Here something we saw while replacing an N63 engine,,,,I was just removing the turbos and checked the propeller blades and noticed a chipped blade,,,the car had no faults or any turbo noises
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bmwtechnician 
Can you share a little info as I have an N63 engine too:
1) Why did it fail
2) What year was the vehicle
3) How many miles on the engine
4) Was the “customer care package” completed on the engine
5) Was this covered under any warranty
Thanks
Mike
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The engine did not fail,,the engine was consuming to much oil and BMW know some of the engines are bad,,,,,2014,,,,,43k miles,,,,,I believe the care package was done not sure,,,,,BMW warranty
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thank you so much for your reply! I follow your blog and truly appreciate all the information you share with the BMW community!
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Any Idea where the chip is located now? Thank you!
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I’m sure it got sucked into the engine
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No idea where the chip is,,,,it probably went into the engine
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Well no codes or symptoms now but at the high rpms they run at and unbalanced I say it might have just happened. Whats crazy is I have one with the exact same chip . Must be a casting design issue and probably a reason for early turbo failure. I will shoot a picture of it and put on my website so you can see it. Crazy weird coincidence ?
http://www.bmwmechanicboca.com
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Hello,
I am a big fan of your blog and articles. Have you encountered many problems on N63TU engine? I know the crankcase vent lines leak is a common problem, but what else? The warranty on my wife’s 2014 x5 50i are about to expire soon, should we get rid of the car before large bills coming in?
Thank you for your time and help.
Perry
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That’s a tuff call,,,the N63TU is a lot better then the N63,,,your engine still has problems with fuel injectors and high pressure fuel pump,,,,it still has issue with coolant by-pass hose,,,,if I were you and you can afford a new car I would get out of your X5 and move on.
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I don’t get it. I thought bmw used the same injectors and plugs across their many platforms. And it have been proved very reliable on other engines, like S63TU, N55,etc. After all these years, they have gone through may revisions, and there still have problems on N63TU? Do you think fuel cleaner may prevent injector goes bad?
Thank you
Perry
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Yea the S63tu ok,,,the N55 we still see problems and the N63tu we still see problems with the new updated injector,,,,I’m not a believer of fuel injector cleaner,,,that’s just me,,,,some people believe in it.
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Does it make a noise when a blade is chipped?
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Yes,,,the turbo whine might be loader depending on how bad the blade is,,,I have heard some that are really bad some sound like a shop vac.
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What Problems do you see on N55 with high mileage ?
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Not to many problems,,,typical oil leaks,,,valve cover gasket,oil filter housing and oil pan gasket,,,you might see high pressure fuel pump,,water pump,and injector,,,normal on high mileage engines
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Done oil filter housing gasket and valve cover gasket/ water pump for the oil pan do i have get the whole engine out ?? HPFP what are the symptons
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No you don’t have to remove the whole engine,,,,you have to support the engine and you lower the subframe and then you can snake out the oil pan from the bottom
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