Thread: N55 135i blown headgasket?/ motor ***update included***
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      06-03-2020, 08:22 AM   #15
tracer bullet
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Drives: '11 135i , '15 X3 35i
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Quote:
Originally Posted by iEatSand View Post
I'm not sure if the N55 turbo is also coolant driven or just oil driven.:
I was kind of wondering the same. Looked it up and it appears to be the case. Makes more sense. I'm used to seeing only oil lines I guess.
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