Segment:
Full-size Luxury Sedan
Positioning:
Audi's flagship sedan offering advanced technology and comfort
Competitors 1998:
Mercedes-Benz S-Class (W140), BMW 7 Series (E38), Lexus LS (XF20)
Features Vehicle:
Quattro all-wheel drive, aluminum spaceframe construction (ASF), advanced safety features
Features Manual:
Licensed OE data, digital accessibility, DIY-friendly interface, cost-effective repair solution
Primary Coverage:
Official Service and Repair Manual Software
Additional Coverage:
OE (Original Equipment) licensed information
Estimated Page Count:
Thousands (digital, comprehensive)
Type:
Service and Repair Manual Software
Format:
Online Software (Web Browser Access)
Access Duration:
1 Year (with option for renewal)
Engine Mechanical:
Engine overhaul, diagnostics, component testing, timing, sealing
Engine Management:
Fuel injection, ignition system, emissions control, ECU diagnostics
Drivetrain:
Automatic transmission (Tiptronic), differential, drive axles, prop shaft
Suspension:
Front and rear suspension components, alignment, shock absorbers, springs, control arms
Steering:
Power steering system, steering rack, tie rods, steering column
Brakes:
Front and rear brake systems (disc), ABS, brake fluid, hydraulic components
Electrical System:
Wiring diagrams, fuses, relays, lighting, power windows, central locking
HVAC:
Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant, climate control
Body And Interior:
Body panels, doors, windows, seats, interior trim, body hardware
Diagnostics And Troubleshooting:
Fault code interpretation, diagnostic procedures, symptom-based troubleshooting
Maintenance:
Routine servicing, oil changes, filter replacements, fluid checks, tune-ups
Repair:
Component replacement, system repair, calibration, assembly/disassembly
Diagnostics:
System testing, fault finding, diagnostic tool usage
Troubleshooting:
Problem identification and resolution steps for various systems
Depth:
Comprehensive factory-level service information
Detail Level:
Step-by-step instructions, torque specifications, special tool requirements
Engine Code Primary:
AEG (4.2L V8)
Displacement Primary:
4.2 liters (4172 cc)
Configuration Primary:
V8, 32 valves (4 valves per cylinder)
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Horsepower Primary:
300 hp @ 6000 rpm
Torque Primary:
295 lb-ft @ 3400 rpm
Engine Codes Secondary:
ABZ (4.2L V8 - slightly different tuning), AKE (2.8L V6 - not typically for US 1998 A8)
Fuel Type:
Premium Unleaded Gasoline (91+ Octane)
Engine Oil Type:
SAE 5W-40 or 0W-40 Synthetic
Engine Oil Capacity:
7.5 liters (7.9 US Quarts)
Transmission Type:
5-speed Tiptronic Automatic Transmission
Transmission Features:
Tiptronic manual shifting mode, adaptive shift control
Transmission Fluid Type:
G 052 162 A1 (or equivalent ATF)
Transmission Fluid Capacity:
Approximately 8.0 liters (8.5 US Quarts) for complete fill
NHTSA Front Impact:
Likely 4-star (based on contemporary testing for similar vehicles)
IIHS Side Impact:
Data not readily available for this specific model year, but generally good for the era
Airbags:
Driver and front passenger airbags, optional side airbags
Seatbelts:
Three-point inertia-reel seatbelts with front pre-tensioners
Construction:
Audi Space Frame (ASF) aluminum construction for enhanced rigidity and safety
ABS:
Standard Anti-lock Braking System (ABS)
Esp:
Optional Electronic Stability Program (ESP) on some models/markets
Audio System:
Audi Concert or Symphony audio system with CD changer preparation, optional Bose sound system
Navigation:
Optional navigation system (radio-based, typically with CD-ROM)
Cruise Control:
Standard cruise control
Parking Sensors:
Optional parking assist system (rear sensors)
Phone Integration:
Optional integrated hands-free telephone system
Oil Change Interval:
Typically 10,000-15,000 miles or 12 months (whichever comes first), depending on driving conditions and oil type used.
Timing Belt Replacement:
Not applicable to V8 engines as they use a timing chain.
Brake Fluid Flush:
Every 2 years
Transmission Fluid Service:
Recommended every 60,000 miles or as specified by Audi, though often considered 'lifetime' fluid by some.
Common Issues 1998 A8:
Ignition coil failure, mass air flow sensor issues, transmission control module (TCM) problems, cooling system leaks, power window regulators, crankcase ventilation system issues
Maintenance Advice:
Regularly inspect and maintain cooling system hoses and seals due to age. Address minor oil leaks promptly. Use high-quality synthetic oil.
Brand Focus:
German automotive manufacturer known for luxury, performance, and quattro all-wheel drive
A8 Generation D2:
First generation of the Audi A8, introduced in 1994 (Europe) and 1997 (North America), replacing the Audi V8
D2 Facelift:
The 1998 model year is part of the pre-facelift D2 generation. A significant facelift occurred for the 1999 model year.
Production Location:
Neckarsulm, Germany
