fuel additives AUDI A3 2011 Owner´s Manual

Fuel supply and filling your fuel tank
Blend of gasoline and MTBE
• Anti-knock index must be 87 AKI or higher.
• Blend must contain not more than 15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform especially well fo r
winter or summer driving. During 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.
0 Note
• Methano l fuels which do not meet these requirements may cause
corrosion and damage to plastic and rubber components in the fue l
system .
• Do not use fuels that fail to meet the specified criteria in this
chapter .
• If you are unab le to determine whether or not a particu lar fuel
blend meets the spec ifications, ask your serv ice station or its fuel
supplier.
• 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 responsi­
bility of Aud i and are not covered under the New Vehicle or the Em is­
sion Control System Warranties.
• If you experience a loss of fuel economy or driveab ility and perfor­
mance 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 manufacturers is carbon deposit
build-up caused by the type of gasoline you use. Although gasoline grades differ from one manufacturer to another,
they have certain things
in common. All gaso line g rades contain
substances that can cause deposits to collect on v ital engine parts,
such as fuel injectors and intake valves. A lthough most gasoline
brands include additives to keep eng ine and fuel systems clean, they
are not equally effective.
Audi recommends using TOP TIER Detergent Gasoline. For more
information on TOP TIER Detergent Gasoline, please go to the officia l
webs ite (www.toptiergas.com).
After an extended period of using inadequate fuels, built-up carbon
deposits can rob your engine of peak performance.
0 Note
Damage or malfunction due to poor fuel quality is not covered by the
Audi New Vehicle Limited Warranty. •
Applies to veh icles: wit h diese l eng ine
Diesel fuel
Always use ULSD (Ultra Low Sulfur Diesel) sulfur content
15 ppm or less.
Th e ULSD (Ultra Low Sulfur Diesel) meets the ASTM-D -975 (grade 2).
Diesel fuel with a higher concentration than ULSD-Diesel No. 2
ASTM D975 and Bio-diesel with a higher concentration than S
%
like Bll, B20 or BlOO are strictly prohibited.
Service station fuel pumps are labeled with the correct fuel informa­
tion for easy recognition by the user. If the diesel fuel pump is not
labeled ask the station operator what fuel is being dispensed before
filling up your vehicle.
Service stations offering diesel fuel are generally located on truck
routes or major highways . D irectories of diesel fuel stat ions are
usually available at diesel fuel stations.

___ C_ h_ e_c _k _i _ n _g ~ a_n _d_ f_il _l_in _ g _________________________________________ _
Under some circumstances the engine oil should even be changed
more frequently. Change oil more often if you drive mostly short
distances, operate the vehicle in dusty areas or mostly under stop ­
and-go traff ic conditions, or when you use your vehicle where temper­
atures stay below freezing point for long periods .
Detergent additives in the oil will make fresh oil look dark after the
engine has been run ning for a short time . This is normal and is not a
reason to change the oil more often than recommended .
Damage or malfunctions due to lack of maintenance
It is essentia l that you change your oi l at the recommended intervals
using only engine oil that complies with Audi oi l standard VW 502 00
(vehicles with gasoline engine) or VW 507 00 (vehicles with diesel
engine). Your Limited New Vehicle Warranty does not cover damage
or malfunctions due to failure to follow recommended maintenance
and use requirements as set forth in the Audi Owner's Manua l and
Warranty
& Maintenance booklet. Your dealer will have to deny
warranty coverage unless you present to the dealer proof in the form
of Service or Repair Orders that all scheduled maintenance was
performed in a timely manner .•
Engine oil consumption
The engine in your vehicle depends on an adequate
amount of oil to lubricate and cool all of its moving parts.
In order to provide effective lubrication and cooling of internal
engine components, all internal combustion engines consume a
certain amount of o il. Oil consumpt ion varies from engine to engine
and may change significant ly over the life of the eng ine. Typically,
engines with a specified break- in period (see~
page 197) consume
more oi l during the break-in period than they cons ume after oil
consumption has stabilized.
Under normal cond itions, the rate of oil consumpt ion depends on the
quality and vis cosity of the oil, the RPM (revol utions pe r minute) at
which the engine is operated, the ambient temperature and road
conditions. Further factors are the amount of oi l dilution from water condensation or fuel residue and the ox
idation level of the o il. As any
eng ine is subject to wear as mileage builds up, the oil consumption
may increase over time until replacement of worn components may
become necessary.
With all these variab les coming into play, no standard rate of oil
consumption can be established or specified. There is no alternative
to regular and frequent checking of the oil level , see
Note .
If the yellow engine oil level warning symbol in the instrument
cl uster .... lights up, you should check the oil level as soon as possible
with the oil dipstick~ page 231. Top off the o il at your earliest
convenience ~
page 232.
& WARNING
Before you check anything in the engine compartment, always
read and heed all WARNINGS~
& in "Work ing in the engine
compartment" on
page 226.
0 Note
Driving with an insufficient oil level is likely to cause severe damage
to the engine .
[ i ] Tips
• The oil pressure warning display 't::r. is not an indicator of the oil
level. Do not rely on it. Instead, check the oil level in your engine at
regular intervals, preferably each time you refuel, and alway s
before going on a long trip.
• If you have the impression your eng ine consumes excessive
amounts of oi l, we recommend that you consu lt your authorized Audi
dea ler to have the cause of your concern properly diagnosed. Keep in
mind that the accurate measurement of oil consumption requires
great care and may take some time . Your authorized Audi dea le r has
instructions about how to measure oil consumption accurately. •

___________________________________________ A_ l:.. p _h _a_ b_ e_t _ic _a_ l_ in_ d _ e_x __ _
Fastening
Booster seats ............... ... .. 17
5
Convert ible child safety seats .. ..... 173
Infant seats ..................... 172
Fastening eyes . ................. .. .. 82
Flat tire Changing . .. ........... .. .... .. . 272
Floor mats ........... .... .......... 130
Fog lights, front ........... .... .. .. .. 58
Folding master key with remote control .. 38
Foot pedals .. .. ... ........ .. .... .. . 130
For the sake of the environment
Gasoline fumes and the environment 222
Letting your engine warm up ....... 107
Reducing engine noise by upshifting ear ly
8,9
Refueling . .. .. .. .. .. .. .. ........ 222
Saving fuel by upshifting early .. ... . 8, 9
Using the rear window defogger . ... . 102
Front airbags Description . ...... .. .. .. .. .. .... . 149
How they work .......... .. .. .. .. . 154
Front seats .. .. .. ................... 73
Adjusting . .. ... ........ ...... .. . 127
Adjusting the manual seats ......... 74
Child restraints in the front seat .... 147
Heated seats .................... 103
Fro ntal collisions and the laws of physics 136
Fuel Current fuel mileage .... .... ....... 21
Fu el gauge ........ ... .. ...... .. .. 10
Fuel supply too low . ... .. .. .... .... 34
Controls and equip­
ment Safety first
Fuel
economy messages (efficiency program)
26
Fuel filler flap Unlocking the fuel filler flap by hand . 224
Fuel gauge .... .. ................. ... 10
Fuel range ............. .... .. .. .. .. . 21
Fuel supply
Additives .. ............... ...... 219
Blended gasoline .... .. .. .. ... .... 219
Fuel filler neck .. ........... .. .. .. 221
Fuel gauge . .... .... .. .. ... ....... 10
Fuel tank capacity ......... ... 10,221
Gasoline ...................... .. 219
Gasoline additives ................ 220
Octane rating ...... .............. 219
Recommendation ................ 219
Refuelling ... .. .... .. .. .... .. ...
222
Unlocking the fuel filler flap by hand . 224
Fuel tank
Capac ity ........................ 221
Capacity (gallons/liters) ........ ... . 10
Fuse arrangement ................ ... 282
Fuses Replacing ....................... 281
G
Gas discharge lamps ...... ........... 285
Gauges Eng ine coolant tern perature .......... 9
Fuel gauge .. ..... .. .............. 10
Speedometer ............ .. ... .... 10 Tachomete
r ... ... .... ........ ..... 8
Trip odometer .................... 10
Gear recommendation ................ 19
Gearshift indicator ................... 19
Gearshift lever .................... . 114
General illust ration
Instruments and controls ............
7
Generator
Warning/indicator lights ... .. ...... 15
Glossary of tire and loading terminology 246
Glove compartment . .. .. .. ...... ..... 92
Light . . . . . . . . . . . . . . . . . . . . . . . . 60, 61
Glow plug system Indicator light .................... 13
Warning light ...... ..... ... . ... .. 13
Gross Vehicle Weight Rating (GVWR) ... 295
H
Head restraints .......... .... .. .. .. . 128
Adjusting ................. ...... 128
Rear seats .. .. ................... 78
Headlight defective ... ...... ............... 36
Headlight range control defect ive . .. ...... ............... 35
Headlights ................. ... ...... 56
Front fog lights ................... 58
Switching off ... ..... .... ... .. .. .. 56
Switching on ................... .. 56
Xenon headlights . .. .... .... .. ..... 56
Heated rear window ..................... 102
Vehicle operation Vehicle care Do-it-yourself service Technical data