BMW 335i xDrive engine failure due to rod bearings, car no longer starts on BMW 335i xDrive

Some BMW 335i xDrive owners report experiencing engine failure due to rod bearing issues, which can result in the vehicle failing to start. This problem is not unique to the 335i xDrive, as it is also observed in other BMW models like the M3 and M5, where rod bearing failure is a recognized concern. Owners often find that this failure is linked to inadequate lubrication, leading to damage and scoring on the bearings, which can escalate to severe engine damage. It is critical for owners to address any diagnosed rod bearing issues promptly to prevent further harm to the engine. In some instances, merely replacing the bearings may not suffice, as this could lead to a recurrence of the failure. Depending on the damage to the crankshaft, additional measures such as machining, polishing, and installing oversized bearings may be necessary for effective resolution. For those facing such engine failures, consulting a professional mechanic or BMW specialist is highly recommended to evaluate the situation and determine the appropriate steps for repair.