I'm going to replace the o-rings first, hopefully I will get that diesel smell out of the cabin. I'll see how it's running and then I will look for other leaks and such. My engine mounts are pretty worn, primarily the one on the drivers side. The leaky IP doesn't help it much..they definitely need to be replaced. Even with thus little quirk..my 0-60 time is still 12 to 15 secs. She runs fine on the road.

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1995 E420 152k
1991 300D 2.5 348116 daily driver
1992 300E 2.6 196k-work in progress(head gasket)
2002 BMW 745Li 93k