Best year for w126 diesel?
I'm in the market for a w126, long wheelbase. I don't need a fast car, but I do want one that will last a long time. I'm pretty sure that means a 300SDL is the right choice for me, though maybe I should also consider the 300SEL?
I know that Mercedes sometimes makes small--but important--changes in their engines. Is there a particular year that is more (or less) trustworthy than others? I'm open to either 5 or 6 cyl models. As I said, longevity is more important than speed for me.
I don't expect a "good year" to substitute for good maintenance. I just want to know if there are any rules of thumb, along the lines of "beware of 350SDL," etc.