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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 > What's leaking now



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      09-24-2020, 08:59 PM   #1
andrewsmith335i
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I have noticed a small oil leak from the back of my engine. I'll attach pics. For what it's worth, I just had turbos, oil pan gasket, valve cover gasket, ofhg done recently. It looks like one of the drain lines for the turbos but I'm not a mechanic and I'm probably wrong. I noticed what seems to be some oil around cylinder 6, possibly pcv? Anything helps, thanks.
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      09-24-2020, 09:20 PM   #2
relative4
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Eeh, could be rear main. I'd have whoever did the turbos peep it.
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      09-24-2020, 10:11 PM   #3
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Quote:
Originally Posted by relative4 View Post
Eeh, could be rear main. I'd have whoever did the turbos peep it.
Yeah, the thing is when I had most of that work done I had the whole car inspected and they said it was 100%. I don't think the rear main would get to the point that it's leaking on the floor in the span of 4 or so days. That's why I think it might be a drain line.
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      09-24-2020, 10:18 PM   #4
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For what it's worth after I had all the crazy leaks fixed. Engine kept puking oil had me going crazy wondering what was still leaking. 2 weeks after no more oil dripping. Could be excess oil build up from before doing the jobs.
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      09-24-2020, 10:31 PM   #5
andrewsmith335i
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Quote:
Originally Posted by Mustafa.F30 View Post
For what it's worth after I had all the crazy leaks fixed. Engine kept puking oil had me going crazy wondering what was still leaking. 2 weeks after no more oil dripping. Could be excess oil build up from before doing the jobs.
I'll give it some time, I sure as hell hope that's the case
Would make some sense considering my oil pan gasket was practically non existent, this is in that area
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      09-24-2020, 10:33 PM   #6
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For me it was the ofhg. Everyday the alternator would empty out its reservoir of junked oil
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      09-24-2020, 10:34 PM   #7
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Quote:
Originally Posted by Mustafa.F30 View Post
For me it was the ofhg. Everyday the alternator would empty out its reservoir of junked oil
Same area? Right behind oil pan?
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      09-24-2020, 10:37 PM   #8
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Mostly around the front of the engine. But ofhg oil leaks down the front and down the oil pan to that area. I mean if they didn't clean out the front of your block it could be residual oil leaking down. Is their oil on ur valve cover hard to see in pic
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      09-24-2020, 10:38 PM   #9
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Also if your ofhg was leaking bad inspect ur serp belt
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      09-24-2020, 10:47 PM   #10
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Quote:
Originally Posted by Mustafa.F30 View Post
Also if your ofhg was leaking bad inspect ur serp belt
It was, I just pulled a belt out of the oil pan and timing chain...part of the reason I got a 6MT e92 for peanuts. I inspected my belt tonight and it's nice and dry, valve cover gasket was done recently too.
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