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Service bulletins for the 2018 BMW X3

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.

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

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

Bulletins, newest first
B6401212021-05-24. Service bulletin. ENGINE; EQUIPMENT. WHISTLING NOISE COMING FROM FRESH AIR INLET (ENGINE COMPARTMENT): A whistling noise is present from the fresh air inlet area (engine compartment bulkhead area), in the right front area of the vehicle, at speeds above 40 mph.
B5105212021-05-24. Service bulletin. EQUIPMENT. GLOVE BOX COVER: It is possible that an out-of-specification glove compartment cover on the passenger side was installed.
B3601212021-05-24. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; SERVICE BRAKES, AIR:DISC. 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.
B6501212021-03-15. Service bulletin. EQUIPMENT. SPORADIC FAILURE OR CRACKING NOISE IN BASS SPEAKERS: No Bass or a cracking noise can be heard from the bass speakers.
B5105212021-03-15. Service bulletin. EQUIPMENT. GLOVE BOX COVER: BMW AG has issued a Delivery Stop on a small number of Model Year 2021 BMW X3 SAV and X4 SAC vehicles that were produced on February 3, 2021.
B6307202021-02-22. Service bulletin. EQUIPMENT; INTERIOR LIGHTING; STRUCTURE:BODY:DOOR. FRONY DOOR PANEL LED FAILURES: The LED light on the front door is not working. Due to the orientation of the LED module, moisture may enter the LED module, causing corrosion.
B6520202021-02-08. Service bulletin. EQUIPMENT. ?PROGRAM HEAD UNIT: Satellite radio content is not available over IP, this does not affect channels received over satellite.
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.
B6208182021-02-01. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. ?INSTRUMENT CLUSTER DISPLAY SHAKES-SHIFTS TO THE LEFT: The Instrument cluster intermittently flickers, shakes and has shifted to the left. The fault is resolved once the vehicle goes into sleep mode. The fault can reoccur at any point.
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.
B6125202021-02-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. REMOTE CONTROL KEY OR BMW DISPLAY KEY BUTTONS NOT WORKING: The buttons on the remote-control key or BMW display key are not working, not allowing to unlock the vehicle and the tailgate or trunk compartment. Also, the buttons on a spare key do not work either.
B5403202021-02-01. Service bulletin. EQUIPMENT; VISIBILITY. SUNROOF NOT INITIALIZED: The sunroof will not operate and has the following fault codes stored: 030215 - SHD: invalid characteristic curve, no standardization exists and 030220 - SHD: System not standardized and 030295 - invalid characteristic curve, no standardization exists and 0302A0 - Service history: System not standardized. During operation, the sunroof may have lost initialization due to extended activation of the switch.
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.
B5121192020-11-23. Service bulletin. EQUIPMENT. ACTIVE AIR FLAP FAULT DIAGNOSIS AND REPAIR: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated, with faults stored related to the upper and/or lower active air flap(s). Potential causes include: Faulty upper air flap actuator or flap assembly (G01, G02, G12, G30, G32) Faulty lower air flap assembly (G01, G02, G12, G30, G32) Software error in the DME affecting the upper flap (G01, G02 only).
B5121192020-11-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT; STRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY. ACTIVE AIR FLAP FAULT DIAGNOSIS AND REPAIR: A check control message or MIL (Malfunction Indicator Lamp) may be illuminated, with faults stored related to the upper and/or lower active air flap(s). Potential causes include: Faulty upper air flap actuator or flap assembly (G01, G02, G12, G30, G32) Faulty lower air flap assembly (G01, G02, G12, G30, G32) Software error in the DME affecting the upper flap (G01, G02 only).
B3205202020-11-16. Service bulletin. EQUIPMENT; STEERING. INCREASED STEERING EFFORT WITH CHECK CONTROL MESSAGE (CCM): During multiple vehicle steering maneuvering or extended time at steering end stops (i.e. "full lock"), the check control message (CCM) "Increased steering effort, drive moderately" (CCM ID 997) may appear.
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.
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.
B5411192020-06-15. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY; EQUIPMENT. SUNROOF WATER LEAK DIAGNOSIS: This bulletin outlines multiple known areas of possible water entry for the vehicles listed above. It serves only as a diagnostic resource in troubleshooting water leak complaints from the roof area. This bulletin does not include all potential areas of water entry from the sunroof. Additional diagnosis may be required for vehicles which are not affected by the scenarios outlined below. The following situations are known to be potential causes for water entry into the vehicle from the sunroof area: Incorrect adjustment of sunroof glass panels Damage to the sunroof "perimeter seal" mounted to the roof Misplaced or damaged support foam for the center drip tray Damaged side seals of the rear sunroof glass panel Improperly installed clogged or kinked panoramic sunroof drain.
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.