2019 AUDI TT ROADSTER brake light

8S58012721BA
Driving


ZA WARNING
— The parking lock may only be released using
the emergency release if the parking brake
is set. If it is not working, secure the vehicle
from rolling using the brake pedal or other
suitable means, such as blocking a front and
a rear wheel. An unsecured vehicle may roll
away, which increases the risk of an acci-
dent.
— Only activate the emergency release while
ona level surface or a slight slope.
—To reduce the risk of an accident, you must
not drive when the emergency release is ac-

tivated.

Trailer towing
General information
Your Audi is not designed to tow a trailer.
Towing a trailer with your Audi is not recom-
mended and can cause damage to the car. Dam-
aged caused by towing a trailer is not covered by
your Audi Warranty.
69

Assist systems

Assist systems
Speed warning system
Applies to: vehicles with speed warning system
The speed warning system helps you to stay be-
low a specified maximum speed that can be set,
changed or deleted in the Infotainment system.
The speed warning system warns you if you are
exceeding the maximum speed that you have set.
A warning tone will sound as soon as your speed
exceeds the stored value slightly. The oe) in-
dicator light and a message will appear in the in-
strument cluster display at the same time. The
owe indicator light and the message turn off if
the speed falls back below the stored maximum
speed.
Setting a threshold is recommended if you would
like to be reminded when you reach a certain
maximum speed. Situations where you may want
to do so include driving in a country with a gener-
al speed limit or if there is a specified maximum
speed for winter tires.
Setting the warning threshold
> Select in the Infotainment system: MENU but-
ton > Vehicle > left control button > Driver as-
sistance > Speed warning > Manual.
G) Tips
Regardless of the speed warning system, you
should always monitor your speed using the
speedometer and make sure you are following
the legal speed limit.
Cruise control system
Applies to: vehicles with cruise control system
The cruise control system assists the driver in
maintaining a constant speed above approxi-
mately 15 mph (20 km/h). The system maintains
the desired speed by braking and accelerating.
70

Z\ WARNING
— Always pay attention to the traffic around
your vehicle when the cruise control system
is in operation. As the driver, you are always
responsible for controlling your vehicle
speed and the distance between your vehicle
and
other vehicles.
— For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads, and when road conditions are
poor (such as ice, fog, gravel, heavy rain,
and conditions that could lead to hydroplan-
ing), because this increases the risk of an ac-
cident.
— Switch the cruise control off temporarily
when driving in turning lanes, highway exits,
or in construction zones.
—To reduce the risk of an accident, you should
only resume the stored speed if it is suitable
for the current traffic conditions.
() Note
Before driving downhill a long distance on a
steep hill, decrease your speed and select a
lower gear. This makes use of the engine brak-
ing effect and reduces the load placed on the
brakes.
G) Tips
The brake lights turn on when the brakes are
applied automatically.
Switching the system on
Applies to: vehicles with cruise control system


@ g
©
f ©
Fig. 74 Lever: switching on the cruise control system

Requirement: switch the ignition on.

8S58012721BA
Assist systems

> To switch the system on, pull the lever toward
you to position @).
The Gig or (§] indicator light and the corre-
sponding message will appear in the instrument
cluster.

Z\ WARNING
If the brakes are malfunctioning (for example,
overheating) while the cruise control system

is switched on, it may shut off automatically.
Preselecting or activating a cruise control
ry ey-t-fe)
Applies to: vehicles with cruise control system

When the vehicle is stationary, you can preselect
the cruise control speed or activate the speed
while driving.
Requirement: the system must be switched on.
> To preselect a cruise control speed when the ve-
hicle is stationary, tap the lever toward @)/G)
=> page 70, fig. 74.
> To activate the cruise control speed, pull the
lever toward position @ while driving, or
> To set the current driving speed as the cruise
control speed, press the button () on the lever.
The active cruise control speed is indicated with
the ICRUISE| or BS indicator light in the instrument
cluster.
Changing the cruise control speed
Applies to: vehicles with cruise control system
> To increase or decrease the cruise control speed
in small increments, tap the lever up to the
first level toward @/@) > page 70, fig. 74.
> To increase or decrease the cruise control speed
in larger increments, tap the lever up to the
second level toward @)/G).
> To increase or decrease the cruise control speed
continuously, tap and hold the lever at the first
or second level toward (#)/G).
Overriding or deactivating the cruise
control speed
Applies to: vehicles with cruise control system
You can override or deactivate the cruise control
system. When you deactivate the system, your
cruise control speed will be stored and you can
resume that speed.
Requirement: the system must be switched on
and activated.
Overriding
> To temporarily override the cruise control
speed, press the accelerator pedal.
> Once you release the accelerator pedal, the sys-
tem will adjust back to the stored cruise control
speed.
If you override the cruise control system for a
long period of time, the cruise control system
will be deactivated. The system indicator light
will turn off and the cruise control speed will be
stored.
Deactivating
> To deactivate the cruise control speed, press
the lever toward (2) (not locked into place)
=> page 70, fig. 74.
> Press the brake pedal.

Z\ WARNING
Resting your foot on the accelerator pedal
could override the cruise control. This will pre-
vent braking interventions by the system.
Siem eel
Applies to: vehicles with cruise control system

When you switch the system off completely, the
cruise control speed will be deleted.
Requirement: the system must be switched on.
> To switch the system off, press the lever toward
@ (locked into place) > page 70, fig. 74, or
> Switch the ignition off.
71

Assist systems

Applies to: vehicles with cruise control system
ICRUISE| / §) Speed control system: currently un-
available. See owner's manual
If the indicator light turns on and this message
appears, the cruise control system has been deac-
tivated. There is a temporary malfunction, for ex-
ample the brakes are overheating. Switch the
cruise control system on again later.
Audi active lane assist
Applies to: vehicles with Audi active lane assist
Active lane assist detects lane marker lines with-
in the limits of the system using a camera in the
windshield. If you are approaching a detected
lane marker line and it appears likely that you
will leave the lane, the system will warn you with
corrective steering. You can override this steering
at any time. If you pass over a line, the steering
wheel will vibrate lightly. In order for this warn-
ing vibration to occur, it must first be switched
on in the Infotainment system. Active lane assist
is ready for operation when the lane marker line
is detected on at least one side of the vehicle.
The system is designed for driving on express-
ways and highways and so it only activates at
speeds above approximately 40 mph (65 km/h)
(depending on the market).
Applies to vehicles with side assist*: If you acti-
vate a turn signal when active lane assist is ready
and it classifies a lane change as critical because
of vehicles traveling alongside you or approach-
ing you, there will be noticeable corrective steer-
ing shortly before you leave the lane. This will at-
tempt to keep your vehicle in the lane.
Applies to vehicles without side assist*: When
the system is ready, it will not warn you if you ac-
tivate the turn signal before crossing the lane
marker line. In this case, it assumes that you are
changing lanes intentionally.

)) The corrective steering function is not available in all mar-
kets.
72


Z\ WARNING
— The system warns the driver that the vehicle
is leaving the lane using corrective steering.
The
driver is always responsible for keeping
the vehicle within the lane.
— The system can assist the driver in keeping
the vehicle in the lane, but it does not drive
by itself. Always keep your hands on the
steering wheel.
— Corrective steering may not occur in certain
situations, such as during heavy braking.
— There may be cases where the camera does
not recognize all lane marker lines. Correc-
tive steering can only take place on the side
of the vehicle where lane marker lines are
detected.
— Other road structures or objects could possi-
bly be identified unintentionally as lane
marker lines. As a result, corrective steering
may be unexpected or may not occur.
— The camera view can be restricted, for exam-
ple by vehicles driving ahead or by rain,
snow, heavy spray light shining into the
camera or by dirt on the window. This can
result in active lane assist not detecting the
lane marker lines or detecting them incor-
rectly.
— Incertain situations where visibility is low,
the vehicle may switch internally from “ear-
ly” to “late” steering correction )).
— Under certain conditions such as ruts in the
road, an inclined roadway or crosswinds, the
corrective steering alone may not be enough
to keep the vehicle in the middle of the lane.
— For safety reasons, active lane assist must
not be used when there are poor road and/or
weather conditions such as slippery roads,
fog, gravel, heavy rain, snow and the poten-
tial for hydroplaning. Using active lane as-
sist under these conditions may increase the
risk of a crash.

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!

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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Intelligent Technology

@) Note
— Never let the brakes “rub” by pressing the
pedal lightly when braking is not actually
necessary. This can cause the brakes to over-
heat and increases braking distance and
causes wear.
— Before driving on long stretches with steep
hills, reduce the vehicle speed and shift to a
lower gear to use the engine braking effect.
This reduces the load on the brakes. If you
need to brake additionally, brake in intervals
and not continuously.
@) Tips
— If you retrofit your vehicle with a front spoil-
er, wheel covers or similar items, make sure
that the air flow to the brakes is not ob-
structed. Otherwise the brake system can
overheat.
— Also refer to the information about brake
fluid > page 235.
Steering
Electromechanical steering supports the driver's
steering movements by electronically adapting
the power steering depending on the vehicle
speed. The settings depend on the selected Audi
drive select* mode.
a Steering: malfunction! Please stop vehicle
The power steering may have failed. Adapt your
driving style immediately to compensate for the
fact that it may be more difficult to turn the
steering wheel, and stop your vehicle in a safe lo-
cation as soon as possible. Do not continue driv-
ing. See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
a Steering: malfunction! You can continue
driving
There is a malfunction. Steering may be more dif-
ficult or more sensitive. Adapt your driving style.
Have the steering system checked immediately
by an authorized Audi dealer or authorized Audi
Service Facility. Please note that the red indicator
light may turn on after restarting the engine. Do
not continue driving if it does.
G@) Tips
If the 12 or al indicator light only stays on
for a short time, you may continue driving.
ALL wheel drive (quattro)
Applies to: vehicles with all wheel drive
In all wheel drive, all four wheels are powered.
General information
In all wheel drive, the driving power is divided be-
tween all four wheels. This happens automatical-
ly depending on your driving behavior as well as
the current road conditions. Also see > page 86,
Electronic stabilization control (ESC).
The all wheel drive concept is designed for high
engine power. Your vehicle is exceptionally pow-
erful and has excellent driving characteristics
both under normal driving conditions and on
snow and ice. Always read and follow safety pre-
cautions > A\.
Winter tires
By using all wheel drive, your vehicle has good
forward motion with standard tires in winter con-
ditions. However, in winter we recommend using
winter or all season tires on all four wheels, be-
cause this will improve the braking effect.
Snow chains
If there are snow chain laws, snow chains must
also be used on vehicles with all wheel drive
=> page 255, Snow chains.
Replacing tires
For vehicles with all wheel drive, only wheels with
the same rolling circumference should be used.
Avoid using tires with different tread depths
=> page 247, New tires or wheels.
89

8S58012721BA
Checking and Filling

Observe the safety precautions > page 227, Gen-
eral information.
Checking the engine coolant level
>» Park the vehicle on a level surface.
> Switch the ignition off.
> Read the coolant level on the coolant expansion
tank > page 230, fig. 174. The coolant level
must be between the markings @) 9 fig. 177
when the engine is cold. When the engine is
warm it can be slightly above the upper mark-
ing.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >@.
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
> Allow the engine to cool.
>» Place a large, thick towel on the coolant expan-
sion tank cover.
> Remove the cover (@) 9 fig. 177 carefully to the
left > AX.
> Add the correct mixture ratio of coolant
> page 234 up to the upper marking @)
> fig. 177.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Close the cap securely.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the engine
compartment with caution.
— When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away
from children. There is a risk of poisoning.


@) Note
Do not add coolant if the expansion tank is
empty. Air could enter the cooling system and
damage the engine. If this is the case, do not
continue driving. See an authorized Audi deal-
er or authorized Audi Service Facility for assis-
tance.
Brake fluid

BFV-0229)



Z\ WARNING
— The engine compartment in any vehicle can
be a dangerous area. Stop the engine and al-
low it to cool before working in the engine
compartment. Always follow the informa-
tion found in > page 227, General informa-
tion.
— Never open the hood if you can see or hear
steam or coolant escaping from the engine


Fig. 178 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > /A\ in General
information on page 228.
Checking the brake fluid level
> Read the brake fluid level on the brake fluid res-
ervoir > page 230, fig. 174. The brake fluid lev-
el must be between the MIN and MAX markings
oA.
The brake fluid level is monitored automatically.
Changing the brake fluid
Brake fluid should be changed at regular inter-
vals. Have the brake fluid changed by an
235