Crankcase Seal?

[BimmerDude]

I just wanted to know two things. Where can I find in Real OEM this part. And what is it? Thanks... I think my car might need this changed also. Warranty didn't want to change it at the time it was in for the oil sep. They said because of all the oil spilled all over the place, they felt they wanted to see if it would leak after. Well today I saw some dark oil on the floor of my garage, I say dark because I had my oils changed since I lost a lot of oil at the time of damage. I'm going to keep an eye on it for a couple of days and if it continues to leak, I'm going to take it back per my service guy's request. Good news is I'm covered, I also hear it is a big job. I'm thinking older oils from the damage ( I just got it back from the repair too) But I need to know if anyone has any idea, please let me know so that when and if I go there for this, I will have a piece of mind as to what is going to happen. Thanks...