BMW 640i Service Bulletins
597 manufacturer communications on file.
- February 11, 2026•Document ID: 11028928Warranty Program/ExtensionAIR BAGS; ELECTRICAL SYSTEM; SEATS
- Mfr Comm. #:
- B720125
- Date Added:
- February 23, 2026
- Manufacturer:
- BMW
SummaryA situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the seat to a slightly different position. The POL (Passenger Occupancy Light) light should now function correctly. In some cases, the Air bag Warning Light was illuminated, and the following Advanced Crash Safety Module (ACSM) fault is stored: 930A1C - Front passenger seat occupancy detection transmitting fault (moisture)
Associated Products (14)Associated Documents - November 18, 2025•Document ID: 11025849OtherSTRUCTURE:BODY
- Mfr Comm. #:
- B065725
- Date Added:
- December 1, 2025
- Manufacturer:
- BMW
SummaryRight Engine Hood Hinge Return
Associated Products (2)Associated Documents - July 21, 2025•Document ID: 11020927Service Bulletin/Repair InstructionsVISIBILITY/WIPER
- Mfr Comm. #:
- B630418
- Date Added:
- July 28, 2025
- Manufacturer:
- BMW
SummaryOne or more of the LED daytime running lights are dim or discolored.
Associated Products (8)Associated Documents - June 10, 2025•Document ID: 11019575Warranty Program/ExtensionAIR BAGS
- Mfr Comm. #:
- B720125
- Date Added:
- June 17, 2025
- Manufacturer:
- BMW
SummaryThe Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-service / first delivery date.
Associated Products (7)Associated Documents - May 1, 2025•Document ID: 11018552Warranty Program/ExtensionAIR BAGS
- Mfr Comm. #:
- B720125
- Date Added:
- May 26, 2025
- Manufacturer:
- BMW
SummaryA situation may occur where the front passenger seat is not occupied; however, a “fasten seat belt” warning and a front passenger seat air bag deactivation message appears. If the situation is currently present, sit in the seat and move the seat to a slightly different position. The POL (Passenger Occupancy Light) light should now function correctly. In some cases, the Air bag Warning Light was illuminated, and the following Advanced Crash Safety Module (ACSM) fault is stored: 930A1C - Front passenger seat occupancy detection transmitting fault (moisture)
Associated Products (8)Associated Documents - April 18, 2025•Document ID: 11017101Warranty Program/ExtensionELECTRICAL SYSTEM; AIR BAGS
- Mfr Comm. #:
- B720125
- Date Added:
- April 18, 2025
- Manufacturer:
- BMW
SummaryThe Supplemental Restraint Systems (SRS) Front Passenger’s Seat Occupancy Capacitive Interior Sensor (CIS) Mat for defects in materials and/or workmanship that causes a false seat occupancy alert to occur has been extended to 10 years / 120,000 miles as determined from the vehicle's original in-service / first delivery date.
Associated Products (12)Associated Documents - September 12, 2024•Document ID: 11008101Warranty Program/ExtensionENGINE
- Mfr Comm. #:
- B010324
- Date Added:
- September 29, 2024
- Manufacturer:
- BMW
SummaryFor this vehicle, the EVAP systems purge (vent) valve limited warranty for defects in materials or workmanship has been extended to 15 years / 150,000 miles as determined from the original in-service date. This coverage is subject to the same vehicle eligibility requirements, limitations, and exclusion criteria that apply to the BMW New Vehicle Limited Warranty.
Associated Products (11)Associated Documents - May 2, 2024•Document ID: 11000579Warranty Program/ExtensionENGINE
- Mfr Comm. #:
- B010324
- Date Added:
- May 31, 2024
- Manufacturer:
- BMW
SummaryEVAP SYSTEM PURGE (VENT) VALVE EXT LTD WTY (ELW) 15/150
Associated Products (11)Associated Documents - March 14, 2024•Document ID: 10252031Service Bulletin/Repair InstructionsEXTERIOR LIGHTING
- Mfr Comm. #:
- B630418
- Date Added:
- April 1, 2024
- Manufacturer:
- BMW
SummaryOne or more of the LED daytime running lights are dim or discolored.
Associated Products (125)Associated Documents - March 4, 2024•Document ID: 10252038Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- B120721
- Date Added:
- April 1, 2024
- Manufacturer:
- BMW
SummaryCheck Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damaged or prematurely worn. Torn drive belt.
Associated Products (71)Associated Documents - January 16, 2024•Document ID: 10249437Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
- Mfr Comm. #:
- B510819
- Date Added:
- February 1, 2024
- Manufacturer:
- BMW
SummaryThe basic conditions for initializing the power windows are not met.
Associated Products (652)Associated Documents - January 11, 2024•Document ID: 10249027Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- B611305
- Date Added:
- February 1, 2024
- Manufacturer:
- BMW
SummaryThe electrical system of BMW vehicles has been subject to an ongoing development process over the last few years. This has led to increased demands being placed on the battery. This document covers important information for the dealer on how to handle âÂÂdischarged batteryâ complaints.
Associated Products (1018)Associated Documents - January 5, 2024•Document ID: 10249032Service Bulletin/Repair InstructionsEQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM
- Mfr Comm. #:
- B610524
- Date Added:
- February 1, 2024
- Manufacturer:
- BMW
SummaryThe Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 ÃÂâÃÂÃÂÃÂàÃÂâÃÂÃÂÃÂÃÂHU-H: ResetÃÂâÃÂÃÂÃÂàwill be stored in the HU-H3.
Associated Products (175)Associated Documents - January 5, 2024•Document ID: 10249015Service Bulletin/Repair InstructionsFUEL SYSTEM, GASOLINE
- Mfr Comm. #:
- B160123
- Date Added:
- February 1, 2024
- Manufacturer:
- BMW
SummaryA vehicle arrives at your center to be diagnosed for a micro-leak in the fuel evaporative (EVAP) system(NVLD natural vacuum leak detection). For this condition, the following fault is stored in the DME: 190302 - fuel tank ventilation and scavenging air system, micro-leak: leakage more than 0.5mm For: Model vehicles other that the ones listed above, or for EVAP faults related to a âÃÂÃÂlarge leak,âÃÂàafter confirming that the fuel filler cap is fitted properly, then, proceed to follow the corresponding test plan
Associated Products (106)Associated Documents - January 4, 2024•Document ID: 10249017Service Bulletin/Repair InstructionsSTEERING
- Mfr Comm. #:
- B320223
- Date Added:
- February 1, 2024
- Manufacturer:
- BMW
SummarySITUATION Unusual noises occur only when operating the steering column in the axial direction. 1. A one-time thump sound at the start of movement Shortly after the steering column starts moving, retracting, or extending, a one-time thump noise is heard. See attached video V32 03 23 2. Humming noise while steering column extends in the axial direction. The sound is only heard when the steering column is extended, not when the steering column is retracted. When the steering column starts to move in the extended direction, the humming noise can be heard. See attached video V32 04 23
Associated Products (115)Associated Documents - November 13, 2023•Document ID: 10245365Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- B011423
- Date Added:
- December 6, 2023
- Manufacturer:
- BMW
SummaryPRESSURE CONTROL VALVE (PCV) EXTENDED LTD WTY 15 YEARS/150,000 MILES
Associated Products (126)Associated Documents - November 9, 2023•Document ID: 10245367Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- B120721
- Date Added:
- December 6, 2023
- Manufacturer:
- BMW
SummaryCheck Control message (CCM) indicates: (ID 213): Stop, exercising due care. Voltage supply The Service Engine Soon light is on with the following DME Fault Code: 21B209 - Starter alternator / belt for 48V system (OSA_RIEMEN_RISS): Belt betweenCombustion engine and starter generator torn And/or one or more of the following other issues are also occurring: Noise in the area of the belt drive. Odor from the engine compartment. Smoke formation in the area of the belt drive. Drive belt damaged or prematurely worn. Torn drive belt.
Associated Products (74)Associated Documents - August 1, 2023•Document ID: 10242694Service Bulletin/Repair InstructionsSEATS
- Mfr Comm. #:
- B520121
- Date Added:
- September 25, 2023
- Manufacturer:
- BMW
Summary?The front seat will not calibrate/initialize, and the stored faults cannot be deleted.
Associated Products (114)Associated Documents - August 1, 2023•Document ID: 10242691Service Bulletin/Repair InstructionsSTEERING
- Mfr Comm. #:
- B320223
- Date Added:
- September 25, 2023
- Manufacturer:
- BMW
Summary?Unusual noises occur only when operating the steering column in the axial direction.
Associated Products (95)Associated Documents - June 1, 2023•Document ID: 10239605Service Bulletin/Repair InstructionsWHEELS
- Mfr Comm. #:
- B340914
- Date Added:
- July 24, 2023
- Manufacturer:
- BMW
SummaryThe Dynamic Stability Control (DSC) warning light comes on while driving. The following DSC fault codes for the wheel speed sensors are stored: 480712 and/or 480715 and/or 480718 and/or 48071B They cannot be cleared, even though the wheel speed sensors work correctly and no problem can be found with the wiring harness.
Associated Products (51)Associated Documents