Sounds like you got a gem. The price on these cars really depends on the condition. If the condition is as great as you say, I'd say it's worth the price and maybe even more. According to your sig you're starting to have a pretty nice collection of MB diesels. The 190D is a non-turbo, correct? If I were you, I'd keep at least one turbodiesel, but then again I live in a mountainous area. In NJ the non-turbos probably perform pretty well. My non-turbo E300D is decent in the city and on the open highways, but getting over the mountains is quite a workout for this car. For the TDI it's a piece of cake.

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2004 VW Jetta TDI (manual)

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