Segment:
Full-size luxury sedan.
Target Audience:
Discerning luxury car buyers seeking comfort, performance, and advanced technology.
Competitors:
Mercedes-Benz S-Class, BMW 7 Series, Lexus LS.
Design Philosophy:
Audi's signature understated elegance and build quality.
Drivetrain:
Standard Quattro all-wheel drive system.
Engine Mechanical:
Detailed coverage of engine disassembly, assembly, troubleshooting, and repair for all applicable engine variants.
Transmission:
In-depth repair and service procedures for automatic and manual transmissions, including overhaul and component replacement.
Brakes:
Comprehensive brake system diagnostics, repair, ABS, and related components.
Electrical:
Extensive electrical system coverage, including starter, alternator, battery, ignition, and all ECUs.
Driveline Axle:
Service and repair of front and rear axles, driveshafts, CV joints, and differentials.
Suspension:
Detailed repair and adjustment procedures for front and rear suspension systems, including components like control arms and shock absorbers.
Steering:
Service and troubleshooting for power steering systems and steering components.
Body Frame Interior Exterior:
Repair and maintenance of body panels, doors, windows, interior trim, and exterior components.
HVAC:
Diagnostic and repair procedures for the heating, ventilation, and air conditioning system.
Audio Visual Telematics:
Information on audio systems, navigation, and telematics components.
Restraints:
Coverage of the airbag system, seatbelts, and associated safety restraints.
Lights:
Diagnosis and repair of all interior and exterior lighting systems.
Tires Wheels:
Information on wheel specifications, tire pressure monitoring, and related components.
Preventive Maintenance:
Detailed recommended service intervals, fluid change schedules, and component inspection procedures.
Troubleshooting:
Extensive diagnostic flowcharts, symptom-based troubleshooting guides, and common fault resolution.
Repair Procedures:
Step-by-step instructions for component removal, installation, adjustment, and rebuilding.
Wiring Diagrams:
Comprehensive and detailed electrical wiring diagrams for all vehicle systems.
Diagnostic Capability:
Advanced diagnostic procedures, including system checks and parameter analysis.
Rebuild Procedures:
Complete engine and transmission rebuild procedures with specifications.
Specifications Data:
Access to torque specifications, clearances, fluid capacities, and component tolerances.
Engine Options 1:
4.2L V8 (ABH engine code)
Bore Stroke 1:
84.5 mm x 93.0 mm
Compression Ratio 1:
10.2:1
Horsepower 1:
300 PS (296 hp) at 6000 rpm
Torque 1:
400 Nm (295 lb-ft) at 3300 rpm
Fuel System 1:
Multi-Point Fuel Injection (MPI)
Engine Management 1:
Bosch Motronic M 5.2
Engine Codes Covered:
ABH, AQJ, ARS, ASG, ACK, ALG, AMX, APB
S8 Engine Type:
4.2L Twin-Turbocharged V8 (AXL engine code)
S8 Horsepower:
360 PS (355 hp) at 5500 rpm
S8 Torque:
510 Nm (376 lb-ft) at 1800 rpm
Fuel Type:
Premium Unleaded Gasoline (91 AKI or higher recommended)
Wheelbase:
2,882 mm (113.5 in)
Length:
5,027 mm (197.9 in) for A8, 5,130 mm (202.0 in) for A8L
Width:
1,880 mm (74.0 in)
Height:
1,420 mm (55.9 in)
Curb Weight Approx:
1,850 kg (4,079 lb) for 4.2 Quattro
Gross Vehicle Weight Rating Approx:
2,400 kg (5,291 lb)
Towing Capacity Not Specified:
Typically not specified for this class of vehicle.
Crash Test Ratings:
Data for this specific model year's crash test performance may vary by region. Refer to official NHTSA or Euro NCAP archives if available.
ABS:
Standard Anti-lock Braking System (ABS).
Esp:
Electronic Stability Program (ESP) may be standard or optional depending on market and specific model variant.
Traction Control:
Standard with Quattro system, often integrated with ESP.
Airbags:
Front airbags for driver and passenger, optional side airbags.
Seatbelts:
Pretensioning seatbelts with force limiters.
Security:
Immobilizer system.
Oil Change Interval:
Typically every 10,000-15,000 km (6,000-9,000 miles) or 12 months, whichever comes first (check manual for exact recommendation).
Transmission Fluid Interval:
Tiptronic automatic transmission fluid change recommended every 60,000-80,000 km (37,000-50,000 miles).
Spark Plug Replacement:
Recommended at approximately 100,000 km (60,000 miles) for iridium/platinum plugs.
Engine Oil Type:
SAE 0W-40 or 5W-40, API SJ or higher, ACEA A3-98/B3-98. Specific Audi approval like VW 502 00/505 00 is often recommended.
Coolant Type:
G12 Plus (or equivalent pink/red ethylene glycol based coolant).
Ignition Coils:
Premature failure of ignition coils on V8 engines can lead to misfires.
Mass Airflow Sensor:
Failure of the MAF sensor can cause rough idling and poor acceleration.
Automatic Transmission:
Valve body issues or torque converter problems can occur with high mileage.
Suspension Components:
Wear on control arm bushings and ball joints due to vehicle weight and age.
Climate Control Actuators:
Failure of HVAC blend door actuators can lead to temperature control issues.
Window Regulators:
Common failure of power window regulators.
