I bought a good condition 84 300SD a few days ago. It's gold color and dark brown inside. The exterior is free from rust (except for a few little spots) and the interior is in good condition. It's a two owner vehicle with only 200K miles. I paid $3000.
I checked over it well before purchase and did notice a few things. On the positive side, the tranny fluid looked clean, the primary fuel filter was changed, and many of the rubber hoses have been changed. The cruise, windows, and sunroof work.
I also noticed an oil leak on the driver side of the engine. I'm thinking that the oil filter gasket is leaking or the oil cooler lines.
Lastly, the engine runs smooth at idle and starts up immediately in the 55 degree weather. However, when I put the car in drive, I get a vibrating feel and slight rattle until giving the car gas. It seems to even out after being warmed up. Could this be the transmission mount?
Here's a picture of the oil leak. I'll also post a link to the sound the car makes when in drive. Any thoughts on the sound?
300SD issue - YouTube