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Service bulletin B340318

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10138390
Published by NHTSA2018-05-21
Manufacturer's numberB340318
Manufacturer's date2018-04-01
NHTSA componentPARKING BRAKE

NHTSA's summary

ELECTROMECHANICAL HOLDING BRAKE (EMF) ERROR

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Parking brake

Vehicles listed
BMW 530E2018
BMW 530I2017, 2018
BMW 540I2017, 2018
BMW 640I2018
BMW 740LI2016 to 2018
BMW 750LI2016 to 2018
BMW M550I2018
BMW M760LI2017 to 2018
BMW X32018
BMW X42018
BMW X5 M2018

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
B5130162020-04-20. Service bulletin. TAILGATE UNINTENTIONALLY OPENS: This Service Information Bulletin (Revision 4) replaces SI B51 30 16 dated March 2018. Trunk/tailgate may open when vehicle is locked Trunk/tailgate may open while the vehicle is in motion usually after stopping such as a traffic light etc. Vehicle key trunk/tailgate button may be accidentally pressed thus opening the tailgate.
B3403192019-04-22. Service bulletin. HUMMING/RUMBLING NOISES AFTER OPENING THE DOOR. After waking up/unlocking and entering the vehicle may cause a humming/rumbling noise to occur.