95 RON AUDI A8 2018 Owners Manual

Wheels
-Have an authorized Audi dealer or authorized Audi Service Facili­
ty check the wheel alignment if
there is unusual wear .
-Have the wheels rebalanced if an imbalance is causing noticeab le
vibration in the steering wheel.
If you do not, the tires and other
vehicle components could wear more qu ickly .
Treadwear indicator
Original equipment t ires contain
treadwear indicators in the tread pattern, which are bars that are 1/16 in (1 .6 mm) high and are
spaced evenly around the ti re per­
pendicular to the running direc­
tion. The letters
"TWI" or trian ­
gles on the tire sidewall indicate
the location of the treadwear in­
dicators .
T he tires have reached the mini­
mum tread depth
l) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones
c:::> ,.1. .
Tire rotation
Rotating the tires regularly is rec ­
ommended to ensure the tires
1> Obey any applicable regulations in your
country.
2 92
wear evenly . To rotate the tires,
install the tires from the rear ax le
on the front axle and vice versa .
This will allow the tires to have app roximately the same lengt h of
service life .
F or unidirectional tires , make
sure the ti res are installed accord­
ing to the running direction indi­
cated on the tire sidewall
c:::>page 319 .
Hidden damage
Damage to tires and rims can of ­
ten occur in locations that are hidden. Unusual vibrations in the
vehicle or pulling to one side may indicate that there is tire damage.
Reduce your speed immediately .
Check the tires for damage . If no
damage is visible from the out ­
side , drive slow ly and caref ully to
the nearest authorized Audi deal­ er or authorized Audi Service Fa­
cility to have the vehicle inspect­
ed .
& WARNIN G ~
Tread that has worn too low or
different tread depths on the
tires can reduce driving safety.
11>

Wheels
&,. 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 B­ pillar, always follow the specifica-
294
negative effect on driving and
braking behavior, which in­
creases the risk of an accident.
@ 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 B-pillar label
c:::> page 293, fig. 266.
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
.,..

tires according to the load and
the size of the tires installed.
Wheels
Tire pressure
Model/ Tire designation Normal load Maximum load
Engine (up to
2*/3 people)al
front
rear front rear
PSI kPA PSI kPA PSI kPA PSI kPA
A8/A8 L: 235/55 Rl8 104H
35 24
0
30 210
36 250
38 260
3.0L
255/45 Rl9 104H 35 240
30 210 36 250 38 260
6 cylinders 265/40 R20 104H 35 24
0
30 21
0
36 2
50
38 26
0
265/40 R20 104V 35 240
30 210 33 230 35 240
265/35 R21 101 Y 38 260
35 240
36 250
38 2
60
275/35 R21103Y 35 240
30 210 36 250 35 240
A8/A8 L: 235/55 Rl8 104H 36 250 30 210 38 260 38 2 60
4.0L
255/45 Rl9 104H 36 250 30 210 38 260 38 260
8 cylinders 265/40 R20 104H 36 250 30 210 38 260 38 260
265/40 R20 104V 36 250 30 210 35 2
40
35 2
40
275/35 R21 103V 36 250 30 210 38 260 38 260
58: 265/40 R20 104V 36 25 0 30 210 3 9 27
0
38 260
4.0L
265/35 R21101 Y 39 270 33 230 44 300 42 290
8 cylinders 275/35 R21 103V 36 250 30 210 44
300 42
290
58 plus: 265/40 R20 104V 38 260 32 220 39 270 38 260
4.0L
275/35 R21 103V
8
cylinders 45 310 39 270 49 340 48 330
a ) Vehicles with 4 seating positions: two people in the front, Vehicles with 5 seating
positions:
two people in the front, one person in the rear
A WARNING
Please note the important safe­
ty precautions regarding tire pressure
c:::> page 293 and load
limits
c:::> page 295.
Tires and vehicle load limits
There are limits to the amount of
~ load or weight that any vehicle that
is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al­
so damage important parts of the
vehicle and can lead to sudden
tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash.
N
~ and any tire can carry. A vehicle
0 0 :c ' Your safety and that of your pas­
sengers also depends on making
..,
295

Wheels
the available cargo and lug­gage load capacity of your vehi­
cle.
.,.Check the tire sidewall
(¢ page 283, fig. 264) to deter­
mine the designated load rating
for a specific tire.
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easily .
Rims
Rims with a bolted rim ring* or with bolted wheel
covers* consist of multiple pieces . These compo­
nents were bolted together using special bolts
and a special procedure. You must not repair or
disassemble
them £:=?.&. .
A WARNING
Wheel bolts that are tightened or repaired in­
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct tightening specifi­
cation, see
¢page 314.
- Always keep the wheel bolts and the
threads in the wheel hub clean and free of grease.
- Only use wheel bolts that fit the rim.
- Always have damaged rims repaired by an
authorized Audi dealer or authorized Audi
Service Facility. Never repair or disassemble
rims yourself, because this increases the risk
of an accident .
Winter tires
Winter tires significantly improve the vehicle's
handling when driving in winter conditions. Be­
cause of their construction (width, compound,
tread pattern) , summer tires provide less trac­
tion on ice and snow.
298
.. Use winter tires on all four wheels .
.. Only use winter tires that are approved for your
vehicle.
.. Please note that the maximum permitted
speed may be lower with winter
tires¢ _&.. An
authorized Audi dealer or authorized Audi Serv ­
ice Facility can inform you about the maximum
permitted speed for your tires .
.,. Check the tire pressure after installing wheels
¢page 293 .
The effectiveness of winter tires is reduced great­
ly when the tread is worn down to a depth of
0.157 in (4 mm). The characteristics of winter
tires also decrease greatly as the tire ages , re­
gardless of the remaining tread.
A WARNING
- Never drive faster than the maximum per­
mitted speed for your tires. This could cause
the tires to heat up too much. This increases
the risk of an accident because it can cause
the tire to burst .
- Always adapt your driving to the road and
traffic conditions. Drive carefully and reduce
your speed on icy or slippery roads. Even
winter tires can lose traction on black ice .
® For the sake of the environment
Reinstall summer tires at the appropriate
time, because they provide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumption.
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun­
tries where winter tires are required, only
winter tires with the
& symbol may be per­
mitted.
Snow chains
-
Snow chains not only improve the driving in win­
ter road conditions, but also the braking.
.,. Only install snow chains on the front wheels. .,.

u. co .... N
" N .... 0 0 :c ' may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly . Always check the
TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
Description
Applies to: 58 plus
The tire pressure monitoring system monitors
the pressure in the four tires when driving.
The system uses sensors that measure the tem ­
perature and pressure in the tires . The data is
sent from these sensors to the control module by
radio frequency.
The Tire Pressure Monitoring System shows the
current pressures and temperatures of the tires
in the Infota inment system
c:> page 303 . It also
compa res the current tire pressures with the
stored tire press ures and gives a warning in the
driver information system if the tire pressure is
different from what is stored
c:> page 304.
The system does not detect if the stored tire
pressures match the recommended tire pres­
sures.
- Every time the tire pressures change, for exam-
ple when the load in the vehicle changes,
- after replac ing a tire, or
- if wheels with new wheel sensors are used,
you must store the tire pressures again
c:> page 304.
A WARNING
-The tire pressure mon itor ing system assists
the driver in monitoring tire pressures. The
dr iver is responsible for having the tires in­
flated to the correct pressure.
- Do not change the tire pressure when the
temperature of the tire is extremely high.
T his cou ld result in serious damage to the
t ir e and even cause the tire to burst, in­
creasing the risk of an accide nt.
Wheels
-A tire with low pressure flexes more . This
heats the tire up too much. This could cause
the tread to separate and even cause the
tire to burst, increasing the risk of an acci­
dent.
- The Tire Pressure Monitoring System does
not warn you of damage or defects in the
tire construct ion that could cause the tire to
burst, for example. Inspect your tires regu­
larly.
@ For the sake of the environment
Low tire pressure increases fuel consumption
and tire wear.
(D Tips
-The pressure of the spare t ire* is not mon i­
tored.
- If tires are replaced, the sensors/va lves do
not need to be removed or replaced. Just re­
placed the valve stem and, if necessary, the
valve and the whee l electronics . If you have
questions, see an authorized Audi dealer or
authorized Audi Service Facility.
Displaying tire pressures/temperatures
Applies to: 58 plus
Requirement: the ignition must be switched on.
.. Select: the I CAR! funct ion button > Car systems
> Service & control > Tire pressure monitor >
Display tire pressure .
The current tire pressures are shown in green and
yellow numbers in the Infotainment system:
-Green: the current tire pressure and the spec i­
fied tire pressure are approx imately the same .
-Yellow: the current tire pressure is too low
compared to the specified tire pressure .
The specified tire pressure is the last tire pres ­
sure that was stored
c:> page 304 .
Note that the tire pressure also depends on the
temperature of the tire . The tire pressure in­
creases as the engine becomes warmer while
driv ing.
.,.
303

u. co ..... N
" N ..... 0 0 :c ' also blinks for approximately one minutes each
time the ignition is switched on . The tire pressure
monitoring system cannot be selected in the In­
fotainment system. The following are examples
of situations that could cause a malfunction:
- If the message appears at the end of the adap­
tation phase, the system cannot detect the
wheels installed on the vehicle . This may result
from one or more wheels being installed with­ out wheel sensors or with incompatible wheel
sensors .
- A wheel sensor or another component has
failed .
- Using snow chains can affect the function of
the system because of the shielding effect of
the chains .
- The tire pressure monitoring system is not
available due to a malfunction .
- Transmitters with the same frequency, such as
headphones or remote-controlled devices, may
cause a temporary system malfunction due to
the strong e lectromagnetic field .
The
@m indicator light turns off once the Tire
Pressure Monitoring System is available again . If
you cannot correct the malfunction and the
mm
indicator light stays on, drive immediately to an
author ized Audi dealer or author ized Audi Service
F acility to have the malfunction repaired.
Wheels
305

Care and cleaning
Care and cleaning
General information
Regular, proper care helps to maintain your vehi­
cle's value. It can also be a requirement when
submitting warranty claims for corrosion damage
and paint defects on the body.
The necessary care products can be obtained
from an authorized Audi dea ler or authorized
Audi Service Facility. Read and follow the instruc ­
tions for use on the packaging.
A WARNING
-Using cleaning and care products incorrectly
can be dangerous to your health.
- Always store clean ing and care products out
of reach of children to reduce the r isk of poi­
sonin g.
@ For the sake of the environment
- Preferab ly purchase environmenta lly-friend­
l y cleaning products.
- Do not dispose of leftover cleaning and care
products with household trash.
Car washes
The longer that deposits such as insects, bird
droppings, tree sap or road salt remain on the ve­
h icle, the more the surface can be damaged. High
temperatures such as those caused by sunlight
increase the damaging effect.
Before washing, r inse
off heavy deposits with
p lenty of water.
Stubborn deposits such as bird droppings or tree
sap are best removed with plenty of water and a microfiber cloth.
A lso, wash the underside of yo ur vehicle once
road sa lt stops being used for the season .
Pressure washers
When washing your veh icle w ith a pressure wash­
er , al ways fo llow the operating instructions pro­
vided with the press ure washer. This is especially
important in regard to the pressure and spraying
distance. Do not aim the spray directly at the
306
seals on the side windows, doors, lids or the sun­
roof* or at tires, rubber hoses, insulating materi ­
a l, sensors* or camera lenses* . Keep a distance of
at least 16 in (40 cm).
Do not remove snow and ice with a pressure
washer.
Never use cone nozz les or high pressure nozzles.
The water temperature must not be above 140 °F
(60 °C) .
Automatic car washes
Spray off the vehicle before washing.
Make sure that the windows and roof* are closed
and the windshie ld wipers are
off . Follow instruc ­
tions from the car wash operator, especially if
there are accessories attached to your vehicle.
If possible, use car washes that do not have
brushes.
Only use car washes where the vehicle remains
stationary and the washing equipmen t moves
around the vehicle when washing and drying. Car
washes that move the vehicle t hrough the car
wash using a chain are not recommended .
Washing by hand
Clean the vehicl e starting from the top and work­
ing down using a soft sponge or cleaning brush.
Use solvent -free cleaning products.
Washing vehicles with matte finish paint by
hand
To avoid damaging the paint when washing, first
remove dust and large particles from your vehi ­
cle. Insects, grease spots and fingerprints are
best removed with a special cleaner for matte
finish paint .
Apply t he product using a microfiber cloth. To
avoid damaging the paint surface, do not use too
much pressure.
Rinse t he ve hicle thoroughly with wate r. Then
clean using a neutral shampoo and a soft micro ­
fiber clot h.
R inse the vehicl e thoroughly again and let it air
dry. Remove any water residue using a chamois.
..,..

u. co .... N
" N .... 0 0 :c ' & WARNING
-Only wash the vehicle when the ignition is
off and follow the instructions from the car
wash operator to reduce the risk of acci­
dents.
-To reduce the risk of cuts, protect yourself
from sharp metal components when wash­
ing the underbody or the inside of the wheel
housings.
-After washing the vehicle, the braking effect may be delayed due to moisture on the
brake rotors or ice in the winter . This in­
creases the risk of an accident. The brakes
must be dried first with a few careful brake
applications.
@ Note
-If you wash the vehicle in an automatic car
wash, you must fold the exterior mirrors in
to reduce the risk of damage to the mirrors.
Power folding exterior mirrors* must only
be folded in and out using the power folding
function.
-To reduce the risk of paint damage, do not
wash the vehicle in direct sunlight.
-
Care and cleaning
-To reduce the risk of damage, do not wash
the power top with a pressure washer.
-To reduce the risk of damage to the surface,
do not use insect removing sponges, kitchen
sponges or similar items.
-Matte finish painted vehicle components:
-To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
-Never use protective wax. It can destroy
the matte finish effect .
-Do not place any stickers or magnetic
signs on vehicle parts painted with matte
finish paint. The paint could be damaged
when the stickers or magnets are re­
moved .
@ For the sake of the environment
Only wash the vehicle in facilities specially de­
signed for that purpose . This will reduce the
risk of dirty water contaminated with oil from
entering the sewer system.
Cleaning and care information
When cleaning and caring for individual vehicle
components, refer to the following tables. The
information contained there is simply recom­
mendations. For questions or for components that are
not listed, consult an authorized Audi
dealer or authorized Audi Service Facility. Also
follow the information found
in~.&. -
Exterior cleaning
Component Situation Solution
Windshield wiper
Deposits ~ page 51
blades
Headlights/
Deposits Soft sponge with a
mild soap solutiona)
Tail lights
Sensors/
Deposits Sensors: soft cloth with solvent-free cleaning solution
camera lenses Camera lenses: soft cloth with alcohol-free cleaning solu-
tion
Snow/ice Hand brush/solvent-free de-icing spray
Wheels Road salt Water
Brake dust Acid-free special cleaning solution
307
...

u. co .... N
" N .... 0 0 :c ' cleaners, solvents, wax or strongly
scented or aggressive cleaning products .
- Do not clean the refrigerator with rough
cleaning too ls such as steel wool.
(D Tips
- Insec ts are easier to remove from paint that
has been fresh ly waxed.
- Regular waxing can prevent rust spots from
fo rm ing.
Placing your vehicle out
of service
If you wou ld like to take your vehicle out of serv­
ice for a longer period of time, contact an author­
ized Audi dealer or authorized Audi Service Fac ili­
ty. They w ill advise you of important measures,
such as corros ion protection, service and storage
procedures. Also follow the information about
the vehicle batte ry
~page 279.
Care and cleaning
311

u. co .... N
" N .... 0 0 :c ' use the hex head, potentially causing an ac­
c ident.
- The factory-supplied jack is intended on ly
for your vehicle m odel. Under no circum­
stances should it be used to lift heavy
vehicles or other loads; you r isk injuring
yourself .
- Never start the en gine when the vehicle is
ra ised, which could cause an accident .
- Support the veh icle secure ly w ith appropr i­
ate stands if work is to be performed under­
neath the vehicle; otherwise, there is a po ­
tent ial risk for in ju ry .
- Never use the jack supplied with your Audi
on another vehicle, particularly on a heav ier
one . The jack is only suitable for use on the
vehicle it came w it h .
(D Tips
The vehicle jack* in your vehicle is mainte­
na nee -free .
Replacing wheels
Before changing a wheel
Observe the following precautions for your own
and your passenger's safety when changing a
wheel.
.,. After yo u experience a tire fail ure, pull the car
we ll away from moving t raffic and t ry to rea ch
level g round before you s top ¢&, .
.,. All passengers sho uld lea ve the ca r and move
to a saf e location (for instance, be hind t he
guardrai l) ¢ &, .
.,. Engage the parking brake to prevent you r vehi­
cle from rol ling
unintentionally ¢ A_.
.,. Move selector lever to position P ¢ A_.
.,. If you a re towing a trailer, unh itch the trailer
from your ve hicle.
.,. Take the jack and the spare tire ou t of the lug­
gage compa rtment
¢ page 312.
A WARNING
You or your passengers cou ld be inju red wh ile
chang ing a wheel if you do not follow these
safety precautions :
Emergenc y ass is tanc e
-If you have a flat tire, move a safe distance
off the road. Turn off the eng ine, turn the
emergency flashers on and use other warn­ ing dev ices to alert other motorists .
- Make sure that passengers wait in a safe
p lace away from the vehicle and well away
from the road and traff ic .
- To help prevent the veh icle from moving
suddenly and possib ly slipping off the jack ,
always fu lly set the par king brake and block
the front and back of the wheel diagonally
opposite the wheel being changed. W hen
one front w heel is li fted off the gro und,
p lacing the Au tom atic Transmi ssion in P
(Park) will
not p revent the vehicle from
mov ing.
- Before you change a wheel, be sure the
g ro u nd is leve l and firm. If necessary, use a
sturdy board under the jack .
- Always s tore the vehicle tool ki t, the jack
an d the replaced tire in the luggage com­
pa rtment ¢
page 213 .
(D Tips
Befo re c hangin g the wheel, you mus t activ ate
the jacking mode, so that the a utomat ic con ­
tro ls for the Adaptive Air Suspension do not
make it more di fficult to lift the vehicle with
the jack
¢ page 315 .
Changing a wheel
When you change a wheel , follow the sequence
described below step -by-step and in exactly that
order .
1. Activate the vehicle jack mode ¢ page 315 .
2. Remove the de corative wheel cover *. For
more detai ls see
a lso ¢ page 314, Decora­
tive wheel covers
or ¢ page 314, Wheels
with wheel bolt caps .
3. Loosen the wheel bolts ¢ page 315 .
4. Loca te t he p roper mount ing point for the
jac k and alig n the jack be low that po int
¢page 315 or ¢ page 316.
S. Rai se the ca r wi th the jack ¢ page 315 or
¢page 316 .
313