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      10-25-2019, 07:06 AM   #1
MP0W3RD
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N55 Engine Replacement

Hey Guys,

I have a 2011 E70 and the engine is toast at 128k miles. It failed while driving. It had one previous owner and had been well maintained so I am not sure what happened. The car shifted to Neutral and RPMs dropped to zero when it failed. I got it to a dealership and the engine was seized. Will not turn.

Anyways...I have an N55 with 75k miles that I am going to put into the car. My questions is: should I take any preventative measures with the donor engine before having it installed? Should I replace the road bearings and if so, what would you recommend?

I appreciate any advice and input.

Thank you!
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      11-07-2019, 03:49 PM   #2
ryansbmw
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Upgrade to Pure Stage 2 turbo
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      11-13-2019, 03:08 AM   #3
m5james
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Skip a used engine and go rebuilt from Ghassan. We lost the engine in our 535xiT at 120k from a failed injector, 75k $2000 engine and $800 parts/labor later and this one has spun a bearing. I wish I had listened to the voice in my head and spent $3500 on a rebuilt engine vs $2800 total on one that didn't even last 10k.
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      11-13-2019, 07:08 AM   #4
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I thought BMW had these new N55 engines at $5000, wrong?
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