BMW bulletin B640225
What it saysThe customer states that when the AC system is on, there is a vibrating noise heard from within theinstrument panel. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Feb 28, 2025, received Mar 3, 2025, about the structure. It names 1 model year (2024). 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 customer states that when the AC system is on, there is a vibrating noise heard from within theinstrument panel. The noise is intermittent. The noise can be heard better outside the vehicle with the hood open.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B640225 | Service bulletin | Feb 28, 2025 | 11014666 | PDF, 426 KB |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 64 50 9 474 791 | — | — | |
| 64 50 9 874 025 | — | — | |
| 83 19 0 153 321 | Butyl tape Terostat | — | eBay Motors → |
Labour operations and the time the manufacturer allows
| Operation | Description | Time |
|---|---|---|
| 00 58 500 | Diagnosis Worktime Flat Rate (Plusposition) | 2 FRU |
| 00 58 000 | Diagnosis Worktime Flat Rate (Main work) | 3 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.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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.
Find the body for the 2024 i4 →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
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 1 model year this bulletin names have filed 26 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 structure
Source: same model, same component group4 other manufacturer communications filed against the BMW i4 under the same component group (structure), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B640626 | Service bulletin | Jul 24, 2026 | A “whistling” noise is heard from the centerconsole/instrument panel when using theheating and air conditioning (HVAC) system. Heard with th… |
| B510626 | Service bulletin | Apr 23, 2026 | While driving on rough surfaces, a “tapping” noise can be heard from the tailgate area |
| B514616 | Service bulletin | Feb 3, 2025 | CREAKING NOISE FROM TAILGATE LOCK.. During opening and closing of the tailgate, a creaking noise can be heard from the tailgate lock. Excess… |
| B511823 | Service bulletin | Aug 27, 2024 | A groaning noise is heard from the trunk when driving on rough roads. |
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 B640225 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 B640225 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 B640225 cover?
The manufacturer filed it against 1 model year: 2024 BMW i4. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.