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Service bulletins for the 2018 BMW 640i

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.

279 on file from NHTSA, as of 2026-10-19.

By type

By component

Bulletins, newest first
B6513162018-05-07. Service bulletin. EQUIPMENT. NBT-EVO Head Unit Cannot be Swapped between Vehicles for Testing. 'Component Protection Active': If either the NBT-EVO head unit or Body Domain Controller (BDC) are swapped into a different vehicle they will cause the head unit NBT-EVO to enter a locked mode once it recognizes a different VIN.
B6623172018-04-23. Service bulletin. FUEL SYSTEM, GASOLINE. CONTACTLESS TAILGATE (SMART OPENER) IS TOO SENSITIVE: When the remote is located in the range of the Smart Opener operation may be the contactless tailgate (Smart Opener) opens / close unintentionally from objects in the vicinity of the rear of the vehicle; for example by a gas filling hose.
B6217172018-04-23. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. ERRONEOUS HEAD-UP DISPLAY FAULT IN INSTRUMENT CLUSTER: B7F6E3 - HUD: Fault in the communication (HUD not answering) in instrument cluster fault.
B3405152018-04-23. Service bulletin. POWER TRAIN. TICKING NOISE FROM THE FRONT AXLE WHEN CORNERING: The customer may complain of a metallic ticking noise from the front axle when cornering, maneuvering, parking or pulling away from a parking space.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.