2018 AUDI A8 height

Safe ty belts
Pregnant women must also be correctly
restrained
The best way to protect the fetus is to make sure
that expectant mothers always wear safety belts
corre ctly
-throughout the pregnancy.
F ig. 227 Safety belt pos ition during pregnancy
To prov ide max imum protection, safety belts
must always be posit ioned correctly on the wear­
er's body
¢ page 223 .
~ Adjust the front seat and head restraint cor­
rectly¢ page 54, Seats and storage.
~ Pull the safety belt evenly across the chest so
that it sits as low as possible on the pelv is and
there is no press ure on the abdomen
¢fig. 227, ~ .&_ .
~ Inse rt the tongue into the cor rect buckle of
yo ur seat until you hea r it latch secure ly
¢ page 222, fig. 225 .
~ Pull on the be lt to make sure that it is securely
l atched in the buck le .
A WARNING
Improperly pos it ioned safety belts can cause
ser ious persona l injury in an accident.
- Expectant mothers must a lways wear the
lap portion of the safety belt as low as pos­
sible across the pelvis and below the round­ ing of the abdomen.
- Always read and heed all WARNINGS and
other important
information ¢.&. in Fasten­
ing safety belts on page 223.
224
Unfastening safety belts
Unbuckle the safety belt with the red release
button only ofter the vehicle hos stopped.
.,,
Fig . 22 8 Releasing the tongue from the buckle
~ Push the red re lease but ton on the buck le
¢
fig. 228. The belt tongue w ill spring out of
the buck le
¢ ,A .
~ Let the belt wind up on the retractor as yo u
guide the belt tongue to its stowed position.
A WARNING
Never unfasten safety be lt wh ile the vehicle is
moving . Do ing so will increase your r isk of be­
ing inj ured or killed.
Adjusting safety belt height
You con adjust the height of the driver's and
front passenger's safety belts.
The safety belt he ight ad justers for the front
seats can be used to adjust the height of the
sho ulder portion of the safety belt so that it is
pos it ione d correct ly.
0 ,._ N 0 :i:
"' m
The shoulder be lt shou ld lie as close to the center
of the collar bone as poss ible and shou ld fit well
o n the body
¢ .&. in Safety belt position on
page 223 .
Power safety belt he ight adjustment*
You can adjust the he ight of the safety be lts us­
ing the multif unction button on the driver or
front passenger seat
¢ page 54 .

u. co .... N
" N .... 0 0 :c ' A WARNING
Always read and heed all WARNINGS and oth­er important
i nformation¢ page 221.
(D Tips
You can a lso adjust the height of the front
seats to change the position of the safety
be lts.
Improperly worn safety belts
Incorrectly positioned safety belts can cause se ­
vere injuries.
Wearing safety be lts improperly can cause seri ­
ous injury or death. Safety belts can on ly work
when they are correctly pos itioned on the body.
Improper seating positions reduce the effect ive­
ness of safety belts and will even increase the
risk of injury and death by mov ing the safety belt
to cr it ica l areas of the body. Improper seating
positions also increase the r isk of serious i njur y
a n d death when an airbag deploys a nd str ikes an
occupant who is not in the correct seating pos i­
tion . A driver is responsible for the safety of a ll
ve hicle occupants and especia lly for children.
Therefore:
.. Never permit anyone to ass ume an incorrect
sitting position in the vehicle w hil e trave ling
¢A .
A WARNING
Improperly worn safety be lts increase the risk
of serious personal injury and death whenever
a vehicle is be ing used.
- Always ma ke sure that a ll vehicle occupants
are correctly restra ined and stay i n a correct
sea ting pos it ion whenever the ve hicle is be­
ing used .
- Always read and heed all WARNINGS and
ot her important information
¢ page 221.
Safet y be lts
Belt tensioners
How safety belt pretensioners work
Rev ersible safety belt tension ers
T he following fu nctions a re available when safety
belts w it h reversib le safety belt tensione rs a re
faste ned:
- Automatic tens ioners: at the start of a drive,
the safety belts automatically ad just to the
passenger after a certain time period or veh icle
speed. To switch the a utomat ic tens ioners off,
select the following in t he M MI:
!CARI fu nction
button
> Car systems > Vehicle settings >
Seat s > Driver 's seat or Passenger 's seat > Au­
tomatic belt tensioner
> Off .
- In ce rtain driving situations, the safety belts
may tighten wit h a reve rsib le tensioning func ­
tion
r=;, page 217.
- The safety be lts may also tighten with this re -
versible tensioning function in minor collisions.
Pyrotechnic safety belt pretensioners
Seat be lts wi th py ro technic s afety be lt preten ­
s io ners are tensioned au toma tically i n seve re col ­
li sions, depending on t he circumstances . This
helps to reduce the forward motion of the occu ­
pants .
A WARNING
= -
- It is poss ib le for the pretensioners to dep loy
incor rectly.
- Any work on the tens ioner system or remov­
al and installation of system components
for other repairs m ust be performed by a
qualified workshop.
- The pyrotechnic system can only p rovide
protection fo r one collision. If the py rotech­
n ic pretens ioners deploy, the pretensioning
system must be rep laced.
(D Tips
- A fine dust is re leased when the pyrotechnic
safety belt pretensioners dep loy. Th is is no r­
ma l and is not caused by a f ire in t he ve hi­
cle.
- The relevant safety requirements must be
observed when the vehicle or componen ts
225

lL t:0 ....
"' ......
"' .... 0 0 :c ' @ For the sake of the environment
Undeployed airbag modu les and pretension­
ers might be classified as Perch lorate Materi­
al· special handling may apply, see
www.dtsc .ca.gov/hazardouswaste/
perchlorate. When the vehicle or parts of the
restraint system including a irbag modules
and safety belts with p retensioners are scrap·
ped, a ll applicable laws and regu lations must
be observed. Your a uthorized Audi dealer is
familiar w ith these requirements and we rec­
ommend that you have yo ur dealer perform
this service for you .
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System pe rforms in a crash. For examp le, using tire-r im
comb ina tions not approved by Audi, lowering the
veh icle, chang ing the s tiffness of the suspens ion,
including the springs, suspension struts, shock
absorbers etc . can change the forces that are
measured by the airbag sensors and sent to the
e lectronic contro l unit . Some suspension changes
can, for example, increase the force levels meas­
ured by the sensors and make the airbag system
deploy in crashes in wh ich it would not deploy if
the changes had not been made . Other ki nds of
changes may reduce the fo rce levels measured by
the sensors and preven t the airbag from deploy­
ing when i t should.
A WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced Airbag performance and in­
crease the risk of serious personal injury in a
crash.
-Never install suspens ion components that
do not have the same performance charac­
teristics as the components originally instal­
led on your veh icle.
-Never use tire-rim combinations that have
not been approved by Audi.
Airbag system
A WARNING
Items stored between the safety belt buckle
and the center console can cause the sensors i n the buckle to send the w rong information
to the electronic control modu le and prevent
the Advanced A irbag System from wo rking
p roperly.
- Always make sure that nothing can interfe re
with the safety belt buckles and that they
are not obstructed.
Knee airbags
Description of knee airbags
The knee airbag system can provide supplemen­
tal protection to properly restrained front seat
occupants.
F ig . 233 Dr ive r's knee airbag
T he driver knee airbag is in the ins trument panel
u nderneath the steer ing
whee l~ fig. 233, the
airbag fo r the passe nger is at abou t the same
height in the instr ument pane l underneath the
glove compartment.
The knee airbag offers add itional protection to
t h e driver 's and passenger's knees and uppe r and
lower thigh areas and supplements the protec­
t ion prov ided by the safety be lts .
If the front airbags deploy, the knee airbags also
deploy in frontal collis ions when the deployment
threshold stored in the control unit is met
~ page 235, More important things to know
about front airbags.
In add ition to their normal sa fety f unct ion, safe-
ty be lts he lp keep the driver or front passenge r in
..,.
241

lL t:0 ....
'"" " '"" .... 0 0 :c ' place c:> page 211. Driving with head
restraints that are not properly adjusted in­
creases the risk of serious or fatal neck in­
jury dramatically.
- Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used
c:> page 219, Safety belts,
¢ page 22 7, Airbag system and
¢ page 249, Important information.
A WARNING
If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety and
well-being require that the following special
precautions be taken:
- Make sure the forward-facing seat has been
designed and certified by its manufacturer
for use on a front seat with a passenger
front and side airbag .
- Always follow the manufacturer's instruc­
tions provided with the child safety seat or infant carrier.
- Always move the front passenger seat to
the highest position in the up and down ad­
justment range and move it back to the
rearmost position in the seat's fore and aft
adjustment range, as far away from the air­ bag as possible, before installing the for­
ward-facing child restraint.
-Always make sure that the safety belt upper anchorage is behind the child restraint and
not next to or in front of the child restraint
so that the safety belt will be properly posi­
tioned.
- Always make sure that nothing prevents the
front passenger's seat from being moved to
the rearmost position in its fore and aft ad­
justment range.
-Always make sure the backrest is in an up­
right position.
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the time
whenever the ignition is switched on.
- If the light does not stay on, perform the
checks
c:> page 2 3 7, Monitoring the Ad­
vanced Airbag System.
Child safety
- Take the child restraint off the front passen­
ger seat and install it properly at one of the
rear seat positions if the
PASSENGER AIR
BAG OFF
light does not stay on whenever
the ignition is switched on.
Booster seats and safety belts
Properly used booster seats can help protect
children weighing between about 40 lbs. and 80
lbs . (18 kg and 36 kg) who are less than 4
ft . 9
in . (57 inches/1 .45 meters) tall.
Fig. 243 Rear seat: c hild properly restrain ed in a boos ter
seat
The vehicle 's safety belts alone will not fit most
children until they are at least 4 ft . 9 in. (57 in­
ches/1.45 meters) tall and weigh about 80 lbs.
(36 kg). Booster seats raise these children up so
that the safety belt will pass properly over the
stronger parts of their bodies and the safety belt
can help protect them in a crash.
" Do not use the convertible locking retractor
when using the vehicle's safety belt to restrain
a child on a booster seat.
"The shoulder belt must lie as close to the cen­
ter of the child's collar bone as possible and
must lie flat and snug on the upper body. It
must never lie across the throat or neck. The
lap belt must lie across the pelvis and never
across the stomach or abdomen. Make sure the
belt lies flat and snug . Pull on the belt to tight­
en if necessary.
"If you must transport an older child in a boos­
ter seat on the front passenger seat, you can
use the safety belt height adjustment to help
adjust the shoulder portion properly.
" Secure unused safety belts on the rear seat
c:> page254.
257

Child sa fet y
The lower anchorage attachment points are lo ­
cated on the rear seats between th e seatback and
the seat cushion. Special guidance fixtures in­
crease the convenience of the lower anchorages
and help protect the seat material from possible
damage when instal ling ch ild restraints.
In stall ing the guidance fi xtu re s
.,. Push down on the seat cushion so that the low ­
er anchorages are visible .
.,. Hold the guidance fixture with the part number
facing downward and push it in the d irection of
the arrow onto the anchorage
c> fig . 248 .
.,. Make su re that each of the two guida nce fix­
tures per seat snaps i nto place.
Remo ving th e guidance fixtures
.,. Remove the ch ild restraint acco rding the ch ild
restra int manufacturer's instructions.
.,. Push down on the seat cushion so that the low­
er anchorages a re v is ible .
.,. Pull off the g uidance fixtures from the lower
an chorages.
.,. A lways remove the guidan ce fix tures and keep
them in a safe p lace when not in use .
You may find it easier to install ch ild restrain ts
eq uipped w ith hooks a ttached to straps withou t
the guidance f ix tu res in place . If th is is the case,
remove the g uidance fixtures by pu lling them off
the anchorages . However, the guidance f ixtures
can help you to locate the
LA TCH anchorages.
A WARNING
Improper use of tether anchorages or lower
anchorages can cause serious personal injury
in a crash .
- Always carefully follow the child restra int
manufacturer's instruct io ns for proper in­
stallation and use of child restra int systems .
- Never use the
LATCH or tether anchorages
to attach safety belts or other kinds of occu ­
pant restrai nts .
- Child restra int tether attachments and low­
er attachments are only des igned to secure
a c hild restraint that has been equ ipped to
use these anchorages .
264
"
-Tet her anchorages a nd lower anchorages
are designed to withstand only those loads imposed by correct ly fitted child restraints.
Under no circumstances can they be used
safe ly for adult or ch ild safety bel ts or har­
nesses .
- Never mount more than one child restraint to a sing le tet her or to a lower anchorage
point . Attaching two child restra ints to a
sing le anchorage poin t ca n cause the a n­
chorage to fail and c ause ser io us perso nal
in jury in a crash .
(D Note
- Remove the guidance fixt ures before fold­
ing the re ar seatba ck to preven t damag ing
the seat c ushion .
- T o attach the c hild rest raint se curely, the
s ea t must be moved to the farthest rea r po­
sit io n, the sea t height se t to t he lowest po­
sitio n and the hea d rest raint must be a d­
justed to the vertical position.
-I f you leave t he gu idance fixture s installed
for several days, they could leave a mark on
the u pholstery on the seat cushion and
backrest in the area that the guidance fix­
t u res were insta lled. T he upholstery wo uld
also be perma nently st retched around the
guidance fixt ures. This applies especially to
leather seats .
Installing a child restra int w ith LATCH
lower anchorages
Whenever you install a child restraint always fol­
low the child res traint manufa cturer's instru c­
tions.
Fig. 249 Lower ancho rages : pro per m ount ing

lL t:0 ....
"' ......
"' .... 0 0 :c ' Mounting
.,. Make sure the seatback of the rear seat bench
is in the upright position and securely latched
in place .
... Attach both hook -on connectors with the spring
catch release on the child safety seat onto the
LATCH lower anchorage so that the connectors
lock into place
¢ fig. 249.
... Pull on the connector attachments to make
sure they are properly attached to the LA TC H
l ower anchorage.
.,. Pull straps tight fo llowing the child restra int
manufacturer's instructions.
Releasing
... Loosen the tension on the straps following the
child restraint manufacturer's instruct ions .
.,. Depress the spring cat ches to release the an­
chorage hooks from the lower anchorages.
Remember: Use tether straps to help keep the
chi ld restraint firm ly in place .
.&, WARNING
Improper use of the LATCH sys tem can in­
crease the risk of serious personal injury and
death in an acc ident .
- T hese anchors were deve loped only for child
safety seats using the "LATCH" system.
- Never attac h other child safety seats, belts
o r othe r ob jects to these anchors.
- Always ma ke sure that you hear a click when
latch ing the seat in place.
If you do not hear
a click the seat is not secure and could fly
f orward and hit the interior o f the vehicle,
or be ejected from the vehicle .
.&, WARNING
Improper installation of child restraints will
increase the r isk of injury in an acc ident.
- Always follow the child restra int system
man ufactu rer's instruct ions for proper in­
sta llation of the child restraint system and
proper use of tether straps as well as the
lower anchorages or safety be lts in your ve­
hicle .
- Always read and heed the important infor­
mation and WARNINGS about child safety
Ch ild s afe ty
and the installat ion of child restraint sys­
tems
¢ page 249, Child safety .
(D Note
On vehicles with power adjustable rear seats*
some criteria must be observed when attach­ ing the child restraint using the
LATCH sys­
tem:
- To attach the child restraint securely, the
seat must be moved to the farthest rear po­
sition, the seat height set to the lowest po­
sition and the head restraint must be ad­
justed to the vertical position.
- If a child safety seat is attached to one of
the rear seats, th is seat must not be adjust­
ed using the power controls under any c ir­
cumstances. The
Entry as sis tance for this
sea t must also be deactivated in the MM I
¢ page 58. The child safety seat as well as
the rear seat can be damaged by the adjust­ ment process.
Tether anchors and tether straps
F ig. 250 Tether ancho rs: recess flaps behin d the rear seat­
backs
The tether anchors for the two* /three rear seat­
ing pos it ions are located in recesses in the rear
window
shelf ¢ fig. 250. Vehicles with two rear
seating pos itions* are equipped with two tether
anchors .
A tether is a straight or V-shaped strap that at­
taches the top part of a ch ild restraint to special
anchorage points in the veh icle.
The purpose of the tether is to reduce the for­
ward movement of the chi ld restraint in a crash,
in order to help reduce the risk of head injury
..,_
265

Wheels
(D Tires for passenger vehicles
(if applicable)
"P" indicates a tire for a passenger
vehicle. "T" indicates a tire desig­
nated for temporary use.
@ Nominal width
Nominal width of the tire be­
tween the sidewalls in millime­
ters. In general: the larger the number, the wider the tire.
@ Aspect ratio
Height/width ratio expressed as a
percentage.
© Tire construction
R indicates a radial tire.
® Rim diameter
Size of the rim diameter in inches.
@ Load index and speed rating
The load index indicates the tire's
load-carrying capacity.
The speed rating indicates the maximum permitted speed
c> & in
Winter tires on page 298.
"EXTRA LOAD", "xl" or "RF" indi­
cates that the tire is reinforced or
is an Extra Load tire.
Speed rat-
Maximum permitted speed
ing
p
up to 93 mph (150 km/h)
Q up to 99 mph (160 km/h)
284
Speed rat- Maximum permitted speed
ing
R up to 106 mph (170 km/h)
s up to 110 mph (180 km/h)
T up to 1 18 mph (190 km/h)
u up to 124 mph (200 km/h)
H up to 130 mph (210 km/h)
V up to 149 mph (240 km/h) al
z above 149 mph (240 km/h)a)
w up to 168 mph (270 km/h) al
y up to 186 mph (300 km/h)a)
a) For tires above 149 mph (240 km/h),
tire manufacturers sometimes use the
code
"ZR".
0 US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap­
pear on the inner side of the tire):
DOT ... 2217 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2017.
@ Audi Original Tires
Audi Original equipment tires
with the designation "AO" have
been specially matched to your
Audi. When used correctly, these
tires meet the highest standards
for safety and handling. An au­
thorized Audi dealer or author­
ized Audi Service Facility will be
able to provide you with more in­
formation.

....
"' -N .... N
-0
0
J: ..
® Mud and snow capability
"M/S" or "M+S" indicates the tire
has properties making it suitable
to drive in mud or
snow .~ indi­
cates a winter tire .
@ Composition of the tire cord
and m aterials
The number of plies indicates the
number of rubberized fabric lay­
ers in the tire. In general : the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire . These include
steel, nylon, polyester and other
materials .
@Maximum permitted load
This number indicates the maxi­
mum load in kilograms and
pounds that the tire can carry .
@Uniform ti re quality grade
standards for treadwear,
traction and temperature resistance
Treadwear , traction and tempera­
ture
ranges¢ page 299 .
@ Running direction
The arrows indicate the running
direction of unidirectional tires .
You must always follow the speci- fied running direction
¢
page 319.
@ Maximum permitted
inflation p ressure
Wh eel s
This number indicates the maxi­
mum pressure to which a tire can
be inflated under normal operat­
ing conditions.
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power steer­
ing, power brakes, power win ­
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in­
stalled equipment (whether in­
stalled or not) .
Aspect ratio
means the ratio of the height to
the width of the tire in percent .
Numbers of 55 or lower indicate a
low sidewall for improved steer­
ing response and better overall
handling on dry pavement .
285