2017 AUDI A8 fuel pressure

Table of content s
Other settings . . . . . . . . . . . . . . . . . . . . . . 196
H eadphon es . . . . . . . . . . . . . . . . . . . . . . . . 197
Media drives/connections . . . . . . . . . . . . . 200
Nav iga tion . . . . . . . . . . . . . . . . . . . . . . . . . 200
En te rt ainment sys tem s . . . . . . . . . . . . . . . 201
Video playback information . . . . . . . . . . . 2 02
Troubleshoot ing . . . . . . . . . . . . . . . . . . . . . 203
System settings . . . . . . . . . . . . . . . . . . 204
Sett ing the time and date . . . . . . . . . . . . . 204
Adjusting the so und . . . . . . . . . . . . . . . . . . 204
Ad justi ng the system vo lume . . . . . . . . . . 20 5
Othe r settings . . . . . . . . . . . . . . . . . . . . . . 205
Safety .. .. .. ... ... ...... ... .... .. . 207
Driving safety . . . . . . . . . . . . . . . . . . . . 207
Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Correct passenger seating positions . . . . . 208
D river's and front passenger 's footwell . . 212
Pedal ar ea. ... ... .. .. ..... ... .. .. .. . 212
Storing cargo cor rectly . . . . . . . . . . . . . . . 213
Reporting S afety Defects... ........ .. . 214
Audi pre sense .. ..... ......... .. . 216
Preventative passenger protection 216
Safety belts . . . . . . . . . . . . . . . . . . . . . . 218
Gene ral information . . . . . . . . . . . . . . . . . 218
Why use safety belts? . . . . . . . . . . . . . . . . 219
Safety belts . . . . . . . . . . . . . . . . . . . . . . . . 221
Bel t tensioners . . . . . . . . . . . . . . . . . . . . . . 224
Airbag system . . . . . . . . . . . . . . . . . . . . 226
Important information . . . . . . . . . . . . . . . 226
F ront ai rbags . . . . . . . . . . . . . . . . . . . . . . . 230
M on itor ing the Advanced Airbag System . 236
Knee ai rbags . . . . . . . . . . . . . . . . . . . . . . . . 24 0
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 24 3
Side curtain airbags . . . . . . . . . . . . . . . . . . 24 5
Child safety . . . . . . . . . . . . . . . . . . . . . . 248
I mportant info rmation . . . . . . . . . . . . . . . 248
Chi ld seats . . . . . . . . . . . . . . . . . . . . . . . . . 254
Securing chi ld seats . . . . . . . . . . . . . . . . . . 258
LATCH system (Lower anchorages and
t ethe rs for children) . . . . . . . . . . . . . . . . . 261
Addit io nal information . . . . . . . . . . . . . . . 266
4
Maintenance and Care . . . . . . . . . . . 267
Checking and Filling . . . . . . . . . . . . . 267
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 267
Refueling . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Catalytic converter .. .. ............. .. 271
E ngine compartment ................. 271
E ngine o il . .. .. .. .. .. .... .... ..... .. 274
Cooling sys tem . . . . . . . . . . . . . . . . . . . . . . 277
B rake fl uid . . . . . . . . . . . . . . . . . . . . . . . . . 279
B att ery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Windshie ld washer system . . . . . . . . . . . . 2 81
Service interva l display . . . . . . . . . . . . . . . 28 2
Wheels .... .. .. .. .. ............. .. 283
Whee ls and Tires . . . . . . . . . . . . . . . . . . . . 283
Tire Pressure Monitoring System (A8 , 58) 301
Tir e Pressure Monitor ing System (58
pl us) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 302
Care and cleaning . . . . . . . . . . . . . . . . 306
Genera l information . . . . . . . . . . . . . . . . . 306
Car was hes . . . . . . . . . . . . . . . . . . . . . . . . . 306
Cleaning and care i nformation . . . . . . . . . 307
Plac ing your vehicle out of serv ice . . . . . . 311
Troubleshooting . . . . . . . . . . . . . . . . . 312
Emergency assistance .......... . 312
Genera l info rmation . . . . . . . . . . . . . . . . . 312
E q ui pment .. .. .. .. .. ... ....... ... .. 312
Replacing wheels . . . . . . . . . . . . . . . . . . . . 313
S pa re ti res .. .. .. .. .. ............. .. 319
Fuses and bulbs . . . . . . . . . . . . . . . . . . 322
El ectr ica l fuses . . . . . . . . . . . . . . . . . . . . . . 322
Bu lbs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 326
Emergency situations ............ 327
Genera l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Start ing by pus hing or tow ing . . . . . . . . . . 327
Starting with jumper cab les . . . . . . . . . . . 327
U sing the jump start cabl e . . . . . . . . . . . . 328
Towing with a tow truck . . . . . . . . . . . . . . 329
Raising the vehicle .. .. ............. .. 331
Technical data and accessories . . 333
Technical data . . . . . . . . . . . . . . . . . . . . 333
Vehicle specificat ions . . . . . . . . . . . . . . . . 333
Notes abo ut technical data . . . . . . . . . . . . 333

0 co .... N ,..._
N .... 0 0 :c - 0 Generator/vehicle battery
• Electrical system: malfunction! Battery i s
not being charged
There is a malfunction in the alternator or the ve­
hicle electrical system .
Drive to an authori zed Aud i dealer or authorized
Audi Service Facility immediately. Because the ve ­
hicle battery is discharg ing , turn off all unneces­
sary e lectr ica l equipment such as the radio. See
your author ized Audi dealer or authorized Audi
Service Facility if the battery charge level is too
l ow .
(•) Low battery charge: Battery will be charged
while driving
T he 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 fuel
supp ly system .
More 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 Audi
dealer or authorized Aud i Serv ice Facility for as­
sistance .
_& WARNING
-
If the eng ine stops while dr iving, you will
need to use more force to brake the vehicle.
Thi s increases 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
• Turn off engine and check oil level
Stop the engine and do not cont inue driving.
Check the eng ine oil level
c::;. page 276.
- If the engine o il level is too low, add engine oil
c::;. page 276. 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 Aud i
dealer or authorized Audi Service Facility for as ­
sistance .
(D Tips
The oil pressure warning is not an oil leve l in­
dicator. Always check the oil level regularly .
~. Engine oil level
.P lease add oil immediately.
Add engine oil immediately c::;. page 2 74.
l!IAdd oil max. x qt
(l) You may continue driv­
ing
Add the displayed amount of oil immedia tely
c::;. page 2 7 4.
~ - Steering lock
• Do not drive vehicle: Steering defective
There is a malfunction in the electron ic st eering
lock. You cannot turn the ign ition on.
Do
not tow your vehicle because it cannot be
stee red. See an author ized Audi dea ler or author­
ized Audi Service Facility for assistance .
!II Steering lock: System fault Please contact
dealer
There is a ma lfunction in the e lectron ic steering
lock.
Drive to an authorized A udi dealer or authorized
Audi Service Facility immed iate ly to have the
malfunction corrected. .,..
21

Cockpit over view
light also turns on. Make sure t hat the speed
does not go above the speed displayed. Drive to
an author ized Audi dealer or authorized A udi
Serv ice Facility immediately to have the malfunc­
tion corrected .
_,.,. Engine oil sensor
• Oil l eve l! Se nsor def ectiv e
The sensor to check the engine oil leve l has
fa iled. Drive to an authori zed Aud i dea ler or au­
thor ized Audi Service Facility immediate ly to have
the malfunction corrected .
r Engine warm-up request
n Plea se warm up eng ine
F uel has entered the engine oil, either from low
outside temperatures or frequent short drives .
Drive unt il the engine is warm so that the fuel in
the eng ine oi l will evaporate . Avo id high engine
speeds, full acce le rating and heavy eng ine loads
when doing this.
Bil Tank system
liD Plea se refuel
If the indicator lig ht t urns on for the fi rst time
and the mess age appears, there are abo ut 4 gal ­
lons (15 lite rs) of fue l le ft in the tank.
II] Fuel tank s ystem malfunction! Pl ea se con­
tact dealer
There is a malfunction in the fue l tank system .
Drive to an authorized Audi dea ler or authorized
Aud i Serv ice Facility immediately to have the
malfunct ion corrected.
(D Tips
More information on ref ue ling is avai lab le on
page
c:> page 268.
~ Washer fluid level
C Please refill washer flu id
24
Fill the washer fluid fo r the windshie ld washer
system and the headlight washer system when
the ignit ion is switched off
c:> page 281 .
• Windshield wipers
m Windshield wiper defecti ve
There is a ma lf u nction with the winds hield wip­
ers .
D rive to an authori zed A udi dealer or au tho riz ed
Audi Se rvice Facility immediate ly to have the
malfunction corrected.
~ /0~ Bulb failure indicator
If the S:i indicator light turns on, a bulb has
failed . The message indicates the location of the
bulb.
If the
II indicator light also t urns on, then a rear
fog light has failed. The position of the indicator
li ght corresponds with the location on the vehi­
cle.
Vehicle light s: system fault!
There is a m alfu n ction in the headlights o r the
li ght sw itch .
D rive to an author ized A udi dealer or authorized
Audi Se rvice Fac ility immediate ly to have the
malfunction correc ted .
_& WARNING
-Light bulbs a re under pressure and can ex­
plode when b ulbs are replaced, whic h in­
creases the risk of inj ury.
- With H ID headlights * (xenon -plus head ­
lights), the high-vo ltage component must
be handled correct ly . Otherwise, there is a
risk of fatal in jury.
~(i) Headlight range control system
II He adlight ra nge cont rol system: system
f a ult!
There is a ma lfunction in the headlight range
contro l system, which may cause glare for other
drivers.
-

Driving
Economical and environmentally-friendly
driving
The amount of fue l consumption, the environ ­
mental impact and the wear to the engine,
brak es and tir es d epends mostly on your driving
style. W ith an anticipatory and economic driv ing
style, fuel consumption can be reduced by ap­ proximately 10-15% . The following tips will help
you conserve the environment and your money at the same time .
Anticip atory d riving
A vehicle uses the most fuel when acce lerating.
When you drive with ant ic ipat ion , you do not
need to brake as often and so you accelerate less .
When possible, let your ve hicle coast w ith a
g ear
e ngag ed ,
for example , when you notice that the
next traffic light is red. This produ ces a n eng ine
b raking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con­
sumption to zero (f uel shut-off during decelera ­
tion).
Shift effici ently
An effective way to save f uel is to upshift earlie r.
Staying in a gear too long uses fue l unnecessari ­
ly. Press down on the accelerator pedal slowly
and avoid "k ick-down".
Avoid full acceleration
You sho uld rare ly t ravel at the maximum vehicle
speed. High speeds cause a disp roportiona tely
h igh increase in fuel consumption, emissions and
traffic noise . Slower driving saves fuel.
Reduce idling time
The Start-Stop system * helps to reduce the id ling
time automatically . In vehicles witho ut the Start­
S top sys tem* , it is efficient to switch the eng ine
off when stopped at ra ilroad cross ings a nd long
red lights . Stopping t he engine for 30 -40 sec ­
onds already saves more fuel than the amount of
extra fuel needed to restart the eng ine .
It takes a very long time in idle to wa rm the en­
gine up to operating temperature . Wea r and
emissions are especially high in the warm -up
phase. Therefore, yo u should begin driving im-
74
mediate ly after s tarting the engine . Avoid high
RPMs whi le doing this.
Have maintenance performed regularly
By having maintenance pe rformed regu la rly on
you r vehicle, you can help to reduce fuel con ­
s u mption before you even sta rt to drive. The
maintenance condition of your vehicle not on ly
affects traffic safety and long-term value but al ­
so impacts fuel consumption. A poorly main­
ta ined engine can lead to fuel consumption that
i s 10% higher than normal.
Avo id short trip s
The engine and exha ust cleaning system must
reach their optima l operating temperature to ef­
fect ive ly reduce consumpt ion and emissions.
A cold engine uses a d isproportionately high
amount of fue l. The engine reaches operating
temperat ure and cons umption no rmalizes on ly
after approximate ly four kilometers.
Check the tire pre ssure
To save fuel, ma ke sure the tires are always in­
flated to t he corre ct pressure
¢ page 291 . The
fuel consumption can increase by 5% if the pres­
sure is only 0 .5 bar too low. Due to the increased
roll ing resistance, low tire pressures w ill also
lead to greater tire wear and will affect driving
behavior.
D rive with summer tires when possib le because
th is can increase fue l economy by up to 10%.
Eliminate unnecessary we ight
Since eve ry po und of extra weight increases f uel
consump tion, it pays to remove any unnecessa ry
weight .
A roof rac k increases the w ind resis tan ce on the
vehicle and shou ld be removed when it is not
needed . You will save approximately 12% o f you r
fuel when at speeds from 62-75 mph (100-120 km/h) .
Save energy
The eng ine d rives the genera tor , which gene rates
e lectric ity; the fuel consumpt ion also increases
with t he demand for e lec tricity . T he refore, switch ..,_

C) C0 ....
"' " "' .... 0 0 :r -Hill hold assist cannot hold the veh icle in
place on all h ills (for example, if the ground
is slippery or icy).
- To reduce the risk of an accident, always
make sure the vehicle is situated safely
wh ile stat io nary.
Automatic transmission
Introduction
The automat ic transmission is cont rolled e lec­
tron ica lly . Power is transferred using a torque
converter.
The transm ission shifts up or down a utomat ica lly
depending on w hich drive program is sele cted.
When a
moderate driving style is used , the
transmission selects the most economical d riving
mode. The t ransm iss ion upsh ifts at a lowe r RPM
a nd downshifts at a highe r RPM to imp rove fuel
effi ciency .
The transm ission sw itches to a spo rty mode after
a ki ck-down or when the drive r uses a
sporty
driving style
c haracterized by quick accelerator
pedal movements, heavy acce leration , freq uent
changes in speed and traveling at the maximum
speed.
If desired , the dr iver can also select the gears
manually (tiptronic mode)
c::> page 86 .
Indicator in the display
Fig . 9 5 Inst rumen t cluste r: s elec to r leve r po sit io n
@ -The current sele ctor leve r position is d is­
p layed continuously. In manua l mode, an Mis
d isp layed in addi tion to the gea r.
D rivi ng
@ -This display appea rs brief ly if you change the
sel ector lev er posit ion or if you pr ess the button
on the selector lever
c::> pag e 83 , fig . 96. The
current selector lever pos ition is shown with a
white background.
Selecting the selector lever position
Fi g. 9 6 Selecto r lever
-- p----
----R--- --1
----N - -- ---
- D/S--
Fig . 97 Pres sin g the b utto n on the se lector leve r
The current se lector lever position is disp layed on
t h e se lector lever
c::> fig. 96 .
.,. You may need to release the selector lever lock
depending on wh ich selector lever pos ition is
selected and which one yo u wou ld like to se lect
c::> page 84, Selector lever lock .
.,. To engage the ne arest se lector lever posi tion,
move the selector lever forw ard/back until you
fee l the first pressure po int. The selector lever
wi ll return to its orig inal position .
.,. To skip ove r one (or two) selector lever posi ­
tions, move the selector lever past the first
(and second) pressure po int into the desired
position . T he selector lever will return to its
or iginal position .
For example, to move directly from the D selec-
tor lever position to P when stopping the vehicle,
ll>
83

Checking and Filling
-Set the parking brake.
- Select the P selector lever position.
- Let the engine cool down.
- Never open the hood when there is steam or
coolant escaping from the engine compart­
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
- Keep children away from the engine com­
partment.
- Never spill fluids on a hot engine. These flu­
ids (such as the anti-freezing agent con­
tained in the coolant) can ignite.
- Avoid short circuits in the electrical system.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of personal injury.
- Never open the cap on the coolant expan­
sion tank when the engine is warm. The
cooling system is under pressure.
- To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
large cloth when opening.
- Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
- If tests need to be performed with the en­
gine running, there is additional danger due
to moving components (such as the ribbed
belt, alternator and radiator fan) and from
the high-voltage ignition system .
- Do not under any circumstances activate the
throttle inadvertently (for example, by hand
from the engine compartment) if the vehi­
cle is stationary but the engine is running
and a gear is engaged. Otherwise, the vehi­
cle will start to move immediately and this
could result in an accident.
- Pay attention to the following warnings list­
ed when work on the fuel system or on the
electrical equipment is required.
- Do not smoke .
- Never work near open flames.
- Always have a working fire extinguisher
nearby
- All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
272
cal burns, accidents or burns. Because of
this, all work must be performed
only by an
authorized Audi dealer or authorized Audi
Service Facility .
- To reduce the risk of electric shock and in­
jury, never touch the following components when the engine is running or is being start­
ed:
- Ignition cable
- Other components in the electronic high-
voltage ignition system
- If you must check or perform work on the
engine while it is running:
- Set the parking brake and place the selec­ tor lever in the P (park) position first.
- Always proceed with extreme caution so
that clothing, jewelry or long hair do not
become caught in the radiator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents . Tie back long hair before beginning
work and do not wear clothing that can
hang down into the engine .
- Limit your exposure to exhaust and chemi­
cals to as short a time as possible
c:> ,&. .
.&_ WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm .
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms .
Wash hands after handling.

Wheels
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the rim .
Bead separation
means a breakdown of the bond
between components in the bead.
Cord
means the strands forming the
plies in the tire.
Cold tire inflation pressure
means the tire pressure recom­
mended by the vehic le manufac­
turer for a tire of a des ignated
size that has not been driven for more than a couple of miles (kilo­
meters) at low speeds in the
three hour period before the tire pressure is measured or adj usted.
Curb weight
means the weight of a motor ve­
hicle w ith standard equipment in ­
cluding the maximum capacity of
fuel, oil, and coolant, air condi ­
tioning and additiona l weight of
op tional equipment.
E x tra load tire
means a tire des igned to operate
at higher loads and at h igher in -
286
flation pressures than t he corre­
spond ing standa rd tire. Extra load
tires may be identified as "XL",
"xl" , "EXTRA LOAD" , or "RF" on
the sidewall.
Gross A xle Weight Rating
("GAWR ")
means the load-carrying capacity
of a single axle system , measured
at the ti re-gro und interfaces.
Gross Vehicle Weight Rating
("GVWR")
means the max imum total loaded
weight of the vehicle .
Groove
means the space between two ad­
jacent tread ribs .
Load rating (code)
means the maximum load tha t a
tire is rated to carry for a given in­
flation pressure. You may not find
this informat ion on all ti res be­
cause it is not required by law .
Maximum load rating
means the load rating for a tire at
the maximum permissible infla­
tion p ressure for that ti re .
Maximum loaded vehicle
weight
means the sum of:

Wheels
A WARNING
Always adapt the tire pressure
to your driving style and vehicle load.
-Overloading can lead to loss of vehicle control and increase
the risk of an accident. Read and follow the important safe­
ty precautions inc:::> page 295,
Tires and vehicle load limits.
-The tire must flex more if the
tire pressure is too low or if
the vehicle speed or load are
too high. This heats the tire up
too much. This increases the
risk of an accident because it
can cause the tire to burst and
result in loss of vehicle con­
trol.
-Incorrect tire pressure in­ creases tire wear and has a
Tire pressure table
Please note that the information
contained in the following table
was correct at the time of print­ ing, and the information is sub­
ject to change . If there are differ­
ences between this information
and the tire pressures specified
on the label on the driver's side 8- pillar, always follow the specifica-
294
negative effect on driving and
braking behavior, which in­
creases the risk of an accident.
(D Note
Replace lost valve caps to re­
duce the risk of damage to the
tire valves.
@ For the sake of the environment
Tire pressure that is too low in­
creases fuel consumption.
(D Tips
Audi recommends using the
tire pressure specified for a normal load c:::>
table on
page 295
or for a full load
when the vehicle is partially
loaded.
tion on the 8-pillar label c:::>
page 293, fig. 267.
Make sure that the tire designa­
tion on your tire matches the des­ ignation on the tire pressure label
and the tire pressure table.
The following table lists recom- mended tire pressures in cold ..