Service bulletins for the 2018 BMW 640xi
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.
3 on file from NHTSA, as of 2026-10-19.
By type
By component
| B510819 | 2024-02-01. Service bulletin. VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM. The basic conditions for initializing the power windows are not met. |
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| B611305 | 2024-02-01. Service bulletin. ELECTRICAL SYSTEM. The electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle “discharged battery” complaints. |
| B011423 | 2023-12-06. Service bulletin. ENGINE AND ENGINE COOLING. PRESSURE CONTROL VALVE (PCV) EXTENDED LTD WTY 15 YEARS/150,000 MILES |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.