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Manufacturer communication · Other

BMW bulletin B063525

BMW filed this with NHTSA as a manufacturer communication dated Jun 17, 2025, received Jul 2, 2025, about the engine. It names 2 model years (2020). 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

Engine Return

Kind Other Manufacturer date Jun 17, 2025 Received by NHTSA Jul 2, 2025 Components Engine

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
B063525OtherJun 17, 202511020074PDF, 250 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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What owners reported

Source: NHTSA complaint database

Owners of the 2 model years this bulletin names have filed 78 complaints with NHTSA since 2015. 51 of them name Engine — 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.

2020 BMW M5 a metal-shavings engine failure at highway speed is a safety event. I had total catastrophic engine failure at less than 50,000 miles. No warning lights, found metal shavings in the engine system and engine needs complete replacement.

2020 BMW M · Engine · filed with NHTSA Aug 29, 2026 · ODI 11760549

In depth: 2020 BMW M engine problems →

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 engine

Source: same model, same component group

55 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
0011320800Service campaignOct 21, 2026The cylinder head cover was not installed correctly at the assembly plant.
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.
B064426OtherAug 22, 2026Air Flap Return
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 /…
B064126OtherAug 6, 2026Fan Return
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…

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 B063525 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 B063525 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 B063525 cover?

The manufacturer filed it against 2 model years: 2020 BMW M, 2020 BMW X6. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.