My only concern would be the no records. You might be able to find the dealer records somehow. Mercedes dealers are usually pretty good about this. There have been other threads on this subject. Obviously it depends a lot on how it was cared for. Also the area it was driven in. And was it in a flood? Hopefully not... Mine is near 200K and no major issues yet. Still burns no oil. That price seems good as long as there isn't some hidden "surprise". Original owner cars are always preferable of course, or second owner with records.

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1998 C230 330,000 miles (currently dead of second failed EIS, yours will fail too, turning you into the dealer's personal human cash machine)
1988 F150 144,000 miles (leaks all the colors of the rainbow)
Previous stars: 1981 Brava 210,000 miles, 1978 128 150,000 miles, 1977 B200 Van 175,000 miles, 1972 Vega (great, if rusty, car), 1972 Celica, 1986.5 Supra