2018 AUDI TT ROADSTER fuel additives

Cl 00 .-< N r-­N .-< 0 r-­Vl 00
Checking and Filling Fuel
Gasoline grade
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
unl ead ed g asoline.
Audi recommends using TOP TIER Detergent Gas­
oline. Additiona l information on TOP TIER Deter­
gent Gasoline can be found on the offic ial web­
site (www .topt iergas.com).
The individua l gasoline grades are differentiated
by
oc ta n e ra ting s. This value is given with (R +M)/
2 equating to AKI or in RON.
The fo llowing headings match the corresponding
sticker in the fuel fi ller door .
UNLEADED FUEL ONLY MIN. (R+M )/2 8 7
R egula r/ MIN. RON 91 Regula r
Use regu la r gasoline with minimum 87 AKI/
91 RON ~ (Di .
The max imum engine power is only reached if
prem ium gaso line 91 AKI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN . (R
+M )/2 91 / SUPER MIN. RON 95
Using prem ium gaso line with minimum 91 AKI/
95 RON is recommended.
If premium gasoline is not available, you can also
use regula r gasoline 87 AKI/ 91 RON . However
this does reduce the engine powe r sli ght ly.
{LlJ) Note
- Fill ing the tank just one t ime with leaded
fuel or other meta llic additives wi ll cause
permanent deter io rat ion to the catalyt ic
conve rter function.
- When gasoline with an octane rat ing that is
too low is used, h igh speeds o r heavy eng ine
l oad can lead to eng ine damage.
Ch eck ing and F illing
(D Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is requ ired by
the engine .
Blended gasoline
U se of g asoline cont aining alcohol or MTBE
( m eth yl tertiary butyl ether )
You may use unleaded gasoline blended with al­
cohol or MTBE (commonly referred to as oxygen­
ates) if the blended m ixture meets the fo llow ing
c riter ia:
Blend of ga soline me thanol ( wood alc ohol or
meth yl alcoh ol)
-Anti-knock index must be 87 AKI or h igher.
- Blend must contain no more than
3% metha-
nol.
- Blend must contain more than
2% co-solvents.
Blend of g asoline a nd eth ano l (g ra in a lcoh ol o r
eth yl alc ohol )
-Anti-knock index must be 87 AK I or h igher.
- Blend must not conta in more than
15% etha-
nol.
Blend of g asoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend must not contain more than
15% MTBE .
Seasonally a djust ed g aso lin e
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iving . Dur­
i ng seasonal change-over, we suggest that you
fill up at busy gas stat ions where the seasonal
adjustment is mo re likely to be made in t ime .
@ Note
-Methano l fuels which do not meet these re­
quirements may cause cor rosion and dam­
age to p lastic and rubbe r components in the
fue l system.
- Do not use fuels that fa il to meet the speci­
fied cr ite ria in t his chapter.
229

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.
230
Refueling
Fueling procedure
Your vehicle is equipped with a capless fuel filler
system .
Fig. 172 R ight rea r sid e of the vehicle : ope ning the fuel
fil ler door
Fig. 173 R ig ht rea r sid e of t he ve hicle: fuel pum p nozz le
in ser ted
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
r:::;, fig . 172.
.. Insert the fuel pump nozzle all the way into the
fuel tank filler neck
r:::;, fig. 173. Make sure it is
seated correctly.
.. Begin fueling. Once the fuel pump no zzle 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 fuel tank.
.. 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 f uel
ll>

Index
Engine Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . .
239
Starting . . . . . . . . . . . . . . . . . . . . . . . . . 58, 59
Starting with jumper cables . . . . . . . . . . . 283
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Engine compartment
Opening/closing the hood . . . . . . . . . . . . .
235
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Safety precautions . . . . . . . . . . . . . . . . . . . 233
Engine control ( indicator light) . . . . . . . . . . . 14
Engine oil
Adding . . . . . . . . . . . . . . . . . . . . . . . . . . . .
236
Changing . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Checking oil level . . . . . . . . . . . . . . . . . . . . 236
Consumption . . . . . . . . . . . . . . . . . . . . . . . 236
Indicator light . . . . . . . . . . . . . . . . . . . . 12, 15
Engine speed limitation (indicator light) . . . 15
Entering characters/numbers (speller) . . . . . 99
Entering letters (speller) . . . . . . . . . . . . . . . . 99
Environment
Proper disposal of drained engine oil ... .
Unleaded gasoline .................. .
E xterior lighting
Exterior mirrors
238
229
38
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Dimming ....... ................ ..... 42
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
External voice operation......... .... .. . 110
F
Factory default settings (MMI) 174
Fader(sound) .. .. ............. .... .. . 177
Fa sten ing
Booster seats . . . . . . . . . . . . . . . . . . . . . . .
223
Convertible child safety seats . . . . . . . . . . 222
Infant seats . . . . . . . . . . . . . . . . . . . . . . . . 221
Fast forward ing/rew inding (audio/video
file) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
162
Fast forwarding (audio/video file) . . . . . . . . 162
Fast route
Favorites Media 141
165
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 136
Telephone.......................... 116
Federal Communications Commission (FCC) 293
Fi le formats (media drives) . . . . . . . . . . . . . 168
298
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Fog lights/rear fog light(s) . . . . . . . . . . . . . . 38
Foot pedals . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Footwell lighting . . . . . . . . . . . . . . . . . . . . . . 40
For the sake of the environment
Environmentally-friendly driving . . . . . . . .
56
Fueling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Leaks..... .... .. .. .. ............. .. 234
Free text search . . . . . . . . . . . . . . . . . . . . . . 101
Media . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164
Navigation . . . . . . . . . . . . . . . . . . . . . . . . . 135
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
Telephone. . . . . . . . . . . . . . . . . . . . . . . . . . 120
Freeze protection
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . .
239
Frequency band ..... .. ........... 149, 151
Front airbags
Description . . . . . . . . . . . . . . . . . . . . . . . . .
198
How they work . . . . . . . . . . . . . . . . . . . . . . 203
Frontal collisions and the laws of physics . . 188
Front seats
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . .
181
Child restraints in the front seat . . . . . . . . 195
also refer to Seats . . . . . . . . . . . . . . . . . . . . 46
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
229
Additives. . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Blended gasoline . . . . . . . . . . . . . . . . . . . . 229
Current fuel consumption . . . . . . . . . . . . . . 21
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fuel tank capacity . . . . . . . . . . . . . . . . . . .
288
Gasoline additives . . . . . . . . . . . . . . . . . . . 230
Indicator light . . . . . . . . . . . . . . . . . . . . . . . 15
Saving fuel . . . . . . . . . . . . . . . . . . . . . . . 56 , 78
Fueling
Fuel filler door emergency release . . . . . .
232
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fuel tank capacity . . . . . . . . . . . . . . . . . . .
288
Opening the fuel filler door . . . . . . . . . . . . 230
With reserve canister (emergency fueling) 232
Fuses
Assignment . . . . . . . . . . . . . . . . . . . . . . . .
281
Replacing . . . . . . . . . . . . . . . . . . . . . . . . . . 280
G
Garage door opener (Homelink) . . . . . . . . . . 30
Garment hooks . . . . . . . . . . . . . . . . . . . . . . . . 49