Well, after over a year of tinkering I successfully disconnected the EGR on a computer controlled 1995 S-350. Car was using a little oil through the turbo and I had it overhauled. Had them put a pressure control wastegate instead of the stock vacuum controlled unit. Plumbed it to the intake manifold and adjusted it to 14psi boost @ 4000 rpms in third as the book calls for. Now let that computer try to cut boost. Car is 1 second quicker to 60 mph and is getting better fuel mileage but best of all, NO MORE GUNK AND SOOT IN THE INTAKE! Can you tell I'm happy or what.

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1995 S-350
370K + SOLD
1952 220B Cabriolet
39K kilometers + SOLD
1998 E300D
310K +
2012 E350 BlueTec
120K