🏷️ Basic Information

Make:

Audi

Model:

A8 Quattro

Year:

1999

Generation Code:

D2 (Typ 4D)

👋 Introduction

Market Position:

Premium luxury sedan, targeting a sophisticated clientele with a focus on performance, technology, and comfort. The '99 A8 Quattro represented Audi's flagship model.

Competitive Analysis:

Competed directly with established luxury marques such as Mercedes-Benz S-Class, BMW 7 Series, and Lexus LS. Key differentiators included its standard quattro all-wheel-drive system, advanced aluminum spaceframe construction (ASF), and understated yet elegant design.

Key Features:

Aluminum Spaceframe (ASF) construction for reduced weight and increased rigidity, standard quattro all-wheel-drive, sophisticated interior appointments, powerful V8 engine options, advanced safety features for its era.

📋 Manual Details

Coverage Areas:

Comprehensive service and repair information for the 1999 Audi A8 Quattro.

Page Count:

Not specified, but implies extensive factory-derived content.

Manual Type:

Online Service and Repair Manual Software

Language:

English

Format:

Web-based software with year-long access.

📖 Manual Coverage

Systems Covered:

Engine, Drivetrain, Brakes, Suspension, Steering, Electrical System, HVAC, Bodywork, Fuel System, Cooling System, Exhaust System, Lubrication System, Ignition System, Lighting, Instruments, Chassis, Body Controls.

Procedures Included:

Routine maintenance, diagnostics, troubleshooting, component repair, replacement procedures, wiring diagrams, specifications, adjustments, reassembly, fluid changes, filter replacements, belt replacements, brake system service, suspension component replacement, steering system service, engine tune-up, exhaust system repair, HVAC system service, electrical system diagnostics and repair.

Technical Depth:

Factory-derived OE (Original Equipment) level detail, suitable for DIY mechanics to professional technicians. Covers everything from basic maintenance to complex engine and transmission repairs.

📊 Manual Specifications

File Format:

Proprietary web-based platform.

Print Quality:

N/A (Digital Format)

Binding Type:

N/A (Digital Format)

Paper Type:

N/A (Digital Format)

⚙️ Engine Specifications

Engine Code:

AEW (4.2L V8)

Engine Type:

Naturally Aspirated V8

Displacement:

4172 cc (4.2 Liters)

Bore X Stroke:

84.5 mm x 93.0 mm

Compression Ratio:

10.5:1

Valvetrain:

DOHC (Dual Overhead Camshafts), 5 valves per cylinder (3 intake, 2 exhaust)

Horsepower Rating:

300 PS (296 hp; 221 kW) @ 6000 rpm

Torque Rating:

400 Nm (295 lb-ft) @ 3300 rpm

0-60 Mph Time:

Approx. 6.9 seconds (manufacturer claim)

Fuel Injection:

Multi-point Fuel Injection (MPI)

Fuel Type:

Premium Unleaded (91 AKI or higher)

Coolant Type:

G12 or equivalent (Pink/Red coolant)

Oil Capacity:

Approx. 7.2 Liters (7.6 US Quarts)

Recommended Oil Viscosity:

SAE 0W-40 or SAE 5W-40 (check owner's manual for specific conditions)

Spark Plugs:

Bosch FGR7DQP or equivalent (5-digit part number for replacement)

🔧 Transmission

Transmission Type:

5-speed Automatic Tiptronic

Transmission Model:

ZF 5HP24

Optional Transmission:

None for the 1999 A8 Quattro in North America.

Transmission Features:

Tiptronic manual shift mode, adaptive shift control, electronically controlled hydraulic pressure.

Transmission Fluid Type:

ATF Dexron III or Dexron VI (check manual for precise specification, Pentosin ATF1 is often recommended)

Transmission Fluid Capacity:

Approx. 8.0 Liters (8.5 US Quarts) for a complete fill, significantly less for a drain and fill.

📐 Dimensions

Length:

5043 mm (198.5 in)

Width:

1880 mm (74.0 in)

Height:

1438 mm (56.6 in)

Wheelbase:

2963 mm (116.7 in)

Front Track:

1588 mm (62.5 in)

Rear Track:

1574 mm (62.0 in)

Curb Weight:

Approx. 1830 kg (4034 lbs)

Gross Vehicle Weight Rating Gvwr:

Not specified, but typically around 2300 kg (5070 lbs)

Towing Capacity:

Not typically specified or recommended for this vehicle.

Trunk Volume:

Approx. 540 Liters (19.1 cu ft)

🛡️ Safety Features

NHTSA Front Impact Rating:

Not readily available for this specific model year, but generally considered very safe for its era.

IIHS Crash Test Performance:

Not readily available for this specific model year, but the D2 platform was known for its robust structure.

Active Safety Features:

ABS (Anti-lock Braking System), ESP (Electronic Stability Program) / EDL (Electronic Differential Lock), Quattro All-Wheel Drive.

Passive Safety Features:

Front airbags, side airbags (optional/standard depending on market/trim), 3-point seatbelts with pretensioners, reinforced passenger cell, side-impact beams, height-adjustable front headrests.

💡 Technology Features

Infotainment System:

Audi Symphony or Concert radio, CD player, cassette player, optional navigation system (MMI not yet introduced).

Audio System:

Bose premium sound system available on higher trims or as an option.

Driver Assistance Features:

Cruise control, parking sensors (optional), trip computer.

Connectivity Features:

Limited by modern standards. Primarily analog systems. OnStar or similar telematics may have been an option.

Headlight Type:

Halogen projector headlights, HID/Xenon headlights optional/available on higher trims.

🔧 Maintenance

Oil Change Interval:

Typically 10,000 miles or 1 year, whichever comes first. Consult the manual for specific oil and filter recommendations.

Timing Belt Replacement:

For the 4.2L V8, it uses a timing chain, not a belt, requiring no scheduled replacement under normal circumstances. However, tensioners and guides can wear out over time.

Transmission Fluid Change Interval:

Recommended every 40,000 to 60,000 miles. A partial drain and fill is often preferred over a flush.

Brake Fluid Type:

DOT 4

Power Steering Fluid Type:

Pentosin CHF 11S or G 002 000

Coolant Capacity:

Approx. 10 Liters (10.6 US Quarts)

Known Issues:

ABS/ESP module failures, climate control module (ECC) failures, window regulator failures, coil pack failures, rear main crankshaft seal leaks, sagging headliner, coolant leaks from plastic manifold or hoses, transmission torque converter lock-up issues.

📚 Vehicle History

Brand Heritage:

Audi AG, a German automotive manufacturer with a long history dating back to the early 20th century, known for engineering, quattro technology, and progressive design.

Model Evolution:

The first generation A8 (D2) was introduced in 1994 as the successor to the Audi V8. The 1999 model year represents a mid-cycle refresh, including updated styling cues, interior refinements, and revised engine options for some markets.

Production Period:

1994-2002 (D2 Generation)

Manufacturing Location:

Neckarsulm, Germany

🏆 Awards & Recognition

Recognitions:

Car and Driver's 10Best list (multiple years for the D2 generation), MotorTrend Car of the Year (not specific to '99 but for the platform).

Ratings:

Consistently praised for its performance, handling, and luxury appointments in contemporary reviews.