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Service bulletin B720120

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 id10172509
Published by NHTSA2020-03-16
Manufacturer's numberB720120
Manufacturer's date2020-02-01
NHTSA componentSTRUCTURE

NHTSA's summary

JINGLING NOISE HEARD FROM PASSENGER B-PILLAR WHEN DRIVING ON ROUGH ROADS. A "jingling" noise can be heard coming from the area of the passenger B-pillar when driving on rough roads. On uneven road surfaces the passenger safety belt (aka "seat belt") inertia reel can be vibrated in its natural frequency range causing the jingling 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

Body and frame

Vehicles listed
BMW 840I2020
BMW M82020
BMW M8 GRAN COUPE2020
BMW M850I2019
BMW M850I2020
BMW M850XI2019

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
B5132182023-12-06. Service bulletin. The paint finish on the door jamb (above the door striker) is scratched due to the inner door cavity window seal.
B5405212023-09-25. Service bulletin. ?The sunroof will not operate in either direction.
B5146162023-06-26. Service bulletin. Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator.
B2402222023-01-30. Service bulletin. A cracking, metallic noise from under the center of the vehicle.
B6122192022-01-24. Service bulletin. The customer states that the vehicle locks itself when the last door was closed, even though the remote control/display key was inside the vehicle.
B6111202021-02-01. Service bulletin. WHEN LOCKING VEHICLE, DOORS ARE LOCKED BUT VEHICLE IS NOT SECURED: The customer complains that when locking the vehicle from the outside using the remote control: The doors lock The alarm system is not activated The side mirrors (when the function is activated) do not fold in.
B5132182020-12-21. Service bulletin. PAINT ON THE B-PILLAR IS SCRATCHED/DAMAGED: The paint finish of the door jamb (above the door striker) is scratched due to the inner door cavity window seal.
B5127202020-12-21. Service bulletin. FUEL FILLER DOOR WILL NOT OPEN: The fuel filler door (aka flap) will not open. In rare cases, if the vehicle is locked using the remote control key and the fuel filler door is pushed closed simultaneously, the fuel door can enter a locked state that cannot be unlocked.
B5112192020-10-19. Service bulletin. KIDNEY GRILL ACTIVE AIR FLAP FAULTS: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated.