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Old 09-24-2012, 12:00 AM   #1
Hockeyguy02
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Oil filter bolt snapped

So I made a pretty bad mistake today. I was changing my oil and oil sensor today and as I was tightening up the oil filter cap ( with a torque wrench I borrowed from a buddy ) it didn't click at 16 foot lbs. and I ended up snapping the bolt at the bottom. So basically just about an inch a little less is stuck inside that long tube inside the oil filter housing ( sorry for my lack of terminology ) now I'm not sure how to fix this. I have yet to come across a long enough needle nose pliers to fit down the tube. I don't want to use an extractor just encase that shards go down into the tube. Can I replace the housing or what's my next step. Please help its my dd and right now it's sitting in my garage until I figure this out. Thanks.
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Old 09-24-2012, 12:15 AM   #2
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Use a belt wrench to grab the whole filter cap
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Old 09-24-2012, 12:41 AM   #3
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Use a belt wrench to grab the whole filter cap
How would that work. The bolt snapped off inside the skinny tube inside where the oil filter sits. I have the cap off. Sorry maybe my post is a bit confusing I'll take a picture tomorrow.
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Old 09-24-2012, 01:34 AM   #4
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I'm sorry, maybe I got confused indeed, what engine do you have?
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Old 09-24-2012, 05:37 AM   #5
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Old 09-24-2012, 01:05 PM   #6
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Can anyone help me figure this out ?
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Old 09-24-2012, 01:11 PM   #7
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of course you can replace the housing. gonna be messy though!
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Old 09-24-2012, 02:22 PM   #8
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of course you can replace the housing. gonna be messy though!
Can you inform me on how one might do that ? Like what are the steps. Maybe this might be a DIY I can't do.
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Old 09-24-2012, 02:52 PM   #9
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Being on an M3, the steps won't be identical. But, this DIY of the oil filter housing gasket should give you an idea of what it would take - http://forum.e46fanatics.com/showthread.php?t=657887. One way or another, you are probably going to need to pull the OFH either to extract the bolt or to replace the housing.

Good luck,

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Old 09-24-2012, 04:51 PM   #10
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Replacing the oil filter housing is not that tough of a job. It is a job that needs to be done on your car because the bolt that snapped off is at the bottom of the housing. It is possible that you could use an Easy Out to remove the fragment of bolt that remains, but you might want to have a new housing available just in case you cannot get the broken bolt out.

Find your car on www.realoem.com or www.penskeparts.com to figure out which oil filter housing you need. You will also need the gasket and the 4 (four) copper washers for the VANOS Oil Supply Line.

When you see the oil filter housing in the parts lists, you will be able to decide if this is a job that you can do or not. You have to remove the serpentine belt, the alternator, and the power steering pump. (These items can hang in place, but they are bolted to the housing that holds the oil filter.) You also have to disconnect the VANOS Oil Supply line -- DO NOT ATTEMPT TO SWIVEL THIS OUT OF THE WAY, REMOVE THE BOLTS FROM EACH END AND LIFT THE HOSE OFF OF THE ENGINE. (The fittings of this line will leak if they are twisted around.) You also have to take the air cleaner box off. (Your M3 motor might be different than the mere mortal 3 Series cars that I have done this housing on, so I'm just hitting the main points.)

The housing has 4 or 6 bolts to hold it on, there are different size bolts because some holes are deeper than others.

It should take you about 3 hours to replace the housing. A good mechanic that has done the job before can do it in an hour with the right equipment and tools. You will have to struggle a bit with getting to the right bolts and stuff, so it will take longer.
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Old 09-25-2012, 11:22 PM   #11
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Old 09-25-2012, 11:45 PM   #12
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Thanks guys I didn't even see the new posts. Weird. I'll definitely be getting on this ASAP.
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Old 09-26-2012, 01:30 AM   #13
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My bad, I assumed you had an M54 and broke the filter cap. Can't you weld a bolt on the broken piece to remove it?
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Old 09-26-2012, 05:58 AM   #14
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If you can get a hole into the top of that snapped bolt with a good drill bit, an extractor might work...of course, you'll want to vacuum or blow out the filings. Maybe you'll get lucky.

If the alternative is a whole new ofh, then it's worth a try.

GL!
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Old 09-26-2012, 09:35 AM   #15
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You might be able to grab it with reverse needle nose pliers that open when you squeeze them.
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Old 09-26-2012, 09:43 AM   #16
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Try and find a set of pliers or something that will fit in that... Otherwise maybe a bolt extractor? Or new filter housing.

That sucks :/

Also Get a quality in/lbs and ft/lbs torque wrench if you are going to DIY on your m3. Ft/lb torque wrenches arent very precise in low torque ranges
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Old 09-26-2012, 10:14 AM   #17
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Ouch, bolt extractor and a prayer is what you're going to need. If you can back the bolt out you'll just need one 11427839820 and a little more care. You may want to go ahead are remove the housing during extraction just to insure you don't loose any shavings down into the oil passages. Hopefully you'll be able to remove it so you don't need a new housing (BMW part number 11427839858

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Old 09-26-2012, 10:48 AM   #18
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Thanks for the input guys. I'll let you know how it turns out. I'm going to explore a few options before I start pulling everything apart.
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Old 09-26-2012, 11:40 AM   #19
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Sit down and get a tight grip on your checkbook...

If you have to replace the housing, it is gonna run about $350-ish.

FOR FUTURE REFERENCE
You can use a 1/4-inch ratchet handle to get the necessary torque to hold that bolt in and not strip the aluminum housing. The torque that is needed is just more than "hand tighten". If there was more to grip, then it could be done by hand, but the bolt head is small so you need a socket.
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Old 09-26-2012, 12:01 PM   #20
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Ouch, bolt extractor and a prayer is what you're going to need.
No kidding ... Not many things worse then a stripped/snapped bolt/screw.

Definitely try to avoid getting metal into the engine as well.
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