2014 AUDI A8 check engine

Adjusting the disp lay and the warning
tones. . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Er ror messages . . . . . . . . . . . . . . . . . . 132
Trailer hitch . . . . . . . . . . . . . . . . . . . . . 132
Homelink . . . . . . . . . . . . . . . . . . . . . 133
Universal remote control ..... .. .. . .
Safety fir st ..... .... ... .. .. .. . .
Driving Safely ................ .
General notes ............ .. .. .. . .
Proper occupa nt seating positions . . .
Driver and passenger side footwell .. .
Pedal area .. ................. .. . .
Stowing luggage .......... ... .. . .
Report ing Safety Defects ... .. .. .. . .
Safety belt s ... .. ... ... .. .. .. . .
Gene ral notes ............ .... .. . .
Why s afety belts? ........ .... .. . .
Safety belts . ... .. .... ... .. .. ... .
Safety belt pretens ioners . ... .. .. . .
Airbag system ................ .
Important things to know . ... .. .. . .
F ront airbags ... ...... ... .. .. .. . .
Monitoring the Advanced Airbag
System ........................ .
Knee airbags ............. .... .. . .
Side airbags ................ .. .. .
Side curta in a irbags ........ ...... .
Child Safety ..... ..... ..... .. . .
Important th ings to know ...... .. . .
C hi ld safety seats ................ .
I nstall ing a chi ld safety seat .. .. .. . .
L A TC H L ower ancho rages and tethe rs
for chi ld ren . ............. .... .. . .
Addit ional Information
Audi pre sense ........ .. .. .. . .
Preventat ive passenger p rotec tion 133
135
135
135
136
140
140
141
1 4 3
145
1 4 5
146
1 48
15 1
153 153
157
164
168 171
174
177
177
183
187
190 196
197 19 7
Vehi cle operation . . . . . . . . . . . . . 199
Intelligent technology .. .. .. .. 199
Notice about data recorded by vehicle
control modules . . . . . . . . . . . . . . . . . . 199
Electronic Stabilization Control (ESC) . 199
Table of contents 3
Bra ki ng . . . . . . . . . . . . . . . . . . . . . . . . . 201
Servotronic -advanced power steering
system . . . . . . . . . . . . . . . . . . . . . . . . . 203
Driving with your quattro . . . . . . . . . . 204
Energy management . . . . . . . . . . . . . . 204
Driving and environment .... .
The first 1,000 miles (1,500 km) and
afterwards .. .. .... ..... ..... ... .
Catalytic converter .. . .. .... ...... .
D iesel pa rticulate filter ........... .
S h utting down veh icle ............ .
Avoid damaging the vehicle ........ .
Driving throug h water on ro ads .... .
Operate your vehicle economically and
minimize poll ution . .. .. .. ..... ... .
Trailer towing ... . .. .. ..... ... .
Driving with a trailer . .. ..... ... .. .
Trai ler towing tips
Vehicle care ..... . .. .. ..... ... .
Vehicle care and cleaning .. .. .
General information ............. .
Car washes .. .. .. .. ............. .
Cleaning and care information ..... .
Fuel supply and filling your
fuel tank ... .. .. ... ............ .
Gasoline ........ .. ............. .
Diesel fuel ....... .............. .
Fuel tank .. ... .... .............. .
Se lective ca ta lytic reduction ....... .
Checking and filling .......... .
Engine hood . .. .. ............... .
E ngine compartment ............. .
Engine o il ... .. .. .. ............. .
Engine cooling system .. ..... ... .. .
Brake fluid . ... .. .. . ... ...... ... .
Battery ... .. .. .. .. . .. ... .... ... .
Windsh ie ld/headlight washer 207
207
208
208
2
09
209
2 09
209
212
212
214
2 16
216
216
216
217
222
222
223
224
2 27
231
2 31
2 33
2 34
239
242
243
container . . . . . . . . . . . . . . . . . . . . . . . 247
Tires and wheels . . . . . . . . . . . . . . 248
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Tire pressure monitoring system . . . . 266
•
•

Instrument s and warnin g/indic ator ligh ts 11
gauge turn on under normal d riving condi ­
tions . The LEDs higher up may turn on when
the eng ine is under heavy load or the exter ior
temperature is high . This is no need to worry
as long as the. warning light in the instru­
ment cluster does not illuminate . If the LEDs
in the upper area of the display and the ind ica­
tor light . in the instrument cluster d isplay
turn on, the coolant temperature is too high
¢ page 16.
A WARNING
-Always observe the warning in
~ page 231, Working in the engine
compartment,
before opening the hood
and checking the engine coolant level.
- Never open the engine hood if you see or
hear steam, or if you see engine coolant
dr ipping from the engine compartment.
You could burn yourself. Let the engine
cool off first so that you cannot hear or
see any steam or engine coolant .
(D Note
- Mounting additional lights or accessories
in front of the a ir inlets reduces the cool­
i ng effect of the rad iator . At h igh outside
temperatures or high eng ine load, the
engine co uld overheat.
- The front spo ile r has been designed to
properly distrib ute the cooling air when
the veh icle is moving. If the spoiler is
damaged, this cou ld red uce the cooling
effect and t he engine co uld then over­
heat . Ask your aut ho rized Audi dea le r for
ass istance.
Tachometer (engine rev counter)
The tachometer indicates the engine RPM
(revolutions per minutes).
If engine R PM drops be low 1,500, you should
downshift to the next lower gear. The red a rea
at the end of the sca le ind icates maxim um
perm iss ible engine RPM after the break-in pe­
riod. Before reaching this area, move these­
lector lever to position "D (Drive)" or ease
your foot off the accelerator pedal.
@ Note
The tachometer need le should only briefly
be in the red zone: yo u could damage your
engine! The beg inning of the red zone var ­
i es dependi ng on the engine.
@ For the sake of the environment
Upsh ifting early saves fuel and reduces en ­
gine noise.
Fuel gauge
The fuel gauge only works when the ignition is
o n.
If the fue l level drops below 4 gallons (15
l ite rs), the bottom LE D tu rns red and the indi­
cator light~ turns on
c::> page 21. The bot­
tom LED b link s red when the fue l level is very
l ow .
The possible range based on the current fuel
level is shown in tab@~
page 24, fig. 4.
(D Note
Never run the ta nk complet ely dry. An ir­
regular supply of f uel can cause engine
misfiring and fuel cou ld enter the exha ust
system. The cata lytic converter could t hen
overheat and be damaged .
Warning/indicator
lights
Description
T he ind icator lights in the ins trument clus ter
blink or turn on. They indica te fu nct ions or
malfunctions
c;;> ,& .
Messages may appea r with some indicato r
li ghts. A warning signal will sound at the
same t ime. The indica tor lights an d messages
in the center of the displays may be rep laced
by other disp lays. To show them again, select
the tab for ind icator lights and messages us­
ing the multifunction steering whee l
c;;> page 24. If there are several malfunc­
tions, you can display them one at a time us- ing the thumbwheel. ..,.

12 Instruments and warning/indicator lights
Some indicators lights in the disp lay can turn
on in several colors.
A WARNING
- Failure to heed warning lights and other
important vehicle information may result
in serious personal injury or vehicle dam­
age.
- Whenever stalled or stopped for repair,
move the vehicle a safe distance off the
road, stop the engine, and turn on the
emergency flasher¢ page 47.
- The engine compartment of any motor
vehicle is a potentially hazardous area.
Before you check anything in the engine
compartment, stop the engine and let it
cool down. Always exerc ise extreme cau­
t ion when work ing under the hood
¢ page 231, Working in the engine
compartment
(D Tips
Malfunctions or faults will be identified e i­
ther with a red symbo l (pr iority 1 = Dan ­
ger!) or with a ye llow symbol (priority 2 -
Warning).
Overview
Some ind icator lights turn on briefly to check
the function of that system when you switch
the ign ition on . These systems are marked
with an../ in the follow ing tables . If one of
these ind icator lights does not turn on, there
is a malfunction in that system.
Red indicator lights
Red symbols indicate a priority malfunction -
Danger!
- Pull off the road .
- Stop the vehicle .
- T urn off the engine.
- Check the malfunctioning system. Contact
yo ur author ized Aud i dealer or a quali fied
workshop for assistance.
USA models :
Brake malfunction../
¢ page 14
Canada models:
Brake malfunction../
¢ page 14
USA models:
Electromechan ica l park ing brake
¢ page 15
Canada models:
Electromechan ical park ing brake
¢ page 15
Eng ine cooling system
¢ page 16
Eng ine o il pressure
¢ page 17
Eng ine o il level
¢ page 17
Battery
¢ page 16
Safety belt
¢page 16
Electronic steering column lock
¢ page 17
E ngine start system
¢ page 18
Central ind icator light
¢ page 18
USA models : Speed warning sys­
tem
¢ page 91
Canada models: Speed warning
system
¢ page 91
Adaptive cruise control./
¢ page
96
Air suspension*
¢ page 18
Pedestrian warning*
¢ page 113

14 Instruments and warning/indicator lights
•
a
Ad Bluel;>
Ad Blue../'
Aud i lane assist*
¢ page 103
Transmission ¢page 120
Transmission ¢ page 120
Electronic steering column lock
¢ page 17
Engine start system
¢ page 18
Central indicator light
¢page 18
Dynamic steering*./
¢ page 22
Air suspension* ¢ page 18
Sport differentia l*
¢ page 23
Re fill Ad Blue*
¢ page
227
AdBlue malfunction*
¢page
227
Other indicator lights
CRUISE
•
Iii
•
I
•
Turn s ignals
¢ page 23
USA models: Cruise control*
¢ page 91
Canada models : Cruise control*
¢ page 91
Adaptive cru ise control*
¢ page96
Adaptive cru ise control*
c:> page96
Adaptive cru ise contro l*
c:>page96
Audi lane assist* ¢ page 103
•
•
Start-Stop-System*
¢ page88
Start-Stop-System*
¢page88 High beam
¢ page48
BRAKE /((f) ) Brake system
The light illuminates when the ignition is
switched on .
It goes out afte r the engine has
been started . This indicates that the brake
warning light is functioning properly.
If the brake warning light does not light up
when the engine is cranking, there may be a
malfunction in the electrical system . In this
case, contact your Audi dealer.
If the brake system warn ing/indicator light
turns on, there is a brake system ma lfunction.
1111 ( USA models) /. (Canada models)
Stop vehicle and check brake fluid level
If the indicator light turns on and the mes­
sage appears, proceed as follows:
.. Pull off the road.
.. Stop the vehicle .
.. Turn off the engine .
.. Check the brake fluid level
c::> page 242.
.,. Contact your nearest authorized repair fa-
cility if necessary.
Warning! Fault in brake system. Contact
dealer
If the ABS ind icator light (I] (USA mode ls)/
(I] (Canada models), the ESC ind icator light
Ji! and the brake system indicator light
1111 (USA models)/ . (Canada models) turn
o n and the message appears, the ABS, ESC
and braking distr ibution are not working ¢_& .
Carefully drive to your author ized Audi dealer
immediately to have the malfunct ion correct-
ed ¢_& . .,.

16 Instruments and warning/indicator lights
automatically if the driver's safety be lt is fas­
tened .
Ill Parking brake!
If the II indicator light turns on and this
message appears, there is a parking brake
malfunction. Drive to your authorized Aud i
dealer or qualified wo rkshop immediately to
have the ma lf u nction corrected .
-l Engine cooling system malfunction
A malfunction in the engine cooling system
must be repaired as soon as possible.
• Switch off engine and check coolant level
If the indicator light turns on and the mes­
sage appears, the coolant temperature is too
high or the coolant level is too low.
• Pull off the road.
• Stop the vehicle.
•Turnoff the engine.
• Check coolant level ¢
page 240.
• Add coolant if necessary ¢ page 240.
• Continue driving only after the eng ine cool­
ant warning/ indicator light goes o ut.
• Contact your authorized Audi deale r for as-
sistance if necessary .
If the engine coolant level is correct, then the
radiator fan may be the cause of the malfunc­
tion.
• Coolant temperature too high! Please let
engine run with vehicle stationary
If the indicator light turns on and the mes ­
sage appears in trailer mode*, let the engine
run at id le for a few m inutes to cool down.
A WARNING
-If your vehicle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the engine and turn on the hazard
wa rning lights ¢
page 47, Emergency
flasher.
- Never open the hood if you see or hear
steam or coolant escap ing from the en- gine
compartment -you risk being scald­
ed. Wait until you can no longer see or
hear steam or coolant escaping.
- The engine compartment of any vehicle
is a dangerous area. Before you perform
any work in the engine compartment,
turn of the engine and allow it to cool.
Follow the warn ing stickers ¢
page 231.
([) Note
Do not continue dr iv ing if the . symbol
ill uminates. There is a malfunction in the
engine cooling system -you could damage
your engine .
~ Safety belts
This warning/indicator light reminds you to
put on your safety belt.
The . warning/ indicator light illum inates
when the ignition is switched on to remind
the driver and any front passenger to put on
the safety belt. Add itionally, an acoustic warn­
ing (gong) w ill also sound .
For more Informat ion
¢ page 145, 4'-Safety
belt warning light .
· u Battery
This warning/indicator light detects a mal­
function in the generator or in the vehicle's
electrical system .
The. warn ing/ indicator light illuminates
when you switch on the ignition and must go
out after the eng ine has started.
• Alternator fault: Battery is not being
charged
If the indicator light turns on and the mes­
sage appears, there is a malfunct ion in the
generator or veh icle electrical system.
Drive to your authorized Audi dealer or quali­
fied workshop immediate ly. Because the vehi­
cle battery is discharging, turn off all unnec ­
essary electrical equipment such as the radio . .,.

Instruments and warning/indicator lights 17
Seek professional assistance if the battery
charge leve l is too low.
(•) Low battery charge: battery will be
c harged while driving
If the indicator light turns on and the mes­
sage appears, there may be limited start ing
ability.
If th is message turns off after a little wh ile,
the battery charged enough wh ile driving .
If the message does not turn off, have your
author ized Audi dealer or qualified workshop
correct the malfunction.
~ Engine oil pressure malfunction
The red engine oil pressure warning symbol
requires immediate service or repair . Driving
with a low-oil-pressure indication is likely to
inflict severe damage to the engine.
• Switch off engine and check oil level
If the indicator light turns on and the mes­
sage appears, the oil pressure is too low.
.. Pull off the road.
.. Stop the vehicle .
.. Turn off the engine.
.,. Check the engine oil level¢ page 236 .
.. If the engine oil level is too low, add engine
o il ¢
page 237 . Make sure that the oil pres­
sure warning symbol. appears no longer
in the d isplay before you start driving again.
.,. If the engine oil level is correct and the indi­
cator light st ill turns on, turn the engine off
and do not continue driving. Seek professio­
nal assistance.
(D Tips
- The engine oil pressure symbol. is
not an indicator for a low engine oil lev­
el. Do not rely on it. Instead, check the
oil level in your engine at regular inter·
vals, preferably each time you refuel,
and always before going on a long trip.
- The yellow oil level warning indication
Ill requires oil refill or workshop serv­
ice without delay. Do not wait until the red oil pressure
warning. starts to
flash before you respond to the low oil
level warning
II. By then, your engine
may already have suffered serious dam­
age.
~"' Engine oil level
• WARNING : Please add oil immediately
If the indicator light and the driver message
appear, add engine o il immed iately
¢ page 234.
II Add oil, max . x qt (l). You may continue
driving
When the symbol and the driver message ap ­
pear, add the amount of oil appearing in the
display at the next opportunity ¢
page 234.
@-Steering column lock
• Do not drive vehicle: Steering defective
If the indicator light turns on and the mes­
sage appears, there is an e lectronic steering
column lock malfunction. You cannot switch
the ignit ion on .
Do
not tow your vehicle because it cannot be
steered. Seek professiona l assistance .
!'II Steering lock: system fault. Please con­
tact deale r
If the indicator light turns on and the mes­
sage appears, there is an e lectronic stee ring
column lock malfunction.
Drive to your authorized Audi dealer immedi­
ate ly to have the malfunction corrected .
A WARNING
Your vehicle must not be towed in the
event of a malfunction in the elec tron ic
steering column lock because it cannot be
steered due to the locked steering . If it is
towed with the steering locked, there is
the r isk of an accident.

18 Instruments and warning/indicator lights
©-Engine start system
• Engine start sy stem fault. Please con­
tact dealer
If t h e in dicator light turns on and the mes­
sage appears, do
not sw itch the ignition off
be cause you may not be able to switch it on
aga in .
D rive to you r autho rized Aud i deale r immedi­
ate ly to hav e th e malfunction corrected.
11111 Engine start system fault. Please con­
tact dealer
If the indicator light t urns on and the mes ­
sage appears, there is a ma lfunction in the en­
g ine start system.
D rive to yo ur autho rize d Au di dea le r immedi­
ate ly to have t he mal function cor rected .
0 Air suspension
• Air suspension: system fault. Can cont in­
ue slowly with max. 35 mph .
There is a malfunctio n that can res ult in re­
stricted dr iving stability.
Ca re fully d rive a t a maxim um s peed o f 35
mph ( 60 km/h) to your author ized A udi dealer
or qua lified wor kshop to have the malfunction
corrected.
• Air suspension: service mode. Vehicle
can only be moved with restrictions
Ca re fully drive to your au thori zed A udi d ealer
or quali fied wor kshop immedi ate ly to have
the servi ce mode deac tiva ted.
l!IJ Air suspension fault
There is a system ma lfunction that can result
in restr icted dr iving stability or red uced
g ro und cleara nce.
Drive to yo ur authorized Aud i dealer immedi­
ately to have t he malfunction corrected .
l!IJ Air suspension: vehicle too low. Ground
clearance reduced
T he groun d clearance is very low due to a sys ­
tem malfunction. Wa it until the air suspen­
s io n system has resto red no rma l ground clear­
ance. Ot herwise, cond it ions such as an uneven
road surface can lead to vehicle damage.
tli1!.t Safety systems
T he fl (U SA models)/ El(Canada models) indi­
cator lig ht monitors the safety sys tems e .g.
airbags , p retens ione rs and illuminates fo r a
f ew seco nds ea ch time y ou swit ch t he ign ition
o n .
If th e
I (USA mod els)/ EI (Can ada models)
i ndica to r li ght does no t go o ut, or if it illum i­
n at es while yo u are d riving, o r if it start s to
blink, the n t here is a m alf u nctio n somewhe re
in the sys tem . If the ligh t does no t illumina te
whe n you switch the ig nitio n on, t his also
means there is a mal funct ion .
A WARNING ....._
If yo u have a ma lf u nction in t he safety sys­
tems, contact you r auth orized Audi dea le r
immedia tely. Othe rwise t he safety sys­
t ems may not work properly i n an acc i­
d en t.
~ Central indicator light
If th e indicato r light . or D tur ns o n, check
th e m essage in th e i nstru men t cluster.
F!,J [}; Electronic Stabilization Control
(ESC)
If the bl indicator light b links w hile d riving,
the ESC or AS R (Anti-Slip Re gulation) is active­
ly reg ulating.
If the
bl indicator light turns on , th e system
has switc hed the ESC off . In t his case, yo u can
switch the ign ition off and then on to switch
the ESC o n aga in. The ind icator lig ht tu rns off
whe n the system is functioni ng fu lly.
If the
fl indicato r light turns on, ESC was re-
stricted using the
[!I button ¢ page 199. ..,.

20 Instrum ent s a nd w arn in g/i ndic ato r light s
wheels co uld lock up first under hard
braking. Rear wheel lock-up can cause
loss of vehicle control and an accident.
Have your vehicle repaired immediately
by your authorized Aud i dealer or a quali­
fied workshop. Drive slowly and avoid
sudden, hard brake applications.
- Canada models: If the brake warn ing
light ., the
DJ warning light and the
ABS warning light
[iJ come on togethe r,
the rear wheels could lock up fi rst under
hard braking. Rear wheel lock-up can
cause loss of vehicle control and an acci­
dent. Have your vehicle repaired immedi­
ately by your authorized Audi dealer or a
qualified workshop. Dr ive slowly and
avo id sudden, hard brake applicat ions.
(0) Worn brake pads
EtJ Bra ke pads!
If the warn ing light illuminates, immediately
contact your authorized Audi dealer or quali­
f ied workshop to have all brake pads inspect·
ed. On USA models the warning light EtJ
comes on together with the warn ing light
1111 -Both sets of brake pads on an axle
must always be replaced at the same time.
_& WARNING
Dr iv ing with bad brakes can cause a colli­
sion and serious personal injury.
- If the wa rning light
EtJ and the wa rning
light
11111> with the message B ra ke
p ads!
comes on in the instr ument cluster
display, immediately contact your au­
thorized Aud i dealer or qualified work­
shop to have a ll brake pads checked or
replaced if necessary.
l ) - : USA models only
-
EPC Electronic power control
Applies to veh icles: w ith gasoline engine
This warning/indicator light monitors the
electronic power control .
The~ warning/indicator light (Electronic
Power Control) illuminates when you switch
the ignition on as a function check.
(D Tips
If this warning/indicator light illuminates
while you are driving, then there is a mal­
funct ion in the engine electronics. Have
the malfunct ion corrected as soon as pos­
s ible by your authorized Audi dealer or
qualified workshop.
W Glow plug system
Applies to veh icles: w ith diesel engine
The control light illuminates when the glow
plug system is active.
If the Im i ndicator light illuminates, the glow
plug system is act ive. You should start the en­
gine immediately after the ind icator light
switches off. The ind icator light only i llum i­
na tes for approximate ly 1 second if the en­
gine is warm or if the outside temperature is
above 46 QF (8 QC).
(D Tips
-If the glow plug indicator light i llum i­
nates while driving, there is an engine
contro l ma lfunction. The engine should
be checked immed iate ly .
- If the indicator light does not illuminate at a ll when switch ing the ignition on,
there may be a malfunction in the glow
plug system. The engine should be
checked.
' o Malfunction Indicator Lamp (MIL)
The Malfunction Indicator Lamp (MIL) is part
of the On-Board Diagnostic (OBD II) system.
T he symbo l
¢1111ij lights up when the ignition is .,.