2019 AUDI TT ROADSTER ABS

Airbag system


the vehicle battery with a pyrotechnic circuit
interrupter.
— Work on the pyrotechnic circuit interrupter
must only be performed by a qualified
technicians who have the experience, in-
formation and special tools necessary to
perform the work safely.
— If the vehicle or the circuit interrupter is
scrapped, all applicable safety precautions

must be followed.
Other things that can affect Advanced
Airbag performance
Changing the vehicle's suspension system can
change the way that the Advanced Airbag System
performs ina crash. For example, using tire-rim
combinations not approved by Audi, lowering the
vehicle, changing the stiffness of the suspension,
including the springs, suspension struts, shock
absorbers etc. can change the forces that are
measured by the airbag sensors and sent to the
electronic control unit. Some suspension changes
can, for example, increase the force levels meas-
ured by the sensors and make the airbag system
deploy in crashes in which it would not deploy if
the changes had not been made. Other kinds of
changes may reduce the force levels measured by
the sensors and prevent the airbag from deploy-
ing when it should.

Z\ WARNING
Changing the vehicle's suspension including
use of unapproved tire-rim combinations can
change Advanced Airbag performance and in-
crease the risk of serious personal injury ina
crash.
— Never install suspension components that
do not have the same performance charac-
teristics as the components originally instal-
led on your vehicle.
— Never use tire-rim combinations that have
not been approved by Audi.

204

Knee airbags
Pye al) CooL Aide}
The knee airbag system can provide supplemen-
tal protection to properly restrained front seat
occupants.
2 8
2
z 6

Fig. 159 Driver's knee airbag
The driver knee airbag is in the instrument panel
underneath the steering wheel > fig. 159, the
airbag for the passenger is at about the same
height in the instrument panel underneath the
glove compartment.
The knee airbag offers additional protection to
the driver's and passenger's knees and upper and
lower thigh areas and supplements the protec-
tion provided by the safety belts.
If the front airbags deploy, the knee airbags also
deploy in frontal collisions when the deployment
threshold stored in the control unit is met
= page 198, More important things to know
about front airbags.
In addition to their normal safety function, safe-
ty belts help keep the driver or front passenger in
position in a frontal collision so that the airbags
can provide supplemental protection.
The airbag system is not a substitute for your
safety belt. Rather, it is part of the overall occu-
pant restraint system in your vehicle. Always re-
member that the airbag system can only help to
protect you if you are wearing your safety belt
and wearing it properly. This is why you should al-
ways wear your safety belt, not just because the
law requires you to do so > page 182, General
notes.

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.

Wheels

while it is in use. It should be re-
placed with a regular tire as soon
as possible.
Applies to: vehicles with all wheel
drive: All four wheels must be
equipped with tires that are the
same brand and have the same
construction and tread pattern so
that the drive system is not dam-
aged by different wheel speeds.
For this reason, in case of emer-
gency, only use a spare tire* that
is the same circumference as the
regular tires.

Z\, WARNING
—Only use tire/rim combina-
tions and suitable wheel bolts
that have been approved by
Audi. Otherwise, damage to
the vehicle and an accident
could result.
—For technical reasons, it is not
possible to use tires from oth-
er vehicles. In some cases, you
cannot even use tires from the
same vehicle model.
—Make sure that the tires you
select have enough clearance
to the vehicle. Replacement
tires should not be chosen
simply based on the nominal
size, because tires with a dif-



248

ferent construction can differ
greatly even if they are the
same size. If there is not
enough clearance, the tires or
the vehicle can be damaged
and this can reduce driving
safety and increase the risk of
an accident.
—Only use tires that are more
than six years old when abso-
lutely necessary and drive
carefully when doing so.
—Do not use run-flat tires on
your vehicle. Using them when
not permitted can lead to ve-
hicle damage or accidents.
—If you install wheel covers on
the vehicle, make sure they al-
low enough air circulation to
cool the brake system. If they
do not, this could increase the
risk of an accident.

Tire wear and damage
B4H-0415

aa
Fig. 182 Tire profile: treadwear indica-
tor

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

8S58012721BA
Care and cleaning


Component Situation Solution

Plastic parts Deposits Damp cloth

Heavier deposits Mild soap solution ®), detergent-free plastic clean-
ing solution, if necessary


Displays/instru- | Deposits Soft cloth with LCD cleaner; dust deposits in the
ment cluster lower area of the instrument cluster can be re-
moved using a soft brush.
Controls Deposits Soft brush, then a soft cloth with a mild soap solu-
tion)
Safety belts Deposits Mild soap solution ®, allow to dry before letting
them retract
Textiles Deposits adhering to the Vacuum cleaner
artificial leather, | surface
Alcantara Absorbent cloth and mild soap solution® Water-based deposits such
as coffee, tea, blood, etc.

Oil-based deposits such as
oil, make-up, etc.
Apply a mild soap solution ®), blot away the dis-
solved oil or dye, treat afterward with water, if nec-
essary

Specific types of deposits
such as ink, nail polish, latex
paint, shoe polish, etc.
Special stain remover, blot with absorbent material,
treat afterward with mild soap solution, if necessa-
ry a)

Natural leather Fresh stains Cotton cloth with a mild soap solution®

Water-based deposits such
as coffee, tea, blood, etc.
Fresh stains: absorbent cloth
dried stains: stain remover suitable for leather

Oil-based deposits such as
oil, make-up, etc.
Fresh stains: absorbent cloth and stain remover
suitable for leather
dried stains: oil cleaning spray

Specific types of deposits
such as ink, nail polish, latex
paint, shoe polish, etc.
Spot remover suitable for leather


nents

Care Regularly apply conditioning cream that protects
from light and penetrates into the material. Use
special colored conditioning cream, if necessary.
Carbon compo- Deposits Clean the same way as plastic components


A WARNING

The windshield must not be treated with wa-
ter-repelling windshield coating agents. Un-
favorable conditions such as wetness, dark-
ness, or low sun can result in increased glare.
Wiper blade chatter is also possible.

a) Mild soap solution: maximum two tablespoons of neutral soap in 1 quart (1 liter) of water
(@) Note
— Headlights and tail lights
— Never clean headlights or tail lights with a
dry cloth or sponge.
— Do not use any cleaning products that con-
tain alcohol, because they could cause
cracks to form.
265

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

Index

Fueltank:capacity’. « csccex 2 mewn ee cme 285
Opening the fuel filler door............ 224
With reserve canister (emergency fueling) . 226
Fuses
ASSIQNIMENE. & cori: so comme 9 w soem © a sere 9 278
Replacing. ....... cece eee eee eee eee 277
G
GALA
refer to Speed dependent volume control. 175
Garage door opener... ...... cee eee ee eee 30
Gasoline... 2... eee eee 223
Additives... 2.0.0.2... 00. c cece eee 224
Gasoline: mixture wees s eiceas s wees os Howe 223
GAWR
refer to Gross Axle Weight Rating (GAWR) . 286
Global commands (voice recognition sys-
teM) 2. eee 105
Glossary of tire and loading terminology... 242
Glove compartment............ ee eee eee 49
G meter
refer to Sport displays.................. 15
Gross Axle Weight Rating (GAWR)........ 286
Gross Vehicle Weight Rating (GVWR)...... 286
GVWR
refer to Gross Vehicle Weight
Rating (GVWR) « scene < = eases 4 e Hams a eee 286
H
Handsfree... 1... eee eee eee
Headlight range control system
Headlight range control system (indicator
WGN) s sean ¢ s sews xs Hem ao Soe 2 2 Bae 2 a 20
Headlights .......... 00. cece 39
Cleaning’s < « ese =» gews ts ees e Sawn a ewe 263
Headlight range control system.......... 38
Washer system.......... 0.00 eee eee eee 42
Heated
EXteriGrMitrors: scm s : cum = + nome & : neues 41
Rear Wind OW 2s wes 5 wes 2 wenn ee omen 54
Seats... eee 54
Washer nozzles ......:ccseesecteeeeeee 42
Hex socket... 2.20... e eee eee eee 268
Hill descent control.................000. 65
Hill hold assist... 2.2.0.0... eee eee eee 61
also refer to Hill hold assist............. 61
292

Home address.............0000005 134, 138
HomeLink
refer to Garage door opener............. 30
FORM ac & csonene 2 6 sramne © wares oo cyaseas we © sirewere © 0 ae 6
THOESPOL 5 cxcwens w eeawens av rasenwe i & eeeoes © v anmueE 130
How many airbags does my vehicle have?.. 196
How safety belt pretensioners work....... 187
I
Ignition (indicator light)................- 18
Imbalance (wheels) ............000 eee ee 248
Immobilizer
refer to Electronic immobilizer........... 22
Important things to do before driving..... 177
Importing and exporting (contacts)....... 122
Improperly worn safety belts............ 187
Indicator lights............0.00020 22 eeee 7
‘Airbag SYSteM sau 2s eas so eee ae ween 200
PASSENGER AIR BAG ccc a x ces a x ewes » 200
INTANESEAatS s « cxcnscs ss asa oo come o wacioon oo 215
Input
Using the MME tOuUCR cies « « sos « 2 eon 3 os 94
Using the speller.......... 0.000.000 ee 98
Input level (media)................200- 163
Inspection interval..............0e eee ee 239
Installing child safety seats
Safety belts..................000000- 219
Instrument cluster.................0005- 10
M@SSAQES « sees is eee8 bv ose ey Pe es Hee 16
Operating’ « = esses 2 mason «2 en 6 eae a Os 12
Service interval display................ 239
Switching
tabs»... e008. cees sewn e cee 12
Instruments
Adjusting the lighting.................. 41
Interior lighting’: < 2 exe « = sees © s ness ¢ x seem 40
Intermittent (windshield wipers).......... 42
Internet
refer to CONhect. <2 zes5 ss wows = v Sewn a ee 125
Intertiet radio + seme: x s ween: 2 oem es eee ge 157
iPod
refer to Audi music interface....... 158,159
ITUNES tagGiNg « «ces ss peas ss pews vo ews 147
J
Joystick function (MMI) « » sms zs meen 2 yee 97