When engine is under load with a faulty fuel pump, the engine will stall whilst moving without turning motor off. Only remedy is to turn engine off and on, since the fuel pump will not start itself back on after the stall.
2004 Audi A4 fuel system problems
56 complaints (30% of all complaints for this car). Typical mileage when it fails: 62,000. 1 crash reported.
- owner complaints
- 56
- of this car's complaints
- 30%
- typical mileage
- 62,000
- crashes
- 1
- recalls
- 0
Which part fails
- Delivery: fuel pump13
- Storage: tank assembly: filler pipe and cap1
At what mileage
Complaints by mileage at the time of the problem.
0k-25k
25k-50k
50k-75k
75k-100k
100k-125k
125k-150k
150k-175k
175k-200k
200k+
Audi A4 fuel system problems in other years
Specific symptoms reported on the 2004 Audi A4 fuel system
Phrases found in the owners' own descriptions, so one complaint can mention several symptoms.
Related recalls
No recalls on record for this model year.
Related investigations
Engine stalling - fuel pump failure
In response to odi's information request for pe08-027, volkswagen ag (vw) stated that it believes that the possible causal or contributory factors of the alleged defect in the subject vehicles could result from excessive accumulation of foreign materials in the fuel filter.in rare cases, the fuel filter could become clogged, which can cause increased pressure on the pump.vw indicated that engine stalls resulting from this condition are rare and would be preceded by symptoms such as reduced engine power, noise or hesitation.odi's analysis of complaint and warranty data determined that the rate of engine stall incidents resulting from fuel pump failure is low at approximately 0.2 percent after three years in service. On january 17, 2006, vw submitted a defect information report to odi concerning a safety recall to address a defect in the fuel pumps of approximately 74,000 model year (my) 2003 volkswagen passat (47,000), audi a4 (20,000) and audi a6 (7,000) vehicles built from september 2002 through march 2003 (the federal safety agency recall no. 06v‑017, vw recall nos. M7 for passat and jl for audi a4 and a6).according to vw, a sub-supplier experienced an unknown change in the material composition of the carbon-brush set used in the electric motor in the fuel pump, which could lead to increased wear of the carbon-brush sets, which in turn can lead to an inoperative fuel pump and, ultimately, stoppage of fuel supply to the engine.on july 23, 2007, vw expanded the scope of the recall to include vehicles manufactured from august 2002 through april 2003, adding another 34,358 vehicles to the original recall (24,801 volkswagen passat, 7,436 audi a4 and 2,121 audi a6 vehicles).odi assigned recall no. 07v‑375 to the amended recall report. The my 2004 audi a4 vehicles that are the subject of pe08-027 are not affected by the sub-supplier issue that prompted 06v‑017 and 07v‑375.production of the my 2004 vehicles began four months after the amended production range identified in 07v‑375.the fuel pump failures in the my 2004 vehicles have different causes than the defect identified in the prior recall populations and have occurred at much lower frequencies. Further investigation of this matter would not be an efficient allocation of agency resources.accordingly, this investigation is closed.the closing of this investigation does not constitute a find by the federal safety agency that a safety-related defect does not exist.the agency will continue to monitor complaints and other information relating to the alleged defect in the subject vehicles and take further action in the future if warranted.
PE08027
What 2004 Audi A4 owners say
Most recent owner complaints, unedited.
Was driving on freeway for a few hours during which car was running fine, and car suddenly lost power just after I got off freeway and approached a mountain road incline. There was no warning light, or prior symptoms to engine failure, it just stopped. With help, I was able to get car out of the middle of the road and to safety. Tried to troubleshoot, used engine error code reader, and no fault codes found. Performed basics checked for potential fuel vapor lock due to altitude; checked oil, coolant and fuel levels- and all levels were ok. Battery was functioning - as radio, lights worked. Car has been consistently serviced and maintenance was current. Car was towed to nearest dealer, diagnosis by dealer fuel pump failure due to clogged fuel filter. My issue is that audi does not indicate service maintenance for fuel filter. There is not any maintenance recommendations or guidance in either the owner's manual or published list of recommended services to replace or check filer. There also were not any warning lights, fault codes or indications to watch for. I feel that it is negligent of the manufacturer to not indicate any service interval to change fuel filter in order to prevent fuel pump failure, and to ensure the safe operating conditions of the vehicle. The car lost power on a winding mountain road and put me at danger without warning. I am curious if this fuel pump incident could be associated with known fuel pump issues, the federal safety agency #pe08027. Key side notes, while I am the second registered owner, this car was purchased by my father who was the original owner, but for insurance and registration purposes the vehicle was transferred over to me, but I have all original records of the vehicle and can verify all maintenance services have been performed.
I was driving my 2004 audi a4 (1.8, convertible) on a local road at approx 30mph, when the accelerator suddenly dropped from under my foot and the car accelerated very rapidly. It felt like the cruise control had come on by itself (the cruise control was completely off at the time). I put the car in neutral and pulled over. When I shut the car off, the gas pedal popped up and felt normal. When I turned the car back on several times, it continued to immediately accelerate all the way with the gas pedal dropping to the floor. The car is now being towed to a mechanic. Had I been in a tighter situation at the time, it could've been ugly.
I'm 26, mother of a 9 yr & 14 mo old. Currently, I'm unemployed and I can't afford to pay $2,500 to repair the fuel pump that audi initially installed in my car. I was so excited to buy this audi used 4 yrs ago with 80,000 miles. This has been the most costly and the most unsafe vehicle I have owned...stalling out was not fun and very scary. Audi dealerships have been trained well to deny owning up to the car's defects. Is audi waiting for an accident to happen and people/children die? I guess the cost of paying for the court cost when someone dies is not a big worry for the company - probably cost more to have the cars recalled & safely repaired than to pay for court & funeral cost. I'm sure audi has been aware of this problem since 2003 and refuse to own up to their 2003 mistake flowing over to the 2004 models. It makes no sense that audi won't "step up to the plate" and have a recall. Maybe the audi company really can't repair the car and the problem will always exist? I would hope they have smart engineers that could fix the problem. Audi really is coming across as having poor customer concerns for our safety. What a shame, I can barely make ends meet and now, I can't even afford to take my car out of the shop...but, maybe it's a blessing - at least, my children and I are safe by not driving that car. Come on audi - recall now before some dies!!! And, what is the vehicle safety folks doing for us??? I just an angry mother hoping someone will listen & with the belief that the federal safety agency can help...I wish I had never bought this car, I'm still making monthly payments for the car that I'm scared to drive now. I'm wondering by venting on this site, if audi even gets this information? This is a "no kidding" matter that should be taken seriously and fixed as soon as possible by the responsible company to show that they really care for their customers!
Fuel pump noisy and not working. Cant bear the noise as its too loud inside and outside. Replaced fuel filter still not use. Browsed through internet and saw its happening to all 2004 a4 models and no recalls from the manufacturer as its common in all a4 2004 models. Request to file an complaint on this issue and request manufacturer to recall fuel pump in all a4 2004 models.
Driving at 65mph on a busy highway and the car stalled out. Very dangerous situation. Power came back after a few seconds.
Fuel pump failure while driving on highway. Luckily, was able to exit, but potentially dangerous. Similar experience to the many other complaints already filed. Same model from previous year recalled for the exact same problem, but audi has not done so for 2004 which it should definitely do! Our car has less than 60,000 miles, and this should not be happening! Also had to replace coils before audi eventually recalled, but they did not refund the full.
I was driving on the highway and the car suddenly lost power without warning, due to fuel pump failure. I have seen a lot of complains about this defect. I think audi should take responsibility for this safety issue. The audi should recall the car to prevent this from happening to other audi owners, because it is very dangerous to loss power on the highway without any warning.
2004 audi a4 with intermittent fuel pump failure. On several occasions the car would stop running while driving and then restart after some time. The latest event occurred at the airport and almost caused an accident. I had the car towed to a repair shop and it was determined that the fuel pump was not operating resulting in $800 in repairs. This is a dangerous situation and appears to be a larger problem with this vehicle. A recall of the 2002-2003 did not capture these other vehicles which have the same problem. Since this can result in injury and/or death, its critical that the government investigate for recall. Audi will not take responsibility unless held accountable.
2004 audi a4 fuel pump failure causes car to stall. My car stalled on the freeway and almost caused a significant accident!
Questions about the 2004 Audi A4 fuel system
Does the 2004 Audi A4 have fuel system problems?
Owners have filed 56 complaints about the fuel system of the 2004 Audi A4, 30% of all its complaints, more than any other problem.
At what mileage do 2004 Audi A4 fuel system problems start?
The typical (median) mileage in owner complaints is 62,000 miles.
Was there a recall on the 2004 Audi A4 fuel system?
There is no recall for this problem on this model year.
What year does the Audi A4 have the most fuel system problems?
The Audi A4 model years with the most fuel system complaints are 2004 (56 complaints), 2003 (51 complaints) and 2005 (12 complaints).
Other 2004 Audi A4 problems
Airbags 26Engine 25Acceleration 16Tires 16Visibility 16Electrical 15Lights 14Transmission 12Brakes 5Body 4Steering 3Seat belts 1Suspension 1
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