2018 AUDI A8 warning light

Table of contents
About this Owner's Manual. . . . . .
6
Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Cockpit overview . . . . . . . . . . . . . . . . . 7
Controls at a glance . . . . . . . . . . . . . . . . . . 7
Instrument cluster . . . . . . . . . . . . . . . . . . . 9
M ultif unction steering wheel . . . . . . . . . . 11
Driver information system . . . . . . . . . . . . . 12
T ime and date display . . . . . . . . . . . . . . . . 16
H ead-up display . . . . . . . . . . . . . . . . . . . . . 16
Indicato r lights . . . . . . . . . . . . . . . . . . . . . 17
O n-B oard Diagnost ic System (OB D) . . . . . 25
Starting and driving . . . . . . . . . . . . . 27
Opening and closing . . . . . . . . . . . . . 27
Cent ral lock ing . . . . . . . . . . . . . . . . . . . . . . 27
L ugg age com pa rt ment lid . . . . . . . . . . . . . 33
Ch ild safety lock . . . . . . . . . . . . . . . . . . . . . 36
P ower window . . . . . . . . . . . . . . . . . . . . . . 37
Sunroof. . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Panorama glass roof . . . . . . . . . . . . . . . . . 39
Valet par king function . . . . . . . . . . . . . . . . 40
Garage doo r opener (Home Link) . . . . . . . . 41
Lights and Vision . . . . . . . . . . . . . . . . . 43
Exterior lighting . . . . . . . . . . . . . . . . . . . . . 43
Interior lighti ng . . . . . . . . . . . . . . . . . . . . . 46
V1s1on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
W indshield w ipe rs . . . . . . . . . . . . . . . . . . . 50
D ig ita l compass . . . . . . . . . . . . . . . . . . . . . 52
Seats and storage . . . . . . . . . . . . . . . . 54
Gene ral information . . . . . . . . . . . . . . . . . 54
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . . 54
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . 5 6
Head restraints . . . . . . . . . . . . . . . . . . . . . 58
M emory function . . . . . . . . . . . . . . . . . . . . S9
12 volt sockets . . . . . . . . . . . . . . . . . . . . . . 61
llSvoltsocket . ............. .... .. . 61
Fu ll-length center console. . . . . . . . . . . . . 62
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
L uggage compartment . . . . . . . . . . . . . . . 65
P ass-throug h w it h ski bag . . . . . . . . . . . . . 66
R efrige rato r . . . . . . . . . . . . . . . . . . . . . . . . 67
Warm and cold . . . . . . . . . . . . . . . . . . . 69
D eluxe a utomat ic cli ma te contro l . . . . . . . 69
2
Driving ... .. .. .... .. ... .. ..... ... . .
Genera l information . .... .. ..... ... . .
Steering . ... .. .... .. ... .. ..... ... . .
Start ing and stopping the eng ine ..... . .
Start/Stop system .. .. ............. . .
E lectromechanical parking brake ...... .
Start ing to drive .. .. .. .............. .
A utomat ic transmission
Trailer towing ... .. .............. .
D rivi ng with a tra ile r .. .............. .
T ra ile r towing information .......... . .
Driver assistance .. .............. .
Assistance systems .. .. ..... ... . .
S peed warning system . ............. . .
Cru ise cont rol sys tem . ............. . .
Audi adaptive cruise contro l ...... ... . .
Audi active lane assist (lane departure 73
73
7 5
76
78
81
82
83
89 89
9 1
93
93
93
93
95
assist) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Audi s ide ass ist . . . . . . . . . . . . . . . . . . . . . 105
N ight vision assist w ith pedestrian and
wild animal detection . . . . . . . . . . . . . . . . 109
Audi drive select (drive setti ngs) ........ 111
Parking systems . . . . . . . . . . . . . . . . . 115
General information . . . . . . . . . . . . . . . . . 115
Parking system plus ... ............... 116
Rearv iew camera . . . . . . . . . . . . . . . . . . . . 117
Per iphera l came ras . . . . . . . . . . . . . . . . . . 120
Adjus ting the d isp lay and the wa rn in g
tones. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Error messages . . . . . . . . . . . . . . . . . . . . . 125
T raile r hitch . . . . . . . . . . . . . . . . . . . . . . . . 125
Intelligent Technology . . . . . . . . . . 127
E lectronic Stabi lization Contro l (ESC). ... 127
Brakes .... .. .. .. .. .. ............. .. 129
E lectromechanical steering, dynamic
steering . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
All wheel drive (quattro) . . . . . . . . . . . . . . 131
Energy management . . . . . . . . . . . . . . . . . 131
Notice about data recorded by the Event
Data Recorder and veh icle co ntro l
modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 133

Cockpit overv iew
~ WARNING
The ro ute calcu lated by the navigation system
is a recommendation for reaching your desti­
nation. Obey traffic lights, stopping restric­
tions, one-way streets, lane change restric­
tions, etc.
@ Tips
An asterisk" *" in front of the street name in­
dicates that the information about this street
or this section of the route is not complete in
the navigation data that the MMI contains.
Obey traffic laws in one-way streets and pe­
destr ian zones.
Time and date display
F ig . 16 Center console: analog clock
The date and time a re shown in the instrument
cluster display . There is also an ana log clock in
the center conso le
¢ fig. 16.
When you open the drive r's door, the date and
time appear in the display for 30 seconds . When
the ignition is switched on, the time is a lways dis­
played in the status line © regardless of the cur­
rent d isplay.
You can set the time on both clocks and the date (disp lay) in the Infotainment system
¢page 205.
16
Head-up display
Applies to: vehicles wi th head-up display
Fig. 17 Example: indicators in the head-up display
Fig. 18 In strument panel: knob for the head-up display
The head-up disp lay pro jects certain wa rnings or
selected information from the assist sys tems* or
navig ation* on the windsh ield. The display ap­
pears w ith in the driver's field of vision.
Switching on /off
.,. To switch the head-up display on or off, press
t he
knob~ ¢ fig. 18.
Adjusting the height
The height of the d is play can be adjusted to the
i ndivid ual driver .
.,. Make sure you are seated correctly
¢page 209.
.,. Turn the knob~ to adjust the d isplay.
Setting s in the Infotainment system
.,. Select: the I CARI function button > (Car)* Sy s­
tem s
contro l button > Driver a ssistance >
He ad-up display > Head-up displ ay content s or
Display br ightness . ..,_

Cockpit overv ie w
USA mod els : speed warning sys­
tem
¢ page 93
Ca nad a models: speed warning
system
¢ page93
Adaptive cruise contro l*./
¢ page 97
Air s uspension
¢ page22
Night vision ass ist*
¢ page 109
Night vision ass ist*
¢ page 109
Yello w indic ator light s
18
-------------Elect ronic Stab ilizat ion Control
( E SC)
./
¢ page 22
Electronic Stabilizat ion Control
(ESC)
./
¢ page22
USA models:
Ant i-lock braking system (ABS)./
¢page22
Canada mod els:
Anti -loc k braking system (ABS) ./
¢ page22
USA mod els: safety systems
¢ page23
Ca nad a models: safety systems
¢ page23
Brake pads
¢ page23
Electromechanical parking brake
¢ page20
Tire pressure monitoring system
.I
¢page300
Tire p ress ure mon itor ing system
¢ page 300
Eng ine control (gasol ine engine)
.I
¢ page23
Malfunction Indicator Lamp (MIL)
.I
¢page23
Engine speed limitation
¢ page23
Engine oil leve l
¢page 21
Engine oil sensor
¢page24
Engine wa rm-up request
¢ page24
Battery charge
¢page 21
Tank system
¢page24
Washer flu id leve l
¢page24
Windshield wipers
¢page24
Remote contro l key
¢ page 77
Remote contro l key
¢ page 78
Battery in remote contro l key
¢page29
Bu lb fa ilu re indicator
¢ page24
Rear fog lights
¢page24
Headlight range control system
¢page24
Adaptive light*
¢page44
Light/rain sensor
¢page 25
Active lane assist *
¢page 104
Transm ission
¢ page 87
Transm ission
¢page 87

u. co .... N
" N .... 0 0 :c ' Steering lock
¢ page 21
Eng ine start system
¢ page22
Brake booster
¢page23
Electromechanical power steer­
i ng, dynam ic
steering*../
¢ page 130
Air s uspension
¢ page 22
Sport differe ntia l*
¢ page 25
Other indic ator lights
-------------
Tur n signa ls
¢ page 25
USA mod els:
C ruise control system
¢ page 93
Canada models:
Cruise contro l system
¢ page 93
Adaptive c ruise contro l*
¢ page 97
Adaptive c ruise contro l*
¢ page 97
Adaptive c ruise contro l*
¢page 97
Active lane assist*
¢page 104
Start/Stop system*
¢page 78
Start/Stop system*
¢page 78
High beam assistant
¢page44
High beams
¢ page 44, ¢ page 44
BRAKE/( ©) Brake system
If t his ind icator lig ht tu rns on, the re is a ma lfu nc­
tion in the brake system.
Coc kpit o ver view
llll vehicle and check brake fluid le vel
Stop t he veh icle a nd check t he b rake fl uid level.
See a n author ized A udi dealer or author ized A udi
Se rvice Facility for assistance if necessary.
1111 (USA model s) /. (Canad a mod els)
Brake s: malfunction! Stop v ehicl e safely
If the ABS ind icator light llll) (USA models) /
~ (Canada models), the ESC ind icator light DJ .
and the b rake system indicato r light 1111 (USA
models)/ . (Can ada models) all tu rn o n and
t hi s message appea rs, then the ABS, ESC and
braking d istribution are
ma lfunctioning ¢&. .
Do not continue dr iv ing . See a n author ized Audi
dealer or author ized A udi Se rvice Fac il ity for as­
s istance ¢&. .
1111 (USA model s) /. (C anad a model s) Park­
ing brak e system fault! See owner' s manual
- If the ind icator light and the message appear
when the vehicle is stationary or after switch­
ing the ignition on ,
check if you can release the
pa rk ing bra ke. If you cannot release t he pa rk­
ing b rake , see a n author ized A udi dealer or au­
t hor ized A udi Se rvi ce Fac ility. If you can release
the parking brake and the message sti ll ap ­
pears, see an authorized Audi dealer or author­
ized Aud i Service Faci lity immediately to have
the malfunction corrected.
- If the indicator lig ht and message appear
while
dri ving ,
the hill start ass ist or emergency brak­
ing function may be ma lfunctioning. It may not
be possible to set the parking brake or release
it once it has been set . Do not park your vehicle
on hills . See an authorized Aud i deale r or au­
thor ized A udi Service Fac ility for assistance.
Applies to: USA models
If the 1111 and rlJ turn on at the same time, the
brake pads are worn out
r=;, page 23 .
A WARNING
-Read and follow the warnings in
¢ page 2 72, Working in the engine com­
partment
befo re opening the hoo d and
checking the brake fluid level.
19

Cockpit overv ie w
- If the brake system indicator light does not
t u rn off or it t urns on while driv ing, the
brake fluid level in the reservoir is too low,
and this increases the risk of an acc ident.
Stop the vehicle a nd do not cont inue dr iv­
ing . See an author ized Audi dealer or au­
t h orized Aud i Serv ice Faci lity fo r ass ista nce.
- If the brake system ind icator light turns on
toget he r with the ABS and ESC ind icator
l ights, the ABS/ ESC regulat ing func tion may
be m alfu nctioning. Fu nctions t hat stabilize
the vehi cle are no longer ava ilable . This
cou ld cause the ve hicle to swerve, whic h in ­
creases the risk that t he ve hicle wi ll slide.
Do not continue driving. See an author ized
Audi dealer or author ized Audi Service Fac ili­
ty for assistance .
PARK/(®) Electromechanical parking brake
If the -(USA models) / . (Canada models)
i n dicator light tu rns on , the park ing brake was
set .
-(USA models ) /. (Canada models ) Cau·
tion : Vehicle parked too stee p
lfthe indicator light blinks and the message ap­
pears, the re is not enough brak ing power to se­
cure the vehicle . The brakes have overhea ted. The
ve hicle could roll away even on a small incline .
-(USA models) / . (Canada models) P ress
b rake pedal to release parking b rake
To re lease the parking brake, press the brake
pedal and press
the ~ button at the same time
or start driv ing with hill start ass ist
c> page 82 .
Ill Parking brake!
There is a malfunction in the park ing brake . Dr ive
to a n author ized Audi dealer or author ized A udi
Serv ice Faci lity immediately to have t he malfunc­
tion corrected.
(D Tips
For add it io na l info rmation on the pa rk ing
brake, seer:!)
page 81.
20
_ L Cooling system
• Turn off engine and ch eck coolant l evel
The coolant level is too low .
Do not continue dr iving and switch t he engine
off. Check the coolant level
c> page 2 77 .
- If the coo lant level is too low, add coolant
r:!) page 2 78. Only continue driving once the in­
dicator light turns off.
• Coolant temperature too high! Ple ase let en­
gine run with vehicle stationar y
Let the engine ru n at idle fo r a few mi nutes to
cool off, until t he ind icator lig ht tur ns off .
-If the ind icator light does not turn off, do not
cont inue driving the veh icle . See an author ized
Aud i dea le r or aut horized Audi Serv ice Facility
for assis tance.
.&_ WARNING
- N ever ope n the hood if you ca n see or he ar
steam or coo la nt escaping from t he engine
compa rtment. This increases the risk of
burns. Wait until you no longer see o r hear
steam or coolant escaping.
- The engine compartment in any vehicle can
be a dange rous a rea. Stop the engine and
allow it to cool before working i n the engine
compa rtment. Always follow the informa­
tion fo und in
c> page 272.
@ Note
Do not continue driv ing if the . indicator
li ght turns on as this increases the risk of en­
g ine damage.
~ Safety belt
The . indicator light stays on unt il the dr iver 's
and front passenge r's safety belts are faste ned .
Above a certa in speed, the re will a lso be a war n­
i ng tone.
© Tips
Fo r additional info rmat ion on safety belts,
see c>page219.

u. co .... N
" N .... 0 0 :c ' 0 Generator/vehicle battery
• Electrical system: malfunction! Battery is
not being charged
There is a malfunction in the alternator or the ve­
hicle electrical system .
Drive to an autho rized Audi dea ler or authorized
Aud i Service Facility immediately. Because the ve­
hi cle battery is discharg ing, turn off all unneces­
sary electrical equipment s uch as the radio . See
a n author ized A udi dealer or authorized Audi
Service Facility if the battery charge level is too
l ow .
(•) Low battery charge : Battery will be charged
while driving
The start ing ability may be impaired .
If th is message turns off after a litt le while, the
vehicle battery charged enough wh ile driving.
If the message does not turn off, have an author ­
ized Audi dealer or authorized Audi Service Facili ­
ty repair the malfunction.
~ Engine
• Engine stopped: No power steering and
brake support.
There is a malfunction in the engine or in the fue l
supp ly system.
M ore force is needed to steer and brake the mov ­
ing vehicle when the engine is stopped .
If the ve­
hicle is rolling, try to bring it to a stop off to the
side from moving traffic. See an authorized Aud i
dealer or authorized Aud i Serv ice Facility for as­
sistance .
A WARNING
-
If the engine stops while driving, you will
need to use more force to brake the vehicle.
This inc reases the risk of an accident. There
will still be power steering if the ignition is
switched on while th e vehicle is rolling and
there is sufficient battery charge. Otherwise,
you must use greater force when steering .
Cockpit overview
"1:::7: Engine oil pressure
• Turn off engine and check oil level
Stop the engine and do not cont inue driving .
Check the eng ine o il level
¢pag e 275.
- If the engine o il level is too low, add engine oil
¢ page 2 76. Only continue driving once the in­
dicator light turns off .
-If the engine o il level is correct and the indica­
tor light still turns on, turn the engine off and
do not cont inue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as­
sistance.
(D Tips
The o il pressure warning is not an oil leve l in­
dicator. Always check the oil level regular ly.
~ , Engine oil level
.Please add oil immediately.
Add engine oil immediately ¢page 275.
l'I Add oil max . x qt (l). You may continue driv­
ing
Add the displayed amount of oil immediately
¢page 275.
@ -Steering lock
• Do not drive vehicle: Steering defective
The re is a malfunction in the electron ic steer ing
loc k. You canno t turn the ign ition on.
Do
not tow your vehicle because it cannot be
stee red. See an authorized Audi dealer or author­
ized Audi Service Facility for assistance.
!I! Steering lock: System fault Please contact
dealer
There is a malfunction in the e lectron ic steering
lock .
Drive to an authorized Audi dealer or authorized
Audi Service Facility immed iate ly to have the
malfunction corrected.
IJ>
21

Cockpit overview
A WARNING
Do not tow your veh icle when there is a mal­
function in the electronic steering lock
-this
increases the risk of an accident.
@-Engine start system
-
• Engine start system fault. Please contact
dealer
Do not switch the ignit ion off because you may
not be able to switch it o n aga in .
Drive to an authorized Audi dea ler or authorized
Aud i Serv ice Facility immediately to have the
malfunct io n corrected.
ml Engine start system fault. Please contact
dealer
There is a malfunction in the engine starting sys­
tem .
Drive to an authorized Aud i dea le r or authorized
Aud i Service Facility immediately to have the
malfunction corrected .
0 Air suspension
• Air suspension: System fault You can contin­
ue driving slowly (max. speed 35 mph)
There is a malfunction that can result in restrict­
ed driving stability .
Drive to an autho rized Aud i dea le r or authorized
Aud i Service Facility immediately at a maximum
speed of 35 mph (60 km/h) to have the ma lf unc­
tion corrected.
• Air suspension: Service mode. Vehicle can
only be moved with restrictions
Carefully drive to an author ized Audi dealer or
author ized Audi Service Facility immed iate ly to
have the serv ice mode deactivated.
rl Air suspension : System fault
There is a system malfunction that can result in
restricted driving stability or reduced ground
clearance.
22
Drive to an authorized A udi dealer or authorized
Audi Service Facility immediate ly to have the
malfunction corrected.
rl Air suspension: Vehicle too low Ground
clearance reduced
The ground clearance is very low due to a system
malfunction . Wait u ntil the air su spension sys­
tem has restored normal gro un d clearance. Oth­
erwise, conditions s uch as an uneven road surface
can lead to ve hicle damage.
;;.I C; Electronic Stabilization Control (ESC)
If the bl indicator light blinks while driving, the
ESC or ASR (Anti-Slip Regulation) is act ively regu­
lating.
If the
Jjj indicator light turns on, the system has
switched the ESC off. In this case, you can switch
the ignit ion off and then on to switch the ESC on
again. The indicator light turns off when the sys­
tem is functioning fully .
If the
II indicator light turns on, the ESC was
switched off using the
Im button Q page 12 7.
Stabilization control (ESC/ ABS): Fault! See
owner's manual
If the bl ind icat or light and the ABS indicato r
li ght
fJ] (U SA mode ls)/ [iJ (Canada models)
turn on and this message appears, there is a mal ­
function in the ABS system or electronic differen­
tia l lock. This also causes the ESC to malfunction .
The brakes still function with their normal power, but ABS is not active .
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the malfunction corrected.
A WARNING
If the la (USA mode ls) . (Canada mod­
els) brake system indicator light turns on to­
gethe r with the ABS and ESC indicator lights,
the ABS and ESC r egulating function may
ha ve malfunctioned. Functions that stabilize
the vehicle are no longer available. This could
cause the vehicle to swerve, which increases

u. co .... N
" N .... 0 0 :c ' the risk that the vehicle will slide. Drive care­
fully to the nearest a uthorized Audi dea ler or
authorized Audi Service Fac ility and have the
ma lf u nction corrected .
(D Tips
For additional information on ESC and ABS,
re fer to
c:> page 12 7.
i i !i.' Safety systems
The II (USA models)/ m (Canada mode ls) indi­
cator l ight monitors the safety systems .
I f the
II (U SA mode ls)/ m (Canada models) in­
d icator light turns on or blinks, the re is a mal­
function in a safety system such as the airbag or belt tensioner system .
Drive to an autho riz ed Aud i dea le r or a uthori zed
Aud i Service Facility immediately to have the
malfunct ion corrected.
A WARNING
Have the ma lf u nct ion in the safety systems
inspected immediately . O therwise, the re is a
r is k th at the systems may not activate during
a co llision, which increases the risk of serious
injury or deat h.
Lt Brake booster
II Brake ser vo: limited functionalit y. You can
continue driving . Contact workshop
-
There is a malfunc tion in the brake booster. The
b ra ke booster is availab le, bu t its effec tiveness is
r educed. Braking be havior may be different from
h ow it normally functions and the brake peda l
may vibrate.
Dri ve to an autho rize d Aud i de aler o r a uth o rized
Aud i Service Faci lity immediately to have t he
malfunction corrected.
{ 0 } Brake pads
EiJ Brake pads!
The brak e pads are wo rn.
Coc kpit o ver view
Drive to an authori zed A udi dealer or authori zed
Audi Service Facility immediate ly to have the
bra ke pads checked .
Applies to : USA mode ls
T he EiJ indicator light turns on togethe r wi th the
1111 indicator light.
EPC Engine control (gasoline engine)
~ Engine control: system m
alfunction! Reduce speed. Please contact dealer
T he re is an eng ine contro l ma lf u nction.
Immed iate ly dr ive s low ly to an author ized A udi
dealer or au thor ized A udi Se rvice Fa cility to have
t h e mal func tion corrected.
o Malfunction indicator lamp (MIL)
The ma lf u nction indicator lamp ( MIL) is pa rt of
t h e On -Board D iagnost ic System (080 II). The
¢..ij c;ymbo l turns on when the ignition is sw itched
o n and turns off aga in once the engine is started
and run ning at a steady idle speed . This indicates
t h at the MIL is f unction ing cor rectly .
The ind icator light tu rns on if there is a malfunc­
t ion in the engine electronics . See an authorized
Audi dealer or author ized A udi Service Fac ility to
have the malfunct ion cor rected . Fo r additional
i nforma tion, see
c:> page 25 .
The ind icator light can a lso turn o n if the fuel fill­
er cap is not closed correctly
c:> page 2 70 .
!?' Engine speed limitation
App lies to : vehicles wit h engine speed limitatio n
(m Maximum engine speed XXXX RPM
The eng ine speed is automatically limited to the
RPM shown in the instrument cluster d isplay.
This protects the engi ne from over heat ing .
The eng ine speed limitation deactivates once the
engine is no longe r in the critical temperatu re
range and you have re leased the accelerator ped­
al once .
If the engine speed limitation was activated by
an engine cont rol malfunction,
the ~ indicato r ..,
23