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Service bulletin B540417

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 id10168002
Published by NHTSA2019-11-18
Manufacturer's numberB540417
Manufacturer's date2019-10-01
NHTSA componentVISIBILITY

NHTSA's summary

CREAKING OR RATTLING NOISE FROM SUNROOF AREA This Service Information Bulletin (Revision 4) replaces SI B54 04 17 dated May 2018. What's New: Creaking and/or rattling noise from the sunroof area, especially when driving on uneven road surfaces. This can already take place as of low speeds. Incorrect torque applied to the mounting screws during production, allowing flexing/movement around the sunroof cassette/glass unit. And/or Improperly installed (loose) threaded bushings in the roof panel.

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

Glass, wipers and mirrors

Vehicles listed
BMW 740E2017
BMW 740I2017
BMW 740LI2016 to 2017
BMW 750LI2016 to 2017
BMW M760I2017

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
B5108192024-02-01. Service bulletin. The basic conditions for initializing the power windows are not met.
B6128232023-12-06. Service bulletin. A thumping sound is heard when the window reaches the closing end stop.
B5405212023-09-25. Service bulletin. ?The sunroof will not operate in either direction.
B6408212023-07-24. Service bulletin. The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings.
B5405212023-01-03. Service bulletin. The sunroof will not operate in either direction. There are NO faults stored related to the sunroof. If the vehicle has any faults stored related to the sunroof, this bulletin does not apply.
B6112222022-12-12. Service bulletin. After opening the vehicle with the radio remote control and changing the profile, the exterior mirror settings are lost.
SIB6408212022-08-22. Service bulletin. The air conditioning cycles from cold to warm air while driving or while at a stand still. The vent outlet temperatures vary by 25 degrees Fahrenheit or more (38 F to 60 F +) without changing any climate control settings. In some cases the air conditioning may have stopped blowing cold air altogether.
B5401212021-05-24. Service bulletin. SUNROOF REVERSES WHEN CLOSING: After the vehicle is left in the hot sun and/or high temperatures with the sunroof in the vented position, the sunroof may reverse (anti-trap activates) when closing.
B6123152020-12-21. 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.
B5404172020-05-18. Service bulletin. CREAKING OR RATTLING NOISE FROM SUNROOF AREA: Creaking and/or rattling noise from the sunroof area especially when driving on uneven road surfaces. This can already take place as of low speeds. Incorrect torque applied to the mounting screws during production allowing flexing/movement around the sunroof cassette/glass unit. And/or Improperly installed (loose) threaded bushings in the roof panel.