wheel AUDI A5 COUPE 2008 Owner's Manual

Automatic gearbox135
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
When the vehicle slows down (for
instance when braking), the
gearbox automatically shifts down into the next gear when the
minimum engine speed is reached.
Changing down to a lower gear increases the engine braking effect
on downhill gradients.
When the accelerator pedal is pressed right down past the point of
resistance at full throttle, the ge arbox will select a lower gear,
depending on road speed and engine speed.
Applies to vehicles: with multitronic®Back-up programme
A back-up system is in place should a fault occur in the
control system.The automatic gearbox switches to the back-up programme if a fault
should occur in the control system. This is indicated by all segments
of the display panel either lighti ng up together or going out
completely.
It is still possible to move the selector lever to all positions. The
manual shift programme (tiptronic) is not available when the back-
up programme is active.
It will still be possible to use reverse gear in the normal way.
However, the electronic lock for reverse gear will be switched off.
Caution
Should the gearbox ever switch into the back-up programme, you
should take the vehicle to an Audi dealer or qualified workshop as
soon as possible.
Applies to vehicles: Tiptronic controls on steering wheelSteering wheel with tiptronic controls
The paddle levers on the steering wheel enable the driver
to manually select seven pre-programmed ratios (gears).– Briefly pull the left-hand paddle lever to change down to a lower gear.
– Briefly pull the right-hand paddle lever to change up to a higher gear.The paddle levers are activated when the selector lever is in position
D or S, or the position for the manual shift programme (tiptronic).
The manual shift programme can, of course, still be operated using
the selector lever in the centre console.
Fig. 149 Steering
wheel: tiptronic
switchesA…A+
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Audi parking system147
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
– Press the control button for Mode ⇒page 145,
fig. 161. “Parking mode 2” ⇒fig. 162 will appear in the
MMI display.
– Reverse and align the position of your vehicle in such a
way that the dark blue area marking ⇒fig. 162
borders onto the vehicle be hind or onto the parking
space line marking. If you are not parking next to obsta-
cles ⇒page 150 the long side of the dark blue marking
should border onto the kerb. The complete dark blue
area marking must fit into the parking space ⇒page 143,
fig. 157.
– When the vehicle is stationary turn the steering wheel to the right as far as it will go.
– Reverse into the parking space. If you are not parking
next to obstacles ⇒ page 150 the dark blue marking
should touch the kerb ⇒page 146, fig. 163. Stop your
vehicle.
– Turn the steering wheel to the left as far as it will go (vehicle is stationary).
– Continue to reverse into the parking space until the vehicle is standing parallel to the kerb. When reversing
you must also keep a close watch on the front end of the
vehicle ⇒.You can use “Parking mode 2” to park on the left or the right side of
the road. For this reason, the blue markings are shown in various
shades of blue. The dark blue ar ea marking and the dark blue
curve are used when parking on the right side of the road. The
light blue area marking and the light blue curve are used
when parking on the left side of the road. When the turn signals are on, the
display will only show the mark-
ings for the relevant side. To change the display to the other side,
just switch on the opposite turn signals.
The light blue and dark blue cu r v e s s h o w y o u w h e n t o t u r n t h e
steering wheel in the other direction, i.e. when the curve touches
the kerb. ⇒page 146, fig. 163.
The distance from your rear bumper to the red line is approx.
40 cm. From here at the latest, th e driver should not reverse any
further ⇒page 151 .
WARNING
Please note that objects which are not touching the ground may
appear to be further away than th ey actually are (e.g. the bumper
of a parked vehicle, a towing bracke t or the rear end of a truck). In
this case you should not use the orientation lines for judging the
distance (accident risk).
Caution
The MMI display shows the path of the rear end of the vehicle if you
were to reverse using the current steering angle. NB: The front end
of the vehicle swings out further than the rear.
Note
To ensure that the reversing camera works properly, the lens of the
camera ⇒page 140, fig. 154 must be kept clean and free of snow
and ice. Please observe the additional notes on ⇒page 152 .Applies to vehicles: with parking system and towing bracketTo w i n g b r a c k e tOnce the electrical connector for the trailer socket is plugged in on
vehicles with a factory-fitted towing bracket the rear sensors for the
AAA2
A4
A2
A4
A1
A3
A3
A4
A5
A6
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Safe driving
164Correct sitting positionsCorrect sitting position for driver
The correct driving position is important for safe and
fatigue-free driving.For your own safety, and to reduce the risk of injury in the
event of an accident, we re commend the following driving
position.
– Adjust the steering wheel so there is a distance of at least 25 cm between the steering wheel and your breastbone
⇒fig. 173. – Move the driver's seat forwards or backwards so that you
can press the accelerator, brake and clutch pedals all the
way to the floor with your knees slightly bent ⇒.
– Make sure that you can comfortably reach the top of the steering wheel.
– Adjust the head restraint so that the top of the head restraint is level with the top of your head ⇒fig. 174.
– Adjust the backrest to an upright position so that your back remains in contact with the upholstery.
– Fasten your seat belt correctly ⇒page 170 .
– Keep both feet in the footwe ll so that you are in full
control of the vehicle at all times.
For detailed information on how to adjust the driver's seat, see
⇒ page 70, “Seats and storage”.
WARNING
•
A driver who is not sitting in the correct position or who is not
wearing a seat belt can be fatally injured if the airbag is triggered.
•
Adjust the driver's seat so there is a distance of at least 25 cm
between your breastbone and th e centre of the steering wheel
⇒ fig. 173.
•
While driving, always hold the steering wheel with both hands
on the outside of the rim at about the 9 o'clock and 3 o'clock posi-
tion. This reduces the risk of injury if the driver's airbag inflates.
•
Never hold the steering wheel at the 12 o'clock position, or
with your hands inside the rim or on the steering wheel hub. This
could result in serious injuries to the arms, hands and head if the
driver's airbag inflates.
•
To reduce any risk of injury to the driver during a sudden brake
application or in an accident, neve r drive with the backrest tilted
Fig. 173 Minimum
distance between
driver and steering
wheelFig. 174 Correct head
restraint position for
the driver
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Seat belts
172The physical principles involved in a frontal collision are relatively
simple:
Both the moving vehicle and the passengers possess energy, which
is known as “kinetic energy” ⇒ page 171, fig. 178. The amount of
“kinetic energy” depends on the speed of the vehicle and the weight
of the vehicle and passengers. The higher the speed and the greater
the weight, the more energy there is to be absorbed in an accident.
The most significant factor, however, is the speed of the vehicle. If
the speed doubles from 25 km/h to 50 km/h, for example, the kinetic
energy increases by a factor of four. Because these passengers are
not restrained by seat belts, the entire amount of kinetic energy has
to be absorbed at the point of impact ⇒fig. 179. This would result
in serious or potentially fatal injury.
Even at urban speeds of 30 km/h to 50 km/h, the forces acting on the
occupants in a collision can reach the equivalent of 1 ton (1000 kg)
or more. At greater speed these forces are even higher. A rule of
thumb: if the speed doubles, the forces increase by a factor of four.
Passengers who do not wear seat belts are not “attached” to the
vehicle. In a frontal collision they will continue to move forward at
the speed their car was travelling just before the impact.
What happens to passengers not wearing seat belts?
Passengers not wearing seat belts risk fatal injuries in the
event of an accident.In a frontal collision, unbelted passengers will be thrown forwards
and make violent contact with the steering wheel, dashboard, wind-
screen, etc ⇒ fig. 180. Passengers not wearing their belts risk being
thrown out of the car, resulting in potentially fatal injuries.
The common belief that occupants can brace their weight with their
hands in a minor collision is false. Even at low speeds the forces
acting on the body in a collision are so great that it is not possible
to hold yourself in the seat.
Fig. 179 The vehicle
crashes against the
wall
Fig. 180 A driver not
wearing a seat belt can
be thrown forwardsFig. 181 A rear
passenger not wearing
a seat belt can be
thrown forwards
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Airbag system
178Front airbagsDescription of front airbags
The airbag system is not a substitute for the seat belts.The front airbag for the driver is located in the padded hub of the
steering wheel ⇒page 178, fig. 187. The front airbag for the front
passenger is in the dashboard above the glove box ⇒fig. 188. The
locations of the airbags are ma rked with the word “AIRBAG”.
In conjunction with the three-point seat belts, the front airbags give
additional head and chest protection for the driver and front
passenger in the event of a severe frontal collision ⇒ in “Impor-
tant safety notes on th e front airbag system” on page 179.
How the front airbags work
When fully inflated, the airbags reduce the risk of head or
chest injury.The airbag system is designed so th at the airbags for the driver and
front passenger are triggered in a severe frontal collision.
In certain types of accident the front airbags, side airbags and one
of the head-protection airbags may be triggered together.
When the system is triggered, the airbags fill with a propellant gas
and open out in front of the driver and front passenger ⇒fig. 189.
In order to provide the desired extra protection in an accident, the
airbags have to inflate extremel y rapidly (within fractions of a
second). The fully deployed airbags cushion the forwards move-
ment of the front occupants and help to reduce the risk of injury to
the head and the upper part of the body.
Special openings in the airbag allow the gas to escape at a
controlled rate to restrain the forward movement of the occupant's
head and torso. Once the impact has been absorbed, the airbag
deflates sufficiently for the front occupants to see forward.
Fig. 187 Driver's
airbag in steering
wheelFig. 188 Front
passenger's airbag in
dashboard
Fig. 189 Front airbags
in inflated condition
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Airbag system179
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Important safety notes on the front airbag system
There are a number of safety points concerning the airbag
system which you should remember. This will help to
reduce the risk of injury in an accident.
WARNING
•
It is important for the driver an d front passenger to maintain a
distance of at least 25 cm from the steering wheel or dashboard
⇒ page 179, fig. 190. The airbag system will not be able to give the
required protection if you sit to o close to the steering wheel or
dashboard. There is also a risk of injury if the airbags are inflated.
The front seats and head restra ints must always be positioned
correctly for the height of the occupant.
•
If you do not wear a seat belt, if you lean forward or to the side,
or are not seated correctly while the vehicle is in motion, you are
at greater risk of injury. Should the airbag system be triggered in
an accident there is an even greater risk of injury.
•
Never let a child travel on the fr ont seat without an appropriate
restraint system. If the airbag is triggered in an accident, the child
could sustain serious or fatal injuries ⇒page 185, “Child safety”.
•
Never install a rearward-facing child safety seat on the front
passenger's seat unless the fr ont passenger's airbag has been deactivated. However, if you have no alternative but to use a rear-
ward-facing child seat on the fr
ont passenger's seat, the front
passenger's airbag must be deac tivated beforehand by means of
the key-operated switch* ⇒page 183. Failure to observe this
precaution could result in serious or potentially fatal injury.
•
Occupants sitting in the front of the car must never carry any
objects or pets in the space between them and the airbags, or
allow children or other passengers to travel in this position.
•
Do not cover or stick anything on the steering wheel hub or the
soft plastic surface of the airbag unit on the passenger's side of
the dashboard, and do not obstru ct or modify them in any way.
These parts should only be cleaned with a dry cloth (or with a
cloth moistened with plain water) . It is also important not to
attach any objects such as cup ho lders or telephone mountings to
the surfaces covering the airbag units.
•
Any work on the airbag system or removal and installation of
the airbag components for other repairs (such as repairs to the
steering wheel) must be performed by a qualified workshop.Note
If necessary, you can deactivate the front passenger's airbag by
means of the key-operated switch* ⇒page 183 .
Fig. 190 Minimum
distance from steering
wheel
WARNING (continued)
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Intelligent technology
196Intelligent technologyElectronic stabilisation program (ESP)General notes
The electronic stabilisation program increases the car's
stability on the road.The ESP is designed to enhance the control over the vehicle in crit-
ical handling situations, such as when accelerating and cornering.
It reduces the tendency to skid under all road conditions and
improves the stability and roadholding of the vehicle. The system
works at all speeds. The anti-lock brake system (ABS),
the electronic differential lock
(EDL) and the traction control system (ASR) are all integrated into
the electronic stabilisation program.
How the system works
The ESP control unit processes data from the three integrated
systems. It also processes addition al inputs provided by other high-
precision sensors. These register the vehicle's rotation about the
vertical axis (yaw rate), lateral acceleration, brake pressure and
steering wheel angle.
The system uses the steering wheel angle and road speed to calcu-
late the changes of direction intended by the driver, and constantly
compares them with the actual be haviour of the vehicle. If the
desired course is not being maintained (for instance, if the car is
starting to skid), then the ESP compensates automatically by
braking the appropriate wheel.
The forces acting on the braked wheel effectively bring the car back
to a stable condition. If the car is oversteering (rear wheels losing
grip first) the brake application is concentrated on the outside front
wheel; if the car is understeering (front wheels losing grip first), ESP
brakes the inside rear wheel. This automatic brake application is
accompanied by characteristic noises.
The ESP works in conj unction with the ABS ⇒page 197 . If a
malfunction should occur in the A BS, the ESP will also be out of
action.
Switching on
The ESP is switched on automatically when the engine is started
and performs a self-test routine. As soon as this routine is complete,
the system switches back to normal operating mode. You can press
the button ⇒fig. 203 or ⇒ fig. 204 to switch on the ESP or traction
control system (ASR) if they have been switched off. The message
ESP/ASR on will appear briefly in the display.
Fig. 203 Without MMI:
Centre console with
ESP switchFig. 204 Centre
console with ESP
switch
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Intelligent technology197
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Switching off
The ESP should normally be left switched on at all times. If required,
you can press the ESP OFF button to switch off the traction control
system (ASR) or the electronic stabilisation program (ESP).
•
Switching off the traction control system (ASR):
Press the ESP
button briefly. The traction control system (ASR) can be switched off
in special driving conditions, e.g. if you are driving with snow chains
⇒ page 198 . The message ASR off will appear in the display.
•
Switching off the ESP/traction control system (ASR): Press the
ESP button for longer than 3 seconds. The ESP/ASR warning lamp
lights up when the system is switched off, see ⇒page 16 . The
message ESP switched off will appear in the display.
WARNING
•
The ESP is not able to overcome th e physical limits of adhesion.
Even with ESP, you sh ould always adjust your speed to suit the
conditions. Please bear this in mind, especially on wet or slippery
road surfaces. Do not let the extr a safety provided tempt you into
taking any risks when drivin g – this can cause accidents.
•
Please note that, when the ESP or ESP/traction control system
(ASR) is switched off, the driven wheels may start to spin, causing
the vehicle to lose grip, in part icular on slippery or wet roads -
danger of skidding!
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up under braking.The anti-lock brake system (ABS) is an important part of the car's
active safety system. However, the ABS will not necessarily guar-
antee shorter stopping distances in all conditions. For instance, on
loose gravel or fresh snow on top of an icy surface (conditions which
anyway require extreme care and reduced speed), the stopping
distance with ABS may even be slightly longer. How the ABS works
The system runs an automatic self-check when the car reaches a
road speed of about 6 km/h. This may be accompanied by a noise
from the ABS pump.
If one of the wheels is turning too slowly in relation to the road
speed, and is close to locking up, the system will reduce the pres-
sure in the brake line to this wheel. The driver is made aware of this
control process by a
pulsating of the brake pedal and accompa-
nying noise. This is a deliberate warning to the driver that one or
more of the wheels is tending to lock up and the ABS control func-
tion has intervened. In this situation it is important to keep the brake
pedal fully depressed so the ABS can regulate the brake application
- do not “pump” the brake pedal.
WARNING
The grip provided by ABS is still su bject to the physical limits of
adhesion. Always bear this in mind, especially on wet or slippery
roads. If you notice that the AB S is working (to counteract locked
wheels under braking), you should reduce speed immediately to
suit the road and traffic conditio ns. Do not let the extra safety
provided tempt you into taking an y risks when driving – this can
cause accidents.
Note
If a malfunction should occur in the ABS, this is indicated by a
warning lamp ⇒page 18 .Brake assist system
The brake assist system helps the driver to achieve
optimum braking effect.The brake assist system helps to increase braking power and thus to
achieve a shorter stopping distance . If the driver presses the brake
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Intelligent technology
198pedal very quickly, the brake assist system automatically boosts the
braking force to the maximum level, up to the point where the anti-
lock brake function (ABS) intervenes to stop the wheels from
locking. You should then keep the brake pedal pressed until the
vehicle has braked to the required speed. The brake assist system
switches itself off as soon as you release the brake pedal.
The brake assist system will not be operative if there is a malfunc-
tion in the ABS.
WARNING
Please remember that the accident risk always increases if you
drive too fast, especially in corners or on a slippery road, or if you
follow too close behind the vehicle in front of you. An increased
accident risk cannot be compensated even by the brake assist
system, so always be sure to maintain a safe speed.Traction control system (ASR)
The traction control system prevents the driven wheels
from spinning when the car is accelerating.General notes
The traction control system (ASR) is one of the functions incorpo-
rated in the electronic stabilisation program (ESP).
The traction control system (ASR) helps the car to start moving,
accelerate and climb a gradient in slippery conditions where this
may otherwise be difficult or even impossible.
How the system works
The ASR acts automatically i.e. without the driver's intervention.
With the aid of the ABS sensors ⇒page 197 , the ASR monitors the
speed of the driven wheels. If the wheels start to spin, the engine
power is reduced automatically to match the amount of grip avail-
able. The system works at all speeds. The ASR works in conjunction with the ABS. If a malfunction should
occur in the ABS, the ASR will also be out of action.
Switching on
The ESP is switched on automatically when the engine is started
and performs a self-test routine. As soon as this routine is complete,
the system switches back to normal operating mode. If the traction
control system (ASR) has been deactivated (for one of the reasons
noted below) you can switch it back on manually by pressing the
switch
⇒page 196, fig. 203. The message ESP/ASR on will appear
briefly in the display. If the traction control system (ASR) has been
deactivated, it will switch back on automatically at a speed of about
70 km/h on vehicles with front-wheel drive.
You can switch the traction control system (ASR) on again if neces-
sary by pressing the switch ⇒page 196, fig. 203.
Switching off
If required, the ASR can also be switched off manually by pressing
the switch briefly ⇒page 196, fig. 203 (for less than 3 seconds). The
ESP warning lamp lights up when the traction control system (ASR)
is switched off, see ⇒page 16 . The message ASR off will appear in
the display. For safety reasons, the system can only be switched off
at speeds below 50 km/h on vehicl es with front-wheel drive. The
ASR can be deactivated at any speed on vehicles with four-wheel
drive.
The traction control system should normally remain switched on at
all times. It should only be switched off manually in particular
circumstances where a certain amount of wheel slip may be desir-
able. For example:
•
when driving with snow chains
•
when driving in deep snow or on loose surfaces
•
when rocking the car backwards and forwards to free it.
The ASR should be switched on again afterwards as soon as
possible.
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Intelligent technology199
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Note
To ensure that the ASR works properly, all four wheels must be fitted
with identical tyres. Any differences in the rolling radius of the tyres
can cause the system to reduce engine power when this is not
desired. Also refer to ⇒page 245, “Replacing wheels and tyres”.Electronic differential lock (EDL)
The electronic differential lock monitors the speed of the
driven wheels.General notes
The electronic differential lock (EDL) helps the car to start moving,
accelerate and climb a gradient in slippery conditions where this
may otherwise be difficult or even impossible.
How the system works
The EDL acts automatically. With the aid of the ABS sensors
⇒page 197 , the system monitors the rotational speed of the driven
wheels on each axle. Whenever it detects a significant difference in
the speed of the driven wheels of one axle (for example, if the road is
slippery on one side ) the system applies the brake to slow down the
spinning wheel so that more of the power is directed to the other
wheel of this axle (or to the three other wheels on vehicles with four-
wheel drive). This function is active up to about 100 km/h. The brake
system will make noises while it is working.
Driving away from a standstill
Sometimes one wheel has less grip and starts spinning, for
example, if one of the driven wheels is on ice. In this case, keep
pressing the accelerator gradually until the car starts moving, even
though the wheel with less grip will still spin.
Overheating of the brakes
To prevent the disc brake of the braked wheel from overheating, the
EDL cuts out automatically if subjected to excessive loads. The car remains operational and will behave in the same way as a car
without EDL.
The EDL will switch on again automatically when the brake has
cooled down.
WARNING
•
When accelerating on a uniforml
y slippery surface (for instance
all four wheels on ice or snow), press the accelerator gradually and
carefully. The driven wheels may ot herwise start to spin (in spite
of the EDL), which would impair th e car's stability and could lead
to an accident.
•
Even with EDL, you should always adjust your speed to suit the
conditions. Do not let the extr a safety provided tempt you into
taking any risks when drivin g – this can cause accidents.Note
If the ABS warning lamp lights up, th is can also mean there is a fault
in the EDL. Please contact a qualified workshop as soon as
possible.BrakesNew brake pads
New brake pads do not give full br aking effect for the first 400 km,
they must first be “bedded in”. However, you can compensate for
the slightly reduced braking effect by applying more pressure on
the brake pedal. Avoid placing a heavy load on the brakes during the
running-in period.
We ar
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
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