2015 AUDI A8 check oil

256 Tires and wheels
Incorrect wheel alignment
Incorrect wheel alignment can cause exces­
sive tire wear, impairing the safety of the vehi­
cle. If tires show excessive wear, have the
wheel alignment checked by an authorized
Audi dealer or qualified workshop.
All Wheel Drive
Vehicles with quattro must always have tires
of the same size, construction and tread type.
For details see Qpage 202 .
.&_ WARNING
Sudden tire failure can lead to loss of con­
trol, a crash and serious personal injury!
- Never drive a vehicle when the tread on
any tire is worn down to the wear indica­
tors.
- Worn tires are a safety hazard, they do
not grip well on wet roads and increase
your risk of"hydroplaning" and loss of
control.
- Always keep chemicals that can cause
tire damage, such as grease, oil, gasoline
and brake fluid away from tires.
- Tires age even if they are not being used
and can fail suddenly, especially at high
speeds. Tires that are more than 6 years
old can only be used in an emergency
and then with special care and at lower speeds.
- Never mount used tires on your vehicle if
you are not sure of their "previous histo­
ry." Old used tires may have been dam­
aged even though the damage cannot be
seen that can lead to sudden tire failure
and loss of vehicle control.
New tires and replacing tires and wheels
New tires and wheels have to be broken in .
Fig. 212 Tir e specificat ion codes on the s idewall of a
t ire
No. Description
@ Nominal width of tire in millimeters
® Ratio of height to width (aspect ratio)
© Radial
® Rim diameter code
® Load index and speed rating
(J) U.S . DOT tire identification number
® Audi Original tire
® Sever snow conditions
@ Tire ply composition and materials
used
@ Maximum load rating
@ Treadwear, traction and temperature
grades
@ Maximum permissible inflation pres-
sure
The tires and rims are essential parts of the
vehicle's design . The tires and rims approved
by Audi are specially matched to the charac­
teristics of the vehicle and can make a major .,..

26 2 T ire s and wheel s
chains because the vehicle will be ex­
tremely low. If you do drive with snow
chains on while the vehicle is at this lev­
el, the snow chains might severe ly dam­
age the wheelhouse and other parts of
the veh icle.
(D} Tips
Where snow chains are mandatory oncer­
tain roads, this normally also applies to
veh icles with All Wheel Drive.
Wheel bolts
Wheel bolts must always be tightened to the
correct torque .
The design of whee l bolts is matched to the
factory installed r ims. If different rims
are fit­
ted, the correct wheel bolts with the right length and correctly shaped bolt heads must
be used. This ensures that wheels are fitted
secure ly and that the brake system functions
correctly .
In certain circumstances, you may not use
wheel bolts from a different vehicle -even if it
is the same mode l
¢page 292.
_& WARNING
Imprope rly tig htened o r maintained whee l
bolts can be come loose ca using loss of
contro l, a co llision and serious persona l in­
jury.
- Always keep the wheel bol ts and the
threads in the wheel hubs clean so the
wheel bolts can tu rn easily and be prop­
er ly tightened .
- Never grease or oil the wheel bo lts and
the threads in the wheel h ubs. They can
become loose w hile driving if greased or
oiled, even if tightened to the specif ied
torque.
- Only use wheel bolts that belong to the rim being installed.
- Never use different whee ls bolts on your
vehicle.
- Always maintain the correct tighten ing
torq ue for the wheel bo lts to reduce the risk of a whee
l loss. If the tightening tor­
que of the wheel bolts is too low, they
can loosen and come out when the vehi­
cle is mov ing. If the tighte ning torque is
too high, the wheel bolts a nd threads
can be damaged and the whee l can be­
come loose.
([) Note
The specified torque for the whee l bolts is
90 ft lb (120 Nm) with a tolerance of± 7,4
ft lb(± 10 Nm). Torque whee l bolts diago­
nally. Afte r changing a whee l, the torque
must be checked as soon as possible wi th a
torque wrench -pre ferably by an au thor­
ized Audi dealer or qualified workshop .
Low aspect ratio tires
Your Audi is factory-equipped with low aspect
ratio tires. These tires have been thoro ughly
tested and been se lected specifically for your
model for their superb performance, road fee l
and hand ling u nder a var iety of d riv ing condi ­
t ions . As k your author ized Audi dealer for
more details.
The low aspect ratio of these tires is ind icated
by a numeral of
55 or less in the tire's s ize
designation . The numeral rep resents the ratio
of the t ire's s idewa ll height in relation to its
t read width ex pressed in percentage. Conven­
tiona l tires have a he igh t/w idth rat io of 60 or
more.
The performanc e of low -a sp ec t-ratio tires i s
pa rticularly sensitive to improper inflation
pre ssure . It is therefore important that low
a spect ratio tires are inflated to the specified
pre ssure and th at the inflation pressure i s
regularly checked and maintained. Tire pre s­
s u res should be checked at least once a
month and always befo re a long trip
¢ page 251, Checking tire pressure .
What you can do to avoid tire and rim
damage
Low aspect ratio tires can be damaged more
easily by impact w ith potholes, curbs, gull ies .,..

286 Emergency situations
- When removing heavy components like
these, ancho r vehicle to ho ist o r add cor­
responding weig hts to ma inta in the cen ­
ter of g ravity. Othe rwise, the vehicle
m ight tilt o r slip off t he hoist, causi ng
serious p erson al inju ry .
@ Note
- Be awa re of the following points befo re
li fting the vehicle:
- The vehicle should never be lifted or
jacked up from underneath the engine
oil pan, the transmission housing , the
front or rear axle or the body side membe rs. This could lead to serious
damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be
inserted between the floor jack and
the lift points.
- Before driving over a workshop hoist,
check that the veh icle weight does not
exceed the permissible lifting capacity
of the hoist .
-Before driving over a workshop hoist,
ensure that there is sufficient clear­
ance between the hoist and low parts
of the vehicle.

29 2 Con sum er Inf ormation
-Always make sure the transmission se­
lector lever (automatic transmiss ion) is
in "P" (Park position) and the park brake
is applied .
@) For the sake of the environment
-Changing the engine settings wi ll ad­
versely affect em iss ion levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn o ut tires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo ­
rate Material -spec ial handling may ap­
ply, see www.dtsc.ca .gov/hazardous­
was te/perch lorate . When the veh icle or
parts of the res traint system including
airbag modules safety belts wit h preten ­
sioners are scrapped, all applicable laws
and regulations must be observed. Your
authori zed Aud i dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories.
Your veh icle incorporates the latest safety de­
sig n featu res ensu ring a high standard of a c­
tive and passive safety .
This safety could be comp romised by non-ap­
proved changes to the ve hicle. For this reason ,
if pa rts have to be replaced , please obse rve
the following points when install ing addition­
a l accessories: Approved Audi accesso
ries and genuine Aud i
parts are available from authorized A udi deal­
ers.
T hese dea le rs a lso have the necessary facili­
ties, tools and tra ined specialists to install the
parts and acc essories proper ly .
A WARNING
-Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious persona l injury.
- Use on ly accessories express ly approved
by Audi and ge nuine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on yo ur ve­
h icle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNI NGS
9 page 228 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth­
ods, this can resu lt in seve re damage to
your vehicle's eng ine and body (such as
corrosion) and adversely affect yo ur vehi ­
cle's warranty .
- The innovative a luminium concept of
your Audi AB means that all servicing, re­
pairs or other work on the vehicle body
must be carr ied out exclusive ly by an
Audi workshop .
- If emergency repairs must be performed
elsewhere, have the veh icle examined by
an authorized Audi dealer as soon as
possible .
- The manufacturer cannot be held liable
for damage wh ich occurs due to failure
to comply with these stipulations .

296 Index
AUTO Automatic cl imat e control . ... ... ... .. 79
Automatic headlights ....... .. .... . . 46
Auto Lock 33
Automatic belt retractor . . . . . . . . . . . . . 146
Automatic climate control Air vents ... ................ ..... .. 80
Automatic recirculation .............. 81
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 79
Se tup . .. .. .. . .......... .. .. .... .. 81
Automatic climate control system synchronizing ................ .... .. 80
Automatic t ransmission ... .. .. .. .. .. . 114
Automatic transmission (tiptronic)
Eme rgency mode .............. .... 118
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . 117
Manual shifting ........... ... .. ... 117
Parking lock emergency release . .... . 119
Selector lever posit ions ............. 114
Automatic wipers . . . . . . . . . . . . . . . . . . . . 53
Auto Safety Hotline ................ . 141
Average consumption ........... .. .. .. 25
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Avoid damaging the vehicle ...... .... . 207
B
Batt ery . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Charging . ............... .. .. .... . 242
I mportant warnings ....... ... .. .. . 241
Loc ation ... ................ ..... . 241
low .. ... .................. ..... . 202
Replacing the battery ..... .. .. .. .. . 243
State of charge ........... .. .. .... . 202
Winter operation .................. 240
Working on the battery ............. 241
Before driving .............. ... .... . 133
Blended gasoline ........ .. .. .. .. .. . 220
Blower (automatic climate control) . . . . . . 80
Boost er seats .............. ... .... . 182
Brake assist : Post-collision ..... .. .. .. . 198
Brake fluid Changing the brake flui d ... .. .. .. .. . 239
Checking the brake fluid level . .. ..... 239
What is the correct brake fluid level? .. 239
What should I do if the brake fluid warn-
ing light comes on? ............... . 239 Brake system
Anti- lock braking system ............. 19
Brake assist system ................ 197
Brake booster ..................... 200
Brake fluid .... .. ............. .... 239
Brake fluid specifications for refill and re -
placement .. .. .. .. ..... ........ .. 239
Brake light defective . . . . . . . . . . . . . . . . 22
Brake pads .. .. . .. ............ .. .. 205
El ec tromechanical parking brake ...... 85
Fluid reservoir ... ................. 239
How does moisture or road salt affect the
brakes? ......... .. .............. . 199
Warning/indicator lights ........ .... . 14
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard Messages ..... .. .. .............. .. 99
Braking guard ..... ................ .. 92
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Break-in period .. .. ............. .. .. 205
Brake pads .. .. .. ...... .... .... ... 205
Tires 205
Bu lbs ..... ..... .. .. .............. . 280
C
California Proposition 65 Warning ... .. 229
Battery specific . . . . . . . . . . . . . . . . . . . 242
Capacities .. .. .. .. ............. .. .. 288
Engine oil ..... ... .............. .. 231
Carbon parts
Cleaning .................... 216,217
Car carrier Transporting your vehicle ........... 285
Care ... .. .. .. .. .. ............. .. .. 214
Cargo are a
refer to Luggage compartment ...... .
Catalytic converter
Center armrest 139
206
Cockpit ... .... .. ............. .... . 61
Rear
Central locking .. .................. . .
Emergency locking .......... ..... .. . 68
33
37
Certification .... .. ............. .... 293
Changi ng a wheel .. ... .......... .. .. 269
Ch . . 'l
angmg engine
01 ....••....•..... • 235

,....,
N ,....,
N
0 J:
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Index 299
-----------------------------------.......
Emergency warning triangle ... .. .. .. . 266
Energy management ................ 202
Engine Compartment ..................... 230
Coolant .. ............... ......... 236
Data .. .. ..... ........... ...... .. 289
Start-Stop-System . . . . . . . . . . . . . . . . . . 87
start ing .. .. ................. .. .. .. 83
Starting wi th jumper cab les ......... 281
S topping . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Eng ine compartment ................ 230
C losing the hood ................ .. 229
Opening the hood ............ .. ... 228
Safety in structions .......... .. .. ... 228
Wo rking in the engine compa rtment .. 22 8
Eng ine coolant ..................... 236
Adding coolant ............ ...... .. 237
Checking the eng ine coolant leve l ... .. 237
E xpansion ta nk .................... 237
M alf unc tion symbo l ................. 15
Radiato r fan . ..... .... ... .. .. .. ... 238
Temperature ga uge .... ... .. .. .. .. .. 10
E ng ine oil . .. ..... ........ ...... .. . 23 1
Adding . ... ................ ... .. . 234
Addit ives . .. ................. .. .. . 234
Changing . ... ... ..... ... .. .. .. ... 235
C hecking oil level . ..... ... .. .. .. .. . 234
C hec king the engine oil level . ... .. .. . 233
Consumpt ion .................. ... 234
Indications and condit ions requ iring ex-
tra check ing ...................... 233
Indicator light . . . . . . . . . . . . . . . . . . . . . 17
O il consumption .... ... ... .. .. .. .. . 233
O il grades .. ................. .. ... 23 1
P ressu re malfunction ................ 17
Recommended oil check in tervals .. ... 233
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Specification and viscosity . ... .. .. .. . 23 1
E ng ine sound ............. .... .. .. . 108
Eng ine speed limitat io n ............... 21
E ng ine start -stop mode
refer to Sta rt-Stop -Sys tem ... .. .. .. .. 89
E ntry assistance . . . . . . . . . . . . . . . . . . . . . 64
Environment Break- in period ............... .. ... 205
Catalytic converter ............... .. 206
D iese l part icu late filter ............. 206
Di sposing of yo ur vehicle batte ry 2 43 Driving at high speeds
.. ..... ... .. .. 208
Drivi ng to minimize poll ution and noise 207
Fuel . ... .. .. .. .. .. . .. ... .... ... .. 223
Fuel economy ..................... 207
Leaks under your vehicle ............ 228
Letting the vehicle stand and warm up . 208
Proper disposal of dra ined brake fl uid . 239
Proper disposal of d ra in ed eng ine cool-
an t ............................. 237
P roper disposal of dra ined eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 234, 235
Recycling used engine oil ..... ... .. .. 234
U nl eaded fuel .. .. .. . ... ...... ... .. 220
What shou ld I do with an o ld battery? . 243
E PC
refer to Elect ron ic power control (EPC) . 20
ESC Post-coll is ion b ra ke assist .......... . 198
also refer to Electronic Stab ili zation Con-
t ro l (E SC) ... .. ................... 197
Event Data Recorder (EDR) ............ 196
Exhaust tail pipes Cleaning . ... .... .. . .. .. ..... ... .. 216
E xpansion tank .. ... ................ 237
Exterior lighting ..................... 46
Exterior mi rrors
Adjusting ... .... .. . .. .. ..... ... .. . 55
Dimming ...... ................... . 56
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
E xterior tempera ture display ........... 23
F
Fastening
B oos ter sea ts .. ................... 182
Convertib le child sa fety seats . ... .. .. 18 1
Infant seats ... .... . ... ...... ... .. 180
Floor mats .. ... .... ........... ..... 139
Fo lding table .... .................... 69
Foot ped als . .... ................... 138
For the sake of the environment
Gasoline fumes and the env ironment .. 223
Reduc ing engine nois e by ea rly upshift-
i ng ............................... 10
Ref uell ing ... .. ................... 22 3
Saving f uel by early upsh ifting ... .. .. . 10
Four zone automat ic climate control ..... 79
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