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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 > Oil pan gasket?



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      07-04-2014, 05:02 PM   #1
z19930612
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Oil leaks between the transmission(MT) and oil pan
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      07-04-2014, 09:02 PM   #2
rooringhusky
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Could be the rear main seal...
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      07-04-2014, 09:21 PM   #3
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That is coming from higher and more forward. Check oil filter housing gasket. If there is not leaking around that, check vanos solenoids. If nothing there, search around perimeter of oil pan gasket. Nothing there, then likely the rear main. Also, id check rear turbo inlet pipe connection to turbo...a lot if oil goes through there unfortunately.
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      07-05-2014, 08:27 PM   #4
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Quote:
Originally Posted by pwr hungry
That is coming from higher and more forward. Check oil filter housing gasket. If there is not leaking around that, check vanos solenoids. If nothing there, search around perimeter of oil pan gasket. Nothing there, then likely the rear main. Also, id check rear turbo inlet pipe connection to turbo...a lot if oil goes through there unfortunately.
Ha, just done oil change and oil filter change then found this, hope those are just oil that leaks out when I took off the filter cap
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      07-06-2014, 07:20 PM   #5
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Clean it up check it after a week. Or clean it up and leave the car turned on. I have that same leak slow leaking but very slow. I think it's oil pan gasket because mine is leaking near the oil pan.
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      07-06-2014, 08:52 PM   #6
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A sure way to find out where it is is this method: Grab UV dye made for oil and a black light. Put the dye in your oil and then turn the car on while its on ramps/jack stands. Use the black light and figure out where the leak is coming from. Best of luck.
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      07-07-2014, 09:09 AM   #7
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Cool tip!
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