Audi 4.2-liter V8 FSI Manuale Utente

Service TrainingThe 2008 Audi R8 Vehicle IntroductionSelf-Study Program 99B703

6BodyAudi Space Frame (ASF)The body design of the R8 incorporates Audi Space Frame technology; the result is an extremely rigid, lightweight aluminum

7Body

8BodyUnderbodyAlways use the lifting position mounting points specified above. Do not position jack or lift at any other point. Numerous ventilation

9Notes

10Occupant ProtectionOccupant Protection System in the Audi R8The Audi R8 is a high-end luxury sports car. The occupant protection system is in keep

11Occupant ProtectionE24 – Driver’s Safety Belt SwitchE25 – Front Passenger’s Safety Belt Switch G179 – Driver’s Side Airbag Crash Sensor G180 – F

12Occupant ProtectionAirbag Control Module J234The electronics integrated into the Airbag Control Module detect and evaluate vehicle acceleration and

13Occupant ProtectionData TransferAirbag Control Module J234 is a member of the Powertrain CAN-bus.J234 relays information over the Powertrain CAN-bus

14EngineTechnical FeaturesThe following are some commonalities between the RS4 engine and the R8 engine:– Fuel Straight Injection.– Roller Cam Rocke

15Engine4.2L V8 FSI EngineTechnical DataReferenceFor more detailed information about the 4.2L FSI engine, refer to the Audi 4.2-liter V8 FSI Engine,

Audi of America, Inc.Service TrainingPrinted in U.S.A.Printed 9/2007Course Number 99B703©2007 Audi of America, Inc.All rights reserved. All informatio

16EngineCrankcase VentilationThe crankcase is ventilated through both cylinder heads. A large settling chamber is located in the oil tank. The tank ac

17EngineOil SystemThe R8 engine uses a dry sump lubrication system. This system includes an external oil pump, cooler, and tank. There are a few adv

18EngineServiceThere are four screws which must be removed in order to drain the oil from the engine; three from the oil pan, one from the oil tank.

19EngineCooling SystemSupply circuitReturn circuitRadiator, LeftAuxiliary Water PumpCoolant Equalization TankOil CoolerRadiator, RightCoolant PumpRad

20EngineThrottle Valve Control ModulesIntake Manifold FlapsMass Air Flow SensorsAir IntakeThe air intake system of the R8 engine begins at both the ri

21Notes

22EngineFuel SystemReferenceFor a description of the system’s operating mode, refer to SSP 924603 - The Audi 4.2L V8 FSI Engine. The main difference

23EngineFuel (Rail) 2Fuel Pressure Sensor G247To Fuel Injectors N83 - N86(Cylinders 5-8)Pressure Limiting Valve (136 Bar)Fuel (Rail) 1Fuel Injectors N

24EngineExhaust SystemThe Audi R8 has a very unique downstream exhaust design. During the development of the exhaust system, special emphasis was plac

25Notes

iTable of ContentsIntroduction . . . . . . . . . . . . . . . . . . . . . . . . . .1Body . . . . . . . . . . . .

26EngineEngine Management System OverviewSensorsMass Air Flow (MAF) Sensor G70Intake Air Temperature (IAT) Sensor G42Throttle Position (TP) Sensor G79

27EngineModule (ECM) J623Engine ControlActuatorsFuel Pump Control Module J538Transfer Fuel Pump (FP) G6Ignition Coils 1-4 with Power Output StageN70,

28EngineControl Module CommunicationsThe Engine Control Module J623 (ECM, master) computes and controls the signals from the actuators for cylinder ba

29Notes

30Transmissions/DrivelineTransmission and DrivelineThe Audi R8 is equipped a 6-speed transmission (manual or R-tronic) which delivers a torque output

31Transmissions/DrivelineTransmissionsThe manual and R-tronic units are fully synchronized 6-speed transmissions, are internally identical, and have a

32Transmissions/DrivelineTransmission Cooling SystemThe manual and R-tronic transmissions use a thermostatically controlled cooling system. The syste

33Transmissions/DrivelineManual ShiftOn manual transmission vehicles, shifting is done through a cable operated linkage system after pushing the clutc

34Transmissions/DrivelineR-tronic ShiftThe gears in the R-tronic transmission shift without a mechanical connection to the selector lever. Transmissio

35Transmissions/DrivelineR-tronic TransmissionPressure ReservoirHydraulic UnitHydraulic PumpThe R-tronic transmission has an electro-hydraulic unit wh

iiNotes

36Transmissions/DrivelineRear DifferentialThe mid-engine design of the R8 required a new quattro drive concept. The transmission and rear differentia

37Transmissions/DrivelineViscous CouplingPower to the front wheels is through a two-piece, center bearing supported driveshaft. The driveshaft runs fr

38Running GearOverviewThe Audi R8 has four-link independent suspension at both sets of wheels. High performance shock absorbers contribute to the agil

39Running GearFront AxleRear Axle– Double Transverse Control Arm Axle.– Steel Springs with Hydraulic Shock Absorbers.– Hydraulic Rack and Pinion St

40Running GearUnique brake components for the Audi R8 include 8-piston, 4-pad front calipers; 4-piston, 2-pad rear calipers; and separate mechanically

41Running GearAudi Magnetic RideDampening AdjustmentButton E387Electronic DampingControl Module J250Dampening AdjustmentIndicator Lamp K189The Audi R8

42Running GearInstrument Cluster CAN Powertrain CAN J285 Instrument Cluster Control Module J533 Data Bus On Board Diagnostic Interface J502 Tire Pres

43Notes

44ElectricalTopology and NetworkingCAN DriveCAN Infotainment CAN ComfortCAN CombiCAN Diagnostics CAN BusLIN BusSub-Bus SystemPanasonic BusEngine Contr

45ElectricalCAN DriveCAN Infotainment CAN ComfortCAN CombiCAN Diagnostics CAN BusLIN BusSub-Bus SystemPanasonic BusA/C Pressure/Temperature Sensor G

1IntroductionAudi made motor sport history with the Audi R8 race car - a formula that stirred the enthusiasm of people throughout the world. This veh

46ElectricalIn the Audi R8, the battery is located at the front in the luggage compartment, behind the luggage compartment cover. The battery termina

47Electrical– 2 Main Fuse Panels (Right A-Pillar Footwell)– Fuse Box (Passenger Footwell)– Additional Fuse Panel (Under Right Rear Window Shelf)–

48ElectricalFront LightsIndicatorMain Beam and Low Beam Headlights Bi-xenonDaytime Running Light or Navigation Light (Dimmed)The Audi R8 is equipped w

49ElectricalThe tail lights, brake lights, and indicators of the Audi R8 are equipped with LEDs. The tail lights use 40 LEDs. The LEDs are lit more

50ElectricalWiper SystemThe wiper system consists of two wiper motors with integrated electronics.Onboard supply control module J519 is part of the Co

51ElectricalStandard Audi Sound 140W (5 channels)- 4 loudspeakers in the doors- 2 tweeters in a mirror triangle- CenterInfotainmentOptional Bang &

52ElectricalInfotainment Antennas1. Antenna Amplifier R112 / FM22. Satellite Antenna R170 / SDARS3. Antenna for Radio and Telephone R514. Antenna A

53Notes

54Air ConditioningOverviewThe Audi R8’s automatic air conditioning system is configured as a single-zone air conditioning system. The R8 has only one c

55Air ConditioningClimatronic Control Module J255The setpoint for the temperature flap is set using the “Temperature” rotary knob. The rotary knob is i

2IntroductionAudi NeckarsulmThe Audi R8 is assembled in Neckarsulm, Germany. Vehicles are produced largely by hand with a small-scale production of 2

56Air ConditioningVarious sensors provide input to Climatronic Control Module J255. Outside Air Temperature Sensor G17 is located in front of the con

57Notes

58Self-Study ProgramsSSP 991703 - The 2008 AudiTT Vehicle Introduction– Body– Occupant Protection– Engine– Suspension System– Electrical System– Air C

Knowledge AssessmentiiiAn on-line Knowledge Assessment (exam) is available for this SSP. The Knowledge Assessment may or may not be required for Certi

99B703All rights reserved. Technical specifications subject to change without notice. Audi of America, Inc. 3800 Hamlin Road Auburn Hills, Michigan 4

3Notes

4BodyDimensional OverviewUnladen Weight 3605 lb (1635 kg) - with Manual Transmission3616 lb (1640 kg) - with R-tronic TransmissionPermissible Laden We

5BodyBody DimensionsLength 174 in (4431 mm)Width 74.9 in (1904 mm)Height 49.1 in (1249 mm)Wheelbase 104 in (2650 mm)Front Track Width 64.2 in (1632 mm