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Manufacturer communication · Other

BMW bulletin B062726

BMW filed this with NHTSA as a manufacturer communication dated Apr 21, 2026, received May 1, 2026, about the engine. It names 2 model years (2026). A manufacturer communication 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 communication

Expansion Tank Return

Kind Other Manufacturer date Apr 21, 2026 Received by NHTSA May 1, 2026 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
B062726OtherApr 21, 202611031898PDF, 257 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 them

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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More bulletins about the engine

Source: same model, same component group

48 other manufacturer communications filed against these BMW models under the same component group (engine), newest first. The eight newest are listed; the rest are on the BMW list.

NumberKindDatedNHTSA’s summary
0012870600Service campaignOct 10, 2026Due to an implementation error in various OBD diagnostics in the vehicle's control units, in very rare cases itmay happen that stored fault…
B121126Service bulletinSep 9, 2026Potential customer complaints with no fault codes stored / No MIL displayed. 1. “Rough idle after idling for a longer period of time” 2. “Ve…
B064526OtherSep 9, 2026Intake Muffler Return
0011460700EmissionsAug 26, 2026The return springs on the exhaust camshaft followers (switchable rocker arm) may break.
B110326Service bulletinAug 12, 2026This Service Bulletin provides instructions to clean the intake valves using the BMW Carbon Blaster Tool P/N 81 29 2 208 034 and the S68T /…
1613911200Warranty extensionAug 3, 2026the NVLD modules limited warranty for defects in materials and/or workmanship has been extended to 15 years / 150,000 miles as determined fr…
B110426Service bulletinJul 17, 2026The manual starting of electronic engine oil level measurement from inside the vehicle, usually afterperforming an engine oil service task…
0099020300EmissionsJul 10, 2026Due to an implementation error in various OBD diagnostics in the vehicle's control units, in very rare cases itmay happen that stored fault…

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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is BMW B062726 a recall?

No. A manufacturer communication 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 B062726 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 B062726 cover?

The manufacturer filed it against 2 model years: 2026 BMW 7 Series, 2026 BMW M. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.