2014 AUDI A8 fuel cap

230 Fuel supply and filling your fuel tank
AdBlue residue that is not removed w ill
crystallize and can damage the affected
surface .
- Do not store the refill bott le in the vehi­
cle. If it leaks, the escaping Ad B lue could
damage the vehicle inter ior.
- Do not allow Ad Blue to come into con­
tact with clothing . If there is contact
with the f luid, flush immediately with
plenty of water.
@ Tips
- You can obta in refill bott les from any au­
thorized Audi dealer or other qualified
workshop.
- Follow the Ad Bl ue manufacturer's in­
structions for usage and storage.

(D Tips
The oil level indicator in the MMI Display is
only an information d isp lay. If the oil leve l
is low, a minimum oi l warning appears in
the instrument cluster. Add oil
r::;, page 23 7 . If the hood has been opened,
the cu rre nt oil level is shown in the instru­
ment cluster the next time the ign ition is
sw itched on.
Checking the engine oil level
Ap plies to vehicles: with oil dipstick
Fig. 202 Oil dips tick: marking fields
Before you check anything in the engine com­
partment,
alway s read an he ed all WARN­
INGS r=;,page 231.
Determining th e oil le ve l
.. Park your vehicle on a level surface.
.. Let the engine run in idle briefly while it is at
operating temperature and then shut the
engine off .
.. Wait approximately two minutes .
.. Remove the oil dips tick. W ipe off the oil dip­
stick with a clean cloth and insert it all the
way in again.
.. Remove the dipstick again and then read the
oil level
¢ fig. 202. Add engine oil if neces­
sary
r::;, page 23 7.
Oil l evel in th e (v area
.. Do no t add any oil.
Oil level in the @area
.. You may add oil. After adding oil, the level
should be in the
(v area.
Checkin g and fillin g 237
Oil le vel in the 0 a rea
.. Yo u must add oil. After add ing oi l, the level
should be in the
0 area.
Depend ing on the way the vehicle is dr iven
and the ope rat ing cond itions, oi l consumption
can be up to
1/2 quart pe r 600 miles (0.5 liter
per
1 ,000 km) . Consumption may be higher
within the first
3,000 miles (5,000 km). Be­
cause of this, the engine oil leve l must be
checked regularly.
It would be best to check
each time you refuel your vehicle and before
long drives .
Adding engine oil 9=:1-
0 N
N
"' :l!
Fig. 203 En gin e compart ment: cover on th e eng ine oil
filler neck
Before you check anything in the eng ine com­
partment,
alw ay s re ad and heed all WARN­
INGS r::;, .&. in Working in the engine compart­
ment on page 231 .
.. Shut the eng ine off .
.,. Unscrew the cap~ to the eng ine o il filling
hole
¢ fig. 203, r=;,page 233 .
.. Carefully top off with 0.5 quarts (0 .5 liters)
of the appropriate oil
r::;, page 234 .
.. Check the oil level aga in after two minutes
r::;, page 236, Checking the engine oil level or
r::;, page 23 7, Checking the engine oil level.
.. Top off the oil aga in, if necessary.
.. Screw the cap back on the filling hole .
A WARNING
-
-Wh ile topping off, the o il must not come
in contact with hot engine parts -fire
hazard!
II-

-Never mount used tires on yo ur vehicle if
yo u 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.
- If you notice unusual vibration or if the
vehicle pulls to one side when d riving, al­
ways stop as soon as it is safe to do so
and check the wheels and tires for dam­
age .
(D Note
Please note that summe r and wi nte r tires
are designed for the cond itions that are
Glossary of tire and loading terminology
Accessory weight means the comb ined weight (in excess of
those sta ndard items which may be rep laced)
of au toma tic transmission, power steer ing ,
power brakes, power windows, power seats,
radio, and heater, to the extent that these
items are availab le as factory-installed equip­
ment (whether installed or not) .
Aspect ratio
means the rat io o f the height to the w idth of
the tire in percent . Numbers of 55 or lower in ­
dicate a low sidewall for improved steering re­
sponse and better overa ll handling on dry
pavement .
Bead
means the part of the t ire t hat is made o f
steel wires, wrapped or reinforced by ply cords
and that is shaped to fit the r im.
Bead separation
means a b reakdown of the bond between
components in the bead .
Cord means the strands forming the plies in the
tire.
Tire s an d wheel s 249
typica l in those seasons . Aud i recommends
using winter tires during the winter
months . Low temperatures signif icant ly
dec rease the e lasticity of summer t ires,
which affects tract ion and brak ing ability.
If summer t ires are used i n very co ld tem ­
peratures, cracks ca n form o n the tread
bars , res ulting in perma nen t tire damage
that can cause loud driving noise and un­
bala nced ti re s. Audi i s not respon sible for
th is type of damage .
Cold tire inflation pressure
means the t ire p ress ure recommended by t he
vehicle manufacture r fo r a tire o f a des ignated
s ize t hat has not bee n driven for more than a
coup le o f miles (k ilometers) at low speeds in
the three hour period before the tire press ure
is m easured or adjusted.
Curb weight
me ans the we ight of a motor ve hicle with
st andard equipmen t incl ud ing the max imum
capacity of fuel, oi l, and coolant, air condi ­
tioning and additional weig ht of optiona l
equipment.
Extra load tire
means a t ire design to oper ate a t higher load s
and at higher inflation pressures than the cor­
responding standa rd tire . Extra load tires may
be identified as "XL", "x l", "EXTRA LOAD", o r
"RF" on the sidewal l.
Gross Axle Weight Rating ("GAWR")
me ans the load-ca rry ing capac ity of a single
axle system , measured at the tire -ground in­
te rfaces.
Gross Vehicle Weight Rating ( "GVWR ")
mea ns the maximum total loaded we ight of
the ve hicl e. .,..
•
•

256 Tire s and wheel s
the function of the tire pressure monitor­
ing system*.
- Always inflate tires to the recommended
and correct tire pressure before driving
off.
- Driv ing with under inflated tires bend
more, letting them get too hot resu lting
in tread separation, sudden t ire fail ure
and loss of control.
- Excess ive speed and/overloading can
cause heat bui ld-up, sudden t ire failure
and loss of control.
- If the t ire pressure is too low or too high,
the tires w ill wear prematurely and the
vehicle will not hand le we ll.
- If the t i re is not flat and you do not have
to change a wheel immed iate ly, dr ive at
reduced speed to the nearest service sta­
t ion to check the tire pressure a nd add
air as required.
0 Note
Dr iving without va lve stem caps can cause
damage to the t ire va lves . To prevent this,
always ma ke sure that facto ry installed
valve stem caps on all wheels a re secu re ly
mou nte d on the valve.
@) For the sake of the environment
Unde rinflated tires will a lso inc reas e the
fue l cons umption .
Tires and vehicle load limits
There are limits to the amo unt of load or
weight that any vehicle and any t ire can carry .
A vehicle that is overloaded w ill not handle
well and is more difficult to stop. Overloading
can not only lead to loss of vehicle contro l,
but can also damage import ant parts of the
ve hicle and can lead to sudde n tire failure, in­
cluding a blowout and sudden deflation that
can cause t he veh icle to crash .
Your safety and that of your passengers a lso
depends on making sure that load limits are
not exceeded . Vehicle load includes everybody
and everyth ing in and on the vehicle. These load lim
its are technically referred to as the
vehicle's
Gro ss Vehicle Weight R ating
("GVWR").
T he "GVWR" includes t he weight of the basic
vehicle , a ll f actory installed accessories, a f ull
tank of fuel, oi l, coo lant and other f luids plus
maximum load. The max imum load incl udes
the number of passengers that the vehicle is
intended to carry ("seat ing capac ity ") with an
assumed we ight of 150 lbs (68 kg) for each
passenger at a designated seating posit ion
and the total weight of a ny luggage in the ve­
hicle. If you tow a trai le r, the we ight of the
t ra ile r hi tc h and the tongue we ight of the
l oaded tra iler mus t be include d as part of the
vehicle load .
T he
Gro ss Ax le Weight Rating ("GAWR ") is
the max imum load that can be applied a t each
of the veh icle's two axles .
T he Gross Vehicle Weight Rat ing and the
G ross Ax le Weig ht Ra ting are listed on the
sa fety comp lian ce s ticke r label located on the
driver's side B-pillar. Yo ur Audi has 5 seat ing
pos itions , 2 in the front and 3 in the rea r fo r
total seati ng capacity of 5. Vehicles with pow ­
er indiv idual rear seats * have 4 seating posi­
tions, 2 in the front and 2 in the rear for total
seat ing capac ity of 4. Each seating position
has a safety belt¢
page 145, Safety belts.
The fact that there is an upper limit to yo ur
vehicle's Gross Vehicle Weight Rating means
that the to tal weight of wha tever is being car­
ried in the vehicle ( includ ing t he weight of a
t ra ile r hitch and the tongue weight of the
loaded tra ile r) is lim ited. The more passe n­
gers in the vehicle or passengers w ho are
he avier th an t he st andard we igh ts assumed
mean that less we igh t can be carried as lug ­
gage.
T he tire pre ssure label o n your Audi also lis ts
t h e max imum combine d weig ht of all of the
occupants and luggage or o ther cargo that
the vehi cle can carry . For the location of the
l abel ¢
page 252, fig . 208. liJJ>

264 Tires and wheels
The speed rating letter code( ¢ page 251) is
on the side wall of the tire¢ page
259.
A WARNING
Winter tires have maximum speed limits
that may be lower than your vehicle's max­
imum speed . Always know the maximum
speed before driving off. Never drive faster
than the speed permitted for your specific
winter tires. This will cause damage to the
tires leading to an accident and serious
personal injury to you and your passen­
gers.
A WARNING I>=
Driving faster than the maximum speed
for which the winter tires on your vehicle
were designed can cause tire failure in­
cluding a blowout and sudden deflation,
loss of control, crashes and serious per­
sonal injuries. Have worn or damaged tires
replaced immediately.
- Winter tires have maximum speed rating
that may be lower than your vehicle's
maximum speed .
- Never drive faster than the speed for
which the winter or other tires installed on your vehicle are rated.
A WARNING
Always adjust your driving to the road and
traffic conditions. Never let the good ac­
celeration of the winter tires and all-wheel
drive tempt you into taking extra risks . Al­
ways remember :
- When braking , an all-wheel drive vehicle
handles in the same way as a front drive
vehicle.
- Drive carefully and reduce your speed on
icy and slippery roads, even winter tires
cannot help under black ice conditions.
@) For the sake of the environment
Use summer tires when weather condi­
tions permit. They are quieter, do not wear
as quickly and reduce fuel consumption.
Snow chains
Snow chains may be fitted only to the front
wheels, and only to certain tire sizes . Ask your
authorized Audi dealer on which tire sizes snow chains can be used.
If you are going to use snow chains, then you
must install them on the front wheels at
least.
The snow chains must have low-profile links
and must not be thicker than 0.4 inch
(10,5 mm) , including the lock.
Remove wheel center covers and trim discs
before putting snow chains on your vehicle
¢ (!) . For safety reasons cover caps must then
be fitted over the wheel bolts. These are avail­
able from authorized Audi dealers.
A WARNING
=
Using the wrong snow chains for your vehi-
cle or installing them incorrectly can in­
crease the risk of loss of control leading to
serious personal injury.
- Snow chains are available in different
sizes . Always make sure to follow the in­
structions provided by the snow chain manufacturer.
- When driving with snow chains never
drive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations.
(D Note
- Remove snow chains before driving on
roads not covered with snow to avoid
damaging tires and wearing the snow
chains down unnecessarily .
- Snow chains, which come into direct con­
tact with the wheel rim, can scratch or damage it. Therefore, make sure that the
snow chains are suitably covered. Check
the position of the snow chains after
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow chain manufacturer when doing so.
-If the Adaptive Air Suspension should
malfunction, do not mount or use snow
11-

29 0 Techni cal Dat a
Gross Ax le Weight R atin g
The Gross Axle Weight Rating is the maximum
l oad that can be applied at each axle of the
vehicle
c::> &. .
Vehicle capacity weight
The vehicle capac ity we ight (max. load) is list­
ed eithe r on the dr iver's side B-pillar or inside
the fuel filler flap.
A WARNING
- The actual Gross Axle Weight Rat ing at
the front and rear axles should not ex­
ceed the perm iss ible weights, and their
combination must not exceed the Gross
Vehicle Weight Rat ing.
Dimensions
I>
Leng th in (mm)
Width in (mm)
Width (across mir rors) in (mm)
He ight (unloaded)a) in (mm)
T urning circle diameter
ft (m)
-
- Exceeding permissible weight ratings can
result in veh icle damage, acc idents and
personal injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distributed evenly in the
vehicle (passengers and luggage). When
transport ing a heavy load in the luggage
compartment, carry the load as near to
the rear axle as poss ible so that the vehi­
cle's handling is not impaired.
- Do not exceed the maximum permissible
axle loads or the maximum gross veh icle
we ight. Always remember that the vehi­
cle's handling w il l be affected by the ex­
tra load. Therefo re, adj ust your speed ac­
cordingly.
- Always observe local regulat ions.
AS SS ASL
202.4 (5137) 202.2 (5136) 207.52 (5267)
76 .7 (1949) 76 .7 (1949) 76 .7 (1949)
83.17 (2111) 83.17 (2111) 83.17 (2111)
57 .52 (1460) 57 .4 (1458) 57.96 (1471)
40.35 (12.3) 40.35 (12 .3) 41.67 (12 .7)
a) The he ight of the vehicle depends on the tires and the suspension.
When driving up steep ramps, on rough roads,
over curbs, etc . it is important to remember
that some parts of your ve hicle, such as spoil-
Capacities
Fuel tank: total capacity
Windsh ield and headlight* washer fluid container ers
or exhaust system components, may be
close to the ground. Be carefu l not to damage
them.
gal ( liters)
approx. 23.8 (90.0)
quarts (liters) approx. 5.29 (5.0)

302 Index
Fuel
A ddit ives ... ... . ...... ... .. .. .... . 222
Blended gasoline . ..... ... .. .. .... . 222
Current consumpt ion . . . . . . . . . . . . . . . . 25
Economy messages (efficiency program) 26
Fue l filler flap emergency release .. ... 227
F uel filler neck ..... .... .. .. .. .. .. . 224
F ue l gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Gasoline ... ................. .. .. . 22 2
G asoline add itives ........ .. .. .... . 223
L ow fue l level symbo l . . . . . . . . . . . . . . . 21
Octane rating .. .. ..... ... .. .. .... . 22 2
Recommendation . ..... ... .. .. .... . 222
Refue lling ........................ 225
Reserve ................. .... ...... 11
Tank capacity . . . . . . . . . . . . . . . . . 11, 290
Fu ses
Assig nment . .. .. ..... ... .. .. .... . 278
Rep lacing .. ............. .. .. .. ... 278
G
Garage door opener (Homelink) ... ... . 133
Garment hooks . . . . . . . . . . . . . . . . . . . . . . 76
Gas discharge lamps ........ .... ..... 282
Gauges Eng ine coolan t temperature . ... .... . . 1 0
Fu el gauge . . . . . . . . . . . . . . . . . . . . . . . . 11
Speedometer .. .. ..... ... .. .. .... .. 27
Tachometer . . . . . . . . . . . . . . . . . . . . . . . 11
Trip odometer ........... .... .... .. 27
G eneral illus tration ... ... .. .. .. .. .. . .. 8
Ge ne rato r . .. ... .... ...... .. .. .. .. .. 1 6
Glossary of ti re and load ing termino logy 249
G love compartmen t (c ooled) . .. .. .. .... 75
Glow plug system
Ind icator light . . . . . . . . . . . . . . . . . . . . . 20
Gross Vehicle Weight Rating (GVWR) . .. 289
H
Headlig hts
C leaning ....... ...... ........ .... 217
C leaning system ....... ... .. .. .... .. 53
Defective ................. .. .... .. 22
H eadlig ht range contro l . . . . . . . . . 22, 46
H igh beam assist .......... .... ..... 49
Washer rese rvoir .......... ... .. ... 24 7 Head restraints
. . . . . . . . . . . . . . . . . 6 5, 139
Adjusting ..... .. .. ... ..... ... .. .. 139
H eated
exter io r mir ro rs . . . . . . . . . . . . . . . . . . . . 55
re ar w indow ... .. ................. . 81
seats ... .. .... .. .. ... .. ..... ... .. . 81
win dshield washer spray nozz les . . . . . . 53
H eating .. .. .. .. .. .. ............. .. . 79
Heavy clothing and safety belts ........ 148
High beam . ..... .. ... .. ..... .... . .. . 48
H ig h voltage warning label ..... .. .. .. 289
Hill descent contro l ... .. ..... ... .. .. 119
H omelin k unive rsal remote con trol .... 133
Hood (re lease lever) ... .......... .. .. 231
Horn . ... .. .... .. .. .... . ..... ... .. .. 8
How are child rest raint syst em anchors re-
l ated to chi ld safety ............. .. .. 1 90
How many a irbags does my vehicle have? 160
How often should I check my tire pres-
s u res? ... .. .... .. .. .... . ..... ... .. 255
H ow safety b elt prete nsione rs wor k .. .. 151
Hydrop la n ing .................. .... 259
I
Ig nit ion
Indicator lights .................... 18
Switching on/off .............. ..... 84
Immobilize r .... .. .. .... .... ... .. .. . 27
Impo rtant t hings to do befo re driv ing .. 135
Improperly worn safety belts . . . . . . . . . . 151
Ind icator lig hts
refer to War ning/ indica to r li ghts . .... . 11
Infan t seats ...... ................ . 183
Installing child safety seats Safety be lts . . . . . . . . . . . . . . . . . . . . . . 187
Inst alling the upper te ther s trap on the
anchorage . ..... .. ... .. ..... ... .. .. 195
Instruments Adjusting the light ing ............. .. 51
Instr uments and controls
Genera l illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster ..... ....... ... .. . 10
Interior lighting
Amb ience lighting . .... ..... ... .. .. . 50
Front and rear .................. .. . 50
Inte rmi tten t (w indshie ld w ipers) ....... 53

Power windows ..... .... ... .. .. .. .... 41
malfunct ion . ... .. .... ... .. .. .. .... 42
P regnant wome n
Specia l cons iderations when weari ng a
safety belt . .. ........... .. .. .. ... 1 50
pre sense . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Preventative passenger protection . . . . . 197
Pr og ramming t he Homelink universa l re-
mote cont ro l .............. .... .. .. . 133
Prope r occupa nt seating posit ions .... . 136
P roper safety belt position . . . . . . . . . . . . 149
Pr ope r seat ing pos ition
Fr ont passenge r .......... .. .. .. ... 137
Occupa nts .. ............. .. .. .. .. . 136
Rear passengers . . . . . . . . . . . . . . . . . . . 138
Protect ing . ............ ...... .... .. 218
Q
quattro
refer to All Wheel Drive .. ..... .... .. 204
Question What happens to unbe lted occupants? 146
Why safety be lt s ? ........ .. .. ... .. 145
R
Radiator fan ... .... .... ... .. .. .. ... 241
Radio cloc k .. ............. .... .. .... 27
Ra in/light sensor
H eadlights ........... ...... .... ... 46
Intermittent (windshield wipe rs) . . . . . . 53
Sensor defective . . . . . . . . . . . . . . . . . . . . 2 2
Range (fuel level) .......... .. .. .. .. .. 25
Reading lights .. .. .. .... ... .. .. .... .. 50
Rear fog lights . ................. ... . 46
Rear lid Escape hand le
Rear light 269
D efect ive . . . . . . . . . . . . . . . . . . . . . . . . . 22
Rear seats Ad justing individua l seats .. .. .. .. .. .. 6 1
E ntry ass istance . . . . . . . . . . . . . . . . . . . . 64
Fr ont passenger seat adju stmen t .. .. .. 64
Reclining rear seat ..... ... .. .. .. .. .. 63
Rear view mir ro r . . . . . . . . . . . . . . . . . . . . . 56
Rear window heating ....... .. .. .. .. .. 81
Inde x 305
Recirc ulation mode (a utomat ic cl imate
control) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Reclining rear seat . ................. . 63
Ref uel ling .. .. .. .. ................. 225
Remote contro l
Garage door opener (Homelink) . ... .. 133
Massage function . . . . . . . . . . . . . . . . . . . 64
Un locking and locking . ............. . 35
Remote luggage compartmen t lid re lease 37
Repair ma nuals .. .. .. ............... 292
Repairs Airbag system ... .. .. .. .... ... .. .. 166
Re placi ng
F uses ... .. .. .. .. .. . .............. 278
Light bu lbs .. .... .. . .. .. ..... ... .. 282
Tires and wheels ... . .. ..... ... .. .. 260
Windshie ld wiper blades ..... ... .. .. . 54
Repo rting Safe ty Defe cts ......... .. .. 143
Reset button .. .. .. ............... .. . 27
Retractor . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Reverse . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Rims Cleaning .. .. .. .. ................. 217
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Load ing ... .. .... .. . .. .. ..... ... .. . 73
Roof weight ... .... . ... ...... ... .. . 73
s
SA FE .... .. .. .. .... .. .. ...... ... .. . 27
Safe driving habits . .. ... ....... .... . 135
Safety be lt pos ition . . . . . . . . . . . . . . . . . 149
Safety be lts worn by pregnant women . 150
Safety be lt pretensioner . . . . . . . . . . . . . . 151
Se rvice and disposa l .... ...... ... .. 152
Safety be lt pretensioners
P re sense . .. .. .. ... ............ .. 19 7
Safety be lts . . . . . . . . . . . . . . . . . . . . . . . . 148
Adjust ing ... .. .. .. . .. .... .... .. .. 150
Cleaning ........ .. ..... .......... 218
Danger to passengers who do not wear a
safety be lt . . . . . . . . . . . . . . . . . . . . . . . 146
F asten ing . .. .. .. .. ............... 148
Improperly worn ... . .. ... .... ... .. 151
Not worn . . . . . . . . . . . . . . . . . . . . . . . . 146
Safety be lt pos ition . . . . . . . . . . . . . . . . 149
Safety instr uctions ................. 148
•
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