Turbocharger for BMW N55B30A Engines

The Borg Warner turbocharger, part number 11657648913, is a direct-fit OE replacement for the N55B30A engine found in various BMW models including the 335i, 335i xDrive, 640i Gran Coupe, ActiveHybrid 3, 435i, and 435i xDrive. This unit combines the turbocharger and exhaust manifold, a design commonly employed to enable smaller displacement engines to achieve the power output of larger ones while also promoting better fuel efficiency relative to power produced. Turbochargers function by utilizing exhaust gases to force more air into the engine's combustion chambers. This increased air volume allows for more fuel to be injected, leading to enhanced power and efficiency. The Borg Warner turbocharger is lubricated by engine oil and cooled by engine coolant, featuring dedicated feed and return lines for both systems. Symptoms of a worn turbocharger can include oil leaks, exhaust smoke, low boost pressure, high oil consumption, and play in the turbine shaft due to bearing wear. Replacing a failing turbocharger is crucial to prevent further engine damage. This Borg Warner turbocharger is manufactured in Hungary and meets stringent, globally acknowledged quality standards. It is offered as a brand-new unit, not a remanufactured part, and does not have a core charge. Installation of this turbocharger is a complex procedure, and resources such as DIY installation videos for the N55 engine are available to guide the process. It is advised to replace a worn turbocharger to restore optimal engine performance and prevent potential catastrophic failure.