2019 AUDI TT ROADSTER ABS

Intelligent Technology

Intelligent Technology
Electronic stabilization
control (ESC)
Electronic Stabilization Control (ESC) supports
driver safety. It reduces the risk of slipping and
improves driving stability. ESC detects critical sit-
uations such as the vehicle oversteering and un-
dersteering or the wheels are spinning. The
brakes are applied or the engine torque is re-
duced in order to stabilize the vehicle. When the
ESC engages, the B indicator light blinks in the
instrument cluster.
The following systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking when brak-
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is acting to
stabilize the vehicle.
Brake assist system
The brake assist system can decrease braking dis-
tance. It increases braking power when the driver
presses the brake pedal quickly in emergency sit-
uations. You must press and hold the brake pedal
until the dangerous situation is over.
Anti-Slip Regulation (ASR)
ASR reduces drive power when the drive wheels
begin spinning and adapts the power to the road
conditions. This makes it easier to start, acceler-
ate and drive up hills.
Electronic Differential Lock (EDL)
The EDL applies the brakes to wheels that are
slipping and transfers the drive power to the oth-
er wheels. This function is not available at higher
speeds.
In extreme cases, EDL automatically switches off
to keep the brake on the braked wheel from over-
heating. The vehicle is still functioning correctly.
86
EDL will switch on again automatically when con-
ditions have returned to normal.
Power steering
The ESC can also support vehicle stability
through steering.
Selective wheel torque control
Selective wheel torque control is used when driv-
ing on curves. Braking is targeted toward the
wheels on the inside of the curve as needed. This
allows more precise driving in curves.
Automatic post-collision braking system
The automatic post-collision braking system can
help to reduce the risk of sliding and of addition-
al collisions after an accident. If the airbag con-
trol module detects a collision above a certain ve-
hicle speed, the vehicle is braked by the ESC.
The vehicle does not brake automatically if one of
the following occurs:
— The driver presses the accelerator pedal
—The braking force generated by the pressed
brake pedal is greater than the braking force
that would be initiated by the system
— The ESC, the brake system, or the vehicle elec-
trical system is not functioning

ZA WARNING
— The ESC and its integrated systems cannot
overcome the limits imposed by natural
physical laws. This is especially important on
slippery or wet roads. If the systems begin
acting to stabilize your vehicle, you should
immediately alter your speed to match the
road and traffic conditions. Do not let the in-
creased safety provided tempt you into tak-
ing risks. This could increase your risk of a
collision.
— Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when driv-
ing too close to objects ahead. The ESC and
its integrated systems cannot always pre-
vent collisions - there is still a risk of acci-
dents!

8S58012721BA
Intelligent Technology


— Accelerate carefully when driving on condition. Different tire sizes can lead toa
smooth, slippery surfaces such as ice and reduction in engine power.
snow. The drive wheels can spin even when — You may hear noises when the systems de-
these control systems are installed and this scribed are working.
can affect driving stability and increase the
risk of a collision.


G@) Tips
— The ABS and ASR only function correctly
when all four wheels have a similar wear
Sic melal
The ESC is automatically switched on when the ignition is switched on.

function is limited or switched off. The amount of
stabilization control will differ depending on the
level.
eS
gS s
= o
The following examples are unusual situations
where it may make sense to switch sport mode
on in order to allow the wheels to spin:
— Rocking the vehicle to free it when it is stuck
— Driving in deep snow or on loose ground
— Driving with snow chains


Fig. 91 Upper center console, 52 OFF button
The ESC is designed to function in levels. Depend-
ing on the level selected, the ESC stabilization

Sport mode on ESC/ASR off Sport mode off or ESC/ASR
on
Behavior The ESC and ASR stabiliza- | The stabilization function is | The full stabilization func-
tion functions are limited not available > A\. ESC and _|tion of the ESC and ASR is




>A. ASR are switched off. available again.
Operation Press the 2 OFF] button Press and hold the |2 OFF Press the [2 OFF] button
briefly. button longer than 3 sec- again.
onds.

Indicator Biturns on. Band aa turn on. Biturns off or EJ and
lights aa turn off.
Messages Stabilization control (ESC): | Stabilization control (ESC): | Stabilization control
sport. Warning! Limited off. Warning! Restricted (ESC): on
stability stability




A WARNING —The stabilization function is limited when
sport mode is switched on. The driving
wheels could spin and the vehicle could
swerve, especially on slick or slippery road
surfaces.
You
should only switch sport mode on or
switch ESC/ASR off if your driving abilities and
road conditions permit.






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Intelligent Technology


— There is no vehicle stabilization when
ESC/ASR are switched off.

@) Tips
— When the cruise control system* is switched
on, ESC/ASR cannot be switched off or sport
mode cannot be switched on.
— Malfunctions in the rear spoiler or the Audi
magnetic ride may make it impossible to
switch the ESC/ASR off or to switch sport
mode on.
Brakes
You can apply the vehicle's brakes using the brake
pedal.
Operating noise
Noises may occur when braking depending on the
speed, braking force, and outside conditions such
as temperature and humidity.
Braking effect
The response time from the brakes depends on
the weather and environmental conditions. To
ensure the optimum braking effect, the brake
system is cleaned at regular intervals. This is
done by applying the brake pads to the brake ro-
tors for a short period of time when driving at
high speeds when the windshield wipers are
switched on.
If the brake system becomes damp, for example
after driving in heavy rain, the braking effect may
be delayed. Other factors that could temporarily
increase the response time of the brakes include:
— Wet conditions
— Low temperatures, ice, and snow
— Roads covered in salt
— Dirty brake pads
Corrosion
Corrosion may form on the brake rotors if there is
no heavy braking, if the vehicle is not driven for
long periods of time, or if the vehicle is not driv-
en
frequently or for long distances. In this case,
braking heavily several times while driving at
high speeds can clean the brake rotors > A\.
838
Brake pads
New brake pads do not achieve their full braking
effect during the first 250 miles (400 km). They
must be “broken in” first. However, you can com-
pensate for the slightly reduced braking force by
pressing firmly on the brake pedal. Avoid heavy
braking during the break-in period.
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions.
Brake pad wear increases when driving frequently
in the city or short distances or when using a very
sporty driving style.
Ceramic brakes
Applies to: vehicles with ceramic brakes
Ceramic brakes provide excellent deceleration
rates.
The break-in period for new ceramic brakes may
be significantly longer than for standard brake
rotors. Due to the properties of the material,
they may cause noises at lower speeds. Ceramic
brakes also absorb more moisture in wet condi-
tions. Therefore, there will temporarily be less
braking force than when the brakes are dry. You
can compensate for this by pressing the brake
pedal harder.

A WARNING
— Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en-
danger other road users and increase the
risk of an accident.
— Due to the risk of injury, only have an au-
thorized Audi dealer or authorized Audi
Service Facility work on the brake system.
Incorrect repairs could impair the function.
— Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
— Depending on vehicle equipment, the brake
pedal may move downward automatically
during autonomous braking maneuvers. To
reduce the risk of injury, do not place your
foot under the brake pedal.

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Media

ONT ale)
Applies to: vehicles with Audi music interface

Connect your mobile devices to the Audi music
interface in order to operate them through the
MMI and charge the battery.

put © on the Audi music interface and then to
the mobile device @) (such as an MP3 player or
smartphone).
— Disconnecting a mobile device from the AUX
input: remove the cable G) > fig. 136 from the
Audi music interface.
— Operation: select and confirm the External au-
dio player source G) > page 160, fig. 137. The
media are started and operated through the
mobile device @) fig. 136.



Fig. 136 Storage compartment in the center console: con-
necting mobile devices
USB Input
— Connecting a mobile device using a USB
adapter: connect the applicable USB adapter (2)
=> fig. 136 to the port on the Audi music inter-
face @) and then connect the adapter to the
mobile device @ (such as an iPod).
— Charging a mobile device using a USB adapter:
when you connect a mobile device to the Audi
music interface @) using the applicable USB
adapter @) > fig. 136, the battery will auto-
matically charge.
— Disconnecting a mobile device from the Audi
music interface: remove the USB adapter (2)
> fig. 136 from the Audi music interface @)
> fig. 136.
— Disconnecting mobile devices with an Apple
Dock connector: remove the Apple Dock con-
nector from the Apple device with the release
tabs pressed in @) > page 158, fig. 135.
The media are started and operated through the
mobile device or the MMI, depending on the de-
vice being used > page 160.
Connecting multiple mobile devices: if a mobile
device (such as a smartphone) is connected at the
respective USB port on the Audi music interface,
then all devices can be used as a playback source.
AUX Input
— Connecting a mobile device to the AUX input:
connect the cable (G) > fig. 136 to the AUX in-
Z\ WARNING
Driving requires your complete and undivided
attention. As the driver, you have complete re-
sponsibility for safety in traffic. Never operate
mobile devices while driving, because this in-
creases the risk of an accident.
G) Note
— Remove the connector from the Audi music
interface carefully so it is not damaged.

— Use a USB extension cable to connect devi-
ces that have an integrated USB connector
(such as a USB stick) to prevent damage to
your USB device and the Audi music inter-
face.
— Extremely high or low temperatures that
can occur inside vehicles can damage mobile
devices and/or impair their performance.
Never leave mobile devices in the vehicle in
extremely high or low temperatures.
@ Tips
—When you switch the ignition off, the USB
ports are still supplied with power until the
energy management intervenes.
— Do not use an additional adapter or USB ex-
tension cable to connect mobile devices to
the Audi music interface that already have a
cable or that must be connected with a USB
adapter (> page 158). Using an additional
adapter or US extension cable may impair
functionality.
— You can purchase the AUX connector cable
from an authorized Audi dealer or at spe-
cialty stores.
159

8S58012721BA
Safety belts

Why safety belts?
Frontal collisions and the law of physics
Frontal crashes create very strong forces for peo-
ple riding in vehicles.

BFV-0184





BFV-0185



(2,000 lbs, or 1,000 kg) or more. At higher
speeds, these forces are even greater.
People who do not use safety belts are also not
attached to their vehicle. In a frontal collision
they will also keep moving forward at the speed
their vehicle was travelling just before the crash.
Of course, the laws of physics don't just apply to
frontal collisions, they determine what happens
in all kinds of accidents and collisions.
What happens to occupants not wearing
liam llieya
In crashes unbelted occupants cannot stop
themselves from flying forward and being in-
jured or killed. Always wear your safety belts!

Fig. 148 The vehicle crashes into the wall
The physical principles are simple. Both the vehi-
cle and the passengers possess energy which var-
ies with vehicle speed and body weight. Engi-
neers call this energy “kinetic energy.”
The higher the speed of the vehicle and the
greater the vehicle's weight, the more energy
that has to be “absorbed” in the crash.
Vehicle speed is the most significant factor. If the
speed doubles from 15 to 30 mph (25 to 50
km/h), the energy increases 4 times!
Because the passengers of this vehicle are not us-
ing
safety belts > fig. 147, they will keep moving
at the same speed the vehicle was moving just
before the crash, until something stops them -
here, the wall > fig. 148.
The same principles apply to people sitting in a
vehicle that is involved in a frontal collision. Even
at city speeds of 20 to 30 mph (30 to 50 km/h),
the forces acting on the body can reach one ton

Fig. 149 A driver not wearing a safety belt is violently
thrown forward
Unbelted occupants are not able to resist the tre-
mendous forces of impact by holding tight or
bracing themselves. Without the benefit of safe-
ty restraint systems, the unrestrained occupant
will slam violently into the steering wheel, in-
strument panel, windshield, or whatever else is
in the way > fig. 149. This impact with the vehi-
cle interior has all the energy they had just before
the crash.
Never rely on airbags alone for protection. Even
when they deploy, airbags provide only additional
protection. Airbags are not supposed to deploy in
all kinds of accidents. Although your Audi is
equipped with airbags, all vehicle occupants, in-
cluding the driver, must wear safety belts cor-
rectly in order to minimize the risk of severe in-
jury or death in a crash.
Remember too, that airbags will deploy only once
and that your safety belts are always there to
183

>

Safety belts

offer protection in those accidents in which air-
bags are not supposed to deploy or when they
have already deployed. Unbelted occupants can
also be thrown out of the vehicle where even
more severe or fatal injuries can occur.
Safety belts protect
People think it's possible to use the hands to
brace the body ina minor collision. It's simply
not true!

JS) se
Fig. 150 Driver is correctly restrained in a sudden braking
maneuver.
Safety belts used properly can make a big differ-
ence. Safety belts help to keep passengers in
their seats, gradually reduce energy levels ap-
plied to the body in an accident, and help prevent
the uncontrolled movement that can cause seri-
ous injuries. In addition, safety belts reduce the
danger of being thrown out of the vehicle.
Safety belts attach passengers to the car and give
them the benefit of being slowed down more
gently or “softly” through the “give” in the safety
belts, crush zones and other safety features engi-
neered into today's vehicles. By “absorbing” the
kinetic energy over a Longer period of time, the
safety belts make the forces on the body more
“tolerable” and less likely to cause injury.
Although these examples are based on a frontal
collision, safety belts can also substantially re-
duce the risk of injury in other kinds of crashes.
So, whether you're on a long trip or just going to
the corner store, always buckle up and make sure
others do, too. Accident statistics show that vehi-
cle occupants properly wearing safety belts have
a lower risk of being injured and a much better
chance of surviving an accident. Properly using
184

safety belts also greatly increases the ability of
the supplemental airbags to do their job in a col-
lision. For this reason, wearing a safety belt is le-
gally required in most countries including much
of the United States and Canada.
Although your Audi is equipped with airbags, you
still have to wear the safety belts provided. Front
airbags, for example, are activated only in some
frontal collisions. The front airbags are not acti-
vated in all frontal collisions, in side and rear col-
lisions, in rollovers or in cases where there is not
enough deceleration through impact to the front
of the vehicle. The same goes for the other airbag
systems in your Audi. So, always wear your safety
belt and make sure everybody in your vehicle is
properly restrained!
ee Celia Llaly
Praha)
Safety belts must always be correctly positioned
across the strongest bones of your body.
> Always wear safety belts as illustrated and de-
scribed in this chapter.
> Make sure that your safety belts are always
ready for use and are not damaged.

ZA WARNING
Not wearing safety belts or wearing them im-
properly increases the risk of serious personal
injury and death. Safety belts can work only
when used correctly.
— Always fasten your safety belts correctly be-
fore driving off and make sure all passen-
gers are correctly restrained.
— For maximum protection, safety belts must
always be positioned properly on the body.
— Never strap more than one person, including
small children, into any belt.
— Never place a safety belt over a child sitting
on your lap.
— Always keep feet in the footwell in front of
the seat while the vehicle is being driven.
— Never let any person ride with their feet on
the instrument panel or sticking out the
window or on the seat.

Airbag system


these areas and you or any other person in
the vehicle.
— Never attach objects to the windshield
above the passenger front airbag, such as
accessory GPS navigation units or music
players. Such objects could cause serious in-
jury in a collision, especially when the air-
bags inflate.

ZA\ WARNING
A person on the front passenger seat, espe-
cially infants and small children, will receive
serious injuries and can even be killed by be-
ing too close to the airbag when it inflates.
— Although the Advanced Airbag System in
your vehicle is designed to turn off the front
passenger airbag if an infant or a small child
is on the front passenger seat, nobody can
absolutely guarantee that deployment un-
der these special conditions is impossible in
all conceivable situations that may happen
during the useful life of your vehicle.
— The Advanced Airbag System can deploy in
accordance with the “Low risk” option under
the U.S. Federal Standard if a child that is
heavier than the typical one-year old child is
on the front passenger seat and the other
conditions for airbag deployment are met.
— For its own safety, a child should always ride

properly restrained for its age and size.
Advanced front airbag system
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 front Advanced Airbag System supplements
the safety belts to provide additional protection
for the driver's and front passenger's heads and
upper bodies in frontal crashes. The airbags in-
flate only in frontal impacts when the vehicle de-
celeration is high enough.
The front Advanced Airbag System for the front
seat occupants is not a substitute for your safety
194
belts. Rather, it is part of the overall occupant re-
straint system in your vehicle. Always remember
that the airbag system can only help to protect
you, if you are sitting upright, wearing your safe-
ty belt and wearing it properly. This is why you
and
your passengers must always be properly re-
strained, not just because the law requires you to
be.
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 very small adults on the driver
side. The low risk deployment criteria are intend-
ed to help reduce the risk of injury through inter-
action with the front 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 Standard, to turn off the front airbag
for infants 12 months old and younger who are
restrained on the front passenger seat in child re-
straints that are listed in the Standard
= page 212, Child restraints and Advanced front
airbag system.
“Suppression” requires the front airbag on the
passenger side to be turned off if:
—a child up to about one year of age is restrained
on the front passenger seat in one of the rear-
facing or forward-facing infant restraints listed
in Federal Motor Vehicle Safety Standard 208
with which the Advanced Airbag System in your
vehicle was certified. For a listing of the child
restraints that were used to certify your vehi-
cle's compliance with the US Safety Standard
=>page 212,
— When a person is detected on the front passen-
ger seat that has an electrical capacitance that
is more than the total electrical capacitance of
a child that is about 1 year old restrained in one
of the rear-facing or forward-facing infant re-
straints (listed in Federal Motor Vehicle Safety
Standard 208 with which the Advanced Airbag
System in your vehicle was certified), the front
airbag on the passenger side may or may not
deploy.

8S8012721BA
Airbag system

The PASSENGER AIR BAG OFF %; light comes on
when the electronic control unit detects a total
electrical capacitance on the front passenger seat
that requires the front airbag to be turned off. If
the PASSENGER AIR BAG OFF 3%; light does not
come on, the front airbag on the passenger side
has not been turned off by the control unit and
can deploy if the control unit senses an impact
that meets the conditions stored in its memory.
If the total electrical capacitance registered on
the front passenger seat is more than that of a
typical 1 year-old, but less than the weight of a
small adult, the front airbag on the passenger
side may deploy (the PASSENGER AIR BAG OFF
¥; light does not come on).
For example, the airbag may deploy if:
—asmall child that is heavier than a typical 1
year-old child is on the front passenger seat (re-
gardless of whether the child is in one of the
child seats listed > page 212),
—a child who has outgrown child restraints is on
the front passenger seat.
If the front passenger airbag is turned off, the
PASSENGER AIR BAG OFF %; light in the head-
liner will come on and stay on.
If the front passenger airbag deploys, the Federal
Standard requires the airbag to meet the “low
risk” deployment criteria to help reduce the risk
of injury through interaction with the airbag.
“Low risk” deployment occurs in those crashes
that take place at lower decelerations as defined
in the electronic control unit > page 200.
Always remember: Please be sure to read the im-
portant information in the sections that follow
and be sure to heed all of the WARNINGS.

airbag or too close to it when it inflates -
even with an Advanced Airbag > page 189.

A WARNING
A child in a rearward-facing child seat instal-
led on the front passenger seat will be seri-
ously injured and can be killed if the front air-
bag inflates - even with an Advanced Airbag
System.
— Although the Advanced Airbag System in
your vehicle is designed to turn off the front
airbag when a rearward-facing child re-
straint has been installed on the front pas-
senger seat, nobody can absolutely guaran-
tee that deployment is impossible in all con-
ceivable situations that may happen during
the useful life of your vehicle.
— The inflating airbag will hit the child seat or
infant carrier with great force and will
smash the child seat and child against the
backrest, center armrest, door, or roof.
— Ifyou 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 have the airbag system
inspected by your Audi dealer.


ZA WARNING
To reduce the risk of injury when an airbag in-
flates, always wear safety belts properly.
— If you are unrestrained, leaning forward, sit-
ting sideways or out of position in any way,
your risk of injury is much higher.
— You will also receive serious injuries and
could even be killed if you are up against the

ZA WARNING
If, in exceptional circumstances, you must in-
stall a forward-facing child restraint on the
front passenger's seat:
— Always 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.
— 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 adjust-
ment range and move it back to the rear-
most position in the seat's fore and aft ad-
justment range, as far away from the airbag
as possible, before installing the forward-
facing child restraint.

195