stop start AUDI A8 2015 Owner's Guide

208 Driving and en vir onm ent
The consumption estimates as published
by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehi ­
cle load and speed, road and weather con­
ditions, tr ip length, etc .
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac­
celerating.
• Avoid unnecessary accelerating and braking.
Vehicles use the most fuel when they are ac­
celerating . If you anticipate what is going to
happen next, you will need to brake less and,
thus , accelerate less. Let the vehicle coast
whenever poss ible -for example when you see
that the next traffic l ight is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
• Try and keep well below your car's max imum
speed .
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the
environment .
Fuel consumption, exhaust emissions and en­
g ine noise increase d isproportionately at high
speeds. If you dr ive at approximately three
quarters of top speed, fue l consumption will
be reduced by one half. Neve r dr ive faste r
than the posted speed limit and wea ther con­
d itions permit.
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
• Shut the engine off when you are not dr iv ing
the vehicle. •
Do not warm up the vehicle by letting the
engine run at id le .
T he id ling phase is automatically red uced for
vehicles with the Start -Stop -System*. It is ef ­
ficient to switch off the engine in vehicles
without the Start -Stop-System when stopped
at rai lroad crossings and long red lights . Turn­
ing the engine off for just 30-40 seconds
saves more fuel than is burned by starting the engine aga in .
It takes a long time for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are espec ially high
when the eng ine is warm ing up . So you should
drive away as soon as you start the engine and
avo id running at high rpms while the engine is
still warming up.
W Note
Do not leave engine idling unattended af­
ter start ing . If wa rning lights should come
on to indicate improper operation, they
wo uld go unheeded. Ex tended idling also
produces heat, wh ich could result in ove r­
heating or other damage to the ve hicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a
lot of fuel.
• Have your veh icle serviced at reg ular in ter -
vals .
By having your ve hicle regu la rly se rviced by an
Audi dealer he lps to ensu re that it runs p rop ­
erly and economically . The condition of your
vehicle not only affects its safety and ability to
ho ld its va lue, it also affects
fuel con sump­
tion .
Ch eck your oil e ach time you
fill y our tank.
The amount of o il used is re lated to engine
load and speed.
It is normal for the oil consumption of a new
engine to reach its lowest value after a certa in
mileage has bee n driven . ..,.

212 Trailertowing
drive at the maximum permissible speed. Re­
duce your speed even more if load, weather or
wind condit ions are unfavorable -part icu larly
when going downhill.
Reduce vehicle speed
immedi atel y if the trail ­
er shows the slightest sign of swaying .
Do not
tr y to stop th e sway ing by acceler ating .
Observe speed limi ts. In some areas, speeds
for vehicles towing trailers are lower than for
regular vehicles .
A lways apply brakes early. When driv ing
downhill, shift into a lower gear to use the en­
gine braking effect to slow the vehicle . Use of
the brakes a lone can cause them to overheat
and fail.
Coolant t emperature
The coolant temperature gauge¢ page 10
must be observed carefully. The coolant tem­
perat ure can increase if you drive on long in ­
clines in a low gear at high engine speeds. Re­
duce your speed immediate ly if the L EDs in
the top part of the display turn on.
F or more in formation about indicator lights,
referto .¢page
15 .
A WARNING
Anyone not properly restrained in a mov­
ing veh icle is at a much greater risk in an
accident . Never let anyone ride in your car
who is not properly wear ing the restra ints
provided by Aud i.
Trailer towing tips
Important to know
Your vehicle hand les different ly when towing
-
a trailer because of the addit ional weight and
d ifferent weight distribution . Safety, perform­
ance and economy w ill greatly depend on how
carefully you load your trailer and operate
your ng.
Before you actually tow your trailer, practice
turning, stopp ing and back ing up in an area
away from traffic . Keep practicing until you have become completely familiar with the way
your vehicle-trailer combination behaves and responds .
Backing up is diffi cult and requ ires practice .
Backing up with a trailer gene rally req uires
steering action opposite to that when backing
up your vehicle without a tra iler.
Maintain a greater d ista nce between you r ve­
hicle and the one in front of you . You wi ll need
more room to stop. To compensate for the
trailer, you w ill need a larger than normal
turning rad ius.
When passing, remember that you cannot ac ­
ce lerate as fast as you norma lly would be­
ca use of the added load. Make sure yo u have
enough room to pass. After passing, allow
plenty of room for your trailer be fore chang­
ing lanes again .
Avoid jerky starts, sharp turns or rapid lane changes.
(D Tips
- Do not tow a trailer during the break-in
period of your vehicle .
- If you tow a trailer, your Audi may re ­
quire more frequent maintenance due to
the extra load¢
page 290.
Parking on a slope
Do not park on a slope with a trailer. If it can­
not b e avoided, do so only after doing th e fol­
lowing:
When par king:
.,. App ly the foot brake.
.,. Have someone p lace chocks under both the
vehicle and the tra iler wheels .
.,. With chocks in place, slowly release the
brakes unt il the wheel chocks absorb the
load .
.,. Turn the whee ls towards the curb .
.,. Apply the parking brake .
.,. Select the P se lector lever posit ion.
When re starting after parking:
.,. App ly the foot brake.

,....,
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~ Start the engine.
~ Se lect the D selector lever position.
~ Re lease the park ing brake and slowly pull
out and away from the wheel chocks .
~ Stop and have someone retrieve the wheel
chocks.
(D Tips
If you move the selector lever of the auto­
matic transm ission to P before applying
the parking brake and before blocking the
wheels, you may have to use more force
later to move the lever out of the P posi­
tion .
Trailer towing 213
•
•

214 Vehicle care and cleaning
Vehicle care and
cleaning
General information
Regular, proper care helps to maintain your
ve hicle 's value. It can also be a requirement
when subm itting warranty claims for corro ­
sion damage and paint defects on the body .
The required cleaning and care prod ucts can
be obtained from your authorized Audi dea ler
or a qualified workshop. Read and follow the
instr uctions for use on th e packaging .
A WARNING
-Us ing cleaning and care products incor­
rec tly can be dange ro us to your hea lth .
- Always store cleaning and care products
o ut of rea ch of children to redu ce the r is k
of po ison ing.
@ For the sake of the environment
- Preferably use environmentally-friendly
products when buying cleaning agents .
- Do not d ispose of leftover cleaning and
ca re p rod ucts with household trash .
Car washes
-
The longer deposits remai n on t he veh icle, the
mo re the surface ca n be damaged. H igh tem­
pe rat ures such as those caused by su nlight in­
crease the d amaging effe cts.
Before washing, wet heavy deposi ts w ith p len ­
ty of wate r.
Stubbor n depos its s uch as bird dropp ings or
tree sap are best removed with plen ty of wa­
ter and a m icrofiber cloth .
A lso, was h the underside of your vehicle once
road salt stop s be ing used for the season.
Pres sure washers
When washing your ve hicles w ith a pressure
washer, always follow the operating instr uc­
tions provided w ith the pressure washe r. T his
is especially important in regard to the pres- s
u re and sp raying dis tance. Do not aim the
s p ray direct ly at sea ls on side windows, doo rs,
t h e hood, the rear lid o r the sunroof* or at
t ires, rubber hoses, insulating material, sen ­
sors" or camera lenses*. Keep a d ista nce of at
least 16 inches (40 cm) .
Do not remove snow and ice with a pressure
washer.
Never use rotary nozzles or high pressure noz­
zles .
T he wate r temperature m ust not be above
1 4 0 ° F (6 0 °C ).
Automatic car washes
Sp ray off the ve hicle befo re washing .
Make sure that the w indows and roof * are
closed and the winds hield wipers are off. Fol­
low instructions from the ca r wash operator,
especially if there are accesso ries attached to
you r vehicle .
If possible, use car washes that do not have
brushes .
Only use car washes where the vehicle re ­
mains stat ionary and the was hing equipment
moves around the ve hicle when washing and
dry ing . Car washes that move the veh icle
t hr ough the car wash us ing a chain are no t
recommend ed .
Wa shing by hand
Clean the ve hicle starting from the top and
worki ng down using a soft sponge or cleaning
brush . Use solvent -free clean ing products .
Washing vehicles with matte finish paint
by hand
To avoid damaging the paint when washing,
first remove dust and large particles from
you r vehicle . Ins ects, grease spots and fi nger­
prints are best removed w ith a spec ial cleane r
f o r matte finish paint .
Apply t he prod uct us ing a mic rofiber cloth . To
avo id damaging the pa int surface, do not use
too much pr essure .

.. Loosen the loop C? fig. 193 from the retaine r
and then pull on t he loop carefully
~CD-
.. Press on the left s ide of the fuel filler door
to open C?page 223, fig. 190.
(D Note
Only pull on the loop until you feel resist­
ance. You will not hear it release . Other­
w ise you could damage the emergency re­
lease mechanism .
Selective catalytic
reduction
General information
Applies to vehicles: with d iesel e ng in e
On vehicles w ith select ive catalytic reduction,
an urea solut ion (Ad Blue) is injected into the
exhaust system befo re a nitrogen oxide cata ­
lytic converter to reduce nitrogen emiss ions .
The AdBlue is stored in a separate tank in the
ve hicle. The Ad Blue usage accounts for ap­
prox imately 0 .5% to 1.2% of the diesel fuel
that is used .
You must refill the Ad Blue or have it refilled by your authorized Audi dealer or qualified
workshop as soon as the Ad Blue refill mes ­
sage appears in the instrument cluster
C? poge 226.
,& WARNING
Failure to hee d Ad Blue refi ll information in
t he ins trument cl uste r can preven t the ve­
hicle from being s tarted and d rive n. If the
vehicle cannot be driven and an eme rgency
ar ises, persona l injury can occur.
- Always have the Ad Blue tank refilled well
before the tank runs dry .
@ Tips
-The ins trument clus ter display indi cates
the distance remaining that ca n be driv­
en
C? page 225 . If the Ad Blue tank is
complete ly empty, the engi ne will not
start again after the ignition is switched
off.
Fu el suppl y and filli ng your fuel t ank 225
- Ad Blue is req uired by law to ope rate this
vehicle .
Indicator in the instrument cluster
display
Applies to vehicles: wit h diese l engine
The display indicates if the Ad Blue level is low
or if it was filled incorrectly.
Fi g. 194 In strume nt cl uste r: indicator in the d isp lay
AdBlue level low
You w ill be informed if t he Ad B lue in the tank
drops below a certa in level.
Please refill Ad Blue. Range 1500 miles
( 2400 km )
This indicator appears when there is on ly
enough AdBl ue left to drive the distance indi­
cated in the driver information system. Please
add AdBlue.
AdBlue /; Refill AdBlue! Cannot start en­
gine in 600 miles (1000 km) ! See owner 's
manu al
This indicator appears when there is only
enough Ad Bl ue left to d rive the distance indi­
cated in the driver information system. Please
add AdBl ue. Otherwise the engine will not
start again if you stop it once the distance in­
dicated has been driven.
Refill AdBlue! No rest art! See
owner's m anual
T his message appears w hen the Ad Blue tank
is empty. P lease ad d Ad Blue. Otherwise you
will not be able to start the eng ine again once
you stop it. ..,.

226 Fuel supply and filling your fuel tank
When the minimum AdBlue leve l has been
reached, you must add Ad Blue ¢
page 226.
¢-fi Filling incorrectly
If the Ad Blue tank was filled with a different
fluid than Ad Blue and the system detects that
it is incorrect, a message w ill appear.
Ad Blue../ AdBlue: Sy stem fault No restart
in 600 miles (1000 km)! See owner's man­
ual
This message appears when it is only poss ible
to drive the distance indicated in the dr iver in­
formation system. Drive to the nearest quali­
fied workshop to have the malfunction re­
pa ired. Otherwise the engine will not start
again if you stop it once the distance ind icated
has been driven.
Ad Blue: System fault No restart!
See owner's manual
This message appears if the system detects it
was filled incorrect ly. Drive immed iately to
the nearest qualified workshop to have the
malfunction repaired. Otherwise you will not
be ab le to start the engine again once you
stop it.
Filling AdBlue
Applies to vehicles: with diesel engine
A special refill bottle must be used to fill the
AdBlue .
Fig. 195 Rig ht rear vehicle s ide: removing the Ad B lue
filler cap
Fig. 196 AdBl ue fille r tube: inse rti ng the refill bottle
The Ad Blue filler tube is located near the d ie ­
sel fi ller tube . Always add 1 ga llon (3.8 liters)
of Ad Blue (two bott les) . Th is is the minimum
amount required to ensure the system detects
the refill ing and to start the engine . You can
add a maximum of approxima tely 4 gallons
(16 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.
"O pen the tank cover
r::!> page 223.
"Tur n the Ad B lue filler cap counterclockwise
to remove it
r::!> fig. 195.
"Remove the cap from the refill bottle .
.. Position the refill bottle on the filler tube
and turn the bottle clockwise until it stops
turning (Dr:!>fig .196 .
" 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 flu id stops flowing into the tank.
" Turn the bottle to the left w ithout pressing
on the bottom.
Closing the filler tube
" Turn the AdB lue fi ller cap clockw ise on the
fi ller tube until you hear it engage.
" 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 f illed. .,.

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-Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch :
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever to "P" (Park).
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical ha zards c:::> & .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition ,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm .
Checking and filling 229
-Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur.
(® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer.
Closing the engine hood
.,. Pull the hood down until the pressure from
the struts is reduced.
"'Let the hood
drop down and latch in place.
Do not try to push it shut; it may fail to en­
gage
c:::> ,A .
A WARNING
-
A hood that is not completely latched
could fly up and block your view while driv ­
ing .
- When you close the engine hood, check it
to make sure the safety catch has proper­ ly engaged. The hood should be flush
with the surrounding vehicle body parts.
- If you notice while driving that the hood
is not secured properly , stop at once and
close it. •
•

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Fa st charging the b att ery (charging rate
abo ve 14.8 Vo lt s)
Fo r technical reasons do not use a batt ery
charger that uses vo ltage g reater than 14.8
Volts to charge your vehicle's battery.
A WARNING
-
Charging a battery can be dangerous.
- Always follow the operating instructions
provided by the battery charger manu­
facturer when charging your battery.
- Never charge a fro zen battery. It may ex­
plode because of gas trapped in the ice.
Allow a frozen battery to thaw out first .
- Do not reuse batteries which were fro­
zen. The battery housing may have
cracked and weakened when the battery
froze .
- Charge the battery in a well ventilated
area . Keep away from open flame or elec­
trical spark . Do not smoke . Hydrogen gas
gene rated by the battery is exp losive.
- To reduce the danger of explosion , never
co nnect or disconnect cha rger cables
wh ile the charger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a compe­
t ent technicia n w ith the proper eq uip­
ment.
- Battery a cid that may spill d uring charg­
ing should be washed off wit h a solution
of warm wa ter and ba king soda to neu ­
tralize the acid .
CD Note
Never use a fast charge r as a booster to
s tart the engine. This will se rio usly d am­
age sensitive elect ronic components, such
as control units, relays, radio, etc., as we ll
as the battery charger .
Checking and fillin g
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
In telligen t energy managemen t in your vehi­
cle is responsible for distributing the electri ­
cal ene rgy throughout your vehicle
¢ page 202. The intelligent energy manage­
ment system will keep the engine battery
c h arged better than vehicles without this sys ­
tem. To make sure the additional electrica l en ­
ergy is avai lab le once again afte r yo u have
changed the battery, we recommend that you
insta ll batteries of the same type and m anu­
facture only (the same as those installed at
the time your ve hicle was delivered) . Specif i­
cat ions are listed on the battery housing . Your
authorized dea le r must code the battery in
the energy management system to enab le you
to use the ene rgy manageme nt func tions cor ­
re ct ly afte r replacing the battery.
The new battery must have the same capacity,
vo ltage
( 1 2 volts), amperage, const ruction
and plug seal ing .
When installing the battery, make sure the ig­ nition and a ll elect rical consume rs are switch­
ed off .
CD Note
- Make sure the ventilation hose on the
side of the battery is connected, other­
w ise fumes or battery a cid ca n leak out .
- Veh icles with the Start-Stop-System* are
e quipped with a spec ial cycle-p roof AGM
battery. Install ing a d iffe rent type of
ba ttery c an cause problems in the vehi ­
cle e lectrical system. Whe n replacing the
vehicle battery, always install one w ith
the same specifications as the origina l
battery.
- Battery mounts and clamps must a lways
be sec ured correct ly .
- Read and fo llow the wa rnings under
¢ page 241, Working on the battery be-
fore per forming any work on the battery . ..,_
243
•
•

2 78 Fuses and bulbs
Luggage compartment fuse assignment
Fig. 234 Luggage compartment: fuse pa nel with plastic bracket
Fuse p ane l@ (black) No. Equipment Amps
No . Equ ipm ent Amps
11 E lectromechanical steering 5
ESC button, data logger, di· 12
Selector lever,
BCM-2
5
1 agnostic connector, BCM · 1, 5
13 Audi side ass ist 5
adaptive light ing system
14 Engine control module
5
2 Networking gateway
5
15 Starter 40
3 adaptive air suspension 5
4 Parking system
5 16 Left headlight/Headlight
10/5
range control system
5 Steering column lever
5
6 Suspension control system 5 sensor
Fu
se p an el@ (red )
No. Equipment Amps
7
Belt tensioners, airbag con-
5
trol module
Heated washer fluid nozzles, 1
Left reversible belt
tensioner
2S
2 Right reversible belt
ten-
25
sioner
H ome link (garage door
Starter diagnos is, DC/DC
8 opener), night vision system 5
3 converter (Start-Stop-Sys·
5
control module, sport differ- tern)
ential, ionizer
9
Electromechanical parking 5
brake control module 4
DC/DC converter (Start-
7,5 Stop-System)
5 Image processing
7,5
10 Rear
seat heating, cooler, in· 5 terior rearview mirror

.... N .... N
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'SI: .... \!) 1.1'1
.... 1.1'1 ,....,
No. Equ ipment
6 R
ight headlight (headlight
with adaptive light)
7 ESC control module
8
Sound actuator, AEM control
module
9 Adaptive cruise control
10 Transmiss
ion control mod-
ule
11 Climate control
system sen-
sors
Fu se pan el© (bro w n)
No. Equipment
1 E
lectromechanical parking
brake
2 Suspension control system
sensor
3 Rear
Infotainment control
system controls
4 Smart modul tank
5 Front
climate control system
contro ls
6 Rear climate control
system
controls
7 Networking gateway
8 Cooler
9
I nterface for specia l func-
tions
10 Cell phone
adapter, Blue-
tooth handset
11 AEM control modu le
1 2 Selector lever
13 Ambient lighting
14 Rear exterior lighting
15 Fuel
pump
16 Electromechanical parking
brake
Amps
10
5
7,5 10
5
5
Amps
5
5
5
5
15
10
s
15
s
5
15
10
10
20
25
30
Fu ses and bulb s 2 79
Fus e pan el@ (bla ck)
•
No. Equipment Amps •
1 Automatic luggage com
-
5
partment lid
3 Rear sockets 20
5 adaptive air suspension
15
6 115-Vsocket 25
7 E
lectromechanical parking
30
brake
8 Rear seat heating 25
9 Rear exterior lighting
20
10 Rear climate control system
20
blower
Rear sun shade, closing aid,
11 luggage
compartment lock,
20
convenience key, fue l filler
door
12 Luggage compartment
lid
30
control module
Fuse panel ® (red)
No. Equipm ent Amps
1 Rear
seat adjustment but-
tons 5
3 Left rear seat (pneumatics) 7,5
5 Tra
iler hitch control module* 25
6 Left rear seat 30
7 Right rear seat 30
8 Trailer hitch contro l modu le*
25
9 Tra ile r hitc h control modu le* 15
10 Right rear
seat (pneumatics) 7,5
Fuse pan el® (brown )
No. Equipment Amps
1 Start-Stop-System,
Radio re-
30
ceiver/sound amplifier
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