While i agree you should get a diagnosis before trying to fix something, just for the record, someone posted an article recently where they replaced all of the bushings, and I think, but am not sure, also the shocks on their 400e. the cost was about $1500 and they had the job done by a tech. If you really want “as new” that would be the way. If you wanted to go one better, you could employ a variety of nice enhancements, such as using the sway bars (and bushings) from a 500e along with Bilstiens HD shocks, as opposed to Bilstiens comfort shocks, which are standard. Adding these would be about $200 for the mix (for the sway bars and bushings) and you would be thrilled with the results. I think this also included a 4 wheel alignment. Check with the local indies. You can buy the parts at a substantial savings here and have your favorite tech do the work.

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...Tracy

'00 ML320 "Casper"
'92 400E "Stella"