I'm looking at buying a garage jack.

I looked in my owner's manuals however I wasn't able to locate how much my 1985 MB 300TD or 1983 300D weigh.

Can someone post this information?

They are VERY HEAVY !!!
LOL
You are probably in the 3500 lb range...
But you should be able to find it on a metal tag affixed to your car somewhere... check the drivers door pylon (?).. or in front of the radiator ...

1982-85 300D Turbodiesel 3515#
1981-85 300TD Turbodiesel 3780#

__________________
Never a dull moment at Berry Hill Farm.

CD???

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85 300CD
83 300TD
78 240D (daughter)

300CD Coupe 1978-81 3475#
300CD Turbodiesel 1982-85 3495#

__________________
Never a dull moment at Berry Hill Farm.