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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 > Is this a small leak in the oil return line?



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      08-03-2016, 02:52 PM   #1
hifidawg09
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Is this a small leak in the oil return line?

Was doing an oil change and my mechanic noticed a small leak.

Does this look like its coming from the Oil return line (gasket), Supply line or the turbo housing. This is the best pic I could get.
I hope that its not the turbo. Still get great boost. No smoke that I can see in the exhaust. The oil consumption increased just a bit. Some oil in the catch pan.

Anyone know if the gasket can be reached without doing the DP and engine mount etc? What does this job price out?

Thanks
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      08-03-2016, 03:25 PM   #2
bartbes
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Had this, oil return line. Got a new line, €65.
Lot of parts had to come out for other repairs so would'nt know what is necessary for oil lines only, but im guessing downpipes.
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      08-03-2016, 03:26 PM   #3
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What did it set you back?

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Originally Posted by bartbes View Post
Had this, oil return line. Got a new line, €65.
Lot of parts had to come out for other repairs so would'nt know what is necessary for oil lines only, but im guessing downpipes.
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      08-03-2016, 03:28 PM   #4
MadeInPhilly
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how many miles? Mine has a leak there too but I'm replacing my turbos in 2 weeks. I have 103k miles. My oil consumption has gone up as well. Could be my oil pan gasket which is also leaking. If oil lines are clogged your turbo bearings will go soon and will hear howling noise.
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      08-03-2016, 03:33 PM   #5
hifidawg09
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66K, I am also worried about bearing failure. But at this point
I can still get the Warranty turbo if that ever happens. Seems like it does not make sense to fix the leak just to have the turbo fail later.

So this is most likely due to a clog? I was running M1 0w40 now switched to
Castrol 0w40 maybe it will do its magic

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Originally Posted by MadeInPhilly View Post
how many miles? Mine has a leak there too but I'm replacing my turbos in 2 weeks. I have 103k miles. My oil consumption has gone up as well. Could be my oil pan gasket which is also leaking. If oil lines are clogged your turbo bearings will go soon and will hear howling noise.
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      08-03-2016, 03:35 PM   #6
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What is the turbo swap setting you back?

Quote:
Originally Posted by MadeInPhilly View Post
how many miles? Mine has a leak there too but I'm replacing my turbos in 2 weeks. I have 103k miles. My oil consumption has gone up as well. Could be my oil pan gasket which is also leaking. If oil lines are clogged your turbo bearings will go soon and will hear howling noise.
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      08-04-2016, 10:00 AM   #7
MadeInPhilly
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I picked up a used set off this forum from a car that recently had it replaced by the dealer. The turbo install kit itself is like $300. I'm also doing my oil pan gasket, motor mounts, inlets, and downpipes. With labor I'm over $2500 easy.
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