Careful about the 350SD/SDL! Make sure if you buy one that it has had the new "redesigned" cylinder head. If not you are playing Russian roulette

The 3.5 litre turbodiesel was one of the most troublesome engines ever built by Daimler-Benz. Buying one that has not had the new cylinder head (or a whole rebuilt engine) can end up costing thousands of dollars. There was at one time a class action lawsuit against the company regarding this engine!