light AUDI TT ROADSTER 2016 Repair Manual

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assist systems
General notes
Applies to: vehicles with Audi side assist
Fig. 102 Driving situations
--'(; --1 ) --
Fig. 103 Rear of vehicle: Location of the sensors (exam­
ple)
The side assist is active above a speed of
about 30 km/h.
@Vehicles approaching from behind
In certain cases, a vehicle is judged to be critical
in the event of a lane change even if it is still
some distance away. The faster a vehicle ap­
proaches, the earlier the warning will appear on
the exterior mirror.
@Vehicles moving at a similar speed
The warning lamp in the relevant exterior mirror
will warn you of vehicles that are moving with the
flow of traffic at about the same speed as you if
98 they
are judged to be critical in the event of a
lane change. In all cases, the side assist will give
a warning for the vehicles it has detected at the
latest when they enter the "blind spot".
@ Other vehicles being overtaken
When you are overtaking another vehicle slowly,
with a speed differential of less than 15 km/h,
the warning lamp in the exterior mirror will light
up as soon as the other vehicle enters your blind
spot.
If you are overtaking another vehicle quickly,
with a speed differential of more than 15 km/h,
the warning lamp will not light up.
System limitations
The radar sensors are designed for normal lane
widths and monitor the lanes immediately to the
left and right of your vehicle. In certain situations
the warning lamp on one of the exterior mirrors
may light up even if no vehicle is travelling in an
area that could be critical in the event of a lane
change. For example:
- When you are travelling in a narrow lane or
when you a re not travelling in the centre of the
lane. In this case the system may monitor an­
other lane and register a vehicle that is not in
fact travelling in an adjacent lane.
- When you are driving into a bend. The side as­
sist may react to a vehicle two lanes away.
- If the system detects other objects (such as
crash barriers, etc).
- In poor weather conditions. The functionality of
the side assist is then restricted.
The radar sensors ¢ Fig. 103 must not be ob­
structed by stickers, bicycle racks, deposits or any
other substances which could impair the function
of the system. For notes on cleaning, please refer
to ¢page 263.
A WARNING
- Always watch the road and the area sur­
rounding the vehicle. The side assist feature
is not a substitute for the full concentration
of the driver. The driver is always responsi­
ble for the safety of lane changes and other
manoeuvres. �

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In certain situations, the system may not
function properly, or the functionality of the
system may be restricted. For example:
- If other vehicles are approaching very
quickly, or if you are overtaking other
vehicles quickly. The warning lamp may
not light up in time.
- In poor weather conditions, such as heavy
rain, snow or road spray.
- If you are travelling in very wide lanes, in
tight bends or over crests. The system
may not detect vehicles in the adjacent
lane because they are outside the area
covered by the sensors.
CD CAUTION
Impacts or damage to the bumper, wheel
arches or underbody can cause misalignment
of the sensors. This can impair the functional­
ity of the system. Have the systems checked
by a qualified workshop.
(D} Note
The warning lamps on the exterior mirrors
may not be properly visible if tinted foil is af­
fixed to the side windows on the driver's or
passenger's side.
Switching on and off
Applies to: vehicles with Audi side assist
The system can be switched on and off on the in­
fotainment system.
"' Select the following on the infotainment sys­
tem: I MENU I button >Car> left control button
> Driver assist> Audi side assist.
The warning lamps in the exterior mirrors light
up briefly each time the ignition is switched on to
indicate that the system is activated. Driver
assist systems
Adjusting brightness of warning lamp
Applies to: vehicles with Audi side assist
The brightness of the warning lamp can be ad­
justed on the infotainment system.
"' Select the following on the infotainment sys­
tem: I MENU I button >Car> left control button
> Driver assist> Audi side assist.
The brightness of the warning lamp in both the
information and warning modes is regulated au­
tomatically according to the ambient light level.
If you are in very dark or very light surroundings
when you adjust the brightness of the warning
lamp, the automatic brightness control may al­
ready have reached the lowest or the brightest
setting. In such a case it is possible that you
won't notice a difference while you are adjusting
the brightness or that you will only notice it once
the light surroundings have changed.
Please adjust the brightness of the warning lamp
for the information mode so that it does not dis­
tract you while you are looking at the road in
front. When you change the brightness, the
warning lamp on the exterior mirror will light up
briefly with the intensity set for the information
mode. The intensity of the lamp in the warning
mode is linked to the intensity in the information
mode and is adjusted automatically.
(CD) Note
- The side assist is not active while the set­
tings are being adjusted.
- Your personal settings are stored automati­
cally and assigned to the remote control key
which is being used.
Driver messages
Applies to: vehicles with Audi side assist
Should the side assist be deactivated automati­
cally, a driver message will appear on the info­
tainment display.
@j Audi
side assist: currently unavailable.
Sensor view restricted due to surroundi ngs.
See owner's manual
The radar sensors are blocked. The area in front
of the sensors must not be obstructed by bicycle
..,..
99

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assist systems
racks, stickers, deposits or any other substances.
If necessary, clean the area in front of the sen­
sors ¢ page 98, Fig. 103.
@j Audi side
assist: currently unavailable.
See owner's manual
The side assist is temporarily inoperative and
cannot be switched on (for instance if the battery
is not sufficiently charged).
@j Audi
side assist: fault. Please contact
workshop
The system cannot detect vehicles reliably and
will be deactivated. The sensors are out of align­
ment or defective. Have the system checked by a
qualified workshop soon.
Audi drive select (vehicle
set-up functions)
Introduction
Applies to: vehicles with Audi drive select
Drive select allows you to use different set-ups
on your vehicle. The four modes efficiency*, com­
fort, auto and dynamic allow the driver, for ex­
ample, to change from a sporty mode to a more
comfortable one via the �.:i.l\:'I button in the centre
console or via the infotainment system. In addi­
tion, the individual mode allows you to adapt the
vehicle set-up to suit your personal driving style.
For example, you might choose to combine a
more dynamic engine set-up with a lighter steer­
ing response.
Description
Applies to: vehicles with Audi drive select
The possible vehicle set-up in each mode de­
pends on which equipment is installed on your
vehicle.
Engine and automatic gearbox*
The response of the engine and automatic gear­
box* to accelerator pedal movements will be
more spontaneous or balanced, depending on
which mode you select. In efficiency* mode the
automatic gearbox* selects the next gear at low­
er engine speeds and the coasting mode is activa-
100 ted
¢ page 82. This helps to reduce fuel con­
sumption.
Suspension control (Audi magnetic ride)*
The suspension control uses sensors to collect in­
formation on steering movements, braking and
acceleration input by the driver, road surface
quality, road speed and vehicle loading. With
drive select you can choose between dynamic and
comfort-oriented suspension set-ups (dynamic
and comfort modes), or opt for a more balanced
set-up (auto mode).
Steering
The degree of power assistance can be varied.
The light, indirect steering response in comfort
mode is particularly suitable on long motorway
trips, for instance. The steering has a tighter,
more direct feel in dynamic mode.
Air conditioner*
The air conditioner runs in a particularly econom­
ical mode when the efficiency* setting is selec­
ted. When this function is selected, eco* is shown
in the display of the automatic air conditioner.
Cruise control system*
The acceleration response is particularly econom­
ical in efficiency* mode.
Engine sound*
The sound of the engine is matched to the selec­
ted mode and ranges from subdued to dynamic.
(QJ} Note
- On some models the vehicle's maximum
speed can only be obtained in the auto and
dynamic modes.
- On vehicles with manual gearbox, an E ap­
pears in the gear-change indicator when ef­
ficiency* mode is activated.
-Applies to vehicles with manual gearbox: If
you press the accelerator right down past
the point of resistance in efficiency* mode,
the engine power is automatically control­
led to give your vehicle maximum accelera-
tion. ..,.

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CX) Parking
aids
General notes
Applies to: vehicles with rear parking aid/parking system
plus/park assist
Various systems are available to help you when
parking or manoeuvring in tight spaces, depend­
ing on the equipment fitted on your vehicle.
The rear parking aid gives an acoustic warning if
there are any obstacles behind the car
¢page 104.
When you are parking, the parking system plus
warns you acoustically and optically about obsta­
cles detected in front of and behind the vehicle
¢page 104. On vehicles with park assist, the
area detected at the side of the vehicle ®
¢page 104, Fig. 106 is also monitored.
The reversing camera uses the infotainment sys­
tem display to show a picture of the area behind
the vehicle captured by the camera. Orientation
lines in the image from the reversing camera as­
sist you when parking or manoeuvring
¢ page 106. In addition, you are assisted by the
functions of the parking system plus
¢page 104.
The park assist helps you to find suitable parking
spaces, to manoeuvre the vehicle into spaces par­
allel or perpendicular to the roadside and to drive
out of spaces parallel to the kerb ¢ page 108.
A WARNING
-Always watch the road and the area sur­
rounding the vehicle. The electronic systems
cannot replace the full concentration of the
driver. The driver is always responsible for
safety during parking and all other manoeu­
vres.
- Please note that certain surfaces, such as
clothing fabrics, cannot be detected or dis­
played by the system -risk of accident!
- The sensors and cameras have blind spots in
which neither people nor objects are regis­
tered. It is particularly important to ensure
that there are no small children or animals
near the vehicle -risk of accident! Parking
aids
- Impacts or damage to the radiator grille,
bumper, wheel arches or underbody can
cause misalignment of the sensors. This can
impair the effectiveness of the parking aids.
Have the systems checked by a qualified
workshop.
CD CAUTION
- The system may not always be able to de­
tect objects such as the following:
- Chains, trailer draw bars, posts or fences
- Objects above the sensors, such as wall
protrusions, etc.
- Objects with certain surfaces or struc­
tures, such as wire fences or powder snow
- As your car moves closer to low obstacles,
they may disappear from the sensors' field
of vision. Please note that you will no longer
be warned about these obstacles.
- Remember to maintain sufficient clearance
from the kerb to avoid damaging the wheel
rims.
(@ Note
- In certain situations, a warning may be giv­
en by the system even if there is no obstacle
within range of the sensors. This can be
caused by the following, for instance:
- Certain road surfaces or long grass
- External ultrasound sources, e.g. from
street cleaning vehicles
- Heavy rain or snow or dense exhaust
fumes
- To familiarise yourself with the system, we
recommend that you practise parking in a
quiet location or a car park. The weather
and light conditions should be good.
- You can adjust the volume of the beeps.
- There is a slight delay in the picture display.
- To ensure that the acoustic parking aid
works properly, the sensors must be kept
clean and free of snow and ice.
103

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Note
Zone ®
* is detected and analysed as the vehi­
cle is moving past. When you switch on the ig­
nition or after the vehicle has been stationary
for a while or a door is opened, the ambient
surroundings may have changed. Zone®
* is
displayed in black on the infotainment system
for this reason.
Switching on/off
Applies to: vehicles with parking system plus
Fig. 107 Centre console: Button for parking aid
Fig. 108 Proximity graphic (vehicles with park assist*)
Switching on
... Engage reverse gear, or
... Press the p,,,i button in the centre console
¢ Fig. 107. You will hear a brief acknowledge­
ment tone and the LED in the button will light
up.
Switching off
.,. Drive forwards faster than 10 km/h or
I
... Press the p,,,i button, or
... Switch off the ignition. Parking
aids
Automatic activation
The parking aid is activated automatically when
the vehicle approaches an obstacle from a dis­
tance of approx. 95 cm at speeds below 10 km/h.
You will hear the warning beeps when the obsta­
cle is within a distance of approx. 50 cm. If the
parking aid is switched off by pressing the P,#A.
button, it is only reactivated automatically if one
of the following conditions has been met:
- The vehicle is driven faster than 10 km/h.
- The ignition is switched off and on again.
- The parking brake is applied and released
again.
- Position Pis selected (automatic gearbox).
Segments in the graphic display
You can estimate the distance to an obstacle by
referring to the segments in front of and behind
the vehicle (vehicles with parking system plus*)
or the segments surrounding the vehicle
(vehicles with park assist*) ¢Fig. 108. The red
lines indicate the anticipated path of the vehicle,
depending on the steering wheel angle. A white
segment indicates an obstacle that has been de­
tected beyond the path of travel. Red segments
represent objects detected within the path of
travel. The closer the vehicle gets to the obstacle
the closer the segments move towards the vehi­
cle in the graphic. At the latest when the penulti­
mate segment is highlighted the vehicle has
reached the danger (collision) zone. Obstacles
within the danger (collision) zone are shown in
red, even if they are beyond the path of travel.
Stop moving immediately ¢ A in General notes
on page 103, ¢(Din General notes on page 103!
105

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aids
Reversing camera
Introduction
Applies to: vehicles with reversing camera
Fig. 109 Diagram: Orientation lines for parking
The reversing camera assists you by displaying
orientation lines when you are parking or ma­
noeuvring the vehicle.
General notes
Applies to: vehicles with reversing camera
@ : Area covered by the reversing camera;@:
area NOT covered by the reversing camera
Fig. 111 Boot lid: Location of reversing camera N
CD
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The reversing camera is located above the rear
number plate. Please ensure that the lens of the
reversing camera ¢ Fig. 111 is kept free of de­
posits and any other substances which could im-
106 pair
the function of the parking aid. Notes on
cleaning ¢page 263.
(D ¢ Fig. 110 represents the area covered by the
reversing camera. Only this area is shown in the
picture on the infotainment display. Objects out
of range of the camera in area @do not appear
in the picture.
A WARNING
- Please observe the safety warnings ¢ A in
General notes on page 103.
- For safety reasons, you should not use the
system if the position and installation angle
of the reversing camera have been changed,
e.g. due to an accident. Have it checked by a
qualified workshop.
- Only use the reversing camera to assist you
if it is supplying you with a good and clear
picture. The quality of the picture can be im­
paired by adverse light, dirt on the lens or a
defect.
- Only use the reversing camera when the
boot lid is completely closed. Please make
sure that there are no objects mounted to
the rear end of the vehicle which could block
the view of the reversing camera.
- The camera lens enlarges and distorts the
field of vision. Objects on the screen are
modified and depicted inaccurately.
- In certain situations, people or objects on
the display may appear closer or further
away than they really are:
- Objects which are not touching the
ground, such as the bumper of a parked
vehicle, a tow-bar or the rear end of a
truck. In this case, do not use the orienta­
tion lines as a guide.
- When you are reversing from a horizontal
surface up a gradient or down a hill.
- When approaching protruding objects.
- When the vehicle has been loaded with a
greater load on the rear.
CD CAUTION
- Please observe the safety warnings ¢(Din
General notes on page 103.

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The orange orientation lines on the infotain­
ment display show the path of the rear end
of the vehicle if you were to reverse using
the current steering angle. Please note that
the front end of the vehicle swings out fur­
ther than the rear. Please make sure you
keep a sufficient distance between the vehi­
cle and any obstacles to make sure that the
exterior mirror or edge of the vehicle do not
collide with the obstacles.
Switching on/off
Applies to: vehicles with reversing camera
Switching on
� Engage
reverse gear, or
� Press the p,,1.4 button in the centre console
¢ page 105, Fig. 107. You will hear a brief ac­
knowledgement tone and the LED in the button
will light up.
Switching off
� Drive forwards faster than 10 km/h, or
� Press the p,�.4 button, or
� Switch off the ignition.
(D} Note
- The graphic on the left of the display helps
identify the critical area of the vehicle.
- You can change the display and adjust the
volume of the beeps ¢ page 112.
Parking perpendicular to the roadside
Applies to: vehicles with reversing camera
This view can be used when parking your vehicle
in a garage or parking bay.
Fig. 112 Infotainment display: Approaching a parking
space Parking
aids
Fig. 113 Infotainment display: Aligning the vehicle
� Switch on the infotainment system and select
reverse gear.
� The orange orientation lines(!) represent the
path of the vehicle. Turn the steering wheel un­
til the orange orientation lines are pointing to­
wards the parking space ¢Fig. 112. You can es­
timate the distance to an obstacle by referring
to the markings @. Each marking is equivalent
to approx. 1 metre. The blue marking is an ex­
tension of the vehicle outline and reaches
about five metres to the rear of the vehicle.
� Reverse into the space and adapt the steering
angle to the parking space, using the orange
lines to assist you¢&. in General notes on
page 106, ¢CJ) in General notes on page 106.
® represents the rear bumper. Stop moving, at
the latest, when the red orientation line@ is
bordering on an obstacle.
107

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technology
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
technology
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-
115

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technology
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¢&.
�