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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 > another oil leaking. is this the OFHG leak?



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      03-23-2016, 09:58 PM   #1
slowbutsure
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another oil leaking. is this the OFHG leak?

Hello. The OFHG was just replaced 2 years ago by bmw dealer. But now I noticed some oil pooling on top of the housing. Is it from from oil filter? I tightened the oil filter already and in fact, changed the oil and oil filter but still remains the oil pooling about 500 miles later. No oil leaking to the ground (maybe it's caught from the oil catcher?). It's not needing oil much yet. maybe 1 quart every 1.5k miles. Any ideas what it might be? Thanks in advance.


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      03-23-2016, 10:19 PM   #2
007_e350
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I had it there because my 3 bolts holding the oil cooler thermostat were loose, the thread was bad so I put in a bolt and tightened with nut and washer on the other side
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      03-23-2016, 11:43 PM   #3
slowbutsure
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Quote:
Originally Posted by 007_e350 View Post
my 3 bolts holding the oil cooler thermostat were loose
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Ok, thanks I will check. where is the oil cooler thermostat located at relative to the housing?
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      03-24-2016, 01:04 AM   #4
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1qt every 1.5k miles is a significant oil loss.
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      03-24-2016, 08:48 AM   #5
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I just had a leak in the same spot and the dealer replaced both the filter gasket and oil cooler gasket.
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