Service bulletin B511121
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 | 10199297 |
| Published by NHTSA | 2021-07-19 |
| Manufacturer's number | B511121 |
| Manufacturer's date | 2021-05-01 |
| NHTSA component | EQUIPMENT; STRUCTURE:BODY:ROOF AND PILLARS; EQUIPMENT ADAPTIVE/MOBILITY |
NHTSA's summary
ROOF TRIM STRIP LOOSE AT REAR: The roof trim strip may be loose at the last (rearmost) clip as shown. This can occur on either side of the roof, or on both sides.
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, Equipment and accessories
| BMW M4 | 2021 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| B410725 | 2026-01-23. Service bulletin. While driving on a smooth and/or unevenroad, a “cracking” sound is heard from therear wheel arch area (highlighted in orange) on either the right or left side. |
|---|---|
| B410725 | 2025-08-24. Service bulletin. While driving on a smooth and/or uneven road, a “cracking” sound is heard from the rear wheel arch area (highlighted in orange) on either the right or left side. |
| 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. |
| 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. |
| B514616 | 2023-06-26. Service bulletin. Upon opening and closing the tailgate, a creaking/groaning sound can be heard from tailgate actuator. |
| B841422 | 2023-05-01. Service bulletin. Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates). |
| B651623 | 2023-05-01. Service bulletin. Customer states there is no audio playback (telephony, navigation, radio) and system sounds (PDC, turn indicators, acoustic signals) may also have failed. |
| B610120 | 2023-03-20. Service bulletin. Customer is unable to power up or charge accessories through a plug adapter inserted in the front 12-volt power socket plug. Alternatively, it will only operate when constant downward hand pressure is maintained. |
| B841422 | 2023-01-30. Service bulletin. Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates). |
| B613322 | 2023-01-30. Service bulletin. Due to a software error, Remote Software Upgrade (RSU) and Remote Support are currently not possible. Additionally, the Integrated Owner's Handbook cannot be displayed. |