Airbag Control Module (ACM) - 2011 528i

The BMW F10 5-Series SRS control module (ACM) resides beneath the center console, making it vulnerable to liquid damage from sunroof drain failures or spilled beverages—inspect the connector for green corrosion before installing junkyard units. For 2011 528i models with the N52B30 engine, interchange spans 2010-2013 model years using part numbers like 65779261899 or the superseded 65779317381, though you must verify the specific equipment code matches your vehicle's airbag count and seatbelt pretensioner configuration. Never install a used module without confirming it shares the same connector pin count (32-pin vs 48-pin variants exist); post-installation requires ISTA/P coding to marry the unit to the vehicle's VIN and clear hard deployment codes. Always disconnect the battery and wait 15 minutes before removal to avoid accidental deployment, and check the mounting tray for moisture—common failure points include internal communication faults and corrupted crash data that locks the module.