BMW M57N2 Turbocharger With Installation Kit - 11657811405KT

Product Information

Turbochargers are commonly used on many modern cars as they allow smaller displacement engines to make the same power as higher displacement engines. In addition, turbocharged engines tend to be more fuel efficient relative to the power that they output. Turbochargers are relatively simple mechanical devices. They use exhaust gas to pressurize the intake air. With more air volume entering the engine it is possible to add more fuel which in turn allows for more power as well as efficiency.

Turbochargers are generally cooled by engine coolant and lubricated by engine oil. So it's not uncommon to see two feed lines going to the turbocharger and two return lines coming from the turbo. Over time turbochargers like all parts wear out. Smoke coming out of the exhaust can indicate that seals in the turbo have gone bad and oil is entering the exhaust. Really worn turbos also don't build boost effectively. If you suspect your turbocharger is worn or on its way top catastrophic failure it is advised to replace it before further engine damage can occur.

• Oil leaks
• Smoking exhaust
• Low boost pressure
• Limp model
• High oil consumption
• Play in turbine shaft due to worn bearing

About Genuine BMW

The original parts used by BMW to build your car are available as replacement parts under the “Genuine BMW” brand. When ordering a Genuine BMW part you are guaranteed to get the same part that you would pick up from your local dealerships part department. Genuine BMW parts have been built to BMW’s stringent standards and are the same quality of the original parts used to build your Ultimate Driving Machine.

You may not realize this, but the parts that make up your BMW are not necessarily manufactured by BMW. No cause for concern, as BMW designs the part, hires a manufacturer, and ensures its quality to you. In fact, many of these manufacturers have been making parts for BMW for decades. In our industry these manufacturers are called OEM (Original Equipment Manufacturers), and these are often brands you recognize, including Lemforder, ZF, Sachs, Bosch, Valeo, Zimmermann, Siemens VDO, Corteco, and more. Don’t be surprised to open that Genuine BMW parts box and find an OEM branded part inside, simply with the addition of a BMW logo.

Be sure to keep an eye out for OE tags on our product pages to quickly identify parts coming direct from OE manufacturers. That extra bit of insight could save you some serious money while shopping! Refer to our OE Academy for further information regarding the OE/OEM tags throughout the site.