2007 AUDI R8 suspension

Instruments and warning/indicator lamps 16
Note•
Yellow symbols are accompanied by one warning chime. The
function indicated should be checked as soon as possible.
•
A red symbol is accompanied by three warning chimes. The
symbol will keep flashing until the fault is corrected.
Applies to vehicles: with Audi magnetic rideAudi magnetic ride

This warning lamp monitors the damping effect of the
shock absorbers.The warning lamp
 lights up when the ignition is switched on.
Note
If the warning lamp lights up while the vehicle is moving, this indi-
cates a vehicle damping malfunction. The suspension should be
checked immediately by a qualified workshop.Applies to vehicles: with tyre pressure monitoring systemTyre pressure monitoring system

Th e t y re p re s s u re s h o u l d b e c o rre c t e d as s o o n as p o s s i b l e
if it is too low.If the
 symbol appears, the tyre pressure on at least one
of the wheels is too low.–Stop the vehicle.
– Check the tyre(s).
– Adjust the tyre pressure ⇒page 167.
For more detailed information on the tyre pressure monitoring
system please refer to ⇒page 172.Engine management

This warning lamp monitors the engine management
system.The
 warning lamp (Electronic Power Control) lights up when the
ignition is switched on to show that the lamp is working properly.Note
If the warning lamp lights up while the vehicle is moving, this indi-
cates a fault in the engine management system. The engine should
be serviced by a qualified workshop without delay.Electronic stabilisation program (ESP)

This warning lamp monitors the electronic stabilisation
program.The warning lamp
 has the following functions:
•
It flashes when the ESP or traction control system (ASR) inter-
venes while the vehicle is in motion.
•
It lights up when the ignition is switched on and should go out
again after about 2 seconds. This signals that the lamp is working
properly.
•
It will light up continuously if there is a malfunction in the ESP.
•
It will light up continuously if the ESP is switched off.

Seat belt warning lamp
⇒page 18

Fault in brake system / handbrake is
applied
⇒page 18

Anti-lock brake system (ABS)
⇒page 19
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Driving 88Applies to vehicles: with cruise control systemSwitching off cruise control temporarily– Press the brake pedal, or
– Press the clutch pedal, or
– Press the lever ⇒page 87, fig. 75 to position (click
stop not engaged).The speed stored at this point remains in the memory if the system
is only temporarily deactivated.
To resume the programmed cruising speed, release the clutch or
brake pedal and pull the lever to position .
If no speed was stored when the system was temporarily deacti-
vated, a new speed can be set as follows: drive at the desired
cruising speed and briefly press button ⇒page 87, fig. 75 (SET).
WARNING
Do not resume the programmed cruising speed if this is too high
for the traffic conditions - this can cause accidents.Applies to vehicles: with cruise control systemSwitching off cruise control– Press the lever A ⇒page 87, fig. 75 to position (click
stop engaged).The stored speed will be deleted once the ignition is switched off.
Note
Always switch off the cruise control system completely after each
journey. When beginning a new journey, the speed must be reset
⇒page 87.
Applies to vehicles: with Audi magnetic rideAudi magnetic rideThe damping effect of the shock absorbers can be
adjusted according to the driver's requirements, and will
adapt automatically to suit the driving conditions.– Press the switch ⇒fig. 76 to activate or deactivate the
sport driving mode.Audi magnetic ride is an electronically controlled damping system.
By means of control processes going on in the background it assists
the driver and adapts automatically to particular situations when
driving. The adaptive damping varies the stiffness of the shock
absorbers to suit individual requirements. For example, if the driver
selects the comfort setting, the suspension damping is relatively
soft and only becomes firmer when required, such as in a corner or
under braking.
Normal driving mode
Select the normal setting for comfort-oriented suspension charac-
teristics.
AA
A2
AA
A1
ABA2
Fig. 76 Centre console:
Switch for Audi
magnetic ride
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Driving89
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Sport driving mode
Select the sport setting for performance-oriented suspension char-
acteristics. The diode in the switch
 will light up to indicate that the
sport mode is on.
Note
The warning lamp
 lights up in the instrument cluster if a malfunc-
tion occurs. Drive to the nearest qualified workshop as soon as
possible and have the fault corrected.
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Wheels and tyres167
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Tyre service life
Correct inflation pressures and sensible driving habits
will increase the service life of your tyres.– Check the tyre pressures at least once a month.
– The tyre pressures should only be checked when the
tyres are cold. The slightly raised pressures of warm tyres
must not be reduced.
– The pressures must be altered to suit major changes in
the load being carried.
– Avoid fast cornering and hard acceleration.
– Inspect the tyres for irregular wear from time to time.The service life of your tyres depends on the following factors:
Tyre pressure
Under-inflation or over-inflation will reduce the life of the tyres
considerably and also impair the car's handling. The inflation pres-
sures are listed on a sticker on the driver's door pillar.
Correct inflation pressures are very important, especially at high
speeds. The pressures should therefore be checked at least once a
month and before starting a journey.
Driving habits
Fast cornering, heavy acceleration and hard braking (squealing
tyres) all increase tyre wear.
Wheel balancing
The wheels on new vehicles are balanced. However, various factors
encountered in normal driving can cause them to become unbal-
anced, which results in steering vibration.Unbalanced wheels should be rebalanced, as they otherwise cause
excessive wear on steering, suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted or if a tyre is repaired.
Incorrect wheel alignment
Incorrect wheel alignment causes excessive tyre wear, impairing the
safety of the vehicle. If you notice excessive tyre wear, contact your
Audi R8 dealer.
WARNING
•
Always adapt the tyre pressure accordingly when the vehicle
load changes.
•
Under-inflated tyres flex more and can overheat at continuous
high speeds. This can cause tread separation and tyre blow-out,
which could result in an accident. Always observe the recom-
mended tyre pressures.For the sake of the environment
Under-inflated tyres will increase the fuel consumption.
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Wheels and tyres169
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Understanding the tyre designations makes it easier to choose the
correct tyres. For example, radial ply tyres have the following tyre
designations marked on the sidewall:
235 / 35 R 18 91 Y
This contains the following information:
The manufacturing date is also indicated on the tyre sidewall
(possibly only on the inner side of the wheel):
DOT ... 1010...
means, for example, that the tyre was produced in the 10th week of
2010.
Please note that with some types of tyres, the actual tyre size can
differ from the nominal size marked on the tyre (for instance 235/35
R 18 91 Y), and there may be significant differences in the contours
of the tyres, even though the tyres are marked with the same
nominal size designation. When replacing the tyres, it is therefore
important to make sure that the actual size of the new tyres does
not exceed the dimensions of the factory-approved makes of tyre.
Failure to observe this requirement can affect the clearance needed
for the tyres. This could result in contact between the tyres and
suspension components or bodywork. The brake lines could also be
damaged and the vehicle's safety could be severely impaired ⇒.
When using tyres with the maximum permitted nominal dimen-
sions, this can also void the vehicle's registration.If you use tyres that are approved by Audi you can be sure that the
actual tyre dimensions will be correct for your vehicle. If you decide
to fit a different type of tyre, you must obtain the appropriate manu-
facturer's certificate from the tyre retailer to confirm that the tyres
are suitable for your vehicle. Keep this certificate in a safe place.
Your local Audi R8 dealer will be able to advise you on which tyres
may be fitted to your vehicle.
On vehicles with four-wheel drive, all four tyres must always be
fitted with tyres of the same type, make and tread pattern, as other-
wise the driveline can be damaged by continuous variations in the
wheel speeds. For the same reason, only use a spare wheel with the
same tyre dimensions as the normal road wheels.
It is not permissible to use a wheel which is of a type different to
those already fitted on the vehicle (for instance when using winter
tyres) - even if you have a puncture.
It is best to have all servicing of wheels and tyres performed by a
qualified workshop. They have the necessary special tools and
replacement parts, trained personnel and facilities for disposing of
the old tyres.
WARNING
•
It is very important to ensure that the tyres you have chosen
have adequate clearance. When selecting replacement tyres, do
not rely entirely on the nominal tyre size marked on the tyre; with
some makes of tyre the effective tyre size can differ significantly
from the nominal dimensions, even though the tyres have the
same size designation. Inadequate tyre clearance can result in
damage to the tyres or the vehicle, causing a serious safety risk. It
may also invalidate the vehicle's type approval for use on public
roads.
•
Avoid running the car on tyres that are more than 6 years old.
If you have no alternative, you should drive slowly and with extra
care at all times.
235
Tyre width in mm
35
Height/width ratio in %
R
Tyre construction: Radial
18
Rim diameter in inches
91
Load rating code
Y
Speed rating code letter
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Accessories and modifications to the vehicle 174Accessories and modifications to the vehicleAccessories, replacement parts and repairsIt is best to consult an authorised Audi R8 dealer before
purchasing accessories and replacement parts or having
any repairs carried out.Your car is designed to offer a high standard of active and passive
safety. For this reason, we recommend that you ask an Audi R8
dealer for advice before fitting accessories or replacement parts.
This is also very important if body repairs are required. Audi R8
dealers have full information on the manufacturer-approved repair
methods and can recommend suitable accessories and spare parts.
They can also give advice regarding official requirements for the
vehicle.
We recommend you to use only Audi accessories and Audi Genuine
parts®. Audi has tested these parts and accessories for suitability,
reliability and safety. Audi R8 dealers have the necessary experience
and facilities to ensure that the parts are installed properly.
Although the market is constantly scrutinised, Audi cannot judge or
assume responsibility for the reliability, safety and suitability of
non-genuine products - even though in some instances, these parts
may have been approved by an officially recognised technical
testing authority or accompanied by an official approval certificate.
Any retro-fitted equipment which has a direct effect on the vehicle
and/or the way it is driven (e.g. cruise control system or electroni-
cally-controlled suspension) must be approved for use in your
vehicle and bear the e mark (the European Union's approval
symbol).
If any additional electrical components are fitted which do not serve
to control the vehicle itself (for instance a refrigerator box, laptop or
ventilator fan, etc.), these must bear the CE mark (manufacturer
conformity declaration in the European Union).
WARNING
Never attach accessories (such as cup holders or telephone
brackets) to the surfaces covering the airbag units or the areas
around the airbags: this could cause injury if the airbag is trig-
gered.
Note
•
Since the Audi R8 has an aluminium body, all servicing, repairs
or other work on the car body must be carried out by an Audi R8
workshop or a qualified workshop working to the specifications of
the Audi factory. This ensures that the necessary repairs or servicing
are performed properly and that only Audi Genuine parts® are
installed on your vehicle. Use of non-genuine replacement parts,
equipment or accessories on your Audi R8, or repair of the vehicle
by unqualified persons, may result in serious damage to your car
(possibly including corrosion).
•
The manufacturer cannot be held liable for damage which occurs
as a result of failure to comply with these stipulations, and such
damage is not covered under warranty.
ModificationsModifications must always be carried out according to
our specifications.Unauthorised modifications to the electronic components or soft-
ware in the vehicle may cause malfunctioning. Due to the way the
electronic components are linked together in networks, other
systems may be affected by the faults. This can seriously impair
safety, lead to excessive wear of components, and also invalidate
the type approval for your vehicle.
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Performance, weights and dimensions 198Performance, weights and dimensionsR8 4.2 quattroEngine data
Performance figures
WeightsEngine oil
MG = Manual gearbox / AG = Automatic gearbox (R tronic)
1) With slight loss of powerDimensions1) The height of the vehicle depends on the tyres and suspension.
Take care not to damage low-mounted parts of the car (such as the
spoiler or exhaust system) on steep ramps, uneven road surfaces or
roadside kerbs, etc.
Take particular care if the car has lowered (sports) suspension or if
it is fully laden.
Power output
309 kW at 7800 rpm
Maximum torque
430 Nm at 4500 to 6000 rpm
Cylinders, capacity
8 cylinders, 4163 cm
3
Valves per cylinder
4
Bore
mm
84.5
Stroke
mm
92.8
Compression ratio
12.5:1
Firing order
1-5-4-8-6-3-7-2
Fuel
Super Plus unleaded 98 RON or
premium unleaded not less than
95 RON
1)
Maximum speed
km/h
301
Acceleration from 0 - 100 km/h
sec.
4.6
Acceleration from 0 - 200 km/h
sec.
14.9
Gross vehicle weight
kg
MG = 1860
AG = 1865
Kerb weight (unladen weight)
kg
MG = 1560
AG = 1565
Maximum front axle weight
kg
MG = 890
AG = 890
Maximum rear axle weight
kg
MG = 1050
AG = 1055
LongLife Service
VW 504 00
Inspection Service
VW 502 00, VW 504 00
Engine oil capacity
(including filter change)
approx. 10 litres
Length
mm
4431
Width
mm
1904
Width across mirrors
mm
2029
Height, unladen
1)
mm
1252
Turning circle diameter
m
11.80
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