rattle when slowing down..usually I hear guide rods @ low speeds when applying the brake...ball join Have you looked at your upper and lower control arm bearings?

Either way it sounds like the front end needs a pretty major overhaul!

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
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Enthusiast Service, Restoration & Tuning.
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Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta