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Service bulletins for the 2018 BMW 640i

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.

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

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By component

Only bulletins with component: Driver assistance are shown. Show all

Bulletins, newest first
SIB6608232023-05-15. Service bulletin. ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR. Issues with the various functions of the camera-based driver assistance systems (KAFAS system) can possibly lead to following customer complaints: KAFAS camera system deactivates itself, due to system restrictions that are not clear to the customer KAFAS camera system cannot be activated due to system restrictions that are not clear to the customer Road signs are sporadically not detected.
B8414222023-05-01. Service bulletin. LANE DEPARTURE:LANE KEEP:NAVIGATION SYSTEM/SOFTWARE; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Customer is shown an incorrect GPS location in the vehicle (i.e., Nav Map, coordinates).
B6504142022-12-12. Service bulletin. LANE DEPARTURE; UNKNOWN OR OTHER; AIR BAGS; SEATS:BARRIERS; BACK OVER PREVENTION. According to the customer, the airbag warning light was on, but it may not be illuminated when the vehicle arrives in the workshop. 1. ACSM fault code "930A60 - Seat occupancy detection, front passenger; malfunction" is stored. The fault may or may not currently be present. Or 2. ACSM fault code "930A1C - Front passenger seat occupancy detection transmitting fault(moisture)" is stored. The fault may or may not currently be present.
B3204202021-12-27. Service bulletin. BACK OVER PREVENTION. A groaning type noise is heard during the height adjustment.
B6629192021-04-26. Service bulletin. BACK OVER PREVENTION. TOP VIEW CAMERA IMAGE IS MISALIGNED: The top view image of the vehicle is misaligned when observed in the Control Information Display (CID).
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.
B6617202020-12-21. Service bulletin. BACK OVER PREVENTION. SURROUND VIEW - PARKING VIEW IMAGES DISPLAYED INCORRECTLY: After programming and shifting into reverse, there may be various sporadic concerns regarding the rearview camera and the surround view (top view) camera images in the CID (Central Information Display).
B2702202020-06-15. Service bulletin. LANE DEPARTURE; WHEELS. JERKING OR SHUDDERING FROM THE DRIVELINE (XDRIVE TRANSFER CASE ATX13-X): There is a jerking or shuddering during either or both of the following: Cornering or accelerating from low speeds Driving with low to medium loads There are no warning lights or Check Control messages. CAUSE Unevenly worn or incorrect fitment tires are installed on the vehicle or the factory-filled transfer case oil does not meet BMW specifications.
B6608172020-04-27. Service bulletin. EQUIPMENT; BACK OVER PREVENTION. REAR VIEW CAMERA FAILS TO DISPLAY IMAGE: This Service Information Bulletin (Revision 6) replaces SI B66 08 17 dated January 2020. Sporadically when the rear view camera is activated no image appears in the display. The rear view camera can be activated by either: 1. Selecting reverse with the shift selector 2. Camera activation via the button on the center console Camera function returns after a terminal change.
B5108202020-04-20. Service bulletin. VEHICLE SPEED CONTROL; STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS; BACK OVER PREVENTION. GROANING OR CRACKING NOISE WHEN OPENING OR CLOSING THE DOORS: A groaning or cracking sound is present when opening and/or closing any of the doors. Interference between the door panel and door.
B3405172020-04-20. Service bulletin. BACK OVER PREVENTION; SERVICE BRAKES, HYDRAULIC; WHEELS; POWER TRAIN. TICKING NOISE WHILE CORNERING WITHOUT THE BRAKES APPLIED: This Service Information Bulletin (Revision 3) replaces SI B34 05 17 dated September 2017. Ticking noise coming from front wheel while cornering without brakes applied noticeable at low speeds. The vehicle must be moving. See attached video V34 01 20 Note: For a similar noise heard when parking with the brakes applied refer to SIB 31 01 12. Microscopic movement of the contact interface between the inner brake disc and the wheel bearing flange on vehicles equipped with lightweight brake discs.
B6608172020-02-18. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM:SOFTWARE. REAR VIEW CAMERA FAILS TO DISPLAY IMAGE: This Service Information Bulletin (Revision 5) replaces SI B66 08 17 dated March 2018. Sporadically when the rear view camera is activated no image appears in the display. The rear view camera can be activated by either: 1. Selecting reverse with the shift selector 2. Camera activation via the button on the center console Camera function returns after a terminal change. Note: This error situation can rarely if ever be duplicated on demand. Head-unit interface software start-up synchronization error for the rear view camera.
B3408192019-06-24. Service bulletin. ENGINE; ELECTRICAL SYSTEM:SOFTWARE; FORWARD COLLISION AVOIDANCE. VARIOUS CHECK CONTROL MESSAGES FOR DRIVER ASSISTANCE SYSTEMS. The following messages are displayed in the Check Control (CC) display: Continued driving possible. Driving stabilization. Driving stabilization restricted driving stabilization. Drive with caution to the nearest authorized BMW Service workshop and/or Collision warning/you can continue driving. Collision warning fully or partially failed. No warning is given if the distance from the vehicle in front is too short.
B2701182018-12-03. Service bulletin. STEERING; ELECTRONIC STABILITY CONTROL (ESC). "?DYNAMIC STABILTY CONTROL WARNING ON WITH LIMITED POWER STEERING ASSIST This Service Information bulletin replaces SI B34 09 16 dated January 2017 What's New: ? This SIB is a complete revision of B34 09 16. Steering feels heavy (limited power assist) The Dynamic Stability Control (DSC) light and Service Engine Soon light may be on. The following message may be displayed in the Check Control (CC): * CCM 350 ""It is possible to continue to drive. All-wheel drive system."" * Other CC messages may be stored related to: Restraint system / lane change warning / distance information / pedestrian protection. One or both of the following faults are stored in the DSC: * D36500 - Message fault (xDrive actuator information, ID: XDRV_ACT_INFO) - Timeout * D356E4 - Message fault (status of distribution of the longitudinal torque on the front axle rear axle, ID: ST_REPAT_XTRQ_FTAX_BAX) - Timeout The following faults can also be stored in the DDE or DME: * DDE: CD95E0 - Message (ST_REPAT_XTRQ_FTAX_BAX, 19.3.4,FX), Timeout: Message (status of distribution of longitudinal torque of front axle rear axle) from longitudinal torque distribution failed * DME: CDA056 - FlexRay, message (status of distribution of longitudinal torque of front axle rear axle / xDrive actuator information, 19.3.4): missing Internal fault in the transfer case control unit (Longitudinal Torque Module - LMV). "
B6608172018-11-26. Service bulletin. BACK OVER PREVENTION; VISIBILITY:REARVIEW MIRRORS/DEVICES. REAR VIEW CAMERA FAILS TO DISPLAY IMAGE. Sporadically, when the rear view camera is activated, either via selecting reverse with the shift selector or by direct camera selection, no image appears in the display. Camera function returns after terminal change. Note: This error situation can rarely, if ever, be duplicated on demand. Head-unit interface software error for the rear view camera.
B6610182018-05-21. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. REAR VIEW CAMERA CANNOT BE CONTROLLED VIA IDRIVE: When the Parking menu is active (reverse gear selected) in the CID (Central Information Display), activation or deactivation of the rear view camera via the iDrive controller does not work.
B6608172018-05-21. Service bulletin. BACK OVER PREVENTION: SENSING SYSTEM: CAMERA. REAR VIEW CAMERA FAILS TO DISPLAY IMAGE: Sporadically, when the rear view camera is activated, either via selecting reverse with the shift selector or by direct camera selection, no image appears in the display.

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