brake pads AUDI R8 2007 Owners Manual

Driver information system 34Yellow symbols are accompanied by one warning chime. The func-
tion indicated should be checked as soon as possible. If several
faults are detected at the same time, the symbols are displayed one
after the other for about 2 seconds at a time.
Driver messages
Additional messages to assist the driver are displayed in
conjunction with the warning lamps and symbols in the
instrument cluster.The display will show the appropriate message if the system detects
a bulb failure ⇒page 37, if the brake pads are worn or you have not
yet selected a gear on a vehicle with R tronic.
The driver can also call up messages in the display for additional
information if a red warning symbol starts flashing.
Calling up driver messages
For example, in the event of an oil pressure malfunction the oil pres-
sure symbol

will appear in the display. If you now press the
adjuster/test button ⇒fig. 31 for at least one second, the following
message will appear in the display:
SWITCH OFF ENGINE AND CHECK OIL LEVEL
The message will disappear from the display after about 5 seconds.
If required, the message can be called up again by briefly pressing
the adjuster/test button.

Brake pads worn
⇒page 37

Speed warning 1*
⇒page 37

Speed warning 2*
⇒page 37

Dynamic headlight range con-
trol faulty
⇒page 37

Washer fluid level low
⇒page 37

Battery voltage too high or too
low
⇒page 37

Bulb monitor
⇒page 37
 or BRAKE
LIGHT
Brake light failure
⇒page 38

Light sensor/rain sensor (auto-
matic headlights) defective
⇒page 38
 and

Selector lever defective*
No R gear*
⇒page 38
 and

Clutch overheating*
⇒page 38
Fig. 31 Detail of the
instrument cluster:
Adjuster/test button
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Driver information system37
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Check engine oil level

 Please check oil level
If the  symbol lights up, add 1 litre of oil at the next opportunity
⇒page 158.
Engine oil sensor defective

If the

symbol lights up, take the vehicle to a qualified workshop
and have the oil level sensor checked.
Front brake pads worn

If the
 symbol lights up, have the front brake pads (and, for
safety's sake the rear pads as well) inspected by a qualified
workshop.
Speed warning 1

If the
 symbol lights up, this means you are exceeding the speed
that has been pre-set with the speed warning function. You should
reduce your speed accordingly ⇒page 31.
Speed warning 2

If the
 symbol lights up, this means you are exceeding the speed
that has been pre-set for speed warning 2. You should reduce your
speed accordingly ⇒page 31.
Headlight range control defective

This symbol
 indicates a malfunction in the dynamic headlight
range control. Take the vehicle to a qualified workshop to have the
dynamic headlight range control function repaired.
Washer fluid level low

If the
 symbol lights up, top up the fluid for the windscreen
washer and headlight washer system ⇒page 164.
Battery voltage too high or too low

If the
 symbol lights up, take the vehicle to a qualified workshop
and have the following items checked:
•
Poly-V belt
•
Battery condition
It is also advisable to check whether the alternator warning lamp
has come on ⇒page 18.
Bulb monitor

The bulb monitor checks whether the lights on the vehicle
are working.If a defective bulb is detected, or if one of the lights has failed for
any reason, the bulb monitor symbol
 will appear in the display
together with an additional message (which goes out after
5 seconds). For instance, if the rear left turn signal is not working,
the display in the instrument cluster will show the following
message:
REAR LEFT TURN SIGNAL
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Intelligent technology 134Rear spoilerThe automatic rear spoiler increases the car's stability.The rear spoiler can be extended or retracted manually or automat-
ically.
Automatic mode (normal operation)•
Automatic extension: The rear spoiler is automatically extended
at road speeds above approximately 100 km/h.
•
Automatic retraction: The rear spoiler is automatically retracted
at road speeds below approximately 35 km/h.
Manual mode
•
Manual extension: Press the switch ⇒page 134, fig. 111 briefly
to extend the rear spoiler all the way out.
•
Manual retraction: At road speeds up to about 20 km/h, press
and hold the switch to retract the rear spoiler. At road speeds
between 20 km/h and 100 km/h, press the switch briefly to retract
the rear spoiler all the way back.
Manual mode will be deactivated for up to 2.5 minutes after 15
extension and retraction cycles. The system switches to automatic
mode at road speeds above approximately 100 km/h.
WARNING
•
If the rear spoiler warning lamp lights up, the rear spoiler may
have failed to extend. In this case, the car's handling may be
different at high speeds. We recommend you not to exceed 140
km/h. Drive to a qualified workshop as soon as possible and have
the fault corrected.
•
When extending or retracting the rear spoiler, please make sure
that no persons or objects are close to the moving spoiler - risk of
injury!Caution
•
If you need to push the vehicle, never put your weight on the rear
spoiler - Risk of damage!
•
Do not operate the rear spoiler manually when the engine lid is
open - Risk of damage!Note
Clean the rear spoiler housing every 2 to 3 months. The rear spoiler
housing must be free of ice, snow and leaves in order to operate
correctly.BrakesNew 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 reduced braking effect by applying more pressure on
the brake pedal. Avoid placing a heavy load on the brakes during the
running-in period.
Fig. 111 Switch for
rear spoiler
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Intelligent technology135
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data 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
factors are, for instance, city traffic, frequent short trips or hard
driving with abrupt starts and stops.
Wet roads; road salt
When you are driving at a speed higher than 70 km/h and have the
windscreen wipers switched on (at or above intermittent setting 4)
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 conditions.
In certain conditions, such as in heavy rain, or after washing the car
or driving through water, the full braking effect can be delayed 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
braking effect.
The effectiveness of the brakes can also be temporarily reduced if
the car is driven for some distance without using the brakes when
there is a lot of salt on the road in winter. The layer of salt that accu-
mulates 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 corrosion 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 ⇒.
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 immedi-
ately 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 allow 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.
Brake servo
The brake servo amplifies the pressure you apply to the brake pedal.
It only works when the engine is running.
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 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 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 important that the flow of air to the
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Your vehicle and the environment139
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Sporty drivingLetting the engine warm up and cool downYou can reduce the amount of wear and tear on your vehicle during
a sporty driving session simply by adopting a more restrained
driving style while the engine is warming up and cooling down.
You should allow the engine to warm up by keeping the engine
speed below 7000 rpm until the engine oil reaches at least 90 °C. In
addition, the tyres will not develop their full grip potential until they
have had a chance to warm up on the road.
Even though the engine continues to be cooled after you switch it
off, it is particularly important to give it time to cool down before
parking. The engine, brakes, exhaust system and gearbox will all
reach very high temperatures when you adopt a sporty driving style.
Before you park the vehicle, allow it to cool down to normal temper-
ature by driving at moderate rpm speeds for several miles.Driving on a racing circuitBefore you take your car out on a racing circuit, please ensure that
it is in perfect condition. You should check the tyre tread and brake
pads for wear. It's also a good idea to increase the tyre pressure by
0.3 bar.
The oil consumption may be slightly higher than “normal” when
driving on a racing circuit ⇒page 157.
You should always check your vehicle after driving hard. Are the
brake pads ok? Do you notice any problems with the tyres (e.g. tread
worn, blistering, etc.)? Are the air intakes free of leaves and
deposits? Is the oil level ok?
Your Audi R8 dealer will be glad to carry out an inspection before
and after you use the car on a racing circuit.
Note
•
Some racing circuits (e.g. with banked curves) can affect the
behaviour of the ESP.
•
Driving the car on a racing circuit places a heavy load on all parts
of the vehicle. This can result in increased wear and tear.
Environmental compatibilityEnvironmental protection is a top priority in the design, choice of
materials and production of your new Audi. Particular importance
has been attached to the following aspects:
Design measures for economical recycling•
Joints and connections designed for ease of dismantling
•
Modular construction to facilitate dismantling
•
Increased use of single-grade materials
•
Plastic parts and elastomers are labelled in accordance with ISO
1043, ISO 11469 and ISO 1629
Choice of materials
•
Nearly all materials used can be recycled
•
Similar types of plastics grouped together for easy recycling
•
Recycled materials used in manufacture
•
Reduced vapour emissions from plastics
•
CFC-free refrigerant in air conditioner
Compliance with the laws prohibiting the use of:
•
Cadmium
•
Asbestos
•
Lead
•
Mercury
•
Chrome VI
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Index 202AABS
SeeAnti-lock brake system . . . . . . . . 132
AC mode
Air conditioner . . . . . . . . . . . . . . . . . . . 79
Acceleration figures
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 198
Accessories . . . . . . . . . . . . . . . . . . . . . . . . 174
acoustic parking system
SeeParking aid . . . . . . . . . . . . . . . . . . . 85
Air conditioner . . . . . . . . . . . . . . . . . . . . . . 75
AC mode . . . . . . . . . . . . . . . . . . . . . . . . . 79
Air distribution . . . . . . . . . . . . . . . . . . . 77
Air recirculation mode . . . . . . . . . . . . . 78
Automatic mode . . . . . . . . . . . . . . . . . . 78
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Controls . . . . . . . . . . . . . . . . . . . . . . . . . 75
Defrosting . . . . . . . . . . . . . . . . . . . . . . . 78
Dust filter . . . . . . . . . . . . . . . . . . . . . . . . 75
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Pollen filter . . . . . . . . . . . . . . . . . . . . . . 75
Rear window heating . . . . . . . . . . . . . . 79
Seat heating . . . . . . . . . . . . . . . . . . . . . 80
Switching on/off . . . . . . . . . . . . . . . . . . 77
Temperature . . . . . . . . . . . . . . . . . . . . . 76
Ventilation . . . . . . . . . . . . . . . . . . . . . . . 75
Air distribution
Air conditioner . . . . . . . . . . . . . . . . . . . 77
Air recirculation mode
Vehicles with air conditioner . . . . . . . . 78Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Deactivating . . . . . . . . . . . . . . . . . . . . . 120
Front airbags . . . . . . . . . . . . . . . . . . . . 116
Key-operated switch for front passenger's
airbag . . . . . . . . . . . . . . . . . . . . . . . . . 120
Side airbags . . . . . . . . . . . . . . . . . . . . . 118
Triggering . . . . . . . . . . . . . . . . . . . . . . 116
Warning lamp . . . . . . . . . . . . . . . . . . . . 17
Alterations to the vehicle . . . . . . . . . . . . . 174
Alternator . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Warning lamp . . . . . . . . . . . . . . . . . . . . 18
Anti-dazzle interior mirror . . . . . . . . . . . . . 63
Anti-freeze additive . . . . . . . . . . . . . . . . . 159
Anti-knock properties of petrol . . . . . . . . 152
Anti-lock brake system . . . . . . . . . . . . . . . 132
Warning lamp . . . . . . . . . . . . . . . . . . . . 19
Anti-theft alarm . . . . . . . . . . . . . . . . . . . . . . 48
Interior monitor . . . . . . . . . . . . . . . . . . . 49
Tow-away protection . . . . . . . . . . . . . . 49
Anti-theft wheel bolts . . . . . . . . . . . . . . . . 182
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Audi magnetic ride . . . . . . . . . . . . . . . . 16, 88
Description . . . . . . . . . . . . . . . . . . . . . . . 88
Warning lamp . . . . . . . . . . . . . . . . . . . . 16
Audi parking system . . . . . . . . . . . . . . . . . 85
Automatic car washes
SeeWashing . . . . . . . . . . . . . . . . . . . . 144
Automatic headlight control . . . . . . . . . . . 63
Automatic headlights . . . . . . . . . . . . . . . . . 53
Defective . . . . . . . . . . . . . . . . . . . . . . . . 38
Average fuel consumption . . . . . . . . . . . . 22
Average speed . . . . . . . . . . . . . . . . . . . . . . 22Axle weights
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 198
BBattery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Charging . . . . . . . . . . . . . . . . . . . . . . . . 164
Disconnecting and connecting . . . . . 162
Long periods of non-use . . . . . . . . . . 162
Replacing . . . . . . . . . . . . . . . . . . . . . . . 162
Testing . . . . . . . . . . . . . . . . . . . . . . . . . 162
Winter conditions . . . . . . . . . . . . . . . . 162
Winter operation . . . . . . . . . . . . . . . . . 162
Battery voltage . . . . . . . . . . . . . . . . . . . . . . 37
Belt tensioners . . . . . . . . . . . . . . . . . . . . . 114
Bioethanol fuel . . . . . . . . . . . . . . . . . . . . . 152
Blower . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Brake system
Brake fluid . . . . . . . . . . . . . . . . . . . . . . 161
Brake light failure . . . . . . . . . . . . . . . . . 38
Brake pads worn . . . . . . . . . . . . . . . . . . 37
Brake servo . . . . . . . . . . . . . . . . . . . . . . 134
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Malfunction . . . . . . . . . . . . . . . . . . . . . . 35
Warning lamp . . . . . . . . . . . . . . . . . . . . 18
Bulb monitor . . . . . . . . . . . . . . . . . . . . . . . . 37
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Business equipment . . . . . . . . . . . . . . . . . 175CCapacities . . . . . . . . . . . . . . . . . . . . . . . . . 199
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