This guy may be straight as an arrow but then again may resemble my dogs rear leg. Milage for starters is extremely low as quoted for year. Also would not mercedes be interested in helping at all with a bad engine at 30k? A case of buyer beware I imagine unless as people quote really goes cheap. Remember thats less than 4k a year total. Of course possible but not too likely. I would ask if all prior service information at dealers present with car.