Vehicle Segment:
Full-size Luxury Sedan
Target Audience:
Luxury car buyers seeking comfort, advanced technology, and performance.
Key Competitors:
BMW 7 Series, Mercedes-Benz S-Class, Lexus LS, Jaguar XJ
Advanced Technology:
The A8 Quattro (D3) was known for its sophisticated technology, including Quattro all-wheel drive, advanced suspension systems, and premium interior features.
Manual Advantage:
Provides direct access to factory-derived information, offering accuracy and depth unmatched by generic guides.
Manual Coverage Scope:
Comprehensive service and repair for the 2004 Audi A8 Quattro
Estimated Page Count:
Likely several thousand pages; digital format allows for extensive content without physical page limitations.
Manual Type:
Service and Repair Manual Software
Format:
Online Software / Web-based Access
Powertrain:
Engine, Fuel System, Exhaust System, Drivetrain, Transmission
Chassis:
Suspension (Front & Rear), Steering System, Brakes (Front & Rear), Wheels & Tires
Electrical:
Engine Control Module (ECM), Body Control Module (BCM), Lighting Systems, Instrument Cluster, Infotainment System, Climate Control Electronics, Power Accessories
Body:
Exterior Body Panels, Interior Trim, Doors, Hood, Trunk, Glass, Seats
Comfort And Climate:
Heating, Ventilation, and Air Conditioning (HVAC) System
Maintenance:
Scheduled maintenance, fluid checks and changes, filter replacements, spark plug replacement, belt inspection/replacement
Diagnostics:
Troubleshooting guides, diagnostic trouble codes (DTCs), testing procedures for various systems
Repair:
Component removal and installation, engine overhaul, transmission service, brake caliper/rotor replacement, suspension component replacement, electrical component repair
Wiring Diagrams:
Detailed electrical wiring schematics for all vehicle systems
Depth Of Coverage:
Comprehensive: from basic fluid changes and component replacements to advanced engine and transmission diagnostics and repairs. Includes factory-level specifications and procedures.
Digital Format Details:
Web-based access via browser, compatible with PC, laptop, smartphone, tablet. Requires internet connection.
Print Quality Availability:
Not applicable for digital format; content is presented clearly on screen.
Binding Type:
Not applicable for digital format.
Paper Type:
Not applicable for digital format.
Access Duration:
1 Year (with discounts available for extended access)
Engine Code Common:
A8L models often featured the 4.2L V8 (e.g., BFM or BAT engine codes)
Engine Type:
Naturally Aspirated V8 (for 4.2L variants)
Displacement:
4.2 Liters (4172 cc)
Horsepower Est:
Approximately 335 hp @ 6500 rpm
Torque Est:
Approximately 317 lb-ft @ 3500 rpm
Fuel Delivery:
Electronic Fuel Injection (EFI) / Multi-Point Fuel Injection (MPI)
Fuel Type:
Premium Unleaded Gasoline (91 Octane or higher)
Valvetrain:
5 Valves per Cylinder (DOHC - Double Overhead Camshaft)
Cooling System:
Pressurized liquid cooling system with electric cooling fans
Length:
Approx. 5,053 mm (198.9 in)
Width:
Approx. 1,894 mm (74.6 in)
Height:
Approx. 1,436 mm (56.5 in)
Wheelbase:
Approx. 2,944 mm (115.9 in)
Curb Weight Est:
Approx. 1,850 - 1,950 kg (4079 - 4299 lbs), depending on configuration.
NHTSA Rating Est:
Likely received good ratings; specific 2004 A8 NHTSA data may vary by specific test year and configuration.
ABS:
Anti-lock Braking System (ABS)
Esc:
Electronic Stability Control (ESC) / ESP (Electronic Stabilization Program)
Traction Control:
Traction Control System (ASR - Anti-Slip Regulation)
Airbags:
Frontal airbags (driver & passenger), side airbags, curtain airbags, optional rear side airbags.
Seatbelts:
Pretensioning seatbelts with force limiters
Chassis Safety:
Advanced crumple zones, safety cage construction
Multimedia Interface:
MMI (Multi Media Interface) system
Navigation:
Optional DVD-based Navigation System
Adaptive Cruise Control:
Optional Adaptive Cruise Control (ACC)
Parking Assistance:
Optional Parking System Plus (front and rear parking sensors)
Bluetooth Integration:
Optional Bluetooth connectivity for hands-free calling
Climate Control:
Four-zone automatic climate control
Suspension System:
Adaptive Air Suspension with adjustable ride height and damping
Oil Change Interval:
Variable; typically indicated by the vehicle's Oil Quality Sensor (OQS) system, often between 7,500-10,000 miles or 12-18 months.
Spark Plug Replacement Interval:
Refer to manual; typically around 60,000 - 100,000 miles for iridium-tipped plugs.
Timing Belt Or Chain:
V8 engines typically use a timing chain, which requires periodic inspection but generally not replacement unless issues arise.
Engine Oil Specification:
SAE 0W-40 or 5W-40 Synthetic Engine Oil (meeting VW 502 00 / 505 00 standards)
Engine Oil Capacity:
Approx. 8.5 Liters (9.0 US Quarts)
Coolant Type:
G12 Plus (Pink) or G12 ++ (Purple) VW/Audi Antifreeze
Brake Fluid Type:
DOT 4 (or DOT 4 Plus / Super DOT 4)
Common Wear Items:
Air suspension components (air springs, compressor), ignition coils, mass air flow (MAF) sensor, coolant temperature sensors, door lock actuators, window regulators.
Electrical Gremlins:
Can be prone to various electrical issues due to complex systems; proper diagnosis is crucial.
Transmission Behavior:
Occasional shifting issues or 'limp mode' can occur, often related to mechatronic unit or solenoids.
Audi Legacy:
Audi has a long history of automotive engineering, known for Quattro, advanced technology, and luxury.
A8 Lineage:
The A8 succeeded the Audi V8 and introduced the D3 platform, representing a significant leap in design and technology for Audi's flagship sedan.
D3 Generation:
The D3 generation (2002-2009) brought styling updates, improved aluminum space frame construction, and more advanced features.
Manufacturing Location:
Neckarsulm, Germany
