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Old 09-07-2012, 05:07 PM   #12
tomoyer
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Join Date: Aug 2011
Location: Reading, Pennsylvania
Posts: 773
My Ride: 03 325xi, 03 330xi
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There are some oil separators out there that have insulation on them that helps the slug from building up and the cost is about the same as ones without like came on the car. If you need to do the oil filter housing gasket, start there first, leaving it apart, you will gain extra room and better viewing to do the oil separator and its 4 hoses (you are replacing all 4 of the hoses? Since they are plastic, they usually break when trying to take off and it is easier to get them out if you break them). Make sure when you do this job that you also disconnect the battery ground and insulate it. I have found that you don't need to completely remove the throttle body, just take the bolts out and move it to the side (unless you are planning on cleaning it really good.
A good rule to follow, when ever you are going any repairs on the car that involve electronic/electrical connections, disconnect the battery ground. ixtoxi was lucky that he didn't take out anything when disconnecting the alternator cable with the battery still connected!
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