wheel AUDI TT ROADSTER 2016 Owner's Guide

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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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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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aids
Park assist with 360°
display
Description
Applies to: vehicles with park assist
The park assist helps the driver to manoeuvre
the vehicle into and out of parking spaces.
Fig. 114 Diagram: Parking parallel to the roadside
Fig. 115 Diagram: Parking perpendicular to the roadside
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. The parking
space can be located between two vehicles or be­
hind one vehicle. The park assist takes over the
steering while the driver is parking the vehicle in
the usual way.
The parking system plus is an integral compo­
nent of the park assist c:::> page 10
4 and
helps you
during the parking manoeuvre.
The park assist sensors are located on the sides
of the front and rear bumpers. Please ensure that
the sensors are kept free of stickers, deposits and
any other substances which could impair the
function of the system. Notes on cleaning
c:::>page 263.
108 In
short parking spaces, the parking aid warning
tone will sound continuously when the vehicle is
less than approx. 0.20 m away from the obstacle.
Stop moving immediately!
A WARNING
- Please observe the safety warnings c:::> &. in
General notes on page 103.
- Please note that the park assist only han­
dles the steering. As the driver you are al­
ways responsible for braking and accelerat­
ing.
- It is the driver's responsibility to decide
whether a parking space shown in the dis­
play is suitable for the vehicle.
- The front of the vehicle swings out during
the parking manoeuvre. Please take all nec­
essary measures to ensure that other road
users are not endangered.
- The steering wheel turns rapidly on its own
when parking the vehicle and leaving the
space. Injury may result if a person reaches
between the spokes on the steering wheel
when it is turning.
CD CAUTION
- Please observe the safety warnings c:::>(j) in
General notes on page 103.
- In certain situations, the park assist will
guide the vehicle onto or across the kerb,
for instance if other vehicles are parked on
the kerb. You should always be ready to
take over the steering wheel in order to pre­
vent damage to the tyres and/or wheel
rims.
- Certain conditions in and around the park­
ing space can cause unexpected results
when parking.
- Ob j
ects such as pillars, posts, etc.
- Road surfaces such as loose gravel, snow,
ice, etc.
ijJ} Note
- The electronic stabilisation control (ESC)
must not be switched off during the parkingmano euvre
c:::>page
11
4
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-�

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aids
- The best parking results will be achieved if
you position the vehicle as parallel as possi­
ble to the line of parked cars or the kerb be­
fore you start the actual parking manoeu­
vre.
-If there are suitable parking spaces on both
sides of the road (for instance on a one-way
street), you can change the direction of the
turn signals to park on the other side, even
if you have already activated the park assist.
Parking parallel to the roadside
Applies to: vehicles with park assist
The driver is responsible for parking the vehicle.
t' 3 '\.
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- 1 '"*-w )
' -,-,.
-
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D�
; READY
'\. * OFF
Fig. 119 Instrument cluster: Prompt to select reverse
gear
'2' 3
2
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- - 1 '\.
� \
�
'-.
'--""'."" ' I
R )_
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READY
_,,..,
'\. * OFF
Fig. 120 Instrument cluster: Manoeuvring into a parking
space
� Drive forwards until the arrow is displayed
¢Fig. 119 ¢.&.
in Description on page 108,
¢ (D
in Description on page 108.
� After
stopping for a moment, select reverse
gear.
� Wait until the following text appears in the dis­
play: Park assist: steering assistance active.
Please drive slowly and operate the brakes
yourself.
� Take your hands off the steering wheel.
110 �
Watch the road. When the road is clear, press
the accelerator gently ¢.&.
in Description on
page 108, ¢(D
in Description on page 108.
� Follow the instructions on the display
¢page 111 and the acoustic warning tones
until the parking manoeuvre is complete. The
arrows show the required direction of travel.
The park assist automatically steers the vehicle
into the parking space while the driver operates
the pedals (accelerator, brake, clutch*). The max­
imum parking speed is 7 km/h. The park assist
will be deactivated if you drive too fast or move
the steering wheel by hand. To continue the park­
ing manoeuvre, press the I@ button again. The
park assist display will reappear in the instru­
ment cluster.
Driving out of a parking space parallel to
the roadside
Applies to: vehicles with park assist
The driver is responsible for manoeuvring the ve­
hicle out of the parking space.
If the vehicle is parked parallel to the roadside,
the park assist can help you to manoeuvre the ve­
hicle so that you can drive straight out of the
parking space.
� Start the engine.
� Press the I@ button ¢ page 109, Fig. 116.
� Wait until the following text appears on the in­
fotainment display: To leave parking space se­
lect reverse gear and operate turn signal.
� Operate the appropriate turn signal.
� Engage reverse gear.
� Take your hands off the steering wheel.
� Watch the road. When the road is clear, press
the accelerator gently ¢.&.
in Description on
page 108, ¢(D
in Description on page 108.
� Follow
the instructions on the display
¢page 111 and the acoustic warning tones
until you are clear to leave the parking space.
� The procedure is over when no more manoeu­
vring is necessary in order to drive out of the
space. Take over the steering.
The park assist automatically steers the vehicle
out of the parking space while the driver operates
the pedals (accelerator, brake, clutch*). The
�

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manoeuvring speed is 5 km/h. The
park assist will be deactivated if you drive too
fast or move the steering wheel by hand. To con­
tinue the parking manoeuvre, switch the engine
off/on. Then press the I@ button again. Alterna­
tively, drive out of the parking space without us­
ing the park assist.
Driver messages
Applies to: vehicles with park assist
Iii! Park assist: steering assistance active.
Please drive slowly and operate the brakes your­
self
The park assist is ready. You can now park the ve­
hicle. Watch the road ¢ & in Description on
page 108.
Ill Park assist: ended. Please take over steer­
ing.
The park assist has finished the parking manoeu­
vre.
Ill Park assist: cancelled. Continue steering ve­
hicle!
The park assist has interrupted the parking ma­
noeuvre to avoid a collision between the vehicle
and an obstacle.
Ill Park assist: cancelled. Steering input detec­
ted. Continue steering vehicle!
The steering assistant has been deactivated be­
cause the driver has intervened in the steering.
To continue the parking manoeuvre, press the
I@ button again.
[9] Reduce your speed! For the best results when
passing the line of parked cars where you want to
park, do not drive faster than 30 km/h (if parking
parallel to the roadside) or 20 km/h (if parking
perpendicular to the roadside) ¢ page 109.
Ill Park assist: cancelled. Speed too high. Con­
tinue steering vehicle!
You were driving too fast into the parking space.
Do not exceed 7 km/h when driving into the park-
� ing space.
� Ill
Park assist: currently unavailable. Stabilisa­
o
[;:j tion
control (ESC) off Parking aids
Switch the ES( on to use the park assist.
Iii! To leave parking space select reverse gear
and operate turn signal
The park assist is ready. You can leave the park­
ing space. Watch the road ¢ & in Description on
page 108.
Ill Park assist: cancelled. Stabilisation control
(ESC) input. Continue steering vehicle!
Take over the steering. Finish parking without
the park assist or drive out of the parking space.
The park assist has interrupted the parking ma­
noeuvre, because the ESC has been switched off.
Take over the steering or switch on the ESC
¢page 114 and start the parking manoeuvre
again ¢page 109.
Ill Park assist: ended. Please take over steering
and continue driving.
The park assist has finished manoeuvring the ve­
hicle out of the parking space. Please take over
the steering.
Ill Park assist: cancelled. Space too small
The assist function is unable to automatically
steer the vehicle out of the parking space be­
cause the space is too small. Manoeuvre the vehi­
cle out of the parking space without using the
park assist.
Ill Park assist: time limit exceeded
Ill Park assist: cancelled. Time limit exceeded.
Continue steering vehicle!
The parking manoeuvre was not completed with­
in about six minutes after the park assist was ac­
tivated. To continue the parking manoeuvre,
press the I@ button again.
Ill Park assist: currently unavailable
Ill Park assist: currently unavailable. Continue
steering vehicle!
The park assist cannot be used to park the vehi­
cle. Try repeating the parking manoeuvre or
switching the ignition off and on again.
Ill Park assist: not stopped long enough
Ill-
111

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technology
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
"
Vl Intelligent
technology
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
113

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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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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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