2019 AUDI TT ROADSTER steering

Airbag system

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airbag system
Airbags are only supplemental restraints. Always
wear safety belts correctly and ride in a proper
seating position.
There is a lot that you and your passenger must
know and do to help the safety belts and airbags
to provide supplemental protection.

ZA WARNING
An inflating knee airbag can cause serious in-
jury. Wearing safety belts incorrectly and im-
proper seating positions increase the risk of
serious personal injury and death whenever a
vehicle is being used.
— The knee airbag system cannot protect you
properly if you are seated too close to any of
the airbag locations. When adjusting their
seat positions, it is important that both the
driver and the front passenger keep their
upper bodies and knees at the following
minimum safe distances:
—at least 10 in (25 cm) between the chest
and
the steering wheel/instrument panel.
—at least 4 in (10 cm) between the knees
and the lower part of the instrument pan-
el.
— The risk of personal injury increases if you
lean forward or to the side, or if the seat is
improperly positioned and you are not wear-
ing your safety belt. The risk increases even
more should the airbag deploy.
— Always make sure that the knee airbag can
inflate without interference. Objects be-
tween you and the airbag can increase the
risk of injury in an accident by interfering
with the way the airbag deploys or by being
pushed into you as the airbag deploys.
— Never let anybody, especially children or
animals ride in the footwell in front of the
passenger seat. If the airbag deploys, this
can result in serious or fatal injuries.
— Never carry objects of any kind in the foot-
well area in front of the driver's or pas-
senger's seat. Bulky objects (shopping
bags, for example) can interfere with or
prevent proper deployment of the airbag.

206

Small objects can be thrown through the
vehicle if the airbag deploys and injure you
or your passenger.
— Make sure there are no cracks, deep scratch-
es or other damage in the area of the instru-
ment panel where the knee airbags are lo-
cated.
— If children are incorrectly seated, their risk
of injury increases in a collision > page 210,
Child safety.

Side airbags
Description of side airbags
The airbag system can provide supplemental
protection to properly restrained occupants.

The side airbags are located in the sides of the
front seat backrests > fig. 161 facing the doors.
They are identified by the word “AIRBAG”.
The side airbags installed for the front seating
positions have been designed and certified to
help reduce the risk of injury that can be caused
by airbags when they inflate, particularly when
the occupant sitting next to it is not seated prop-
erly. The side airbag for the front passenger seat
can be used with properly installed child re-
straints. Please be sure to read the important in-
formation and warnings whenever using a child
restraint in a vehicle: Safety belts > page 182,
Airbag system > page 189, Child safety
=> page 210.
The side airbag system basically consists of:
— the electronic control module and external side
impact sensors

Child safety

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Your vehicle is equipped with a front “Advanced
Airbag System” in compliance with United States
Federal Motor Vehicle Safety Standard (FMVSS)
208, as well as Canada Motor Vehicle Safety
Standard (CMVSS) 208 as applicable at the time
your vehicle was manufactured.
The Advanced Airbag system in your vehicle has
been certified to meet the “low-risk” require-
ments for 3- and 6-year old children on the pas-
senger side and small adults on the driver side.
The low risk deployment criteria are intended to
reduce the risk of injury through interaction with
the airbag that can occur, for example, by being
too close to the steering wheel and instrument
panel when the airbag inflates. In addition, the
system has been certified to comply with the
“suppression” requirements of the Safety Stand-
ard, to turn off the front airbag for infants up to
12 months who are restrained on the front pas-
senger seat in child restraints that are listed in
the Standard.
Even though your vehicle is equipped with an Ad-
vanced Airbag system, a child should always ride
in the seat properly restrained for its age and
size. 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
can be a very dangerous place for an infant or a
larger child in a rearward-facing seat.
The vehicle's Advanced Airbag System has a ca-
Pacitive passenger detection system in the front
passenger seat cushion that can detect the pres-
ence of a baby or a child ina child restraint sys-
tem on this seat.
The capacitive passenger detection system regis-
ters the changes that result in an electrical field
when a child, a child restraint, and a baby blanket
are on the front passenger seat. The change in
the measured capacitance due to the presence of
a child, a child restraint, and a baby blanket on
the front passenger seat is related to the child re-
straint system resting on the seat. The measured
capacitance of a child restraint system varies de-
212
pending on the type of system and specific make
and model.
The electrical capacitance of the various types,
makes, and models of child restraints specified
by the U.S. National Highway Traffic Safety Ad-
ministration (NHTSA) in the relevant safety
standard are stored in the Advanced Airbag Sys-
tem control unit together with the capacitances
typical of infants and a 1-year old child. When a
child restraint is used on the front passenger seat
with a typical 1 year-old infant, the Advanced Air-
bag System compares the capacitance measured
by the capacitive passenger detection system
with the data stored in the electronic control
unit.
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system
Regardless of the child restraint that you use,
make sure that it has been certified to meet Safe-
ty Standards and has been certified by its manu-
facturer for use with an airbag. If in exceptional
circumstances you must use it on the front pas-
senger seat, carefully read all of the information
on child safety and Advanced Airbags and heed
all of the applicable WARNINGS. Make certain
that the child and child restraint are correctly rec-
ognized by the capacitive passenger detection
system in the front passenger seat, that the front
passenger airbag is turned off, and that the air-
bag status is always correctly signaled by the
PASSENGER AIR BAG OFF #; light.
Many types and models of child restraints have
been available over the years, new models are in-
troduced regularly incorporating new and im-
proved designs and older models are taken out of
production. Child restraints are not standardized.
Child restraints of the same type typically have
different
weights and sizes and different “foot-
prints”, the size and shape of the bottom of the
child restraint that sits on the seat, when they
are installed on a vehicle seat. These differences
make it virtually impossible to certify compliance
with the requirements for advanced airbags with
each and every child restraint that has ever been
sold in the past or will be sold over the course of
the useful life of your vehicle.

8S8012721BA
Wheels

Tire wear
Check the tires regularly 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 dealer
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 tires and other
vehicle components could wear
more quickly.
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 > fig. 182. The letters “TWI”
or triangles on the tire sidewall
indicate the location of the tread-
wear indicators.

D Obey any applicable regulations in the
country where the vehicle is being oper-
ated.
The tires have reached the mini-
mum tread depth ) when they
have worn down to the treadwear
indicators. Replace the tires with
new ones > A.
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 will allow the tires to have
approximately the same length of
service life.
For unidirectional tires, make sure
the tires are installed according to
the running direction indicated on
the tire sidewall > page 273.
Hidden damage
Damage to tires and rims can of-
ten occur in locations that are hid-
den. Unusual vibrations in the ve-
hicle or pulling to one side may
indicate that there is tire damage.
Reduce your speed immediately.
Check the tires for damage. If no
damage is visible from the out-
side, drive slowly and carefully to >
249

8S8012721BA
Wheels

overheat and can lead to tire failure. Under-infla-
tion also reduces fuel efficiency and tire tread
life, and may affect the vehicle's handling and
stopping ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re-
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the level
to trigger illumination of the TPMS low tire pres-
sure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the sys-
tem is not operating properly. The TPMS mal-
function indicator is combined with the low tire
pressure telltale. When the system detects a
malfunction, the telltale will flash for approxi-
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal-
function exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
If the Tire Pressure Monitoring System
indicator appears
Applies to: vehicles with Tire Pressure Monitoring System in-
dicator
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system malfunction.
Using the ABS sensors, the tire pressure monitor-
ing system compares the tire tread circumference
and vibration characteristics of the individual
tires. If the pressure changes in one or more
tires, this is indicated in the Infotainment system
display with an indicator light @ and a message.
If only one tire is affected, the location of that
tire will be indicated.
The tire pressures must be stored in the Infotain-
ment system again each time the pressures
change (switching between partial and full load
pressure) or after changing or replacing a tire on
your vehicle > page 258. The tire pressure moni-
toring system only monitors the tire pressure you
have stored. Refer to the tire pressure label for
the recommended tire pressure for your vehicle
=> page 250, fig. 184.
Tire tread circumference and vibration character-
istics can change and cause a tire pressure warn-
ing if:
— The tire pressure in one or more tires is too low
— The tire has structural damage
— The tire was replaced or the tire pressure was
changed and it was not stored > page 258
— The spare tire* is installed
Indicator lights
@® - Loss of pressure in at least one tire > A\.
Check the tires and replace or repair if necessary.
Check/correct the pressures of all four tires and
store the pressure again in the Infotainment sys-
tem > page 258.
ia (Tire Pressure Monitoring System) Tire pres-
sure: malfunction! See owner's manual - if io
appears after switching on the ignition or while
driving and then the @) indicator light in the in-
strument cluster also starts to blink for about
one minute and then stays on permanently, there
is a system malfunction. Try to store the correct
tire pressures > page 258. If the indicator light
does turn off or turns on again after a short peri-
od of time, drive to an authorized Audi dealer or
authorized Audi Service Facility immediately to
have the malfunction corrected.

ZA WARNING
— If the tire pressure indicator appears in the
display, reduce your speed immediately and
avoid any hard steering or braking maneu-
vers. Stop as soon as possible and check the
tires and their pressure.

257

The tire pressure or temperature is not dis-
played while the vehicle is stationary and in
adaptation mode. Dashes --.-- are shown in
place of the pressure and temperature.
OW iw este ort
Applies to: vehicles with tire pressure monitoring system
If the @ indicator light turns on, the pressure in
at least one tire is too low or new sensors were
not adapted:
@ indicator lights turns on after turning the
ignition on
The tire pressure is too low compared to the
specified pressure.
> Check and store the tire pressure(s) the next
time it is possible > page 260.
@ indicator light turns on while driving
Wheels with new sensors were not adapted or
the tire pressure has reached a critical level com-
pared to the specified pressure.
> Avoid unnecessary steering and braking maneu-
vers.
> Adapt your driving style to the situation.
>» Stop as soon as possible and check the tire(s).
> If it is possible to continue driving, see an au-
thorized Audi dealer or authorized Audi Service
Facility immediately and have your tire(s) re-
paired or replaced.

ZA WARNING
Read and follow the important information
and notes > page 259.
Storing new tire pressures
Applies to: vehicles with tire pressure monitoring system

The tire pressure specifications must be stored
correctly for the tire pressure monitoring system
to function reliably.
It is always necessary to store the tire pressures
when the tire pressures are modified, for exam-
ple due to a change in load or when new sensors
are installed.
260
> Before storing the tire pressures, make sure the
tire pressures of all four tires meet the speci-
fied values and are adapted to the load
=> page 250, fig. 184. Only correct and store
the pressure in tires whose temperature is ap-
proximately the same as the ambient tempera-
ture. If the temperature of the tire is higher
than the ambient air temperature, the tire
pressure must be increased approximately
3.0 PSI (0.2 bar) above the value on the sticker.
>» Switch the ignition on.
> Select in the Infotainment system: [MENU] but-
ton > Service & checks > Tire pressure monitor-
ing > Store tire pressure > Yes, store now. Af-
ter storing the tire pressures, the tire pressure
monitoring system measures the current pres-
sures while driving and stores them as the new
specified pressures.
> If the changed tire pressures are not displayed
in the Infotainment system, drive the vehicle
for approximately 10 minutes so that the sen-
sor signal from the wheels is received again.


During this adaptation phase, --.-- is displayed
for the pressure and temperature and the tire
pressure monitoring system is only partially
available. It only provides a warning if one or
more tire pressures is below the minimum per-
mitted specified pressure.
If the @ indicator light turns on and the mes-
sage Tire pressure: wheel change detected.
Please check all tires and store pressures in
MMT also appears, the system has detected that
the position of the sensors has changed because
of a tire rotation, or that new sensors were instal-
led. Store the new tire pressures.

ZA WARNING
Read and follow the important information
and notes > page 259.
Malfunctions
Applies to: vehicles with tire pressure monitoring system

If the tire pressure monitoring system is not
available, the [iS indicator light appears inthe >

8S8012721BA
Emergency assistance

If the vehicle should be towed with the axle
raised, then the ignition must be switched off to
reduce the risk of damage to the drivetrain.
Tow bar and towing cable
The vehicle can be towed with a tow bar or tow-
ing cable. Both drivers should be familiar with
the special considerations when towing, especial-
ly when using a towing cable.
Always make sure the traction force does not ex-
ceed the permitted level and there are no shock
loading conditions. There is always the risk of the
coupling becoming overloaded when driving off-
road.
For the most safety and security, drive with a tow
bar. You should use a towing cable only if a tow
bar is not available. Use a towing cable made of
synthetic elastic cable similar elastic material.

ZA\ WARNING
— Towing highly increases the risk of an acci-
dent, for example from colliding with the
towing vehicle.
— To reduce the risk of an accident, do not al-
low anyone to remain inside the vehicle
when it is being transported by a tow truck
or a special transporter.

@) Note
— If normal towing is not possible, for exam-
ple if the transmission is faulty or if the
towing distance is greater than 30 miles
(50 km), then transport the vehicle on a
special carrier.
— If the vehicle is towed by a tow truck at the
axle that is not permitted, this can cause se-
vere damage to the transmission.
— The vehicle must not be tow started for
technical reasons.
@) Tips
—If there is a power failure, the selector lever
will not move out of the "P" position. The
parking lock must be released using the

D_ Requirement: the vehicle battery must have a sufficient
charge level.
emergency release before towing the vehi-
cle > page 68.
— Follow the local legal regulations for tow-
ing.
Read and follow the important information under
=> page 274.
Preparations
> Only secure the towing cable or tow bar at the
designated towing loops > page 276,
=> page 276.
> Make sure the towing cable is not twisted. Oth-
erwise it could disconnect from the towing loop
while towing.
» Switch the emergency flashers on in both vehi-
cles > page 40. However, do not do this if it
prohibited by law.
Towing vehicle (front)
> Only start to drive when the towing cable is
taut.
> Be especially careful when accelerating.
> Avoid sudden braking or driving maneuvers.
Vehicle being towed (rear)
» Make sure the ignition is switched on so that
the steering wheel is not locked and so that you
can use the turn signals, the horn, and the
windshield wipers if needed > A\.
> The brake booster only works when the engine
is running. Power steering only works when the
ignition is switched on and the vehicle is roll-
ing )). If the brake booster and power steering
are not functioning, you must press the brake
pedal much harder and use more force to steer.
> Release the parking brake > page 59.
> Select the "N" selector lever position.
> Make sure the towing cable is always taut.
275
>

Fuses and bulbs

Interior fuse assignment

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1F52) FOL
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B8V-0217

No. | Equipment

F20 | Power lumbar support adjustment

Front passenger's side neck heating (Road-
F22
ster)
Right vehicle electrical system control
F24
module

F25 | Driver side door

F26 | Seat heating

Vehicle electrical system control module
Fae (terminal 30)

F28 | AMI High media port

F29 | Vehicle electrical system control module

F32 | Driver assistance systems

F33 | Airbag

Sockets, interior sound, tail light switch,
F34 | temperature sensor, oil level sensor, neck
heating, garage door opener


Fig. 202 Vehicle interior: fuse assignment

No. Equipment
Diagnosis, headlight range control, air
quality sensor, automatic dimming rear-
view mirror, center instrument panel
switch module
F35

F4 Central computer processor (MIB-2) F36 | Right cornering light / right LED headlight

FS Gateway (diagnostics) F37 | Left cornering light / left LED headlight

Fo Selector lever (automatic transmission)

F7
Climate control system controls, rear win-
dow defogger, tire pressure monitoring
Engine control module, ESC control mod-
F38
ule

F39 | Front passenger side door

F8
Switch for the electromechanical parking
brake, light switch, rain/light sensor, inte-
rior lighting, diagnostic connector, roof
electronics F40
| Cigarette lighter, sockets

F41 | Fuel tank diagnosis

F42 | Central locking area


FQ Steering column switch module
F44 | All wheel drive clutch control module


F10 Vehicle positioning
F45 | Power adjustable driver's side seat


Fll
All wheel drive clutch, left vehicle electri-
cal system control module
F46 | Driver's side neck heating (Roadster)

F49 | Engine start, clutch sensor


F12 Infotainment components
F52 | Control module for suspension control


F1l4 Climate control system blower fan
F53 | Rear window defogger


Fis Electronic steering column lock

F16
Infotainment system components, safety
belt microphone

F17 Instrument cluster

F18 Rearview camera

F19

Convenience access control module

278
The power seats* are protected via circuit break-
ers that automatically switch on after a few sec-
onds after the overload has been reduced.

8S58012721BA
Index

A
A/C (climate control system) .............. 53
ACCESSOFIES . 6... ee eee 48, 282
Active lane assist... . owes. ss sesmen «oes ee ave 72
Activating vibration warning............. 74
Adjusting steering time................. 74
Cleaning the camera area.............. 263
Indicator light........... 0.00 eee ee eee 73
MO@SSAQGS wees 2 2 wars 5 ¥ sees & ¥ BOS & Eo 73
Switching on/off. « ccsiss «season o 6 wasn e 6 enaew 73
Adaptive UIght seiics 6 eva oo nears os was ¥ wee 78
Adaptive light (indicator light)............ 20
Adjusting the additional display........... 14
Adjusting the air distribution. ............ 53
Adjusting the center console lighting....... 41
Adjusting the sound..............-..00- 175
Adjusting the temperature............... 53
Adjusting the vents............. 0. eee ee 54
Advanced Airbag System
Children... 0.2... eee eee ee 212
GOMPONENUS’. ¢ wees » o eae 4 e eee a vee 196
Frontsairbagse. « ser + 2 ccesn vous eo recon x 194
How the components work together... .. 197
UEDA Gin 1 « sunsce « o vsiscete 0 0 siete ao anmene © exettome 189
Indicator light...........-...0--00 000: 18
Airbag system... 2... eee eee 208
Advanced Airbag System............... 193
CaRC bcs ow averiue 6 ¥ wxicend wo tandeDe Bo ewexare wa aie 203
Child restraints..................000. 212
Components (front airbags)............ 196
Danger of fitting a child safety seat on the
front passenger seat..............00.. 190
Disposal zee: ¢ ¢ ees 2 x seen ¢ » eews 2 2 ees 203
Frontiairbagss. « wee oo wae 6 wamen 6 3 saxon 193
How do the front airbags work?......... 198
How many airbags does my vehicle have?. 196
Important information................ 189
Important safety instructions on the knee
airbagisySteM« « aces s ¢ eaiae & x eae 5 x Bee 206
Kneeiairbagsias = 2 saw 2s cin sue es wo 204
MON
ILOFING weenie 5 ceerese a 6 sonnets a 8 ene © 0! oe 200
PASSENGER AIR BAG light............- 200
Repairs’: = seses + & seine & eeoreys « ¥ caves vo Hare 203
Safety instructions................00- 202
Side airbags .......... 00. sce e eee 206
Warning/Indicator lights.............. 200
When must the system be inspected?.... 200
Alarm system

refer to Anti-theft alarm system.......... 27
Alignment pin (tire change) .............. 268
All-weather lights.................00000. 38
AlUSeaSON tiN@Sbercis ss sce ee ers oo mene ve 254
All wheelidrive wes. 2 ose0 22 cee oe even so 89
Alternative routes........... 0... e eee 139
Ambient lighting'ss « esex + eee 3 s eames so oe 40
AMI
refer to Audi music interface....... 158,159
Android Auto
refer to Audi smartphone interface...... 169
Announcements (settings)
refer to Voice guidance..............-. 139
Anti-freeze
Windshield washer system............. 238
Anti-lock braking system (ABS) ............ 86
Anti-Slip Regulation.................0005 86
Anti-theft alarm system .............0000- 27
Anti-theft wheel bolts..............564. 271
Apple CarPlay
refer to Audi smartphone interface...... 169
ARIINCSE:. cxsusne » 5 swsuins 9 0 snamens oo saree % ¥ omeeete @ » 47
ASAE AY": & esware © & enmee @ a eaves ao esecuae a @ eoasare 48
Aspect ratio (Vid@0) wisi si ieee s aaa see 163
ASR
refer to Anti-Slip Regulation............. 86
Audi connect
refer toconnect....... 0.0 e eee eee eee 125
Audi connect Infotainment
Personal hotspot...............000055 126
Services:overview o.. 6 ci sb ee es ees 127
Audi magnetic ride
refer to Suspension control.............. 78
Audi music interface..............0000- 158
Audi music stream
refer to Wi-Fi... 0.2... cee eee eee eee 156
AUdIO FILS resis «6 arene xe cancers xo wrecene ao eenane & 160
Audio player
Bluetooth audio player................ 155
Wi-Fi audio players. « s was ss sees se ees 156
Audio track. ...... cece eee eee
Audi phone box
Audi smartphone interface.......... 169, 173
Audi virtual cockpit
refer to Instrument cluster.............. 10
287