fuel tank capacity AUDI A8 2018 Owners Manual

Cockpit overv iew
CD Note
- Auxiliary headlights and other accessories in
front of the cooling-air intake impair the
cooling effect of the coolant. This increases
the r isk of the engine overheat ing during
high outside temperatures and heavy en-
gine load.
- The front spoiler also helps to distr ibute
cooling air correctly wh ile driving. If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the engine over­
heating will inc rease. See an a uthorized
A ud i dealer or authorized Audi Service Fa­
cility for assistance .
Tachometer
The tachometer displays the engine speed in rev ­
olutions per minute
(RPM).
You should shift to the next lowest gea r when
the speed is below 1,500 RP M. The beginn ing of
the red zone in the tachometer ind icates the
maximum permissible engine speed fo r all gears
once the engine has been broken in and when it is
warmed up to operating temperature . Before
reaching this zone, you should shift into the next
highest gear, select the D selector lever position,
or remove your foot from the accelerator pedal.
~ Note
The needle in the tachometer @ c:> page 9,
fig. 3 may only be in the red area of the gauge
for a short time or there is a risk of engine damage. The locat ion where the red zone be­
gi ns varies depending on the engine.
@ For the sake of the environment
Upshifting early helps you to save fuel and re­
duces operating noise.
Fuel level
The display @ only works when the ignition is
sw itched on. If the fuel level drops below 4 gal
(15
L), a red L ED will light up and the Ill indica­
tor light will turn on
c:> page 24. The red LED
will blink when the fuel level is very low.
10
The fuel tank capacity of your ve hicle is listed in
the
Techn ical Data section c:> page 334.
CD Note
Neve r drive until the tank is comp letely emp­
ty. The irregu lar supply of fuel th at results
from that can cause engine misfires . Uncom­
busted fuel w ill then enter the exhaust sys­
tem. This can cause overheating and damage
to the catalyt ic converter.
Odometer
Fig. 4 Instru ment cluster: odometer and reset button
Upper odometer
The trip odometer shows the distance driven
s ince it was last reset.
It can be used to measure
short distances.
The trip odometer can be reset to zero by press ­
ing
the ~ reset button.
Lower odometer
The lower odomete r shows the total distance
that the vehicle has driven.
Malfunction indicator
If there is a malfunction in the instrument clus­
ter,
DEF will appear in the trip odometer display.
Have the malfunction corrected as soon as possi­
ble.

u. co .... N
" N .... 0 0 :c ' fill up at busy gas stations where the seasona l
adjustment is more like ly to be made in time .
@ Note
-Methanol f uels whi ch do not meet these re ­
quirements may ca use corrosion and dam­
age to plastic and rubber components in the
fuel system .
- Do not use fuels that fai l to meet the speci ­
fied criteria in this c hapter.
- If you are unable to determine whether or not a particular fue l blend meets the speci ­
fications, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identif ied.
- Fuel system damage and performance prob ­
l ems resulting from the use of fue ls differ­
ent from those specif ied are not the respon­
s ibility of Audi and are not covered under
the New Veh icle or the Emiss ion Control
System Warrant ies .
- If you experience a loss of fue l economy or
driveability and performance problems due
to the use of one of these fuel blends, we
r ecommend that you switch to unblended
fuel.
Gasoline additives
Applies to: vehicles with gasoline engine
A majo r concern among many auto manufactur ­
ers is carbon deposit build-up caused by the type
of gasoline you use.
A lthough gasoline grades d iffer from one manu­
facturer to another, they have cer tain things in
common . A ll gasoline grades contain substances
that can cause deposits to collect on vita l engine
parts, such as fue l injectors and intake valves . A l­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective.
Audi recommends using TOP TIER Detergent Gas­
oline. For more informat ion on TOP TIER Deter­
gent Gasoline, please go to the official website (www .toptiergas .com) .
Check ing and F illing
A fter an extended period of using inadequate
fuels, carbon deposit bui ld-ups can rob your en ­
gine of peak performance.
@ Note
Damage or ma lf u nction due to poor fue l qual ­
ity is not covered by the A udi New Vehicle
L imited Warranty .
Refueling
Fuel filler neck
The fue l filler neck is located on the rig ht rea r
s ide panel behind the fuel fille r flap .
If the power lock ing system should fa il, yo u can
st ill open the flap manually - fo r detailed instruc­
tions see
~page 271.
You can find the fuel tank capacity of your vehicle
i n
~ page 334 .
The label on the inside of the fuel filler flap tells
you the correct fuel for your vehicle. For more in­
format ion about fuel spec ificat ions, see
~ page 268 .
Your vehicle fuel tank has an onboard refuelling
vapor recovery system. T his feature helps to pre­
vent fuel vapors from escaping from the tank and polluting the environment wh ile you refuel your
vehicle. In o rder to fill the tank proper ly w hile
prote ct ing t he env ironment, p lease follow t his
r ef uel ing p rocedure carefully.
& WARNING
= -
Unde r normal opera ting condi tions, neve r ca r­
r y additional f uel containers in your car. Gas
canisters and other containers used to trans ­
port fue l can be dangerous. Such containers,
f u ll or empty, may leak and could cause a fire
i n a collision. If you must transport fuel to
use for your lawn mower, snow blower, etc.,
be ve ry ca refu l and always observe loca l a nd
state laws rega rding the use, transpo rta tion
a nd stor age of su ch f uel con tainers. Make cer ­
t ai n t he co nta iner meets indus try standards
(A NSI/AS TM F8S2 - 86) .
269

Checking and Filling
(D Note
Never drive your vehicle until the fuel tank is
completely empty. The irregular supply of
fuel can cause m isfiring. Gasoline cou ld enter
the exhaust system and damage the catalyt ic
converter.
Fueling procedure
Fig. 252 Right re ar side of the vehicle: open ing the fue l
filler door
F ig. 253 Fue l filler doo r w it h attac hed fuel cap
The f uel fi ller door is unlocked or locked by the
central lock ing system.
Opening the fuel cap
• Presson the left s ide of the fuel filler door to
open
¢ fig . 252 .
• Unscrew the tank cap counterclockw ise.
• Place the cap from above on the open fue l filler
door
¢ fig. 253.
Clo sing th e fu el cap
• Screw the tank cap on to the r ight on the filler
neck until it cannot turn any farther .
• Close the fuel filler door and then press on the
left side until it latches.
270
Once the pump nozzle switches off, the fuel tank
is "full". Do not fill the tank more. Otherwise the
expans ion space in the tank w ill be filled.
The correct fuel type for your vehicle can be
fo und on a label located on the inside of the fuel
filler door . For additional information on fuel,
see ¢
pag e 268.
The fuel tank capacity of your veh icle is listed in
the
T echn ical Dat a section ¢ page 334.
To avo id fuel spilling or evaporat ing from the fuel
tank always close fue l cap prope rly and com­
plete ly. An improper ly closed f uel fi ller cap may
also cause the M IL lamp ¢
page 25 to come on.
A WARNING
Not pay ing attention when fueling or han ­
dling fuel incorrectly can lead to fires, explo­
sions or serious injur ies.
- Fue l ignites easily and can cause serious
burns and other injur ies.
-
- If you do not switch the engine off when fu­
eling and/or do not insert the fuel nozzle
completely into the tank open ing, fuel can
leak out or run over. Leaked fuel can ignite
and start a fire .
- Do not use the telephone while fueling . The
electromagnetic rays can cause sparks,
which can ignite fuel vapors and start a fire .
- Do not sit in your vehicle wh ile fueling. If
you must make an exception and enter your
veh icle again while fueling, close the door
a nd touch metal to d ischa rge stat ic elect ric­
ity before to uching the f uel no zz le. Static
e lec tricity ca n create spa rks, which ca n ig ­
n ite vapors when fueling.
- Do not smoke or have an open flame in the
a rea whe n fue lin g you r veh icle or filling a
fue l container because this increases the
risk of an explosion.
- F or your safety, carrying fuel containe rs in
your veh icle is not recommended . Whet her
fu ll or empty, the container can leak and
cause a fire in the event of an accident.
- If you must make an exception and trans­
port a fuel container, note the fo llowing:

Technical data
Dimensions
Length (in (mm )) Width (in (mm))
Width across the Height at curb
mirrors (in (mm)) weight (in (mm))
AB L 207.3 (5,265) 76.7 (1,949) 83.l (2,111) 57.9 (1,471)
AB 202.2 (5,135) 76.7 (1,949) 83.1 (2,111) 57.5 (1,460)
58 202.6 (5,147) 76.7 (1,949) 83.l (2,111) 57.4 (1,458)
Capacities
Fuel
tank
Windshield and headlight washer system*
Weights
Gross Vehicle Weight Rating
The Gross Vehicle Weight Rating (GVWR), and
the Gross Axle Weight Rating (GAWR) for front
and rear are listed on a sticker on the door jamb
on the driver's side .
The Gross Vehicle Weight Rating includes the
weight of the basic vehicle p lus full fuel tank, oi l
and coolant, plus maximum load, which includes
passenger weight (150 lbs/68 kg per designated
seating position) and luggage
we ight¢ &..
Gross Axle Weight Rating
The Gross Ax le Weight Rating is the maximum
load that can be applied at each axle of the vehi ­
cle
¢ &. .
Vehicle capacity weight
The vehicle capacity weight (max. load) is listed
either on the driver's side B-pillar or inside the
fue l filler f lap .
A WARNING
- The actual Gross Axle Weight Rating at the front and rear axles should not exceed the permissible weights, and their comb inat ion
must not exceed the Gross Veh icle Weight
Rating .
334
Approximate capaci-
ties
2 1. 7 gal (82.0
L)
5.3 qt (5.0 L)
- Exceed ing permissible weight ratings can
result in vehicle damage, accidents and per­
sonal injury.
@ Note
- The veh icle capacity weight figures apply
when the load is d istr ibuted evenly in the
vehicle (passengers and luggage) . When
transport ing a heavy load in the luggage
compartment, carry the load as near to the
rea r axle as possible so that the vehicle's
hand ling is not impai red.
- Do not exceed the maximum permissible
ax le loads or the maxim um gross vehicle
we ight . A lways remember that t he ve hicle's
handling will be affected by the extra load.
Th erefore, adjust your speed accordingly .
- Always observe local regulations .

Index
Emergency operation
Fr ont passenger 's door . . . . . . . . . . . . . . . . 32
Fuel filler door . . . . . . . . . . . . . . . . . . . . . . 271
Luggage compartment lid . . . . . . . . . . . . . . 36
Panoram a glass roof . . . . . . . . . . . . . . . . . . 40
Sliding/tilting sunroof . . . . . . . . . . . . . . . . . 39
Sunshade (roof) . . . . . . . . . . . . . . . . . . . . . . 40
E mergency re lease
Parking lock . . . . . . . . . . . . . . . . . . . . . . . . . 88
Emergency starting . . . . . . . . . . . . . . . . . . . 327
Emissions control system . . . . . . . . . . . . . . 272
Energy consumers (efficiency program) . . . . 13
Energy management . . . . . . . . . . . . . . . . . . 131
E ngine
Start/Stop system . . . . . . . . . . . . . . . . . . . . 78
Starting/stopping . . . . . . . . . . . . . . . . . . . . 76
Starting with jumper cables . . . . . . . . . . . 327
E ngine compartment . . . . . . . . . . . . . . . . . . 272
Opening/closing the hood . . . . . . . . . . . . . 273
Engine oil
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . . 275
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Checking oil level . . . . . . . . . . . . . . . . . . . . 275
Con sumption . . . . . . . . . . . . . . . . . . . . . . . 275
Engine sound . . . . . . . . . . . . . . . . . . . . . . . . 111
Entering a destination . . . . . . . . . . . . . 166, 170
Entering an address . . . . . . . . . . . . . . . . . . 166
From the map . . . . . . . . . . . . . . . . . . . . . . 167
La st destinations . . . . . . . . . . . . . . . . . . . . 169
Starting point (presentation mode) . . . . . 173
Entering letters (speller) . . . . . . . . . . . . . . . 138
E ntering numbers/symbols (speller) . . . . . . 138
Entry assistance . . . . . . . . . . . . . . . . . . . . 58, 76
Environment Environmentally-friendly/ economical driv -
ing ..... ... .. .. ................ ... .. 74
Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
Proper disposal of drained engine o il . . . . 277
Unleaded fu el . . . . . . . . . . . . . . . . . . . . . . . 268
EPC (engine control) . . . . . . . . . . . . . . . . . . . . 23
ESN
refer to Serial number (radio) ... .... .. .
Event Data Recorder (EDR) ........ .. .. .
E xterior lighting 179
133 43
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . . 47
344
F
Factory default settings
Multi Media Interface . . . . . . . . . . . . . . . . 207
R5E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Fader(sound) ... .. .. .. ............. .. 206
Fastening Booster seats . . . . . . . . . . . . . . . . . . . . . . . 257
Convertible child safety seats . . . . . . . . . . 256
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 255
Fast forwarding/rewinding (audio/video
file) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
Fast forwarding (audio/video file) . . . . . . . . 191
Favorite (navigation) . . . . . . . . . . . . . . 169, 173
File format (media) . . . . . . . . . . . . . . . . . . . 187
Floor mats.. .. .. .. .. .. ............. .. 213
Folding table . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 213
Free text search
T elephone. . . . . . . . . . . . . . . . . . . . . . . . . . 152
Freeze protection Coolant additive . . . . . . . . . . . . . . . . . . . . . 277
Front airbags
Description . . . . . . . . . . . . . . . . . . . . . . . . . 231
Frontal collisions and the laws of physics . . 220
Front center armrest . . . . . . . . . . . . . . . . . . . 55
Front passenger seat adjustment . . . . . . . . . 58
Front seats
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Child restraints in the front seat . . . . . . . . 228
also refer to Seats . . . . . . . . . . . . . . . . . . . . 54
Fuel Additives. . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Blended gasoline . . . . . . . . . . . . . . . . . . . . 268
Current consumpt ion . . . . . . . . . . . . . . . . . . 12
Fuel filler neck . . . . . . . . . . . . . . . . . . . . . . 269
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 9, 10
Fuel tank capacity . . . . . . . . . . . . . . . . . . . 334
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 268
Gasoline additives . . . . . . . . . . . . . . . . . . . 269
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 268
Recommendation . . . . . . . . . . . . . . . . . . . . 268
Saving fuel ...... .. .. ............ 74, 111
Fueling Fuel filler door . . . . . . . . . . . . . . . . . . . . . . 270
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Fuel tank capacity . . . . . . . . . . . . . . . . . . . 334