lock AUDI S4 2008 Workshop Manual
[x] Cancel search | Manufacturer: AUDI, Model Year: 2008, Model line: S4, Model: AUDI S4 2008Pages: 342, PDF Size: 15.01 MB
Page 169 of 342

Automatic gearbox167
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Shifting up a gear
– Briefly push the selector lever forwards (in the tiptronic
gate) ⇒page 166, fig. 180 .
Shifting down a gear
– Briefly pull the selector lever backwards (in the tiptronic gate) .With the tiptronic system the driver can manually choose between
7 different pre-programmed gears. The manual programme can be
selected either with the vehicl e stationary or on the move.
When accelerating, the gearbox automa tically shifts up into the next
gear shortly before the maxi mum engine speed is reached.
If you select a gear which is lower than the gear shown in the instru-
ment display ⇒page 166, fig. 181, the gearbox will only shift down
when there is no longer a risk of overrevving the engine.
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® or tiptronicBack-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 ligh
ting 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.
Vehicles with tiptronic gearbox: When the selector lever is in posi-
tion D or S or in the manual shift programme, the gearbox will
remain in 3rd gear if 1st, 2nd or 3rd gears were engaged when the
fault occurred. The gearbox will remain in 5th gear if 4th, 5th or 6th
gears were engaged. The gearbox wi ll then engage 3rd gear when
you drive away from a standstill or after the engine is restarted.
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 ev er 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: Paddle leversSteering wheel with paddle levers
The paddle levers on the steering wheel enable the driver
to manually select pre-programmed ratios or gears.
A+
A…
Fig. 182 Steering
wheel: tiptronic
switches
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Page 170 of 342

Automatic gearbox
168
– Briefly pull the left-hand pa ddle 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.Applies to vehicles: with multitronic® or tiptronicManual release of selector lever
The selector lever can be rele ased manually if the elec-
trical power supply should fail.
The manual release mechanism is behind the ashtray.
– Slide open the cover for the ashtray.
–Slide the switch ⇒ fig. 183 to the right to release the
ashtray.
– Take out the ashtray .
– You will now see a small cover cap at the front of the
opening in the ashtray mounting unit.
– Loosen and remove this cover cap.
– Use a screwdriver or similar object to press down the pin, which is now accessible, and hold it down ⇒fig. 184.
– Now press the interlock button on the selector lever and move the selector lever to position N.The selector lever can only be moved out of position P if the ignition
key is inserted and the ignition is switched on. If the power supply
should ever fail (discharged battery, etc.) and the vehicle has to be
pushed or towed, the selector lever must first be moved to
position N. This is possible after operating the manual release
mechanism.
A–A+Fig. 183 Removing
ashtray
Fig. 184 Manual
release of selector
lever
AA
AB
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Page 176 of 342

Parking aid
174•
Only use the reversing camera to assist you if it is supplying
you with a good and clear picture. The quality of the picture could
be impaired by adverse light, dirt on the lens or a defect (accident
risk).
•
Only use the reversing camera when the boot lid is completely
c lo s e d . P l e a se m a k e su re t h a t t h ere are no objects mounted to the
rear end of the vehicle which coul d block the view of the reversing
camera.Note
•
If your vehicle is near an obstacle, the graphic display will also
appear in the reversing camera image. This superimposed graphic
helps the driver to localise the critical area of the vehicle.
•
You can change the display and adjust the volume and pitch of
the beeps ⇒ page 177.
•
Please refer to the notes on towing ⇒ page 177.
•
There is a slight delay in the picture display.
Applies to vehicles: with Audi parking system advancedParking perpendicular to the roadside
Parking mode 1 can be used when parking your vehicle in
a garage or parking bay.– Turn the steering wheel until the orange orientation lines
are pointing towards the parking space ⇒fig. 192.
You can estimate the distance to an obstacle by referring
to the markings . Each marking is equivalent to
1metre.
WARNING (continued)
Fig. 192 MMI display:
Approaching a parking
spaceFig. 193 MMI display:
Aligning the vehicle
A1
A2
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Page 190 of 342

Safe driving
188Correct 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. 199. – 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. 200.
– Adjust the backrest to an upright position so that your back remains in contact with the upholstery.
– Fasten your seat belt correctly ⇒page 194 .
– 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 73, “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. 199.
•
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. 199 Minimum
distance between
driver and steering
wheelFig. 200 Correct head
restraint position for
the driver
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Safe driving193
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
inside. In this case the child wo
uld be unable to get out of the
vehicle without help. This could have fatal consequences.
•
Never allow children to play in or around the vehicle. Always
close and lock the boot lid and all the doors when you leave the
vehicle.
•
Never let passengers ride in the luggage compartment. All
occupants must be properly restrained by the seat belts at all
times ⇒page 194 .Note
•
Air circulation in the vehicle helps reduce fogging of the
windows. Used air escapes through ventilation slots in the rear of
the vehicle. Make sure that these ventilation slots are not
obstructed.
•
Suitable belts for securing loads to the fastening rings* are
commercially available.
Applies to vehicles: with fastening ringsFastening rings
Unsecured loads are a hazard to all vehicle occupants.There are fastening rings in the luggage compartment
which can be used to secure luggage and other objects
⇒ page 79 .
– Use the fastening rings to secure items safely in the luggage compartment ⇒ in “Loading the luggage
compartment” on page 79.During a collision or an accident, even small and light objects can
possess so much energy that they can cause very severe injuries.
The amount of this “kinetic energy” depends on the speed of the vehicle and the weight of the object. The most significant factor,
however, is the speed of the vehicle.
An example: An object weighing 4.5 kg is lying unsecured in the
vehicle. During a frontal collision at a speed of 50 km/h, this object
generates a force corresponding to 20 times its weight. That means
that the effective weight of the object increases to about 90 kg. You
can imagine the severity of the injuries which might be sustained if
this “projectile” strikes an occupant as it flies through the
passenger compartment.
WARNING
If items of luggage or other obje
cts are secured to the fastening
rings with inappropriate or da maged retaining cords, injuries
could result in the event of sudden braking or a collision.•
To prevent pieces of luggage or other objects from flying
forward, always use appropriate retaining cords which are prop-
erly secured to the fastening rings.
•
Never secure a child seat on the fastening rings.
WARNING (continued)
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Page 197 of 342

Seat belts195
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Important safety instructions for using seat belts
There are a number of safety points concerning the seat
belts which you should remember. This will help to reduce
the risk of injury in an accident.
WARNING
•
The seat belts can only provi de maximum protection if the
seats are adjusted properly ⇒page 73, “Seats and storage”.
•
To ensure proper protection, it is important to wear the seat
belts in the co rrect position ⇒page 197, “How to wear seat belts
properly”. Ensure that the seat belts are worn exactly as recom-
mended in this chapter. Belts wh ich are not worn properly can
increase the risk of injury in accidents considerably.
•
Do not allow the seat belt to be come twisted or jammed, or to
rub on any sharp edges.
•
Never allow two passengers (even children) to share the same
seat belt. It is especially dangerou s to place a seat belt over a child
sitting on your lap.
•
Do not wear the belt over hard or fragile objects (such as
glasses or pens, etc. ) because this can cause injuries.
•
Loose, bulky clothing (such as an overcoat over a jacket)
impairs the proper fit an d function of the belts.
•
The belts must be kept clean, otherwise the retractors may not
work properly ⇒page 250, “Seat belts”.
•
The slot in the seat belt buckle must not be blocked with paper
or other objects, as this can prev ent the latch plate from engaging
properly.
•
The latch plate of the belt mu st always be engaged in the
correct buckle for that seat, ot herwise the belt will not be fully
effective.
•
Check the condition of the seat bel ts at regular intervals. If you
notice that the belt webbing, fi ttings, retractor mechanism or buckle of any of the belts is da
maged, the belt must be replaced
by a qualified workshop.
•
The seat belts must not be remov ed or modified in any way. Do
not attempt to repair a damaged belt yourself.
•
Seat belts which have been worn in an accident and stretched
must be replaced by a qualified workshop. The belt anchorages
should also be checked.
Forces acting in a collisionThe physical principles involved in a frontal impact
Very large forces are generat ed during a collision; these
forces have to be absorbed.
WARNING (continued)
Fig. 204 Passengers of
a vehicle which is
headed for a brick wall.
They are not using seat
belts.
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Seat belts197
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
It is also important for the rear passengers to wear seat belts, as
they could otherwise be thrown forwards violently in an accident.
Rear passengers who do not use seat belts endanger not only them-
selves but also the other occupants
⇒page 196, fig. 207.
How to wear seat belts properlyPutting on the three-point seat belts
Always fasten your seat belts before driving off.– Adjust the front seat and head restraint correctly before
putting on the seat belt ⇒page 73, “Seats and storage”. – To fasten the belt, take hold of the latch plate and pull it
slowly across your chest and lap ⇒.
– Insert the latch plate into the buckle for the appropriate seat and push it down until it is securely locked with an
audible click ⇒fig. 209.
– Pull the belt to check that it is now securely fastened.
The three-point inertia reel belts are tensioned automatically. The
retractor system gives complete freedom of movement, as long as
the pull on the belt is slow. Hard braking locks the belt. The belt will
also lock when you accelerate, drive up or down a steep hill or in a
sharp curve.
WARNING
•
Always make certain that the belt is positioned properly
⇒ fig. 208 – risk of injury ⇒page 197, “Adjusting the seat belts”.
•
The latch plate of the belt must always be engaged in the
correct buckle for that seat. Oth erwise the belt will not be fully
effective and the danger of injury increases.
Adjusting the seat belts
Always position seat belts properly for maximum safety.
Fig. 208 Positioning of
head restraints and
seat beltsFig. 209 Driver's seat:
Belt buckle and latch
plate
Fig. 210 Adjusting
shoulder and lap belt
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Page 200 of 342

Seat belts
198The height of the front seat on your vehicle can be adjusted in order
to match the position of the seat belt to your height.
WARNING
•
The diagonal part of the belt s hould never be positioned across
the neck, but roughly over the centre of the shoulder; it should fit
closely against the upper part of the body. The lap part of the belt
must be worn tightly across the hips, and not over the abdomen
⇒ page 197, fig. 210. Pull the belt tight if necessary to take up any
slack.
•
Always make sure that belt is positioned properly. Incorrectly
worn seat belts can give rise to injuries even in a minor collision.
•
Seat belts worn too loose can re sult in injuries because they
allow excessive forward movement in a crash; the occupant will
be brought to a sudden stop by the belt webbing.
Wearing and adjusting the seat belts during pregnancy
To afford the best protection for the unborn child it is
important for the mother to wear the seat belt properly at
all times.
Women should always ensure they adjust the seat belt
correctly during pregnancy.
– Adjust the front seat and head restraint correctly before putting on the seat belt ⇒page 73, “Seats and storage”.
– To fasten the belt, take hold of the latch plate and pull it slowly down across your chest. Wear the lap portion of
the seat belt as low as possible over the hips so that there
is no pressure on the stomach ⇒fig. 211, ⇒.
– Insert the latch plate into the buckle for the appropriate seat and push it down until it is securely locked with an
audible click ⇒page 197, fig. 209.
– Pull the belt to check that it is now securely fastened.
WARNING
During pregnancy, women should especially make sure to wear
the lap portion of the seat belt as low as possible across the hips
so that there is no pressure on the stomach.
Fig. 211 Positioning
seat belts during preg-
nancy
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Page 224 of 342

Intelligent technology
222Intelligent technologyElectronic stabilisation program (ESP)DescriptionESP increases the car's stability. It reduces the tendency to skid and
improves the stability and roadhold ing of the vehicle. ESP detects
critical handling situations, such as understeer, oversteer and
wheelspin on the driven wheels. It stabilises the vehicle by braking
individual wheels or by reducing the engine torque. The warning
lamp
in the instrument cluster starts flashing as soon as the ESP
intervenes.
The ESP incorporates the functions of the anti-lock brake system
(ABS), the traction control system (ASR), the electronic differential
lock (EDL) and the dynamic steering*.
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 speed up the braking process and
shorten the braking distance. It au tomatically boosts the braking
force if you press the brake pedal quickly in an emergency. On vehi-
cles with adaptive cruise control*, the brake assist system will build
up a small amount of pressure in the hydraulic brake system if it
senses that you are too close to the vehicle in front.
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 other driven wheel (or wheels on quattro*
versions). This function is active up to about 100 km/h.
To prevent the disc brake of the braked wheel from overheating, the
EDL cuts out automatically if subjected to excessive loads. The
vehicle can still be driven. The EDL will switch on again automati-
cally when the brake has cooled down.
Dynamic steering*
On vehicles with dynamic steering*, the ESP can also intervene in
the steering to stabilise the vehicle in critical situations.
WARNING
•
The grip provided by the ESP,
ABS, ASR, EDL and dynamic
steering* systems is still subject to the physical limits of adhesion.
Always bear this in mind, especia lly 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.
•
Please remember that the acciden t risk always increases if you
drive fast, especially in corners or on a slippery road, or if you
follow too close behind th e vehicle in front of you. Please bear in
mind that even ESP, ABS, brak e assist, EDL, ASR and dynamic
steering* cannot compensate for the increased accident risk.
•
When accelerating on a uniformly slippery surface (for instance
all four wheels on ice or snow), pr ess the accelerator gradually and
carefully. The driven wheels may ot herwise start to spin (in spite
of the integrated control systems), which would impair the car's
stability and could lead to an accident.
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Intelligent technology225
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
WARNING
•
When applying the brakes to clean off deposits on the pads and
discs, select a clear, dry road. Be sure not to inconvenience or
endanger other road users; do not risk an accident.
•
Never let the car coast with the engine switched off (this can
cause accidents).Caution
•
Never let the brakes “drag” by leaving your foot on the pedal
when you do not really intend to brake. This overheats the brakes,
resulting in longer stopping distances and greater wear.
•
Before driving down a long, steep gradient, it is advisable to
reduce speed and move the selector lever to 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 intervals than to apply the brakes continuously.Note
•
If the brake servo is out of action due to a malfunction, or if the
car has to be towed, you will have to press the brake pedal consid-
erably harder to make up for the lack of servo assistance.
•
If you wish to equip the car with accessories such as a front
spoiler or wheel covers, it is impo rtant that the flow of air to the
front wheels is not obstructed, otherwise the brakes can overheat.
Power steering (servotronic)The power steering assists th e driver when turning the
steering wheel (with the engine running).The power steering assists the driver by reducing the force needed
to turn the steering wheel. The degree of power assistance is
adapted electronically , depending on the speed. If a fault should occur in the
servotronic system the power steering
will still operate. The degree of power assistance will, however, no
longer adapt to different speeds. If the electronic regulating system
is not working properly, this is most noticeable when turning the
steering wheel at low speeds (for instance when parking) – more
effort will be required than usual. The fault should be corrected by
a qualified workshop as soon as possible.
The power steering does not function when the engine is switched
off. In this case the steering wheel is very hard to turn.
If the steering is held at its turning limit when the car is stationary,
this will place an excessive load on the power steering system. In
this case, the power steering system will make noises. It will also
reduce the idling speed of the engine.
Caution
Do not keep the steering in the full-lock position for longer than
15 seconds when the engine is running – this could cause damage
to the power steering system.
Note
•
If the power steering should fail at any time or the engine is
switched off (for instance when being towed), the car can still be
steered. However, more effort will be required to turn the steering
wheel.
•
If the system is leaking or malfunctioning, please take the car to
a qualified workshop as soon as possible.
•
The power steering requires a special hydraulic fluid. The fluid
reservoir is located at the front of the engine compartment on the
left ⇒page 256 . The correct fluid level in the reservoir is important
for the power steering to function properly. The hydraulic fluid level
is checked at the Inspection Service.
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