2021 AUDI A6 fuel filler

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.
238
@) 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 >

4K0012721BE
Checking and Filling

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.
— 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, Audi recom-
mends 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
Messages
A Tank system: malfunction! Please contact
Service
There is a malfunction in the fuel tank system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
Fueling procedure


Fig. 154 Right rear side of the vehicle: opening the fuel
filler door



Fig. 155 Fuel filler door with attached fuel cap
The fuel filler door is unlocked or locked by the
central locking system.
> Unlock the vehicle if necessary.
> Press on the Left side of the fuel filler door to
open it > fig. 154.
> Unscrew the tank cap counterclockwise.
> Place the cap from above on the open fuel filler
door > fig. 155.
> 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
239
>

Checking and Filling

continue fueling, or else the expansion space in
the tank will be filled with fuel.
>» After the fuel pump has switched off, wait five
seconds before removing the nozzle to allow
the rest of the fuel to finish dripping into the
fuel tank.
> Turn the fuel cap clockwise until it clicks into
place.
> Close the fuel filler door and then press on the
left side until it latches.
The correct fuel type for your vehicle can be
found ona label located on the inside of the fuel
filler door. For additional information on fuel, see
=> page 238.
For the tank capacity in your vehicle, refer to the
Technical Data > page 314.
To reduce the risk of fuel leaking out or vapors
escaping, make sure that the fuel tank is closed
correctly. Otherwise the EY indicator light will
turn on.


ZA\ WARNING
Improper fueling procedures and improper
handling of fuel can lead to explosions, fires,
severe burns, and other injuries.
— Do not smoke. Keep away from open flames.
— The ignition must be switched off when re-
fueling.
— Mobile devices, radio devices, and other ra-
dio equipment should always be switched
off when refueling. Electromagnetic rays
could cause sparks and start a fire.
— If you do not insert the fuel pump nozzle all
the way into the filler tube, then fuel can
leak out. Spilled fuel can ignite and start a
fire.
— Never get into the vehicle when refueling. If
there is an exceptional situation where you
must enter the vehicle, close the door and
touch a metal surface before touching the
fuel pump nozzle again. This will reduce the
risk of electrostatic discharge that can cause
flying sparks. Sparks can start a fire when
refueling.

ZA WARNING
Audi does not recommend transporting fuel
containers inside the vehicle. Fuel could leak
out of the container and ignite, especially dur-
ing an accident. This can cause explosions,
fires, and injuries.
— If you must transport fuel in a fuel contain-
er, note the following:
— Always place the fuel container on the
ground before filling. Never fill the fuel
container with fuel while it is inside or on
the vehicle. Electrostatic discharge can oc-
cur while refueling and the fuel vapors
could ignite.
— When using fuel containers made of met-
al, the fuel pump nozzle must always re-
main in contact with the container to re-
duce the risk of static charge.
— Insert the fuel pump nozzle as far as pos-
sible into the filler opening while refuel-
ing.
— Follow the applicable legal regulations in
the country where you are driving when
using, storing and transporting fuel con-
tainers.
— Make sure that the fuel container meets
the industry standards, for example ANSI
or ASTM F852-86.




)) Depending on the engine and country
240
() Note
— Remove fuel that has overflowed onto any
vehicle
components immediately to reduce
the risk of damage to the vehicle.
— Never drive until the fuel tank is completely
empty. The irregular supply of fuel that re-
sults from that can cause engine misfires.
Uncombusted fuel may enter the exhaust
system and increase the risk of damage to
the catalytic converter.
@) For the sake of the environment
— Do not overfill the fuel tank, or fuel could
leak out when the vehicle is warming up.
— Fuel should never enter the sewer system or
come into contact with the ground.

4K0012721BE
Checking and Filling

@ Tips
The fuel filler door on your vehicle does not
lock if you lock the vehicle from the inside us-
ing
the central locking switch.
Fuel filler door emergency release
Applies to: vehicles with manual fuel filler door release

If the central locking system malfunctions, the
fuel filler door can be unlocked manually.

Fig. 156 Version @)/ version @) Right cover in the luggage
compartment: removing the cover


Fig. 157 Luggage compartment: fuel filler door emergency
release
The emergency opening mechanism is located
behind the right cover in the luggage compart-
ment.
> Remove the screwdriver from the vehicle tool
kit > page 286.
> Insert the flat side of the screwdriver carefully
into the slot between the side trim panel and
the cover > fig. 156 (arrows) and pry out the
cover. Keep in mind that a power cable for the
socket is located on the rear side.
> To unlock the fuel filler door, loosen the red
loop from the retainer and then pull on the
loop carefully > fig. 1579@©.
> Press on the left side of the fuel filler door to
open it > page 2339, fig. 154.
® Note
Only pull on the loop until you feel resistance.
You
will not hear it release. If you continue to
pull, you could damage the emergency re-
lease mechanism.
Emissions control
system
General information
ZA WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
— Never touch the exhaust tail pipes once they
have become hot. This could result in burns.
— Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the emissions sys-
tem could start a fire.
— Do not apply underbody protectant in the
exhaust system area, because this increases
the risk of fire.
Catalytic converter
Observe the safety precautions > page 241, Gen-
eral information.



The vehicle may only be driven with unleaded
gasoline, or the catalytic converter will be de-
stroyed.
Never drive until the tank is completely empty.
The irregular supply of fuel that results from that >
241

Checking and Filling

4K0012721BE
® Note thorized Audi dealer or authorized Audi
Service Facility to determine the cause.
Please note that an exact oil consumption
measurement must be done with the neces-
If the engine oil level is too low or too high,
there is a risk of engine damage.
@ ) sary care and accuracy and may take time.
Tips An authorized Audi dealer or authorized
The oil level indicator in the display is only an Audi Service Facility is trained in accurately
informational display. If the oil level is too measuring the oil consumption.
low, a minimum oil warning appears in the in- — You can find information on engine oil and
strument cluster. Add oil and close the hood. engine oil capacities for the USA at www.
The current oil level will be displayed on the audiusa.com/help/maintenance, or for Can-
MMI the next time the ignition is switched on. ada at www.audi.ca/ca/web/en/
customer-area/care-and-maintenance/
@) Tips audi-service-schedules.html, or call
The engine oil consumption may be up to 800-822-2834.
0.5 quart/600 miles (0.5 liter/1,000 km), de-
pending on driving style and operating condi-
tions. In RS models, the oil consumption may
be up to 1 qt/600 mi (0.8 L/1,000 km). Con-
sumption may be higher during the first
3,000 miles (5,000 km). The engine oil level
must be checked regularly. It is best to check
each time you refuel your vehicle and before
long drives.
— Because of the Lubrication and cooling of
the engine, combustion engines consume
oil. The oil consumption varies depending
on the engine and may change during the Fig. 161 Engine compartment: engine oil filling opening
service life of the engine. Engines generally covet Sxem BE)
consume more oil at the beginning during
the break-in period. Then oil consumption
stabilizes after the break-in period.

RAZ-0072|


Observe the safety precautions > page 242, Gen-
eral information.
— Under normal conditions, oil consumption > Turn the engine off.
depends on the quality and viscosity of the > Open the hood > page 243.
oil, the engine RPM, the climate conditions, >» Unscrew the cap %~ for the engine oil filler
and the road conditions. The dilution of oil opening > fig. 161.
from condensation or fuel residue as well as > Carefully add 0.5 quart (0.5 liter) of the correct
the age of the oil also play a role. Because oil > page 245.
engine wear increases with mileage, oil con- > Close the engine oil filler opening cap.
sumption will increase again over time until > Close the hood = page 243.
it may be necessary to replace worn compo- > Restart the ignition after two minutes and read
nents. the current oil level in the MMI > page 246,
— Because all these variables play a role, it is Checking the engine oil level.
not possible to define an oil consumption » Applies to: using engine oil that meets the rec-
standard. Therefore, the oil level must be ommended specification: Add some more en-
checked regularly. gine oil again if necessary.
— If you believe that your engine has in-
creased its oil consumption, contact an au-
247

4K0012721BE
Fuses and bulbs














Fuse panel (2) (brown) Fuse panel (2) (black)
4 |Head-up display Luggage compartment lid central locking,
Climate control system, fragrance system, 11 | fuel filler door, sunshade, luggage com-
5 ionizer partment cover
9 |Steering column lock 12 |Luggage compartment lid control module
Fuse panel (2) (red)
No. Equipment
1 |Suspension stabilization control module
2 |Service disconnect switch
4 |Electric drive system
5 | Brake system, brake booster
6 |High-voltage battery water pump
7 |Auxiliary climate control
8 |Climate control system compressor
9 |Auxiliary battery control module

10 | High-voltage battery

11 |High-voltage charger

14 |Thermomanagement, water pump

15 | Thermomanagement control module


Fuse panel (3) (brown)

No. | Equipment

1 | Driver assistance systems control module


2 | Audi phone box
Fig. 190 Luggage compartment floor: fuse panel with
plastic clip

Front seat electronics, right lumbar sup-










a port
Fuse panel (@) (black) 4 |Side assist
No. | Equipment 5 |Rear climate control system control panel,
1 | Thermal management Infotainment system control panel
3 | Passenger’s side rear safety belt tensioner 6 |Tire pressure monitoring system
4 |Driver’s side rear safety belt tensioner 7 |Emergency call system
5 |Air suspension/suspension control 8 Auxiliary heating radio receiver, tank mod-
6 |Automatic transmission control module ule
7 |Rear sliding sunroof, rear spoiler 9 |Automatic transmission selector lever
8 |Rear seat heating 10 TV tuner, data exchange and telematics
9 | Convenience system control module, left centro mouule
tail light
ll Convenience access and start authoriza-
10 | Front belt tensioner on driver's side tion control module
12 | Garage door opener

13 | Rearview camera, peripheral cameras


301

4K0012721BE

Exterior lighting’. « cic w+ een we cece ee eee
ExXteniOrMirrOrSies « i sie oe een wo meses 0 oo
Folding settings...............-.000005
External voice operation.................
E
Factory default settings
Multi Media Interface.................
Fast route............ 0.0... c eee eee
FAVOTitess. « «. nec o 0 snvasns o 0 essen © orenemene @ aveneas
Bluetooth ...... 0.0.0... eee eee eee
Navigation’: + = soo: » 3 sams ¢ 9 aewe eo meee:
MelepMO Mens: « wcannse « suaous ws « voneome «+ amesione
Federal Communications Commission (FCC) .
File formats (media drives) ..............
FIXtUPE:S@tios « s wens s = eyes ¢ 2 eee go ee oe
Fog WVINdOWS)icu: « s sees » 2 eee 3 8 ewer & see
Folding the rearseats.............-.0005
Footwell temperature.............2.000-
For the sake of the environment
ERAQTAN EC ec. oo. vance « 6 osecmns © eoerone eo seasons 93)
Free text search
also refer to Intelligent search..........
Freeze protection
Windshield washer system.............
Frequency band.............00e eevee
also refer to Frequency band...........
Front center armrest...........-.-2-0-05
Front collision warning
refer to Audi pre sense front............
Front passenger’s seat adjustment
Front wiper blades
ChaNnGing’s ¢ « sess zs mess +o wees sense aa
Gl@ANIING « # sss = @ cococes @ a cere ew eernaine =o eet
Current consumption...................
Puebdisplay saws « x seme = 9 ees 5 o Hows eos
311
228
Fueltankecapacity:s « sce «5 wee v renee = 314
Gasoline... . eee eee eee 238
Reducing fuel consumption............ 103
Fueling
Fuel tiller door iu = 2 ssemvs 2 same av anoen a9 aoe 239
Fuel filler door emergency release....... 241
Fuel tank capacity............--..00-. 314
Functions on demand.................. 194
Functions that require a license.......... 194
also refer to Functions on demand....... 194
G
Garage door opener............---000eee 50
Garment hooks ............00 cece eee eee 85
Gasoline... 2.0... cece eee eee eee 238
AUdItiVeS< = ems ss meme 2 e pee y ¢ owes os x 239
GaSOliMeMMIXGUEe wsicsies sw awcsase ow avavene o o ima 238
GAWR
refer to Gross Axle Weight Rating (GAWR) . 314
GearSs. « a seca « o eames «coe 2 eve a MeaeR wo 98
Glossary of tire and loading terminology... 259
GlovercompParttieNnt wows « ¢ ese x x ewe 8 eee 85
Valet parking. .......... cece eee eee eee 49
G meter
refer to Sport displays...............00. 16
Gross Axle Weight Rating (GAWR)........ 314
Gross Vehicle Weight Rating (GVWR)...... 314
GVWR
refer to Gross Vehicle Weight
Rating (GVWR) = see: xs seme © 2 eee & 2 ee 314
H
HanOStrees « x saaa 2 aaa 8 ¢ ease & s HaveR GB Be 182
Hands Free Profile..............000000 182
Head-up display
AGjUStING wes « 2 eees 2» eee cs ween 2 2 eee = 27
Adjusting the brightness................ 58
Operating. ......... 2.0. c eee eee eee 27:
Headlight range control...............005 53
Headlights
Cleaning. ........ 0... eee ee eee eee 281
Headlight range control................ 53
Washerisystemis « «acne ow acioe v vemmee ¥ ene 60
Washer system (filling washer fluid) .... . 254
319

Index

Multifunction steering wheel
Buttons... 0.0... 2 eee eee 13,31
OPGrAtING's + eswe x x wee se RaeE se BemE 6 2 ES 13
Programming buttons.................. 31
Voice recognition system............... 28
Multi Media Interface..............00005 20
Menus and symbols..............2+-05- 21
Operating’: + wen « + wees a » mone so wey 18, 21
Switching the displays on or off.......... 20
MAUELING js os: ssneas oe sxsuees 6 a suswers 8 a anon & a oxeus 31
MYAUGL 5 & swans & seas oe ere @ ware ¥ 32, 193
myAudi navigation............... 200, 203
MYyAUGi USERS « sau: 2 « cays 3 s semen ae ae a ee 32
N
Natrow ar@asea: ss sass ts wens de bees yore 147
Natural leather care and cleaning......... 283
Navigation...............0..0..02000. 200
B@ttGrTOUtGies « « gems « ¢ aes « paee 5 2 pe 209
GAU MG secos 6 o cscssine & casecs wo rennin wow cae wo 203
Changing thescale................-.. 203
also réfer'to Map « «ns << news ss cows a eo 204
Navigation database
Version information’ « « ssisasw so sec oo veies 236
Navigation (instrument cluster) .......... 206
N@ts « ews 2 i owen 2 eres oe ees ee eee ce 85
WHIGAs « cows a & ew 4 ¢ Raney < § tows 7 5 em 310
Night vision assist...............-.0005 132
Cleaning the camera...........2.-.0.. 281
Notificationicenter’: « sox + vanes + sex os new 23
O
Octane rating (gasoline)................ 238
Odometer......... 0... c eee eee eee eee 15
RESPttING is: + < sews 2 ¢ sews 8 ewe es ee 15
Office address
refer to Business address.............. 206
Offroad
refer to Offroad driving................ 110
Offroad
ArIVIAG az «= suawine «x eoenens w x eaves @ v one 110
OFF (climate control system) .............. 92
Oil
refertoEngineoil...............00005 245
On-board'computer. «5 sscca sc sewaee sv arene 0 17
On Board Diagnostic System (OBD)... 242, 303
322
Online map

refer to Satellite map................. 207
Online radio...................0..000. 216
also refer to Online radio.......... 216, 217
Online roadside assistance.............. 198
Online services
réferto CONnNECts <= sacs «> vee ee pees yes 192
Online system update.................. 234
Online traffic information............... 209
Opening. ..... ccc cee cece eee eee eee 35
Automatic luggage compartment lid...... 43
Convenience Openings « « ws s vss 6 wer a 48
Fuel filler door.......... 0.000000 0 eee 239
HOOds « sees 5 5 open ¢ 5 een g 2 ee RE ees 243
Luggage
compartment lid............... 43
Luggage compartment lid with foot motion . 44
Panoramic glass roof................05. 48
Surishade (rOOf) ir « o seinew « o ewes 2 osm vo 48
WAICOWSE. « « suse ow seston & 0 corsane =o wmeieine «wie 47
Opening and closing
refer to Unlocking and locking........ 35,40
Operating
Head=tip displaycs s s swe » 2 meme s y eee a ee 27
Instrument:cluster » sisini s waver s warn oe we 13
Multifunction steering wheel............ 13
Multi Media Interface............... 18, 21
TAXEIN PUG 0 » comes o somes a o meee ao oe 8 eo 25
Touch display.......... 0.00 eee eee eee 18
Voice recognition system............... 28
Optional equipment number............. 313
Options
Médidws < » aeex sw oem ss eae & s eeu © e oes 227
RAGIO sxisacs uo smisans 2 x amivews % o onewaun 2 v aueaeie 8 207
Overview (cockpit) ......... ccc eee ceee eee 6
Pp
Paint Cod@\s. « 2 sees sp sews 2 ¥ oes ee ews ee
Paint: damages. : + snes < s meee ov pea sore
PANIC button. ..................00000 08
PANIC function .............0 eee eee eee ee
Panoramic glass roof
Convenience opening and closing......... 48
Emergency closing..........sceeseveees 49
Quick opening and closing.............. 49
Parental control
1D 227