Try to PM WHunter and JohnHef, John is a Mercedes Mechanic and WHunter has a very wide range of experience including Mercedesand may have detailed knowledge of your specific models transmission...I know there are others here too....hopefully they will answer real soon...wish I knew more about this specific transmission to give a better answer.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche