1993 300e 81k miles: I'd like to replace all suspension bushings. Is it just a matter of unbolting, removing and replacing or do I need special tools and completely drop/remove the control arm? Same for engine mounts: can i just r/replace old for new?

Its doable if you have tools, spring compressor, to remove control arms. A bushing press tool to press in the new ones. Hydraulic jack to raise engine for motor mounts... go for it

Engine mounts are easy, use a floor jack and a board to raise the engine. 6mm or so hex socket bolt underneath (be careful not to drop the bolt into the hole in the frame there, it's a pain to get back out...), 19mm on top. Left side is a bit of a pain, you will need to jack the engine some to get to the top bolt.

Suspension bushings are a different story. Front control arm requires removal, and that means a good internal spring compressor, you cannot use an external one. Rear suspention links do not have replacable bushings, they are steel sleeves vulcanzied in place, you must replace the links. Not too diffucult, but a PITA due to limited access. Get a new bolt kit and new sleeve kit for each link, the new ones don't always use the old bolts (they are from teh 210 chassis and last longer).

You will need to jack the rear and put it on jack stands for the rear links. Do a search, this subject has been discussed at length before.

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!