Fuel tank, filler or EVAP failure on the 2005 Subaru Legacy
When fuel tank, filler or evap failure gets reported
Owners of the 2005 Subaru Legacy report fuel tank, filler or EVAP failure at a median of 125,000 miles. A quarter of the reports come in before 115,000 miles and a quarter after 140,000 miles, from 8 reports that carried an odometer reading.
A part like this is normally expected to survive 88,000 miles. It is the 11th most-reported problem on this model year.
The mileage distribution
The reported range runs from 100,000 miles at the tenth percentile to 170,000 miles at the ninetieth, a spread of 70,343 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.
0% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 101,500 miles | 115,000 miles | 125,662 miles | 137,500 miles | 171,843 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 $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 7 model years of this car. It shows up earliest on the 2015, at a median of 2,000 miles, and latest on the 2008 at 155,000 miles.
By volume the 2005 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.
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.
Tl* the contact owns a 2005 subaru legacy. While operating the vehicle, the brake sensor suddenly illuminated. Moments later, the bakes failed and the brake pedal extended to the floor. The vehicle was towed to the dealer where it was diagnosed that the brake lines positioned above the fuel tank were corroded and caused the brake fluid to leak out. The contact was informed by the dealer that the vehicle was previously serviced per NHTSA campaign number: 04v274000 (service brakes). The manufacturer was notified. The failure mileage was 129,500.
Fuel leaking from top of gas tank. No collison. Gas smell began as check engine light lit and cruise control light started slow blink. Smell has gradually grown stronger. Smell strongest on the passenger side. Smell sometimes enters car interior.
Wqk-47 brake line corrosion recall work was done to "rustproof" the line only 3 years ago. The line is currently rusted through in the back above the fuel tank after stopping at a light on 7/21/18. Search online shows the same issues reported by other drivers. Lines need to be replaced and recall of rustproofing does not hold.
Also reported on the 2005 Subaru Legacy
Turbocharger or supercharger failure
Other engine problem
Wiring harness or short circuit
Other electrical problem
Other fuel system problem
Fuel leak or fuel odor
How far this goes
Complaints are voluntary, so 8 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 2005 Subaru Legacy?
Across 8 owner reports that included an odometer reading, half were filed by 125,000 miles. A quarter were filed before 115,000 miles and a quarter after 140,000 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 2005 Subaru Legacy?
8 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