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11-08-2019, 05:37 PM | #1 |
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Found traces of old oil under the car, what can this be
Hi all, i purchased a 135i n54 and as i am doing mods now i saw some dirty oil what looks like under transmission. does anyone know what this could be. not sure where the oil pan gasket is. Attached 2 pictures. It is gritty and looks pretty old. Thanks everyone!
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11-08-2019, 06:17 PM | #2 |
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Drives: 2008 135i E88
Join Date: Aug 2019
Location: South jersey
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Not sure if this is your issue but soon after I bought my 135i I found a oil leak in the oil filter housing, I needed a new gasket.
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11-09-2019, 12:59 PM | #4 |
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Yeah, that's the oil pan gasket leaking.
Considering you're not sure where that is, you're looking at anywhere from $800-$1200 depending on the hourly rate and how good (fast) they are. If you aren't 100% positive that your water pump and thermostat have been replaced, do them at the same time.
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1and1
135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg |
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11-09-2019, 02:15 PM | #5 | |
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Quote:
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11-09-2019, 06:05 PM | #6 | ||||
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Quote:
Quote:
See where it's coming from... If it a small leak then maybe you can leave it... Hopefully not something that turns into something bigger... |
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11-09-2019, 06:54 PM | #7 |
C2H5OH
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Mines been like that for the last 100,000 miles. For as difficult as the job is, oil seems pretty cheap.
Though now that I have the engine out of my car I kinda feel that leak is from the front oil drain. Even harder to deal with. |
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11-13-2019, 11:21 AM | #8 |
Colonel
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Check for oil leaks from the Oil Filter Housing as well. It's been reported that oil can find it's way over to the passenger side like that when the OFHG is leaking. OFHG leak would be more urgent than oil pan gasket leak.
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11-14-2019, 01:34 PM | #10 |
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Yeah, cleaning it is the correct first step, then monitor from there. My 135 has been spotless apart from the valve cover gasket. My X3 had the oil pan gasket go and it looked just like this, but worse. It got to the point of losing a quart ever 2-3k miles before I decided the effort was worth it.
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11-26-2019, 12:32 PM | #11 |
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Clean it well and monitor from there. It could be a rear crank shaft seal leak. Finger crossed!
Just had my shaft seal replaced as there's a minor leak. Not exactly a difficult job but a lot of components need to be removed and if you have the right tools. |
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