BMW bulletin B370124
What it saysWhile driving at low speeds (15-40 mph) on flat road surfaces, a knocking noise from the front axle may beheard during steering wheel movements. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Jul 13, 2024, received Jul 25, 2024, about the power train. It names 8 model years (2023–2025). 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 communicationWhile driving at low speeds (15-40 mph) on flat road surfaces, a knocking noise from the front axle may beheard during steering wheel movements.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B370124 | Service bulletin | Jul 13, 2024 | 11005226 | PDF, 167 KB |
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 8 model years this bulletin names have filed 92 complaints with NHTSA since 2015. 7 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.
While driving in heavy highway traffic at approximately 5–10 mph, the vehicle suddenly displayed a red warning message and symbol in the driver’s gauge cluster indicating the car was shutting down. About 15–20 seconds later, propulsion was completely lost, although power steering and braking remained available.
2024 BMW i5 · Power Train · filed with NHTSA Sep 12, 2025 · ODI 11686791
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
Vehicle History & Initial Defect: I took delivery of a used 2025 BMW i5 in November 2025 (~1025 mi). Upon delivery, the vehicle immediately displayed a persistent "Acoustic Pedestrian Warning" failure. This was a direct violation of FMVSS No. 141 (Minimum Sound Requirements for Hybrid and EV).
2025 BMW i5 · Power Train · filed with NHTSA Apr 6, 2026 · ODI 11729328
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 group3 other manufacturer communications filed against these BMW models under the same component group (power train), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B330124 | Service bulletin | Jun 6, 2026 | The vehicle will no longer move when put into gear. There may also be loud noise coming from the HEAT*(electric drivetrain)/Rear axles. *Ger… |
| 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… |
| 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… |
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 B370124 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 B370124 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 B370124 cover?
The manufacturer filed it against 8 model years: 2024 BMW 7 Series, 2023 BMW 7 Series, 2024 BMW XM, 2023 BMW XM, 2025 BMW i5, 2024 BMW i5 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.