2018 AUDI Q7 fuel additives

Checking and Filling
Checking and Filling Fuel
Gasoline grade
A pp lies to: ve hicles w ith 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. Additional information on TOP TIER Deter­
gent Gasoline can be found on the official web­
site (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 following headings match the corresponding
sticker in the fuel filler door .
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular/ MIN. RON 91 Regular
Use regular gasoline with minimum 87 AKI/
91 RON
i::>@ .
The max imum eng ine power is only reached if
p rem ium gasol ine 91 AKI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gaso line 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 th e engine powe r slight ly.
0 Note
- Fillin g the tank just one time with leaded
fuel or other metallic additives will cause
permanent deter iorat ion to the catalytic
converter function.
- When gasoline with an octane rat ing that is
too low is used , h igh speeds or heavy engine
load can lead to engine damage.
310
(D Tips
The vehicle may be filled with fuel that has a
h igher octane rating than what is required by
the eng ine.
Blended gasoline
App lies to : vehicles wi th gaso line e ngi ne
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
You may use unleaded gasoline blended with al ­
cohol 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 h igher.
- 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 AK I or h igher.
- 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 iv ing . Dur­
i ng seasonal change-over, we suggest that you
fill up at busy gas stat ions where the seasonal
adjustment is more lik ely to be made in t ime.
@ Note
- Methanol fuels which do not meet these re­
quirements may cause corrosion and dam­
age to plastic and rubber components in the
fuel system.
- Do not u se fue ls that fail to meet the speci-
fied criteria in this chapter. ...

Cl a:, ...... N
" N ...... 0
0
::r ' -If you are unable to determine whether or
not a particular fue l blend meets the speci ­
ficat ions, 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 ­
l ems resulting from the use of fue ls differ­
ent from those specif ied are not the respon­
s ibility of Audi and are not covered under
the New Veh icle or the Emiss ion Control
System Warrant ies .
- If you experience a loss of fue l economy or
driveability and performance problems due
to the use of one of these fuel blends, we
r ecommend that you switch to unblended
fuel.
Gasoline additives
A ma jor concern among many auto manufactur ­
ers is carbon deposit build-up caused by the type
of gasoline yo u use.
A lthough gasoline grades d iffer from one manu­
facturer to another, they have certain things in
common . A ll gasoline grades contain substances
that can cause deposits to collect on vita l engine
parts, such as fue l injectors and intake valves. A l­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective .
Audi recommends using TOP TIER Detergent Gas­
oline. For more informat ion on TOP TIER Deter­
gent Gasoline, please go to the official website
(www .toptiergas .com) .
After an extended period of using inadequate
fuels, carbon deposit build-ups can rob your en­
g ine of peak performance.
@ Note
Damage or malfunction due to poor fuel q ual­
ity is not covered by the Aud i New Vehicle
Limited Warranty.
Ch eck ing and F illing
Diesel fuel
App lies to : veh icles w it h diese l eng ine
Always use U LSD (Ult ra Low Sulfur Diesel) No. 2.
T he ULSD No. 2 meets the AS TM D975.
D iesel fuel w ith concentrations of b iod iesel h igh­
er than 5
% such as B 11, B20 or B100 are strict ly
proh ib ited.
Service station fuel pumps are labeled with the
correct fuel information for easy recogn it ion by
the user . If the d iesel fue l pump is not labeled
ask the station operator what fuel is being dis ­
pensed before fill ing up your vehicle.
U LSD No . 2 may not be ava ilable outside the USA
and Canada . Be su re to check befo re traveling to
othe r countr ies.
ULSD No . 2 can become thicker in very cold tem­
peratures, and th is can impa ir the engine's start­
i ng and runn ing . Depend ing on the season , gas
stations provide ULSD No. 2 that flows bette r in
co ld tempe ra tures so that you can co nti nu e ope r­
at ing you r vehicle as usual.
{Qj) Note
- Yo ur vehicle's d iese l eng ine was des igned
so ley for use w ith ULS D No. 2. Therefo re,
never use gasoline, heating oil, other f uels
or flow improvers. These contain s ubstances
that will severely damage the fuel system
and the engine. Such damage will not be
covered by your New Vehicle Limited War­
ranty.
- If you put any amo unt of incorrect fuel in
the fuel tank, do not start the engine under
any c ircumstances. Immed iately contact the
nearest author ized Audi dealer or author­
ized Aud i Serv ice Facility fo r ass istance.
Th ese f uels con ta in substa nces that can se­
verely damage the fuel system a nd the en ­
gine if the engi ne is st arted.
311

Index
F ront airbags
Description . . . . . . . . . . . . . . . . . . . . . . . . .
273
How they work ..... .. ..... ... .. .. ... 279
Frontal co llisions and the laws of p hys ics . . 262
Front seats
Adjusting . . . . . . . . . . . . . . . . . . . . . . . . . .
254
C hi ld rest raints in the front seat . . . . . . . . 270
also refer to
Seats . . . . . . . . . . . . . . . . . . . . 54
Fue l .. .... .. .. .. ............. .... .. . 310
Addit ives . . . . . . . . . . . . . . . . . . . . . . . . . . . 310
Blended gasoline . . . . . . . . . . . . . . . . . . . . 310
Current cons umption . . . . . . . . . . . . . . . . . . 1 6
Fue l gauge . . . . . . . . . . . . . . . . . . . . . . . 10, 12
Fue l tank capa city . . . . . . . . . . . . . . . . . . . 375
Gasoline . .. .. .. ............. .... .. . 3 10
Gasoline additives . . . . . . . . . . . . . . . . . . . 3 11
Saving fue l . . . . . . . . . . . . . . . . . . . . . . 7 4, 128
Fue ling
F ue l fi ller door emergency release . . . . . .
3 14
Fue l gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 12
F ue l tank capac ity . . . . . . . . . . . . . . . . . . . 375
Opening the fuel filler door . . . . . . . . . . . . 3 12
Fuses
Assig nment . . . . . . . . . . . . . . . . . . . . . . . .
365
Replac ing . . . . . . . . . . . . . . . . . . . . . . . . . . 364
G
Garage doo r opener
refer to Home link . . . . . . . . . . . . . . . . . . . . 4 1
Garment hooks . . . . . . . . . . . . . . . . . . . . . . . . 62
Gas discharge lamps . . . . . . . . . . . . . . . . . . . 368
Gasoline 3 10
Octane rat ing . . . . . . . . . . . . . . . . . . . . . . . 3 10
Recommendat ion . . . . . . . . . . . . . . . . . . . . 3 10
GAWR
refer to Gross Axle We ight Rat ing (GAWR) 3.76
Glossary of tire and loading termino logy .. 333
Glove compartment . . . . . . . . . . . . . . . . . . . . 6 2
Gross Axle Weig ht Rating (GAWR) . . . . . . . 376
Gross Vehicle Weight Rating (GVWR) . . . . . 37 6
Ground clearance . . . . . . . . . . . . . . . . . . . . . . 84
GVWR
refer to Gross Ve hicle We ight
Rating (GVWR) . . . . . . . . . . . . . . . . . . . . . .
376
386
H
Handsfree . ... .. ...... ... .. ..... ... .. 174
Head-up d isp lay . . . . . . . . . . . . . . . . . . . . . . . 17
Head light range contro l system . . . . . . . . . . 43
Hea dlights . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 52
Head light range cont ro l system . . . . . . . . . 43
Washer system . . . . . . . . . . . . . . . . . . . . . . SO
Head rest raints . . . . . . . . . . . . . . . . . . . .
58, 255
Adjus ting . . . . . . . . . . . . . . . . . . . . . . . . . . 2 55
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Heavy clothing and safety be lts . . . . . . . . . . 264
Hig h beams . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Ass ista nt . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4
Hill descent assist . . . . . . . . . . . . . . . . . . . . . 144
Hill descent control . . . . . . . . . . . . . . . . . . . . 88
Hill ho ld assist . . . . . . . . . . . . . . . . . . . . . . . . 83
also refer to
Hill hold assist . . . . . . . . . . . . 83
Home address ... .. .. .. ........... 205,210
Homelink . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Hor n . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
How are chi ld restraint system anchors relat -
ed to c hil d safety . . . . . . . . . . . . . . . . . . . . . 305
How many airbags does my vehicle have? . .
2 76
How safety belt pretensioners work . . . . . . 267
I
Imbalance (wheels) 339
I mmobilize r . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Impo rtant th ings to do before dr iv ing . . . . 252
Importing and exporting (contacts) . . . . . . 184
Imprope rly wo rn safety belts . . . . . . . . . . . 2 67
Incline ang le . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Indicator lights . . . . . . . . . . . . . . . . . . . . . . . . 18
Airbag system . . . . . . . . . . . . . . . . . . . . . . 281
PASS ENGER AIR BAG . . . . . . . . . . . . . . . . . 281
Infan t seats . . . . . . . . . . . . . . . . . . . . . . . . . 2 9 7
Inp ut
U sin g the MMI touch . . . . . . . . . . . . . . . . .
153
U sing the speller . . . . . . . . . . . . . . . . . . . . 157
Input level (media) . . . . . . . . . . . . . . . . . . . . 237
Inspection in terv al . . . . . . . . . . . . . . . . . . . . 3 28
Installing the upper tether strap on the an -
cho rage . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
308