Service bulletin B540618

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)
Type	Service bulletin
NHTSA id	10149534
Published by NHTSA	2018-11-26
Manufacturer's number	B540618
Manufacturer's date	2018-10-01
NHTSA component	STRUCTURE:BODY:ROOF AND PILLARS; EQUIPMENT

NHTSA's summary

SERVICE ACTION: CHECKING AND, IF NECESSARY, REPLACING CONVERTIBLE TOP LOCKING BASE PLATE. The knurled bolts on the convertible top locking base plates may not have been installed correctly on the cowl panel. The knurled bolts may not have been pressed completely into the base plate.

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

Body and frame, Equipment and accessories

Vehicles listed
BMW I8	2019

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

Recalls for the same vehicles and component
18V652000	2018-09-20. EQUIPMENT:ELECTRICAL

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
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B840121	2021-08-23. Service bulletin. TELEMATICS UNIT DEACTIVATION DUE TO 3G CELLULAR TECHNOLOGY DISCONTINUATION: The discontinuation of 3G cellular communication for Combox, TCB 3G and ATM 3G (Telematics ControlModule) can no longer be supported by the cellular network provider starting February 2022.
B612315	2020-12-21. Service bulletin. Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full: Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full.There are no faults stored in the system for the washer fluid level switch.
B840214	2020-04-27. Service bulletin. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. ConnectedDrive/BMW Assist features are partially or completely inoperative. This Service Information Bulletin: Is being published because vehicles are down for an extended period of time when researching system failures with ConnectedDrive or BMW Assist. Will assist you both in identifying the issue and providing technical support. CAUSE Not enough information is available for BMW NA engineers to assist the technician in diagnosing the root cause.
B652214	2020-04-20. Service bulletin. AUTOMATED ACTIVATION OF NAVIGATION SYSTEM DURING PDI/QC1: This Service Information Bulletin (Revision 2) replaces SI B65 22 14 dated October 2015. The INITIAL NAV enabling code no longer needs to be pre-ordered through the Parts department! When the vehicle is connected to the diagnostic system ISTA to perform PDI/QC1 the step to activate the navigation system (part of Delete Transport Mode) will automatically request the INITIAL NAV enabling code (VIN-specific) without pre-ordering the enabling code. This enabling code will be automatically delivered through ISTA and it then activates the navigation system.
B650720	2020-04-20. Service bulletin. VEHICLE SOUND GENERATOR IS DIFFERENT AND LOUDER AFTER PROGRAMMING: Vehicles sound is different and louder after programming to an Integration level (I-level) between I001-1911-500 and I001-19-11-556. Software in the Vehicle Sound Generator (VSG).
B612315	2019-12-16. Service bulletin. Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full : The low washer fluid warning is illuminated even though the washer fluid reservoir is full. There are no faults stored in the system for the washer fluid level switch. A non-approved washer fluid was used that is silicone-based. Silicone-based fluids are not compatible with the contactless capacitive level sensor. Fluids that contain a silicone additive are normally colored other than blue.
B360519	2019-12-16. Service bulletin. SERVICE ACTION: INSPECT THE RIGHT REAR WHEEL RIM AND REPLACE IF NECESSARY. Vehicles delivered with wheel rim style 470 (shown) have directional wheels specifically for the left and right side of the vehicle. An incorrect heat treatment has been applied to batches of the right rear rim and may have a crack in the spoke of the wheel rim. Visual or audible perceptions may be noted by the customer. Error in the manufacturing process of the right rear wheel rim.
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