2018 AUDI TT ROADSTER tire pressure

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@ Note
Never drive until the tank is completely emp­
ty. The irregular supply of fuel that results
from that can cause engine misfires. Uncom­
busted fuel will then enter the exhaust sys­
tem. Th is can cause overheating and damage
to the catalytic converter.
Indicator lights
Description
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal­
functions.
With some indicator lights, messages may ap ­
pear and warning signals may sound. The indica ­
tor lights and messages in the display can be cov­
ered by other displays. To show them again, se­
lect the tab for indicator lights and messages us­
ing the multifunction steering wheel
¢ page 17. If there are several malfunct ions,
you can display them one at a time us ing the
thumbw heel.
Some ind icator lights in the d isplay can display in
several colors .
Overview
Some indicator lights turn on briefly as a function
check when you switch the ign ition on. These sys­
tems are marked with a
./ in the following tables.
I f one of these indicator lights does not turn on,
there is a ma lfunction in that system.
Red indicator lights
---------------
US A models : brake system ./
¢page 10
Canada models: brake system ./
¢page 10
USA models: electromechanical
parking
brake¢ page 11
Canada models: electromechanical
parking
brake¢ page 11
Cooling system
¢ page 12
Instruments and indicator lights
Engine oil pressure
¢ page 12
Alternator
¢p age 12
Engine stop while driving
¢page 13
Safety be lt
¢ page 13
Electromechanical steering./
¢page 89
Steering lock
¢page 13
Central indicator light
¢page 13
En gine start system
¢page 13
Transmission ma lfunction
¢ page 68
Rear spoiler
¢page 90
Yellow indicator lights
Electronic Stabil iz ation Control (ESC)
./ ¢p age 13
Electronic Stabilization Contro l (ESC)
./ ¢pag e 13
USA models: anti-lock braking sys­
tem
(ABS)./¢ page 13
Canada models: anti-lock braking
system
(ABS)./ ¢ page 13
Safety systems ./
¢page 14
USA models: brake pads ¢page 14
Canada models: bra ke pads
¢ page 14
Electromechanical parking brake
¢page 11
Tire pressure
¢ page 261 or¢ page 262
Tire pressure
¢ page 261 or¢ page 262
9

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Safe driving Basics
Safe driving habits
Please remember -safety first!
The individua l safety features of your vehicle can
work together 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 .
This chapter contains important informat ion,
tips, instruct ions and warn ings that you need to
read and observe for your own safety, the safety
of your passenge rs and others . We have summar­
i zed here w hat you need to know about safety
be lts, a irbags, child restra ints as well as child
safety. Yo ur 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 informa tion in t his sect ion app lies to all
model versions of your vehicle. Some of the fea ­
tures described in t his sections may be standard
eq uipment on some models, or may be optional
equ ipment on others. If you are not sure, ask
your author ized Audi dealer.
A WARNING
-Always make sure that you follow the in­
st ruct ions and heed the WAR NINGS in t his
Manua l. It is in your i nterest a nd in the in­
t e res t of your passengers .
-
-Always keep the complete Owner's Litera­
t ur e in yo ur Audi whe n you lend or se ll yo ur
vehicle so tha t this import ant information
w ill a lways be available to t he d rive r and
passengers.
-Alw ays keep t he Owne r's lite rature h andy so
that you can f ind it easily if yo u have ques ­
tions .
Safe dri ving
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 passenger,
b efor e driving alw ay s:
.. Make sure that a ll lights and s ignals are operat­
ing correctly.
.. Make sure tha t the tire pressure is correct .
.. Make sure that all windows are clean and afford
good vis ibility to the outs ide .
.. Secure all luggage and othe r items ca refully
c::> page 183, c::> page 49.
.. M ak e sure tha t not hing c an in terfere wi th the
peda ls .
.. Adj ust seat and mirrors correctly for your
height .
.. Make sure to use the right child restra int cor­
rectly to protect children
c::> page 216, Child
safety.
.. Sit properly in your seat and make sure that
your passenger do the
same ¢ page 46, Front
seats.
.. Fasten yo ur safety belt and wear i t properly. Al­
so inst ru ct yo ur passenge r to fas ten his safety
be lt properly
¢ page 187.
What impairs driving safety?
Safe driving is dire ctly related to the condition of
the vehicle, the driver as well as the driver's abili­
ty to concentrate on the road without being dis ­
tracted.
T he dr iver is responsib le for the sa fe ty of the ve ­
hicle and a ll of its occupants. If your ability to
drive is impai red, safety risks for everybody in the
vehicl e inc rease and you a lso become a hazard to
everyone else on the road
¢ A_ . Therefore:
.. Do not let yourse lf be distracted by passenge r
or by using a ce llular telephone .
.. NEVER drive when your driving ability is im ­
pa ired (by med ications, alcohol, drugs, etc.) .
.. Observe all traffic laws, rules of the road and
speed lim its and plain common sense .
.. ALWAYS adjust your speed to road, traffic and
weather conditions .
.,.
179

Safe driving
on the safety compliance sticker on the left
door jamb. Exceeding permissible weight
standards can cause the vehicle to slide and handle differently .
- Please observe information on safe driving
9 page 179.
A WARNING
To help prevent poisonous exhaust gas from
being drawn into the vehicle, always keep the
rear lid closed while driving.
- Never transport objects larger than those
fitting completely into the luggage area be­ cause the rear lid cannot be fully closed .
- If you absolutely must drive with the rear lid open, observe the following notes to reduce
the risk of poisoning:
- Close all windows,
- Close the convertible top,
- Open all air outlets in the instrument pan-
el,
- Switch off the air recirculation,
- Set the fresh air fan to the highest speed .
A WARNING
.
-
Always make sure that the doors, all win­
dows, the convertible 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.
184
@ Tips
- Air circulation helps to reduce window fog­
ging. Stale air escapes to the outside
through vents in the trim panel, on the left
side of the luggage compartment. 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 ¢page255.
Tie -downs
The luggage compartment is equipped with four
tie-downs to secure luggage and other items.
I A UD I I
Fig. 151 Lu ggage compartmen t: loca tion of the tie -dow ns
Use the tie-downs to secure your cargo properly
9page 183, 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 lbs
(4.5 kg) object are about 20 times the normal
weight of the item. This means that the weight
of the item would suddenly be about
...

Wheel s
0 US DOT number (TIN) and
manufacture date
T he manufacture date is listed on
the tire sidewall (it may only ap­
pear on the inner side of the tire) :
DOT ... 2217 ...
means, for example, that the tire
was produced in the 22nd week of
the year 2017.
@ 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/5" or "M+S" indicates the tire
has properties ma king it suitable
to drive in mud or snow.
& indi­
cates a winter t ire .
@) Compos ition of the tire cord
and materials
T he number of plies indicates the
number of rubberized fabric lay­
ers in the tire . In general: the
more layers, the more weight a
246
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 max i­
mum load in kilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for treadwear,
tr action and temper ature
resistance
Treadwear, traction and tempera­
ture
ranges ~ page 260.
@ Running direction
@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
Accessory weight
means the comb ined weight (in
excess of those standard items
which may be replaced) of auto­ matic transmission, power steer -
ing, power brakes, power
..

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
reinfo rced 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 t ire pressure recom­
mended by the vehic le manufac­
turer for a tire of a designated
Wheels
three hour period before the tire
pressure is measured or adjusted .
Curb weight
means the weight of a motor ve­
hicle with standar d equipment in ­
c luding the maximum capacity of
f u el, oi l, and coolant, air condi ­
tioning and additional weight of
optional eq uipment.
Extra load ti re
means a t ire designed to operate
at higher loads and at higher in ­
flation pressures than the corre­
sponding s tandard tire. Extra load
ti res may be identified as
"XL",
"xl" "EXT RA 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 maxim um total loaded
weight of the vehic le .
Groove
size that has not been driven for means the space between two ad -
~ more than a co uple of miles (kilo -jacent tread ribs . .,.
"
8 meters) at low speeds in the
" "' a:,
2 47

Wheel s
Load rating (code )
means the maximum load that a
tire is ra ted to carry for a given in­
flation pressure. You may not find
this info rmatio n 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
Ma ximum (permissible )
inflation pressure
means the maximum cold infla­
tion pressure to which a tire may be inflated . A lso 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.
248
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, inc lud ing
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 ti re
means a pneumatic tire in which
the ply cords that extend to the
...

0 co .... N
" N .... 0
" "' co
beads are laid at substantially
90 degrees to the centerline of
the tread .
Recommended inflation
pressure
see ¢ page 247, Cold tire infla­
tion pressure .
Reinforced tire
means a tire designed to operate
at higher loads and at h igher in ­
flation pressures than the corre­
sponding standard tire. Rein­
forced tires may be identified as
"XL", "xl", "EXT RA L OAD", or "RF"
on the sidewa ll.
Rim
means a metal support for a tire
or a tire and tube assemb ly upon
which the t ire beads are seated .
Rim diameter
means nominal diameter of the
bead seat . If you change your
whee l size, you will have to pu r­
c h ase new t ires to match the new
rim diameter .
Rim size designation
means rim diamete r and width .
Rim width
means nominal distance between
rim flanges .
Wheels
Sidewall
means that portion of a tire be ­
tween the tread and bead .
Speed rating (letter code)
means the speed at which a tire is
designed to be driven for extend­
ed periods of time. The ra tings
range from
93 mph (150 km/h)
to
186 mph (298 km/h) ¢ table
on page 245 .
You may not find
this informat ion 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 t he
maximum pe rmissible roa d
speeds . See also ¢
A in General
information on page 244.
Tire pressure monitoring
system *
means a system that detects
when one or more of a vehicle's
ti res are underinflated and illumi ­
nates a low tire pressure warning
telltale .
Tread
means that portion of a ti re that
comes into contact with the road .
.,.
249

0 a, .... N
Tire wear/damage
Fig. 188 Tire profile: treadwear indica­
tor
Tire wear
Check the tires regular ly for wear.
-Inflation pressure that is too low
or high can increase tire wear
considerably.
-Driving quickly through curves, rapid acceleration and heavy
braking increase tire wear.
-Have an authorized Audi dea ler
or authorized Audi Service Facili­
ty check the wheel alignment if
there is unusual wear.
-Have the wheels rebalanced if an imbalance is causing noticeable
vibration in the steering wheel.
If you do not, the tire s and other
vehicle components could wear more quickly.
~ l) Obey any applicable regulations in your 0
[;:; country. 00
Wheels
Treadwear indicator
Original equipment tires contain
treadwear indicators in the tread
pattern, which are bars that are 1/16 in (1.6 mm) high and are
spaced evenly around the tire per­ pendicular to the running direc­
tion
c:> fig. 188. The letters "TWI"
or triangles on the tire sidewall indicate the location of the tread­
wear indicators.
The tires have reached the mini ­
mum tread depth
l) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones
c:> ..1,,. .
Tire rotation
Rotating the tires regularly is rec­
ommended to ensure the tires
wear evenly. To rotate the tires, install the tires from the rear axle
on the front axle and vice versa.
This w ill allow the tires to have
approximately the same length of
service life.
..,.
253