BMW bulletin B610526
What it saysCustomers might report that washer fluid is leaking from the lower reservoir area, especially around thewasher fluid pumps. NHTSA’s full summary ↓
BMW filed this with NHTSA as a service bulletin dated Mar 20, 2026, received Mar 30, 2026, about the visibility/wiper. It names 4 model years (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 communicationCustomers might report that washer fluid is leaking from the lower reservoir area, especially around thewasher fluid pumps.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| B610526 | Service bulletin | Mar 20, 2026 | 11030307 | PDF, 710 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 themAlso filed against model years this site has no page for: 2025 BMW M5 Sportswagon.
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 3 model years this bulletin names have filed 7 complaints with NHTSA since 2015. 1 of them name Visibility/Wiper — 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.
Subject: Urgent Safety Complaint – Rear Visibility Obstruction in BMW 760i Due to “Theater Screen” and Rear Roller Shade Options To Whom It May Concern, I am writing to formally report a serious safety issue involving my recently purchased BMW 760i, equipped with two optional features — the “Theater Screen” and the rear window roller…
2025 BMW 7 Series · Visibility/Wiper · filed with NHTSA Oct 16, 2025 · ODI 11693924
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 visibility/wiper
Source: same model, same component group10 other manufacturer communications filed against these BMW models under the same component group (visibility/wiper), newest first. The eight newest are listed; the rest are on the BMW list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| B511924 | Service bulletin | Jan 22, 2026 | There is a matte “veil” or milky stain on theexterior mirror glass. Passenger side mirror shown; situation canoccur on either or both exteri… |
| B630224 | Service bulletin | Aug 21, 2024 | After programming the vehicle or completing aBMW RSU (Remote Software Upgrade), theblue accents (arrows) of both headlights arenot functioni… |
| B510923 | Service bulletin | Aug 19, 2024 | Sudden failure of the power window(s). |
| B540319 | Service bulletin | Aug 14, 2024 | GROANING NOISE FROM SUNROOF . A groaning noise is present from the area between the front and rear sunroof glass panels only with the sunroo… |
| B660424 | Service bulletin | Jul 16, 2024 | The washer fluid cleaning system has air remaining in its components, and/or the fluid lines after a previous repair has been performed. The… |
| B640422 | Service bulletin | Feb 16, 2024 | An interference noise (groaning noise) can be heard from within the heating and air-conditioning unit in thecenter of the instrument panel.… |
| B612823 | Service bulletin | Nov 9, 2023 | A thumping sound is heard when the window reaches the closing end stop. |
| B540521 | Service bulletin | Aug 1, 2023 | The sunroof will not operate in either direction. There are NO faults stored related to the sunroof. If the vehicle has any faults stored re… |
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 B610526 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 B610526 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 B610526 cover?
The manufacturer filed it against 4 model years: 2025 BMW 5 Series, 2025 BMW 7 Series, 2025 BMW M, 2025 BMW M5 Sportswagon. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.