Service bulletins for the 2020 BMW 440i
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.
62 on file from NHTSA, as of 2026-10-19.
By type
By component
Only bulletins with component: Seats are shown. Show all
| B521723 | 2024-02-01. Service bulletin. ELECTRICAL SYSTEM; SEATS. Customer states one of the front seats is inoperative. The seat heater and power supply are inoperative. During the vehicle test, the seat module does not respond. The power supply fuse for the seat module isfound to have blown. |
|---|---|
| B520121 | 2023-09-25. Service bulletin. SEATS. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted. |
| B650414 | 2022-12-12. Service bulletin. LANE DEPARTURE; UNKNOWN OR OTHER; AIR BAGS; SEATS:BARRIERS; BACK OVER PREVENTION. According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not currently be present. Or 2. ACSM fault code "930A1C - Front passenger seat occupancy detection transmitting fault(moisture)" is stored. The fault may or may not currently be present. |
| B520121 | 2021-08-09. Service bulletin. SEATS; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Front seat will not calibrate/initialize, and the stored faults cannot be deleted |
| B513316 | 2021-08-09. Service bulletin. STRUCTURE:BODY; STRUCTURE:FRAME AND MEMBERS; SEATS. Water sloshing noises coming from the rear passenger compartment (left or right) while driving Water ingress in the luggage compartment, or in the rear passenger compartment- rear seat bench rear passenger compartment foot well rear passenger compartment side panel Failure of various control units installed in the area of the water removal channel |
| B110321 | 2021-07-06. Service bulletin. SEATS. 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. |
| B520121 | 2021-03-15. Service bulletin. SEATS. SEAT FAILS TO INITIALIZE DUE TO MISSING END STOP: Front seat will not calibrate/initialize. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.