I have a 1994 w124 E320 wagon. The rear suspension is squeaking on both sides something awful. It's a constant squeaking when going down the road, and i can create it by just pushing the rear end down by hand even a little bit. However, I cannot create it once i've jacked the rear end up so I'm having trouble pinpointing where exactly the squeaking is coming from. I've replaced the sway bar links since it's easy, but that didn't make any difference. Also, the SLS system functions and doesn't leak.

Is this a common problem with the w124 rear suspension? Is there a likely piece of the rear suspension I should be checking next?

240dddd, get the rear end up on ramps or a stack of boards high enough that will permit you to get under your E320 wagon with the car's weight on the rear wheels. Then have a helper press down on the rear of the car so you can pinpoint the source of the squeaking.

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Fred Hoelzle

Highly likely to be your lower rear control arm bushing. Mine squeaked badly too. The part is cheap, the labor isn't terrible. Special tools helpful if you're doing it yourself.

I had this at the start of last year .So i brushed all the bushes on my multi links set up with atf fluid wipe off after a few days .I did try rubber lubricant but it only works for a day or two

As suggested, it is likely the lower control arm joint/bushing at the outboard/wheel end of the arm.

Good luck!!!

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"Rudeness is a weak man's imitation of strength" - Eric Hoffer