BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > help..... oil leak

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      10-10-2012, 06:11 AM   #1
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Drives: 07 335i E92
Join Date: Sep 2012
Location: SAn jose CA

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help..... oil leak

today i heard serpentine belt started to squish so i used my phone to record so i can look what happened without taking parts out, DAMN .. oil leak
take a look at my clip..


looks like belt is fine.. but where is oil coming from?
is it from oil filter housing?
omg how much do i have to spend on this e92

and.. some where here..

i have checked the spark plug it is in Ok condition, no oil inside idk how that oil could jump into that holes

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      10-10-2012, 01:07 PM   #2
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Drives: E28 M5, E92 335i
Join Date: Sep 2011
Location: Northern VA

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Yep, looks like oil filter housing leak in the video. Requires draining of some of the coolant, but I'd do a full coolant flush if you haven't in the last 3 years.

The oil in the middle of the valve cover is from someone spilling oil when filling the engine. You will have to spray brake clean down in there and suck it out with an air-powered vacuum sucker. I would not use a vacuum cleaner, since brake cleaner is flammable and can catch fire in the vacuum's motor. Also, do not use water - the injectors are not waterproof.
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      10-10-2012, 01:32 PM   #3
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Drives: Black BMW 335i coupe
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Your car is an 07, so unless the oil filter housing has been changed before, you are probably due for it. I did my oil filter housing and valve cover gasket at the same time. Valve cover gasket will go eventually too. Also, when you do the valve cover, would be a great time to get the valves cleaned.

It's inevitable that you will have to do both at some point.
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