2021 AUDI A4 octane

8W1012721BC
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.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 93 / SUPER PLUS MIN. RON 98
Using premium plus gasoline with at least 93
AKI / 98 RON is recommended.
If no premium plus gasoline is available, you can
also use premium gasoline with 91 AKI /95 RON.
However this does reduce the engine power
slightly.
CG) 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.
@ 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, refueling at high-traf-
fic gas stations is recommended. 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 >
217

8W1012721BC
Accessories and technical changes

Accessories and
technical changes
Warranty
Your vehicle is covered by various warranties:
— New Vehicle Limited Warranty
— Limited Warranty Against Corrosion Perforation
— Emissions Control System Warranties: Federal
Emissions Control System Defect Warranty,
Federal Emissions Performance Warranty
— Applies to: USA models: Kansas Safety Belt
Limited Warranty
— Applies to: USA models: California Emissions
Control Warranties: Short-term Emissions De-
fects Warranty, Long-term Emissions Defects
Warranty, TZEV models Emissions Defects
Warranty, California Emissions Performance
Warranty
You can find detailed information in your Warran-
ty & Maintenance Booklet and in the California
Emissions Booklet*.
Audi Literature Shop
Service information is made available as soon as
possible after a model is introduced and can be
ordered in the Audi Literature Shop: http://
literature.audiusa.com
Driving in other
countries
Government regulations in the United States and
Canada require motor vehicles to comply with
emissions regulations and safety standards.
Therefore, vehicles that were produced for the
U.S. and Canadian markets are different from
vehicles produced for other countries.
If you plan to use your vehicle outside of the
United States or Canada, it is possible that:
— Fuel may have a significantly lower octane rat-
ing. Unsuitable fuels can cause engine damage.
— Proper maintenance and repair work may not
be possible because special service equipment,
tools, or measuring devices needed for your ve-
hicle may not be available.
— Replacement parts may not always be availa-
ble.
— Navigation systems for vehicles built for the
U.S.A. and Canada will not necessarily work in
Europe, and may not work in other countries.
() Note
Audi is not liable for damage to the vehicle re-
sulting from these country-specific differen-
ces.
Maintenance, repairs,
and technical modifi-
cations
Observe the safety precautions > page 221, Gen-
eral information and > page 264, Raising the ve-
hicle.
General information
Due to the increasing complexity of technology in
these vehicles, as well as the safety and environ-
mental standards that apply, you can only per-
form a very limited amount of repairs and modifi-
cations to the vehicle yourself.
Proof of maintenance work may be required to
submit a claim within the warranty period.
We recommend that you have your vehicle serv-
iced by an authorized Audi dealer or authorized
Audi Service Facility and that Audi Genuine Parts
and Audi Genuine Accessories are used. This
helps to ensure that your vehicle's functionality,
performance, and safety are not impaired.
Maintenance and repairs
Your vehicle was designed to help keep mainte-
nance requirements to a minimum. Some regular
maintenance is required to help ensure that your
vehicle runs in a safe, economical, and reliable
manner. Please refer to your Warranty & Mainte-
nance Booklet for more detailed information
about vehicle maintenance.
When operating the vehicle under more extreme
operating conditions, for example when outside
temperatures are very low or in very dusty envi-
ronments, certain maintenance should be per-
formed between the specified intervals.
281

8W1012721BC
Index

myAudi navigation................. 181, 184
MYAUI USERS asscver s 6 ease ae enue 2 eee oY oes 30
N
Natural leather care and cleaning......... 258
NaVIGAEION ccs < = cece vo eres se Hees ee oe 181
Betterrouteiis «i ccs + 2 anzens 0 cnwisme «6 cans 190
Calling... 2... eee eee eee eee 184
Changing the scale............0. ee eee 184
alsorrefer'to. Map « sss «= ews + 2 cies owes 185
Navigation database
Version information.............00005 215
Navigation (instrument cluster).......... 187
NHTSA es cases x x wana 4 x mmios oe wimaioe we omc 283
Notification center sci ¢ o ssesce so sae os ese 22
Oo
Octane rating (gasoline)................ 217
QOGOMELET way « ¢ wows & 2 wes 4 bee ee ee 1S
ReSettingien & : acum sv anm © o wties & a samen a 15
Office address
refer to Business address.............. 187
Offroad
refer to Offroad driving................ 108
Offroad
driving.......... 20sec eee eee 108
FEC
DUGEOM) wiccons = 2 exeses we stein «6 ansonoe 9 w noe 91,
Oil
refertoEngineoil.................... 224
On-board computer.............00 0-0 eee 16
On Board Diagnostic System (OBD)... 220,277
Online map
refer to Satellite map................. 188
Online radio...................0.00005 197
also refer to Online radio.......... 197,198
Online roadside assistance.............. 179
Online services
fefer tO CONNEC’: « ees ¢ ¢ eyes ce ew se He 173
Online system update.............00005 213
Online traffic information............... 190
Opening. ....... 6. eee eee cece 33
Automatic luggage compartment lid...... 41
Convenience opening...........-...005- 46
Fuel filler door...........00 eee cece eee 218
HOGG 's scvse © s mame 2 ¢ eR & 2 ERE § ee Ge 222
Luggage compartment lid............... Al
Luggage compartment lid with foot motion . 42
Panoramic glass roof............00 eee ee 47
Sliding/tilting sunroof..............0005 46
Sunshade (roof) « « wcscine ow cence mv owarne wa ow 47
Windows ...... 0... e cece eee eee eee eee 45
Opening and closing
refer to Unlocking and locking........ 33,38
Operating
Head-tip displayins « x aims s aaes = news ex xe 25
Tnstrumenticluster sissies i asians a o asneaine ow soi 13
Multifunction steering wheel............ 13
Multi Media Interface............... 17,20
TeXtINPUBss 2 2 cones ws wramrs x x seen oa ewe a ee 23
Touch display.......... 0... c eee eee eee 17
Voice recognition system............... 26
Optional equipment number............. 286
Options
Médias: = » saes ¢ = eae 9 e ames 5 © ews 3 ee 207
RaGiOiics so awinia 6 7 seanine 6 aa 6 cimRE Yo 8 198
Overview (Cockpit). cs sina ov arenas v6 aries a 6 ose 6
P
PaintiCOd Gis ¢ wees sv ween oe mews ae ees oa 286
Paint damageé:s:. = ¢ sees ss eees y = ewes se eee 257
PANIG BUttOMTs « » snus = 2 ame seme oY 37, 38
PANIC function ..............0 0c eee eens 37
Panoramic glass roof................-04. 47
Convenience opening and closing......... 46
Emergency closing: . iwc. scenes cowed ee 47
Quick opening............... eee eee eee 47
Park assist. ........ 0... ccc e eee eee eee 159
Parking. .... 0... cece cece eee eee 96
Parking aideecs os csvsens vo somes ve ssecers oa mse 150
Adjusting the volume................. 151
Automatic activation................4. 150
Cleaning the sensors/camera........... 256
Park assist... 20... eee eee eee eee 159
Parking aid plus: : sss ss sees se ewes 5 es 150
Parking space search................05. 157
Peripheral cameras...........--.000-5 152
REAlVIEW CAMEL a eins «i oes bs aes 5 a oe 152
Parking and maneuvering.............-- 150
Parking brake
refer to Electromechanical parking brake. 106
Parking lightSic 295