My mom has the same year/mileage car and it has no problems at all. She loves it. ~35mpg around town and ~45mpg on the highway. That is a really good price too even with that much mileage. It has excellent power around town i.e. low-mid rev which is unlike any MB diesel that I have ever driven (quite a few). Throw in the performance chip ($300) very respectable (much better than the E320) 0-60 times too.

http://www.speedtuningusa.com/

E 300 TD 177 hp / 330 nm to 218 hp / 412 nm $275.00

increase = 41 hp 82 nm
= 41 hp 60 lb-ft

better intercooler = +++