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Service bulletin B520120

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 id10171492
Published by NHTSA2020-02-18
Manufacturer's numberB520120
Manufacturer's date2020-01-01
NHTSA componentSEATS

NHTSA's summary

GROANING NOISE FROM TRIM APERTURE ON THE FRONT SEAT: When getting in or out of the vehicle a groaning noise can be heard from the opening (aperture) in the seat backrest. The noise may be heard from one or both of the front seats. The trim aperture in the front seat is insufficiently lubricated. The front and rear halves of the trim can contact each other causing friction noise.

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

Seats

Vehicles listed
BMW M22020
BMW R 1250 GS ADVENTURE2020 (the catalog's model; the bulletin names a series or trim of it)
BMW X22018, 2019, 2020
BMW Z42019, 2020

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
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.
B5207212021-05-24. Service bulletin. ROUTING OF DRIVER'S SEAT WIRING HARNESS: The seat wiring harness on the left front area of the driver's seat of the affected vehicles may have been routed incorrectly.
B5207202020-11-23. Service bulletin. SEAT HEATING NOT ACTIVATED WHEN ENGINE IS STARTED USING REMOTE STARTING SYSTEM: When preheating/precooling the vehicle via the remote starting system (Remote Engine Start), the seat heating on the driver's side is not activated.
B5207202020-11-16. Service bulletin. SEAT HEATING NOT ACTIVATED WHEN ENGINE IS STARTED USING REMOTE STARTING SYSTEM: When preheating/precooling the vehicle via the remote starting system (Remote Engine Start), the seat heating on the driver's side is not activated.
B5222192020-01-21. Service bulletin. NOISE DURING FORWARD / BACK SEAT ADJUSTMENT OVER THE ENTIRE LENGTH OF TRAVEL: A loud screeching noise can be heard from the front driver's or passenger's seat during forward/back seat adjustment.
B5222192019-10-21. Service bulletin. NOISE DURING FORWARD/BACK SEAT ADJUSTMENT OVER THE ENTIRE LENGTH OF TRAVEL: A loud screeching noise can be heard from the front driver's or passenger's seat during forward/back seat adjustment.
B5208182019-02-25. Service bulletin. FRONT PASSENGER SEAT SPORADIC MOVEMENT. Occasional stopping of seat adjustability movement in the driver and front passenger seats when occupied.
B5203182018-10-09. Service bulletin. MEMORY SEAT ADJUSTMENT IS LIMITED: After programming the vehicle with ISTA 4.10.2x, the adjustment range of the memory seat may restricted.