Complete transmission failure on the 2004 Mercury Sable
Only 2 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.
When complete transmission failure gets reported
There are 2 reports of complete transmission failure on the 2004 Mercury Sable, 2 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 98,000 miles. It is the 12th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 39,750 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 $2,800–$8,000 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.
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 6 model years of this car. It shows up earliest on the 2001, at a median of 35,000 miles, and latest on the 1998 at 125,000 miles.
By volume the 1996 carries the most reports, with 14; the 2004 has 0. 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 complaint is for a 2004 mercury sable sl prem wagon with a 4f50n transmission. It has approx 18500 miles. While driving close to home, the dash 'transmission' light came on, but almost instantly went off. I called the dealer, who I use for maintenance and repair. They advised it might have been a fluke or nothing, to see what happened next time. The next day I backed the car out of my driveway,no light came on. I started to drive, the hill, the light came on and immediately the car stopped moving forward. We had it towed to the dealer and have been told the transmission is bad, that it must be replaced at a cost to us of over $3,000. This transmission failed without expectation and suddenly. If this had happened in traffic, I could have had a serious accident. Vehicle is at the dealer. This seems to fit in with the problems indicated in NHTSA action no. Ea09016. *tr
Without warning I experienced a loss of power with my 2004 mercury sable. After driving my car approximately 46 miles (I live 47 miles from job) I came to a stop sign and when I went to proceed through the stop sign, I was not able to do so. I had lost forward and reverse gears and the car would not move. There were no warning signs. No slipping, no banging, no grinding or any other noises that almost always are associated with transmission failure. I had the car towed to a transmission shop (aamco of mineola, ny) and the transmission was replaced. I never in all my 32 years of driving had a transmission fail in the manner that this transmission did. I also truly felt it was a torque converter or input shaft failure but I am not a mechanic (I do have a good knowledge of how a car and it's components work) and just decided to get the transmission fixed. I did not think much about this until I received a notice that my ford freestar is involved in a recall (11s25/NHTSA recall 12v-006) which described the same failure. It just so happens that it is also a model year 2004 and is equipped with the same model transmission (ax4s). I am…
Also reported on the 2004 Mercury Sable
Other speed control problem
Other powertrain problem
Other brake problem
Shifter, linkage or stuck-in-park failure
Seat belt or retractor failure
Tail light, brake light or signal failure
How far this goes
This page is kept out of search results because 2 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 2 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 complete transmission failure happen on the 2004 Mercury Sable?
Across 2 owner reports that included an odometer reading, half were filed by 40,000 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 complete transmission failure on the 2004 Mercury Sable?
2 reports have been filed with NHTSA, about 0.2 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