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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Carbon Buildup in Turbos



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      06-04-2009, 07:00 AM   #1
mr.bob
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Carbon Buildup in Turbos

Just curious, has anyone encountered a buildup of carbon or gunk in the turbos?. I seem to remember other turbo cars that had a problem once the buildup got worse. Haven't heard anyone on this forum with this problem so I was wondering if it was a problem as the mileage went up??
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      06-04-2009, 08:29 AM   #2
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Quote:
Originally Posted by mr.bob View Post
Just curious, has anyone encountered a buildup of carbon or gunk in the turbos?. I seem to remember other turbo cars that had a problem once the buildup got worse. Haven't heard anyone on this forum with this problem so I was wondering if it was a problem as the mileage went up??
Haven't seen the problem on these turbos yet. Perhaps some of the cars run much richer than our N54s in general. I can show you pictures of the average amount of carbon build up.
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      06-04-2009, 10:34 AM   #3
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n54 is a DI engine, no fuel inside the turbo ... but carbon buildup caused fron oil maybe yes
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