Service bulletins for the 2021 BMW 330e
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.
217 on file from NHTSA, as of 2026-10-19.
By type
By component
| B660820 | 2020-11-23. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. SERVICE ACTION - REPLACE RIGHT REAR SHORT RANGE RADAR SENSOR (SRR): The functionality of the right rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message. |
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| B660720 | 2020-11-23. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION - REPLACE LEFT REAR SHORT RANGE RADAR SENSOR (SRR): The functionality of the left rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message. |
| 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. |
| B512620 | 2020-11-23. Service bulletin. STRUCTURE. SERVICE ACTION - CHECK REAR WINDOW: The rear window may not have been properly bonded. The rear window may not have been properly bonded to the body during production. |
| B512520 | 2020-11-23. Service bulletin. STRUCTURE. WHISTLE NOISE FROM FRONT DOORS WHILE DRIVING: There is a whistling noise present from either front door while driving at speeds of 60 mph. This can occur on one or both front doors. Foam acoustic seals at the A-Pillar and B-Pillar may have shrunk or shifted, causing an air leak. |
| B341020 | 2020-11-23. Service bulletin. SERVICE BRAKES. TICKING NOISE FROM DRIVERS FOOTWELL DURING LIGHT BRAKING WHILE COASTING: A ticking sound can be heard from the drivers footwell while coasting with the engine OFF. The noise occurs when the pedal is slightly pressed with minimum force without the brake light being 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. |
| B660820 | 2020-11-16. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. SERVICE ACTION - REPLACE RIGHT REAR SHORT RANGE RADAR SENSOR (SRR): The functionality of the right rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message. |
| B660720 | 2020-11-16. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. SERVICE ACTION - REPLACE LEFT REAR SHORT RANGE RADAR SENSOR (SRR): The functionality of the left rear SRR sensor could be reduced which would display the Driving Assistance Check Control Message. |
| 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. |
| B512620 | 2020-11-16. Service bulletin. VISIBILITY:GLASS, SIDE/REAR. SERVICE ACTION - CHECK REAR WINDOW: The rear window may not have been properly bonded. The rear window may not have been properly bonded to the body during production. |
| B512520 | 2020-11-16. Service bulletin. STRUCTURE:BODY:DOOR. WHISTLE NOISE FROM FRONT DOORS WHILE DRIVING: There is a whistling noise present from either front door while driving at speeds of 60 mph. This can occur on one or both front doors. Foam acoustic seals at the A-Pillar and B-Pillar may have shrunk or shifted, causing an air leak. |
| B341020 | 2020-11-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES; ENGINE. TICKING NOISE FROM DRIVERS FOOTWELL DURING LIGHT BRAKING WHILE COASTING: A ticking sound can be heard from the drivers footwell while coasting with the engine OFF. The noise occurs when the pedal is slightly pressed with minimum force without the brake light being 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. |
| B611320 | 2020-10-19. Service bulletin. ELECTRICAL SYSTEM. SERVICE ACTION - 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. In these circumstances: A crash shutdown of the DSS does not occur The power distribution box is supplied with power until the DSS is fully discharged. |
| 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. |
| B662419 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM. REMOTE CONTROL IS NOT DETECTED: Vehicle cannot be opened or closed using comfort access, engine start is not possible, and the vehicle may not start when placing the key against the steering column. Note: Opening, closing and starting via the BMW Digital Key or the Digital Key Card are not affected. Software error in the BDC (Body Domain Controller) module. |
| B661919 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM. COMFORT ACCESS AND COMFORT GO NOT POSSIBLE: Vehicle cannot be unlocked/locked or started via Comfort Access. Remote control functionality is restored by pressing any of the key buttons or by removing and reinstalling the remote control key battery. |
| B661519 | 2020-09-14. Service bulletin. LANE DEPARTURE. LANE DEPARTURE WARNING - STEERING INTERVENTION TOO STRONG: The steering intervention for Lane Departure Warning (LDW) is too strong (severe), which can create an uncomfortable feeling for the driver. Background: Steering intervention helps keep the vehicle in the lane if the system detects that a lane marking has been crossed. The steering intervention can be noticed on the steering wheel and can be manually overridden at any time. Software error in the KAFAS (camera-based driver assistance system) control unit. |
| B651520 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM. HEAD UNIT RESETS WHEN NAVIGATION IS USED IN CERTAIN LOCATIONS: The head unit resets sporadically causing the CID to turn black and then starts up again after a short time with the message "Start navigation system". This only occurs during navigation guidance when the "3D building" function is used Software in the Head Unit High (HU-H3). |
| B611720 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM. DELIVERY STOP - HIGH-VOLTAGE BATTERY: Please do not charge the vehicle high-voltage battery until further notice. There may be a potential issue in the welding process of the HV-modules. |
| B610120 | 2020-09-14. Service bulletin. ELECTRICAL SYSTEM. ACCESSORIES DO NOT POWER ON: Customer is not able to power accessories using the 12 volt power socket. Design change to reduce short circuits and blown fuses. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.