2004 Audi A4 Problems, Complaints & Recalls

Source: NHTSA · Updated May 5, 2023 · 189 owner complaints analyzed

Compared with other A4 years
Far more complaints than other years 7th of 31 for complaints
NHTSA crash rating
Not rated

Owners have filed 189 complaints with NHTSA about the 2004 Audi A4. That ranks 7th out of 31 A4 model years for complaints. The most reported problem area is fuel system, gasoline (46 complaints, 24%), typically at around 61,000 miles. Complaints mention 8 crashes, 3 fires, 6 injuries. There are 2 safety recalls covering this model year. NHTSA has opened 1 defect investigation involving it.

Audi A4
Audi A4 B9 in Stuttgart-Vaihingen. Representative photo; appearance varies by model year. Photo: Alexander-93, CC BY-SA 4.0, via Wikimedia Commons.

Complaints are unverified owner reports and are not adjusted for sales volume.

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Most common 2004 Audi A4 problems

Complaints grouped by the part of the car owners reported, with the median mileage when the problem happened.

Fuel System, Gasoline46 · ~61,000 mi
Air Bags26 · ~78,224 mi
Engine and Engine Cooling18 · ~55,900 mi
Tires16 · ~6,500 mi
Vehicle Speed Control16 · ~48,500 mi
Visibility16 · ~53,000 mi
Electrical System15 · ~62,242 mi
Exterior Lighting14 · ~80,000 mi
Power Train12 · ~41,000 mi
Engine7 · ~109,750 mi
Problem areaComplaintsShareMedian milesOwners mention mostTypical repair cost
Fuel System, Gasoline4624%61,000——
Air Bags2614%78,224——
Engine and Engine Cooling1810%55,900——
Tires168%6,500——
Vehicle Speed Control168%48,500——
Visibility168%53,000——
Electrical System158%62,242——
Exterior Lighting147%80,000——
Power Train126%41,000——
Engine74%109,750——
Unknown or Other63%79,901——
Fuel/propulsion System53%90,700——
Fuel System, Other53%82,000——
Service Brakes, Hydraulic42%48,250——
Structure42%10,746——
Equipment32%5,930——
Steering32%47,000——
Seat Belts11%32,000——
Service Brakes11%46,946——
Suspension11%2,389——

One complaint can list several problem areas, so shares can add up to more than 100%.

Complaints by year received

Peak: 2010, with 32 complaints
2004: 172004172005: 882006: 122006122007: 12122008: 272008272009: 24242010: 322010322011: 16162012: 8201282013: 332014: 6201462015: 442016: 7201672017: 112018: 4201842019: 112020: 3202032021: 222022: 1202212023: 11

n = 189 complaints · Source: NHTSA

2004 Audi A4 recalls (2)

Tap a recall to see the problem, the risk and the fix.

Air bags:frontal:passenger side:inflator moduleJun 1, 2016 · NHTSA campaign 16V382000 · 194,453 vehicles

Problem: 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.

Risk: An inflator rupture may result in metal fragments striking the vehicle occupants resulting in serious injury or death.

Fix: Audi will notify owners, and dealers will replace the passenger frontal air bag inflator, free of charge. Owner notification letters were mailed April 28, 2017. Owners may contact Audi customer service at 1-800-822-2834.

Exterior lighting:headlightsMar 15, 2005 · NHTSA campaign 05V096000 · 9,965 vehicles

Problem: 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.

Risk: This condition could affect a driver's field of view, increasing the risk of a crash.

Fix: 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.

To see whether a specific car still has an open recall, enter its VIN on NHTSA's official recall lookup. You can also decode a VIN here.

NHTSA defect investigations

  • Engine stalling - fuel pump failure (PE08027) — opened Apr 14, 2008, closed Aug 6, 2008.

Recent owner reports

Short excerpts of the latest complaints filed with NHTSA, with personal details removed. Full reports can be searched on NHTSA.gov.

******* delete voq ******* this complaint is being marked for deletion because it is requested by the consumer that they wish to have it removed*djr ******* delete voq *******

Air Bags · received May 5, 2023 · NHTSA complaint 11520694

This took place about a week ago. The car was parked in our driveway when the fire started. My husband had returned home just 15 minutes prior to the fire starting. I noticed there was smoke coming in our living room window. Then I looked at our security camas. And saw smoke pouring out from…

Electrical System · received Sep 16, 2022 · NHTSA complaint 11484914

The contact owns a 2004 Audi A4. The contact stated while driving approximately 35 MPH, the rear windshield became detached from the soft top. The vehicle was not taken to a dealer to be inspected. The manufacturer was informed of the failure and was awaiting a response. The failure mileage was…

Visibility · received Sep 29, 2021 · NHTSA complaint 11434910

PRNDS appeared in red on my dash and then started blinking. Went on line regarding this and read about a TCM switch or a lever switch malfunction.Have an appt with mechanic on 8/26/21. From what I have read we are looking at a cost prohibitive repair of several thousands of dollars. Does Audi have…

Electrical System · received Aug 23, 2021 · NHTSA complaint 11430229

I was driving to jacksonville florida and car had shut off on me on the highway in yulee florida i was stuck on the highway for 7 hrs my car is stuck in florida

Air Bags · received Oct 27, 2020 · NHTSA complaint 11366758

Other Audi A4 years

← 2003 A4 · 2005 A4 →

See all Audi A4 problems by year, every Audi model, or the Audi VIN decoder.

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Frequently asked questions

What are the most common problems with the 2004 Audi A4?

Owners most often report fuel system, gasoline, air bags, engine and engine cooling problems. The top one, fuel system, gasoline, accounts for 46 complaints.

Was there a recall on the 2004 Audi A4?

Yes, 2 safety recalls. Enter your VIN at NHTSA.gov to check whether the repairs were done on your car.

Was the 2004 Audi A4 a good year?

Complaint data can't fully answer that, because counts aren't adjusted for sales. Compared with other A4 model years, the 2004 has far more complaints than most years. Always get a pre-purchase inspection and check the VIN for open recalls.