Service bulletins for the 2021 BMW Z4
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.
115 on file from NHTSA, as of 2026-10-19.
By type
By component
| B662919 | 2020-12-21. Service bulletin. BACK OVER PREVENTION: CAMERA SYSTEM; EQUIPMENT. TOP VIEW CAMERA: The top view image of the vehicle is misaligned when observed in the Control Information Display (CID). When the vehicle is parked in a parking spot with line markings, it is clearly noticed in the CID that the lines are not parallel to the side of the vehicle. This may be noticed on either the driver side, passenger side or both. |
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| B650919 | 2020-12-21. Service bulletin. EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT. HEAD UNIT RESETS WITH FAULT CODE B7F8F9 RESET WATCHDOG: Customer states the following about their vehicle: Active radio or music source is interrupted. The navigation is no longer available. A black screen is shown in the Control Display. |
| B612315 | 2020-12-21. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER; EQUIPMENT. Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full: Low Washer Fluid Warning Light is illuminated when the Washer Fluid Tank is Full.There are no faults stored in the system for the washer fluid level switch. |
| B611319 | 2020-12-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. CHECKING THE DUAL STORAGE SYSTEM AND REPLACE IF NECESSARY: In the event of an accident, the two-battery Dual Storage System (DSS) is disconnected from the electrical system via an internal relay. In some cases, the relay is stuck closed and a fault is set. |
| B611120 | 2020-12-21. Service bulletin. LATCHES/LOCKS/LINKAGES; ELECTRICAL SYSTEM. WHEN LOCKING VEHICLE, DOORS ARE LOCKED BUT VEHICLE IS NOT SECURED: The customer complains that when locking the vehicle from the outside using the remote control: The doors lock. The alarm system is not activated. The side mirrors (when the function is activated) do not fold in. |
| B610120 | 2020-11-23. Service bulletin. ELECTRICAL SYSTEM. ACCESSORIES DO NOT POWER ON: 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. A design change was intended to reduce short circuits and blown fuses. When the plug adapter is inserted, the center contact pin may not make proper contact with the center pin of the power socket plug. |
| B520720 | 2020-11-23. Service bulletin. SEATS. SEAT HEATING NOT ACTIVATED WHEN ENGINE IS STARTED USING REMOTE STARTING SYSTEM: When preheating/precooling the vehicle via the remote starting system (Remote Engine Start), the seat heating on the driver's side is not activated. |
| B310120 | 2020-11-23. Service bulletin. SUSPENSION. SERVICE ACTION - REPLACE THE WISHBONE OR TENSION STRUT: An incorrectly pressed-in rubber mount in the wishbone, or hydraulic mount in the tension strut can lead to acoustic abnormalities in the front axle. A process fault at the supplier resulted in the mounts of the affected wishbone or tension strut to be incorrectly pressed in. |
| B160320 | 2020-11-23. Service bulletin. FUEL SYSTEM, GASOLINE. DELIVERY STOP - REPLACE FUEL TANK: Over time, a fuel tank weld seam may start to separate at locations in which welding may have beeninsufficient. |
| B610120 | 2020-11-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. ACCESSORIES DO NOT POWER ON: 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. A design change was intended to reduce short circuits and blown fuses. When the plug adapter is inserted, the center contact pin may not make proper contact with the center pin of the power socket plug. |
| B520720 | 2020-11-16. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. SEAT HEATING NOT ACTIVATED WHEN ENGINE IS STARTED USING REMOTE STARTING SYSTEM: When preheating/precooling the vehicle via the remote starting system (Remote Engine Start), the seat heating on the driver's side is not activated. |
| B310120 | 2020-11-16. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION. SERVICE ACTION - REPLACE THE WISHBONE OR TENSION STRUT: An incorrectly pressed-in rubber mount in the wishbone, or hydraulic mount in the tension strut can lead to acoustic abnormalities in the front axle. A process fault at the supplier resulted in the mounts of the affected wishbone or tension strut to be incorrectly pressed in. |
| B160320 | 2020-11-16. Service bulletin. EQUIPMENT; FUEL SYSTEM, GASOLINE. DELIVERY STOP - REPLACE FUEL TANK: Over time, a fuel tank weld seam may start to separate at locations in which welding may have beeninsufficient. |
| B511219 | 2020-10-19. Service bulletin. STRUCTURE. KIDNEY GRILL ACTIVE AIR FLAP FAULTS: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated. |
| B310120 | 2020-10-19. Service bulletin. SUSPENSION. SERVICE ACTION - REPLACE THE WISHBONE OR TENSION STRUT: An incorrectly pressed-in rubber mount in the wishbone, or hydraulic mount in the tension strut can lead to acoustic abnormalities in the front axle. A process fault at the supplier resulted in the mounts of the affected wishbone or tension strut to be incorrectly pressed in. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.