Service bulletin B520320
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10176375 |
| Published by NHTSA | 2020-06-15 |
| Manufacturer's number | B520320 |
| Manufacturer's date | 2020-05-01 |
| NHTSA component | SEATS:FRONT ASSEMBLY:HEAD RESTRAINT; SEATS |
NHTSA's summary
RATTLING NOISE FROM THE FRONT HEADREST: A rattling noise can be heard coming from the front seat headrest. This noise is only heard from headrests on vehicles equipped with the optional Executive Lounge Seating SA (Option Code) 04F4. Excessive movement between the headrest's internal rod and sleeve.
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
| BMW 740E | 2017, 2018, 2019 |
|---|---|
| BMW 740I | 2017, 2018, 2019, 2020 |
| BMW 740LI | 2016 to 2017 |
| BMW 745E | 2020 |
| BMW 750I | 2018, 2019 |
| BMW 750LI | 2016 to 2019 |
| BMW ACTIVE HYBRID 7 | 2012 |
| BMW ACTIVEHYBRID 7 | 2011 |
| BMW B7 ALPINA | 2018 to 2020 |
| BMW M760I | 2017, 2018, 2019, 2020 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| B720125 | 2026-02-23. Warranty extension. A situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. 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, and the following Advanced Crash Safety Module (ACSM) fault is stored: 930A1C - Front passenger seat occupancy detection transmitting fault (moisture) |
|---|---|
| B520121 | 2023-09-25. Service bulletin. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted. |
| B650414 | 2022-12-12. Service bulletin. 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. |
| B520621 | 2021-08-09. Service bulletin. The driver's seat and/or passenger seat rattles ("cracking" noise) during load reversal. There is a slight movement in the seat that is most noticeable when moving forwards and backwards. |
| B520121 | 2021-08-09. Service bulletin. Front seat will not calibrate/initialize, and the stored faults cannot be deleted |
| B110321 | 2021-07-06. 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. |
| B520121 | 2021-03-15. Service bulletin. SEAT FAILS TO INITIALIZE DUE TO MISSING END STOP: Front seat will not calibrate/initialize. |
| B652120 | 2021-02-01. Service bulletin. ?NO PREVIEW IMAGES DISPLAYED IN THE REAR SEAT ENTERTAINMENT: The rear seat entertainment screens do not display any preview images at times. |
| B521119 | 2019-08-19. Service bulletin. CLICK CLACK NOISES IN BACKREST AREA OF FRONT SEAT: An alternating "click-clack" noise is heard from the backrest area of the front seat when an occupant sits in the seat or when the vehicle is cornering. Due to the elimination of the NED (Non-Electrical Diagnosis) test plan for seat noise from ISTA we are releasing this bulletin. Seat backrest frame is touching the seat cover. |