Wow, that is awesome. Seriously. If you've gotten that much out of suspension pieces, it's beyond time for replacement of rubber bushings and the flex disc. I would indeed match up some new shocks for the rear. Resistor tips/caps for spark plugs are ready to be replaced by now as well. Inspect the control arms and make sure they are in good shape.

All my front bushings/bearings were done at 70k/8 years, flex disc around 80k, resistor tips at 85k. Most of these items are age-related more than wear, so at your mileage and age, I'd say you would be smiling when you drive it after replacing these parts. It will make a difference, and a nice birthday present for your 210

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former: 83 300D, 97 C230, 93 400E

current: 08 C300 Luxury , 92 500SL