pressure AUDI A3 SEDAN 2017 User Guide

CXl CXl .... N ,.__
N .... 0 N > 00
Driving safety
Basics
Safe driving habits
Please remember -safety first!
This chapter contains important information,
tips, instructions and warnings that you need to
read and observe for your own safety, the safety
of your passengers and others . We have summar­
ized here what you need to know about safety
belts, airbags, child restraints as well as child
safety. Your safety is for us
priority number 1. Al­
ways observe the information and warnings in
this section - for your own safety as well as that
of your passengers.
The information in this section applies to all
model versions of your vehicle. Some of the fea­
tures descr ibed in this sections may be standard
equipment on some models, or may be optional
equipment on others. If you are not sure, ask
your authorized Audi dealer.
A WARNING
- Always make sure that you follow the in­
structions and heed the WARNINGS in this
Manual. It is in your interest and in the in­
terest of your passengers .
-
-Always keep the complete Owner's Litera­
ture in your Audi when you lend or sell your
vehicle so that this important information
will always be available to the driver and
passengers.
- Always keep the Owner's literature handy so
that you can find it easily if you have ques­
tions.
Safety equipment
The safety features are part of the occupant re­
straint system and work together to help reduce the risk of injury in a wide variety of accident sit­
uations.
Your safety and the safety of your passengers
should not be left to chance. Advances in tech­
nology have made a var iety of features available
to help reduce the risk of injury in an accident.
Driving safety
The following is a list of just a few of the safety
features in your Audi:
- sophisticated safety belts for driver and all pas­
senger seat ing pos itions,
- safety belt pretensioners,
- safety belt height adjustment systems for the
front seats*,
- front airbags,
- knee airbags for the front seats*
- side airbags in the front seats and outer rear seats*,
- side curtain airbags with ejection mitigation features*,
- special LATCH anchorages for child restraints,
- head restraints for each seating position,
- adjustable steering column.
- pre sense* (preventat ive passenger protection)
These individual safety features, can work to­ gether as a system to help protect you and your
passengers in a wide range of accidents . These
features cannot work as a system if they are not
always correctly adjusted and correctly used.
Safety is everybody's responsibility!
Important things to do before driving
Safety is everybody 's job! Vehicle and occupant
safety always depends on the informed and care­
ful driver .
For your safety and the safety of your passen­
gers,
before driving always:
.,. Make sure that all lights and signals are operat­
ing correctly .
.,. Make sure that the tire pressure is correct.
.,. Make sure that all windows are clean and afford
good visibility to the outside .
.,. Secure all luggage and other items carefully
¢ page 66, ¢ page 65.
.,. Make sure that nothing can interfere with the
pedals.
.,. Adjust front seat, head restraint and mirrors correctly for your height .
.,. Instruct passengers to adjust the head re­
straints according to their height .
247

Driving safety
-Close the power top*,
- Open all air outlets in the instrument pan-
el,
- Switch off the air recirculation,
- Set the fresh air fan to the highest speed.
.&, WARNING
-
Always make sure that the doors, all win­
dows, the power roof*, the power top* and
the rear lid are securely closed and locked to
reduce the risk of injury when the vehicle is
not being used.
- After closing the rear lid, always make sure
that it is properly closed and locked.
- Never leave your vehicle unattended espe­ cially with the rear lid left open. A child
could crawl into the vehicle through the lug­
gage compartment and close the rear lid be­
coming trapped and unable to get out. Be­
ing trapped in a vehicle can lead to serious
personal injury.
- Never let children play in or around the vehi­
cle.
- Never let passengers ride in the luggage
compartment. Vehicle occupants must al­
ways be properly restrained in one of the ve­
hicle's seating positions.
(D Tips
- Air circulation helps to reduce window fog­
ging . Stale air escapes to the outside
through vents in the trim panel. Be sure to
keep these slots free and open.
- The tire pressure must correspond to the load. The tire pressure is shown on the tire
pressure label. The tire pressure label is lo­
cated on the driver's side B-pillar. The tire
pressure label lists the recommended cold
tire inflation pressures for the vehicle at its
maximum capacity weight and the tires that
were on your vehicle at the time it was man­ ufactured. For recommended tire pressures
for normal load conditions, please see chap­ ter
c:> page 336.
254
· Tie-downs
The luggage compartment is equipped with four
tie-downs to secure luggage and other items .
Use the tie-downs to secure your cargo properly
c:> page 253, Loading the luggage compartment .
In a collision, the laws of physics mean that even
smaller items that are loose in the vehicle will
become heavy missiles that can cause serious in­
jury . Items in the vehicle possess energy which
vary with vehicle speed and the weight of the
item . Vehicle speed is the most significant factor .
For example, in a frontal collision at a speed of
30 mph (48 km/h), the forces acting on a 10-lb
(4 .5 kg) object are about 20 times the normal
weight of the item. This means that the weight
of the item would sudden ly be about
200 lbs. (90 kg). You can imagine the injuries
that a 200 lbs. (90 kg) item flying freely through
the passenger compartment could cause in a col­
lision like this.
.&, WARNING
Weak, damaged or improper straps used to
secure items to tie-downs can fail during hard
braking or in a collision and cause serious per­
sonal injury.
- Always use suitable mounting straps and
properly secure items to the tie-downs in
the luggage compartment to help prevent
items from shifting or flying forward as dan­
gerous missiles.
- When the rear seat backrest is folded down, always use suitable mounting straps and properly secure items to the tie-downs in
the luggage compartment to help prevent
items from flying forward as dangerous
missiles into the passenger compartment.
- Never attach a child safety seat tether strap
to a tie-down.
-

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Safety belt position
Correct belt position is the key to getting maxi­
mum protection from safety belts .
~
"' l'-9 r .. a,
Fig. 236 Safety bel t pos it io n
Standard feat ures on your vehicle he lp you ad just
the posit ion of the safety belt to match your body
size .
- belt he igth adj ustmen t for the front seats *,
- height-adjustable front seats.
.&, WARNING
Improperly pos it ioned safety be lts ca n ca use
ser ious personal inj ury in an accident .
- T he shoulder belt sho uld lie as close to the
cen ter of the colla r bone as possible and
should fit we ll on the body. Hold t he belt
above the latch tong ue a nd pu ll it evenly
across the chest so that it sits as low as pos­
sible on the pelvis and there is no press ure
on the abdomen . The belt should always fit
snugly
Q fig. 236. Pull on the belt to tighten
if necessary.
- The lap belt portion of the safety belt must
be pos itioned as low as possib le across pel ­
vis and never over the abdomen. Make sure
the belt lies flat and snug
Q fig . 236 . Pull on
th e belt to tighten if necessary.
- A loose-fitt ing safety belt can cause ser ious
injuries by shift ing its pos ition on you r body
from the st rong bones to more vu lne rable,
soft tiss ue a nd cause ser ious injury.
- Always read and heed all WARN INGS and
other importa nt inform ation
<=? page 261.
Safet y bel ts
Pregnant women must also be correctly
restrained
The best way to protect the fetus is to make sure
that expectant mothers always wear safety bel ts
correctly
-throughout the pregnancy.
F ig. 237 S af ety belt position duri ng pregnancy
To provide maximum protection, safety belts
must always be positioned correctly on the wear­
er's
body ¢ page 263 .
.. Adjust the front seat and adjustable head re­
straint*
c orrec tly¢ page 61, Front sea ts .
.,. Pull the safety belt evenly across the chest so
that it sits as low as possible on the pelvis and
there is no pressure on the abdomen
Q fig. 237 , ¢ .&,.
.,. Insert the tongue into the co rrect buc kle of
your sea t until yo u hear i t latch secu rely.
.,. Pull on the belt to make sure that it is sec urely
latched in the buckle.
_& WARNING
Improperly positioned safety belts can cause
serious pe rsonal injury in an acc ident.
-Expectant mothers must always wear the
lap portion of the safety belt as low as pos ­
sible across the pe lvis and below the round­
ing of the abdomen.
- Always read and heed all WARNINGS and
other important
i nformation¢ .&. in Fasten­
ing safety belts on page 262 .
263

Airbag syste m
-Damage to the origina l seat covers or to
the seam in the area of the side airbag module must always be repaired immedi­
ately by an authorized Audi dealer .
- Objects between you and the airbag can in­
crease the risk of injury in an accident by in­
terfering with the way the airbag unfolds or by being pushed into you as the a irbag in­
flates.
- Never place or attach accessories or other
objects (such as cup holders, telephone
brackets, or even large, bulky objects) on
the doors, over or near the area marked
"AIRBAG" on the seat backrests .
- Such objects and accessories can become
dangerous projectiles and cause injury
when the supplemental s ide airbag de­
ploys.
- Never carry any objects or pets in the de­
ployment space between them and the
a irbags or allow chi ldren o r othe r passen­
gers to travel in th is posit ion.
- Always use the built-in coat hooks only for
lightweight cloth ing . Never leave any heavy
or sharp-edged objects in the pockets that
may interfere w ith side airbag dep loyment
and can cause personal in jury in an accident .
- Always prevent the side airbags from being
damaged by heavy objects knoc king agains t
or hitting the sides of the seatbacks.
- T he airbag system can only be triggered
once . If the a irbag has been triggered, the
system must be replaced by an authorized
Audi dealership.
- Damage (cracks, deep scratches etc.) to the
original seat covers or to the seam in the
area of the side airbag modu le must always
be repaired immediately by an authorized
Audi dealer.
- If children are seated improper ly, their risk
of injury increases in the case of an acc ident
¢ page 2 92, Child safety.
- Never attempt to modify any components of
the a irbag system in any way.
- In a side collision, side airbags w ill not func­
t ion properly if sensors cannot correctly
measure increasing a ir pressure ins ide the
288
doors when air escapes through larger, un­
closed openings in the door panel.
- Never dr ive with inte rior door trim panels
r emoved.
- Never dr ive when parts have been re­
moved from the inside door pa nel and the
openings they leave have not been proper­
l y closed.
- Never dr ive when loudspeakers in the
doo rs have been removed unless the
speaker holes have been properly closed .
- Always make ce rtain that open ings are
cove red or filled if additional speakers or
othe r equipment is installed in the inside
door panels .
- Always have wor k on the doors done by an
authorized Aud i dea ler or q ualified work ­
shop .
Side curtain airbags
Description of side curtain airbags
Applies to: vehicles with side curtain airbags
The side curtain airbag system can provide sup­
plemental protection to properly restrained oc­
cupants .
Fig. 250 Sid e curt ain airb ags, driver's s ide : s ide curtain a ir­
bag loca tio n (exa mple)
The side curtain airbags are located on both sides
of the inter ior above the front and rear side win­
dows
¢ fig. 250 . They are identified by the word
"A IRBAG" on the windshie ld frame and the cen­
ter roof pillar.
The side curtain airbags contain features that
provide ejec tion mitigation to help prevent veh i-
cle occupants or parts of their bodies from be ing
completely or partially ejected from the vehicle
II>

Checking and Filling
When the engine is warm it can be slightly above the upper marking.
Adding coolant
Plug-in hybrid drive* : Your vehicle has two cool­
ant expansion tanks that are separate from each
other. The smaller of the two expansion tanks
must not be opened
¢ page 104. Read and fol­
low the important safety precautions ¢
A in
Coolant on page 105 .
Requirement: there must be a residual amount of
coolant in the expansion tank
¢ (D .
~ Let the engine cool down.
~ Place a cloth over the coolant expansion tank
cap and unscrew the cap counterclockwise
¢_&. .
~ Add coolant mixed in the correct ratio
¢page 323 up to the upper marking.
~ Make sure that the fluid level remains stable.
Add more coolant if necessary.
~ Close the cap securely.
Coolant loss usually indicates there is a leak . Im­
mediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected.
If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
.,&. WARNING
The cooling system is pressurized and can be­
come very hot. To reduce the risk of burns
from hot coolant:
- Do not open the coolant expansion tank cap
when the engine is hot. This increases the
risk of burns.
- Stop the engine and allow it to cool.
- Protect your face, hands and arms from es-
caping coolant and steam by covering the
coolant tank cap with a large, thick cloth.
- Turn the coolant tank cap counterclockwise
slowly and keep light pressure on the cap.
- To reduce the risk of burns, do not allow any
antifreeze or coolant to drip onto the ex­
haust system or hot engine components.
324
The ethylene glycol in engine coolant can
catch fire under certain circumstances.
- The coolant additive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children . There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
(D Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the engine . If this is the case, do not
continue driving . See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
- Before the start of winter, have an author­
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
- If the appropriate coolant additive is not
available in an emergency, do not add any
other additive. You could damage the en­
gine. If this happens, only use water and re­
store the correct mixture ratio with the
specified coolant additive as soon as possi­
ble .
- Only refill with new coolant.
- Radiator sealant must not be mixed with the coolant.
· Radiator fan
The radiator fan switches on automatically by it­
self
An auxiliary electric radiator fan switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch the engine off, the auxiliary fan
can continue running for up to 10 minutes
-even
with the ignition off.
It can even switch on again
later by
itself ¢.& , if .,..

Wheel s
® Mud and snow capability
"M/5" or "M+S" indicates the tire
is sui table for driving on mud and
snow.
& indicates a winter tire.
@ Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay­
ers in the t ire. In general: the
more layers, the more weight a
tire can carry . Tire manufacturers
must also specify the materials
used in the tire. These include
steel, nylon, po lyester and other
materials.
@ Maximum permitted load
This number indicates the maxi­
mum load in kilograms and
pounds that the tire can carry .
@Uniform tire quality grade
standards for treadwear,
traction and temperature resist ance
Treadwear, traction and tempera­
ture
ranges ¢ page 344.
@ Running direction
The arrows indicate the running
direction of unidirectional t ires .
You must always follow the speci­
fied running direction
¢page 361 .
330
@ Maximum permitted
inflation pressure
This number indicates the maxi­
mum pressure to which a tire can
be inflated under normal operat ­
ing condit ions.
Glossary of tire and loading
terminology
Acces sory we ight
means the combined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power steer­
ing, power brakes, power win­
dows, power seats, radio, and
heater, to the extent that these
items are available as factory-in­
stalled equipment (whether in ­
stalled or not) .
Aspect ratio
means the ratio of the height to
the width of the tire in percent .
Numbers of 55 or lower indicate a
low sidewall for improved steer­
ing response and better overall
handling on dry pavement.
Bead
means the part of the tire that is
made of steel wires, wrapped or
reinforced by ply cords and that is
shaped to fit the r im .
...

Bead separa tion
means a breakdown of the bond
between components in the bead.
Cord
means the strands forming the
plies in the tire .
Cold tire inflation pressure
means the tire pressure recom­
mended by the vehicle manufac­
turer for a tire of a designated size that has not been driven for
more than a couple of miles (kilo­
meters) at low speeds in the
three hour period before the tire
pressure is measured or adjusted .
Curb weight
means the weight of a motor ve­
hicle with standard equipment in­
c luding the maximum capac ity of
fuel, oi l, and coolant, a ir condi­
tioning and add itional weight of
optional equipment.
E xtra load tire
means a tire designed to operate
at higher loads and at h igher in ­
flation pressures than the corre­ sponding standard tire. Extra load
tires may be identified as
"X L",
:;:;: "xl", "E XTRA LOAD" , or "RF" on ...
~ the s idewal l. ... 0 N > a:,
Wheels
Gross Axle Weight Rating
( " GAWR")
means the load-carrying capacity
of a single axle system, measured
at the tire -ground interfaces.
Gross Vehicle Weight Rating
(" GVWR ")
means the max imum total loaded
weight of the vehicle.
Groove
means the space between two ad­
jacent tread ribs .
Load rating (code)
means the maxim um load that a
tire is rated to carry for a given in­
flat ion pressure . You may not f ind
this informat ion on all tires be ­
cause it is not required by law.
Maximum load rating
means the load rating for a tire at
the maximum permissible infla­
tion pressure for that tire .
Maximum loaded vehicle
weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity we ight , and
(d) Production options we ight
33 1

Wheel s
Maximum (permissible)
inflation pressure
means the max imum cold infla­
tion pressure to which a t ire may
be inflated . Also called "maxi ­
mum inflation pressure."
Normal occupant weight
means 150 lbs. (68 k ilograms)
times the number of occupants seated in the vehicle up to the to­
tal seating capacity of your vehi­
cle .
Occupant distribution
means distribution of occupants
in a vehicle.
Outer d iameter
means the overall diamete r of an
inflated new tire.
Overall width
means the linear distance be­
tween the exteriors of the side ­
walls of an inflated tire , including
elevations due to labeling, deco­ rations, or protective bands or
ribs .
Ply
means a layer of rubber-coated
para llel cords.
332
Production options we ight
means the combined weight of
those installed regular product ion
options weighing over 5 lbs . (2 .3
kg) in excess of those standard
items which they replace, not pre­
viously considered in curb weight or accessory weight , including
heavy duty brakes, ride levelers,
roof rack, heavy duty battery, and
special trim.
Radial ply ti re
means a pneumatic tire in which
the ply cords that extend to the beads are la id at substantially 90
degrees to the centerline of the
tread.
Recommended inflation
pressure
see ¢ page 331 , Cold tire infla­
tion pressure.
Reinforced tire
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire . Rein ­
forced tires may be identified as
"XL", "xl", "EXTRA LOAD", or "RF"
on the sidewall. ...

CX> CX> ... N .... N ... 0 N > a:,
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim di amet er
means nominal diameter of the
bead seat. If you change your
wheel size, you will have to pur­
chase new tires to match the new
rim diameter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between
rim flanges.
Sidewall
means that portion of a tire be­
tween the tread and bead.
Speed rating (letter code )
means the speed at wh ich a tire is
designed to be driven for extend­
ed periods of time . The ratings
range from 93 mph (150 km/h)
to 186 mph (298 km/h)
¢ table
on page 329.
You may not find
this information on all tires be­
cause it is not required by law.
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the
Wheels
maximum permissible road
speeds
¢ A in Winter tires on
page 342.
T ire pressure mon itoring
system *
means a system that detects
when one or more of a vehicle's
tires are underinflated and illumi­
nates a low tire pressure warning
telltale.
T read
means that portion of a tire that
comes into contact with the road .
Tread separation
means pulling away of the tread
from the tire carcass.
Treadwear indicators (TWI )
means the projections within the
principal grooves designed to give
a visual indication of the degrees
of wear of the tread. See
¢ page 336, Treadwear indicator
for more information on measur­
ing tire wear .
Uniform Tire Quality Grading
is a tire information system devel­
oped by the United States Nation­
a l Highway Traffic Safety Admin­
istration (NHTSA) that is designed
to help buyers make relative
333
..

Wheels
-Inflation pressure that is too low or high can in­
crease tire wear considerab ly.
-Driving quickly through curves, rap id accelera­
tion and heavy b raking increase tire wear .
-Have an authorized A udi dealer or au thorized
Audi Se rvice Facility check the wheel alignment
if there is unusual wear.
-Have the whee ls rebalanced i f an imbalance is
causing noticeab le vib ration in the steering
whee l. If you do not, the tires and other veh icle
components could wear more quickly.
Treadwear indicator
O rigina l equ ipment t ires conta in treadwe ar indi­
cators in the tread pattern, which are b ars that
are 1/16 in. (1.6 mm) h igh and are spaced evenly
aro und the tire perpendic ular to the runn ing d i­
rection¢ fig. 279. The letters "TWI" or triangles
on the tire sidewall indicate the locat ion of the
treadwear indicators.
The tires have reached the mi nimum tread
dept h
ll when they have worn down to the tread­
wear ind icators. Replace the tires with new ones
¢ .&, .
Tire rotation
Rotating t he tires regular ly is recommended to
ensure the tires wear even ly. To rotate the tires,
install the tires from the rear ax le on the front
axle and v ice versa. This will allow the tires to
have approx imately the same length of service
life.
For unidirectional tires, make sure the tires are
installed according to the running direction indi­
cated on the tire
sidewall¢ page 361 .
Hidden damage
Damage to tires and r ims can often occur i n loca­
tions that are hidden . Unus ua l vibrations in the
veh icle or pulling to one s ide may indicate that
there is tire damage. Reduce your speed immedi­
ately. Check the t ires for damage .
If no damage
is visible from the outside, drive s lowly and care­
fully to the nearest authorized Aud i dealer or au-
l) Obey any applicable reg ulations in you r country.
336
thorized Audi Service Facility to have t he ve hicle
inspected.
A WARNING
Tread that has worn too low or different tread depths on the tires can reduce driving safety.
This can increase the risk of an accident be­
cause it has a negative effect on handling,
d riving through curves, and b raking, and be­
cause it increases the r isk of hydroplaning
when dr iving th rough dee p puddles.
Tire pressure
Fig. 280 Driver's side B-pi llar (e xamp le) :
t ire p ress ure label
;; ~ ~ ~-----------------,:,
• (=~ ~~I: I:. I)@ ::g
»-OOIMING...-ol~..SAflO.....,....,--.d . ... _k Le«-h,...a .. ~etdudw,.uWl>l!tdollil,.._~ 'eou lb.
tw: SIU COI.O TR PRESSURE PNE U lailEHSl0HS "'lSSION OU PNEUS AFRQID
-AVANT -KPA. • PS I
Fig. 281 Tire pressure label
SEE OWNER"S MANUAL FOR ADOrTlONAL INFORMATK>N
VOIR L£ MANUa DU PROPRIETAIRE POUR PLUS DE RENSEIGNEMENTS
The correct tire pr essure for tires
mounted in the fa ctory and for
th e s pare tire * is ind icated on a la ­
bel. The label i s located on th e B-
pillar
¢ f ig . 280, ¢ fig. 2 81 . ..,