The transmission shifter rattles when i'm going down the road in drive. There is a little bit of play in there but if I stick an ink pin between the D slot and the shifter to apply a little bit of pressure it stops. And a couple of times the transmission will not engage in D unless I pull it down a little bit. Is there a little bushing in there that would make it do this?

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1985 Mercedes 300DT

Classic sign of worn shifter bushings.

They are available as replacements and need to be pressed into the shifter arm and the transmission arm. I removed the shifter to do this job, but, others have managed to get a suitable vice grip in there and press them in place while the shifter remains in the vehicle.