BMW 540i Service Bulletins
494 manufacturer communications on file.
- May 6, 2026•Document ID: 11032731Warranty Program/ExtensionENGINE
- Mfr Comm. #:
- B010324
- Date Added:
- May 18, 2026
- Manufacturer:
- BMW
SummaryThe 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.
Associated Products (50)Associated Documents - October 29, 2025•Document ID: 11024726Warranty Program/ExtensionAIR BAGS; ELECTRICAL SYSTEM
- Mfr Comm. #:
- B720125
- Date Added:
- November 3, 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 (11)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 - March 6, 2025•Document ID: 11015536Service CampaignSTEERING
- Mfr Comm. #:
- B320225
- Date Added:
- March 11, 2025
- Manufacturer:
- BMW
SummaryParts of the steering shaft universal joint may have been joined together without having beengreased. As a result, there can be audible squeaking and cracking noises. In some cases, moresteering force is required.
Associated Products (5)Associated Documents - October 23, 2024•Document ID: 11009427Service Bulletin/Repair InstructionsSTEERING
- Mfr Comm. #:
- B660923
- Date Added:
- October 28, 2024
- Manufacturer:
- BMW
SummaryThe customer states that one or more of the following situations may occur: 1. The availability of the Steering and Lane Control Assistant is deteriorating, and/or that the function allows thevehicle to move from side to side within the lane markings. 2. The parking space detection is less effective or hardly ever receives any parking space recommendations fromthe PMA.
Associated Products (4)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 8, 2024•Document ID: 10249018Service Bulletin/Repair InstructionsSTEERING
- Mfr Comm. #:
- B360121
- Date Added:
- February 1, 2024
- Manufacturer:
- BMW
SummaryAt low outside temperatures (below 40 degrees F) and slow driving speeds (i.e. when parking, maneuvering)with a large steering angle, the front end can be slightly axially misaligned. This can be felt (jerking)/ heard via an acoustic acknowledgement (clunk) as seen at the 11 second mark of the video. See attached video V36 01 21.
Associated Products (183)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 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 - December 20, 2023•Document ID: 10247567Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE
- Mfr Comm. #:
- B160623
- Date Added:
- January 3, 2024
- Manufacturer:
- BMW
SummaryEngine will crank but not start. There is no communication with the integrated fuel module (TFE) whendiagnosing with ISTA. The following two fault codes will be stored in the DME: 032B43 - Low fuel pressure system, electric fuel pump: pressure value too low CDA594 - Message (- 0x33E) missing, receiver DME, transmitter TFE
Associated Products (283)Associated Documents - November 22, 2023•Document ID: 10245422Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; EQUIPMENT
- Mfr Comm. #:
- B653423
- Date Added:
- December 6, 2023
- Manufacturer:
- BMW
SummaryCustomers may state that the alarm system (DWA) is not active after locking their unoccupied vehicle. Depending on the vehicleâÂÂs equipment and settings, no acoustic or optical confirmation (folding the mirrors/blinking confirmation) is noticeable. Additionally, the red anti-theft alarm LED in the interior mirror does not briefly flash every 2 seconds, indicating the alarm is armed.
Associated Products (314)Associated Documents - November 16, 2023•Document ID: 10245364Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- B010919
- Date Added:
- December 6, 2023
- Manufacturer:
- BMW
SummaryDIESEL FUEL INJECTORS: LTD WTY EXTENSION TO 10 YEARS/120,000 MILES
Associated Products (78)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 - October 17, 2023•Document ID: 10244243Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; EXTERIOR LIGHTING
- Mfr Comm. #:
- B631223
- Date Added:
- November 1, 2023
- Manufacturer:
- BMW
SummaryUpon performing a vehicle read out, faultcode (CD0D16- Control unit light (BEL)(LIN): Wrong variant installed) is stored inthe BCP (Basic Central Platform). Note: Functionality of the exterior lights and switch is fully operational when fault code is present.
Associated Products (10)Associated Documents - October 16, 2023•Document ID: 10244236Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- B170100
- Date Added:
- November 1, 2023
- Manufacturer:
- BMW
SummaryThe lower radiator coolant return hose may come in contact with the secondary air system check valve flange gasket when the engine coolant is at operating temperature due to coolant system pressure and expansion of the hose.
Associated Products (2)Associated Documents