My father bought a 2004 brand new and owned it for nearly three years. Fantastic car, but he only put 2k on it during those 3 years.

Buy a bumper to bumper warranty if it doesn't come with one, and you'll be fine.

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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!!!