2017 AUDI A4 roof

Airbag system
A WARNING
A child in a rearward-facing child safety seat
installed on the front passenger seat will be
seriously injured and can be killed if the front
airbag inflates - even with an Advanced Airbag
System.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child against the backrest, center armrest, door
or roof.
- Always install rear-facing child safety seats
on the rear seat.
- If you must install a rearward -facing child
safety seat on the front passenger seat be­ cause of exceptional circumstances and the
PASSENGER AIR BAG OFF,;, light does not
come on and stay on, immediately install
the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your authorized Audi dealer .
A WARNING
Objects between you and the airbag will in­
crease the risk of injury in a crash by interfer ­
ing with the way the airbag unfolds or by be­
ing pushed into you as the airbag inflates.
- Never hold things in your hands or on your
lap when the vehicle is in use .
- Never transport items on or in the area of
the front passenger seat . Objects could
move into the area of the front airbags dur­
ing braking or other sudden maneuvers and
become dangerous projectiles that can
cause serious personal injury if the airbags
inflate.
- Never place or attach accessories or other
objects (such as cupholders, telephone
brackets, large, heavy or bulky objects) on
the doors, over or near the area marked
"AIRBAG" on the steering wheel, instru­
ment panel, seat backrests or between
those areas and yourself . These objects
could cause injury in a crash, especially
when the airbags inflate .
- Never recline the front passenger's seat to
transport objects. Items can also move into
264
the area of the side airbag or the front air­
bag during braking or in a sudden maneu­
ver. Objects near the airbags can become projectiles and cause injury, particularly
when the seat is reclined .
- Never place or transport objects on the
front passenger seat. Objects on the front
passenger seat could cause the capacitive
sensor in the seat to signal to airbag system
that the seat is occupied by a person when it
in fact is not, or that the person on the seat
is heavier than he or she actually is. The
change in electric capacitance because of
such objects can cause the passenger front
airbag to be turned on when it should be
off, or can cause the airbag to work in a way
that is different from the way it would have
worked without objects on the seat .
- Always make sure that there is nothing on
the front passenger seat that will cause the
capacitive passenger detection system in
the seat to signal to the Airbag System that the seat is occupied by a person when it is
not , or to signal that it is occupied by some ­
one who is heavier than the person actually
sitting on the seat. The presence of an ob­
ject could cause the passenger front airbag
to be turned on when it should be off, or
could cause the airbag to work in a way that is different from the way it would have
worked without the object on the seat .
A WARNING
The fine dust created when airbags deploy can
cause breathing problems for people with a
history of asthma or other breathing condi­
tions .
- To reduce the risk of breathing problems,
those with asthma or other respiratory con­
ditions should get fresh air right away by
getting out of the vehicle or opening win­
dows or doors.
- If you are in a collision in which airbags de­
ploy , wash your hands and face with mild
soap and water before eating.
- Be careful not to get the dust into your eyes,
or into any cuts or scratches. ..,_

Child safety
-The child and the passenger can also in­
jure each other in an accident.
- Never install rear-facing child safety seats
or infant carriers on the front passenger
seat. A child will be seriously injured and
can be killed when the passenger airbag in­
flates -even with an Advanced Airbag Sys­
tem.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child
against the backrest, center armrest, door
or roof.
- Always install rear-facing child safety seats
or infant carriers on the rear seat.
- Make sure there is enough space in front of
the child in the child seat. If necessary, ad­
just the angle and position of the seat in
front of the child seat.
- Forward-facing child safety seats installed
on the front passenger's seat can interfere
with the airbag when it inflates and cause
serious injury to the child. Always install for­
ward-facing child safety seats on the rear
seat.
- If exceptional circumstances require the use
of a forward-facing child restraint on the
front passenger's seat, the child's safety
and well-being require that the following
special precautions be taken:
- Make sure the forward-facing seat has
been designed and certified by its manu­
facturer for use on a front seat with a pas­
senger front and side airbag.
- Always carefully follow the manufacturer's
instructions provided with the child safety
seat or carrier.
- Always move the front passenger seat to the highest position in the up and down
adjustment range and move it back to the
rearmost position in the seat's fore and
aft adjustment range, as far away from
the airbag as possible, before installing
the forward-facing child restraint.
- Always make sure that the safety belt up­
per anchorage is behind the child restraint
and not next to or in front of the child re-
282
straint so that the safety belt will be prop­
erly positioned.
- Always make sure that nothing prevents
the front passenger's seat from being
moved to the rearmost position in its fore
and aft adjustment range.
-Always make sure that the backrest is in
the upright position.
- Never place or use any electrical device
(such as a laptop, CD player, electronic
games device, power inverter or seat heat­
er for child seats) on the front passenger seat if the device is connected to the 12-
volt socket or the cigarette lighter socket.
- If a seat heater has been retrofitted or
otherwise added to the front passenger
seat, never install any child restraint sys­
tem on this seat.
- Make sure that there are no wet objects
(such as a wet towel) and no water or oth­
er liquids on the front passenger seat
cushion.
- Never place objects on the seat (such as a
laptop, CD player, electronic games de­
vice, power inverter or seat heater for
child seats). These may influence the elec­
trical capacitance measured by the capaci­
tive passenger detection system and can
also fly around in an accident and cause
serious personal injury.
- Always buckle the child safety seat firmly in
place even if a child is not sitting in it. A
loose child safety seat can fly around during
a sudden stop or in a collision .
- Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used<::;>
page 245, Safety belts,
c::> page 253, Airbag system and
c::> page 277, Child safety.
.8. WARNING
To reduce the risk of serious injury, make sure
that the
PASSENGER AIR BAG OFF 11,;; light
comes on and stays on whenever a child re­
straint is installed on the front passenger seat
and the ignition is switched on. .,_

Child safety
seats support the baby's back, neck and head in a
crash
¢ fig. 230.
The airbag on the passenger side makes the front
seat a potentially dangerous place for a child to ride. The front seat is not the safest place for a
child in a forward-facing child seat. It is a very
dangerous place for an infant or a larger child in
a rearward-facing seat .
A WARNING
Not using a child safety seat, using the wrong
child safety seat or improperly installing a
child restraint increases the risk of serious
personal injury and death in a crash.
- Never install rear -facing child safety seats
or infant carriers on the front passenger
seat -even with an Advanced Airbag System.
A child will be seriously injured and can be killed when the inflating airbag hits the
child safety seat or infant carrier with great
force and smashes the child safety seat and child against the backrest, center armrest,
door or roof<=>
page 254, Child restraints on
the front seat -some important things to
know .
-Always install rear-facing child safety seats
or infant carriers on the rear seat.
- Never install a rear-facing child restraint in the forward-facing direction. Such restraints
are designed for the special needs of infants and very small children and cannot protect
them properly if the seat is forward-facing .
- If you must install a rearward facing child safety seat on the front passenger seat be­cause of exceptional circumstances and the
PASSENGER AIR BAG OFF~; light does not
come on and stay on, immediately install
the rear-facing child safety seat in a rear
seating position and have the airbag system
inspected by your Audi dealer.
- Never place or use any electrical device (such as a laptop, CD player, electronic
games device, power inverter or seat heater
for child seats) on the front passenger seat
if the device is connected to the 12-volt
socket or the cigarette lighter socket.
284
- If a seat heater has been retrofitted or oth­
erwise added to the front passenger seat,
never install any child restraint system on
this seat .
- Make sure that there are no wet objects
(such as a wet towel) and no water or other
liquids on the front passenger seat cushion.
- Never place objects on the seat (such as a
laptop, CD player, electronic games device,
power inverter or seat heater for child
seats) . These may influence the electrical
capacitance measured by the capacitive pas­
senger detection system and can also fly
around in an accident and cause serious per­
sonal injury.
- Always read and heed all WARNINGS when­
ever using a child restrained in a vehicle is
being used
¢ page 245, Safety belts,
¢ page 253, Airbag system and
c> page 277, Important information.

Convertible child safety seats
Properly used convertible child safety seats can
help protect toddlers and children over age one
who weigh between
20 and 40 lbs. (9 and 18 kg)
in a crash.
Fig. 231 Schematic overv iew: insta llatio n of the attach­
ments applicab le to a LATCH seat
Fig. 232 Schematic overv iew: installat ion of the seat using
the vehicle 's safety belt system
.. When using the vehicle safety belt to install a
child safety seat, you must first activate the
convertible locking retractor on the safety belt
to prevent the child safety seat from moving
Q page 288 or install the seat us ing the LATC H
attachments .
.. Push the child safety seat down with your fu ll
weight to get the safety belt really tight so that
the seat cannot move forward o r sideways
more than one inch (2.5 cm)
Q page 288.
.. If the child safety seat is equipped with a tether
strap, attach it to the tether anchors
Q page293.
.. Secure unused safety belts on the rear seat
Q page 283.
A toddler or child is usually too large for an in­
fant restraint if it is more than one year old and
weighs more than 20 lbs. (9 kg).
Child safety
To ddlers and children who are older than one
year up to about 4 years old and weigh more than
20 lbs. (9 kg) up to 40 lbs. (18 kg) must always
be properly restrained in a child safety seat certi­
fied for their size and weight
Q fig. 231 and
q fig . 232.
The airbag on the passenger side makes the front
seat a potentially dangerous place for a child to
ride. The front seat is not the safest place for a
child in a forward-facing child safety seat. It is a
very dangerous place for an infant or a larger
child in a rearward-facing seat .
_&. WARNING
Not using a child safety seat, us ing the wrong
child safety seat or improperly instal ling a
chi ld restraint increases the risk of serious
personal injury and death in a collision or oth ­
er emergency situation.
- Children on the front seat of any car, even
with Advanced Airbags, can be seriously in­
jured or even killed when an airbag inflates.
A child in a rearward-facing ch ild safety seat
installed on the front passenger seat will be
seriously injured and can be killed if the
front airbag inflates -even with an Ad­
vanced Airbag System.
- The inflating airbag will hit the child safety
seat or infant carr ier with great force and
will smash the child safety seat and child
against the backrest, center armrest, door
or roof.
-Al ways install rear-fa cing child safety seats
on the rear seat .
- If you must insta ll a rearward facing child
safety seat on the front passenger seat be­
cause of excep tional circumstances and the
PASSENGER AIR BAG OFF '-I; light does not
come on and stay on, immediately insta ll
the rear-facing child safety seat in a rear
seating position and have the a irbag system
inspected by your Audi dealer .
- The rear side of the ch ild safety seat shou ld
be positioned as close as possible to the
backrest on the veh icle seat. Adjust or re­
move the rear seat head restraint if it is dif­
f icult to install the child seat with the head
285

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3 a,
A WARNING 1-= -
Improperly installed child safety seats in­
crease the risk of serious personal injury and
death in a collision .
- Always make sure that the safety belt re­
tractor is locked when installing a child
safety seat . An unlocked safety belt retrac­
tor cannot hold the child safety seat in place
during no rma l driving or in a crash.
- Always buckle the child safety seat firmly in
place even if a child is not sitting in it. A
loose child safety seat can fly around d uring
a sudden stop or in a collision .
- Always ma ke sure that the rear seat bac k­
rest to wh ich the center rea r safety be lt is
attached is secure ly latched whenever the
rear center safety belt is being used to se­
cure a ch ild rest raint.
- If the backrest is not securely latched, the
child and the child restraint will be thrown
forward together with the backrest and will
strike parts of the vehicle interior. The ch ild
can be seriously injured or killed.
- Never install rear-facing child safety seats or infant carriers on the front passenger
seat. A child will be serious ly injured and
can be killed when the passenger airbag in ­
flates .
- The inflating a irbag w ill hit the child safety
seat or infant carrier with great force and
will smash the ch ild safety seat and ch ild
against the backrest, center armrest, door
o r roof.
- Always install rear-faci ng child safety seats
o r infant carriers on the rear seat.
- Forward-fac ing ch ild safety seats or infant
c a rriers ins talled on the front passenge r's
seat may inte rfe re with t he deployment of
the a irbag and cause serious injury to the
child.
- It is s afe r to ins tall a forward-fac ing ch ild
sa fety seat on the rear seat.
- Always read and heed all WARN INGS when­
ever using a child res trained in a veh icle is
being used
r:o page 2 77. Spec ia l precautions
apply when installing a child safety seat on
the front passenger seat
¢ page 2 54, Child
Ch ild safety
restraints on the front seat -some impor­
tant things to know.
A WARNING
-A lways take special precautions if you must
i nstall a forward or rearward-facing child re­
stra int on the front passenger's seat in excep ­
tional s ituations:
- Whenever a forward or rearward-fac ing
child restraint is installed on the front pas ­
senger seat, the
PASSENGER AIR BAG OFF
~; light must come on and stay on whenev­
er the ign ition is switched o n.
- I f the
PASSENGER AIR BAG OFF~; light
does not come on and stay on, perform the
checks desc ribed
r:o page 265, Monitoring
the Advanced Airbag System.
- Take the child restra int off the front passen­
ge r seat and install it prope rly at one of the
rear seat positions i f the
PASSENGER AIR
BAG OFF~;
light does not stay on whenever
the ignition is switched on .
- Improper installat ion of child res tra ints can
reduce their effectiveness or even prevent
them f rom providing any protect ion .
- An improperly installed child restraint can
interfere with the airbag as it deploys and
serious ly injure or even kill the chi ld.
- Always carefully follow the manufacturer's
instr uctions provided with the child safety
seat or carr ier .
- After checking to make sure that the c hild
restraint is properly installed, make certain
that the child restraint is correctly recog­
n ized by the capacitive passenger detection
system in the front passenger seat and that
the
PASSENGER AIR BAG OFF~; light sig­
na ls the cor rect front passenger fronta l air­
bag status.
A WARNING
F orwa rd-facing child restra ints:
- Always make sure the forward-facing seat
has bee n des igned and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and side airbag.
-
289

Child safety
-Never put the forward-facing child restraint
up, against or very near the instrument pan­
el.
- Always move the front passenger seat to
the highest position in the up and down ad­
justment range and move it back to the
rearmost position in the seat's fore and aft
adjustment range, as far away from the air­
bag as possible, before installing the for­
ward-facing child restraint.
- Always make sure that the safety belt upper
anchorage is behind the child restraint and
not next to or in front of the child restraint
so that the safety belt will be properly posi­
tioned.
- Make sure that the
PASSENGER AIR BAG
OFF~ ;
light comes on and stays on all the
time whenever the ignition is switched on.
A WARNING
Rearward-facing child restraints:
- A child in a rearward-facing child safety seat
installed on the front passenger seat will be
seriously injured and can be killed if the
front airbag inflates -even with an Ad­
vanced Airbag System.
- The inflating airbag will hit the child safety
seat or infant carrier with great force and
will smash the child safety seat and child
against the backrest, center armrest, door
or roof .
- Always be especially careful if you must in­
stall a rearward facing child safety seat on
the front passenger seat in exceptional cir­
cumstances .
- Make sure that the
PASSENGER AIR BAG
OFF~;
light comes on and stays on all the
time whenever the ignition is switched on.
- If the
PASSENGER AIR BAG OFF~; light
does not come on and stay on, immediately
install the rear-facing child safety seat in a
rear seating position and have the airbag
system inspected by your Audi dealer .
290
· Activating the convertible locking retractor
Use the convertible locking retractor to secure a
child restraint.
Always heed the child safety seat manufacturer 's
instructions when installing a child restrain t in
your vehicle . To activate the convertible locking
retractor:
.. Place the child restraint on a seat, preferably
on the rear seat .
.. Slowly pull the belt
all the way out .
.. Route it around or through the child restraint
belt path
~ ,&. .
.. Push the child safety seat down with your full
weight to get the safety belt really tight.
.. Insert the belt tongue into the buckle for that
seating position.
.. Guide the safety belt back into the retractor un­
til the belt lies flat and snug on the child safety
seat.
.. You should hear a "clicking" noise as the belt
winds back into the inertia reel. Test the con ­
vertible locking retractor by pulling on the belt.
You should no longer be able to putt the belt
out of the retractor. The convertible locking re­
tractor is now activated .
.. Make sure that the red release button is facing
away from the child restraint so that it can be
unbuckled quickly.
.. Pull on the belt to make sure the safety belt is
properly tight and fastened so that the seat
cannot move forward or sideways more than
one inch (2 .5 cm) .
A WARNING
Using the wrong child restraint or an improp­
erly installed child restraint can cause serious
personal injury or death in a crash.
- Always make sure that the safety belt re­
tractor is locked when installing a child
safety seat. An unlocked safety belt retrac­
tor cannot hold the child safety seat in place
during normal driving or in a crash.
- Always buckle the child safety seat firmly in
place even if a child is not sitting in it. A
loose child safety seat can fly around during
a sudden stop or in a crash.

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3 a,
& WARNING
Charging a battery can be dangerous.
- Always follow the operat ing instruct ions
provided by the battery charger manufactur­
er when charging your battery .
- Never charge a frozen ba ttery . It may ex­
plode because of gas trapped in the ice. A l­
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 we ll ventilated area.
Keep away from open flame or electrical
spark. Do not smoke . Hydrogen gas generat­
ed by the battery is exp losive.
- To reduce the danger of explosion, never
connect or disconnect charger cables whi le
the charger is operat ing.
- Fast charging a battery is dangerous and
should only be attempted by a competent
technician with the proper equipment.
- Battery acid that may spill during charging
should be washed off with a solution of
warm water and baking soda to neutralize
the acid .
(D Note
Never use a fast charger as a booster to start
the engine. This will serious ly damage sensi­
tive electronic components, such as control
units, relays, radio, etc ., as well as the battery
charger .
Replacing the battery
Your veh icle is equipped with an inte llige nt ene r­
gy management system for d istr ibut ing elect rici ­
ty ¢
page 138. The battery cha rges better in
vehicles with the en ergy management system
than in vehicles without the system. To ensure
that th e additional pow er is availabl e after re ­
p lac ing the battery, rep lacing w ith the same type
of b attery from the s ame manufac turer ( like the
battery that was delivered with the veh icle) is
recommended . Yo ur authorized deale r must code
the battery in the energy management system to
Ch eck ing and Filling
enable you to use the energy management func­
tions corr ectly aft er replacing the batt ery .
If it is no t possib le to use a battery of this type,
the new battery mus t have the same capacity,
vo ltage ( 12-volts), amperage, construction and
plug sealing.
When install ing the battery, make sure the ig ni­
t ion and all electr ica l cons umers are tu rned off.
Q) Note
- Vehicles, fo r example with a Start-Stop sys­
t em*, a re equipped with a specia l cycle­
proof bat tery (such as an AGM battery). In­
sta lling a different type of battery can cause
prob lems in the veh icle elect rical system .
When replacing the vehicle battery, always
install one w ith the same specifications as
the origina l battery.
- Make sure that the gas venting hose is al­
ways connected to the original opening on the battery s ide . Otherw ise gasses or bat­
tery acid could leak out .
- Battery mounts and clamps must always be
secured correct ly .
- Read and follow the warn ings under
¢
page 313, Working on the battery before
performing any work on the battery.
® For the sake of the environment
Because of the problem of proper d isposa l of
a battery, we recommend your authori zed
Audi dealer change the battery for you. Bat ­
teries contain sulfur ic acid and lead and must
always be disposed of properly in compliance
wi th a ll envi ronmenta l reg ulat ions. Dispos ing
of veh icle bat teries improperly is very da nger­
ous to the environment.
315

Maximum (permissible )
inflat ion pressure
means the maximum cold infla­
tion pressure to wh ich a t ire may
be inflated . Also called "maxi ­
mum inflation pressure ."
Normal occupant weight
means 150 lbs . (68 kilograms)
times the numbe r of occupants
seated in the veh icle up to the to­
tal seating capacity of your vehi­
c le .
Occupant distribution
means distribution of occupants
in a vehicle .
Outer diameter
means the overall diameter of an
inflated new tire .
Overall width
means the linear dis ta n ce be­
tween the exteriors of the side ­
walls of an inflated tire, inc luding
e levations due to labeling, deco­
rations, or protect ive bands or
ribs.
Ply
means a layer of rubber-coated
parallel cords .
Wheels
Production options weight
means the combined weight of
those installed regular production
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 d uty ba tte ry , and
special trim .
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the
beads are laid at substantia lly 90
degrees to the centerline of the
tread .
Recommended inflation
pressure
see ¢ page 320, Cold tire infla­
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at higher in ­
fl at ion pressures than the corre­
sponding standard tire. Rein­
forced tires may be identified as
"X L", "x l", "EXTRA LOA D", or "RF"
on the s idewa ll. ..,
321