I'm guessing we won't be hearing from this seller again, unless he actually fixed the issues, which I doubt.

How badly cracked is the head? and perhaps you should consider moving the decimal place on your asking price one number to the left.

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1985 500SL Euro w/ AMG bits 130k
1984 300SD Turbodiesel 192k
1980 240D Stick China 188k
2001 CLK55 AMG 101k
2007 S600 Biturbo 149k Overheated Project, IT'S ALIVE!!!