[srey]

I have an oil leak. Residue is everywhere on the bottom of the engine including back pay the bottom of the transmission. At first I feared that it would be a rear main seal, but the little port where you can see the flywheel is clean. I've wiped it clean to see where it drips again, but haven't gone so far to put in UV dye. Nothing above the oil pan is dirty, so I don't think it's the valve cover, though everything is really tight and it's hard to tell. I think it's the OPG. Any tips for making sure it's not the vcg too? Any other things I should do while I have the subframe dropped? Thanks in advance.

Edit: here is a pic where you can see the clean flywheel.

[feuer]

Most likely OPG.

[Cruiser124]

A Clean flywheel doesn't necessarily mean it's the Oil pan gasket. Although it's completely possible. But When the rear main seal starts to leak it will drip down and follow where the oil pan meets the block, and run towards the passenger side due to gravity (see my pic). I've replaced both and it really can go either way.

If it were the pan gasket I'd expect to see oil around the perimeter, passenger side because the engine is sloped that way, so that's where it's most likely to leak.

[srey]

I'm doing my oil pan gasket now (took long enough to get around to it), and it appears I'm missing one of the bolts that connects the transmission to the oil pan (MT). Ugh. Do you think I should be ok to source another bolt and not replace the RMS? Does anybody have the specs for those bolts handy?

When I ordered my gasket from FCPeuro I ordered the oil pan bolt set too. Would this set have the missing bolt? I think the transmission bolts are steel, so not one time use.

This is the set I ordered, so I think I'll need to source the bolt separately.
https://www.fcpeuro.com/products/bmw...-11132210959-1

[srey]

I looks like the oil pan bolt kit I bought doesn't include the missing bolt I need. It looks like the missing one is 8x50mm.

http://www.realoem.com/bmw/enUS/show...diagId=23_1035