Unfortunately (for sellers) the price of the MB diesels in this year range has been dropping significantly over the past few years compared to the W123's whose values seem to be slowly going up. I bought my W210 less than two years ago for 14K on Ebay and recently I couldn't even sell it for 12K even though I've put in many thousands of dollars in repair and maintenance. Now I'm actually somewhat glad that it didn't sell because I still like the car a lot, and I would probably miss it if I no longer had it. If you can afford it maybe you should keep your diesel in addition to the new car.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL