🏷️ Basic Information

Make:

Audi

Model:

A8 S8

Model Code:

D3-4E

Year:

2004

👋 Introduction

Target User:

Audi A8/S8 (D3-4E) owners, DIY enthusiasts, independent repair shops

Value Proposition:

Provides dealership-level technical information for DIY repair and maintenance, saving time and money.

Differentiation:

Vehicle-specific, not generic; comprehensive A-Z coverage; factory-sourced technical data.

Convenience:

Single PDF manual, no flipping through books, print only needed pages, easily accessible on PC.

Learning Benefit:

Enables users to learn and perform repairs themselves, reducing reliance on mechanics.

📋 Manual Details

Primary Focus:

Service and Repair

Scope:

All models and all repairs A-Z

Data Source:

Factory specific, used by dealership technicians

Estimate:

Extensive (exact count not provided, but implied to be comprehensive for A-Z repairs)

Type:

Service and Repair Manual

Language:

English

Format:

PDF (printable, zoomable images)

📖 Manual Coverage

Powertrain:

Engine, Fuel Service Specifications, Emission Control, Intake, Exhaust, Cooling, Lube, Ignition, Starting, Charging, Auto Transmission, Manual Transmission, Transfer Case, Propeller Shaft, Drive Shaft, Differential, Axle

Chassis:

Suspension, Tire & Wheel, Brake Control, Brake, Parking Brake, Steering Column, Power Steering

Body And Interior:

Air Conditioning, Supplemental Restraint System (SRS), Seat Belt, Door Lock, Windshield/Glass/Mirror, Instrument Panel, Seat, Engine Hood/Door, Exterior & Interior Trim

Electrical And Electronics:

Engine Control System, Electrical System, Multiplex/CAN Communication, Engine Immobilizer, Cruise Control, Wiper & Washer, Meter, Audio/Visual, Horn

Maintenance:

Scheduled maintenance, fluid changes, filter replacements, inspections

Diagnostics:

Troubleshooting guides, fault code interpretation, diagnostic procedures

Repair:

Component removal, installation, adjustment, overhaul, and replacement for all systems

Specifications:

Torque values, clearances, fluid capacities, pressures, electrical parameters

Depth:

Factory-level detail, covering all repairs from basic maintenance to complex diagnostics and rebuilds

Content Type:

Step-by-step instructions, diagrams, illustrations, wiring schematics, technical specifications

📊 Manual Specifications

Format:

PDF

Compatibility:

Windows (Vista 32/64, XP, ME, 98, NT, 2000) and Mac OS

Reader Requirement:

Adobe PDF Reader (free online)

Extraction Requirement:

Winzip (free online)

Printability:

All pages are printable

Zoom Capability:

Images can be blown up and printed enlarged

Binding:

Digital (PDF) - No physical binding, eliminates grease and torn pages

Paper Type:

N/A (digital format)

⚙️ Engine Specifications

Engine Type A8:

Likely 4.2L V8 FSI (or earlier 4.2L V8, depending on specific sub-model within 2004 A8 range)

Engine Type S8:

Likely 5.2L V10 FSI (for S8 model in this generation, though initial D3 S8 models had a 4.2L V8 Bi-Turbo)

Horsepower A8 4.2L V8:

~335 hp @ 6500 rpm (estimated for 2004 model)

Torque A8 4.2L V8:

~317 lb-ft @ 3500 rpm (estimated for 2004 model)

Horsepower S8 4.2L V8 Bi-Turbo:

~450 hp @ 5500 rpm (if referring to early D3 S8)

Torque S8 4.2L V8 Bi-Turbo:

~443 lb-ft @ 1950 rpm (if referring to early D3 S8)

Horsepower S8 5.2L V10:

~450 hp @ 7000 rpm (estimated for later D3 S8 models)

Torque S8 5.2L V10:

~398 lb-ft @ 3500 rpm (estimated for later D3 S8 models)

Injection Type:

Fuel Stratified Injection (FSI) for many later models, possibly multi-point injection for earlier variants

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

Cooling System:

Liquid-cooled, pressurized system with electric fans

Oil Capacity 4.2L V8:

Approximately 8.7 US quarts (8.2 liters) - requires verification from manual

Oil Capacity 5.2L V10:

Approximately 9.5 US quarts (9.0 liters) - requires verification from manual

Oil Specification:

API SN/SP, ACEA C3, SAE 0W-30 or 5W-30 (specific VW 504 00/507 00 or similar OEM spec likely required - consult manual for exact spec)

🔧 Transmission

Transmission Type:

Tiptronic Automatic Transmission (likely 6-speed)

Manual Option:

Not typically offered for A8/S8 models in this generation, exclusively automatic.

Drive System:

Quattro All-Wheel Drive (AWD)

Transmission Fluid Type:

Specific ATF (Automatic Transmission Fluid) required, consult manual for exact part number and specification (e.g., G 055 005 series).

📐 Dimensions

Length:

Approx. 5.04 meters (198.4 inches) - for standard wheelbase

Width:

Approx. 1.89 meters (74.6 inches)

Height:

Approx. 1.44 meters (56.7 inches)

Curb Weight:

Varies significantly by engine and features, typically 4,200 - 4,500 lbs (1900-2040 kg) for A8, and 4,500 - 4,800 lbs (2040-2180 kg) for S8.

🛡️ Safety Features

NHTSA Rating:

Likely 4-5 star ratings for frontal and side crash impacts, typical for luxury vehicles of this era. Specific year ratings to be verified.

Active Safety:

Anti-lock Braking System (ABS), Electronic Stability Control (ESC), Traction Control System (TCS), Electronic Brake-force Distribution (EBD)

Passive Safety:

Front airbags, side airbags, curtain airbags, active head restraints, pre-tensioned seat belts

💡 Technology Features

Infotainment System:

Audi's MMI (Multi Media Interface) system with navigation, radio, climate control, and vehicle settings management.

Audio System:

Bose premium sound system often standard or optional.

Advanced Driver Assistance:

Optional adaptive cruise control (ACC), parking sensors (front and rear), rearview camera.

Connectivity Features:

Integrated Bluetooth for hands-free calling (depending on MMI version and package).

🔧 Maintenance

Oil Change Interval:

Typically 10,000 miles or 1 year (LongLife service), or 5,000 miles under severe driving conditions. Check manual for specific interval based on oil specification used.

Transmission Fluid Service:

While considered 'lifetime' by some manufacturers, a fluid and filter change is recommended by many independent technicians around 60,000-80,000 miles for longevity.

Spark Plug Replacement:

Approximately 60,000 miles for many D3 models, depending on engine and spark plug type.

Coolant Type:

G12/G12+ coolant or equivalent (ethylene glycol-based with organic acid technology inhibitors)

Brake Fluid Type:

DOT 4

Common Failures A8:

Air suspension compressor/struts failure, MMI system glitches, ignition coil failure, oil leaks from valve covers or oil cooler seals, coolant leaks from various hoses/pipes.

Common Failures S8:

Similar to A8, plus potential for increased wear on components due to higher performance driving, exhaust system issues.

Transmission Issues:

Occasional electronic shift module problems or torque converter issues requiring specialized diagnostics and repair.

📚 Vehicle History

Brand Philosophy:

Audi is known for its quattro all-wheel-drive technology, advanced engineering, luxury, and understated design.

D3 Generation Introduction:

The D3 generation of the Audi A8 was introduced in 2002 for the 2003 model year, with updates and the S8 variant following.

D3 Key Features:

Aluminum space frame (ASF), advanced MMI (Multi Media Interface), air suspension, available W12 engine.

Production Location:

Neckarsulm, Germany

🏆 Awards & Recognition

Automotive Awards:

The Audi A8 generation (D3) received critical acclaim for its styling, technology, and luxury appointments, often being recognized in luxury sedan comparisons.