Service bulletins for the 2021 BMW M4
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
72 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: 12-volt battery are shown. Show all
| B611521 | 2021-12-20. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. It is possible that the EPP (expanded polypropylene) insert for the lithium-ion battery was not installed in approx. 0.3% of the G82 and G83 vehicles. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.