billy_witort,

I would go with option #3 and if that proves to unnerving for you, I would go with #4. You will have to heat the entire muffler sysem up to a temperature that boils off the oil, so it may take a few long highway drives with lots of WOT runs. I would not clean the pipes with solvents (too dangerous) or use soap and water, nor would I drill holes. Soap and water is likely to be ineffective and make big mess to clean up, while the holes will ruin the functionality of the system (you will get lots of unwanted noise). Good luck, Jim

__________________
Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)