BMW bulletin B640525
What it saysThe customer states that the output air from one of the vehicle vent assemblies doesn’t match the desired temperature, will change temperature opposite of climate settings. 2. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Nov 14, 2025, received Apr 17, 2025, about the structure — 8 documents under this number. It names 2 model years (2025–2026). 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.
Get the next BMW X3 bulletin by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationWhat it applies to, as the document itself states it — the build window in the manufacturer’s own words, read by machine from the PDF NHTSA serves. The build date is on the certification label in the driver’s door jamb; the dealer settles a borderline vehicle by its VIN.
1. The customer states that the output air from one of the vehicle vent assemblies doesn’t match the desired temperature, will change temperature opposite of climate settings. 2. The customer states that the output air from one of the vehicle vent assemblies doesn’t match the desired temperature, nor change from Hot/Cold.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B640525 | Service bulletin | Nov 14, 2025 | 11025683 | PDF, 6,864 KB |
| B640525 | Service bulletin | Sep 8, 2025 | 11023116 | PDF, 6,817 KB |
| B640525 | Service bulletin | Aug 28, 2025 | 11022865 | PDF, 6,803 KB |
| B640525 | Service bulletin | Aug 11, 2025 | 11022113 | PDF, 4,942 KB |
| B640525 | Service bulletin | May 22, 2025 | 11018564 | PDF, 597 KB |
| B640525 | Service bulletin | May 15, 2025 | 11018520 | PDF, 4,846 KB |
| B640525 | Service bulletin | Apr 21, 2025 | 11017282 | PDF, 4,852 KB |
| B640525 | Service bulletin | Apr 9, 2025 | 11017086 | PDF, 4,848 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.
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 2026 X3 →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.
Email me new BMW bulletins for the X3
A weekly email, sent only in a week when BMW files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 60 complaints with NHTSA since 2015. 15 of them name Electrical System — 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.
On October 2, 2026, I was loading my dogs into the cargo area of my new 2026 BMW X3 x drive with the power liftgate fully open. The liftgate closed and struck me on the head. I was not touching any control. The gate was stationary before it descended, while I was lifting my 2nd dog into the vehicle.
2026 BMW X3 · Electrical System · filed with NHTSA Oct 18, 2026 · ODI 11771897
I am submitting a safety complaint regarding a recurring infotainment system failure involving the 2025/2026 BMW X3. While driving, the center display screen suddenly blacks out, which creates a serious safety hazard. This issue first occurred with my personal BMW X3.
2025 BMW X3 · Electrical System · filed with NHTSA Dec 31, 2025 · ODI 11708119
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 group32 other manufacturer communications filed against the BMW X3 under the same component group (structure), newest first. The eight newest are listed; the rest are on the BMW list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| 0051570600 | Service campaign | Sep 24, 2026 | A gap between the rear left door seal and the side frame may allow moisture to enter. This can cause waterto splash onto occupants when the… |
| B511125 | Service bulletin | Sep 21, 2026 | When pulling on the hood (highlighted inorange in the top photo) release lever… |
| B010226DCS | Other | Aug 28, 2026 | BMW Notice of the Court’s Final Approval for Shark-Fin Antenna Settlement (X3, X4, X5, X6, X7) |
| B010226 | Service bulletin | Aug 25, 2026 | Rear Roof Antenna Shark Fin Cover Sealing Issue |
| B064226 | Other | Aug 19, 2026 | Bonnet Release Holder |
| B511225 | Service bulletin | Jun 12, 2026 | A “groaning” noise is heard from the tailgate when driving on rough roads. |
| 6520900300 | Warranty extension | May 21, 2026 | SHARK FIN ROOF ANTENNA SEALING SETTLEMENT Extended Warranty |
| B641224 | Service bulletin | May 4, 2026 | 1. Use of aftermarket accessory hang-on cellular phone holders and/or air fresheners can break the instrument panel air vent slats. Damage a… |
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 B640525 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 B640525 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 B640525 cover?
The manufacturer filed it against 2 model years: 2026 BMW X3, 2025 BMW X3. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone. The document itself sets the build window: built on or before Jan 2025 — the build date is on the certification label in the driver’s door jamb.