Oil Filter Housing - Has anyone done it?

[Cadeez]

I've had a pretty nasty oil leak for some time now, at least a quart a month and I don't drive much. I figured out it was the oil filter housing/gasket, which apparently is pretty common, per my local BMW shop. I'm putting in a new radiator this weekend (which hopefully won't be too bad...), so I figured what better time to tear into the oil filter housing leak issue, than when I'll have a ton of room to do it! Has anyone done this repair before? The housing itself is ~$200+, but I don't think I actually need the whole housing, only the small inner gasket...which is $4.85. My BMW shop said something about the flange that butts against the block possibly warping, so it's best to replace the housing as well. However, their job is also to make $$$, so I don't see that being the case. Any tips on the job itself or the housing vs gasket replacement would be great

http://www.ecstuning.com/BMW-E46-330...13838/ES23884/
http://www.ecstuning.com/BMW-E46-330...19855/ES23900/

[WOLFN8TR]

Mine was leaking really bad when I bought my car. BMW wanted $985 to replaced the entire OFH! I replaced the gasket/oring for $7 and no more leak. That was 2 years ago. No need to buy the housing.

[ELCID86]

Yes, not a bod job. Lot's of other things to do "while you're in there"--Clean ICV, DISA, throttle body, etc. Upper and lower intake boots?

http://forum.e46fanatics.com/showthread.php?t=659100

[Vas]

Replace the gasket. Not a bad job to do at all.

[Cadeez]

Ahhh, that is music to my ears, thanks for the quick replies gentlemen! I'll be so happy to get this all cleaned up, once and for all

Awesome DIY and pics, thanks for the link ELCID86!! Not a bad idea to take care of some of these too (Clean ICV, DISA, throttle body)

Yes, not a bod job. Lot's of other things to do "while you're in there"--Clean ICV, DISA, throttle body, etc. Upper and lower intake boots?

http://forum.e46fanatics.com/showthread.php?t=659100

[LivesNearCostco]

If you need to do the CCV, that's a good one. I did my CCV several months ago, and doing CCV with both OFHG and intake manifold in place is a big PITA. Would have been much easier with OFHG removed or leaning to the side. Good time to replace VANOS oil line if it's leaking, since you have to disconnect at least one end of it.

It is a good time to inspect and clean DISA, throttle body, IACV, and intake boots, but I don't think you have to remove any of those to do the OFHG, so it's not mandatory.

In my case tightening the 6 OFH bolts to spec still allowed a leak but I tightened them down extra and the leak stopped. I think the spec was about 14 foot-lbs and I tightened the bolts to 20 foot-lbs, but check the torque spec, as you don't want to risk stripped holes in the block. I did my OFHG 3 or 4 years ago and a recent check showed it might have one really slow leak now, but not nearly as bad as it was when I replaced it.

[Cadeez]

So many acronyms, makes a guy feel like noob haha... Are there any good DIY's, or do's & don'ts for how to "clean" each of these valves/parts? Any chance you have the part# or RealOEM page for the Vanos oil line?

Luckily I was able to google the DISA & IACV, and it looks like there are some youtube vids about them.

[Cadeez]

If you need to do the CCV, that's a good one. I did my CCV several months ago, and doing CCV with both OFHG and intake manifold in place is a big PITA. Would have been much easier with OFHG removed or leaning to the side. Good time to replace VANOS oil line if it's leaking, since you have to disconnect at least one end of it.

Is this the Vanos oil line you were referring to?
http://www.ecstuning.com/BMW-E46-330...Vanos/ES23138/

[Vas]

That is the vanos line.

When I did my gasket, I replaced the vanos line and both pulleys.

[melonz]

While the alternator was removed I replaced the voltage regulator as well.