2016 AUDI TT ROADSTER warning

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Electronic stabilisation
control (ESC)
Description
The electronic stabilisation control (ESC) increa­
ses the car's stability. It reduces the tendency to
skid and improves the stability and road holding
of the vehicle. The ESC detects critical handling
situations, such as understeer, oversteer and
wheelspin on the driven wheels. It stabilises the
vehicle by braking individual wheels or by reduc­
ing the engine torque. The indicator lamp DJ in
the instrument cluster starts flashing as soon as
the ESC intervenes.
The following systems are integrated in the ESC:
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up under
braking until the vehicle has reached a virtual
standstill. You can continue to steer the vehicle
even when the brakes are on full. Keep your foot
on the brake pedal and do not pump the brakes.
You will feel the brake pedal pulsate while the
anti-lock brake system is working.
Brake assist system
The brake assist system can shorten the braking
distance. The braking force is automatically boos­
ted if you press the brake pedal quickly in an
emergency. You must keep pressing the brake
pedal until the danger has passed.
Traction control system (ASR)
In the event of wheelspin, the traction control
system reduces the engine torque to match the
amount of grip available. This helps the car to
start moving, accelerate or climb a gradient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes the
spinning wheel and directs the power to the oth­
er driven wheel (or wheels on quattro* versions).
0 This
function is not available at high speeds.
� To
prevent the disc brake of the braked wheel
8 from
overheating, the EDL cuts out automatically
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if subjected to excessive loads. The vehicle can
still be driven. The EDL will switch on again auto­
matically when the brake has cooled down.
Steering recommendation
The ESC helps to stabilise the vehicle by changing
the steering wheel torque.
Selective wheel torque control
Selective wheel torque control intervenes when
cornering by braking the wheel(s) on the inside of
the bend individually as required. This enables
precision cornering. The relevant system may not
intervene in the wet or snow.
Multicollision brake assist system
The "multicollision brake assist system" can help
to reduce the risk of skidding and further colli­
sions during an accident. If the airbag control
unit detects that a collision has taken place up­
wards of a certain speed, the vehicle is braked by
the ESC.
The vehicle will not be braked automatically if:
- the driver presses the accelerator,
- the brake pressure applied by pressing the
brake pedal is higher than the brake pressure
initiated by the system,
- or the ESC, the brake system or the vehicle's
electrical system are not fully functional.
A WARNING
- The grip provided by the ESC and the inte­
grated systems is still subject to the physi­
cal limits of adhesion. Always bear this in
mind, especially on wet or slippery roads. If
you notice the systems cutting in, you
should reduce your speed immediately to
suit the road and traffic conditions. Do not
let the extra safety provided tempt you into
taking any risks when driving -this can
cause accidents.
- Remember that the accident risk always in­
creases if you drive fast, especially in cor­
ners or on a wet or slippery road, or if you
follow too close behind the vehicle in front
of you. Please bear in mind that even the
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ESC and the integrated systems cannot
compensate for the increased accident risk.
- When accelerating on a uniformly slippery
surface (for instance all four wheels on ice
or snow), press the accelerator gradually
and carefully. The driven wheels may other­
wise start to spin (in spite of the integrated
control systems), which would impair the
car's stability and could lead to an accident.
@ Note
- The ABS and ASR systems can only work
properly if all four tyres have a similar de-
Switching on/off gree of
wear. Any differences in the rolling
radius of the tyres can cause the system to
reduce engine power when this is not de­
sired.
- The systems can make noises when they in­
tervene.
The ESC is switched on automatically when the engine is started.
the ESC is restricted or switched off, and the ve­
hicle is stabilised to a greater or lesser degree.
In the following special situations, it may be ad­
visable to switch on the sport mode to allow a
certain amount of wheels pin:
- Rocking the car backwards and forwards to free
it
- Driving in deep snow or on loose surfaces
- Driving with snow chains
The ESC operates in several levels. Depending on
which level is selected, the stabilising function of
Sport mode on
Cha racteris- The
stabilising function of
tics the
ESC and traction control
system (ASR) is restricted
¢ &_ .
Controls Press
the I� OFF! button
briefly.
Indicator II
lights up.
lamps
Driver mes- Stabilisation
control (ESC):
sages sport. Warning! Restricted
stability
114 ESC/ASR
off
The stabilisation function is
no longer available
¢&.
.
ESC and traction control
system (ASR) are switched
off.
Press the I� OFF! button for
longer than 3 seconds.
II and@i lt)U
* light
up.
Stabilisation control (ESC):
switched off. Warning! Re-
stricted stability Sport
mode off or ESC/ ASR
on
The stabilising function of
the ESC and traction control
system (ASR) is fully availa-
ble again.
Press the I� o FF I button
again.
II goes out, or II and
lii l
•l�� *
go
out.
Stabilisation control (ESC):
switched on

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WARNING
You should switch on the sport mode or
switch off the ESC/traction control system
(ASR) only if your driving ability and the traf­
fic conditions allow you to do so safely -dan­
ger of skidding!
- The stabilising function is restricted when
sport mode is switched on. The driven
wheels may start to spin, causing the vehi­
cle to lose grip, in particular on slippery or
wet roads.
- When the ESC/traction control system
(ASR) is switched off, the vehicle will not be
stabilised.
@ Note
- The ESC/traction control system (ASR) can­
not be switched off and the sport mode can­
not be switched on when the cruise control
system* is on.
- In the event of a malfunction in the rear
spoiler system or the Audi magnetic ride, it
may not be possible to switch off the ESC/
ASR or switch on the sport mode.
Brakes
New brake pads
New brake pads do not give full braking effect for
the first 400 km, they must first be "bedded in".
However, you can compensate for the slightly re­
duced braking effect by applying more pressure
on the brake pedal. Avoid placing a heavy load on
the brakes during the running-in period.
Wear
The rate of wear on the brake pads depends a
great deal on how you drive and the conditions in
which the vehicle is operated. Negative factors
are, for instance, city traffic, frequent short trips
or hard driving with abrupt starts and stops.
Noises
Brake noise may develop in certain situations, de­
pending on the speed, braking force and ambient
conditions (such as temperature and relative hu­
midity). Intelligent
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Effect of moisture and salt
In certain conditions, such as in heavy rain, early
morning dew, or after washing the car or driving
through water, the full braking effect can be de­
layed by moisture (or in winter by ice) on the
discs and brake pads. The brakes should be
"dried" by pressing the pedal to restore full brak­
ing effect.
When you are driving at higher speeds with the
windscreen wipers on, the brake pads are very
briefly brought into contact with the brake discs.
This automatic process which goes unnoticed by
the driver is carried out at regular intervals and is
intended to improve braking response in wet con­
ditions.
The effectiveness of the brakes can also be tem­
porarily reduced if the car is driven for some dis­
tance without using the brakes when there is a
lot of salt on the road in winter. The layer of salt
that accumulates on the discs and pads can be
removed with a few cautious brake applications.
Corrosion
There may be a tendency for dirt to build up on
the brake pads and corrosion to form on the discs
if the car is used infrequently, or if you only drive
low mileages without using the brakes very
much.
If the brakes are not used frequently, or if corro­
sion has formed on the discs, it is advisable to
clean off the pads and discs by braking firmly a
few times from a moderately high speed ¢ A.
Faults in the brake system
If the brake pedal travel should ever increase
suddenly, this may mean that one of the two
brake circuits has failed. Drive immediately to the
nearest qualified workshop and have the fault
rectified. On the way to the dealer, be prepared
to use more pressure on the brake pedal and al­
low for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if the
brake fluid level is too low. The brake fluid level
is monitored electronically.
llll-
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Brake servo
The brake servo amplifies the pressure you apply
to the brake pedal.
A WARNING
- When applying the brakes to clean off de­
posits on the pads and discs, select a clear,
dry road. Be sure not to inconvenience or en­
danger other road users; do not risk an acci­
dent.
- Never let the car coast with the engine
switched off (this can cause accidents).
CD CAUTION
- Never let the brakes "drag" by leaving your
foot on the pedal
when
you do not really in­
tend to brake. This overheats the brakes, re­
sulting in longer stopping distances and
greater wear.
- Before driving down a long, steep gradient,
it is advisable to reduce speed and select a
lower gear. In this way you will make use of
the engine braking effect and relieve the
load on the brakes. If you still have to use
the brakes, it is better to brake firmly at in­
tervals than to apply the brakes continuous­
ly.
� Note
-If the brake servo is out of action, you must
apply considerably more pressure to the
brake pedal than you normally would.
- If you wish to equip the car with accessories
such as a front spoiler or wheel covers, it is
important that the flow of air to the front
wheels is not obstructed, otherwise the
brakes can overheat.
Electro-mechanical
power steering
Electro-mechanical power steering assists the
driver when steering.
The degree of power assistance is adapted elec­
tronically, depending on the speed.
116 Warning/indicator
lamps and driver
messages
• Steering: fault. Please stop vehicle
If the warning lamp Lights up permanently and
the message appears, there may be a power
steering failure.
Stop the vehicle in a safe place as soon as possi­
ble. Do NOT drive on. Obtain professional assis­
tance.
� Steering: fault. You can continue driving
If the indicator lamp lights up, the steering re­
sponse may be heavier or Lighter than usual. In
addition, it is possible that the steering wheel
will be off centre when driving in a straight Line.
Drive slowly to a qualified workshop and have the
fault rectified.
('!)) Note
You can drive on if the warning/indicator
lamp . or� Lights up only briefly.
Four-wheel drive
(quattro)
Applies to: vehicles with four-wheel drive
On quattro models the engine power is distrib­
uted to all four wheels.
General notes
On four-wheel drive vehicles, the engine power is
distributed to all four wheels. The distribution of
power is controlled automatically according to
your driving style and the road conditions. Also
refer to¢ page 113, Electronic stabilisation con­
trol (ESC).
The four-wheel drive is specially designed to
complement the superior engine power of your
Audi. This combination gives the car exceptional
handling and performance capabilities -both on
normal roads and in more difficult conditions,
such as snow and ice. Even so (or perhaps espe­
cially for this reason), it is important to observe
certain safety points¢&.
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tyres
Thanks to its four-wheel drive, your car will have
plenty of traction in winter conditions, even with
the standard tyres. Nevertheless, we still recom­
mend that winter tyres or all-season tyres should
be fitted on all four wheels when winter road
conditions are expected, mainly because this will
give a better braking response.
Snow chains
On roads where snow chains are mandatory, this
also applies to cars with four-wheel drive
¢ page 2 5 7, Snow chains.
Replacing tyres
On vehicles with four-wheel drive, all four tyres
must have the same rolling circumference. Also
avoid using tyres with varying tread depths
¢ page 254, New wheels or tyres.
Off-roader?
Your Audi does not have enough ground clear­
ance to be used as an off-road vehicle. It is there­
fore best to avoid rough tracks and uneven ter­
rain as much as possible.
A WARNING
- Even with four-wheel drive, you should al­
ways adjust your speed to suit the condi­
tions. Do not Let the extra safety provided
tempt you into taking any risks when driving
- this can cause accidents.
- The braking ability of your car is limited by
the grip of the tyres. In this respect, your
car is no different from a car without four­
wheel drive. So do not be tempted to drive
too fast on icy or slippery roads just because
the car still has good acceleration in these
conditions -risk of accident!
- On wet roads bear in mind that the front
wheels may start to "aquaplane" and Lose
contact with the road if the car is driven too
fast. If this should happen, there will be no
sudden increase in engine speed to warn the
driver, as with a front-wheel drive car. So do
not drive too fast in the wet: adjust your
speed to suit the conditions (accident risk). Intelligent
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Rear spoiler
Applies to: vehicles with automatic rear spoiler
The automatic rear spoiler increases the car's
stability.
Fig. 122 Centre console: Button for rear spoiler
The rear spoiler can be extended or retracted
manually or automatically.
Automatic mode (normal operation)
- Automatic extension: The rear spoiler is auto­
matically extended at road speeds above ap­
proximately 120 km/h.
-Automatic retraction: The rear spoiler is auto­
matically retracted at road speeds below ap­
proximately 80 km/h.
Manual mode
- Manual extension: Briefly press the button
¢Fig. 122 to extend the rear spoiler all the way
out.
- Manual retraction: At road speeds up to about
20 km/h, press and hold the button to retract
the rear spoiler. At road speeds between
20 km/h and 120 km/h, press the button brief­
ly to retract the rear spoiler all the way back.
Warning and indicator lamps
1!1 !1111
R
ear
spoiler: fault. Please contact work­
shop
The rear spoiler may have failed to extend due to
a malfunction. In this case, the car's handling
may be different at high speeds. Drive to a quali­
fied workshop without delay (but do not exceed
140 km/h) and have the fault rectified. The col­
our of the Lamp depends on the current road
speed. l)IJ,,
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A WARNING
When extending or retracting the rear spoiler,
please make sure that no persons or objects
are close to the moving spoiler -risk of injury!
CD CAUTION
- If you need to push the vehicle, never put
your weight on the rear spoiler -Risk of
damage!
- To avoid damage to the rear spoiler, you
should not lean on it or apply any other type
of pressure.
- Do not operate the rear spoiler manually
when the boot lid is open or any moving
parts of the automatic rear spoiler are ob­
structed -risk of damage!
Note
Clean the rear spoiler housing every 2 to 3
months. The rear spoiler housing must be
free of ice, snow and leaves in order to oper­
ate correctly.
Power management
This system helps to ensure reliable
starting
The power management controls the distribu­
tion of electrical energy and thus helps to ensure
that there is always enough power available to
start the engine.
If a vehicle with a conventional electrical system
is left parked for a long time, the vehicle battery
will gradually lose its charge because certain
electrical equipment (such as the immobiliser)
continues to draw current even when the ignition
is off. In some cases there may not be enough
power available to start the engine.
Your vehicle is equipped with an intelligent pow­
er management system to control the distribu­
tion of electrical energy. This significantly im­
proves reliability when starting the engine, and
also prolongs the life of the vehicle battery.
The main functions incorporated in the power
management system are battery diagnosis, re-
118 sidual
current management and dynamic power
management.
Battery diagnosis
The battery diagnosis function constantly regis­
ters the condition of the vehicle battery. Sensors
detect the battery voltage, battery current and
battery temperature. This enables the system to
calculate the current power level and charge con­
dition of the vehicle battery.
Residu al current management
The residual current management reduces power
consumption while the vehicle is parked. It con­
trols the supply of power to the various electrical
components while the ignition is switched off.
The system takes the battery diagnosis data into
consideration.
Depending on the power level of the vehicle bat­
tery, the individual electrical components are
switched off one after the other to prevent the
vehicle battery from losing too much charge and
to ensure that the engine can be started reliably.
Dynamic power management
While the vehicle is moving, this function distrib­
utes the available power to the various electrical
components and systems according to their re­
quirements. It ensures that on-board systems do
not consume more electrical power than is being
generated, and thus maintains the maximum
possible vehicle battery power level.
.
1 Note
- The power management system is not able
to overcome the given physical limits.
Please remember that the power and life of
the vehicle battery are limited.
- If the indicator lamp ri'.J ¢ page 15 appears,
the starting ability may be impaired.
Points to remember
Starting ability has first priority.
Short trips, city traffic and low temperatures all
place a heavy load on the vehicle battery. In
these conditions a large amount of power is

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but only a small amount is supplied.
The situation is also critical if electrical equip­
ment is in use when the engine is not running. In
this case power is consumed when none is being
generated.
In these situations you will be aware that the
power management system is intervening to con­
trol the distribution of electrical power.
When the vehicle is parked for long periods
If you do not drive your vehicle for a period of
several days or weeks, the power management
will gradually shut off the on-board systems one
by one, or reduce the amount of current they are
using. This limits the amount of power consumed
and helps to ensure reliable starting even after a
long period. Certain convenience features, such
as remote control unlocking, may not be availa­
ble. These functions will be restored when you
switch on the ignition and start the engine.
With the engine switched off
If you listen to the radio or use the other info­
tainment functions when the engine is not run­
ning, this will discharge the vehicle battery.
The infotainment display will show a warning
message before the battery power drops to a lev­
el where the starting ability is impaired. This
message warns you that the system you are using
will soon be switched off automatically. You
should therefore start the engine if you wish to
continue using the system.
When the engine is running
Although the alternator generates electrical
power, the vehicle battery can still become dis­
charged while the vehicle is being driven. This can
occur when a lot of power is being consumed but
only a small amount supplied, especially if the
vehicle battery is not fully charged initially.
To restore the necessary energy balance, the sys­
tem will then temporarily shut off the electrical
components that are using a lot of power, or re­
duce the current they are consuming. Heating
systems in particular use a large amount of elec­
trical power. If you notice, for instance, that the
seat heating* or the rear window heater is not Intelligent
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working, they may have been temporarily switch­
ed off or regulated to a lower heat output. These
systems will be available again as soon as suffi­
cient electrical power is available.
You may also notice that the engine runs at a
slightly faster idling speed. This is quite normal,
and no cause for concern. The increased idling
speed allows the alternator to meet the greater
power requirement and charge the vehicle bat­
tery at the same time.
Information saved in the
control units
The vehicle is fitted in the factory with electronic
control units that, among other things, control
the engine and the gearbox. The control units al­
so monitor the exhaust system and the airbags.
The control units continually analyse data rele­
vant to the vehicle while you are driving. In the
event of faults or anomalies in the vehicle data,
only these data are saved. As a rule, faults are
shown by the warning lamps in the instrument
cluster.
Data saved in the control units can only be read
and analysed with special equipment.
A qualified workshop is only able to recognise
and deal with faults by using the relevant saved
data. Among other things, the saved data may
contain the following information:
- Data relating to the engine and the gearbox
-Speed
- Direction of travel
- Braking force
- Seat belt warning system data
The control units installed will not under any cir­
cumstances record conversations in the vehicle.
Event data recorder
Your vehicle is not equipped with an event data
recorder.
In an event data recorder, information about
the
vehicle is temporarily saved. In the event of an
accident, you can therefore obtain detailed infor-
mation about the course of events. On vehicles ...,.
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with an airbag system, accident-related data
such as impact speed, seat belt status, seat posi­
tions and trigger times can be saved. The exact
information saved depends on the manufacturer.
The installation of an event data recorder is sub­
ject to the agreement of the vehicle's owner. This
process is governed by legislation in some coun­
tries.
Reprogramming control units
All data for controlling components are saved in
the control units. Some convenience features,
such as one-touch signalling, single door unlock­
ing and display messages can be reprogrammed
using special workshop equipment. If any con­
venience features are reprogrammed, the infor­
mation in this Owner's Manual will no longer be
accurate for the features that have been
changed. We recommend having the reprogram­
ming approved.
Your Audi dealer will be able to provide you with
information about possible reprogramming op­
tions.
Event memory
There is a diagnostic connection for reading out
the event memory located in the footwell on the
driver's side of the vehicle. Information regard­
ing the operation and status of the vehicle's elec­
tronic control units is stored in the event memo­
ry. The event memory should only be read out
and erased by a qualified workshop.
A WARNING
The diagnostic connection must not be used
for other purposes. Incorrect use can cause
malfunctions -risk of accident!
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