fuel additives AUDI A7 2015 Owners Manual

218 Fuel supply and filling your fuel tank
-Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
espec ially we ll for winter or summer driv ing.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea­
sonal adjustment is more likely to be made in
time.
(CT) Note
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo­
nents in the fuel system .
- Do not use fuels that fai l to meet the
specified criteria in this chapter.
- If yo u are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or
its fuel sup plier.
- Do not use fuel for which the contents cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the respons ibility 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 prob­ l ems 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 manufac ­
turers is carbon deposit build- up caused by
the type of gasoline you use.
A lthough gasoline grades differ from one
manufacturer to another, they have certain
things in common. All gasoline g rades contain
substances that can cause deposits to co llect
on vital engine parts, such as fuel injectors
and intake valves. Although most gasoline
brands include additives to keep engine and fuel
systems clean, they a re not equally effec­
tive .
A udi recommends using TOP TIER Detergent
Gasoline. For more information on TOP TIER
Detergent Gasoline, please go to the official
website (www.toptiergas.com).
After an extended period of using inadequate
f uels, carbon deposit build-ups can rob yo ur
engine of peak performance.
CD Note
Damage or malf u nct ion due to poor fuel
quality is not covered by the Aud i New Ve­
hicle Limited Warranty.
Diesel fuel
Applies to veh icles: w ith diesel engine
Always use ULSD (Ultra Low Su lfu r Diesel)
No. 2. The U LSD No. 2 meets the ASTM D975.
Diesel fuel with concentrations of biodiese l
higher than 5 % s uch as Bl 1, B2O or BlOO are
strictly prohib ited.
Serv ice stat ion fuel pumps are labeled with
the correct fuel information for easy recogn i­
t io n by the user. If the diesel fuel pump is not
labeled ask the station operator what fue l is
being dispensed before filling up your vehicle.
ULSD No. 2 may not be available outside the
USA and Canada. Be sure to check before trav­
eling to other countries.
ULSD No. 2 can become thicker in very cold
temperatu res, and this can impair the en­
gine's start ing and running. Depending on the
season, gas stat ions provide ULSD No. 2 that
flows better in cold temperatures so that you
can continue operating your vehicle as usua l.
CD Note
-Yo ur vehicle's diesel engine was de­
signed soley for use with ULSD No. 2.
Therefore, never use gasoline, heating
oil, other fuels or flow improvers. These
conta in substances that will severely
damage the fuel system and the engine.
II>

M N <( (.J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Data ...... .. .... .. .... ... .. .. ... 293
Start-Stop -System . . . . . . . . . . . . . . . . . . 81
start ing . ... .... ...... ... .. .. .. .. .. 76
Starting with jumper cab les .. .. .. .. . 285
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 77
E ng ine compartment .... ... .. .. .. .. . 22 7
C losing the hood . ..... ... .. .. .. .. . 226
Opening the hood ..... ... .. .. .. .. . 225
Safety instructions ........ .. .. .. .. . 225
Working in the engine compartment . . 225
E ng ine coolant ... ...... ... .. .. .. ... 231
Adding coolant . .. ..... ... .. .. .. ... 232
Chec king the engine coolant leve l .. .. . 23 1
Expansion tank ........... .... .. .. . 231
Malfunct ion symbo l ....... .. .. .. .. .. 16
Radiator fan .............. ... ... .. 233
Temperature gauge ........... ... ... 11
Engine oil ... .... .. .... ... .. .. .. ... 227
Adding .. .. ............. .... .. ... 229
Addit ives . .. ............. .... .. .. . 229
Changing .. .. ... .. ... ... .. .. .. ... 230
Checking the eng ine o il level .. .. ... .. 229
I ndications and cond it ions requ iring ex-
tra check ing ............. .... .. ... 229
I ndicator ligh t . . . . . . . . . . . . . . . . . . . . . 18
O il cons umption .......... .. .. .. .. . 228
P ressu re mal func tion ... ... .. .. .. .. .. 17
Recommended oil check intervals . ... . 229
Sensor defect ive . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity .. .. .. .. .. . 227
E ng ine sound ............. .... .. .. . 10 2
Eng ine speed limitat io n ........ .. .... . 21
Engine start -stop mode
refer to Start-Stop-System . .. .. .. .. .. 83
E ng ine star t sys tem (indicator l igh ts) .. .. 18
Env ironment
Break- in period ........ ...... .... .. 203
Cata lytic converter ........... .... .. 204
D iese l par ticul ate fi lter .... .. .. .. .. . 205
Di sposing of yo ur vehicle ba ttery .. .. . 238
D riving a t high speeds .. ... .. .. .... . 206
D riving to minimize pollution and noise 205
Fu el . .... .. .. ... .. ..... ... .. .. ... 219
F ue l economy ............ .... .. ... 205
Leaks under your veh icle ... .. .. .. .. . 225
Lett ing the veh icle stand and warm up . 206
Proper disposal of dra ined brake flu id . 234
Inde x 303
Proper disposal of d rained eng ine cool -
ant . ... .. .. .. .... . ... ...... ... .. 232
Proper disposal of d rained eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 229, 230
Recycling used engine oil ............ 229
Un leaded fuel .. ... ................ 217
What should I do with an o ld battery? . 238
Event Data Recorder (EDR) . . . . . . . . . . . . 194
E xhaust tail pipes
Cleaning .. .. .. .. .. . .............. 213
Expansion tank .. ... ...... .......... 231
Exterior lighting ..... . .. .. ..... ... .. . 44
E xte rior m irrors
Adjus ting . .. .. .. .... ........... .. . 50
Di mming . ... .. .. .. .. .. ...... ... .. . 51
Heating ... .. .... ... .. .. ..... ... .. . 50
Exterior temperature display ........... 24
F
Fastening
Boos ter seats .. .. .. . .. .... .... .. .. 182
Co nvertib le child safety seats ........ 180
Infan t seats . . . . . . . . . . . . . . . . . . . . . . 179
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 133
Foot peda ls ... .. .... . ... ...... ... .. 133
Fo r the sake of the environment
Gasoline fumes and t he env ironme nt .. 219
Red ucing engine noise by early upshift -
i ng ....... .. .. .. ... ............ ... 11
Ref ueling ... .... ... .. .. ..... ... .. 219
Saving f uel by early upshifting ... .. .. . 11
Fo ur- zone automatic climate control . .. . 72
Front airbags Descrip tion . . . . . . . . . . . . . . . . . . . . . . . 151
How they work . ......... ......... . 157
Frontal coll isions and the laws of physics 139
Fron t seats . . . . . . . . . . . . . . . . . . . . . . . . . 53
Adjus ting . .. .. .. .. ............... 13 0
Child rest rain ts in the front seat . ... .. 149
Fuel Additives .. .. .. .... .......... ..... 217
B lended gaso line . ............. .... 217
C u rrent cons umption .. ......... .... . 25
E conomy messages (eff icien cy program) 26
F uel fi ller flap emergency release ... .. 221
F uel fi ller neck ..... . .. .. ..... ... .. 219
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12
•
•

304 Index
Gasoline ........ ......... ... .... . 21 7
Gasoline additives ................. 218
Low fuel level symbo l . . . . . . . . . . . . . . . 22
Octane rating ............ .. .. ..... 217
Recommendation ......... .... .... . 217
Refuelling .. ................ ... ... 219
Reserve .. .. ... .... ...... .. .. .. .. .. 12
Tank capacity . . . . . . . . . . . . . . . . . 12, 292
Fuses Assignment ................. .... . 281
Replacing .. ..... ........... ... .. . 281
G
Garage door opener (Homelink) .. .. .. . . 42
Garment hooks ............ .... .. .. .. 61
Gas discharge lamps ............ .. .. . 284
Gauges Engine coolant temperature .... .. .... 11
Fuel gauge ... ........... .... .... .. 12
Speedometer ... .... ..... .... .. .. .. 27
Tachometer ................ ... ... . 12
Trip odometer .. ...... .... ... .. .. .. 27
General illustration ............ .... ... 8
Generator (warning/ indicator lights) .... 17
Glossary of tire and loading terminology 242
Glove compartment (cooled) ........... 61
Glow plug system Indicator light . . . . . . . . . . . . . . . . . . . . . 21
Gross Vehicle Weight Rating (GVWR) .. . 291
H
Head -up Display . . . . . . . . . . . . . . . . . . . . . 28
H eadlights
Cleaning ... ................ ..... . 213
C leaning system .................... 48
Defective . ................. ..... .. 22
Headlight range control . . . . . . . . . 22, 44
Washer reservoir ......... .. .. .... . 238
H ead restraints . . . . . . . . . . . . . . . . . 56, 132
Adjusting .. ................ ..... . 132
Fr ont seats . . . . . . . . . . . . . . . . . . . . . . . . 56
Rear seats .... ........... .... .... .. 57
Removing ............... .. .. .. .. .. 57
H eated
exterior mirrors . . . . . . . . . . . . . . . . . . . . SO
rear window (automatic climate contro l) 73 rear window (climate cont
ro l) . . . . . . . . . 71
seats (automatic climate control) ...... 73
seats (climate contro l) . . . . . . . . . . . . . . . 71
Steering wheel ... ............. ..... 74
windshield washer spray nozzles . .... . 48
Heating ... ..... .. .. .............. .. 69
Heavy clothing and safety belts ........ 141
High beam .. ...... ............. ..... 46
High voltage warning label ..... .. .. .. 291
Hill descent control ................. 112
Homelink (garage door opener) ..... .. . 42
Hood (release lever) .. ........... .. .. 225
Hooks . .. .. .. .. .. ............... .. . 67
Horn ..... ..... .. ................ ... 8
How are child restraint system anchors re-
lated to chi ld safety .......... ...... . 187
How many airbags does my vehicle have? 155
How often should I check my tire pres-
sures? ......... .. .. .............. . 253
How safety belt pretensioners work .. .. 145
Hydroplaning ...................... 260
I
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 27
Important things to do before driving .. 128
Improperly worn safety belts ...... .. .. 144
Ind icator lights
Dynamic steering ................. . 200
also refer to Warning/indicator lights .. 12
Infant seats .. .. .. ... .......... .... 179
Installing child safety seats Safety belts . . . . . . . . . . . . . . . . . . . . . . 184
Installing the upper tether strap on the
anchorage . . . . . . . . . . . . . . . . . . . . . . . . . 190
Instruments Adjusting the light ing .......... .... . 47
Instruments and controls General illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster ................ .. 11
Interior lighting
Ambience lighting ............. .. .. . 47
Front and rear ... ....... ...... .. .. . 47
Intermittent (windshield wipers) ... ... . 48