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BMW 3-Series (E90 E92) Forum
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Scratching my head: ATF Smell
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02-28-2015, 01:08 AM | #1 |
Second Lieutenant
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Scratching my head: ATF Smell
Ever since I did my mechatronic sleeve/pan & atf change I get atf/gear oil smell through my vents when I drive hard or for long periods of time. I have yet to see any staining of the underpan of my car when I take them off and the transmission itself looks dry. I typically can't even smell the atf from outside the car when I'm under it or in the engine bay. I did put about .5 qts more in than came out, maybe it's coming out of some vent?
Anyone have a clue? I'll get back under it this weekend ![]() Thanks! |
02-28-2015, 11:57 AM | #2 |
Colonel
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Wow this is weird, I have the exact same thing going on right now. Did a fluid change, more went in than I was expecting, and now there is an ATF smell after a drive. I assume this transmission has a vent, every other transmission does. I'm a little surprised that it's that sensitive that a half liter extra would cause it to be venting a lot.
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02-28-2015, 01:25 PM | #4 |
DIE ANTWOORD
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Do not remove the old fill plug with the engine not running or a bucket of oil will be gurgling out from the hole!
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King of the road says you move to slow
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02-28-2015, 06:01 PM | #5 |
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I *think* I figured it out. When I did my last oil change (around the time I changed ATF) I made quite a mess filling the car back up (wasn't paying attention).
Today I found a puddle of oil here: ![]() closer look: ![]() I think that oil is making its way out of that valley when I drive the car hard and that is what I'm smelling. Anyways, I hope it is ![]() I flushed it out with hot soapy water.. and now I smell oily water lol Last edited by eurojulien; 02-28-2015 at 06:49 PM.. |
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