Service bulletin B520621
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 | 10200235 |
| Published by NHTSA | 2021-08-09 |
| Manufacturer's number | B520621 |
| Manufacturer's date | 2021-06-01 |
| NHTSA component | EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SEATS |
NHTSA's summary
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.
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
Equipment and accessories, Seats
| BMW 530E | 2018, 2019, 2020, 2021 |
|---|---|
| BMW 530I | 2017, 2018, 2019, 2020, 2021 |
| BMW 540D | 2018, 2019 |
| BMW 540D | 2020 |
| BMW 540I | 2017, 2018, 2019, 2020, 2021 |
| BMW 640I | 2018, 2019 |
| BMW 640I | 2020 |
| BMW 740E | 2017, 2018, 2019 |
| BMW 740I | 2017, 2018, 2019, 2020, 2021 |
| BMW 740LI | 2016 to 2017 |
| BMW 745E | 2020 |
| BMW 750I | 2018, 2019 |
| BMW 750LI | 2016 to 2019 |
| BMW 750LI | 2021 |
| BMW B7 ALPINA | 2018 to 2021 |
| BMW C 400 X | 2018 |
| BMW F 850 GS ADVENTURE | 2021 (the catalog's model; the bulletin names a series or trim of it) |
| BMW F800 R | 2017 |
| BMW M550I | 2017 |
| BMW M550I | 2018, 2019, 2020, 2021 |
| BMW M760I | 2017, 2018, 2019, 2020, 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 18V652000 | 2018-09-20. EQUIPMENT:ELECTRICAL |
|---|---|
| 17V481000 | 2017-07-28. EQUIPMENT |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| 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) |
|---|---|
| B660720 | 2024-03-02. Service bulletin. The functionality of the left rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message. |
| B660820 | 2024-03-02. Service bulletin. The functionality of the right rear SRR sensor could be reduced which would display the "Driving Assistance"- Check Control Message. |
| B610524 | 2024-02-01. Service bulletin. The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 â“ âHU-H: Resetâ will be stored in the HU-H3. |
| B653423 | 2023-12-06. Service bulletin. Customers may state that the alarm system (DWA) is not active after locking their unoccupied vehicle. Depending on the vehicle’s equipment and settings, no acoustic or optical confirmation (folding the mirrors/blinking confirmation) is noticeable. Additionally, the red anti-theft alarm LED in the interior mirror does not briefly flash every 2 seconds, indicating the alarm is armed. |
| B520121 | 2023-09-25. Service bulletin. ?The front seat will not calibrate/initialize, and the stored faults cannot be deleted. |
| B611320 | 2023-07-24. Service bulletin. In the event of an accident, the two-battery Dual Storage System (DSS) is disconnected from the electrical system via an internal relay. |
| B120323 | 2023-07-24. Service bulletin. BMW AG has issued a Delivery Stop effective June 6, 2023 on certain Model Year 2023 - 2024 BMW vehicles that were produced between October 26, 2022 and May 8, 2023. |
| B841422 | 2023-05-01. Service bulletin. Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates). |
| B840822 | 2023-05-01. Service bulletin. The 3G network in the US has been shut down. This means that only the 4G network will be available. In the 4G network, voice calls will be transferred via the Voice over LTE (VoLTE) function. For this purpose, the SIM card must perform an IMS registration in the mobile communication network. Due to a production error, the telematics control units were delivered without an IMS configuration. The Connected Drive voice services (Concierge Call, BMW Assistance, and emergency call voice) can no longer be used regionally in the US in vehicle with telematics control units ATM-1 and TCB-4G. Voice control of the vehicle and all other telephone (paired mobile devices) functions are not affected. Emergency call location data is unaffected. |