2018 AUDI A8 warning light

Cockpit overv ie w
lig ht also turns on. Make sure t hat the speed
does not go above the speed displayed. Drive to
an author ized Audi dealer or authorized A udi
Serv ice Facility immediately to have the malfunc­
tion corrected .
--... Engine oil sensor
• Oil l evel! Sen sor d efe ctiv e
The sensor to check the engine oil leve l has
fa iled. Drive to an authori zed Aud i dea ler or au­
thor ized Audi Service Facility immed iate ly to have
the ma lfunction corrected .
f Engine warm-up request
0 Plea se warm up engine
Fue l has entered the eng ine oil, either from low
outside temperatures or frequent short drives .
Dr ive unt il the engine is warm so that the fuel in
the eng ine oi l will evaporate . Avo id h igh eng ine
speeds, fu ll acce le rating and heavy eng ine loads
when doing this.
jjl Tank system
Ill Plea se refuel
If t he i nd icator lig ht t urns on fo r the fi rst time
a nd the mess age appears, there a re abo ut 4 ga l­
lons (15 lite rs) of fue l le ft in the tank.
D Fuel tank s ystem malfunction! Plea se con­
tact dealer
There is a malfunction in the fue l tank system .
Drive to an a uthorized Audi dea ler or a uth orized
Aud i Serv ice Facility immediately to have the
malfunct ion corrected.
(D Tips
For more information on fueling, see
¢page 269 .
~ Washer fluid level
C Please refill washer flu id
24
Fill the washer fluid for the windshie ld washer
system and the head light washer system when
t h e ignit ion is switched
off ¢ page 281 .
• Windshield wipers
m Windshield wiper defective
There is a ma lfunction with the winds hield wip ­
ers .
D rive to an au thor ized A udi dealer or au tho riz ed
Audi Se rvice Facility immediate ly to have the
malfunction corrected.
~ /0~ Bulb failure indicator
If the S:$ ind icator light turns on, a bulb has
failed . The message indicates the location of the
bulb.
If the
II indicator light also t urns on, then a rear
fog light has failed. The position of the indicator
li ght corresponds with the location on the vehi­
cle.
Vehicle light s: Malfunction
There is a m alfu nction in the headlights o r the
li gh t sw itch .
D rive to an author ized Audi dealer or autho rized
Audi Se rvice Fac il ity immed iate ly to have the
malfunction cor rec ted .
_& WARNING
-Light bulbs are under pressure and can ex ­
p lode when b ulbs a re rep laced, w hic h in­
creases the ris k of in jury.
- With H ID headlig hts* (xenon -plus head ­
lights), the high-vo ltage component must
be handled correct ly . Otherwise, there is a
risk o f fatal in jury.
§.0 Headlight range control system
El He adlight range cont rol system: System
fault
There is a ma lfunction in the headlight range
contro l system, which may cause glare for other
drivers.
-

u. co .... N
" N .... 0 0 :c ' Drive to an authorized Audi dea ler or a uth orized
Audi Service Facility immediately to have t he
mal funct ion corrected.
~ D Light/rain sensor
El Automatic headl ights / automatic wipe rs:
System fault
The light/rain sensor is malfunctioning.
The low beams remain swi tched on at all times
for safety reasons when the light switch is in the
AU TO position. You can continue to turn the
lights on and
off using the light switch . You can
still control all functions that are independent of
the ra in sensor through the w indshie ld w iper lev­
er .
Drive to an aut horized Audi dea ler or a uth orized
Aud i Service Facility immediately to have the
malfunct ion corrected.
!-: Sport differential
Applies to: vehicles with sport differential
(I Sport differential : Sy stem fault
T here is a malfunction with the sport differentia l.
Dri ve to an authorized Aud i dea le r o r a uth orized
Audi Service Facility immediately to have t he
malfunction corrected.
I'll Sport differential : Ov erh eating
The transm iss ion temperature has increased s ig­
ni ficantly due to the sporty driving manne r. D rive
in a less sporty manner until the temperature re­
turns to the normal range and the ind icator ligh t
sw itches of .
A WARNING
Contact an author ized A udi dealer or au tho r­
ized Aud i Serv ice Facility if the sport diffe ren ­
tial is fau lty or mal functioning. The repair
must be performed by tra ined personne l us­
ing the correct oi l in order to ens ure safety .
Cockpit o ver view
¢¢Turn signals
If the B or 1B in d icator light blinks , the tur n
s ignals a re act ivated. If bot h ind icator lights are
blinking, the emergency flashers are activa ted.
If an ind icator light blinks tw ice as fast as usual,
a turn signal b ulb has fai led. Carefully d rive to an
a utho riz ed Aud i dea le r or autho rized Aud i Serv ice
F ac ility immed iate ly to have the ma lfunction co r­
rected . The indicator light does not indicate a
malfunction if a turn signal on the trailer o r on
the vehicle fa ils in trailer towing mode.
(D Tips
F o r more information on the turn signa ls, re ­
fer
to~ page 44.
On-Board Diagnostic
System (OBD)
Malfunction Indicator Lamp (MIL)
The Ma lfunction Indicato r Lamp ( MIL) ¢..ijj in the
instrument cluster is part of the On -Board Diag ­
nostic (OBD II) system .
T he warning/indicator lig ht ill uminates w hen the
ignition is switched on and goes out after the en ­
gine starts and the id le has stabilized . This indi ­
cates that the MIL is wor king properly.
If the light doe s not go out after the eng ine is
started, or i lluminates while you are driving, a
malfunction may exist in t he engine system. If
the light ill uminates, the catalytic converter
could be damaged.
Continue driving
w ith reduced powe r (avoiding
s u stained high speeds and/or rapid accelera ­
tions) and have the condit ion corrected. Contact
your authori zed Aud i dea ler .
If the light i lluminates, the electronic speed lim ­
iter may also be malf unctioning. For more infor ­
mation
c> page 26, Electronic speed limiter .
An improperly closed fue l filler cap may also
ca use the M IL light to ill uminate
c> page 2 70.
25

Cockpit overv ie w
On -Board Diagnostics
F ig. 19 Loc ation of D ata Link Connec tor (DLC)
On-Board Diagnostics moni tors the components
of your emission control system . Each monitored
component in your eng ine system has bee n as­
signed a code . In case of a ma lfunction, the com­
ponent w ill be identified and the fa ult stored as a
code in t he control module memo ry.
The MI L light may also illuminate if there is a
leak in the on-board fuel vapor recovery system .
I f t he lig ht ill uminates af ter a ref uel ing, stop the
ve hicle and ma ke sure the fue l filler cap is p rop ­
erly closed
c> page 2 70 .
In order to make an accurate d iagnosis, the stor­
ed data can on ly be disp layed using specia l diag­
nos tic eq uipment (gene ric sc an tool for OBD).
In order to connect t he specia l diagnostic equip­
ment , push the plug into the Data Link Connector
(D LC). The D LC is located to the rig ht of t he hood
release
c> fig. 19.
Your author ized Audi dealer or a qualified service
s tat ion can interpret the code and perform the
necessa ry repa ir.
A WARNING
Do not use t he di agno stic con nector for pe r­
sonal use . Incorrect usag e c an cause ma lfu nc­
tions, which can increase the ris k of a colli­
sion !
Electronic speed limiter
-
Your veh icle may be factory equipped with ti res
that are rated for a maxim um speed of 130 mph
(210 km/h) . This is less than the maximum speed
of your vehicle . To reduce t he risk of sudden tire
26
failure and loss of contro l if the vehicle is operat ­
ed at excessive speeds, your vehicle also has an
e lectronic speed limite r. The elect ronic speed
li miter prevents your ve hicle from go ing faster
th an the tire speed rat ing . For more information
c> page 290 .
If the engine cont rol un it rece ives fa ulty vehicle
speed s ignals, the Ma lf u nction Indicator Lamp
( M IL)
¢..ift will illuminate. If this occurs, contact
the nea rest authorized Aud i dea ler for ass is ­
tance .
58
Your vehicle's top speed is electronically lim ited
to 155 mph (250 km/h).
If the engine control unit receives fa ulty vehicle
speed signals, the Ma lf u nction Indicato r Lamp
(MIL)
¢..ift w ill illuminate. If this occurs, contact
the nea rest authori zed Audi dea ler for ass is­
tance.
A WARNING
A lways obse rve t he posted speed limits and
adjust yo ur speed to sui t prevailing road, tra f­
fic and weather condit ions. Never d rive your
ve hicl e faster t han the ma ximu m speed rating
of the t i res inst alled .
-

Opening and clo sin g
@ Tips
- Do not leave valuables unattended in t he ve­
hicle . A locked vehicle is not a safe!
- The LED in the driver 's door rail blinks when
you lock the vehicle . If the LED lights up for
approximately 30 seconds after locking,
there is a ma lfunction in the central locking
system. Have the problem corrected by an
authorized Audi dealer or authorized Audi
Service Fac ility.
Key set
F ig. 20 You r veh icle key set
@ Remote control ke y with integr ated
mechanica l key
You can unlock and lock your vehicle w ith the re ­
mote control key . A mechanical key is integrated
in the remote control key
Q page 29 .
@ Separate mechanical ke y
This key is not intended for constant use. It
should only be used in an emergency . Do not car­
ry it on your key ring and do not store it in the ve­
h icle.
Rep lacing a ke y
If a key is lost, see an authorized Audi dealer or
authorized Audi Service Facility. Have this key de­
activated . It is important to bring all keys with
you .
If a key is lost, you should report it to your
insurance company .
Number of keys
You can check the number of keys ass igned to
your veh icle in the Infotainment system. Select:
the
I CAR I function button > Car sy st e m s control
button
> Ser vice & cont rol > Pr ogrammed ke ys.
28
This way, you can make sure that you have all the
keys when purchasing a used vehicle.
Electronic immobilizer
The immobilizer p revents unauthorized use of
the ve hicle.
Under certain circumstances, the vehicle may not
be able to start if there is a key from a d ifferent
vehicle manufacturer on the key chain .
Data in the master ke y
When driving, service and maintenance-relevant
data is cont inuous ly stored in your remote con ­
trol key . Your A udi se rvice advisor can read out
th is data and tell you abo ut the work yo ur vehicle
needs . T his applies also to veh icles w ith a con­
venience key *.
Personal convenience sett ings
If two people use one vehicle, it is recommended
that each person always uses their own remote contro l key. When the ignit io n is tu rned off or
whe n the vehicle is lo cked, pe rsonal convenience
settings for the following systems a re stored and
ass igned to the remote master key .
- Climate cont rol system
- Central lock ing system
- Window and rear shade*
- Interior lighting*
- Memory function
- Park ing aid*
- Adaptive cr uise control *
- Ac tive lane assist*
- Side ass ist*
- Dr ive select
- Night vision assist*
- Steeri ng wheel heating*
The stored settings are automat ica lly recalled
when you unlock the vehi cle, open the doors or
turn on the ignition.
A WARNING
A lways take the vehicle key with you when
leaving the vehicle, even for a short period of
time. This applies particularly when child ren
rema in in the vehicle . Otherwise the children
-

lL t:0 ....
"' ......
"' .... 0 0 :c ' The settings in the Infotainment system deter­mine if the entire vehicle or only one of the doors
is unlocked when unlocking the vehicle
c:> page 32.
_&. WARNING
Read and heed all WARNINGS c:> .& in Descrip­
tion on page 2 7.
@ Tips
If your vehicle is left standing for a long peri­
od of time, note the following:
-The proximity sensor switches off after a
few days to save energy. You then have to
pull once on the door handle to unlock the
vehicle and a second t ime to open it.
-The energy management system gradually
turns off unnecessary convenience functions
to prevent the vehicle battery from draining
and to mainta in the vehicle's ab ility to start
fo r as long as possib le. You may not be able
to unlock your vehicle us ing the convenience
key.
- Fo r an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada reg ulations, see
c:> page 339 .
Central locking switch
Fig. 25 Dr iver 's door: centra l lock ing sw itc h
Op eni ng and clos ing
Fig. 26 Rear doors: central lock ing switch
"To lock the vehicle, press the ffi button c:> fig . 25
or c:> fig. 26, c:> &_ .
.. To unlock the vehicle, press the crl button .
When locking the veh icle with the central lock ing
switch, the following app lies:
-Opening the door and the luggage compart­
ment lid from the
outside is not poss ible (for
secur ity reaso ns, such as when stopped at a
light).
- The LED in the central locking sw itch turns on
when all doors are closed and locked.
- Front doors: you can open the doors individual­ ly from the inside by pulling the door handle .
- Rear doors: to unlock the doors, pull on the
door ha ndle
one time . To open the doors, pull
on the door handle
again .
- In the event of a crash with a irbag deployment,
the doors unlock a utomat ically to allow access
to the vehicle.
_&. WARNING
- The central locking switch a lso works when
the ign ition is switched off and automatica l­
ly locks the entire vehicle when the
ffi but ­
ton is pressed.
- The cent ral locking switch is inope ra tive
when the vehicle is locked from the outside.
- Locked doors ma ke it more diffic ult for
emergency workers to get into the vehicle,
which puts lives at r isk. Do not leave anyone
behind in the vehicle, especially c hildren .
(D Tips
Your vehicle locks automatically when it
reaches a speed of 9 mph (15 km/h) (Auto
Lock)
c:> page 27 . You can unlock the vehicle
31

lL t:0 ....
"" ......
"" .... 0 0 :c ' driver's door@¢ fig. 35. The indicator light in
the button turns on/blinks.
.,. To activate/deactivate the child safety lock on
both sides, you must press
the [±] buttons one
after the other.
Vehicles with ~ button
.,. To deactivate/activate the power window
switch in the rear doors, press the [@button in
the driver's
door @ c;, fig. 35. The indicator
light in the button turns on/blinks .
.,. To also deactivate/activate the inner door han­
dle, open the respective rear door and turn the
key switch w ith the mechanical key in the direc­
t ion of the arrow or opposite the d irection of
the arrow
¢fig. 36.
The follow ing funct ions are also turned off when
the child safety lock is act ivated :
- The buttons for the sunshade* in the rear win­
dow .
- The buttons for the power sunshades* in the
side windows.
- The button for the front passenger seat ad just­
ment* (for vehicles with
the[±] button when the
child safety lock is activated for the rear door
on the passenger's side).
.&_ WARNING
Always take the veh icle key with you when
leaving the vehicle, even for a short period of
time. This applies particularly when children
remain in the vehicle. Otherwise children
could start the engine or operate electrical
equipment (such as power windows), which
increases the risk of an accident.
-
Opening and closing
Power window
Controls
The driver can control all power windows.
Fig. 37 Section of driver 's doo r: controls
All power window switches are equipped with a
two -stage function:
Opening and closing the windows
CD N M 0
::> CD m
.,. To open or close the window completely, press
the switch down or pull the switch up brief ly to
the second level. The ope rat ion will stop if the
sw itch is pressed/pulled again.
.,. To select a position in between opened and
closed, press/p ull the switch to the first level
until the des ired window position is reached .
Power window switches
CD Left front door
@ Right front door
® Left rear door
@ Right rear door
.&_ WARNING ~
-Always take the vehicle key with you when
leaving the vehicle, even for a short period
of time. This applies particularly when chil­
dren remain in the vehicle. Otherwise the
children could start the engine or operate
electrical equipment such as power win­
dows, which increases the risk of injury. The
power windows continue to function until
the driver's door or front passenger's door
has been opened.
- Pay careful attention when closing the win­
dows. Pinching could cause serious inj uries .
37

lL t:0 ....
"' ......
"' .... 0 0 :c ' The following buttons are deactivated when the
va let parking function is switched on :
-1""'1 button in the driver's door
-I ""' I button on the remote control key
- Handle in the rear lid
When the valet parking function is switched on,
the message
Valet parking activated appears in
the instrument cluster display when you switch
the ignition on.
Garage door opener (Homelink)
Description
Ap plies to: vehicl es with garage door opener (Homeli nk)
Fig. 42 Garage door opene r: examples o f usage for differ­
ent systems
W ith the garage door opener (Homel ink), you
can activate systems such as the garage doors,
security systems or house lights from ins ide your
vehicle. Three buttons are integrated in the head­
liner that can be programmed to up to three re­
mote controls.
To be able to operate systems using the garage
door opener, the buttons in the headliner must
first be programmed .
A WARNING
When operating or programming the garage
door opener, make sure that no people or ob­
jects are in the area immediately surrounding
the equipment. People can be injured or prop­ erty can be damaged if struck when closing.
Opening and closing
(D Tips
-For security reasons, we recommend that
you clear the programmed buttons before selling the vehicle.
- For add itiona l information about Homelink,
visit www.homelink.com.
- For an explanation on conformity with the
FCC regulations in the United States and the
Industry Canada regulations, see
¢page 339.
Programming buttons
App lies to: vehicles with garage door opener (Home link)
Fig. 43 Headliner: controls
You can program both fixed code and rolling code
systems using this procedure.
Programming/reprogramming buttons
.. Switch the ignit ion on.
.. Press and hold the button in the headliner that
you would like to program for at least 10 sec­
onds. Or
.. Select: ! CAR ! function button> Car systems
control button > Vehicle settings > Garage
door opener > Program garage door opener.
.. Follow the instr uctions in the Infotainment sys-
tem.
Deleting button programming
The programmed buttons cannot be deleted indi­
vidually. They must be deleted all at once. Repro­
gram the buttons if necessary .
.. Select: the ICAR !function button> Car systems
control button > Vehicle settings > Garage
door opener > Clear program settings
> Yes.
41

lL t:0 .-,
"' ......
"' .-, 0 0 :c " Lights and Vision
Exterior Lighting
Switching the headlights on and off
F ig . 44 Instrument panel: l ig ht switc h w ith all -weather
l ig hts
The headlights only wo rk when the ignition is
switched on. While sta rting the engine or when
switch ing off the ign ition, the headlights will go
off and only the side marker lig hts will be on .
I f the sys tem is not operating p roperly, a w arning
symbol in the dr ive r informa tion d isplay is dis­
p layed .::>
page 24.
Light switch --r;_-
T u rn the switch .::> fig. 44 to the co rresponding
position . When the lights are switched on, the
:o o:
sym bol turn s on .
0 - The lights a re off or the daytime runni ng
lights are on :
-USA models: The daytime running lig hts will
come on automatically when the ignition is on
and the light sw itch .::>
fig. 44 is in the O posi­
t ion or the
AUTO position (only i n day light con­
di tions). The
Daytime running lights function
c an be turned o n and off i n the MM I
¢ page 45, i=> &..
-Canada model s: The dayt ime runn ing lights
will come on au toma tic ally when the igni tion is
on and the light swi tch .::>
fig. 44 is in the O po ­
s ition, the
:oo: pos ition or the AUTO position
(o nly in daylig ht
conditions) .::>&. .
AUTO -Automat ic head lig hts sw itch on and off
depend ing on br ightness, for example in tw ilight,
d uring rain or in
tunne ls ¢ &. .
Lights and V ision
:oo: -Side marker ligh ts
io -Low beam head lights
~ -All-weather lig hts
lw -Rear fog lights*. When the rear fog lights are
on, the symbol
0$ on the sw itch will i lluminate.
All-weather lights
The front lights are adjus ted au toma tica lly so
that you are less likely to see g lare from your ow n
head lig hts, for example when driving on a wet
road.
Automatic dynamic headlight range control*
Yo ur vehicle is equ ipped with a headlight r ange
contro l system so tha t the head lig hts do not
blind oncoming t raffic if the vehicle load
changes . T he hea dlight range also adj usts auto­
matically when brak ing and acce lerating .
Light functions
The following light funct io ns are available de ­
pending on veh icle equipment and o nly fu nction
whe n the light switc h is in t he AUTO position.
You can deactivate these functions in the MMI
under
Audi adaptive light ¢ page 45.
Static cornering light* -the corne ring light
switches on automatically when the steering
wheel is turned at a certai n angle at s peeds up to
approximately 44 mph (70 km/h) and when the
turn s ignal is activated at speeds up to approxi­
mately 25 mp h (40 km/h) . The area to t he side of
t h e ve hicle is illuminated better w hen turning.
Dynamic curve light * -the curve light adapts it­
self to the curves in the road .
Highway l ight function* -this function adapts
t h e lig hting for highway driving based on vehicle
speed .
A WARNING ~ --Automatic headlights are only intended to
assist the driver. They do no t relieve the
driver of his responsib ility to check the
headligh ts and to turn them on manually
ac co rding to t he cur rent light a nd vis ib ili ty
conditions . Fo r example, fog cannot be
43