BMW Turbocharger - Mitsubishi 11657649290

Comes with exhaust manifold, for cylinders 4-6

Your N54 powered BMW makes the power it does because of the twin turbochargers that are tucked away in the right side of the engine bay. Turbochargers can last a long time, however they can also fail requiring replacement. Some common sings of turbocharger wear includes:

• Oil leaks
• Smoking exhaust
• Low boost
• Limp mode
• High oil consumption

This OEM replacement turbocharger will restore function and performance back to your BMW. This turbocharger fits the rear location and feeds boost for cylinders 4-6.

Turbo Maintenance

When looking to perform an upgrade or replace a failed turbo let's ask ourselves if we really treated our Turbo well and whether or not the new Turbo will be happy with us.

Turbochargers are cooled by oil and in some instances by coolant. Generally all turbo applications require some sort of cool down period after strained or used at higher than normal temperatures. It is always a good idea to practice a turbo cool down procedure regardless of how new or how old your turbo powered car is.

The cause of failure for most turbos aside from sucking something through other than air is simply overheating and oil failure. Oil breaks down much faster in a turbo powered application. Why? Oil is directly fed into the turbo to cool it. A turbo operates at temperatures that are a lot higher than in the crankcase. Now if we shut off the car after a hard run or a high speed run without circulating the hot oil out of the turbo and not allowing the turbo to cool down that oil will boil inside the feed lines and the turbo case.

Oil subjected to excess heat will leave heat spots and contaminants behind that are suspended in the formula. This is sludge. In order to avoid this and to take care of your entire lubrication system we recommend periodically performing an engine flush.

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