Ok I followed the tube. I beleive that I located the ICV/ETA. How do I remove it? There was some insulation that wouldn't budge with 2 clamps attached to it.

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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