Fuel tank, filler or EVAP failure on the 2003 Volkswagen Passat
1 crash 1 of the 16 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When fuel tank, filler or evap failure gets reported
Owners of the 2003 Volkswagen Passat report fuel tank, filler or EVAP failure at a median of 85,000 miles. A quarter of the reports come in before 60,000 miles and a quarter after 110,000 miles, from 15 reports that carried an odometer reading.
A part like this is normally expected to survive 88,000 miles. It is the 13th most-reported problem on this model year.
The mileage distribution
The reported range runs from 35,000 miles at the tenth percentile to 130,000 miles at the ninetieth, a spread of 97,012 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
13% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 34,988 miles | 58,250 miles | 82,500 miles | 111,000 miles | 132,000 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
Of these reports, 1 a crash is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $250–$1,800 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.
The same failure on other years
The same failure is reported on 8 model years of this car. It shows up earliest on the 2013, at a median of 15,000 miles, and latest on the 2001 at 135,000 miles.
By volume the 2002 carries the most reports, with 27; the 2003 has 16. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
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.
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.
My 2003 passat with 46,000 miles and regular 5,000 miles service visits recently had two major problems. The alternator went bad and was producing nearly twice the voltage. There were no service bulletins or recalls on this item and was fixed at a significant cost to me. Next was the fuel tank. I first experienced an odor which turned out to be a leak in the gas tank. I am working with an excellent volkswagen service business which is not a dealership. Vw america will only take the word of a licensed dealer. The defective tank is currently being replaced at a very significant cost to me. There are no service bulletins or recalls on my VIN. I understand that a local dealership has had to replace a few of these. This is a very nice car developing a bad reputation. I have safety concerns with this car and wonder what will happen next. *jb
My 2003 passat with 46,000 miles and regular 5,000 miles service visits recently had two major problems. The alternator went bad and was producing nearly twice the voltage. There were no service bulletins or recalls on this item and was fixed at a significant cost to me. Next was the fuel tank. I first experienced an odor which turned out to be a leak in the gas tank. I am working with an excellent volkswagen service business which is not a dealership. Vw america will only take the word of a licensed dealer. The defective tank is currently being replaced at a very significant cost to me. There are no service bulletins or recalls on my VIN. I understand that a local dealership has had to replace a few of these. This is a very nice car developing a bad reputation. I have safety concerns with this car and wonder what will happen next. *jb
Tl*the contact owns a 2003 volkswagen passat. While parked in the garage, the contact smelled a strong gaseous odor coming from the vehicle. She examined the vehicle and adjusted the fuel cap. The smell still lingered. The contact removed the vehicle from the garage and parked it on the street. The vehicle was then towed to the dealer and they stated that the fuel tank valve failed and the fuel tank needed to be replaced. No repairs have been made. The current mileage was 96,703 and failure mileage was 96,670. *updated 12/27/07 *lj the consumer stated the vehicle was paid in full by the manufacturer on october 8, 2007. Updated 12/12/07 *tr
Also reported on the 2003 Volkswagen Passat
Fuel pump failure
Other body or interior problem
Other engine problem
Other electrical problem
Misfire or rough idle
Control module (ECM/PCM/BCM) failure
How far this goes
Complaints are voluntary, so 16 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 fuel tank, filler or evap failure happen on the 2003 Volkswagen Passat?
Across 15 owner reports that included an odometer reading, half were filed by 85,000 miles. A quarter were filed before 60,000 miles and a quarter after 110,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is fuel tank, filler or evap failure on the 2003 Volkswagen Passat?
16 reports have been filed with NHTSA, about 0.5 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