new owner

[dieseldocc]

I am the proud new owner of a 1987 300sdl, it is in good shape but for a few dings & the front seat bottoms need recovered & all the power accessories work except the sun roof it shows 195000 but the odometer does not work so no tell what actual mileage is run & drives but for some clunking noise when going over bumps. what items should I check before I start driving it on a regular basis? I have been a diesel mechanic for 40 years but never on Mercedes.Any help will be appreciated
Thanks DD