2020 AUDI A3 fuel additives

Checking and Filling

Checking and Filling
Fuel
Types of gasoline
The correct gasoline grade is stated on the inside
of the fuel filler door.
The vehicle is equipped with a catalytic converter
and must only be driven with unleaded gasoline.
Audi recommends using TOP TIER Detergent Gas-
oline. For additional information on TOP TIER De-
tergent Gasoline, visit www.toptiergas.com.
The individual gasoline grades are differentiated
by octane ratings. This value is given with (R
+M)/2 equating to AKI or in RON.
The headings below match the sticker in the fuel
filler door (examples):
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular / MIN. RON 91 Regular
Use regular gasoline with minimum 87 AKI /
91 RON > ©.
Audi recommends using premium gasoline with
minimum 91 AKI / 95 RON to achieve the rated
horsepower and torque.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gasoline with minimum 91 AKI /
95 RON is recommended.
If premium gasoline is not available, you can also
use regular gasoline 87 AKI / 91 RON. However
this does reduce the engine power slightly.
() Note
— Filling the tank just one time with leaded
fuel or other metallic additives will cause
permanent deterioration to the catalytic
converter function.
— When gasoline with an octane rating that is
too low is used, high speeds or heavy engine
load can lead to engine damage.
298
G) Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is required by
the engine.
Gasoline mixture
Gasoline with alcohol or MTBE (Methyl-Tert-
Butyl-Ether)
You can use unleaded gasoline mixed with alco-
hol or MTBE (generally labeled as oxygenated
compounds) as long as the fuel meets the follow-
ing conditions:
Gasoline with methanol content (methyl alco-
hol
or methanol)
— Anti-Knock Index is at least 87 AKI
—No more than 3% methanol
— More than 2% solvent
Gasoline with ethanol content (ethyl alcohol or
ethanol)
— Anti-Knock Index is at least 87 AKI
—No more than 15% ethanol
Gasoline with MTBE content
— Anti-Knock Index is at least 87 AKI
—No more than 15% MTBE
Gasoline adapted to the season
Many gasoline fuels are adapted to the seasons.
When the season changes, we recommend refu-
eling at high-traffic gas stations. It is more likely
that the gasoline will be suitable for the season
there.
() Note
— Gasoline with methanol content that does
not meet the specified conditions may cause
corrosion damage and damage to plastic or
rubber components in the fuel system.
— Do not use gasoline that does not meet the
specifications.
— If you are unable to find out if a specific gas-
oline mixture meets the specifications, ask
the gas station operator or their fuel suppli-
er.

8V2012721BK
Checking and Filling

— Do not use any gasoline mixture whose
composition cannot be identified.
— Audi does not assume any responsibility for
damage to the fuel system or for perform-
ance problems caused by using gasoline
mixtures different from those specified.
This type of damage also does not fall under
the New Vehicle Limited Warranty or under
the emissions control system warranty.
— If you notice a higher fuel consumption or
poor handling or performance problems due
to such gasoline mixtures, we recommend
fueling with unblended gasoline.
Gasoline additives
An important issue for many automobile manu-
facturers is combustion residue in the engine
that results from the use of certain fuels.
Although types of gasoline differ depending on
the manufacturer, there are similarities. Certain
substances in the gasoline may cause deposits in
the engine. Additives in the gasoline that should
keep the engine and fuel system clean do not all
function equally.
Audi recommends using TOP TIER Detergent Gas-
oline. For additional information on TOP TIER De-
tergent Gasoline, visit www.toptiergas.com.
If you use incorrect fuels over a long period of
time, the maximum engine performance may be
impaired by combustion residue.
@) Note
— Damage or malfunctions caused by the use
of incorrect types of gasoline are not cov-
ered by the New Vehicle Limited Warranty.
— Only gasoline additives that have been ap-
proved by Audi may be used.
Refueling
Fueling procedure

B8V-0111

Applies to: vehicles with conventional drive system
Fig. 239 Right rear side of vehicle: opening the fuel filler
door

B8V-0110

Applies to: vehicles with conventional drive system
Fig. 240 Fuel filler door with tank cap on
Plug-in hybrid drive*: refer to the information un-
der > page 302, Refueling.
The fuel filler door is unlocked or locked by the
central locking system.
> Plug-in hybrid drive: read and follow the in-
structions under > page 302, Opening the fuel
filler door.
>» Unlock the vehicle if necessary.
> Conventional drive system: press on the left
side of the fuel filler door to open it > fig. 239.
> Unscrew the tank cap counterclockwise.
» Place the cap from above on the open fuel filler
door > fig. 240.
> Insert the fuel pump nozzle all the way into the
fuel filler neck.
> Begin fueling. Once the fuel pump nozzle turns
off the first time, the fuel tank is full. Do not
continue fueling, or else the expansion space in
the tank will be filled with fuel. >
299

Index

Fast forwarding and rewinding (audio/video
file) eee 219
Fast forwarding (audio/video file)......... 219
EaStROULC «smear o x omowes + memes ow nent o 8 ene 197
Favorites
Media... ... eee eee eee eee eee 222
NavVigatiGniicn = = sesx =e meee + eee § ¥ neeR « 191
Telephomebscsn: ic « susie sv wens « 0 sean @ 2 een 175
Federal Communications Commission (FCC) . 377
File formats (media drives) .............. 224
Finding charging stations............... 192
Floor mats ...... 0.00... cee eee eee eee 242
Folding the rear seats................ 62, 63
Foot pedals.......... 0... cee eee eee eee 241
For the sake of the environment
Disposing of engine oil................ 310
FUGUINIG!: s x sev « 2 avon x 2 emus ¢ 2 eww 2 a Re 299
Leaks... 2.2 eee eee 305
Roof rack... 6... eee eee 64
Forward gear
Teferto Geal’s » wcss s eoswe s pean ss MowR ay es 75
Free text search... ..... see eect ence eee 154
Mediats ¢ 2 ene 2s ove 9 owen 2 een eo were 221
Navigation... .. 0... cece eee eee eee 189
Radio... .. eee eee eee eee 207
Telephone sis s & sais = ¢ seis xo eee & o 2a 179
Freeze protection
COOLANE ssiswiss & ences + @ ssncene o sonsane ow eoseeie 311
Frequency band..........c0ee eee 206, 209
also refer to Frequency band........... 206
Front airbags
Description.........6. 06. e eee ee eee 257
How they Works. = cscs ss sees ee news eee 263
Frontal collisions and the laws of physics... 246
Front center armrest. oc... 26sec ee eee es 56
Front seats. ....... 00.000 cee cece eee ee 54
ACjUStING ace = seems ts ceee s eee ee wea 239
Child restraints in the front seat......... 254
EteCle: = sass os wear a 2 mame wamen oe eee x era 298
Additives..... 0.0.0.0... cece eee eee 299
Currenticonsumption s ¢ sess + s seen ss vows: 22
FURL Gauge ers & cise wo arsine & & soureia w pave 14
Fuel tank capacity.................... 380
GOSOlING» < saws ¢ 5 Bees FF Nee + EREE ¢ SS 298
Reducing consumption................. 81
386
Fueling
Fuel filler door emergency release....... 301
Fuel tank capacity. ......... 00. ee ee eee 380
Opening the fuel filler door............ 299
FUSES: 2 ¢ mses oo omen 3 o cae oo oe oo ee 360
G
GarMenthOOks « ianws x 2 sea 2 x cam ¥ Capen 4 a ¥ 60
Gas discharge lamps............-..0005 362
GaSOUINE wars: x s swe x ¢ sete Ye eee ss eGR 298
ACGIRIVESS. = scenic ew csmmive 1 2 wsuows oo so ae 8 299
Gasoline mixture ..............000e eee 298
GAWR
refer to Gross Axle Weight Rating (GAWR) . 380
Gears... ee eee 75
Glossary of tire and loading terminology... 322
Glove compartment.............. 00. eee 60
G meter
refer to Sport displays...............04. 24
Gross Axle Weight Rating (GAWR)........ 380
Gross Vehicle Weight Rating (GVWR)...... 380
GVWR
refer to Gross Vehicle Weight
Rating (GVWR) « s suas x 2 seme 2 o eee «8 oe 380
H
Handsfree............-.2-.-.-.-0-00-0200 000s 170
Hands Free Profile..................... 170
Headlight range control...............005 43
Headlights........ 0... ccc eee eee eee 43
Cleaning.......... 00. e eee eee eee eee 343
Headlight range control................ 43
Washer system...........--00 0 eee eae 49
Head restraint « cseuios «x cuseaus ov cnuane a aimee 0 56
Adjusting ........... 0c cece eee eee 56, 57
Removing and installing................ 57
Heated
Exterior Mirrors's 2 ccs so mows oo seen 3 2 cers 47
ROA WINE OWs cre: + sistiene co 0 ssiesaion 0 anatase 5: ee 67
Seats... eee eee eee 67
Washer fluid nozzles cuss casa ss ceva s ¢ oe 49
Heated steering wheel...............-.5. 68
Heavy clothing and safety belts.......... 248
Hex socket...........20.0202..0000000005 348