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Other or unknownPart report

2004 Audi A4 Other or unknown Problems

Complaints
6about this part
Share
3%of 189 total for the year
Median mileage
79,901miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 6 complaints about the other or unknown of the 2004 Audi A4, 3% of the 189 complaints for this model year. Where a mileage was given, the median is 79,901 miles. 1 a fire, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“My vehicle started up fine and I was driving to work, I was idling at the red light and my car shut off and signaled the battery light. We tried to jump it thinking it was the battery like it signaled, and it wasnt so we had to tow it. The car still doesnt start. It cranks but wont start and I was in the middle of an intersection, no warning lights before hand at all.”

NHTSA complaint #11267983, filed 2019-10, 99,872 miles

“I have a brand new 2004 Audi a4avantquattro 1.8. On july 1, with 2389 miles on the car, I had a blowout of my right rear tire, which is a goodyear m&s r235/17 low profile high performance tire. I never had a sensation of hitting anything on the road, but had only seconds to get from the fast lane of I-5 in downtown sacramento, ca across 5 lanes of freeway traffic and around a caltrans maintenence crew on the shoulder, to safety. By the time I did, the tire tread had completely separated on both sides of the wheel 360 degrees. …”

NHTSA complaint #10080768, filed 2004-07, 2,389 miles

“Rear window of convertible soft top for 2004 Audi A4 cabriolet. An old issue often suffered by Audi cabriolets from 2003-2009. Claimed to be caused by the adhesive that Audi uses. This can be caused by keeping the car outside instead of in a garage as prolonged exposure to sunlight causes the adhesive to give away and fail, causing the rear window to separate from the outer layer of the top and drop. While the window is still technically attached to the inner layer of the top, the window no longer protects against water. …”

NHTSA complaint #10902055, filed 2016-08, 90,000 miles

“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 any responsibility? Apparently it is a common complaint with the A4 model. Felt loss of power when decelerating.”

NHTSA complaint #11430229, filed 2021-08

“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 underneath the hood of my car. We tried to put the fire out with our two hose system set up and it wouldn't go out. So we knew it was electrical. We couldn't get close enough to open the hood so I couldn't pour baking soda on it. …”

NHTSA complaint #11484914, filed 2022-09

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2023110%
2022350%
2021327%
20206047%
2019330%
20181840%
20171018%
201619%
2015211%
201426%
2013313%
201012%
200976%
200821%
200784%
200672%
200531%
200463%
200321%
200242%
200143%
200022%
199921%
199821%
199722%
199667%

Other parts of the 2004 Audi A4

Fuel system
56 complaints
Air bags
26 complaints
Engine cooling
18 complaints
Tires
16 complaints
Vehicle speed control
16 complaints
Visibility (wipers, defrost, mirrors)
16 complaints
Electrical system
15 complaints
Exterior lighting
14 complaints
Transmission and drivetrain
12 complaints
Engine
7 complaints
Brakes
5 complaints
Body and structure
4 complaints

← All problems reported for the 2004 Audi A4

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology