Other engine problem on the 2004 BMW 530I
Only 5 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 6 reports of other engine problem on the 2004 BMW 530I, 5 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 8th most-reported problem on this model year.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| — | — | 40,000 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
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 4 model years of this car. It shows up earliest on the 2004, at a median of 40,000 miles, and latest on the 2001 at 150,000 miles.
By volume the 2006 carries the most reports, with 11; the 2004 has 6. 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.
This 2004 bmw 545i car has a problem which causes emissions warning light to come on frequently and the subsequent fuel mileage to be reduced in half. The dealership is unable to permanently fix the problem -each attempt to fix the problem lasts for only about one month. It as been to the dealer approximately 8 times for this condition and is clearly harming the environment. I have also been in contact with the regional office and they are of no help. *tr
Bmw x5 accelerator failed to respond after stop at traffic lights. It moved forward slowly for about 20 yds. Before deciding to engage...this happened three times, consecutively, at the end of drive home. Around noon on tuesday october 14, 2008. The day before the internal door lock button failed to function. Called bmw dealership and had it towed. Bmw continue to test but was informed last evening that there appeared to be nothing wrong with vehicle according to the computer! This is a major safety issue and bmw [central] have not been supportive so far. I have asked that the car be fixed and that I be supplied with a loaner until then. *tr
In july my car was short of oil and the following parts were replaced cyclone seplerator with updated kit and replaced separator with updated parts including dipstick tube. Had oil changed on 9/16/11, on road at 2:00 a.m. In the morning and the oil level low light came on again. Had to pull off the road for fear of perm. Damage to engine. In town where there were no stores open to buy oil,I though the oil leakage situation was taken care of. Added 1.5 quarts of oil, returned home to take it back to dealer with the mileage 69731 and it was a quart short. They stated there were no leaks and I was informed per sib 110584 1 quart of oil is allowed to be consumed per 750 miles. I informed the dealer this car never consumed oil before. Had I known that it consumed oil I would not have paid 1308.00 to replace the parts. I would have traded the car. Very disappointed and this could be dangerous. *tr
Also reported on the 2004 BMW 530I
Other body or interior problem
Other electrical problem
Airbag warning light or occupant sensor fault
Seat belt or retractor failure
Other steering problem
Overheating
How far this goes
This page is kept out of search results because 6 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 6 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 2004 BMW 530I?
Across 5 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 other engine problem on the 2004 BMW 530I?
6 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