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Service bulletin B520122

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 id10214262
Published by NHTSA2022-06-21
Manufacturer's numberB520122
Manufacturer's date2022-02-01
NHTSA componentSEATS; SEAT BELTS

NHTSA's summary

A groaning noise can be heard when accelerating and cornering from the area of the shoulder safety belt support(s). The complaint can occur in both the driver's seat and the front passenger seat.

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

Seat belts, Seats

Vehicles listed
BMW X32020, 2021
BMW X42020, 2021

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

Recalls for the same vehicles and component
23V2110002023-03-29. SEATS
20201162020-03-19. Seats And Restraints
20V1640002020-03-19. SEAT BELTS:PRETENSIONER; SEAT BELTS:FRONT:WARNING LIGHT/DEVICES; SEAT BELTS:FRONT:BUCKLE ASSEMBLY; AIR BAGS

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
B5218232024-01-03. Service bulletin. A noise can be heard from underneath the seat while the seat is being moved either forwards or backwards. This can occur to the driver’s and/or the passenger’s front seat.
B5202212022-05-16. Service bulletin. Milky-white stains (discolorations) in the leather are observed in the second-row seat bottom, backrests and/or headrests. Refer to attachment for details. This only affects vehicles with the Merino leather.
B5202212022-01-24. Service bulletin. Milky-white stains (discolorations) in the leather are observed in the second-row seat bottom, backrests and/or headrests.
B1103212021-07-06. Service bulletin. B58 ENGINE: ENGINE OIL FILTER REMOVAL PROCEDURE AND TOOLS . A. For the B58 engines, a BMW Oil Catch special tool for use in conjunction with removing the engine oilfilter insert is now available.
B7204172020-04-27. Service bulletin. FALSE WARNINGS THAT THE FRONT PASSENGER SEAT IS OCCUPIED WITHOUT THE SEAT BELT BUCKLED: This Service Information Bulletin (Revision 10) replaces SI B72 04 17 dated September 2019. Acoustic and visual warnings indicate that the front passenger seat is occupied and the safety belt is not fastened when the seat is actually unoccupied. If the situation is currently present sit in the seat and move the seat to a slightly different position. The POL (Passenger Occupancy Light) light should now function correctly. In some cases the Air bag Warning Light was illuminated.