BMW bulletin B330124
What it saysThe vehicle will no longer move when put into gear. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Jun 6, 2026, received Jul 25, 2024, about the power train — 2 documents under this number. It names 7 model years (2024–2025). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThe vehicle will no longer move when put into gear. There may also be loud noise coming from the HEAT*(electric drivetrain)/Rear axles. *German acronym for Highly integrated electric drivetrain topology- Hochintegrierte Elektrifizierte Antriebs-Topologie
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B330124 | Service bulletin | Jun 6, 2026 | 11034454 | PDF, 754 KB |
| B330124 | Service bulletin | Jul 24, 2024 | 11005225 | PDF, 744 KB |
What the document itself lists
Labour operation and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 61 99 000 | Work time for the Remote Software Upgrade performed (RSU status: Ready to be… | 2 FRU |
Read by machine from the document NHTSA serves (4 pages), read Sep 30, 2026. A part number is shown only where it matches BMW’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 7 model years this bulletin names have filed 110 complaints with NHTSA since 2015. 15 of them name Power Train — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
UNINTENDED ACCELERATION The car accelerated unintentionally at 25 mph just before a red light at an intersection. It simultaneously started a bonging alarm, and showed a large red triangle on the dash telling us to pull over and to not drive the car thank God we were able to do before the intersection as we would have crossed a busy…
2025 BMW iX · Power Train · filed with NHTSA Mar 19, 2025 · ODI 11649312
Drove the car and parked it. Went into the store and got back into the car. Turned the car on and it had an emergency light saying a drive train malfunction had occurred and that the car could not drive and had to be towed to the dealer for repair. Turned on and off the car. It still had the malfunction.
2024 BMW iX · Power Train · filed with NHTSA Sep 25, 2024 · ODI 11616415
The car shut off unexpectedly while driving down a main road. There was first a power train warning, suggesting taking the car to the dealer and to drive cautiously. Then the car suddenly had an emergency power failure and the car shut completely off. Luckily I was able to coast into a subdivision.
2025 BMW i5 · Power Train · filed with NHTSA Mar 2, 2026 · ODI 11721496
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the power train
Source: same model, same component group4 other manufacturer communications filed against these BMW models under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B120523 | Service bulletin | Mar 6, 2026 | The customer states there is a Drivetrain Malfunction message displayed in the instrument cluster. In addition, the following fault memory… |
| B370124 | Service bulletin | Jul 13, 2024 | While driving at low speeds (15-40 mph) on flat road surfaces, a knocking noise from the front axle may beheard during steering wheel moveme… |
| MCAS4023 | Service bulletin | Sep 29, 2023 | BMW AG has requested the inspection of all dealer stock of the following part number(s) listed below to ensure the spacer is conformed to d… |
| B120422 | Service bulletin | Jul 1, 2023 | BMW AG has issued a Delivery Stop (effective December 1, 2022) on certain Model Year 2023 BMW iX SAV vehicles that were produced between Oct… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for BMW, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is BMW B330124 a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the B330124 repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way. Every BMW warranty extension on file lists the ones BMW has filed.
Which vehicles does B330124 cover?
The manufacturer filed it against 7 model years: 2025 BMW i4, 2024 BMW i4, 2025 BMW i5, 2025 BMW i7, 2024 BMW i7, 2025 BMW iX and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.