartment lid as we ll as
the vehicle doors closed when not in use.
(D Tips
When the veh icle is locked, the luggage
compartment lid can be unlocked sepa­
rately by pressing the button
cs on the
maste r key. When the luggage compart­
men t lid is clo sed ag ain, i t locks automati­
cally.
Power opening/closing luggage
compartment lid
Applies to vehicles: with power opening/closing luggage
compartment lid
The luggage compartment lid can open and
close electrically .
Fig. 29 Clos ing button in the luggage co mpartment lid
Fig. 30 Closing and lock ing button in the luggage com·
partment lid (vehicles w ith convenience key•)
O pening th e luggage compartment lid
• Press and hold the button cs on the remote
contro l master key for at least one second.
Or
• Pull the button
cs in the driver's door
¢ page 37, fig. 28 briefly. Or
• Press the handle in the luggage compart­
ment lid
¢page 37, fig. 28.
Closing the lugg age compa rtment lid
.,. Pull and hold the button cs in the driver's
door until the luggage compartment lid is
closed ¢.&_ . Or
• Press the b utton
e:5 in the luggage com­
pa rtment lid¢
fig. 29. The luggage com­
pa rtment lid moves to the closed pos ition
by i tself and soft close lo cks it automatically
¢ A . Or .,..