Service bulletin B360121
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 | 10194298 |
| Published by NHTSA | 2021-05-24 |
| Manufacturer's number | B360121 |
| Manufacturer's date | 2021-04-01 |
| NHTSA component | EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SERVICE BRAKES, AIR:DISC |
NHTSA's summary
Diagnosis of Compound Brake System Complaints in M Vehicles: 1. Visible cracks are caused by high thermal stresses during rapid heating and cooling of the brake discs. Braking from high speed with cold brake components (less than 212 degrees F) increases the likelihood of cracks to form.
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
Brakes, Equipment and accessories
| BMW 228I | 2014, 2015, 2016 |
|---|---|
| BMW 230I | 2017, 2018, 2019, 2020, 2021 |
| BMW 430I | 2021 |
| 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 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 840I | 2020, 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 M2 | 2016, 2017, 2018, 2019, 2020, 2021 |
| BMW M235I | 2014, 2015, 2016 |
| BMW M240I | 2017, 2018, 2019, 2020, 2021 |
| BMW M3 | 2015, 2016, 2017, 2018 |
| BMW M4 | 2015, 2016, 2017, 2018, 2019, 2020 |
| BMW M440I | 2021 |
| BMW M5 | 2018, 2019, 2020, 2021 |
| BMW M550I | 2017 |
| BMW M550I | 2018, 2019, 2020, 2021 |
| BMW M760I | 2017, 2018, 2019, 2020, 2021 |
| BMW M8 | 2020, 2021 |
| BMW M8 GRAN COUPE | 2020 |
| BMW M850I | 2019 |
| BMW M850I | 2020, 2021 |
| BMW M850XI | 2019 |
| BMW R 1200 GS ADVENTURE | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| BMW X3 | 2018, 2019, 2020, 2021 |
| BMW X4 | 2019, 2020, 2021 |
| BMW X5 | 2015, 2016, 2017 |
| BMW X5 | 2019, 2020, 2021 |
| BMW X5 M | 2018 |
| BMW X6 | 2020, 2021 |
| BMW X6 M | 2015 to 2020 |
| BMW X7 | 2019, 2020, 2021 |
| BMW Z4 | 2019, 2020, 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 2021479 | 2021-08-03. Brakes |
|---|---|
| 21V089000 | 2021-02-18. SERVICE BRAKES, HYDRAULIC:CRITICAL FASTENERS; SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC |
| 2021061 | 2021-02-10. Brakes |
| 21V062000 | 2021-02-10. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC; SERVICE BRAKES, HYDRAULIC |
| 20V514000 | 2020-08-27. EQUIPMENT:OTHER:LABELS; TIRES |
| 18V918000 | 2018-12-19. EQUIPMENT:OTHER:LABELS |
| 18V652000 | 2018-09-20. EQUIPMENT:ELECTRICAL |
| 2018366 | 2018-07-06. Brakes |
| 18V453000 | 2018-07-06. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER |
| 2018159 | 2018-04-04. Accessories |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| B064725 | 2025-10-10. Other. Protection Plate Return |
|---|---|
| B661719 | 2025-05-02. Service bulletin. The vehicle applies the brakes on its own when reversing onto an inclined roadway or driveway. This appliesonly to the situation where the Active PDC option is activated via the iDrive. |
| B340921 | 2025-01-23. Service bulletin. A turbine-like noise can be heard from the rear axle while deceleration during the first 300 miles of operation when braking from low speed. |
| B612723 | 2024-04-01. Service bulletin. The original Conditioned Based Service (CBS) Key data point closed with 23-07 soft ware, all CBS systems are now collectively under analysis. |
| B511520 | 2024-04-01. Service bulletin. Deactivated: Currently investigating other components that maybe playing a factors besides what is mentioned in the SIB. Topic is under investigation. |
| 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. |
| B541319 | 2024-02-01. Service bulletin. The roller sunshade (aka sun protection or sunblind) of the front panoramic sunroof is bunching up during operation or may hang down and appear loose. |
| 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. |