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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 02-22-2014, 11:34 AM
Rahulk Rahulk is offline
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Mein Auto: E53 N62; E90 N52
Oil pan gasket

2006 325i Auto RWD

(Same as all the other N52 and N52N thru the E90 life cycle with an auto transmission. - oil pan gasket R/R)


So has anyone out there dropped the sub frame and change the oil pan gasket? I hear its about a solid 6 hr job.

What else can be replaced at that point? Ill probably do engine mounts....

My big question is on the auto transmission cooling lines... do I have to drain any fluid from the auto trans?
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  #2  
Old 02-22-2014, 11:44 AM
White94RX White94RX is online now
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You don't disconnect the lines. Just unbolt the brackets that hold them to the oil pan. I've done plenty of them.
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Old 02-22-2014, 11:48 AM
Rahulk Rahulk is offline
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Thanks for the info!!! I hate messing with the zf fluid and the filling process.

You ever use a Time-sert to re-tap the drain pan? What length... I know its a M12-1.5 just not sure on the length of the insert.
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Old 02-22-2014, 05:19 PM
White94RX White94RX is online now
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No, I haven't ever needed to. Only ever broken one drain plug bolt from over tightening. And they're hollow, so the bolt broke, and was easy to remove. No damage to the pan.

But I would guess its maybe about 3/4" long? You're correct on the thread size.
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Old 02-22-2014, 07:44 PM
Rahulk Rahulk is offline
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Thanks, yah I was thinking of putting one in (thread insert), as it always seems to be dripping oil from there to the belly pan....
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Old 02-22-2014, 09:08 PM
White94RX White94RX is online now
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Are you using a new crush ring every time? Its rare that they leak from the drain plug.
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Old 02-23-2014, 04:05 PM
Rahulk Rahulk is offline
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Yes, every time... It's easy, it comes with the filter... The only thing it could be is the bolt... I accidentally bought the manual transmission drain plug... It's a m12 x 10 instead of a m12 x 16. A little shorter... At one of the free oil changed I found the drain plug was super tight... I could barely budge it... And ever since then it's got worse.... Usually when it's oil change time... All the oil pan bolts are covered in oil, the base... And the drain plug... I thought maybe it was
From the top... But it's clean from above...


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Old 02-23-2014, 04:06 PM
Rahulk Rahulk is offline
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So how long does it take to change the oil pan gasket? And what do you do with the suspension components that are attached to the subframe? Do you actually remove it or just lower it in place?


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Old 02-23-2014, 04:43 PM
White94RX White94RX is online now
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Sounds like your oil pan gasket is leaking. Its not a quick easy job. The engine has to be supported from the top. And then drop the subframe. Leave the struts attached, but disconnect the steering column and it will drop down low enough to get the oil pan off.
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Old 02-24-2014, 08:52 AM
Rahulk Rahulk is offline
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I'm thinking of tackling it at the next oil change, which is 5k miles away... Or maybe the oil change after that... But I rather not wait to long... Bigger mess to clean up otherwise...


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