Other engine problem on the 2010 Subaru Legacy
1 crash 1 death 2 of the 17 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 other engine problem gets reported
Owners of the 2010 Subaru Legacy report other engine problem at a median of 70,000 miles. A quarter of the reports come in before 35,000 miles and a quarter after 100,000 miles, from 14 reports that carried an odometer reading.
A part like this is normally expected to survive 95,000 miles. It is the 3rd most-reported problem on this model year.
The mileage distribution
The reported range runs from 2,200 miles at the tenth percentile to 115,000 miles at the ninetieth, a spread of 112,050 miles across the middle 80% of reports.
When the reports scatter this far, the mileage is telling you about how these cars were driven more than about the part itself.
29% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 2,190 miles | 34,750 miles | 72,225 miles | 99,875 miles | 114,240 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 and 1 a fatality are 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 $300–$4,000 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 22 model years of this car. It shows up earliest on the 2017, at a median of 800 miles, and latest on the 1997 at 195,000 miles.
By volume the 2011 carries the most reports, with 19; the 2010 has 17. 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.
I bought a new 2010 subaru and it makes an abnormal noise. I have had it in to be repaired and was told there is not fix to the problem. Purchased 8/19/09 from shortline subaru. I have discussed with subaru of america and they have no date to fix this problem and have not acknowledged there my certified letter to them. They told me this is a widespread problem and there is no notification to the public of this and I think the public deserves to know they are selling a defective car. *tr
Start car , engine cold, or at least not fully warmed up. While driving, push clutch in , take foot off gas to shift. Engine revs drop to near zero. Engine stalls. Its intermittent. But some anecdotal evidence that hot weather exaggerates the issue. Seems to happen less when engine is fully warmed up. Dealer has recreated the problem, but said they can do nothing about fixing it. This car has died in intersections twice and also on open road in traffic. *tr
Engine has stalled (completely shut down) 5 times at low RPM, leaving all systems off, including power steering. Conditions of each stall: low RPM, vehicle decelerating, clutch engaged, shifter in neutral, hot ambient air temperature, air conditioner on. More prevalent (4 out of 5 occurrences) when engine is cold (within minutes of starting). Engine restarts normally. This is a safety concern, as the stalls have occurred twice while performing a turn across oncoming traffic. *tr
Also reported on the 2010 Subaru Legacy
CVT failure
Other powertrain problem
Torque converter failure
Parking brake failure
Other steering problem
Control arm, ball joint or bushing failure
How far this goes
Complaints are voluntary, so 17 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 other engine problem happen on the 2010 Subaru Legacy?
Across 14 owner reports that included an odometer reading, half were filed by 70,000 miles. A quarter were filed before 35,000 miles and a quarter after 100,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other engine problem on the 2010 Subaru Legacy?
17 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