Audi R8 2008 Service Training Manual
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Audi R8 2008 Service Training Manual

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Service Training
The 2008 Audi R8
Vehicle Introduction
Self-Study Program 99B703

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Summary of Contents for Audi R8 2008

  • Page 1 Service Training The 2008 Audi R8 Vehicle Introduction Self-Study Program 99B703...
  • Page 2 Audi of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice.

  • Page 3: Table Of Contents

    Table of Contents Introduction . . . . . . . . . . . . . . . . . . . . . . . . . .1 Body .
  • Page 4 Notes...

  • Page 5: Introduction

    Introduction Audi R8 Overview Audi made motor sport history with the Audi R8 race Some main features of the Audi R8 include the following: car - a formula that stirred the enthusiasm of people – Audi Space Frame ASF. throughout the world. This vehicle has now found its –...
  • Page 6 Introduction Audi Neckarsulm The Audi R8 is assembled in Neckarsulm, Germany. Vehicles are produced largely by hand with a small-scale production of 20 vehicles per day. Over 250 employees with a high level of workforce qualification, skill, and in-depth experience work at the R8 production facility.
  • Page 7 Notes...

  • Page 8: Body

    Body Dimensional Overview The luggage compartment of the Audi R8 accommodates almost 3.5 cu. ft. (DIN) and approximately 3.2 cu. ft. (DIN) of additional space is provided behind the seats. Weights Unladen Weight 3605 lb (635 kg) - with Manual Transmission...
  • Page 9 Body Body Dimensions Length 74 in (443 mm) Width 74.9 in (904 mm) Height 49. in (249 mm) Wheelbase 04 in (2650 mm) Front Track Width 64.2 in (632 mm) Rear Track Width 62.7 in (558 mm)
  • Page 10 Body Audi Space Frame (ASF) The body design of the R8 incorporates Audi Space – Significant Weight Reduction. Frame technology; the result is an extremely rigid, – High Strength. lightweight aluminum body offering the following – High Static and Dynamic Torsional Rigidity.
  • Page 11 Body...
  • Page 12 The diffusers at front and rear enhance driving stability. above. Do not position jack or lift at any other point. An intact underbody is essential for correct function of Numerous ventilation points ensure sufficient cooling of the Audi R8. the engine and other components.
  • Page 13 Notes...

  • Page 14: Occupant Protection

    Occupant Protection Occupant Protection System in the Audi R8 The Audi R8 is a high-end luxury sports car. The The occupant protection system of the Audi R8 includes occupant protection system is in keeping with vehicle the following components and systems: driving dynamics and occupant safety needs.
  • Page 15 Occupant Protection E24 – Driver’s Safety Belt Switch J706 – Seat Occupied Recognition Control Module E25 – Front Passenger’s Safety Belt Switch K9 – Safety Belt Warning Lamp G79 – Driver’s Side Airbag Crash Sensor K75 – Airbag Malfunction Indicator Lamp (MIL) G80 –...
  • Page 16 Occupant Protection Airbag Control Module J234 The electronics integrated into the Airbag Control Module – Defined Triggering of the Second Front Airbag Stage. detect and evaluate vehicle acceleration and deceleration – Evaluation of All Input Information. in order to identify a vehicle collision. In addition –...
  • Page 17 CAN-bus to other control modules to unlock the vehicle doors, shut OFF the fuel pump, and activate the emergency flasher system. Reference For more information about the Occupant Protection System, refer to the 2008 Audi TT Vehicle Introduction, Self Study Program 99703.

  • Page 18: Engine

    Engine Technical Features The following are some commonalities between the RS4 Main features which are unique to the R8 engine include engine and the R8 engine: the following systems: – Fuel Straight Injection. – Dry Sump Lubrication. – Roller Cam Rocker Arms with Hydraulic Lifters. –...
  • Page 19 Engine 4.2L V8 FSI Engine Technical Data Reference For more detailed information about the 4.2L FSI engine, refer to the Audi 4.2- liter V8 FSI Engine, Self-Study Program 924603. 2000 Specifications Engine ID Letters Type V8 Engine with 90° V Angle...
  • Page 20 Engine Crankcase Ventilation The crankcase is ventilated through both cylinder heads. When blow-by gas has passed through the fine oil A large settling chamber is located in the oil tank. The separator, oil-free gas can then be delivered to the intake tank acts as a gravity oil separator.
  • Page 21 Engine Oil System The R8 engine uses a dry sump lubrication system. This The oil filter module is easily accessible, positioned in system includes an external oil pump, cooler, and tank. the inner V of the engine. The filter insert can be easily There are a few advantages of having an external pump: replaced without special tools.
  • Page 22 Engine Service There are four screws which must be removed in order to Do not loosen the two screws specified in the illustration drain the oil from the engine; three from the oil pan, one below. from the oil tank. Caution: Do not loosen or remove these screws, as this is the pressure oil connection of the oil pump.

  • Page 23: Cooling System

    Engine Cooling System Coolant Equalization Tank Auxiliary Water Pump Pump Radiator, Right Valve Unit Coolant Pump Oil Cooler Radiator, Center Radiator, Left Supply circuit Return circuit...

  • Page 24: Air Intake

    From there air rushes through both air filters, both Mass the right and left sideblades. Air Flow (MAF) sensors, both throttles, and the single length runners; past the manifold flaps; and into the combustion chambers. Audi R8 Intake System Mass Air Flow Sensors Throttle Valve Control...
  • Page 25 Notes...

  • Page 26: Fuel System

    Sensor G410 Leakage Line Reference For a description of the system’s operating mode, refer to SSP 924603 - The Audi 4.2L V8 FSI Engine. The main difference with this system is that it uses two high-pressure pumps. High Pressure Low Pressure...
  • Page 27 Engine Fuel Pressure Sensor G247 Fuel (Rail) 2 To Fuel Injectors N83 - N86 (Cylinders 5-8) Pressure Limiting Valve (136 Bar) Fuel (Rail) 1 Fuel Injectors N30 - N33 (Cylinders 1-4) Return Line Fuel Tank Transfer Fuel Pump (FP) G6 Fuel Pump (FP) Control Module J538...

  • Page 28: Exhaust System

    Engine Exhaust System The Audi R8 has a very unique downstream exhaust Another new aspect of this system is that the exhaust design. During the development of the exhaust system, from both banks enter the assembly from their special emphasis was placed on optimizing flow respective sides but then cross over through assembly resistance.
  • Page 29 Notes...
  • Page 30 Engine Engine Management System Overview Sensors Mass Air Flow (MAF) Sensor G70 Intake Air Temperature (IAT) Sensor G42 Throttle Position (TP) Sensor G79 Accelerator Pedal Position Sensor 2 G185 Engine Speed (RPM) Sensor G28 Knock Sensors (KS) 1+2 G61, G66 PowerTrain CAN Data Bus Fuel Pressure Sensor G247...
  • Page 31 Engine Actuators Fuel Pump Control Module J538 Transfer Fuel Pump (FP) G6 Ignition Coils 1-4 with Power Output Stage N70, N127, N291, N292 Fuel Metering Valve N290 Evaporative Emission (EVAP) Canister Purge Regulator Valve N80 Right Electro-Hydraulic Engine Mount Solenoid Valve N145 Intake Manifold Runner Control (IMRC) Valve N316 Starter Relay J53, Starter Relay 2 J695 Exhaust Flap Valve 1 N321...
  • Page 32 Engine Control Module Communications The Engine Control Module J623 (ECM, master) The slave control module acts as the misfire detector for computes and controls the signals from the actuators each of the eight cylinders. It also processes the signal for cylinder bank . from the Engine Speed (RPM) Sensor G28.
  • Page 33 Notes...

  • Page 34: Transmissions/Driveline

    Transmissions/Driveline Transmission and Driveline The Audi R8 is equipped a 6-speed transmission (manual The difference between the two is the manual system or R-tronic) which delivers a torque output of up to 443 uses a clutch pedal, clutch master cylinder, and lines to Lb-ft (600 Nm).
  • Page 35 Transmissions/Driveline Transmissions The manual and R-tronic units are fully synchronized 6- The gear oil of the transmission requires no regular speed transmissions, are internally identical, and have a maintenance. Either transmission can be removed and torque output of up to 443 Lb-ft (600 Nm). installed without removing the engine.
  • Page 36 Transmissions/Driveline Transmission Cooling System The manual and R-tronic transmissions use a Transmission cooling system capacity is 4.2 qt thermostatically controlled cooling system. The system (4.0L). Approximately 3.7 qt (3.5L) is circulated in the is comprised of a pump, thermostat, and cooler. transmission while 0.53 qt (0.5L) is in the cooler.
  • Page 37 Bowden cables. The length of the cables can be adjusted the clutch pedal. As with all current Audi models by means of two quick-release fasteners. The cables are equipped with manual transmissions, the clutch pedal spring loaded for easy length adjustment.
  • Page 38 Sport button located next to the selector lever. Selecting the S mode in the Audi R8 allows for even more sportily From the left position, the Automatic mode as well as tuned driving and shifting characteristics; shifting speed...
  • Page 39 Transmissions/Driveline R-tronic Transmission Hydraulic Pump Hydraulic Pressure Unit Reservoir The R-tronic transmission has an electro-hydraulic A pump driven by an electric motor runs for a few unit which is located on top and a pressure reservoir seconds after about three gear changes or after one and hydraulic pump which are on the right side.
  • Page 40 Transmissions/Driveline Rear Differential The mid-engine design of the R8 required a new quattro The limited-slip differential helps optimize balanced drive concept. The transmission and rear differential are handling. The locking ratio is 25 percent during mounted longitudinally behind the engine. Power flows acceleration and 45 percent while coasting.
  • Page 41 Transmissions/Driveline Viscous Coupling Power to the front wheels is through a two-piece, center The system was adapted to the mid-engine layout, with bearing supported driveshaft. The driveshaft runs from its ideal axle load distribution of 44:56 percent. The the transmission through the engine oil pan to the front viscous coupling directs between 0 and 35 percent of differential.

  • Page 42: Running Gear

    Running Gear Overview The Audi R8 has four-link independent suspension at The Audi magnetic ride adaptive damping system allows both sets of wheels. High performance shock absorbers the suspension settings to be individually preconfigured contribute to the agile handling and sporty road between Normal and Sport.

  • Page 43: Front Axle

    Running Gear Front Axle The front axle of the Audi R8 includes the following: – Double Transverse Control Arm Axle. – Alloy Wheels 8.5 J x 9. – Steel Springs with Hydraulic Shock Absorbers. – Tires 235/35. – Hydraulic Rack and Pinion Steering.

  • Page 44: Brake System

    Running Gear Brake System Unique Components Unique brake components for the Audi R8 include 8- Front and rear rotors are of a two-piece design and are piston, 4-pad front calipers; 4-piston, 2-pad rear calipers; cross-drilled for ventilation. The Audi R8 has an ESP...
  • Page 45 Running Gear Audi Magnetic Ride The Audi R8 utilizes “Audi magnetic ride,” a new semi- Audi magnetic ride improves driving dynamics and active suspension system with magneto-rheologically driving comfort for the following reasons: controlled dampers. The sport mode can be activated –...

  • Page 46: Tire Pressure Monitoring System

    Running Gear Tire Pressure Monitoring System The Audi R8 uses a revised version of the system used Reference on the Audi A6. It is a direct pressure measuring system For more detailed information about the with tire pressure sensors in the wheels.
  • Page 47 Notes...

  • Page 48: Electrical

    Electrical Topology and Networking Engine Control Module (ECM) J623 Engine Control Module 2 J624 Transmission Control Module J217 Selector Lever Electronic Damping Sensor System Control Module J250 Control Module J587 Airbag Control Module J234 ABS Control Module J104 ESP Sensor Unit G419 Steering Angle Sensor G85...
  • Page 49 Electrical Data Link Connector Instrument Cluster Control Module J285 Telephone Diagnostic Interface Transceiver For Data Bus J533 Driver’s Door Satellite Radio Control Module R146 J386 Passenger’s Door Digital Sound Control Module System Control J387 Module J525 Parking Aid Control Module J446 Fresh Air Blower Control Module...
  • Page 50 Electrical Battery In the Audi R8, the battery is located at the front To remove the battery, it is necessary to remove the in the luggage compartment, behind the luggage luggage compartment well cover and then the luggage compartment cover. The battery terminals are compartment well itself.

  • Page 51: Fuses And Relays

    Electrical Fuses and Relays Fuse Locations Relay Locations – 2 Main Fuse Panels (Right A-Pillar Footwell) – Vehicle Electrical System Control Module (Front Passenger Footwell) – Fuse Box (Passenger Footwell) – Additional Fuse Panel (Under Right Rear Window Shelf) – Additional Relay Panel (Right Rear Window Shelf) Main Fuse Panel - SD Fuse Box - B Additional Fuse Panel - C...

  • Page 52: Front Lights

    Electrical Front Lights The Audi R8 is equipped with Bi-xenon headlights. A 24-watt filament bulb (P24W Silver Vision) is used for Twelve LEDs run as daytime running lights or dimmed the indicator light. To replace the bulb, it is necessary as a navigation light.

  • Page 53: Rear Lights

    Electrical Rear Lights The tail lights, brake lights, and indicators of the Audi The reverse light is equipped with a conventional 2- R8 are equipped with LEDs. The tail lights use 40 LEDs. watt halogen lamp. The reverse lights can be replaced The LEDs are lit more intensely during braking.

  • Page 54: Wiper System

    Electrical Wiper System The wiper system consists of two wiper motors with The wiper control modules are integrated into the wiper integrated electronics. motors. Onboard supply control module J59 is part of the The wipers can be put into the service position using the Comfort CAN within the vehicle network.
  • Page 55 Electrical Infotainment Standard Audi Sound 140W (5 channels) Optional Bang & Olufsen Sound 465W (10 channels) - 4 loudspeakers in the doors - 2 tweeters in a mirror triangle - 4 loudspeakers in the doors - Center - 2 tweeters in a mirror triangle...
  • Page 56 Electrical Infotainment Antennas Antenna Amplifier R2 / FM2 Satellite Antenna R70 / SDARS Antenna for Radio and Telephone R5 Antenna Amplifier R24 / AM / FM Antenna Amplifier R / FZV Control Device for Antenna Selection J55 Navigation Antenna R50...
  • Page 57 Notes...

  • Page 58: Air Conditioning

    “ON” conditions for air recirculation have been met. Note The Audi R8 does not have an Air Quality Sensor G238.
  • Page 59 Climatronic Control Module J255 The setpoint for the temperature flap is set using the The seat heater is optional equipment with the Audi R8. “Temperature” rotary knob. The rotary knob is infinitely The three heater settings can be set by pressing the variable and activates the “Maximum Cool”...
  • Page 60 Air Conditioning System Communication Various sensors provide input to Climatronic Control Data is transferred between Fresh Air Blower Control Module J255. Outside Air Temperature Sensor G7 is Module J26 and Climatronic Control Module J255 using located in front of the condenser on the right side of the the LIN data bus system of the air conditioning system.
  • Page 61 Notes...

  • Page 62: Self-Study Programs

    – Audi Space Frame (ASF) – Joining Techniques and Production Processes – Vehicle Safety Concept – Dimensions SSP 921603 - The Audi 4.2L V8 Engine – Engine Mechanical – Oil Circulation System – Cooling System – Air Circulation System – Fuel System –...

  • Page 63: Knowledge Assessment

    From the accessaudi.com homepage: – Click on the “ACADEMY” Tab – Click on the “Academy Site” Link – Click on the ”CRC Certification” Link For assistance, please call: Audi Academy Learning Management Center Headquarters 1-877-AUDI-LMC (283-4562) (8:00 a.m. to 8:00 p.m. EST)
  • Page 64 99B703 All rights reserved. Technical specifications subject to change without notice. Audi of America, Inc. 3800 Hamlin Road Auburn Hills, Michigan 48326...

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