weight AUDI TT ROADSTER 2019 User Guide

8S58012721BA
Child safety


— 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 device,
power inverter or seat heater for child
seats). These may influence the electrical
capacitance measured by the capacitive
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 ina collision.
— Always read and heed all WARNINGS when-
ever using a child restrained in a vehicle is
being used > page 182, Safety belts,
=> page 189, Airbag system and > page 210,
Child safety.



ZA WARNING
To reduce the risk of serious injury, make sure
that the PASSENGER AIR BAG OFF 3%; light
comes on and stays on whenever a child re-
straint is installed on the front passenger seat
and the ignition is switched on.
— Never install a reward facing child safety
seat on the front passenger seat if the PAS-
SENGER AIR BAG OFF %; light does not
turn on and stay on.
— Have the airbag system inspected by your
authorized Audi dealer immediately.

Child safety seats
Tat h
Babies and infants up to about one year old and
20 lbs or 9 kg need special rearward-facing child
restraints that support the back, neck and head
in a crash.

2 ©
S
> c a
the passenger seat
> 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
=> page 219.
» Push the child safety seat down with your full
weight to get the safety belt really tight so that
the seat cannot move forward and sideways
more than 1 in (2.5 cm).
Infants up to about one year (20 lbs or 9 kg) are
best protected in special infant carriers and child
safety seats designed for their age group. Many
experts believe that infants and small children
should ride only in special restraints in which the
child faces the back of the vehicle. These infant
seats support the baby's back, neck and head ina
crash > fig. 163.

ZA\ 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 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.

215

Child safety


— Never install a rearward facing child safety
seat on the front passenger seat unless the
PASSENGER AIR BAG OFF 3%; light comes
on and stays on. If the PASSENGER AIR
BAG OFF #¥; light does not come on and stay
on the inflating airbag will hit the child safe-
ty seat or infant carrier with great force and
will smash the child safety seat and child
against the backrest, center armrest, door
or roof. Have the airbag system inspected
immediately 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.
— 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 182, Safety belts,
=> page 189, Airbag system and > page 210,
Important information.



216
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)
inacrash.

BFV-0192

Fig. 164 Schematic overview: installation 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
> page 219.
> Push the child safety seat down with your full
weight to get the safety belt really tight so that
the seat cannot move forward or sideways more
than 1 in (2.5 cm) > page 219.
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).
Toddlers 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 certified
for their size and weight and > fig. 164.

Z\ 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 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 child safety seat
installed on the front passenger seat willbe |>

Child safety

The vehicle's safety belts alone will not fit most
children until they are at least 4 ft 9 in (57 in/
1.45 m) tall and weigh about 80 lbs (36 kg).
Booster seats raise these children up so that the
safety belt will pass properly over the stronger
parts of their bodies and the safety belt can help
protect them ina crash.
> Do not use the convertible locking retractor
when using the vehicle's safety belt to restrain
a child on a booster seat.
> The shoulder belt must lie as close to the cen-
ter of the child's collar bone as possible and
must lie flat and snug on the upper body. It
must never lie across the throat or neck. The
lap belt must lie across the pelvis and never
across the stomach or abdomen. Make sure the
belt lies flat and snug. Pull on the belt to tight-
en if necessary.
Children up to at least 8 years old (over 40 lbs or
18 kg) are best protected in child safety seats de-
signed for their age and weight. Experts say that
the skeletal structure, particularly the pelvis, of
these children is not fully developed, and they
must not use the vehicle safety belts without a
suitable child restraint.
It is usually best to put these children in appro-
priate booster seats. Be sure the booster seat
meets all applicable safety standards.
Booster seats raise the seating position of the
child and reposition both the lap and shoulder
parts of the safety belt so that they pass across
the child's body in the right places. The routing of
the belt over the child's body is very important
for the child's protection, whether or not a boos-
ter seat is used.
Never use the lap belt portion of the vehicle's
safety belt alone to restrain any child, regardless
of how big the child is. Always remember that
children do not have the pronounced pelvic struc-
ture required for the proper function of lap belt
portion of the vehicle's three point lap and
shoulder belts. The child's safety absolutely re-
quires that a lap belt portion of the safety belt be
fastened snugly and as low as possible around
the pelvis. Never let the lap belt portion of the
218
safety belt pass over the child's stomach or abdo-
men.
Ina crash, airbags must inflate within a blink of
an eye and with considerable force. In order to do
its job, the airbag needs room to inflate so that it
will be there to protect the occupant as the occu-
pant moves forward into the airbag.
A vehicle occupant who is out of position and too
close to the airbag gets in the way of an inflating
airbag. When an occupant is too close, he or she
will be struck violently and will receive serious or
possibly even fatal injury.
In order for the airbag to offer protection, it is
important that all vehicle occupants, especially
any children, who must be in the front seat be-
cause of exceptional circumstances, be properly
restrained and as far away from the airbag as
possible. By keeping room between the child's
body and the front of the passenger compart-
ment, the airbag can inflate completely and pro-
vide supplemental protection in certain frontal
collisions.

ZA WARNING
Not using a booster seat, using the booster
seat improperly, incorrectly installing a boos-
ter seat or using the vehicle safety belt im-
properly increases the risk of serious personal
injury and death in a collision or other emer-
gency situation. To help reduce the risk of se-
rious personal injury and/or death:
— The shoulder belt must lie as close to the
center of the child’s collar bone as possible
and must lie flat and snug on the upper
body. It must never lie across the throat or
neck. The lap belt must lie across the pelvis
and never across the stomach or abdomen.
Make sure that the belt lies flat and snug.
Pull on the belt to tighten if necessary.
— Failure to properly route safety belts over a
child's body will cause severe injuries in an
accident or other emergency situation
=> page 182.
— The rear side of the child safety seat should
be positioned as close as possible to the
backrest on the vehicle seat.

8S8012721BA
Child safety

> Route it around or through the child restraint
belt path > A\.
> 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 pull 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 and sideways more than
lin (2.5 cm).

ZA 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 retrac-
tor is locked when installing a child safety
seat. An unlocked safety belt retractor can-
not 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 ina crash.
— Always make sure the seat backrest to which
the child restraint is installed is in an up-
right position. Otherwise, the seatback with
the child safety seat attached to it could fly
forward in the event of an accident or other
emergency situation.
— Always read and heed all WARNINGS when-
ever using a child restrained in a vehicle is
being used > page 210. Special precautions
apply when installing a child safety seat on
the front passenger seat > page 190, Child


restraints on the front seat - some impor-
tant things to know.
Deactivating the convertible locking
dela te] gy
The convertible locking retractor for child re-
straints will be deactivated automatically when
the belt is wound all the way back into the re-
tractor.

> Press the red button on the safety belt buckle.
The belt tongue will pop out of the buckle.
> Guide the safety belt all the way back into its
stowed position.
Always let the safety belt retract completely into
its stowed position. The safety belt can now be
used as an ordinary safety belt without the con-
vertible locking retractor for child restraints.
If the convertible locking retractor should be ac-
tivated inadvertently, the safety belt must be un-
fastened and guided completely back into its
stowed position to deactivate this feature. If the
convertible locking retractor is not deactivated,
the safety belt will gradually become tighter and
uncomfortable to wear.

A WARNING
Improperly installed child safety seats in-
crease the risk of serious personal injury and
death in a collision.
— Never unfasten the safety belt to deactivate
the convertible locking retractor for child re-
straints while the vehicle is moving. You
would not be restrained and could be seri-
ously injured in an accident.
— Always read and heed all WARNINGS when-
ever using a child restrained in a vehicle is
being used > page 210. Special precautions
apply when installing a child safety seat on
the front passenger seat > page 190, Child
restraints on the front seat - some impor-
tant things to know.

221

Wheels

@ US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap-
pear on the inner side of the tire):
DOT... 2218...
means, for example, that the tire
was produced in the 22nd week of
the year 2018.
@) Audi Original Tires
Audi Original equipment tires
with the designation “AO” have
been specially matched to your
Audi. When used correctly, these
tires meet the highest standards
for safety and handling. An au-
thorized Audi dealer or author-
ized Audi Service Facility will be
able to provide you with more in-
formation.
@) Mud and snow capability
“M/S” or “M+S” indicates the tire
has properties making it suitable
to drive in mud or snow. /& indi-
cates a winter tire.
Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay-
ers in the tire. In general: the
more layers, the more weight a
242
tire can carry. Tire manufacturers
must also specify the materials
used in the tire. These include
steel, nylon, polyester 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
resistance
Treadwear, traction and tempera-
ture ranges > page 255.
@ Running direction
@ Maximum permitted
inflation pressure
This number indicates the maxi-
mum pressure to which a tire can
be inflated under normal operat-
ing conditions.
Glossary of tire and loading
terminology
Accessory weight
means the combined weight (in
excess of those standard items
which may be replaced) of auto-
matic transmission, power steer-
ing, power brakes, power

8S8012721BA
Wheels

windows, 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 rim.
Bead separation
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 pres-
sure is measured or adjusted.
Curb weight
means the weight of a motor ve-
hicle with standard equipment in-
cluding the maximum capacity of
fuel, oil, and coolant, air condi-
tioning and additional weight of
optional equipment.
Extra load tire
means a tire designed to operate
at higher loads and at higher in-
flation pressures than the corre-
sponding standard tire. Extra load
tires may be identified as “XL”,
“xl”, “EXTRA LOAD”, or “RF” on
the sidewall.
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 maximum total loaded
weight of the vehicle.
Groove
means the space between two ad-
jacent tread ribs.
243
>

Wheels

Load rating (code)
means the maximum load that a
tire is rated to carry for a given in-
flation pressure. You may not find
this information 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 weight, and
(d) Production options weight
Maximum (permissible)
inflation pressure
means the maximum cold infla-
tion pressure to which a tire may
be inflated. Also called “maxi-
mum inflation pressure.”
Normal occupant weight
means 150 lbs (68 kg) times the
number of occupants seated in
the vehicle up to the total seating
capacity of your vehicle.
244
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 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
parallel cords.
Production options weight
means the combined weight of
those installed regular production
options weighing over 5 lbs
(2.3 kg) in excess of those stand-
ard items which they replace, not
previously considered in curb
weight or accessory weight, in-
cluding heavy duty brakes, ride
levelers, roof rack, heavy duty
battery, and special trim.
Radial ply tire
means a pneumatic tire in which
the ply cords that extend to the >

Wheels

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 249, 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-
al Highway Traffic Safety Adminis-
tration (NHTSA) that is designed
to help buyers make relative com-
parisons among tires. The UTQG is
not a safety rating and not a guar-
antee that a tire will last fora
prescribed number of miles (kilo-
meters) or perform in a certain
way. It simply gives tire buyers
additional information to com-
bine with other considerations,
such as price, brand loyalty and
dealer recommendations. Under
UTQG, tires are graded by the tire
manufacturers in three areas:
treadwear, traction, and tempera-
ture resistance. The UTQG infor-
246
mation on the tires, molded into
the sidewalls.
U.S. DOT Tire Identification
Number (TIN)
This is the tire’s “serial number”.
It begins with the letters “DOT”
and indicates that the tire meets
all federal standards. The next
two numbers or letters indicate
the plant where it was manufac-
tured, and the last four numbers
represent the week and year of
manufacture. For example,
DOT... 2218...
means that the tire was produced
in the 22nd week of 2018. The
other numbers are marketing co-
des that may or may not be used
by the tire manufacturer. This in-
formation is used to contact con-
sumers if a tire defect requires a
recall.
Vehicle capacity weight
means the rated cargo and lug-
gage load plus 150 lbs (68 kg)
times the vehicle's designated
seating capacity.
Vehicle maximum load on the
tire
means that load on an individual
tire that is determined by

Wheels

distributing to each axle its share
of the maximum loaded vehicle
weight and dividing by two.
Vehicle normal load on the tire
means that load on an individual
tire that is determined by distrib-
uting to each axle its share of the
curb weight, accessory weight,
and normal occupant weight (dis-
tributed in accordance with > ta-
ble on page 252) and dividing by
two.
Occupant loading and distri-
bution for vehicle normal load
for various designated seating
capacities
Refer to the tire inflation pressure
label for the number of seating
positions. Refer to the table > ta-
ble on page 252 for the number
of people that correspond to the
vehicle normal load.
New tires or wheels
Audi recommends having all work
on tires or wheels performed by
an authorized Audi dealer or au-
thorized Audi Service Facility.
These facilities have the proper
knowledge and are equipped with
>New tires do not yet have the
optimum gripping properties.
Drive carefully and at moderate
speeds for the first 350 miles
(500 km) with new tires.
> Only use tires with the same de-
sign, size (rolling circumfer-
ence), and as close to the same
tread pattern as possible on all
four wheels.
>Do not replace tires individually.
At least replace both tires on the
same axle at the same time.
> Audi recommends that you use
Audi Original Tires. If you would
like to use different tires, please
note that the tires may perform
differently even if they are the
same size > A.
>If you would like to equip your
vehicle with a tire and rim com-
bination that is different from
what was installed at the facto-
ry, consult with an authorized
Audi dealer or authorized Audi
Service Facility before making a
purchase > A.
Because the spare tire* is differ-
ent from the regular tires instal-
led on the vehicle (such as winter
8S8012721BA
tires or wide tires), only use the
spare tire* temporarily in case of
emergency and drive carefully >
the required tools and replace-
ment parts.
247

Wheels









limits > page 252.
Tires and vehicle load limits
There
are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al-
so damage important parts of the
vehicle and can lead to sudden
tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash.

Your safety and that of your pas-
sengers also depends on making
sure that load limits are not ex-
ceeded. Vehicle load includes ev-
erybody and everything in and on
252

Model/ Tire designation Tire pressure
Engine Normal load Maximum load
(up to 2 people)
Front Rear Front Rear
PSI | kPA | PSI | kPA | PSI | kPA | PSI | kPA
TT: 245/45 R17 95Y 32. | 220 | 29 | 200 | 33 | 230] 30 | 210
2.01 245/40 R18 93H 32 220 | 29 | 200 | 33 | 230 | 30 | 210
4-cylinder — [>45/aorig93y | 32 | 220 | 29 | 200 | 33 | 230 | 30 | 210
245/35 R19 93Y 35 | 240 | 32 | 220 | 35 | 240 | 32 | 220
255/30 R20 92Y 35 | 240 | 32 | 220 | 38 | 260/] 32 | 220
/\ WARNING the vehicle. These load limits are
7 7 ; technically referred to as the vehi-
ease note the important safe- , 7 3 :
rt cle’s Gross Vehicle Weight Rating
ty precautions regarding tire ii ‘i
¥P garang (“GVWR”).
pressure > page 250 and load
The “GVWR” includes the weight
of the basic vehicle, all factory in-
stalled accessories, a full tank of
fuel, oil, coolant and other fluids
plus maximum load. The maxi-
mum load includes the number of
passengers that the vehicle is in-
tended to carry (“seating capaci-
ty”) with an assumed weight of
150 lbs. (68 kg) for each passen-
ger at a designated seating posi-
tion and the total weight of any
luggage in the vehicle.
The Gross Axle Weight Rating
(“GAWR’”) is the maximum load
that can be applied at each of the
vehicle’s two axles.
The fact that there is an upper
limit to your vehicle’s Gross Vehi-
cle Weight Rating means that the >