There is a decent looking early 80's 380 SEC sitting about a block from my house with a for sale sign on it. They just reduced the price on it from $3900 to $2900. In researching it, I found out that it has been for sale since last November (found an old ad in the online version of our local newspaper). The car has about 199,500 miles on it.
I am going to call about more specifics, but I am interested in learning more about what questions I should be asking: what type of things that tend to go wrong, what are the potential expensive pitfalls of this vehicle.
I have owned an 81 300SD for twelve years, so I am familiar with older Benzes, just not gassers.

Thanks for the input!!

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Mine: 1987 MB 420 SEL - 66K (Dec 2019)
Mine:1991 MB 350SDL - 244K (Aug 2011)- Totalled 9/14/2016
Mine:1981 MB 300SD - 326K mi (July 1997)-sold
Wife's: 2008 MB C300 Sport - 110Kmi (April 2009)