AtWhatMileage
Electrical · 17 owner reports

Other electrical problem on the 2009 MINI Cooper

5 fires 1 injury 6 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.

Reports of this failure 17
With an odometer reading 11
Reports per 1,000 built 4.9 per 1,000
Filed below 36,000 miles 55%
Mention a crash, fire or injury 6
Typical repair $250–$2,000
What it means when it happens Moderate
Rank among this year's problems 3rd

When other electrical problem gets reported

Owners of the 2009 MINI Cooper report other electrical problem at a median of 35,000 miles. A quarter of the reports come in before 20,000 miles and a quarter after 115,000 miles, from 11 reports that carried an odometer reading.

A part like this is normally expected to survive 85,000 miles. It is the 3rd most-reported problem on this model year.

The mileage distribution

The reported range runs from 20,000 miles at the tenth percentile to 130,000 miles at the ninetieth, a spread of 109,706 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.

55% of the dated reports were filed under 36,000 miles.

The whole distribution

Percentiles of the 11 odometer readings owners gave.
10th25thMedian 75th90th
18,794 miles 20,150 miles 34,000 miles 115,000 miles 128,500 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, 5 a fire and 1 an injury 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 $250–$2,000 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 13 model years of this car. It shows up earliest on the 2015, at a median of 15,000 miles, and latest on the 2011 at 95,000 miles.

By volume the 2011 carries the most reports, with 23; the 2009 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.

What owners wrote

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

I have a mini cooper 2009 which today marks a year of purchase, for about seven months has been leading the warranty service due to faulty electrical system, air bag passenger and the car turns off while using. Unfortunately to get the car to service never can diagnose the fault. *tr

21,700 miles NHTSA complaint 811190 filed 2010-08-31

Tl*the contact owns a 2009 mini cooper. While driving approximately 62 MPH, the contact noticed the speedometer was displaying a reading of 70 MPH. An authorized dealer was notified and the contact was informed the speedometers all of the vehicles were 10% off and there was no remedy. The failure mileage was 200 and the current mileage was approximately 21,000. The VIN was unavailable.

200 miles NHTSA complaint 819916 filed 2010-10-14

I stopped at a grocery store on the way home from work at approx. 6:30 pm on 11/17/11. I parked the car, turned off the ignition and locked it. When I exited the store approximately 13-15 minutes later, I found the car a smoldering shell surrounded by firefighters. It appeared to have spontaneously gone up in flames. Firefighters could not determine a cause. There was no indication of any problems with the car prior to this incident (car performed "normally" and there were no alarm or flash indicators on the console suggesting a problem.) *jb

18,794 miles NHTSA complaint 925074 filed 2012-06-26

Also reported on the 2009 MINI Cooper

Other engine problem

15 reports median 66k

Seat belt or retractor failure

13 reports median 71k

Overheating

5 reports median 110k

Head gasket failure

4 reports median 43k

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 electrical problem happen on the 2009 MINI Cooper?

Across 11 owner reports that included an odometer reading, half were filed by 35,000 miles. A quarter were filed before 20,000 miles and a quarter after 115,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.

How common is other electrical problem on the 2009 MINI Cooper?

17 reports have been filed with NHTSA, about 4.9 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