Just service it regularly w/ a quality name brand D/M III fluid. I like to let the body and Tc drain for @ least half the day when I do change fluid.

It's impossible to reverse damage done w/o going in there.

Jonathan

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Blue Ridge Mercedes
Jonathan Hodgman
http://www.blueridgemb.com/
Enthusiast Service, Restoration & Tuning.
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Located in the Atlanta area
Specializing in all pre and post merger AMG's including Hammers and DOHC M117 engines.
Mercedes Repair Atlanta