83 240D with no dash lights

[mimike6464]

Hi, I have just purchased a 1983 240D in excellent shape. I just seem to have 1 problem. The dash lights are inop. i checked the fuse box and the fuse was good. I replaced it anyway. Still no good. Checked the fuse box again and see the fuse controls the right rear tail light as well as the dash and i believe the trunk light. All are not working. Can anyone give me a suggestion of what i need to look at next? New to the Mercedes brand. Been with the old Spitfires and MG's mostly. Please help.