gas type AUDI S4 2015 Owners Manual

160 Airbag system
can only help to protect you if you a re wearing
your safety belt and wearing it properly. This
i s another reason why you should always wear
your safety belts, not just because the law re­
quires you to do so
r:::> page 136, General
notes .
It is important to remember that whi le the
supp lemental side a irbag system is designed
to reduce the likelihood of serious injuries,
other injuries, for example, swell ing, bruising,
and minor abras ions can also be associated
with deployed side a irbags . Remember too,
side ai rbags wi ll deploy on ly once and on ly in
cer tain k inds of accident s -yo ur safety belts
are a lways there to offer protect io n.
Vehicle damage, repa ir costs or even the lack
of veh icle damage are not necessar ily an indi­
cation of over-sensi tive or failed airbag activa­
tion . In some co llisions, both fron t and side
airbags may inflate. Remember too, that air­
bags will dep loy only once and only in certain
kinds of collisions -your safety belts are al­
ways there to offer protection in those acci­
dents in which airbags are not supposed to
deploy or when they have already deployed .
The side airb ag syst em will not depl oy :
- when the ignition is turned off
- in side collisions when the acce leration
measured by the sensor is too low
- in front-end col lisions
- i n rear-end co llisions
- i n ro llovers .
In some types of accidents the front airbags,
side curtain airbags and side airbags may be
tr iggered together .
A WARNING
-Saf ety belts and the a irbag system w ill
only p rov ide protection when oc cupan ts
are in the p roper seating posit ion
c:!;>page 161.
-If the airbag indicator light c:!;> page 20
comes whe n the vehicle is be ing used,
have the system inspected immediate ly
by your authorized Audi dea ler . It is pos-
-
sible that the airbag will inflate when it
is not supposed to, or will not inflate
when it should.
How supplemental side airbags work
Side airbags deploy instantly and can help re­
duce the risk of upper torso injuries for occu­
pants who are properly restrained.
F ig. 158 In flated sid e airbags on left s ide of vehicle
When the system is trigge red, the a irbag is
filled wi th propellant gas and b reaks through
a seam in the seat su rface area marked "AIR ­
BAG".
It expands between the side trim panel
and the passenger. In order to help provide
t hi s addit ional protection, the side airbag
must inflate within a fraction of a second at
very h igh speed and with great force. The sup­
pleme ntal side airbag could injure you if your
seat ing position is not proper or upright or if
items are located in the area where the sup­
plementa l side airbag expands . This applies
especially to ch ildren
c:!;> page 165, Child Safe­
ty.
Supplemen tal side ai rbags inflate be tween
the oc cupant and the door panel on the side
of the vehicle that is struck in certain side col ­
li sion ¢
fig. 158.
Although they are not a soft p illow, they can
"cushion" the impact and in this way they can
help to reduce the risk of injury to the upper
part of the body .
A fine d ust may deve lop when the a irbag de­
ploys . This is normal and does not mean there
is a fire in the vehicle.

"" N
0 ::.,: co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
@ Tips
It may take longer to start the engine
when the outside temperature is very cold.
If possible, use winterized fuel if tempera­
tures are below freezing.
Gasoline additives
A major concern among many auto manufac­
turers 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 gasoline grades contain
substances that can cause deposits to collect
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 are not equally effec­
tive.
Aud i recommends using TOP TIER Detergent
Gasoline. For more information on TOP TIE R
Detergent Gasoline, please go to the officia l
website (www.toptiergas .com) .
Afte r an extended pe riod of using inadequate
fuels, built-up carbon deposits can rob your
engine of peak performance.
CD Note
- Damage or malfunction due to poor fuel
quality is not covered by the Audi New
Vehicle Limited Warranty.
- Do not add aftermarket fuel additive
products to your fuel tank.
Fuel tank
Fuel filler neck
The fuel filler neck is located on the r ight rear
side panel behind the fuel filler flap.
If the power locking system should fail, you
can sti ll open the flap manually - for detailed
instructions see
c:> page 211.
You can find the fue l tank capacity of your ve ­
hicle in
c:> page281.
Fuel supply and filling your fuel tank 209
The label on the inside of the fuel fi lier f lap
te lls you the correct fue l for your vehicle. For
more information about fuel specifications,
see
c:> page 207.
Your vehicle fue l tank has an on -board refue l­
ling vapor recovery system. This feature helps
to prevent fuel vapors from escaping from the
tank and polluting the environment while you
refuel your vehicle. In order to fill the tank
proper ly while protecting the environment,
please follow this refueling procedure careful­
ly.
_&. WARNING
Under normal operating conditions, never
carry additional fuel containers in your car.
Gas canisters and other containers used to
transport fuel can be dangerous. Such con­
tainers, fu ll or empty, may leak and could
cause a fire in a collision. If you must
transport fuel to use for your lawn mower,
snow blower, etc., be very careful and al­
ways observe local and state laws regard­
ing the use, transportation and storage of
such fuel containers. Make certain the con­
tainer meets industry standards (ANSI/
ASTM F852 - 86).
CD Note
Never drive your veh icle until the fuel tank
i s completely empty. The irregu la r supply
of fue l can cause misfiring. Gasoline cou ld
enter the exhaust system and damage the
catalytic converter.
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Tires and wheels
Tires
General notes
Tires may be the least appreci­
ated and most abused parts of
a motor vehicle .
Tires may be the least appreci­
ated and most abused parts of
a motor vehicle. Tires are, how­
ever, one of the most important
parts of a vehicle, particularly
considering the comparatively
small patch of rubber on each
tire that assures that all-impor­
tant contact between you, your
vehicle and the road.
Maintaining the correct tire
pressure, making sure that your
vehicle and its tires do not have
to carry more weight than they can safely handle, avoiding
damage from road hazards and
regularly inspecting tires for
damage including cuts, slashes
irregular wear and overall con­
dition are the most important
things that you can do to help avoid sudden tire failure includ­
ing tread separation and blow-
~ outs.
0 ::.,: co ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
Tires and wheels 22 7
Avoiding damage
If you have to drive over a curb
or similar obstacle , drive very
slowly and as close as possible
at a right angle to the curb.
Always keep chemicals includ­ ing grease, oil, gasoline and
brake fluid off the tires.
Inspect the t ires regularly for
damage (cuts, cracks or blis­
ters, etc.). Remove any foreign bodies embedded in the treads.
Storing tires
Mark tires when you remove
them to indicate the direction
of rotation. This ensures you to be able to mount them correct­
ly when you reinstall them.
When removed, the wheels or
tires should be stored in a cool, dry and preferably dark place.
Store tires in a vertical position if they are not mounted on
rims, in a horizontal position if
they are mounted on rims.
New tires
New tires have to be broken in
¢ _&..
The tread depth of new tires
may vary , according to the type .,.
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•
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Incorrect wheel alignment
Incorrect wheel alignment can
cause excessive tire wear, im­
pairing the safety of the vehi­
cle. If tires show excessive
wear, have the wheel alignment checked by an authorized Audi
dealer or qualified workshop.
All wheel drive
Vehicles with quattro must al­
ways have tires of the same size, construction and tread
type. For details see
¢ page 190 .
A WARNING
Sudden tire failure can lead
to loss of control, a crash and
serious personal injury!
-Never drive a vehicle when the tread on any tire is worn
down to the wear indica­
tors.
-Worn tires are a safety haz­ ard, they do not grip well on
wet roads and increase your risk of "hydroplaning" and
loss of control.
- Always keep chemicals that
can cause tire damage, such
as grease, oil, gasoline and brake fluid away from tires.
-
Tires and wheels 24 7
-Tires age even if they are not being used and can fail
suddenly, especially at high
speeds. Tires that are more
than 6 years old can only be
used in an emergency and
then with special care and at lower speeds.
-Never mount used tires on your vehicle if you are not
sure of their "previous histo­ ry ." Old used tires may have
been damaged even though
the damage cannot be seen
that can lead to sudden tire
failure and loss of vehicle
control.
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