2018 AUDI A8 wheel

u. co .... N
" N .... 0 0 :c ' The steering wheel will be easy to move after
starting the engine. Re-initialization might be
necessary if the steering whee l was moved hard
to the left and right while the vehicle was not
moving . The display turns off if the initia liz ation
was successful.
(D Tips
- If the . or l;:r-ij indicator light only stays on
for a short time, you may continue driving.
-The dynamic steering stability systems
<=>page 127 are not available in the event of
a system malfunction.
-For additional informat ion on dynamic
steering, see
<=> page 111.
ALL wheel drive (quattro)
In all wheel drive, all four wheels are powered .
General information
In all wheel drive, the driving power is divided be­
tween a ll four wheels . This happens automatical ­
ly depending on your driving behavior as well as
the current road conditions. Also see
<=> page 12 7, E lectronic Stabilization Control
(ESC) .
With the sport differential*, power distri­
bution to the rear wheels is variable and can be
adjusted using the drive select
<=>page 111.
The all wheel drive concept is designed for high
engine power . Your vehicle is exceptionally pow­
erful and has excellent driving characterist ics
both under normal driving conditions and on
snow and ice. Always read and follo w safety pre ­
cautions<=>.&. .
Winter tires
By using all wheel drive, your vehicle has good
forward mot ion with standard tires in winter con­
ditions. However, in winter we recommend using
winter or all season tires on all four wheels, be­
cause this will improve the braking effect.
Snow chains
If there are snow cha in laws, snow chains must
a lso be used on vehicles with all wheel drive
<=> page 298, Snow chains .
Intelligent Technology
Replacing tires
For vehicles with all wheel drive, only wheels with
the same rolling circumference should be used.
Avoid using tires with different tread depths
<=> page 2 90, New tires or wheels.
Offroad vehicle?
Your Audi is not an offroad vehicle -there is not
enough ground clearance. For this reason, avoid
difficu lt terrain .
A WARNING ~ -
-Also, in vehicles with all whee l drive, adapt
your driving style to the current road and
traffic cond itions. Do not let the increased
safety prov ided tempt you into taking r isks,
because this increases the risk of an acci ­
dent.
- The braking ability of your vehicle is limited
to the traction of the wheels. In this way, it
is not different from a two wheel drive vehi­
cle. Do not be tempted to accelerate to a
high speed when the road is slipp ery, be­
cause this incr eases the risk of an accident.
- Note that on wet streets, the front wheels
can "hydrop lane" if dr iv in g at speeds that
are too high . Unlike front wheel drive
vehicles, the engine does not rev higher sud­
den ly when the vehicle begins hydroplaning.
For this reason, adapt your speed to the
road conditions to reduce the risk of an acci­
dent.
Energy management
The starting ability is optimized
The energy management system manages the
electrical energy distribution and optimizes the
availability of electrical energy for starting the
engine.
When a vehicle with a conventiona l energy sys­
tem is not driven for a long t ime, the vehicle bat­
te ry is drained by equipment (for example, the
immobilizer). In certain circumstances, there
cou ld may not be enough energy to start the en-
gine.
.,.
131

lL t:0 ....
"" ......
"" .... 0 0 :c ' Multi Media Interface
Traffic safety information
Audi recommend s performing certain Infotain­
ment system fun ctions, such as entering a desti­
nation, only when the vehicle is stationary . Al ­
ways be prepared to stop operating the Infotain­
ment system in the interest of your safety and
the safety of other road users.
_& WARNING
Only use the Infotainment system when traf­
fic conditions permit and always in a way that
allows you to maintain complete control over
your vehicle.
Introduction
T he Multi Media Interface , or MMI for short ,
combines various systems for communication,
naviga tion and entertainmen t in your Audi. You
can operate the MMI using the MMI control pan­
el, the multifunction steering wheel or the voice
recognition system* .
Fig. 153 MMI control pa nel wi th MMI touc h control pad
MMI control panel overview
(D MMI touch control pad . . . . . . . . . 137
@ Buttons for open ing menus
directly . . . . . . . . . . . . . . . . . . . . . . 136
® On/Off knob . . . . . . . . . . . . . . . . . 135
@ Arrow buttons . . . . . . . . . . . . . . . . 137
® Control buttons . . . . . . . . . . . . . . . 136
@ Control knob . . . . . . . . . . . . . . . . . 136
0 IBACKlbutton . . . . . . . . . . . . . . . . 136
Multi Media Inte rface
Switching the MMI on
and off
The MMI switches on and off automatically with
the ignition. It can also be switched on or off
manually .
-Switching on manually: press the On/Off knob
® briefly c::;, page 135, fig. 153 . Or: press the
IM ENU I button or one of the buttons to directly
open the
menus @,:::;, page 136, fig . 154 .
When the system is switched on, the last menu
that was selected is displayed and the last audio
source that was selected begins playing .
-Switching off manually: press and hold the
On/Off
knob ® c::;, page 135, fig. 153 until the
MMI switches off.
If the MMI has been switch­
ed off manually, it does
not switch on again au­
tomatically the next time the ignition is switch­
ed on.
The MMI can still be operated for approximately
ten minutes after switching the ignition
off. If
you do not press any buttons or the control knob
on the MMI control panel with in this time, the
MM I switches
off automatically.
a) Tips
-The MMI switches off automatically if the
engine is not running and the veh icle bat­
tery is low.
-There may be delays when extending or re­
tracting the display.
Adjusting the volume
The volume of an audio source or a system mes­
sage (for example, from the voice recognition
system) con be adjusted directly while the sound
is playing using the On/Off knob.
-Increasing or decreasing the volume: turn the
On/Off
knob ® c::;, page 135, fig. 153 to the
right or left.
- Muting or pausing : press the On/Off knob@
,:::;,page 135, fig. 153 briefly . Or: turn the On/
Off knob to the left . ..,.
135

u. co .... N
" N .... 0 0 :c ' -Traffic reports are shown in the drive r infor ­
mation system disp lay and can be selected
by turning the left thumbwheel.
Other settings
~ Select : IINFO I button> Settings control button .
Traffic report
Traffic informati on that refers to an active desti­
nation is given as a spoken announcement when
t he function is sw itched
On.
Troubleshooting
Applies to: vehicles with navigation system
Problem Solution Navigation
Music volume during nav. prompts
T urn the On/Off knob to the rig ht or l eft to the
adjust the vol ume during traffic reports .
Favorites that were a lready stor -
The favorites in th e pub lic MMI directory are visible for a ll users in
ed are no longer displayed.
the vehicle.
If a cell phone is connected, both the favorites from the private
d irectory and the favorites stored as public are displayed.
If you want to make a favorite available for al l users, it must be
stored in the public MM I directory. A favorite in the pr ivate di rec-
tory must be marked as one of the
Shared contacts if you want it
to be ava ilable for a ll users .
177

lL t:0 ....
"' ......
"' .... 0 0 :c ' ~ ALWA YS adjust you r sp eed to road , traffic and
weather conditions.
~ Take frequent breaks on long trips. Do not drive
for more than two hours at a stretch.
~ Do NOT drive when you are tired, under pres­
s ure or when you are stressed .
A WARNING
Impaired driv ing safety increases the risk of
ser ious personal inj ury and death whenever a
vehicle is being used .
Correct passenger
seating positions
Proper seating position for the driver
The proper driver sea ting po sit ion is impor tan t
for safe, relaxed driving .
Fig. 217 Correc t seat ing posit ion
F or your own s afety and to reduce the risk of in ­
jury in the event of an accident, we recommend
that you adjust the driver 's seat to the following
position :
~ Adjust the dr iver's seat so tha t you can easily
push the pedals all the way to the f loor wh ile
keeping your knee(s) s light ly bent
c:!;> _& .
~ Adjust the ang le of the seatback so that it is in
an upright position so that your back comes in
full contact w ith it when you drive.
~ Adjust the steering wheel so that there is a dis­
tance of at least 10 inches (25 cm) between the
stee ring wheel and you r breast bone
<:!;> fig . 217 .
If no t possib le, see you r autho riz ed Aud i dea l­
ersh ip about adaptive equipment .
Driving safety
~ Adjust the steering wheel so that the steering
wheel and airbag
cover points at your chest and
not at yo ur face.
~ Grasp the top of the steering wheel with you r
elbow(s) slightly bent.
~ Adjust the head restraint so the upper edge is
as
even as possible w ith the top of your head . If
that is not possible, t ry to adjust the head re­
s traint so that it is as close to this posit ion as
possible .
~ Fasten and wear safety belts correctly
c:!;> page 2 2 2.
~ Always keep both feet in the footwell so that
you are in contro l of the ve hicle at a ll times .
F or detailed information on how to adj ust the
driver's seat,
see r:!;> page 54 .
A WARNING
-
Drivers who are unbelted, out of position or
too close to the airbag can be se riously in­
jured by an airbag as it unfolds. To help re­ duce the risk of serious personal injury:
- Always ad just the driver's seat and the
steer ing whee l so that there are at least
10 inc hes (25 cm) between you r breastbone
and the steer ing wheel.
- Always ad just the d river's seat and the
steer ing wheel so that there are at least
4 inches (10 cm) between the knees and the
lowe r part of the instrument panel.
- Always hold the steering w heel on the out­
side of the steering wheel r im with yo ur
hands at the 9 o'clock and 3 o'clock posi­
tions to help reduce the risk of personal in­
jury if the driver's airbag inflates.
- N ever hold the stee ring wheel at the
12 o' clock position o r wi th yo ur hands at
other posi tions i nside the steer ing whee l
rim or on the steering wheel hub . Holding
the steering wheel the wrong way can cause
serio us injuries to the hands, arms and head
if the dr iver's airbag inf lates .
- Pointing the steering wheel toward your
face decreases the abi lity of the supplemen­
tal driver's airbag to protect you in a coll i-
sion .
..,
209

Audi pre sense Preventative passenger
protection
Applies to: ve hicles with Audi pre sense
Pre sense can initiate steps to protect vehicle oc­
cupants in certain dangerous situations. The
functions descr ibed are available depending on
veh icle equ ipment:
Audi pre sense ba sic
The fo llowing functions can be triggered in cer­
tain driving situat ions:
- Tightening of the safety belts (for examp le,
during heavy braking) : the front safety belts
have reversible belt tensioners. If a collision
does not occur, the safety belts loosen slightly
and are ready to trigger again.
- Closing the w indows and the sunroof*
The function of the pre sense basic is activated at
a speed of 20 mph (30 km/h) or hig her . The de­
p loyment time is adapted in the drive select dy ­
namic mode .
Audi pre se ns e front ( vehicl es with adapti ve
cruise contr ol* }
Pre sense front contains the f unctions of pre
sense basic. In add ition, the likelihood of a rear­
end collis ion with the vehicle ahead is also calcu­
lated, within the limits of the system . If the risk
of a collision is detected, t he following functions
can t rigger:
- Audi braking guard
¢page 100
-Tensioning of the safety belts
- Closing the windows and the sunroof *
Audi pre sense rear (vehicles with side
a ss is t*)
Pre sense rear contains t he functions of pre sense
basic. In addition, the like lihood of a rear-end
col lision from t he vehicle behind is a lso ca lculat­
ed, w ith in the lim its of the system. If the risk of a
collis ion is detected, the following functions can
~ tr igger :
.... N
~ -Tensioning of the safety belts
g -Closing the windows and the sunroof *
:c ' Audi pre sense
-Adjusting the seats : the settings for the powe r
head restrains, the upper sections of the backr ­
ests and the pne umatic side bolsters* change
on the front seats and the outer rear seats*. If
a co llision does not occur, the seat sett ings
that were previously used are restored .
Audi pre sen se plus
Pre sense plus contains the f unctions of pre
sense front and pre sense rear .
Error messag e
Audi pre sens e: Unavailable
Preventative passenger protect ion is not ava ila­
ble. Drive to an autho rized Aud i deale r or author­
ized Audi Se rvice Facility immed iately to have the
malfunction corrected.
& WARNING
--
Pr e sense cannot overcome natural p hys ica l
l aws .
It is a system designed to assist and it
cannot prevent a co llision. Do not let the in­
creased safety provided tempt you into tak ing
risks. This could inc rease your r isk of a colli ­
sion.
- The system can dep loy incorrectly.
- Please note that t he sensors do not a lways
detect a ll objects. T his increases the r isk of
a co llision.
- Pre sense does not react to peop le or ani­
mals or objects that are cross ing the vehi­
cle's path or are difficu lt to detect
¢page 95.
- Reflective objects such as gua rd ra ils or the
entrance to a tunnel, heavy ra in and ice can
affect the funct io n of the radar sensors and
the system's ab ility to detect a collision risk.
@ Note
The sensors can be d isplaced by impacts or
damage to the bumper, wheel housi ng and
underbody. Pre sense can be impaired by this .
Have an autho rized Aud i deale r or au tho rized
A udi Se rvice Fac ility check the ir funct io n.
.,.
217

Safe ty belts
-Failure to pay attention to the warning light
that come on, could lead to personal injury.
Why use safety belts?
Frontal collisions and the law of physics
Frontal crashes create very strong forces for peo­
ple riding in vehicles.
F ig. 220 Unbe lted occupants in a vehicle heading for a wall
Fig . 221 The veh icle crashes into the wall
The physical principles are simple . Both the vehi­
cle and the passengers possess energy which var­
ies with vehicle speed and body weight. Engi­
neers call this energy "kinet ic energy."
The higher the speed of the vehicle and the greater the vehicle 's we ight, the more energy
that has to be "absorbed" in the crash.
Vehicle speed is the most significant fac tor. If
the speed doubles from 15 to 30 mph (25 to SO
km/h), the energy increases 4 times!
Because the passengers of th is veh icle are not us­
ing safety
belts<=> fig. 220, they will keep mov ing
at the same speed the ve hicle was moving just
before the crash, u nti l something stops them -
here, the wall<=>
fig. 221.
220
The same principles apply to people s itting in a
vehicle that is involved in a fronta l collision. Even
at city speeds of 20 to 30 mph (30 to 50 km/h),
the forces acting on the body can reach one ton
(2,000 lbs, or 1,000 kg) or more. At greater
speeds, these forces are even higher.
People who do not use safety belts are a lso not
attached to their vehicle. In a frontal coll is ion
they will also keep mov ing forward at the speed
their vehicle was travelling just befo re the crash.
Of course, the laws of physics don't just apply to
frontal collisions, they determine what happens
i n a ll kinds of accide nts and co lli sions.
What happens to occupants not wearing
safety belts?
In crashes unbelted occupants cannot stop
themselves from flying forward and being in­
jured or killed. Always wear your safety belts!
Fig. 222 A driver not wearing a safety belt is violently
thrown forward
F ig. 223 A rear passenger not wearing a safety belt will fly
forwa rd a nd strike the driver
Unbelted occ upants are not ab le to res ist the tre­
mendous forces of impact by holding tight or
braci ng themselves . Without the benefit of safe ­
ty restraint systems, the unrestra ined occupant
will slam violently into the steering wheel,
liJJ,,

u. co .... N
" N .... 0 0 :c ' Airbag system Important information
Importance of wearing safety belts and
sitting properly
Airbags are only suppl em ental restraints . For
airbags to do their job, occupants must always
properly wear their safety belts and be in a prop­
er seating position .
For your safety and the safety of your passen­
ge rs, before dr iving off, always:
.,. Adjust the dr iver's seat and steer ing wheel
prope rly~ page 209,
.,. Adjust the fro nt passenge r's seat prope rly
~page 54,
.,. We ar safety bel ts p roperly~ page 221,
.. Always properly use the proper c hild restraint
to protect chi ld ren
r=>page 249.
In a coll is io n, a irbags mus t infla te wi thin t he
b link of an eye and with consi derab le force . The
supp lemental airbags can cause injuries if the
d river or the front seat passenger is not seated
properly. Therefore in order to he lp the airbag to
do its job, it is important, both as a dr iver and as
a passenger to sit properly at a ll times.
By keeping room between yo ur body and t he
steer ing whee l and the front of the passenger
compa rtment, the airbag can inflate fully and
comp lete ly and prov ide supplemental protect io n
in certa in frontal coll is ions
r=> page 209, Correct
passenger seating positions.
Fo r de tails on the
operat ion of the seat ad justment cont rols
r=>page5 4.
It's especially important that children a re proper­
ly restra ined
r=>page 249.
There is a lot that the driver and the passengers
can and must do to help the ind ividual safety fea­
tures installed in your Audi work togethe r as a
sys tem.
Proper seating posit ion is important so that the
front airbag on the driver side can do its job. If
you have a physical impairment o r cond it ion that
p revents yo u from s itting properly on the driver
seat with the safety be lt prope rly fastened and
Airbag syste m
reaching the peda ls, o r if yo u have concerns w it h
r egard to the functio n or operatio n of the Ad ­
vanced Airbag System, please co ntact you r au­
thorized Audi dea le r or q ua lified workshop, or
ca ll Audi Customer Re lations at 1-800-822-2834
for poss ible modifications to your vehicle .
When the a irbag system dep loys, a gas generator
will fill the airbags, break open the padded cov­ ers, and inflate betwee n the stee ring wheel and
the driver and between the inst rument panel and
the fron t passenger . The a irbags w il l deflate im­
med iate ly after deployment so that the front oc­
c u pants can see t hrough the winds hield aga in
wi thou t interru ption.
All of t his takes place in the bl ink of an eye, so
fast that many peop le don't even real ize that the
airbags have deployed. The airbags a lso infla te
wi th a g re at deal of for ce and n othing should be
i n the ir way when t hey dep loy . Front airbags in
combination with properly worn safety belts slow
down and limit the occupant's forward move ­
ment. Together they he lp to prevent t he driver
and front seat passenger from hitting pa rts of
the ins ide of the vehicle whi le red ucing the forces
acting on the occupa nt dur ing the crash. In th is
way they help to red uce the risk of in jury to the
head and uppe r body in the crash. Airbags do no t
pro te ct the arms or the lower pa rts of t he bo dy.
Both front airbags will not inflate in all frontal
collisions. The t rigge ring of t he a irbag system de­
pends on the veh icle decelerat ion rate caused by
t h e coll is io n an d regis tered by the ele ct ronic con ­
t ro l unit. If this rate is be low the refe re nc e v alue
programmed in to the co ntro l unit, t he a irbags
will not be t riggered, even tho ugh t he car may be
badly damaged as a res ult of the co llision. Vehi ­
cle damage, repa ir costs or even the lack of vehi­
cle damage is not necessari ly an indication of
whethe r an a irbag should inflate o r not.
S ince the circumstances will vary cons iderably
between one co llision and another, it is not possi ­
ble to define a range of ve hicle speeds that will
cove r every poss ible kind and angle of impact
t h at w ill always trigge r th e a irbags. Importa nt
factors include, for examp le, the nat ure (hard or
soft) of the object which t he ca r hits, t he angle of
im pact, vehicle speed, etc. The front airbags will
.,.
227

Airbag syste m
also not inflate in side or rear co llisions, or in
ro ll- overs.
Alwa ys rem ember : Airbags will deploy only once,
and on ly in ce rtain k inds of coll is ions. Yo ur safety
be lts are always there to offer protection in those
situations in which airbags are not supposed to
deploy, or when they have already deployed; for
examp le, when your vehicle str ikes or is struck by
another vehicle after the first collision.
This is just one of the reasons why an airbag is a
supplementary restraint and is not a substitute
for a safety belt. The a irbag system works most
effect ively when used with the safety belts.
Therefore, always properly wear your safety belts
r;:;, page 219 .
A WARNING
Sitting too close to the steering wheel o r in­
st rument panel will decrease the effective­
ness of the airbags and will inc rease the risk
of personal injury in a co llision.
- Never sit closer than 1 0 inches ( 25 cm) to
the steering wheel or instrument panel.
- If you cannot sit mo re than 10 inches
( 2 5 cm) from the steering wheel, invest i­
gate whether adap tive equipment may be
available to help yo u reach the pedals and
increase your seating distance from the
steering wheel.
- If you are unrestrained, leaning forward, sit­
ting sideways or out of position in any way,
your risk of in jury is much h igher.
- Yo u will also receive serious injuries and
could even be killed if you are up aga inst the
airbag or too close to it when it inflates
-
even with an Advanced Airbag.
- To reduce the risk of injury when an airbag inflates, a lways wear safety belts properly
c> page 222, Safety belts .
- Always make certain that chi ldren age 12 or
younger always ride in the rear seat. If chil­ dren are not properly restra ined, they may
be severe ly injured or k illed when an airbag
inflates.
- Never let children ride unrestrained or im­ prope rly restrained in the vehicle . Adjust the
front seats properly.
228
-
- Never ride with the back rest recl ined .
-Always sit as far as possible from the steer -
ing wheel or the instrument panel
c>page209.
- Always sit upright with your back against
the backrest of your seat.
- Never p lace your feet on the instrument
panel or on the seat. Always keep both feet
on the floor in front of the seat to help pre­
vent serious injur ies to the legs and hips if
the airbag inflates.
- Never recl ine the front passenger's seat to
transport objects. Items can also move into
the area of the s ide a irbag or the front air­
bag during brak ing or in a sudden maneu­
ver. Objects nea r the airbags can become
pro jecti les and cause injury when an airbag
inflates.
A WARNING
A irbags tha t have deployed in a cr ash m ust be
replaced.
- Use on ly orig inal equipment airbags ap­
proved by Audi and insta lled by
a trained
technician who has the necessary tools and
diagnostic equipment to prope rly replace
any airbag in yo ur vehicle and assure system
effectiveness in a crash.
- Never permit salvaged or recycled airbags to
be installed in your vehicle .
Child restraints on the front seat - some
important things to know
"' Be sure to read the important informat ion and
heed the WARNINGS fo r important deta ils
about ch ild ren and Advanced A irbags
r;:;, page 249 .
Even thoug h your veh icle is equ ipped w it h an Ad ­
vanced Airbag Sys tem, make certa in that a ll chil­
dre n, espec ia lly those 12 yea rs and younger, al­
ways ride i n the b ack seat prope rly res train ed fo r
t h eir age and size. The ai rbag on the passenger
s ide makes t he front seat a potentia lly dange rous
place for a child to ride . The front seat is not the
safest p lace for a c hild in a forward-fac ing c hild
.,.