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2004 Audi A8 Overview, Reviews, Ratings & Specs

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Based on 0 Owner Reviews
Drew B | March 31, 2025
The 2004 Audi A8 represents the second generation of Audi's flagship luxury sedan. Boasting an aluminum space frame (ASF) for reduced weight and increased rigidity, it's a four-door sedan offering a spacious cabin and advanced technology for its time. Model years included 2004-2010. Key trims typically included the standard A8 and the longer-wheelbase A8 L. Original pricing ranged from approximately $68,000 to $75,000+. It stood out for its elegant design, quattro all-wheel drive, and luxurious features.
The Good

The 2004 Audi A8 offered a blend of performance and luxury. Its quattro all-wheel drive provided confident handling, appealing to performance enthusiasts. The comfortable and well-appointed interior attracted those seeking a luxurious experience. While not the most reliable, its distinctive design and relative value on the used market can be enticing. The powerful V8 engine is a major plus.

The Bad

Known weaknesses of the 2004 Audi A8 include potential issues with the air suspension system, which can be expensive to repair. Electrical problems are also relatively common. The timing belt should be inspected and replaced at recommended intervals to prevent catastrophic engine damage. High maintenance costs are a major concern. Complex systems can lead to costly repairs.

2004 Audi A8: Quick Overview

  • Engine Options: 4.2-liter V8
  • Horsepower: 330 hp
  • Fuel Economy: Approximately 16 mpg city / 23 mpg highway (V8)
  • 0–60 Times: Around 6.3 seconds (V8)
  • Towing Capacity: Not typically recommended or rated for towing.
  • Trim-Level Features:
    • A8 (Standard): Leather upholstery, power-adjustable and heated front seats, wood trim, sunroof, dual-zone automatic climate control, Bose sound system, navigation system, xenon headlights, parking sensors, and alloy wheels.
    • A8 L (Long Wheelbase): Adds increased rear legroom, available upgraded rear seating configurations (e.g., reclining seats with massage function), and often included additional luxury features as standard or optional equipment.
  • Drivetrain: quattro all-wheel drive system
  • Transmission: 6-speed automatic transmission
  • Other Notable Features: Adaptive air suspension (height adjustable), power trunk, auto-dimming mirrors, rain-sensing wipers.
  • Safety Features: Anti-lock brakes (ABS), electronic stability program (ESP), traction control, front and side airbags, and side curtain airbags.

2004 Audi A8 Specifications

Vehicle Information
Year 2004
Make Audi
Model A8
Trim -
Style -
Type Sedan
Category Compact Car
Manufacturing Details
Made In Germany
Manufacturing City GYOR
Dimensions
Doors 4-Door
Curb Weight -
Gross Vehicle Weight Rating -
Overall Height -
Overall Length -
Overall Width -
Wheelbase Length -
Standard Seating -
Engine & Performance
Engine 4.2L V8
Engine Size 4.2L
Engine Cylinders 8
Transmission -
Transmission Type -
Transmission Speeds -
Drivetrain All-Wheel Drive
Additional Features
Anti-Brake System -
Steering Type -
Pricing
Manufacturer Suggested Retail Price (MSRP) -
Invoice Price -
Delivery Charges -

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What Problems Does the 2004 Audi A8 Have?

Frequently reported problems for the 2004 Audi A8 often revolve around its complex systems. The air suspension is a common source of trouble, with compressors, air struts, and control modules prone to failure, leading to expensive repairs. Electrical issues, such as problems with the central convenience system, malfunctioning sensors, and issues with the infotainment system, are also frequently reported.
The timing belt is a critical maintenance item on the 4.2L V8. Failure to replace it at the recommended interval (typically around 75,000-90,000 miles) can result in catastrophic engine damage.
Recalls for the 2004 Audi A8, while not always frequent, should be checked via the NHTSA website using the vehicle's VIN. Common areas for recalls across similar Audi models of this era include issues related to airbags, fuel systems, or electrical components. Long-term reliability is a concern due to the age and complexity of the vehicle. Parts can be costly and harder to find, and deferred maintenance by previous owners can lead to a cascade of problems. Specifically, look for documentation of timing belt replacement, air suspension maintenance, and transmission servicing.

How long will the 2004 Audi A8 last?

Given its age, a 2004 Audi A8 is likely to have accumulated significant mileage. Well-maintained examples could reach 200,000 miles or more. However, longevity heavily depends on consistent maintenance, especially addressing the air suspension, timing belt, and electrical systems. Poor maintenance habits drastically shorten lifespan. The aluminum chassis is durable, but components like bushings, hoses, and seals will degrade over time, requiring replacement. Expect higher maintenance costs as the car ages, irrespective of mileage, because age affects rubber and plastic components.

What Technology & Safety Features are Included?

The 2004 Audi A8 featured advanced technology for its time. Standard features included a Bose sound system, a navigation system (often with a small screen), dual-zone automatic climate control, and xenon headlights.
Entertainment options included a CD changer, and potentially an early form of satellite radio. Driver-assistance features were limited compared to modern cars, but included parking sensors. Safety features consisted of anti-lock brakes (ABS), electronic stability program (ESP), traction control, and a comprehensive airbag system (front, side, and curtain airbags).
Optional features could include upgraded leather upholstery, massaging front and rear seats, adaptive cruise control (ACC) – though early versions were less sophisticated than today's systems – and a rear-seat entertainment system. Euro NCAP crash-test ratings (the European equivalent of NHTSA) were generally high for occupant protection. U.S. NHTSA ratings, if available, can be checked online. The Audi A8 lacked modern conveniences like smartphone integration (Apple CarPlay/Android Auto) and advanced driver-assistance systems (ADAS) such as lane departure warning or automatic emergency braking.

What Colors Options are Available?

Exterior Colors
Brilliant Black
Arctic White
Atlas Grey Metallic
Dark Blue Pearl Effect
Bordeaux Red Pearl Effect
Ocean Blue Pearl Effect
Silver Metallic
Interior Colors
Black Leather
Grey Leather
Beige Leather

2004 Audi A8 Prices and Market Value

When new, the 2004 Audi A8 had a base price ranging from around $68,000 to over $75,000 depending on the trim and options. On the used market, prices can range from $3,000 to $10,000 or more, depending on condition, mileage, and maintenance history. The A8 has experienced significant depreciation due to its age, complexity, and associated maintenance costs. Factors affecting resale value include overall condition, documented maintenance history (especially timing belt and air suspension), mileage, and geographic location. Cars with extensive deferred maintenance or high mileage command lower prices.

2004 Audi A8 Cost of Ownership

Owning a 2004 Audi A8 is generally considered costly. Insurance premiums will be moderate given the car's age, but fuel costs are high due to the V8 engine's consumption. Maintenance and repair costs are the biggest concern, especially for the air suspension, electrical systems, and timing belt. Parts can be expensive and labor intensive. Long-term ownership requires a dedicated budget for potential repairs. This is not an economical car to own, primarily due to its potential for expensive repairs.

2004 Audi A8 Fuel Efficiency

Fuel Type Gasoline
Fuel Capacity -
City Mileage -
Highway Mileage -

2004 Audi A8 Safety Rating

NHTSA
Overall Rating Not Tested
Overall Frontal Star Rating Not Tested
Side Overall Star Rating Not Tested
Overall Rollover Star Rating Not Tested
Combined Front Seat Rating Not Tested
Combined Rear Seat Rating Not Tested
Overall Frontal Star Rating Not Tested
Frontal Barrier Star Ratings Not Tested
Side Barrier Star Ratings Not Tested
Rollover Resistance Star Rating Not Tested

2004 Audi A8 Recalls & Defects

AIR Bags:frontal
Recall date 2006-08-31
Recall no. 06v324000
Source NHTSA
Summary ON Certain Passenger Vehicles, During Production OF THE Driver's Frontal AIR Bag, THE AIR BAG MAY NOT Unfold Properly IN THE Event OF A Crash and Therefore MAY NOT Inflate AS Designed.
Consequence Loss OF Frontal AIR BAG Deployment Could Occur Which CAN Increase THE Risk OF Injury IN A Frontal Crash.
Remedy Dealers Will Install A NEW Driver's Frontal AIR BAG Free OF Charge. THE Recall Began ON October 6, 2006. Owners MAY Contact Audi AT 1-800-822-2834.
Notes VW Recall NO. Jq.customers MAY Also Contact THE National Highway Traffic Safety Administration's Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Http://Www.safercar.gov.

2004 Audi A8 Insurance

Insurance for a 2004 Audi A8 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.

How Does the 2004 Audi A8 Compare to Other Sedan?

The 2004 Audi A8 competed with the BMW 7 Series, Mercedes-Benz S-Class, and Lexus LS 430. In terms of performance, the A8's quattro all-wheel drive gave it an advantage in inclement weather compared to rear-wheel-drive rivals. Features were comparable across the class, with each offering luxury amenities. However, the A8's reliability trailed behind the Lexus LS 430, known for its exceptional dependability. The BMW 7 Series offered a sportier driving experience, while the S-Class emphasized luxury and comfort.
In terms of price on the used market, the A8 might be slightly more affordable than some of its rivals, but its higher potential maintenance costs offset any initial savings. A potentially better alternative, for those prioritizing reliability, is the Lexus LS 430. For those wanting similar features but potentially lower running costs and willing to sacrifice some luxury, a well-maintained Acura RL could be considered. The BMW 7 Series can offer a similar level of driving pleasure, but shares comparable reliability concerns.

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Final Verdict: Is the 2004 Audi A8 a Good Sedan?

The 2004 Audi A8 is ideal for enthusiasts who appreciate its design, all-wheel-drive performance, and luxurious features, and are prepared for potentially high maintenance costs. It is worth buying only under specific conditions: a thorough pre-purchase inspection by a qualified mechanic is crucial, along with a complete maintenance history, especially regarding the timing belt and air suspension. Opting for a well-maintained example with documented service records is essential. Given its age, buying used is the only option. The A8 L offers more rear legroom. However, it is not recommended for those seeking a reliable and economical daily driver.

2004 Audi A8 Owner Reviews

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Drew B

Drew is a seasoned automotive expert and contributor to VinCheck.info. With nearly 15 years of experience as a former Porsche technician, he brings a wealth of hands-on knowledge to his writing. Born in North Carolina, a region renowned for its deep-rooted NASCAR culture, Drew developed a passion for cars early in life, often building and working on vehicles from a young age. At VINCheck, Drew leverages his extensive technical background to provide in-depth analyses of various vehicles. His articles often focus on engine performance, reliability, and maintenance insights, offering readers practical information grounded in real-world experience. Some of his notable contributions include reviews on the Mazda CX-5's longevity and detailed examinations of engine options for models like the 2011 Toyota Camry and Tacoma