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1991 300d 2.5 turbo

Rebuilt w/75k transmission - forward gears are not working, but reverse is fine. Speedo died 1 month ago and began shifting too early. Two days ago shifting was normal again, but today after coming to a stop the transmission disengaged from all forward gears. Any ideas?

- Rob
omaha, ne
 

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Similar problem just occurred on my wife's car (91 300D). Reverse works, but no forward gear will work. Is there any obvious cause?

Thanks, Gary
 

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Try the stage piston accessible from the side of the transmission. When they fail you lose forward gears. Cheapest thing to try before rebuild. Also when piston breaks/cracks/shatters the bar in there can drop into the pan so be ready to take it down also.

Good luck.
 
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