BMW bulletin B120323
What it saysBMW AG has issued a Delivery Stop effective June 6, 2023 on certain Model Year 2023 - 2024 BMW vehicles that were produced between October 26, 2022 and May 8, 2023. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Jun 1, 2023, received Jul 24, 2023, about the equipment. It names 68 model years (2017–2023). 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 communicationBMW AG has issued a Delivery Stop effective June 6, 2023 on certain Model Year 2023 - 2024 BMW vehicles that were produced between October 26, 2022 and May 8, 2023.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B120323 | Service bulletin | Jun 1, 2023 | 10239601 | not found |
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.
Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.
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Model years it names
Source: as the manufacturer filed themand 24 more on this site: 2021 BMW X4, 2020 BMW X4, 2019 BMW X4, 2023 BMW X5, 2022 BMW X5, 2021 BMW X5, 2020 BMW X5, 2019 BMW X5, 2022 BMW X6, 2021 BMW X6, 2020 BMW X6, 2023 BMW X7, 2022 BMW X7, 2021 BMW X7, 2020 BMW X7, 2019 BMW X7, 2023 BMW Z4, 2022 BMW Z4, 2021 BMW Z4, 2020 BMW Z4, 2019 BMW Z4, 2023 BMW i4, 2022 BMW i4, 2023 BMW i7.
Also filed against model years this site has no page for: 2019 BMW 540D; 2020 BMW 540D; 2021 BMW B7 Alpina; 2023 BMW M4 GT4.
A 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 64 model years this bulletin names have filed 2,187 complaints with NHTSA since 2015.
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 equipment
Source: same model, same component group32 other manufacturer communications filed against these BMW models under the same component group (equipment), newest first. The eight newest are listed; the rest are on the BMW list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B010122 | Service bulletin | Jan 21, 2026 | With the court's FINAL approval, BMW of North America, LLC (BMW NA) has entered into a nationwide settlement with the plaintiffs in the foll… |
| B011323 | Service bulletin | Mar 12, 2025 | BMW of North America, LLC (BMW NA) has a nationwide settlement with the plaintiffs in the following class action: Brightk Consulting, Inc.… |
| B610124 | Service bulletin | Jan 6, 2025 | When driving over rough surfaces, a low-frequency rattling noise can be heard inside the vehicle's cabin. The noise typically sounds as tho… |
| B610615 | Service bulletin | Dec 18, 2024 | Washer Fluid Reservoir Rattles While Driving on Rough Roads. Rattling noises heard from vicinity of glove box. The windshield washer reservo… |
| B640124 | Service bulletin | Jun 17, 2024 | A drumming noise is heard when the air conditioning system is operating. Service parts are not yet available for this repair. This bulletin… |
| B650121 | Service bulletin | Jun 12, 2024 | SPORADIC FAILURE OR CRACKING NOISE IN BASS SPEAKERS: No Bass or a cracking noise can be heard from the bass speakers. |
| B650421 | Service bulletin | Jun 4, 2024 | RETROFIT SATELLITE RADIO (OPTION CODE SA655): The affected vehicles were produced with Preparation BMW Satellite Radio (option code SA 693)… |
| B613233 | Service bulletin | Apr 16, 2024 | A small flap of sound insulation material may come into contact with some of the 12 V B+ cables at the remote B+ charging point terminal… |

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 B120323 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 B120323 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 B120323 cover?
The manufacturer filed it against 68 model years: 2023 BMW 2 Series, 2022 BMW 2 Series, 2021 BMW 2 Series, 2020 BMW 2 Series, 2023 BMW 3 Series, 2022 BMW 3 Series and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.