Other engine problem on the 2006 BMW 3 Series
Only 4 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 other engine problem gets reported
There are 5 reports of other engine problem on the 2006 BMW 3 Series, 4 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 95,000 miles. It is the 11th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 82,928 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 $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 6 model years of this car. It shows up earliest on the 2013, at a median of 1,700 miles, and latest on the 2000 at 110,000 miles.
By volume the 2007 carries the most reports, with 15; the 2006 has 5. 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 have a 2006 325i sedan with 55,856 miles on it. I took it in for a routine service on 4-18-2013. It has been maintained by only bmw dealerships in its lifetime with all required maintenance done on schedule. They called to notify me that upon inspection they had found the head bolt broken behind the oil filter housing, the oil filter housing gasket leaking and the drive belt tensioner leaking. I had not been experiencing any outward s+s of this problem. They quoted me $3400 to repair this. I was shocked that a car in such great condition would have such a problem at this mileage. I asked why this would happen and essentially was told it is unusual but does happen. They advised a repair in the future. I went home and researched this and found it has been a common problem in this model and that subsequently bmw has changed the type of bolt they use. So I thought I would call the customer service line to follow up on any assistance from bmw. Long story short they took the complaint but because I have a low mileage vehicle that has been outside of warranty for 3+ years they would offer no help. You know shame on bmw this is my 4th…
I was driving my vehicle on the highway in the left lane, trying to pass a car in the middle lane. After getting in front of the car in the middle lane, I tried to accelerate so I could re-enter the middle lane, but the car acted as if it slipped into neutral and would not accelerate. The engine growled as if it were in neutral. It kept driving, but would not accelerate, despite me stepping harder on the gas. This was potentially dangerous as there was a car immediately behind me, which could have rear ended me at over 60mph, and the car in the middle lane that I was trying to pass could have also hit me on the passenger side of my car. In researching this, many bmw owners have been complaining about this, and yet bmw has not issued an investigation or recall: http://www.consumeraffairs.com/automotive/bmw_trans.html there are 650 complaints regarding this problem at the above link. People should not be having transmission problems like this under 75k miles. *tr
Engine bolts - aluminum bolt heads were found by mechanic in engine compartment. Although mechanic has stated this does not pose safety risk, seems numerous customers with a bmw 3 series 2006 have experienced the aluminum bolt sheering off issue.
Also reported on the 2006 BMW 3 Series
Other body or interior problem
Airbag warning light or occupant sensor fault
Seat belt or retractor failure
Other electrical problem
Other wheel or tire problem
Airbag inflator rupture
How far this goes
This page is kept out of search results because 5 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 5 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 2006 BMW 3 Series?
Across 4 owner reports that included an odometer reading, half were filed by 85,000 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 other engine problem on the 2006 BMW 3 Series?
5 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