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Service bulletins for the 2020 BMW 330i

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.

306 on file from NHTSA, as of 2026-10-19.

By type

By component

Only bulletins with component: Equipment and accessories are shown. Show all

Bulletins, newest first
B6618202021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. ?GESTURE CONTROL UNINTENDED OPERATION: The Gesture camera inadvertently detects movement and performs unintended operations.
B6520202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE. ?PROGRAM HEAD UNIT: Satellite radio content is not available over IP, this does not affect channels received over satellite.
B6406132021-02-01. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT; ELECTRICAL SYSTEM. ?A/C COOLING INTERMITTENT REDUCTION OF AIR FLOW: Customer may complain of reduced air flow when the air conditioning system is operated for an extended time, usually longer than 30 minutes. The evaporator starts to freeze up.
B6203202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. MALFUNCTION INDICATOR LAMP (MIL) IS ILLUMINATED WITH FAULT MEMORY CDC152: The malfunction indicator lamp (MIL) is illuminated in the instrument cluster. The vehicles has no operating failures; only the MIL is illuminated.
B6111202021-02-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; STRUCTURE:BODY:DOOR; EQUIPMENT ADAPTIVE/MOBILITY. 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.
B0901202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. BMW REMOTE SOFTWARE UPGRADE IS NOT OFFERED FOR INSTALLATION: The customer complaints that the BMW Remote Software Upgrade (RSU) is not possible in their vehicle, though the Remote Software Upgrade menu is available in the vehicle and a download was performed by the vehicle or the BMW Connected App.
B6629192020-12-21. 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.
B6509192020-12-21. 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.
B6124202020-12-21. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. HIGH-VOLTAGE BATTERY CONDITION VERIFICATION (20V-601): After additional in-depth research and analysis of the corresponding data for these vehicles, we can safely conclude that the issue identified in Recall Campaign 20V-601 has been satisfied and no further repair is required.
B6123152020-12-21. 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.
B6113192020-12-21. 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.
B5408192020-12-21. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. SUNROOF REVERSES WHEN CLOSING: The sunroof reverses direction (anti-traps) just as the sunroof glass meets the wind deflector. The sunroof may not properly initialize as a result.
B5402202020-12-21. Service bulletin. STRUCTURE:BODY:ROOF AND PILLARS; EQUIPMENT. SUNROOF ROLLER SUNBLIND INOPERATIVE: The sunroof roller sunblind may not operate correctly. The roller sunblind cannot be opened from a fully closed position. The roller sunblind cannot be closed via one touch automatic function.
B6608202020-11-16. 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.
B6607202020-11-16. 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.
B6101202020-11-16. 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.
B3101202020-11-16. 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.
B0902182020-09-14. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. NEW ECU VALIDATION NEEDED AFTER REPLACING CERTAIN CONTROL MODULES: With introduction of the new Headunit HU-H3 (MGU Media Graphics Unit), there is a new protection mechanism against tampering. If one or more of the following components needs to be replaced, the secure connection between them must be re-established: MGU TCB Telematic Communication Box (ATM-02) RSE Rear Seat Entertainment and/or KOMBISP18 instrument cluster Prior to re-establishing this connection, an electronic certificate must be created in the BMW backend for importing into the Vehicle. After the replacement of one of the mentioned Modules, the Control Module needs a valid certificate for it to communicate with the other Modules.
B6201192020-08-31. Service bulletin. EQUIPMENT:ELECTRICAL. INSTRUMENT CLUSTER AND ONBOARD COMPUTER INTERMITTENTLY INOPERATIVE: The audio source, radio station, or music track cannot be changed using the MFL. Normal functionality may possibly return after a sleep cycle or a battery reset. This affects vehicles with: Integration level S18A-18-11-5xx Live Cockpit Professional (option code 6U3) including the instrument cluster High 4.1. While the Kombi is not working properly the rest of the system is working properly. The customer can still use the Central Information Display (CID) for items such as entertainment settings, Driver Experience settings, etc, utilizing the I drive controller. The telephone functions are not affected. Unfavorable software at system start-up.
B6116202020-08-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. SERVICE ACTION - REWORKING THE HIGH-VOLTAGE SYSTEM CONNECTOR: The sealing plugs (aka sealing grommets) on the low-voltage connector to the high-voltage battery were incorrectly mounted. The white-colored plugs seal off the individual wire chambers in the connector.
B6104192020-08-31. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. VEHICLE DOES NOT START BATTERY TOTALLY DISCHARGED: The customer's vehicle does not start due to a totally discharged battery.
B0009202020-06-15. Service bulletin. EQUIPMENT. DELIVERY STOP - REPLACE OWNER'S MANUAL This Service Information Bulletin (Revision 1) replaces SI B00 09 20 dated May 2020. BMW AG has issued a Delivery Stop (effective May 5 2020) on a small number of Model Year 2021 BMW 3 Series Plug-in Hybrid Electric Vehicles (PHEV) that were produced between March 2 2020 and March 18 2020. Do not deliver to a customer a New Certified Pre-Owned or Used vehicle subject to a Delivery Stop until the vehicle is repaired. Do not use or sell replacement equipment/parts subject to a Delivery Stop. The improper owner's manual (aka handbook) was included with the vehicle. Inaccurate weight information is listed.
B6113202020-05-18. Service bulletin. EQUIPMENT; 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
B5114202020-05-18. Service bulletin. EQUIPMENT. RATTLE NOISE FROM DASHBOARD CENTER SPEAKER COVER: A rattle noise is present from the dashboard's center speaker cover. This may only occur during phone calls or with certain volumes/tones of music. Interference between the dashboard speaker cover and the dashboard.
B8402142020-04-27. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. CONNECTEDDRIVE/BMW ASSIST SYSTEM DIAGNOSIS INFORMATION: This Service Information Bulletin (Revision 7) replaces SI B84 02 14 dated May 2019. ConnectedDrive/BMW Assist features are partially or completely inoperative. This Service Information Bulletin: Is being published because vehicles are down for an extended period of time when researching system failures with ConnectedDrive or BMW Assist. Will assist you both in identifying the issue and providing technical support. CAUSE Not enough information is available for BMW NA engineers to assist the technician in diagnosing the root cause.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.