2014 AUDI A8 ad blue

224 Fuel supply and filling your fuel tank
Winter operation
At temperatures below 20° F (-7° C), Diesel
fuel No.
2 loses its fluidity due to wax separa­
tion, which may clog the fuel filter or tank fil­
ter and keep the engine from running .
To help the filter from being clogged by wax,
the fue l filter in your vehicle is automatically
preheated. Preheating the fuel filter makes
operation of your vehicle possible with Diesel
fuel No. 2 down to -10° F (-24° C).
If you expect temperatures below
5° F
(-15° C)
ask your fuel dealer whether their
Diese l fuel No.
2 is sufficiently winterized for
the prevailing and expected temperatures.
If not winterized or insufficiently winterized
Diesel fuel has already thickened to the extent
that the engine will not start, warm the vehi­
cle up by leaving it in a heated garage.
It is normal that the engine noise leve l (die­
seling) is louder during the warm-up period in
winter. It is also norma l when whitish-blue
smoke comes out of the tailpipe after starting
and during warm-up . The amount of smoke
depends on the outs ide temperature.
Do not let your Diese l engine idle unnecessari ­
ly after a cold start. Driving off slowly will
shorten the warm-up period.
A WARNING
- Never use "starting assist fluids." They
may be potent ially explosive or cause a
"run-away" engine condition. This could
result in ser ious engine damage and per­
sonal injur y.
- Never use fuel line anti-freeze offered for
gasoline engines.
(D Note
- Your Diesel engine has been specifically designed to operate only on Ultra Low
Sulfur Diesel fuel. Therefore, never use
home heating oil or regular gasoline. The
properties of these fuels may cause seri­
ous damage to the fuel injection system
and to the engine. Using these fuels can
-
cause expensive engine repairs and will
also adversely affect your New Vehicle
Limited Warranty.
- If Diesel fuel sho uld get on any rubber
hose, it must be wiped off immediately.
Then wash the contaminated hose por­
tion with soap and warm water. Do not allow D iesel fuel to remain on connect­
ing hoses . They may develop leaks and
cause serious damage.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the right rear
side panel behind the fuel filler flap.
If the power locking system shou ld fail, you
can still open the flap manua lly -for detailed
instructions see ¢
page 22 7.
You can find the fuel tank capacity of your ve­
hicle in ¢
page 290.
The label on the inside of the fuel filler flap
te lls you the correct fuel for your vehicle. For
more information about fuel specifications,
see ¢
page 222.
Your vehicle fuel tank has an on board refuel­
ling vapo r recovery system. This feature helps
to prevent fue l vapors from escaping from the
tank and polluting the environment while you refuel your vehicle. In order to fi ll the tank
proper ly while protecting the environment,
please fo llow this refueling procedure careful­
ly.
A WARNING
-Under normal operating conditions, never
carry addit ional fuel conta iners in your car .
Gas canisters and other conta iners used to
transport fuel can be dangerous. Such con­
tainers, full or empty, may leak and could
cause a fire in a collision.
If you must
transport fuel to use for your lawn mower,
snow blower, etc., be very careful and al ­
ways observe loca l and state laws regard­
ing the use, transportation and storage of
such fuel containers. Make certain the ..,.

Fuel filler flap emergency release
You can open the fuel filler flap by hand if the
power locking system should fail.
Fig . 192 Veh icles w it h select ive catalytic reduct ion :
R ig ht side trim pane l
Fig . 1 93 Right side trim pa ne l in the lu ggage compart ­
ment: emergency release mechan ism
The emergency release mechanism is located
behind the right side trim pa ne l in the lug­
gage compartmen t. In vehicles with se lec tive
catalyt ic red uction *, remove the ve nt gri lle
first:
• Press b oth tabs @
r:::;, fig. 192 and ti lt the
ven t grille downward . You can then remove
t h e g rille upwa rd .
• Loosen the loop
r:::;, fig. 193 from the retainer
and then pull on the loop carefully
r:::;, (D ,
• Press on the left s ide of the fuel filler door
to open
r:::;, page 225, fig . 190.
(D Note
O nl y pull on the loop until you feel resist­
ance. You will not hear it release. Other­
w ise you cou ld damage t he emergency re­
lease mechanism .
Fuel suppl y and filli ng your fuel t ank 22 7
Selective catalytic
reduction
General information
Applies to vehicles: wi th diesel engine
On vehicles with se lective cata lytic reduction,
an urea solution (AdB lue) is injected into the
exhaust system before a n itrogen oxide cata­
lytic converter to reduce nitrogen emissions.
The Ad Blue is stored in a separate tank in t he
vehicle. The Ad Blue usage accounts for ap­
proximately 0.5% to 1.2% of the d iesel fue l
that is used.
You must refill the Ad Blue or have it refi lled
by your aut horized Audi dea ler or qua lified
workshop as soon as the Ad Blue refill mes­
sage appears in the instrument cluster
c;, page 229.
A WARNING
Failure to heed AdBlue refill information in
the instrument clus ter can prevent the ve­
hicl e from be ing started and dr iven. If the
vehi cle can not be driven and an emergen cy
ar ises, pe rsonal inju ry c an o ccu r.
- Always have the Ad Blue tank refi lled we ll
befo re the tank runs dry.
(i'} Tips
- Th e instr ument cluster d isplay ind icates
t he distance remain ing that can be d riv­
en
r:::;, page 228. I f th e A d Bl ue tank is
c omple tely empty, t he eng ine will not
sta rt ag ain afte r th e ig niti on is swit ched
off.
-Ad Blue is requi red by law t o opera te th is
vehicle.

228 Fuel supply and filling your fuel tank Indicator in the instrument cluster
display
Ap plies to vehicles: with d iesel e ngine
The display indi cates if the Ad Blu e lev el is low
or if i t was filled incorre ctly.
F ig. 194 Inst rument cl uster: indicator in the display
AdBlue level low
You will be in fo rmed if the Ad Blue in the tank
d rops be low a certain leve l.
Please refill Ad Blue. Range 1500 mile s
(2400 km)
This indica to r appea rs w hen t her e is on ly
e nough Ad Blue l eft to driv e th e d istance ind i­
cated in t he d rive r in format io n sys tem. Plea se
add AdBl ue.
Ad Blue /9 Refill Ad Blue! Cannot start en­
gine in 600 miles (1000 km )! See owner' s
manual
Th is indicator appears w hen there is on ly
e nough Ad B lue left to d rive the d istance ind i­
cated in t he driver informat io n system. Please
a d d Ad Bl ue. Otherw ise the eng ine will not
s ta rt ag ai n if you stop i t once the di sta nce i n­
d icated has been driven .
Refill Ad Blue! No restart! See
owner 's manual
Th is message appears whe n the AdBlue ta nk
i s e mpty . Please add AdBlue. Ot herwise yo u
will not be a ble to start the engi ne again o nce
you s top it.
W hen the minimum AdB lue leve l has been
r eached, you must add Ad Blue ~
page 229.
¢4' Filling incorrectly
If the AdBl ue t ank w as filled with a di fferent
fl uid than Ad B lue and the system detec ts t hat
it is inco rrect, a message will ap pear.
Ad Blue ./' AdBlue : System fault No re start
in 600 mile s (1000 km)! See owner' s man­
ual
T h is message appears w hen it i s on ly possibl e
to dr ive the dis tance indica ted in the driver in­
f ormat io n sys tem. Drive to the ne arest qu ali­
fied works hop to have the m alfunction re ­
p aired . Otherwise the eng ine will not start
again if you stop it once the distance ind icated
has been driven.
AdBlue: System fault No restart!
See owner's manual
T his mess age appears if the system detect s it
w as filled incorrec tly. Drive immedi ately to
t h e nearest qua lified wor kshop to h ave the
malfunction repaired. Othe rwise yo u wi ll not
be able to start the eng ine again once you
stop it.

Filling AdBlue
Applies to vehicles: wit h diesel engine
A special refill bottle must be used to fill the
AdBlue .
Fig. 195 Right rear ve hicle s ide: remov ing the Ad B lu e
cap
Fi g. 196 AdBl ue filler tube: inse rt in g the ref ill bott le
The Ad B lue fi ller tube is located near the die­
sel filler tube . Always add 1 gallon (3.8 liters)
of AdBlue (two bottles). This is the m inimum
amount req uired to ensure the system detects
the ref illing and to start the engi ne. The Ad Bl­
ue tank capac ity is approximate ly 6 gallons
(23 liters) .
Opening the filler tube and adding
AdBlu e
Requirement: The request to add Ad B lue m ust
appear in the inst rument cluster display.
.. Switch the ignition off .
.. Open the tank cover
¢page 225 .
.. Turn the cap counte rclockw ise with the l ug
wrenc h from the veh icle tool k it to remove it
~fig . 195.
.. Remove the cap from the refill bottle.
.. Position the refill bottle on the filler tube
and turn the bottle clockwise unt il it stops
turning
(D ¢ fig . 196.
Fu el suppl y and filli ng your fuel t ank 229
.. Press ligh tly against the bottom of the bot ­
tle @ to empty it. Continue pressing the
bottom of the bottle unt il it is empty or un ­
til f luid stops flowing into the tank.
.. Turn the bottle to the left w ithout pressing
on the bottom .
Clo sing the filler tube
.. Turn the cap clockwise on the filler tube
w ith the lug wrench until you hear it t ighten
completely .
.. Close the tank cover.
After filling
The vehicle must be driven . The system may
take up to two minutes to detect t hat the
AdB lue has been f illed .
.. If the re was no Ad Blue left in the tank and a
range of
O mi (0 km ) was displayed in the
instrument cluster, switch the ignition on
for about 15 seconds before start ing the en­
gine.
A WARNING
Ad B lue can irritate the sk in , eyes and res­
p ira to ry system .
If there is contact with
the fluid, flush immedia tely with plenty of
wa ter . Co nsu lt a phys ician if ne cessary.
(D Note
- On ly use AdB lue that conforms to the
s tandar d ISO 22241-1. Do not mix any
add itives w ith the AdBlue and do not d i­
lute it wi th water.
- Ad Blue is not a diesel add itive . Do not
add it to the diese l tank. If AdBl ue is
m ixed wi th diesel f uel, it can lead to
d amage to the engine an d the AdBl ue
t ank system . The Limited New Vehicle
W arranty does not cove r such damage .
- Ad B lue attacks su rfaces s uch as painted
vehicle components, p las tic a nd carpet .
Remove t he fluid as quickly as possible
w ith a damp cloth and p lenty o f cold wa­
ter. If the Ad Bl ue has already crystal-
lized, use warm water and a sponge. ..,_

230 Fuel supply and filling your fuel tank
AdBlue residue that is not removed w ill
crystallize and can damage the affected
surface .
- Do not store the refill bott le in the vehi­
cle. If it leaks, the escaping Ad B lue could
damage the vehicle inter ior.
- Do not allow Ad Blue to come into con­
tact with clothing . If there is contact
with the f luid, flush immediately with
plenty of water.
@ Tips
- You can obta in refill bott les from any au­
thorized Audi dealer or other qualified
workshop.
- Follow the Ad Bl ue manufacturer's in­
structions for usage and storage.

Fuses and bulb s 281
No . Equ ipment Amps Fus
e pan el@ (bla ck)
•
6 R
ight headlight (headlight
10
with adaptive light)
7 ESC control module 5 No. Equipment Amps
1 Automatic luggage com
-
5
partment lid
•
8
Sound actuator, AEM control
7,5
module 3 Rear
sockets 20
5 adaptive air suspension
15
9 Adaptive cruise control 10
6 115-Vsocket 25
10 Transmiss
ion control mod-
5
ule 7 E
lectromechanical parking
30
brake
11 Climate control
system sen-
5
8 Rear seat heating 25
sors
9 Rear exterior lighting 20
Fuse pan el© (bro w n)
No. Equipment Amps
10 Rear climate control system
20
blower
1 E
lectromechanical parking
5
brake
2 Suspension control system
5 Rear
sun shade, closing aid,
11 luggage
compartment lock,
20
convenience key, fue l filler
door
sensor
3 Right rear door
control mod-
7,5
ule 12
Luggage compartment
lid
30
control module
4 Smart modul tank 5
Fuse panel ® (red)
5 Front
climate control system
15
contro ls
6 Rear climate control
system
10
controls N o. Eq uipm ent Amps
1 Rear
seat adjustment but-
5
tons
3 Left rear seat (pneumatics) 7,5
7 Networking gateway 5
5 Tra
iler hitch control module* 20
8 Cooler
15
6 Left rear seat 30
9
Interface for specia l func-
5
tions 7 Right rear seat
30
8 Trailer hitch contro l module*
20
10 Cell phone
adapter, Blue-
5
tooth handset
9 T ra iler hitch control modu le* 15
11 AEM control modu le 15 10
Right rear
seat (pneumatics) 7,5
12 Selector lever 10
Fuse pan el® (bro wn)
13 Ambient lighting
10 No. Equipment Amps
14 Rear exterior lighting 20
15 Fuel
pump
25 1 Start-Stop-System,
Radio re-
30
ceiver/sound amplifier
16 Electromechanical parking
30
brake 2 Sound amplifie
r 30
Start-Stop-System, Rear
3 Seat
Entertainment, radio 7,5
receiver/sound amplifier
5 Automatic dimming interior
5
rearview mirror
6 DVD changer 5

A
A/C (automatic climate control) . ... .. .. 80
ABS
refer to Anti-lock braking system .. .. . 199
Accessories .. ............. .... .. ... 294
Adapt ive a ir s uspension/sport .. .. .. .. . 110
Adapt ive cruise control ......... .... ... 94
C leaning the sensor .......... .... .. 217
M essages .. ............. .... .. ... 10 1
Request for drive r in terven tion .. .. .. .. 99
S top-and-go traffic ....... .. .. .. .. .. 98
Adapt ive Lig ht (defect ive) .... ... . ... .. 22
AdBlue . ... .. .. .. .. .. .... ... .. .. ... 227
F il ling . .. .. .. ............. .. .. ... 229
Messages in the instrument cluster dis-
p lay ... .. .. ................. .. ... 228
Adding Engine coolant . ... .... ... .. .. .. ... 240
Eng ine oi l .. ............. .... .. .. . 237
W indshield washer fluid . .. .. .. .. .. . 247
Add it ives
Eng ine oil . ..... ...... ... .. .. .. ... 237
Adjustab le steer ing column .. .. .. .. .. .. 83
Ad justing
A ir distribution (automatic climate con-
trol) . .. .. .. .. ........ ... .. ... ... .. 81
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 58
Instrument illum inat ion .... ... ... ... 51
Steer ing colum n .......... .. .. .. .. .. 83
Temperatu re (automat ic climate co ntrol) 8 1
Airbag system . . . . . . . . . . . . . . . . . 153 , 172
Advanced A irbag System ....... . ... . 157
Advanced Airbag System components . 160
Ca re . .. .. .. .. .. ........... .. .. ... 166
C hildr en . .. ............. .... .. ... 178
Ch ild restra ints ........... .... .. .. . 179
Components (front airbags) . ... .. ... 160
Danger of fitting a child seat on the front
passenger seat . . . . . . . . . . . . . . . . . . . . 155
Disposal . .. .. ........... .. .. .. ... 166
Front airbags . . . . . . . . . . . . . . . . 157, 158
H ow do the front airbags work? . ..... 162
H ow many airbags does my vehicle
h ave? ... .. .. ........ ... .. ... ... . 160
H ow the Advan ced Airbag Sys tem com-
ponents wor k toge ther .... .. .. .. .. . 16 1
Inde x 297
Important sa fety inst ruct ions on the
knee airbag system .. ... .... ... .. .. 170
Important t hings to know .... ... .. .. 153
Knee a irbags . .. .. ................. 168
Monitoring .. .. .. .... ............. 164
PASSENGER AIR BAG OFF light ....... 164
Repa irs ... .. .. .. .. . .. .... .... .. .. 166
Safety instr uctions .. .............. . 166
S ide a irbags . .. .. .. . .............. 171
S ide cur tain airbags ............ .. .. 17 4
Warning/ind icator lights ..... ... .. .. . 18
Wa rning/Indicato r lights .... ... .. .. 164
Weight -sensing mat . ... .... ... .. .. 178
When must the system be inspected? 164
A ircraft
T ranspo rting yo ur vehicle
Alcanta ra 2
87
Cleaning ........ .. ............... 219
A ll Wheel Drive .. .. .... ............. 204
Winter tires . .. .. .. ............... 263
Alternator
refer to Gene rator . .. .. ..... ... .. .. . 16
Amb ience light ing ... ... ..... ... .... . SO
Anti-freeze
refer to Eng ine coolant ............. 239
Anti -lock b raking system . ..... ... .. .. 199
Warning/indicator lights . . . . . . . . . 18, 19
Ant i-s lip regu lation .... ......... .. .. 199
W arning/ind icator lights ........ .. .. . 18
Anti-theft systems Electronic immob ilizer ............. .. 32
ASR
refer to Anti-slip regulation 199
Audi braking gu ard
refer to Braking gua rd .. ..... ... .. .. . 94
Audi drive selec t
refer to Drive se lect . .............. . 110
Audi Serv ice Repair Manuals and Litera-
ture ..... .. .. .. .. .. ............... 292
A UTO
Automatic climate contro l .... ... .. .. . 80
A utomat ic head lights ....... ... .. .. . 46
A uto Lock .. .. .. .. ................. . 33
Automat ic be lt retractor ............. 148
Automatic climate control Air vents . ... .... .. . .. .. ..... ... .. . 81
Automat ic recirc ulation ............. . 82
•
•

304 Index
Mirrors Adjusting the exterior mirrors ..... .. .. 55
Compass ... ... ... ...... .... ..... .. 56
d' . 1mming ................ .. .. .... .. 56
Vanity mirrors . . . . . . . . . . . . . . . . .
51, 52
Monitoring the Advanced Airbag System 164
Multifunction stee ring wheel ..... .. .... 25
N
Natural leather
Cleaning
New tires and wheels
NHTSA Contact ing
Night vision ass istant ........ ... .. .. .
C lean ing camera lenses . ... .. .. .. .. .
Nitrogen oxide (NOx) cata lytic converter
refer to Ad Blue ........... .. .. .... .
219
259
143 113
2 17
227
Number o f seats ......... .. .. .. .. .. . 145
0
Occupa nt sea ting pos it io ns .. .. .. .. .. . 136
Octane rating ............. .. .. .. ... 222
Odometer .... .. .. ..... ... .. .. .... .. 2 7
OFF (automatic climate contro l) . . . . . . . . 80
O il
refer to Engine oil ........ .. .. .... . 234
On-board compute r . . . . . . . . . . . . . . . . . . 2 5
On-Board Diagnostic System (OBD)
Data L ink Connector (DLC) ...... .. .. ..
29
Elec tron ic speed lim iter . . . . . . . . . . . . . . 30
M alfunc tion I ndicator Lamp (M IL) . . . . . 29
Open door/hood/rear lid warning . . . . . . . 29
Opening
Hood . ..... ... . ...... ... .. .. .... .
231
Luggage compartment lid . . . . . . . . 38, 40
Panoramic sunroof ........ .. .. .... .. 44
Power windows . .......... ... .. .. .. 41
Sliding/tilting su nroof ...... ... .. ... . 43
Sun shades . . . . . . . . . . . . . . . . . . . . 4 5, 52
Operate your vehicle econom ica lly and
minim ize po llution ......... .. .. .... .
209
Other equipmen t (effic iency p rogram) 2 6
Outside mi rrors
refer to Exter ior mirrors . . . . . . . . . . . . . 55
p
Pa int damage ..... ... .. ..... .... . .. 2 18
Pa int No . ..... .. .. .. ... .. ... ..... .. 289
Panoramic s unroof . ............. .. .. . 44
Sun shade . .... .. .. ........... .... . 45
Parking .. .. .. .. . .............. .. .. . 87
Valet pa rking .... .. ... ..... ... .. .. . 42
Pa rking brake . .. .. .......... ...... .. 86
also refer to El ectromec hanical pa rking
brake . .. .. .. .. .. .. ........... .. .. .
86
Parking system
Adjusting the d isplay/war ning tone ...
132
Cleaning sensors/came ra lenses ...... 217
Cleaning the rear view camera . .. .. .. 123
Malfunction ... .. ............. .... 132
Peripher al c ameras . ........... .. .. 12 7
Tra ile r hitch ..... ... .. ..... .... . .. 132
Pa rking systems ... ... .. .. ... ..... .. 122
Particle fi lter
refer to Diese l particu late filter .. .. .. . 21
Pa rts replacement ... .... .... ... .. .. 294
Pass-through w ith sk i sack ..... .... ... . 71
PASSENGER AIR BAG OFF light . ... .. .. 164
Passenger protect io n .............. .. 19 7
Passive safety system .............. .. 135
Pedals ... .. .... .. .. ... ..... ... .. .. 140
Physical p rinciples of a frontal collision 146
Plastic parts
Cleaning .. .... .. ............. ....
218
Polishing ... .... .. .. .... .... ... .. .. 218
Pollen filter
re fer to P oll utant fi lter (automatic A/C
system) . .. .... .. ............. .... .
79
Pollutant filter (automatic A/C system) . . 79
Power locking system .... ..... ... .. .. . 33
Locking/unlock ing the ve hicle from in -
s ide .. .... .... .. ............. .... .
36
Luggage compartment lid ....... .... . 37
Selective unlock feature ...... .. .. .. . 34
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 34
U nlocking and loc king vehicle .. ... ... . 35
Power seat adjustment
Front seats . . . . . . . . . . . . . . . . . . . . . . . .
59
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . 61
Power steer ing (servot ronic) ... ... .. .. 203