When I bought my '85 300D off the P.O. he told me the dealer that he dealt with all the time. I drove to the dealer and they let me inspect the maintenance records for as long as I wanted. The only thing they wouldn't let me do was take them with me. I got some scrap paper from them and just jotted down all the notes I needed. I looked at them for over an hour.
As with the previous post, if the seller doesn't want you to do that then I wold assume he has something to hide. myabe he doesn't want you to see the records or maybe talk with a mechanic about the vehicle. I'd tell the guy "No thanks!"
84 500SEL EURO 101K ( JUST LIKE MY 1ST WIFE. GLAD TO GET RID OF HER! )
85 300D 310K (sold)
90 350SDL 184K sold
83 300D 118K (sold)
88 300E 153k (sold)
93 400E 105K (sold)