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Service bulletin B121619

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 id10161554
Published by NHTSA2019-06-24
Manufacturer's numberB121619
Manufacturer's date2019-05-01
NHTSA componentENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

ERRONEOUS ELECTRIC FAN FUNCTION FAULT STORED IN THE DME. The following faults may be erroneously stored in the Digital Motor Electronics (DME): And: There is no customer-facing vehicle symptom(s) or related check control message displayed. A software error may cause these faults to be erroneously stored in the Digital Motor Electronics (DME).

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

Electrical system, Engine, Software

Vehicles listed
BMW 530E2018
BMW 530I2017, 2018
BMW 540D2018
BMW 540I2017
BMW 640I2018
BMW 740E2017
BMW 740I2017
BMW 740LI2016 to 2017
BMW 750LI2016 to 2017
BMW C 400 X2018
BMW F800 R2017
BMW M550I2017
BMW M760I2017
BMW X32018, 2019
BMW X42019

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
B0902212023-07-24. Service bulletin. With the introduction of the BMW Remote Software Upgrade, all Service Pack 18 vehicles and partial Service Pack 15 vehicles may receive new functionality or modifications in their features.
B6203222022-12-12. Service bulletin. After programming, the customer may complain that the Sport Mode display is not fully displayed in the instrument cluster. Instead of a red background in sport mode, the background is displayed in blue (like ECO PRO mode).
SIB0901212022-07-18. Service bulletin. BMW offers a new special ISTA Installation made available for Roadside Assistance / Mobile Service technicians. The new ISTA Version is also able to be used in case of a Remote Software Upgrade (RSU) programming failure to get the customer car reprogrammed on site. In case of a Remote Software Upgrade failure, the engine start is prevented for safety reasons until the vehicle is programmed correctly. Most of the errors occur when only one control unit fails to program correctly.
B6202222022-05-31. Service bulletin. Sport mode is not displayed correctly in the instrument cluster. Instead of a red background in sport mode, the background is displayed in blue (like in Eco Pro mode). Software in the instrument cluster (Kombi).
B8404212022-01-24. Service bulletin. Wi-Fi Hotspot is missing and inoperable.
B6116212021-12-20. Service bulletin. The "energy management" Check control message (ID code 415) is falsely displayed when entering the vehicle.
SIB1204212021-12-13. Service bulletin. A software optimization affecting vehicle performance has been made available.
SIB 62 03 212021-10-25. Service bulletin. When the vehicle is operated in Sport Mode, the engine speed is no longer displayed in the BMW Head-Up Display (HUD).
B8402212021-08-09. Service bulletin. 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. The decision to phase out 3G network technology was made at the discretion of the respective cellular carriers and lies beyond the control of BMW. Due to the phase-out, BMW Assist and ConnectedDrive services will no longer be supported after this date.
B6511212021-08-09. Service bulletin. SiriusXM satellite radio is not working and does not display a channel list.