The 2004 Audi A4, part of the B6 generation (2002-2008), offered a refined entry into the premium compact executive car segment. Available as a sedan and avant (wagon), it competed with rivals like the BMW 3 Series and Mercedes-Benz C-Class. Key trims included the 1.8T, 3.0 quattro, and S4. Its popularity stemmed from a blend of sophisticated styling, a well-appointed interior, and the availability of Audi's signature quattro all-wheel-drive system.
The Good
The 2004 Audi A4 boasts a premium interior with excellent comfort and a sophisticated design that still holds up. Its quattro all-wheel-drive offers confident handling, while the ride is smooth. For enthusiasts, the turbocharged engine provides spirited performance, appealing to emotional desires, while its perceived build quality offers practical peace of mind.
The Bad
Owners should be aware of potential issues with the ignition coils, mass airflow sensor, and oil leaks, particularly from valve cover gaskets and oil cooler seals. The automatic transmission can also be a concern for some. Regular maintenance is crucial to mitigate these common problems.
2004 Audi A4: Quick Overview
- Engine Options:
- 2.0L Turbocharged Inline-4 (1.8T models): Approximately 170 horsepower and 220 lb-ft of torque.
- 3.0L V6 (3.0 quattro models): Approximately 220 horsepower and 221 lb-ft of torque.
- 4.2L V8 (S4 models): Approximately 340 horsepower and 302 lb-ft of torque.
- Horsepower: Ranging from 170 hp (1.8T) to 340 hp (S4).
- Fuel Economy (EPA Estimated):
- 2.0T FWD: Around 21 mpg city / 30 mpg highway.
- 3.0 V6 quattro: Around 17 mpg city / 24 mpg highway.
- S4 V8 quattro: Around 13 mpg city / 20 mpg highway.
- 0-60 Times (Approximate):
- 1.8T: Around 7.9 seconds.
- 3.0 quattro: Around 6.7 seconds.
- S4: Around 4.9 seconds.
- Towing Capacity: Not typically advertised or a primary feature for this class of vehicle. Generally not recommended for significant towing.
- Trim-Level Features:
- Base/1.8T: Standard features often included power windows and locks, cruise control, climate control, alloy wheels, and a basic audio system. Optional features could include leather upholstery, sunroof, and upgraded sound systems.
- 3.0 quattro: Added features like leather seating, power-adjustable front seats, automatic climate control, and often came standard with quattro all-wheel-drive.
- S4: Positioned as the performance variant, it featured sport seats, unique exterior styling cues (grille, wheels, bumpers), upgraded suspension and brakes, and a premium Bose sound system.
2004 Audi A4 Specifications
Vehicle Information
| Year | 2004 |
| Make | Audi |
| Model | A4 |
| Trim | - |
| Style | All-Wheel Drive |
| Type | Passenger Sedan |
| Category | Minicompact Car |
Manufacturing Details
| Made In | Germany |
| Manufacturing City | INGOLSTADT |
Dimensions
| Doors | 4-Door |
| Curb Weight | 4013 pounds |
| Gross Vehicle Weight Rating | - |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | 1.781000 4 |
| Engine Size | 1.7L |
| Engine Cylinders | 4 |
| Transmission | 5-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 5-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $34,290 |
| Invoice Price | $31,165 |
| Delivery Charges | $720 |
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What Problems Does the 2004 Audi A4 Have?
The 2004 Audi A4, while generally well-regarded for its driving dynamics and upscale interior, is not without its common mechanical quirks. A frequent issue reported by owners is related to the ignition system. Ignition coils are known to fail prematurely, leading to misfires and rough idling. This is a common problem across many Audi models of this era. Another notable concern is the mass airflow sensor (MAF), which can become dirty or fail, affecting engine performance and fuel economy. Owners often report needing to clean or replace this component.
Oil leaks are also a significant concern. These can stem from various sources, including the valve cover gaskets, oil cooler seals, and the camshaft seals. Addressing these leaks is important to prevent engine damage and maintain proper oil levels. The PCV (Positive Crankcase Ventilation) system can also become clogged, leading to increased oil consumption and leaks.
For models equipped with the automatic transmission, particularly the multitronic CVT, there have been reports of transmission issues, including slipping or complete failure. While the manual transmission generally proves more robust, it's still advisable to ensure smooth shifting during a test drive.
While specific recalls for the 2004 model year are less prominent than for some other Audi vehicles, it's always recommended to check the NHTSA website for any outstanding recalls associated with the VIN. Long-term reliability can be good if consistent and proactive maintenance is performed. However, neglecting routine services, especially oil changes with the correct type of synthetic oil, can exacerbate some of these issues. The wear and tear on suspension components, such as control arms and bushings, are also common with higher mileage, contributing to a less precise ride and potential steering issues.
Oil leaks are also a significant concern. These can stem from various sources, including the valve cover gaskets, oil cooler seals, and the camshaft seals. Addressing these leaks is important to prevent engine damage and maintain proper oil levels. The PCV (Positive Crankcase Ventilation) system can also become clogged, leading to increased oil consumption and leaks.
For models equipped with the automatic transmission, particularly the multitronic CVT, there have been reports of transmission issues, including slipping or complete failure. While the manual transmission generally proves more robust, it's still advisable to ensure smooth shifting during a test drive.
While specific recalls for the 2004 model year are less prominent than for some other Audi vehicles, it's always recommended to check the NHTSA website for any outstanding recalls associated with the VIN. Long-term reliability can be good if consistent and proactive maintenance is performed. However, neglecting routine services, especially oil changes with the correct type of synthetic oil, can exacerbate some of these issues. The wear and tear on suspension components, such as control arms and bushings, are also common with higher mileage, contributing to a less precise ride and potential steering issues.
How long will the 2004 Audi A4 last?
With diligent maintenance, the 2004 Audi A4 can reasonably achieve 150,000 to 200,000 miles or more. Owner data suggests that cars receiving regular oil changes (using the correct synthetic oil), timely replacement of worn parts like ignition coils and sensors, and proactive attention to potential oil leaks can enjoy extended service life. The core engine and transmission (especially manual) are generally durable. However, neglecting maintenance, particularly oil changes, can lead to premature wear on seals and gaskets, exacerbating oil leak issues. The electrical system can also become a point of concern over time, with intermittent issues appearing as the car ages. Long-term durability is directly tied to the owner's commitment to upkeep.
What Technology & Safety Features are Included?
The 2004 Audi A4 offered a blend of convenience and safety features befitting its premium segment, though its technology was certainly of its time. Standard tech typically included a power-adjustable driver's seat, power windows and mirrors, and a multi-function trip computer. The entertainment system was usually a factory-installed AM/FM stereo with a CD player, and an optional Bose premium sound system was available on higher trims or as an upgrade, providing a richer audio experience. Audi's focus on interior quality meant a generally intuitive dashboard layout.
In terms of driver assistance, advanced features were limited compared to modern vehicles. Standard safety equipment included anti-lock brakes (ABS), electronic stability control (ESC) on quattro models, and front and side airbags. Traction control was also standard on most variants. Optional safety features might have included xenon headlamps for improved night vision.
Crash-test ratings for this generation of Audi A4 were generally positive. The Insurance Institute for Highway Safety (IIHS) awarded the 2004 A4 an "Acceptable" rating in the frontal offset crash test, citing good occupant protection but noting some potential for leg injuries. The National Highway Traffic Safety Administration (NHTSA) typically gave it four out of five stars in frontal and side-impact crash tests for front and rear passengers, respectively. While advanced driver-assistance systems like adaptive cruise control or lane-keeping assist were not available, the A4 provided a solid foundation of passive safety features and a comfortable, secure cabin environment for its era.
In terms of driver assistance, advanced features were limited compared to modern vehicles. Standard safety equipment included anti-lock brakes (ABS), electronic stability control (ESC) on quattro models, and front and side airbags. Traction control was also standard on most variants. Optional safety features might have included xenon headlamps for improved night vision.
Crash-test ratings for this generation of Audi A4 were generally positive. The Insurance Institute for Highway Safety (IIHS) awarded the 2004 A4 an "Acceptable" rating in the frontal offset crash test, citing good occupant protection but noting some potential for leg injuries. The National Highway Traffic Safety Administration (NHTSA) typically gave it four out of five stars in frontal and side-impact crash tests for front and rear passengers, respectively. While advanced driver-assistance systems like adaptive cruise control or lane-keeping assist were not available, the A4 provided a solid foundation of passive safety features and a comfortable, secure cabin environment for its era.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
In the meantime, feel free to explore the other sections for more content.
2004 Audi A4 Prices and Market Value
When new, the 2004 Audi A4 had an MSRP that ranged roughly from $27,000 for a base 1.8T sedan to upwards of $45,000 for a well-equipped S4 model. As is typical for luxury vehicles, the A4 experienced significant depreciation in its initial years. Currently, used market prices for the 2004 Audi A4 vary widely based on condition, mileage, trim level, and maintenance history. Expect to find them ranging from as low as $2,000 to $6,000 for well-maintained examples with lower mileage, while pristine or rare S4 models can command higher prices. Factors significantly affecting resale value include a documented service history, the presence of quattro all-wheel-drive, manual transmission, and overall cosmetic and mechanical condition. The S4 model, being the performance flagship, generally holds its value better than the standard trims.
2004 Audi A4 Cost of Ownership
The 2004 Audi A4 is generally considered moderately costly to own. Insurance premiums will likely be higher than for a mainstream sedan due to its luxury badge and performance potential, especially for the S4. Fuel costs can be substantial, particularly with the V6 and V8 engines, with EPA estimates being on the lower side. Maintenance costs are also a significant factor; while routine oil changes and basic services are comparable to other German cars, repairs for common issues like ignition coils, MAF sensors, and oil leaks can be expensive. Parts availability is good, but labor rates at European car specialists add to the expense. Overall, it's not an economical car to own, but the driving experience can justify the cost for enthusiasts who prioritize its premium feel and performance.
2004 Audi A4 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
16.6 gallons
City Mileage
16 miles/gallon
Highway Mileage
23 miles/gallon
2004 Audi A4 Safety Rating
NHTSA
IIHS
2004 Audi A4 Recalls & Defects
Exterior Lighting:headlights
Recall date
2005-03-15
Recall no.
05v096000
Source
NHTSA
Summary
ON Certain Passenger Vehicles, There IS A Possibility OF Xenon Headlamp Coating Degradation Over Time. THE Luminous Transmittance OF THE Headlamp MAY Decrease Over A Period OF Time.
Consequence
This Condition Could Affect A Driver's Field OF View, Increasing THE Risk OF A Crash.
Remedy
Dealers Will Replace THE Left and Right Xenon Headlamp Reflectors Free OF Charge. THE Recall Began ON April 11, 2005. Owners MAY Contact Audi AT 1-800-822-2834.
Notes
VW Recall NO. JH. 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.
Engine and Engine Cooling:engine
Recall date
2014-03-07
Recall no.
14e007000
Source
NHTSA
Summary
THE Gates Corporation (Gates) IS Recalling Certain Aftermarket Tru-Flow Water Pumps, Part Number TFW 41127, Sold AT Certain Napa Auto Parts And/Or Installed BY Automotive Service Technicians After November 1, 2013 (And Manufactured August 2013 Through October 2013) That Have A Black-Colored Pulley/Sprocket or DO NOT Have 'us9377' Stamped ON THE Water Pump Housing. These Service Replacement Parts Were Sold FOR USE IN Model Year 1999-2005 Audi A4, 2000-2006 Audi TT, 1998-2005 Volkswagen Beetle, 1999-2006 Golf, 1999-2008 and 2011-2013 Volkswagen Jetta, and 2000-2005 Volkswagen Passat. IN THE Affected Water Pumps, THE Pulley or Sprocket That Turns THE Timing Belt MAY Develop Microfractures Causing THE Timing Belt TO Fail.
Consequence
A Failure OF THE Timing Belt MAY Cause THE Engine TO Shut Down, Potentially Increasing THE Risk OF A Vehicle Crash.
Remedy
Gates Will Notify Owners, and Dealers Will Replace THE Water Pump, Free OF Charge. THE Recall Began During MAY 2014. Owners MAY Contact THE Gates Corporation AT 1-303-744-1911.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
AIR Bags:frontal:passenger Side:inflator Module
Recall date
2016-05-31
Recall no.
16v382000
Source
NHTSA
Summary
Volkswagen Group OF America, Inc. (Volkswagen) IS Recalling Certain Model Year 2004-2008 Audi A4, and 2005-2011 Audi A6 Vehicles Originally Sold, or Ever Registered, IN Alabama, California, Florida, Georgia, Hawaii, Louisiana, Mississippi, South Carolina, Texas, Puerto Rico, American Samoa, Guam, THE Northern Mariana Islands (Saipan), and THE U.s. Virgin Islands, or "zone A." Additionally, Unless Included IN "zone A" Above, Volkswagen IS Recalling Certain Model Year 2004-2008 Audi A4, and 2005-2008 Audi A6 Vehicles Originally Sold, or Ever Registered, IN Arizona, Arkansas, Delaware, District OF Columbia, Illinois, Indiana, Kansas, Kentucky, Maryland, Missouri, Nebraska, Nevada, NEW Jersey, NEW Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, Tennessee, Virginia, and West Virginia, or "zone B." Lastly, Unless Included IN "zone A" or "zone B" Above, Volkswagen IS Recalling Model Year 2004 Audi A4 Vehicles Originally Sold, or Registered, IN Alaska, Colorado, Connecticut, Idaho, Iowa, Maine, Massachusetts, Michigan, Minnesota, Montana, NEW Hampshire, NEW York, North Dakota, Oregon, Rhode Island, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming. These Vehicles ARE Equipped With Certain AIR BAG Inflators Assembled AS Part OF THE Passenger Frontal AIR BAG Modules, and Used AS Original Equipment or Replacement Equipment. IN THE Event OF A Crash Necessitating Deployment OF THE Front AIR Bags, These Inflators MAY Rupture DUE TO Propellant Degradation Occurring After Long-term Exposure TO Absolute Humidity and Temperature Cycling.
Consequence
AN Inflator Rupture MAY Result IN Metal Fragments Striking THE Vehicle Occupants Resulting IN Serious Injury or Death.
Remedy
Audi Will Notify Owners, and Dealers Will Replace THE Passenger Frontal AIR BAG Inflator, Free OF Charge. THE Interim Owner Letters Were Sent TO Owners IN July 2016, and Will BE Sent A Second Letter Once Parts ARE Available. Owners MAY Contact Audi Customer Service AT 1-800-822-2834.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.safercar.gov.
2004 Audi A4 Insurance
Insurance for a 2004 Audi A4 is moderately priced, reflecting its status as a Passenger Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2004 Audi A4 Compare to Other Passenger Sedan?
The 2004 Audi A4 competed fiercely in the premium compact executive sedan market, primarily against the BMW 3 Series (E46 generation) and the Mercedes-Benz C-Class (W203 generation).
Performance: The Audi A4, especially with the 3.0 V6 and the S4's V8, offered strong performance. Its signature quattro all-wheel-drive system provided superior grip and handling stability, particularly in adverse weather, which was a key advantage over many rear-wheel-drive competitors. The BMW 3 Series, however, was often lauded for its sharper, more engaging driving dynamics and feedback, particularly the acclaimed 330i. The Mercedes-Benz C-Class offered a more comfort-oriented ride, with performance being less of a primary focus for its standard models.
Features: The A4 boasted a sophisticated and well-appointed interior with high-quality materials, often perceived as more modern and luxurious than its German counterparts at the time. Features like optional leather, advanced climate control, and a premium sound system were competitive. The BMW 3 Series offered a driver-focused cockpit, while the C-Class was known for its solid build and classic luxury feel.
Reliability: This is where the A4 faced its stiffest competition. Both the BMW 3 Series and Mercedes-Benz C-Class, while also having their own potential issues, were generally perceived to have a slight edge in long-term mechanical reliability compared to the A4, particularly concerning the frequent ignition coil and oil leak issues prevalent in the Audi. However, with diligent maintenance, the A4 can be reliable.
Price: At the time of release, pricing was generally competitive within the segment, with the A4 often positioned slightly below a comparable BMW 3 Series. Used market prices now reflect their age and perceived reliability. The A4 offers a strong value proposition on the used market if well-maintained.
Alternatives:
Performance: The Audi A4, especially with the 3.0 V6 and the S4's V8, offered strong performance. Its signature quattro all-wheel-drive system provided superior grip and handling stability, particularly in adverse weather, which was a key advantage over many rear-wheel-drive competitors. The BMW 3 Series, however, was often lauded for its sharper, more engaging driving dynamics and feedback, particularly the acclaimed 330i. The Mercedes-Benz C-Class offered a more comfort-oriented ride, with performance being less of a primary focus for its standard models.
Features: The A4 boasted a sophisticated and well-appointed interior with high-quality materials, often perceived as more modern and luxurious than its German counterparts at the time. Features like optional leather, advanced climate control, and a premium sound system were competitive. The BMW 3 Series offered a driver-focused cockpit, while the C-Class was known for its solid build and classic luxury feel.
Reliability: This is where the A4 faced its stiffest competition. Both the BMW 3 Series and Mercedes-Benz C-Class, while also having their own potential issues, were generally perceived to have a slight edge in long-term mechanical reliability compared to the A4, particularly concerning the frequent ignition coil and oil leak issues prevalent in the Audi. However, with diligent maintenance, the A4 can be reliable.
Price: At the time of release, pricing was generally competitive within the segment, with the A4 often positioned slightly below a comparable BMW 3 Series. Used market prices now reflect their age and perceived reliability. The A4 offers a strong value proposition on the used market if well-maintained.
Alternatives:
- Similar: 2004 BMW 3 Series (325i, 330i) - offers more engaging driving dynamics, potentially better long-term reliability, but often a less luxurious interior feel.
- Similar: 2004 Mercedes-Benz C-Class (C230, C320) - focuses more on comfort and refinement, less sporty than the A4 or 3 Series.
- Consider: 2004 Acura TL - offers strong V6 power, excellent reliability, and a good feature set for the price, though lacks the European premium cachet and AWD option.
Final Verdict: Is the 2004 Audi A4 a Good Passenger Sedan?
The 2004 Audi A4 is ideal for individuals seeking a stylish, comfortable, and capable premium sedan or wagon with the added security of all-wheel-drive, especially in regions with inclement weather. It's a good buy for those who appreciate refined interiors and European driving dynamics without necessarily needing the absolute sharpest handling. It is **worth buying** cautiously on the used market. Focus on well-maintained examples, ideally with a comprehensive service history. The 1.8T and 3.0 quattro trims offer a good balance of performance and relative affordability. The S4 is for enthusiasts prioritizing outright power but comes with higher running costs. Avoid neglected examples, as repair costs can quickly outweigh the purchase price. Buying a used A4 requires a commitment to potentially higher maintenance expenses than mainstream vehicles.
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