540i

197 service bulletins filed with NHTSA for this model year

• Oct 29, 2025AIR BAGSB720125

  A 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 pas

• May 2, 2024ENGINEB010324

  EVAP SYSTEM PURGE (VENT) VALVE EXT LTD WTY (ELW) 15/150

• Mar 14, 2024EXTERIOR LIGHTINGB630418

  One or more of the LED daytime running lights are dim or discolored.

• Mar 4, 2024ENGINE AND ENGINE COOLINGB120721

  Check 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 damage

• Jan 16, 2024ELECTRICAL SYSTEMB510819

  The basic conditions for initializing the power windows are not met.

• Jan 11, 2024ELECTRICAL SYSTEMB611305

  The 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 “discharged battery” complaints.

• Jan 8, 2024STEERINGB360121

  At 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.

• Jan 5, 2024EQUIPMENT:ELECTRICAL:INFOTAINMENTB610524

  The Central Information Display goes black intermittently due to resets of the Head Unit (HU-H3). FaultB7F8F9 – “HU-H: Reset” will be stored in the HU-H3.

• and 189 more

Source: NHTSA manufacturer communications (technical service bulletins).