2018 AUDI A6 fuel additives

a co .... N
" N .... 0 0 \,;J ' Checking and Filling Fuel
Gasoline grade
A pplies to: ve hicles with gasoline engines
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. Additiona l information on TOP TIER Deter­
gent Gasoline can be found on the official web­
site (www .topt iergas.com).
The individual gasoline grades are differentiated
by
octane ratings. T his value is given with (R +M)/
2 equating to AKI or in RON.
The following headings match the corresponding
sticker in the fuel fi ller door.
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular/ MIN. RON 91 Regular
Use regu lar gasoline with minimum 87 AKI/
91 RON
i::> (@ .
The maximum engine power is only reached if
premium gasoline 91 AKI/ 95 RON is used.
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.
({D) Note
-Fill in g 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 eng ine damage.
Checking and Filling
(D Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is required by
the engine .
Blended gasoline
Applies to : vehicles wi th gasoli ne e ngi ne
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
You may use unleaded gasoline blended with al ­
coho l or MTBE (commonly referred to as oxygen­
ates) if the blended mixture meets the following
criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti-knock index must be 87 AKI or higher.
- Blend must contain no more than
3% metha-
nol.
- Blend must contain more than
2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
-Anti-knock index must be 87 AKI or higher.
- Blend must not conta in more than
15% etha-
nol.
Blend of gasoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend must not contain more than
15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iving . Dur­
ing seasonal change-over, we suggest that you
fill up at busy gas stat ions where the seasonal
adjustment is more likely to be made in time .
@ Note
-Methanol fuels which do not meet these re­
quirements may cause corrosion and dam­
age to plast ic and rubbe r components in the
fuel system.
- Do not u se fuels that fail to meet the speci-
fied criteria in this chapter.
.,.
185

Checking and Filling
-If you a re unable to determine whether or
not a particular fuel blend meets the speci­
fications, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identified.
- Fuel system damage and performance prob­
lems resulting from the use of fuels differ­
ent from those specified a re not the respon­
sibility of Audi and are not covered under
the New Vehicle or the Emission Control System Warranties.
- If you experience a loss of fuel economy or
driveability and performance problems due
to the use of one of these fuel blends , we
recommend that you switch to unblended
fuel.
Gasoline additives
A major concern among many auto manufactur­
ers is carbon deposit build-up caused by the type
of gasoline you use.
Although gasoline grades differ from one manu­
facturer to another, they have certain things in
common. All gasoline grades contain substances
that can cause deposits to collect on vital engin e
parts, such as fuel injectors and intake valves. Al­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective .
Audi recommends using TOP TI ER Dete rgent Gas­
oline. For more information on TOP TIER Deter­
gent Gasoline , please go to the official website
(www .toptiergas .com) .
After an extended per iod of us ing inadequate
fuels, carbon deposit build-ups can rob your
en­
gine of peak performance.
(D Note
Damage or malfunction due to poor fuel qual­
ity is not covered by the Audi New Vehicle Limited Warranty.
186
Refueling
Fueling procedure
Fig. 172 R ig ht re ar sid e o f th e ve hicle: o penin g th e fu el
filler door
Fig. 173 F uel fille r doo r with at tached fuel cap
The fuel filler door is unlocked or locked by the
central locking system.
.,. Press on the left side of the fuel filler door to
open
~ fig. 172.
.,. Unscrew the tank cap counterclockwise .
.,. Place the cap from above on the open fuel filler
door
~ fig.173.
.,. 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.
.,. After the fuel pump has switched off, wait five
seconds before removing it to allow the rest of
the fuel to finish dripping into the fue l tank.
.,. Turn the fuel cap clockwise until you hear it
lock.
.,. 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 on a label located on the inside of the fuel
.,.

a co .... N
" N .... 0 0 \.J ' Consumption Indicator light 192
14
Eng ine sound . . . . . . . . . . . . . . . . . . . . . . . . 104
Engine speed limitation (indicator light) 17
Engine Start/Stop mode
refer to Start/Stop system . . . . . . . . . . . . . 72
Engine warm-up request
I ndicator light . . . . . . . . . . . . . . . . . . . . . . .
1 7
Environment
Proper disposal of drained engine oil . . . .
194
Unleaded gasoline . . . . . . . . . . . . . . . . . . . 185
EPC (engine control) . . . . . . . . . . . . . . . . . . . . 16
ESC
Automatic post-collision brak ing system .
119
also refer to Electronic stabilization con-
tro l . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
119
ESP
refertoElectron icstabilizationcontrol . .
119
Event Data Recorder (EDR) . . . . . . . . . . . . . 124
Exterior lighting . . . . . . . . . . . . . . . . . . . . . . . 38
Exterior mirrors
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
o· . 1mmmg . .. .. ............. .. .. .. .. . . 42
Heating............................. 42
Exterior temperature display . . . . . . . . . . . . . 19
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
176
Convertible child safety seats . . . . . . . . . . 174
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 172
Federal Communications Commission (FCC) 250
Fl oor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Folding the rear seats . . . . . . . . . . . . . . . . . . . 55
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 130
For the sake of the environment
Environmentally-friendly driving . . . . . . . .
65
Fu eling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
Roof rack . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Warming up the engine . . . . . . . . . . . . . . . . 68
Fr eeze protection
Coolant
. ... .. ................ ......
Front airbags
D . t' escnp 10n ... ................ ... .. .
How they work ............... .. .. .. .
195
146
152
Index
Frontal collisions and the laws of physics . . 135
Front center armrest . . . . . . . . . . . . . . . . . . . 48
Front seats
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . .
127
Child restraints in the front seat . . . . . . . . 143
also refer to Seats . . . . . . . . . . . . . . . . . . . . 4 7
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
185
Additives. . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Blended gasoline . . . . . . . . . . . . . . . . . . . . 185
Current consumption . . . . . . . . . . . . . . . . . . 20
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 9, 10
Fuel tank capacity . . . . . . . . . . . . . . . . . . . 245
Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Gasoline addit ives . . . . . . . . . . . . . . . . . . . 186
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 17
Saving fuel . . . . . . . . . . . . . . . . . . . . . . 65, 104
Fueling
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . .
10
Fuel tank capacity . . . . . . . . . . . . . . . . . . . 245
Open ing the fuel filler door . . . . . . . . . . . . 186
Fuses
Assignment . . . . . . . . . . . . . . . . . . . . . . . .
235
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 234
G
Garage door opener (Homelink) . . . . . . . . . . 36
Garment hook . . . . . . . . . . . . . . . . . . . . . . . . . 53
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 238
G asoline . . . . . . . . . . . . . . . . . . . . . . . . . . . . 185
Octane rating . . . . . . . . . . . . . . . . . . . . . . . 185
Recommendation . . . . . . . . . . . . . . . . . . . . 185
GAWR
refer to Gross Axle Weight Rating (GAWR) 246
Glasses holder . . . . . . . . . . . . . . . . . . . . . . . .
53
Glossary of tire and loading terminology . . 204
Glove compartment . . . . . . . . . . . . . . . . . . . . 53
cooled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Valet parking function . . . . . . . . . . . . . . . . . 36
Gross Axle Weight Rating (GAWR) . . . . . . . 246
Gross Vehicle Weight Rating (GVWR) . . . . . 246
GVWR
refer to Gross Vehicle Weight
Rating (GVWR) . . . . . . . . . . . . . . . . . . . . . .
246
H
Head-up disp lay . . . . . . . . . . . . . . . . . . . . . . . 22
255