Fuel and R efue lin g
Gasoline additives
A major concern among many auto manufactur
ers is carbon deposit build- up ca used by the type
of gasoline you use.
Although gasoline grades differ from one manu
facturer to another, they have certa in things in
common. All gaso line grades contain substances
that can cause deposits to collect on v ita l engine
parts, such as fue l 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 T IER Detergent Gas
oline. For more information on TOP TIER Deter
gent Gasoline, please go to the officia l website
(www.toptiergas.com).
After an extended period of using inadequate
fue ls, built-up carbon deposits can rob your en
g ine of peak performance .
CD Note
-Damage or ma lf u nction due to poor fuel
quality is not covered by the Aud i New Vehi
cle Limited Warranty .
- Do not add aftermarket f uel addit ive prod
ucts to your fuel tank.
Refueling
Fuel filler neck
The fuel f iller neck is located on the r ight rear
side panel behind the fuel f iller flap .
If the power Locking system should fail, you can
still open the flap manually -for deta iled instruc
tions seer:>
page 194.
You can find the fue l tank capacity of your vehicle
in r:>
page 246 .
The label on the inside of the fuel filler flap tells
you the correct fuel for your vehicle. For more in
formation about fue l specifications, see
c:> page 190 .
Your vehicle fuel tank has an on -board refuelling
vapor recovery system . This feature helps to pre
vent fuel vapors from escaping from the tank and
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po lluting the environment while you refuel your
vehicle. In order to fi ll the tank properly while
protecting the environment, please follow this
refueling procedure carefu lly.
A WARNING
Under normal operating conditions, never car
ry additional fuel containers in your car. Gas
can isters and other containers used to trans
port fuel can be dangerous. Such containers,
fu ll or empty, may leak and could ca use a fire
in a co llision.
If you must tra nsport f uel to
use for your lawn mower, snow blower, etc.,
be very careful and always observe local and
state laws regarding the use, transportation
and storage of such fue l containers . Make cer
tain the container meets industry standards (ANSI/ASTM F852 -86).
CD Note
Never drive your vehicle until the fue l tank is
complete ly empty. The irregular supply of
f u el can cause misfiring. Gasoline could enter
the exhaust system and damage the catalytic
converter.
Refuelling
Fig. 166 R ig ht rea r ve hicle side : Open ing t he fue l filler flap
Fig. 167 Fuel fi ller flap w ith attac hed fue l cap
M N
ci u.. co ,...., \!) 1.1'1
N 1.1'1 ,....,
~ Open the engine hood ¢page 195 .
~ Open the cover on the positive pole ~ fig. 177.
~ Connect the charger connectors accord ing to
the instructions to the
j ump sta rt bolts . (Bolts
under the cover= "positive", Bo lts with hex
head = "negat ive") .
~ Only now plug the mains lead for the charg ing
equipment into the wall outlet and turn it on
~ & -
~ Ma ke s ure th e char gin g rate is not ov er
3 0 amp s/14 .8 Volt .
~ When the battery is fully charged: Turn the
charging equipment
off and remove the mains
l ead from the wall outlet.
~ Now remove the clamps for the charging equip-
ment.
~ Close the cover on the positive pole .
~ Close the hood 9 page 195.
A discharged battery can freeze at temperatures
of only 32 °F (0 °C). Allow a frozen battery to
thaw completely before attempting to charge it
9 & . However, we recommend not using a
thawed battery again because the batte ry casing
can be cracked due to ice formation and can leak
battery ac id.
Battery charg ing (Ma ximum charging rate of
30 amps /14.8 Volt )
When charging at low voltages (e.g. w ith a tri ckl e
c h arge r),
the battery cables do not have to be
disconnected first. The battery caps shou ld
not
be opened when charging a battery.
It is not necessary to remove the batte ry from
the luggage compartment.
F a st charging th e battery (charg ing r ate
above 14.8 Vo lts )
For technical reasons do no t use a battery charg
e r that uses voltage greater than 14.8 Volts to
charge your vehicle's battery .
A WARNING
Charging a battery can be dangerous.
- Always follow the operating instructions
provided by the battery charger manufactur
er when charging your battery.
Checking and Fillin g
-Never charge a frozen battery. It may ex
plode because of gas trapped in the ice. Al
low a frozen battery to thaw out first.
- Do not reuse batteries wh ich were frozen.
The battery housing may have cracked and
weakened when the battery froze.
- Charge the battery in a well ventilated area. Keep away from open flame or electrical
spark. Do not smoke. Hydrogen gas generat
ed by the batte ry is explosive.
- To reduce the danger of explosion, never
connect or d isconnect charger cables wh ile
the charger is operating.
- Fast charging a battery is dangerous and
should only be attempted by a competent
technician w ith the proper equipment.
- Battery acid that may sp ill dur ing charging
should be washed
off with a solut ion of
warm water and baking soda to neutralize the acid .
@ Note
Never use a fast charger as a booster to start
the engine . This w ill ser iously damage sensi
tive electronic components, suc h as control
units, relays, radio, etc., as we ll as the battery
charger.
Battery replacement
The new battery must have the same specifica
tions and dimensions as the original equipment
battery.
Intelligent energy management in your vehicle is
responsible for distributing the elect rical energy
throughout your vehicle
9 page 175. T he intelli
gent energy management system w ill keep the
engine battery charged better then vehicles with
out this system. To make sure the additional elec
trical energy is avai lab le once again after you
have changed the battery, we recommend that
you install batteries of the same type and manu
facture only (the same as those installed at the
t ime your vehicle was delivered) . Specifications
are listed on the battery housing . Your autho r
ized Audi dealer must code the battery in the en-
ergy management system to enab le you to use .,,.
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