AtWhatMileage
Engine · 5 owner reports

Stalling while driving on the 2004 Audi A4

Only 5 reports for this mode came with an odometer reading, which is too few for percentiles to mean anything. The page is here because someone linked to it; treat the figures as anecdotes, and see the full report for this year instead.

Reports of this failure 5
With an odometer reading 5
Reports per 1,000 built 0.3 per 1,000
Filed below 36,000 miles 20%
Mention a crash, fire or injury 0
Typical repair $300–$2,500
What it means when it happens Critical
Rank among this year's problems 12th

When stalling while driving gets reported

There are 5 reports of stalling while driving on the 2004 Audi A4, 5 with a mileage attached. That is too few to place the failure on the odometer with any confidence.

A part like this is normally expected to survive 75,000 miles. It is the 12th most-reported problem on this model year.

The whole distribution

Percentiles of the 5 odometer readings owners gave.
10th25thMedian 75th90th
— — 43,570 miles — —

Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.

What a percentile can and cannot tell you here

These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.

What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.

Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.

What happens, and what it costs

Putting it right typically runs $300–$2,500 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.

This mode is classified as critical, which means a failure can leave the car unable to stop, steer, or stay out of the way of traffic. It is weighted accordingly in the risk score.

The same failure on other years

The same failure is reported on 4 model years of this car. It shows up earliest on the 2007, at a median of 30,000 miles, and latest on the 1999 at 85,000 miles.

By volume the 2004 is the worst of them, which makes this a problem of this specific year rather than of the model as a whole.

If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.

Median
  1. 1999 Audi A4 stalling while driving 83k
  2. 2001 Audi A4 stalling while driving 14k
  3. 2002 Audi A4 stalling while driving 10k
  4. 2003 Audi A4 stalling while driving 37k
  5. 2004 (this one) 44k
  6. 2005 Audi A4 stalling while driving 46k
  7. 2006 Audi A4 stalling while driving 38k
  8. 2007 Audi A4 stalling while driving 30k
  9. 2008 Audi A4 stalling while driving 68k
  10. 2020 Audi A4 stalling while driving
    no odometer readings given
    —

Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens

What owners wrote

Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.

Dt*: the contact stated while driving various speeds, the vehicle operated at a reduced speed and the engine stalled without warning. Additionally, upon initial acceleration the automatic transmission was sluggish while shifting gears. The vehicle was inspected by a dealer who determined the automatic transmission clutch body and fluid needed to be replaced. Afterwards, the problem persisted. The manufacturer was alerted. *ak updated 12/15/2006 - *nm

40,200 miles NHTSA complaint 603174 filed 2006-11-15

Loud buzzing noise coming from rear seat, sounded like bad motor bearings. Approximately 2 minutes later the engine stalled and was forced to stop vehicle without any power assistance from engine. The audi dealer found it was a faulty fuel pump, replaced with new fuel pump ok now. They indicated it was not covered in the 2003 fuel pump recall since my vehicle was an 04. *tr

76,750 miles NHTSA complaint 647605 filed 2007-11-27

Had one previous incident where the car stalled. It seemed this was cured by replacing the fuel filter. Six months later, the car died while being driven on the road. Engine stalled and would not restart. Car had to be towed to dealership. Dealership replaced fuel pump assembly. My car is a 2004 audi a4 3.0 quattro. The defect appears to be similar to the 2003 audi a4 recall. *tr

43,570 miles NHTSA complaint 652413 filed 2008-01-07

Also reported on the 2004 Audi A4

Fuel pump failure

48 reports median 63k

Other wheel or tire problem

14 reports median 15k

Other engine problem

13 reports median 68k

Headlight failure or clouding

10 reports median 75k

Other speed control problem

10 reports median 31k

How far this goes

This page is kept out of search results because 5 reports is not enough to publish percentiles from. It stays reachable because somebody looking at this exact car would rather see the reports than be told there are none.

Complaints are voluntary, so 5 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.

Questions this page answers

At what mileage does stalling while driving happen on the 2004 Audi A4?

Across 5 owner reports that included an odometer reading, half were filed by 45,000 miles. A quarter were filed before — and a quarter after —. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is stalling while driving on the 2004 Audi A4?

5 reports have been filed with NHTSA, about 0.3 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.

What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars

Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed