2015 AUDI A6 Ad blue

218 Fuel supply and filling your fuel tank
@ Tips
-Running your engine while refuelling
may cause vapors to escape or even
cause fue l to spill out of the tank. This
would then shut off the fuel nozzle be­
fore the tank is full.
- Do not refuel your vehicle w ith the igni­
tion switched on. The fuel gauge may
otherwise not indicate the correct fuel
level after refuelling.
- Diesel vehicles* are equipped with a die­
sel m isfueling protector. It allows the
vehicle to be fueled only w ith a diesel
fuel pump nozzle. A worn or damaged
nozzle or a nozzle that is too small may
not be able to open the diesel misfueling
protector . If this is the case, try turning
the nozz le before inserting it in the fue l
filler neck, use a different fuel pump or see your authorized Audi dealer or au­
thorized repair facility for assistance.
- The fuel filler flap of your vehicle is not
locked when you lock the vehicle from
the inside.
Fuel filler flap emergency release
You can open the fuel filler flap by hand if the
power locking system should fail.
Fig. 181 Luggage compartment: opening the side t rim
Fig. 182 R ight sid e tr im panel in t he luggage compart ·
men t: emergency release mechanism
Opening the side trim
.. To remove the right side trim, first remove
the retainer from the mounts ¢
fig. 181.
.. Turn both locking mechanisms 90° to the
left using a coin or a similar object and re­
move the locking mechanisms.
.. Tilt the retainer upward and pull the trim
out. Lay the trim down on its side, because
there is an electr ical wire on the back.
Fuel filler door emergency release
The emergency release mechanism is located
behind the right side trim panel in the lug­
gage compartment .
.. Loosen the loop¢
fig. 182 from the retainer
and then pull on the loop carefully
¢ (D .
.. Press on the left side of the fuel filler door
to open
¢ page 216, fig. 179 .
(D Note
Only pull on the loop until you feel resist­
ance. You w ill not hear it release. Other­
wise you could damage the emergency re­
lease mechanism.
Selective catalytic
reduction
General information
Applies to vehicles : wit h diese l eng ine
On vehicles with selective catalytic reduction,
an urea solution (AdBlue) is injected into the
exhaust system before a nitrogen oxide cata­
lytic converter to reduce nitrogen emissions. ..,.

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"' rl
"' rl
The AdBlue is stored in a separate tank in the
vehicle. The Ad Blue usage accounts for ap­ prox imately 0.5% to 1.2% of the diese l fuel
that is used.
You must refill the Ad Bl ue or have it refilled
by your authorized A udi dealer or qualified
workshop as soon as the AdBlue refill mes­
sage appears in the instrument cluster
¢page 220.
A WARNING
Failure to heed Ad Blue ref ill information in
the instrument cluste r can prevent the ve­
hicle from being started and drive n. If the
vehicle cannot be driven and an eme rgency
a rises, perso na l inju ry can occur.
- Always have t he Ad B lue tank refilled well
before the t an k ru n s dry.
(D Tips
- The instrument cluster display indicates
the distance remaining that can be dr iv­
en
¢ page 219. If the Ad Blue tan k is
com plete ly empty, the eng ine will not
star t aga in a fter the ign ition i s swit ched
off.
- Ad Blue is required by l aw to ope rate this
vehicle .
Indicator in the instrument cluster
display
Applies to vehicles: with d iesel e ngine
The display indicates if the Ad Blue level is low
or if it was filled incorrectly.
F ig . 18 3 Ins trume nt cluste r: in dicato r in th e d isplay
Fu el suppl y and filli ng your fuel t ank 219
AdBlue level low
Yo u w ill be informed if t he A d Bl ue in the t ank
drops below a certain leve l.
Plea se refill Ad Blue. Range 1500 mile s
(2400 km)
This ind icator appears when there is only
enough Ad Blue left to d rive the distance i ndi­
cate d in the drive r informa tion syst em. Please
add AdBl ue.
AdBlue ,0 Refill AdBlue! Cannot start en­
gin e in
600 miles (1000 km )! See owner's
manual
This indicator appears whe n there is only
enough Ad Bl ue left to drive the distance indi ­
cated in the drive r information system. Please
add AdBl ue. Othe rwise the e ngin e w ill not
s tart again if you s top it o nce the di stan ce in ­
di cated has been driven.
Refill AdBlue! No re start! See
owner's manual
This message appears when the Ad Blue tank
i s empty . Please add Ad B lue. Otherw ise you
will not be able to sta rt the eng ine again once
you stop it.
When the minimum Ad Blue leve l has bee n
reached, you must add Ad Blue¢
page 220 .
&I Filling incorrectly
If the Ad B lue tank was filled with a d ifferent
fluid than Ad B lue and the system detects that
it is incorrect, a message will appear .
AdBlue ,/ AdBlue: System fault No restart
in
600 mile s (1000 km)! See owner 's man­
ual
T his message appears when it is on ly possible
to
dr ive the distance indicated in the driver in ­
format ion system. D rive to the nearest quali­
fied workshop to have the ma lfunction re­
paired. Otherw ise the eng ine will not start
again if you stop it once the distance indicated
has been dr iven.
Ad Blue: System fault No restart!
See owne r's manual
lilJ,

220 Fuel supply and filling your fuel tank
This message appears if the system detects it
was filled incorrect ly. Drive immediate ly to
the nearest qualified workshop to have the malfunction repaired. Otherwise you will not
be able to start the engine again once you
stop it.
Filling AdBlue
App lies to vehicles: with diesel eng in e
A special refill bo ttle must be used to fill the
AdBlue.
Fig. 184 Rig ht rear vehicle si de: removing the Ad Blue
cap
Fig. 185 Ad8lue filler tub e: inse rting the refi ll bott le
The Ad Blue fi ller tube is located near the die­
sel filler tube. Always add 1.5 gallons (5 . 7 lit­
ers) of AdBlue (three bottles). This is the mini­
mum amount required to ensure the system
detects the refilling and to start the engine.
The Ad Blue tank capacity is approximately
4 .5 gal lons (17 liters).
Opening the filler tube and adding
AdBlue
Requirement: The request to add Ad Blue must
appear in the instrument cluster display.
• Switch the ignition off.
• Open the tank cover
c:;,poge 216.
• Turn the cap counterclockwise with the lug
wrench from the vehicle too l kit to remove it
C::,fig. 184.
• Remove the cap from the refill bottle.
• Position the refill bottle on the filler tube
and turn the bottle clockwise until it stops
turning
(D ~ fig. 185 .
• Press lightly against the bottom of the bot­
tle @to empty it . Continue pressing the
bottom of the bottle until it is empty or un­
til fluid stops flowing into the tank.
• Turn the bottle to the left without pressing
on the bottom.
Closing the filler tube
• Turn the cap clockwise on the filler tube
w ith the lug wrench until you hear it tighten
completely .
• Close the tank cover .
After filling
The vehicle must be driven. The system may
take up to two minutes to detect that the
AdBlue has been filled.
• If there was no Ad Blue left in the tank and a
range of
O mi (0 km ) was displayed in the
ins trument cluster, switch the ign ition on
for about 15 seconds before start ing the en­
gine.
_& WARNING
-Ad Blue can irritate the skin, eyes and res­
piratory system. If there is contact with
the fluid, flush immediately with plenty of
water. Consult a phys ician if necessary.
(D Note
-Only use Ad Blu e that conforms to the
standard ISO 22241-1. Do not mix any
additives with the AdBlue and do not di­
lute it with water.
- Do not add Ad Blue to the diese l tank or
add diese l fuel to the Ad Blue tank. Mix­
ing can lead to damage to the engine
and the AdBlue tank system . The Limited
New Vehicle Warranty does not cover
such damage.

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,...., ..,., ,....,
-Ad B lue attacks surfaces such as painted
vehicle components, plastic and carpet .
Remove the fluid as quick ly as possib le
with a damp cloth and plenty of cold wa­
ter. If the Ad Blue has already crystal­
lized, use warm water and a sponge.
AdB lue residue that is not removed w ill
crystall ize and can damage the affected
su rface.
- Do not store the refill bott le in the vehi­
cle. If it leaks, the escap ing Ad B lue could
damage the vehicle inter ior.
- Do not allow AdBlue to come into con­
tact with clo thing. If there is contact
wi th the f lui d, flush immedi ately with
plenty of w ater .
(D Tips
-You can obtain refill bott les from any au­
thorized Audi de aler or o ther qua lified
workshop .
- Follow the AdBl ue manufacturer's in­
str uctions for usage and storage.
Fuel supply and filling your fuel tank 221
•
•

28 0 Fu ses and bulb s
No. Equ ipment Amps
4 Suspension control system sen-
5
sor
5 E
lectronic Stabilization Control
5
(ESC) mod ule
6 Climate control
5
7 Adaptive cruise control 10
8
Airbag control module, front
5
passenger's seat sensor system
9 Gateway 5
Garage door opener (Homelink),
10 night vision system contro l 5
module
11 Image
processing (active lane
10
ass ist, adaptive cruise control)
12 Dynamic steering 5
13 Terminal 15 in the
instrument
15
panel
14 Termina
l 15 in the luggage com-
partment 30
15 T
erminal 15 (engine)
15
16 Starter 40
Fuse p anel @ (b rown )
No . Equipment Amps
1 Gateway
5
2 Cl imate control 10
Electronic Stabilization Contro l
10
3
(ESC) module
4 Front door
(driver's side)
30
5 Power seat adjustment (driver's
7,5
seat)
6 Dynamic steering
35
7 Su nroof 20
Rear door control module (driv-
15
8
er's side)
9 Lumbar support
(Front passen-
5
ger seat)
10 Tire pressure monitoring system
5
11 Su
nroof, rear spoiler (Sportback)
20
12 Driver
door control module
15
Fuse panel © (r e d )
No . Equipment
2 Fuel pump
3 Brake light
sensor/brake pedal
sensor system
4 AdBlue
control module (Diesel)/
Engine acoustics
5 Left rear door contro l modu le
6 Power seat adjustment
(pas-
senger's seat)
7 Horn
8 Windshield wiper motor
9
Light/rain sensor,
heater for vid-
eo camera in windscreen
10 Lumbar support (driver seat)
11 Front
passenger door control
module
12 Right rear door control mod ule
Front passenger side cockpit fuse
assignment Amp
s
25
5/5
5/7,5 30
7,5 15
30
5
5
15
15
Fig . 2 1 6 Front passenger side cockp it: fuse pane l w ith
plastic bracket
Fu se p anel @ (bla ck)
No . Equipment Amps
1 Head-up Display
5
2 MMI Display 5
3 CD/DVD changer
5
4 MMI unit/dr ives 7,5
5 Chip
card reader (not in all coun-
5
tries)
6 Instrument cluster
5
7 Steering column
switch module 5

A
A/C (automatic climate control) .... .. .. 70
A/C (climate control) . . . . . . . . . . . . . . . . . 68
Accessories .. ............. .... .. .. . 294
Active lane assist . . . . . . . . . . . . . . . . . . . . 93
Activating and deactiva ting . .. .. .. .. .. 94
C leaning the camera area ... ... .. .. . 2 10
Descript ion ...... ..... ... ... ... .... 93
Instrument cluster indicator light . . . . . 94
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 94
Notes on instrument cluster display .. .. 94
Sett ing the steering wheel vibrat ion .. .. 95
Adaptive a ir s uspension/sport . ... .. .. . 100
Adapt ive cruise control . . . . . . . . . . . . . . . . 84
C lea ning the sensor ....... .. .. .. .. . 210
Messages .. ............. .... .. .. .. 91
Request for driver intervention . . . . . . . . 89
Stop-and-go traffic . . . . . . . . . . . . . . . . . 88
Adapt ive Lig ht (defective) ... .. .. .. .. .. 22
AdBlue .. .. .. ................. .. ... 218
F il ling . .. .. ................. .. ... 220
Messages in the instrument cluster dis -
play . .. .. .. .. ........ ... .. ... ... . 219
Adding Eng ine coolant ........... .... .. .. . 229
Eng ine oil .. .. ........... .. .. .. ... 226
W indshield washer fluid ....... ... .. 235
Addit ives
E ng ine oi l .. ............. .... .. ... 226
Adj usti ng
A ir dist ribution (au toma tic climate con-
trol) ... .. .. .. .... .. .... ... .. .. .... 71
air distribution (cl imate control) ... .. .. 68
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 52
Instrument illum inat ion ... .. .. .. .. .. 46
Steer ing colum n elec trically .. .. .. .. .. 73
Steer ing colum n manually . .. .. .. .. .. 73
Temperature (automat ic climate co ntrol) 71
Temperature (climate control) .. ... ... 68
Airbag system . . . . . . . . . . . . . . . . . 145, 166
Advanced Airbag System ... .. .. .. .. . 149
Advanced Airbag System components . 153
Care ...... ... ................ .... 161
M N Chi ld ren ... ... .. .. ...... .. .. .. .. . 173 0
~ Chi ld restra ints ........... .. .. .. ... 173
~ Components (front airbags) .. .. .. .. . 153 1.1"1 ,...., 1.1"1 ,....,
Inde x 297
Danger of fitting a ch ild seat on the front
passenger seat ..... . ... ...... ... .. 147
•
Disposa l .. .. .. .. .. . .. ... .... ... .. 161 •
Front a irbags . . . . . . . . . . . . . . . . 149, 151
How do the front airbags work? .... .. 155
How many a irbags does my vehicle
have? .. .. .. .. .. .. . .. .... .... .... 153
How the Advanced Airbag System com-
ponents work togethe r ......... .... 155
Impo rtant sa fe ty instru ctions on the
knee airbag sys tem ... .. .... ... .. .. 164
Important t hings to know . . . . . . . . . . . 145
Knee airbags ... .... . ... ...... ... .. 162
Monitoring .. .. .. ................. 157
PASSENGER AIR BAG OFF light ..... .. 158
Repairs ... .. .. .. .... ............. 161
Safety instructions .. .............. . 160
S ide a irbags ... .. .. . .. .... .... .. .. 164
S ide curtain airbags . ... ..... ... .... 167
Warning/ind icator lights ........ .. .. . 19
Warning/Indicato r lights ....... .. .. 157
When must t he system be inspected? 157
A ircraft
Transpo rting your vehicle 287
A lcantara
Cleaning .. .. .. .. ................. 212
A ll-wheel drive .. .... . ... ...... ... .. 197
Winter tires ..... .. . .. .. ..... ... .. 264
Alternato r . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Amb ience lighting . ................. . 46
Anti -freeze
refer to Engine coolant . ..... ... .. .. 228
Anti- lock b raking system ............ . 193
Warning/ind icator lights ........ .. .. . 19
Anti-slip regu lation .. ........... .... 193
Warning/ind icator lights .. .. ... ... .. . 19
Anti-theft systems Electronic immobi lizer ....... ... .. .. . 32
Asht ray .... .. .. .. .. . ............... 58
Audi braking guard
refer to brak ing guard ............. .. 84
Audi drive select
refer to drive select ... ............. 100
A udi Se rv ice Repair Manuals and Liter a-
tu re .. ... .. .. .... .. . .. ... .... ... .. 292

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-----------------------------~I~ n~d~ e~x 303
K
Key ... .... .. .. .... .. .... ... .. .. .... 31
Battery rep lacement master key ... .. .. 32
Emergency key . . . . . . . . . . . . . . . . . . . . . 31
Key not recognized . . . . . . . . . . . . . . . . . . 76
Key replacement . . . . . . . . . . . . . . . . . . . 31
Master key . . . . . . . . . . . . . . . . . . . . . . . . 31
Mechanical key . . . . . . . . . . . . . . . . . . . . . 32
Kick-down tiptronic
K . b nee air ags . ............. .. .. .. .. .
D escr ipt ion .... .. ..... ... .. .. .. .. .
How they work . ... .... ... .. .. .. .. . 111
16 2
162 163
Important safety instructions ... .. .. . 164
L
Lane assist . . . . . . . . . . . . . . . . . . . . . . . . . 93
L ane Change Ass istant
refer to side assist . . . . . . . . . . . . . . . . . . 96
LATCH
.... .. ............. .... .. ... 185
Descr ipt ion . .... ......... .... .. .. . 186
Instal ling a child restraint .. .. .. .. .. . 187
L ocat ion . ............ ...... .... .. 186
M ounting and releasing the ancho rage
hook .. .. .. .... ......... .... .. .. . 187
Launch Contro l Program .... .. .. .. .. . 112
L eather clean ing/protection ... .. .. ... 2 12
L eaving home .. ..... ...... .. .. .. .. .. 45
Lifting jack ........................ 275
L ift ing vehicle
Light 287
Ambie nce lighting ........... .. .... . 46
Com ing/Leavi ng home ......... ... ... 45
D aytime running lig hts .... .. .. .. .. .. 43
E mergency flashers ....... .. .. .. .. .. 44
E xte rio r lighting ... .... ... .. .. .. .. .. 43
Headlig ht range contro l ... .. .. .. .. .. 4 3
High beam ... ... ..... ... .. .. .. .... 45
Low beam .. ............. .... .. .... 43
Rear fog lights ........... .. .. .. .. .. 43
Side marker lights ........ .. .. .. .. .. 43
Turn signa ls .. ..... ...... .. .. .. .. .. 45
Light/rain sensor Headlights . ............. .... .. .. .. 43
Intermittent (windshield wipers) .. .. .. 48
Sensor defective . . . . . . . . . . . . . . . . . . . . 23 Load
ing the roof rack .. .. .. ... ... .. .. . 62
Locking Power loc king switc h ............... . 36
Remote con trol . . . . . . . . . . . . . . . . . . . . 34
U sing the key .. .. ................. . 36
Low beams
. .. .. .... .......... ...... 43
Lower universal anchorages (Canada) 185
Luggage compartment Cargo ne t . . . . . . . . . . . . . . . . . . . . . . . . . 6S
E nlarging . . . . . . . . . . . . . . . . . . . . . . . . . 64
Loading ... .. .... .. . .. .. ..... ... .. . 63
Movement-activated ope ning . ... .. .. . 38
Ski sack ... .. .. .. .. . .............. . 65
Stow ing luggage ..... ............. 132
Tie-downs . . . . . . . . . . . . . . . . . . . . . . . . . 6S
Lumbar support Front seats . . . . . . . . . . . . . . . . . . . . . . . . 54
M
Maintenance . ....... . .. .. ..... ... .. 292
Malfunction Ind icator Lamp (MIL) . . 21, 29
Manua l shift program ... ............. 111
Massage func tio n
F ron t se ats . . . . . . . . . . . . . . . . . . . . . . . . 54
Matte f inish paint clean ing .......... . 209
Mechanica l key .. .. .. . ... ...... ... .. . 32
Mir ro rs
Adjus ting t he ex ter ior mirrors . . . . . . . . . SO
d' . 1mming .. .. .... .. . .. .. ..... ... .. . 51
Vanity mirrors ... .. . ... ...... ... .. . 47
Monito ring the Advanced Airbag System 157
Mult ifunct ion steer ing whee l .......... . 25
mult itron ic (automatic t ransm ission) . .. 107
N
Natu ra l leather
Cleaning
New tires and wheels
NH TSA
Contacting 212
2S7
134
N igh t vision assistant ............ .. .. 103
Cleaning came ra lenses ......... .. .. 210
N itrogen oxide (NOx) catalyt ic converte r
refer to Ad Blue .......... ......... . 218
Number of seats . .. .... ......... .. .. 136
•
•

306 Index
Saving fuel
Cylinder on d emand System .. .... .. .. 25
Efficiency program . . . . . . . . . . . . . . . . . . 26
Recuperation . . . . . . . . . . . . . . . . . . . . . . 25
Seat adjustment Controls . . . . . . . . . . . . . . . . . . . . . . . . . . S3
Driver's seat .............. ... .... .. 52
Front passenger's seat . . . . . . . . . . . . . . . 53
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 52
Head restraints . . . . . . . . . . . . . . . S5, 130
Safety guidelines .. ........ ... .. .. .. 52
Seat belts Why YOU MUST wear them
136
Seat covers
C leaning . .... ............. .. .... . 212
Seat heating/vent ilation (automatic cli ·
mate control) . . . . . . . . . . . . . . . . . . . . . . . 71
Seat heating (climate control) .. .. ...... 69
Seating position Driver ... .. ................ ..... . 127
Front passenger . . . . . . . . . . . . . . . . . . . 128
How to adjust the front seats ....... . 128
Incorrect seat position . . . . . . . . . . . . . . 130
Occupants .. .. . .......... .. .. .... . 127
Rear passengers . . . . . . . . . . . . . . . . . . . 129
Seat memory . . . . . . . . . . . . . . . . . . . . . . . 56
Seats Comfort seat side view .. .. .. .. .. .. . . 57
Seat symmetry ........... .. .. .. .. .. 57
Seats (number) ... .... ..... .. .. .. .. . 136
Selective catalytic reduction
refer to Ad Blue ............ ... .... . 218
Selective unlock feature ..... .... .... .. 34
Selector lever . . . . . . . . . . . . . . . . . . . . . . 107
Selecto r lever emergency release . . . . . . 113
Service and disposal Safety belt pretens ioner ... .. .. .... . 143
Service interval display ...... .. .. .... .. 27
Shift paddles ............... ... .... . 111
Ship (transporting your vehicle) ..... .. . 287
Shutting down vehicle ....... ... .. .. . 202
Side airbags Description .............. .. .. .. .. . 164
How they work ............ ... .... . 166
side assist . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Adjusting the brightness ... .. .. .. .. . . 98
Sensor range ............ .. .. .... .. 97 Side assist
Activating and deactivating ....... ... . 98
Cleaning the sensors ............ ... 210
S ide curtain airbags ............. .. .. 167
Description .... .. ............. .... 167
How they work ... ................ . 169
Safety instructions ............. .... 169
S ide marker lights . ... .......... .. .. . 43
Ski sack .. .. .. .. .. ............. .. .. . 65
Sliding/tilting sunroof Emergency closing ................ .. 41
Opening and closing ............ ... . 40
Snow cha ins .. .. . .. ............ .. .. 265
Socket . .... .... ................... . 59
Sources of information aboutchi ld re-
straints and their use ................ 189
Space-saving spare tire ........... .. .. 271
Spare tire . .. .... .. ............. .... 271
Speed limiter ..... ................ .. 30
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 2 7
Speed rating letter code .............. 260
Speed warning system ........... .. .. . 81
Sport differen tial .. ... .......... .. .. 100
Indicator light . .. ................ .. 23
Start-Stop-System ................. .. 79
Engine does not switched off .... .... . 80
Engine starts automatically ..... .... . 80
Indicator lights .. ............. .... . 79
Messages . ...... .. .............. .. 81
Start ing/stopp ing the engine .. .. .. .. . 79
switching off/on .. .... ...... ... .. .. . 81
START ENGINE STOP button ...... .. .. . 74
Starting from rest ... .............. .. . 78
Starting off with a trailer .......... ... . 78
Starting the engine ................ .. 74
Stee ring
Electrically adjustable steering wheel . . 73
Manua lly adjustable steering wheel ... . 73
also refer to Electromechanical power as-
sist ..... ..... .. .. .............. . 197
Steering wheel Easy entry feature ............. .... . 7 4
Indicator light . . . . . . . . . . . . . . . . 18, 197
Steering wheel heating .......... ... . 72