differential AUDI R8 2007 Owners Manual

Instruments and warning/indicator lamps19
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data sideways. Drive carefully to the nearest qualified workshop and
have the fault rectified.
Anti-lock brake system (ABS)

The warning lamp monitors the ABS and the electronic
differential lock (EDL).The warning lamp
 lights up for a few seconds when the ignition
is switched on and while the engine is being started. The lamp goes
out again once the system has run through an automatic test
sequence.
There is a fault in the ABS if:
•
the warning lamp
 does not light up when the ignition is
switched on,
•
the warning lamp does not go out again after a few seconds,
•
the warning lamp lights up when the vehicle is moving.
The vehicle can still be braked in the normal way (except that the
ABS control function is out of action). Please take the vehicle to a
qualified workshop as soon as possible. For further information on
the ABS ⇒page 132.
If a fault occurs in the ABS, the ESP warning lamp will also light up.
Fault in the main brake system
If the ABS warning lamp
 lights up together with the brake
warning lamp
 ⇒page 35, this indicates a fault in the ABS func-
tion, and possibly a malfunction in the main brake system as well
⇒.
If there is a malfunction in the brake system the symbol
 will light
up in the instrument cluster. Please refer to ⇒page 18.Fault on the electronic differential lock (EDL)
The EDL works in conjunction with the ABS. If a malfunction should
occur in the EDL, this is indicated by the ABS warning lamp
.
Please take the vehicle to a qualified workshop as soon as possible.
For further information on the EDL ⇒page 132.
WARNING
•
If the brake warning lamp
 lights up together with the ABS
warning lamp
, the brake fluid level in the reservoir is too low
and this may cause an accident. Stop the vehicle and do not drive
on. You should obtain professional assistance.
•
If the brake fluid level is OK, the fault in the brake system may
have been caused by a failure of the ABS control function. As a
result the rear wheels can lock relatively easily when braking. This
could cause the tail of the vehicle to skid sideways. Drive carefully
to the nearest qualified workshop and have the fault rectified.
WARNING (continued)
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Intelligent technology 132Intelligent technologyElectronic stabilisation program (ESP)The Electronic Stabilisation Program increases the car's
stability.Description
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 (ESP). The ESP is designed to
enhance the control over the vehicle in critical handling situations,
such as when accelerating and cornering. It reduces the tendency to
skid at all speeds under all road conditions and improves the
stability and roadholding of the vehicle. ESP helps the car to start
moving, accelerate and climb a gradient in slippery conditions
where this may otherwise be difficult or even impossible. The ESP is
switched on automatically when the engine is started. It should
normally be left switched on at all times for optimum car stability.
Driving situations
If the car is oversteering (rear wheels losing grip first) the ESP
mainly brakes the outside front wheel; if the car is understeering
(front wheels losing grip first), the ESP brakes the inside rear wheel
and possibly also other wheels. This automatic brake application is
accompanied by characteristic noises.If, when braking, 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 pressure in the brake line to this wheel. The driver is made aware
of this control process by a pulsating of the brake pedal and accom-
panying noise. 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. However, the ABS will not neces-
sarily guarantee shorter stopping distances in all conditions. For
instance, on loose gravel or fresh snow on top of an icy surface the
stopping distance with ABS may even be slightly longer.
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 electronic differential lock (EDL) applies the brake to slow down
the spinning wheel so that more of the power is directed to the
other wheels. This function is active up to about 100 km/h. The brake
system will make noises while it is working.
If one wheel has less grip and starts spinning (for instance, if one of
the driven wheels is on ice), press the accelerator hard until the car
starts moving.
If the wheels start to spin, the traction control system (ASR) auto-
matically reduces the engine torque to match the amount of grip
available.
Activating the sport mode
If required (for instance if you want to use the launch control), you
can switch the traction control system (ASR) and electronic stabili-
sation program (ESP) to sport mode by pressing the button
once. The ESP warning lamp will light up and the message ASR off
will appear in the driver information system display. The amount of
wheel slip is regulated according to the road speed. You should only
use this feature if your driving ability and traffic conditions allow
you to do so safely.
Fig. 110 Centre
console with ESP
switch
ESP
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Index 204
Red symbols . . . . . . . . . . . . . . . . . . . . . 33
Service interval display . . . . . . . . . . . . 21
Setting . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Yellow symbols . . . . . . . . . . . . . . . . . . . 33
Driver messages . . . . . . . . . . . . . . . . . . . . . 34
Driving abroad . . . . . . . . . . . . . . . . . . . . . 138
Headlights . . . . . . . . . . . . . . . . . . . . . . 138
Unleaded fuel . . . . . . . . . . . . . . . . . . . 138
Driving away on a slope
hill hold assist . . . . . . . . . . . . . . . . . . . . 84
Driving safety . . . . . . . . . . . . . . . . . . . . . . 103
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . 22
Dry sump lubrication system . . . . . . . . . 137
Dust filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
EElectric fuses . . . . . . . . . . . . . . . . . . . . . . . 190
Electric seat adjustment
SeeSeat adjustment . . . . . . . . . . . . . . . 68
Electric voltage . . . . . . . . . . . . . . . . . . . . . . 14
Electric windows . . . . . . . . . . . . . . . . . . . . 50
Central locking system . . . . . . . . . . . . . 43
Possible malfunctions . . . . . . . . . . . . . 50
Electrical socket . . . . . . . . . . . . . . . . . . . . . 72
Electrical system . . . . . . . . . . . . . . . . . . . . . 18
Electronic differential lock . . . . . . . . . . . 132
Warning lamp . . . . . . . . . . . . . . . . . . . . 19
Electronic immobiliser . . . . . . . . . . . . . . . . 42
Electronic stabilisation program . . . . . . 132
Emission control systems . . . . . . . . . . . . 138
Emissions . . . . . . . . . . . . . . . . . . . . . . . . . 196Engine compartment
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . 58
Safety notes . . . . . . . . . . . . . . . . . . . . . 155
Engine compartment layout . . . . . . . . . . 156
Engine data
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 198
Engine hood
SeeEngine lid . . . . . . . . . . . . . . . . . . . 155
Engine lid
Closing . . . . . . . . . . . . . . . . . . . . . . . . . 156
Opening . . . . . . . . . . . . . . . . . . . . . . . . 155
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Checking oil level . . . . . . . . . . . . . . . . 157
Consumption . . . . . . . . . . . . . . . . . . . . 157
Dry sump lubrication system . . . . . . . 137
LongLife Service . . . . . . . . . . . . . . . . . 157
Temperature gauge . . . . . . . . . . . . . . . 10
Topping up . . . . . . . . . . . . . . . . . . . . . . 158
See alsoPerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 198
Engine oil capacity
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 198
Engine oil pressure (too low) . . . . . . . . . . 36
Engine oil sensor defective . . . . . . . . . . . . 37
Environmental compatibility . . . . . . . . . . 139
Environmental tips
Filling the tank . . . . . . . . . . . . . . . . . . . 153
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . 156
Warming up the engine . . . . . . . . . . . . 82
EPC warning lamp . . . . . . . . . . . . . . . . . . . 16ESP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
See alsoElectronic stabilisation program
132
Ethanol fuel . . . . . . . . . . . . . . . . . . . . . . . . 152
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 64
FFilling the tank . . . . . . . . . . . . . . . . . . . . . 152
Releasing the tank flap manually . . . 154
First-aid kit . . . . . . . . . . . . . . . . . . . . . . . . . 178
Floor mats . . . . . . . . . . . . . . . . . . . . . . . . . 107
Foreign countries
SeeDriving abroad . . . . . . . . . . . . . . . 138
Four-wheel drive . . . . . . . . . . . . . . . . . . . . 136
Front passenger
SeeSitting position . . . . . . . . . . . . . . . 105
Fuel
Capacity . . . . . . . . . . . . . . . . . . . . . . . . 199
Consumption . . . . . . . . . . . . . . . . . . . . 196
Current consumption . . . . . . . . . . . . . . 22
Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . 152
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 13
Fuel level low . . . . . . . . . . . . . . . . . . . . . 36
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . 152
Fuel consumption . . . . . . . . . . . . . . . . . . . 196
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Fuel range . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fuses
Changing . . . . . . . . . . . . . . . . . . . . . . . 190
Fuse list . . . . . . . . . . . . . . . . . . . . . . . . 190
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Index 208Tyre pressure . . . . . . . . . . . . . . . . . . 167, 172
Tyre pressure monitoring system . . . . . 172
Warning lamp . . . . . . . . . . . . . . . . . 16, 36
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . 178
Tyres
Inflation pressures . . . . . . . . . . . 167, 172
Tread wear indicators . . . . . . . . . . . . . 168
Tyre pressure monitoring system . . . 172
Tyre service life . . . . . . . . . . . . . . . . . . 167UUniversal transmitter . . . . . . . . . . . . . . . . . 95
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . 152
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Central locking system . . . . . . . . . . . . . 44VVehicle battery
SeeBattery . . . . . . . . . . . . . . . . . . . . . . 162
Vehicle data sticker . . . . . . . . . . . . . . . . . 196
Vehicle identification data . . . . . . . . . . . . 196
Vehicle identification number . . . . . . . . . 196
Vehicles with automatic gearshift
SeeR tronic . . . . . . . . . . . . . . . . . . . . . . 90
Ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Voltmeter display . . . . . . . . . . . . . . . . . . . . 14
WWarning lamps . . . . . . . . . . . . . . . . . . . . . . 15
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Alternator . . . . . . . . . . . . . . . . . . . . . . . . 18
Anti-lock brake system . . . . . . . . . . . . . 19
Audi magnetic ride . . . . . . . . . . . . . . . . 16
Brake system . . . . . . . . . . . . . . . . . . . . . 18
Clutch overheating . . . . . . . . . . . . . . . . 38
Electronic differential lock . . . . . . . . . . 19
Electronic stabilisation program . . . . . 16
Emission control system . . . . . . . . . . . 17
Engine management (EPC) . . . . . . . . . . 16
No R gear . . . . . . . . . . . . . . . . . . . . . . . . 38
Rear spoiler . . . . . . . . . . . . . . . . . . . . . . 17
Red symbols in central display . . . . . . 33
Seat belt . . . . . . . . . . . . . . . . . . . . . . . . . 18
Selector lever defective . . . . . . . . . . . . 38
Tyre pressure monitoring system . 16, 36
Yellow symbols in central display . . . . 33
Warning triangle . . . . . . . . . . . . . . . . . . . . 178
Washer fluid level low . . . . . . . . . . . . . . . . 37
Washing . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Waxing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Weights
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 198
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . 170
Wheel imbalance . . . . . . . . . . . . . . . . . . . 167
Wheels . . . . . . . . . . . . . . . . . . . . . . . . 147, 166
Rims . . . . . . . . . . . . . . . . . . . . . . . . . . . 166Windows
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 146
Defrosting . . . . . . . . . . . . . . . . . . . . . . . 78
De-icing . . . . . . . . . . . . . . . . . . . . . . . . 146
Windows (electric)
SeeElectric windows . . . . . . . . . . . . . . 50
Windscreen washer fluid . . . . . . . . . . . . . 164
Windscreen wipers . . . . . . . . . . . . . . . . . . . 59
Changing blades . . . . . . . . . . . . . . . . . . 62
Service position . . . . . . . . . . . . . . . . . . . 61
Winter conditions
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 162
Care of vehicle . . . . . . . . . . . . . . . . . . . 144
Cooling system . . . . . . . . . . . . . . . . . . 159
Defrost function . . . . . . . . . . . . . . . . . . 78
De-icing windows . . . . . . . . . . . . . . . . 146
Snow chains . . . . . . . . . . . . . . . . . . . . . 171
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Windscreen washer . . . . . . . . . . . . . . . 164
Winter operation
Seat heating (air conditioner) . . . . . . . 80
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . 170
Wiper and washer system . . . . . . . . . . . . . 59
Wiper blades
SeeWindscreen wipers . . . . . . . . . . . . . 62
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