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Electrical · 18 owner reports

Other electrical problem on the 2007 BMW 3 Series

1 crash 1 fire 2 of the 18 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 18
With an odometer reading 14
Reports per 1,000 built 0.6 per 1,000
Filed below 36,000 miles 29%
Mention a crash, fire or injury 2
Typical repair $250–$2,000
What it means when it happens Moderate
Rank among this year's problems 1st

When other electrical problem gets reported

Owners of the 2007 BMW 3 Series report other electrical problem at a median of 60,000 miles. A quarter of the reports come in before 25,000 miles and a quarter after 75,000 miles, from 14 reports that carried an odometer reading.

A part like this is normally expected to survive 85,000 miles. It is the 1st most-reported problem on this model year.

The mileage distribution

The reported range runs from 20,000 miles at the tenth percentile to 95,000 miles at the ninetieth, a spread of 75,700 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

Percentiles of the 14 odometer readings owners gave.
10th25thMedian 75th90th
21,300 miles 26,617 miles 59,156 miles 75,000 miles 97,000 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 and 1 a fire 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 9 model years of this car. It shows up earliest on the 2013, at a median of 35,000 miles, and latest on the 2002 at 125,000 miles.

By volume the 2007 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.

What owners wrote

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

Bmw e90 3 series sedan, after the door lock fuses blow there is no way to exit the vehicle except by a window. Is a failing in all these models and has had problems with bad latches that are being replaced as they fail under warranty, there should be a backup system for exiting the vehicle if the electrical system fails. *tr

22,156 miles NHTSA complaint 812403 filed 2010-09-07

Regular usage. One day, the central locking system simply died without warning and there is no alternative way of unlocking the passenger doors after the central locking system died. *kb

40,000 miles NHTSA complaint 870911 filed 2011-08-01

Door locks would not open on 3 of the doors; had to crawl from backseat to front seat to start car. Once got home, had to crawl back out via the back seat. Extremely hazardous safety condition due to if there was an accident, myself nor my passengers, especially young children, wouldn't be able to escape. Took vehicle to local bmw dealer and he stated this was not the "1st" time he had seen this type of issue. Approximate cost is between $700 to $1,000 to fix. Contacted bmw customer relations and they are investigating issue. *tr

20,000 miles NHTSA complaint 890608 filed 2011-11-15

Also reported on the 2007 BMW 3 Series

Other body or interior problem

16 reports median 50k

Other engine problem

15 reports median 81k

Airbag inflator rupture

9 reports median 85k

Headlight failure or clouding

9 reports median 45k

How far this goes

Complaints are voluntary, so 18 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 2007 BMW 3 Series?

Across 14 owner reports that included an odometer reading, half were filed by 60,000 miles. A quarter were filed before 25,000 miles and a quarter after 75,000 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 2007 BMW 3 Series?

18 reports have been filed with NHTSA, about 0.6 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